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HomeMy WebLinkAboutDERR-2025-002999Chromalox Inc. | 117-593692-24002 rpsgroup.com 1 4801 Southwest Parkway, Parkway 1, Suite 185 Austin TX 78735 T +1 512 347 7588 April 25, 2024 Christopher Howell P.G., Project Manager Division of Environmental Response and Remediation Department of Environmental Quality P.O. Box 14480 Salt Lake City, UT 84114-4840 Re: Response to Comments, Utah Department of Environmental Quality, First Bi- Annual 2023 Groundwater Monitoring Report, Chromalox, VCP #073, dated May 2023; and Second Bi-Annual 2023 Groundwater Monitoring Report, Chromalox, VCP #073, dated November 2023 Dear Mr. Howell: RPS, on behalf of Chromalox, Inc. (Chromalox), is pleased to provide you with our response to your comments on the two submittals referenced above. Our response to your comments is as follows: General Comments: 1. Based on the data and information submitted to date, it appears the previous in-situ groundwater injections have not achieved the site-specific goals, as groundwater concentrations remain elevated in wells such as MW-13S and MW-14S. While monitoring is an important tool at this site, please propose a strategy to complete site characterization efforts (or document that the site has been sufficiently characterized), evaluate all potential exposure pathways, and propose a comprehensive remedial strategy addressing the impacts at the site based on the specific future land use. Response: Focusing on source areas AOC-4 and AOC-6, a review of groundwater analytical trends following the October 2019 injection of sodium persulfate and 12% peroxide mixture (Oxygen Reducing Compounds – ORC) was not as favorable as we had desired. The reasons for this are likely the anisotropic nature of the area soils and geology (see Attachment 1-Cross-Sections). That said, a closer review of the trend graphs does indicate significant reductions of chlorinated solvents in some monitoring wells (e.g., MW-12S, MW-12D, MW-13D, MW-14D, MW-7, and GMW-7 - see Attachment 2-Updated Historical Groundwater Analytical Results, and Attachment 3- Updated Analytical Trend Graphs). Christopher Howell P.G. April 25, 2024 Chromalox Inc. | 117-593692-24002 rpsgroup.com 2 Notwithstanding the above discussion, Chromalox believes that, since groundwater is the remaining exposure point to COCs, that focusing on a risk-based closure relying on institutional controls makes the most sense. Moving forward Chromalox intends on focusing on the following: Further lateral delineation to the north and east; Further documentation of spatial delineation; A formal exposure assessment; and Demonstration that the plume is stable or declining in spatial extent. 2. Multiple historic groundwater monitoring reports have not been finalized. To limit the need to revise older documents, please address the technical comments below and use the same format moving forward with the new documents. The revised documents will be considered the master documents for the site. Response: Chromalox will incorporate UDEQs technical comments, and responses provided here, into future groundwater monitoring and similar reports. The next groundwater monitoring report (transmitting March 2024 monitoring results) is expected to be finalized in May 2024. 3. The quality assurance sections only list samples collected during the current sampling event. Per the approved Quality Assurance Project Plan (QAPP), please expand the quality assurance section to discuss the following: a. Determine if Data Quality Objectives have been met by assessing the PARCCS parameters (Precision, Accuracy, Representativeness, Comparability, Completeness, and Sensitivity. QAPP Sections 1.4.2.1-1.4.2.6); and Response: The analytical data from the March 2023 and September 2023 groundwater monitoring events have been assessed according to the needs of the QAPP and is incorporated in a new Data Useability (DUS) Section. The DUS document can be found in Attachment 4 and will be incorporated into all future GWM and similar reports. b. Evaluate if the data is usable for project needs. Response: The analytical data from the March 2023 and September 2023 groundwater monitoring events has been assessed according to the needs to the QAPP and is incorporated in a new Data Useability (DUS) Section. The DUS document can be found in Attachment 4 and will be incorporated into all future GWM and similar reports). As per the DUS, the data is deemed useable for its intended purposes. 4. Analytical Tables and Laboratory Data Sets- To properly assess data quality objectives as defined in the QAPP, analytical tables, and laboratory data reports must reference the actual Method Detection Limit (MDL) rather than the laboratory Reported Detection Limit (RDL). Please have Pace Laboratories report the MDL in future data reports and revise the tables accordingly. Response: Noted. Going forward analytical tables will reference the Method Detection Limit (MDL). Sample Detection Limits (SDLs)/Reported Detection Limits (RDLs) will be Christopher Howell P.G. April 25, 2024 Chromalox Inc. | 117-593692-24002 rpsgroup.com 3 evaluated during the DUS process to determine, in rare instances, when and if sample quality issues (e.g., dilution, reproducibility, etc.) results in a detection limit that is not properly below its corresponding Applicable, Relevant, and Appropriate Requirements (ARAR) (e.g., Federal MCL, USEPA RSL, or Utah Water Quality Standard, etc.) 5. Analytical Tables- Please fix table formatting so that the notes are legible and not cut off. Response: Noted, the formatting has been corrected. Please find in Attachment 5 Table 2 – 2023 Groundwater Monitoring Analytical Results and Attachment 6 Table 2 – 2024 Groundwater Monitoring Analytical Results. The revised analytical tables consolidate the spring and fall 2023 GWM events as well as spring 2024. Please note that this table also removes SVOCs and PAHs (as per UDEQ’s March 6, 2024 approval). 6. Analytical Tables- Please review and ensure all exceedances are properly notated in the table and called out in the text (e.g., spring sampling MW-13S for Trichloroethene, fall sampling MW14-S for 1,1, DCE). Response: Noted. All exceedances will be properly noted in the tables and the text. Please find in Attachment 5 the revised analytical tables consolidating the spring and fall 2023 GWM events as well as spring 2024. 7. For better readability, please include figures showing “analytical exceedances” for the current rounds of sampling in a manner similar to Figures 4-7 in the previous groundwater sampling reports. Response: Noted. All future GWM reports, and similar documents will contain figures with callouts of analytical results, as appropriate. Please see in Attachment 6 Revised figures containing callouts of analytical results from 2023 GWM efforts. 8. Low-flow sampling should include turbidity stabilization, which was not included in the spring sampling round. Please include turbidity in all future groundwater sampling events to ensure consistency with the proposed sampling procedures. Response: Noted. Going forward, all future GWM efforts will include efforts to stabilize all low-flow field parameters as described in the most recent US EPA or UDEQ low-flow SOP/guidance documents (e.g. https://documents.deq.utah.gov/environmental-response-and-remediation/cercla/voluntary- cleanup-brownfields/DERR-2022-004037.pdf, etc.) 9. Groundwater trend graphs are presented in the Appendices of the reports. Please review the trends and discuss the findings in the text to add context to the information included in the reports. The trend graphs have been revised and better organized to provide meaningful analysis (Attachment 3 Updated Analytical Trend Graphs). Going forward such relevant analysis, similar to what was verbally discussed during our February 29, 2024 meeting, will be incorporated into future GWM and similar reports. Christopher Howell P.G. April 25, 2024 Chromalox Inc. | 117-593692-24002 rpsgroup.com 4 Specific Comments: 10. Section 3- Please refer to Table 1 in the reports which provides a list of all wells that were gauged/sampled. If the wells were not sampled, please add a description of why they were not sampled (e.g., the well was removed from the sampling plan in 2018). Response: A revised Section 3 with the requested information will be incorporated into all future GWM and similar reports. 11. Section 4.3- This section includes text indicating bladder pumps were used to purge and sample wells. However, the sampling crew used peristaltic pumps for the purging and sampling of the wells based on field observations. Please revise the text accordingly. Response: Reference to blader pumps is in error. A revised Section 4.3 with the requested revision will be incorporated into all future GWM and similar reports. 12. Section 4.6- There have been multiple rounds of sampling. Please indicate if the previous investigation derived waste (IDW) remains on the site or if IDW has been properly disposed of. Please provide documentation on how the IDW was or is being managed. Response: IDW was removed by Kleen Harbors between December 2022 and December 2023. No IDW remains on site. Documentation of IDW disposition can be found in Attachment 7 Investigation Derived Waste. Similar documentation will be provided in all future GWM and similar reports. 13. Section 5.1 (fall sampling round only)- Please remove “approximately” from the number of analytes exceeding screening levels. Response: Noted. All future GWM reports, and similar documents will incorporate this technical comment, as appropriate. 14. Section 5.1.1 (spring sampling round only)- indicates the results from monitoring well GMW-6, however, Table 2 does not contain any data for this round of sampling at GMW-6. Please review and revise the Table as necessary. Response: The noted text is in error. GMW-6 was last sampled in October 2022. The well was transitioned to a “gauge only” status with UDEQ approval. 15. Table 1 (GW Elevations)- Please add a table number to this Table. Please also include abandoned or lost monitoring wells and note when the wells were abandoned. If wells need to be repaired or re-established, please add notes providing more details. Response: Please see Attachment for the revised Table 1. All future GWM reports, and similar documents will incorporate this technical comment, as appropriate. Christopher Howell P.G. April 25, 2024 Chromalox Inc. | 117-593692-24002 rpsgroup.com 5 If you have any questions, please call me at 512 579 3315. Yours sincerely, Byron J. Ellington, CPG, PG (UT, TX) Director, Legacy Site Services byron.ellington@tetratech.com D 512 579 3315 Attachments cc: Craig Bushey, Director; Chromalox Inc., Environment & Sustainability (Electronic Copy) Stephanie Lara, Chromalox Inc., Sr. Environmental Specialist (Electronic Copy) Jeremy Spears, Chromalox Inc., (Electronic Copy) Attachments | UDEQ Response to Comments | Chromalox, Inc., Ogden, Utah | rpsgroup.com Attachment 1 Cross-Sections X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X XXXXXXXXXXXXXX X X X X X X X X NO R T H R U L O N W H I T E B O U L E V A R D WEST 2150 NORTH X X FORMER DEGREASING AREAS FORMER NICKEL PLATING/ETCHING TEST AREA SANDBLASTING OF F I C E S X X PROPANE TANK AND SHELTER MW-10B GMW-3 MW-5 MW-9 GMW-5 MW-8 GMW-6 MW-1 GMW-2 GMW-7 GMW-1 MW-7 MW-11 MW-15 MW-13S/ MW-13D MW-12S/ MW-12D MW-18 MW-17 MW-16 FORMER TCA DEGREASER TANK FORMER TCA DEGREASER TANK GP-17 GP-16 GP-13 GMW-8 GMW-4 INJ-4 INJ-5 INJ-3 INJ-6 MW-20 MW-21 MW-19 MW-22MW-14S/ MW-14D INJ-7 INJ-8 INJ-9 CHROMALOX 2150 RULON WHITE BOULEVARD OGDEN, UT 22 1 5 8 8 GRAPHIC 8/28/23 CS/JB NORTH DESCRIPTION: DATE: SCALE: DRAWN: FI L E : FIGURE: 0 50 100 CROSS-SECTION MAP SITE BOUNDARY LEGEND PREVIOUSLY INSTALLED WELL WELL INSTALLED IN 2019 WELL THAT WERE NOT LOCATED/ DAMAGED NEW MONITORING WELL INSTALLED OCTOBER 2021 NEW INJECTION WELL INSTALLED IN 2020 C D E B' B A D' A' C' E' CROSS-SECTION A 90 80 70 60 50 40 90 80 70 60 50 40 0 100 200 300 400 500 600 EL E V A T I O N ( A B O V E M E A N S E A L E V E L ) EL E V A T I O N ( A B O V E M E A N S E A L E V E L ) GM W - 4 GM W - 3 OL-CL SOUTHNORTH MW - 1 6 MW - 1 1 MW - 1 0 B GM W - 2 OL-CL CL-ML CL-ML CL CL CL CL CL CL CL CL CL CL SAND SILTY CLAY/CLAY CONCRETE ASPHALT LEGEND SHALLOW POTENTIOMETRIC SURFACE WELL SCREEN BORING LOG DESCRIPTIONS HORIZONTAL SCALE 1 INCH = 100 FEET VERTICAL SCALE 1 INCH = 10 FEET DEEP POTENTIOMETRIC SURFACE GRADUATION FROM CL-ML TO CL FILL CHROMALOX 2150 RULON WHITE BOULEVARD OGDEN, UT 22 1 5 8 8 GRAPHIC 8/29/23 JB NORTH DESCRIPTION: DATE: SCALE: DRAWN: FI L E : FIGURE: 0 50 100 CROSS-SECTION A-A' MAP ORGANIC SILTY CLAY INORGANIC SILTY CLAY CL SILTY CLAY- CLAY SP FINE-GRAINED SAND, POORLY SORTED SM FINE-GRAINED SAND ML SILT OL-CL ORGANIC SILTY CLAY CL-ML INORGANIC SILTY CLAY CROSS-SECTION B 90 80 70 60 50 40 90 80 70 60 50 40 BUILDING 0 100 200 300 400 500 600 PAVEMENT EL E V A T I O N ( A B O V E M E A N S E A L E V E L ) EL E V A T I O N ( A B O V E M E A N S E A L E V E L ) MW - 1 8 MW - 1 5 GP - 1 3 GM W - 2 LAWN GM W - 7 OL-CL OL-CL CL CL CL CL CL CLCL CL SP SP SOUTHNORTH SAND SILTY CLAY/CLAY CONCRETE ASPHALT LEGEND SHALLOW POTENTIOMETRIC SURFACE WELL SCREEN BORING LOG DESCRIPTIONS HORIZONTAL SCALE 1 INCH = 100 FEET VERTICAL SCALE 1 INCH = 10 FEET DEEP POTENTIOMETRIC SURFACE FILL CHROMALOX 2150 RULON WHITE BOULEVARD OGDEN, UT 22 1 5 8 8 GRAPHIC 8/29/23 JB NORTH DESCRIPTION: DATE: SCALE: DRAWN: FI L E : FIGURE: 0 50 100 CROSS-SECTION B-B' MAP ORGANIC SILTY CLAY INORGANIC SILTY CLAY CL SILTY CLAY- CLAY SP FINE-GRAINED SAND, POORLY SORTED SM FINE-GRAINED SAND ML SILT OL-CL ORGANIC SILTY CLAY CL-ML INORGANIC SILTY CLAY 90 80 70 60 50 40 90 80 70 60 50 40 0 100 200 300 LAWN EL E V A T I O N ( A B O V E M E A N S E A L E V E L ) EL E V A T I O N ( A B O V E M E A N S E A L E V E L ) MW - 1 7 MW - 1 3 D NORTH SOUTH OL-CL CL GM W - 5 SM CL CL CL CL CL CROSS-SECTION C SAND SILTY CLAY/CLAY CONCRETE ASPHALT LEGEND SHALLOW POTENTIOMETRIC SURFACE WELL SCREEN BORING LOG DESCRIPTIONS HORIZONTAL SCALE 1 INCH = 100 FEET VERTICAL SCALE 1 INCH = 10 FEET DEEP POTENTIOMETRIC SURFACE FILL CHROMALOX 2150 RULON WHITE BOULEVARD OGDEN, UT 22 1 5 8 8 GRAPHIC 8/29/23 JB NORTH DESCRIPTION: DATE: SCALE: DRAWN: FI L E : FIGURE: 0 50 100 CROSS-SECTION C-C' MAP ORGANIC SILTY CLAY INORGANIC SILTY CLAY SILTY SAND CL SILTY CLAY- CLAY SP FINE-GRAINED SAND, POORLY SORTED SM SILTY SAND ML SILT OL-CL ORGANIC SILTY CLAY CL-ML INORGANIC SILTY CLAY 90 80 70 60 50 40 90 80 70 60 50 40 0 100 200 300 400 500 600 CL CL CL CL LAWN EL E V A T I O N ( A B O V E M E A N S E A L E V E L ) EL E V A T I O N ( A B O V E M E A N S E A L E V E L ) MW - 1 2 D GM W - 4 MW - 1 5 WEST EAST GM W - 3 CL CL CL CL-ML OL-CL CL SP SP GM W - 5 CROSS-SECTION D CHROMALOX 2150 RULON WHITE BOULEVARD OGDEN, UT 22 1 5 8 8 GRAPHIC 8/29/23 JB NORTH DESCRIPTION: DATE: SCALE: DRAWN: FI L E : FIGURE: 0 50 100 CROSS-SECTION D-D' MAP SAND SILTY CLAY/CLAY CONCRETE ASPHALT LEGEND SHALLOW POTENTIOMETRIC SURFACE WELL SCREEN BORING LOG DESCRIPTIONS CL SILTY CLAY- CLAY SP FINE-GRAINED SAND, POORLY SORTED SM FINE-GRAINED SAND ML SILT OL-CL ORGANIC SILTY CLAY CL-ML INORGANIC SILTY CLAY HORIZONTAL SCALE 1 INCH = 100 FEET VERTICAL SCALE 1 INCH = 10 FEET DEEP POTENTIOMETRIC SURFACE GRADUATION FROM CL-ML TO CL FILL ORGANIC SILTY CLAY INORGANIC SILTY CLAY CROSS-SECTION E 90 80 70 60 50 40 90 80 70 60 50 40 BUILDING BUILDING PAVEMENT 0 100 200 300 400 500 600 700 800 900 1000 CL CL CL CL CL CL CL CL CL CL OL-CL OL-CL PAVEMENT EL E V A T I O N ( A B O V E M E A N S E A L E V E L ) EL E V A T I O N ( A B O V E M E A N S E A L E V E L ) MW - 1 2 D MW - 1 4 D MW - 1 3 D GM W - 7 MW - 1 1 WEST EAST SAND SILTY CLAY/CLAY CONCRETE ASPHALT LEGEND SHALLOW POTENTIOMETRIC SURFACE WELL SCREEN BORING LOG DESCRIPTIONS HORIZONTAL SCALE 1 INCH = 100 FEET VERTICAL SCALE 1 INCH = 10 FEET DEEP POTENTIOMETRIC SURFACE GRADUATION FROM CL-ML TO CL FILL CHROMALOX 2150 RULON WHITE BOULEVARD OGDEN, UT 22 1 5 8 8 GRAPHIC 8/29/23 JB NORTH DESCRIPTION: DATE: SCALE: DRAWN: FI L E : FIGURE: 0 50 100 CROSS-SECTION E-E' MAP ORGANIC SILTY CLAY INORGANIC SILTY CLAY CL SILTY CLAY- CLAY SP FINE-GRAINED SAND, POORLY SORTED SM FINE-GRAINED SAND ML SILT OL-CL ORGANIC SILTY CLAY CL-ML INORGANIC SILTY CLAY Attachments | UDEQ Response to Comments | Chromalox, Inc., Ogden, Utah | rpsgroup.com Attachment 2 Updated Historical Updated Historical Groundwater Analytical Result 2019 to Current Historical Groundwater Analytical Results Summary Date Collected 09/17/2019 02/19/2020 06/23/2020 06/25/2020 09/22/2020 11/4/2020 03/23/2021 10/7/2021 10/7/2021 03/30/2022 10/24/2022 03/28/2023 9/9/2023 3/26/2024 09/17/2019 02/20/2020 6/23/2020 09/23/2020 11/4/2020 03/19/2021 10/7/20201 03/30/2022 10/25/2022 03/28/2023 09/09/2023 VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0250 <0.0500 J4 <0.0500 <0.0500 J4 <0.0500 <0.01 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.0500 C3 <0.0500 J4 <0.0500 Benzene 0.005 0.00046 0.005 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0004 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 Bromomethane NE 0.0075 NE <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00250 <0.00500 <0.00500 C3 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 Carbon Disulfide NE NE NE NA NA NA NA NA NA NA <0.000500 <0.000500 NA NA NA NA 0.0012 J NA NA NA NA NA NA <0.000500 NA NA NA NA Carbon Tetrachloride 0.005 0.00046 0.005 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 Chlorobenzene 0.1 0.078 0.1 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 Chloroethane NE 21 NE <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00250 0.00109 J <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 Chloroform NE 0.00022 0.08 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 Chloromethane NE 0.19 NE <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00125 <0.00125 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00125 <0.00250 <0.00250 C3 J3 <0.00250 Dichlorodifluoromethane NE 0.2 NE <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 1,1-Dichloroethane NE 0.0028 NE <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 0.0257 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 0.00100 J 0.000903 J NA 0.000458 J 0.00046 J 0.000302 J 0.000468 J 0.000322 J 0.0016 <0.00100 1,2-Dichloroethane 0.005 0.00017 0.005 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 1,1-Dichloroethene 0.007 0.28 0.007 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 0.0794 <0.00100 <0.00100 <0.00100 <0.001 0.00178 0.00266 0.00158 NA 0.000758 J 0.00103 0.000578 0.00104 0.000926 J 0.00326 <0.00100 Cis-1,2-Dichloroethene 0.07 0.036 0.07 <0.00100 <0.00100 0.000168 J <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 0.000389 J NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 Trans-1,2-Dichloroethene 0.1 0.36 0.1 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 Di-Isopropyl Ether NE 1.5 NE <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 C3 <0.00100 <0.00100 Ethylbenzene 0.7 0.0015 0.7 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 p-Isopropyltoluene NE NE NE <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J4 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 2-Butanone (MEK)NE 5.6 NE <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 C3 <0.0100 <0.0100 Methylene Chloride 0.005 0.011 0.005 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.002 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 C3 <0.0100 <0.0100 Naphthalene NE 0.00017 NE <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 J4 <0.00500 <0.00500 n-Propylbenzene NE 0.66 NE <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 J4 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 1,1,2,2-Tetrachloroethane NE 0.000076 NE <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 J4 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 1,1,2-Trichlorotrifluoroethane NE 10 NE <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 Tetrachloroethene 0.005 0.011 0.005 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 Toluene 1 1.1 1 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J4 <0.000500 <0.000500 0.000347 J <0.00100 <0.00100 <0.00100 0.0004 J <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 1,2,3-Trichlorobenzene NE 0.007 NE <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 1,1,1-Trichloroethane 0.2 8 0.2 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 0.00363 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 1,1,2-Trichloroethane 0.005 0.00028 0.005 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 Trichloroethene 0.005 0.00049 0.005 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 0.000430 J <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 1,2,3-Trichloropropane NE 0.00000075 NE <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.001 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 1,2,4-Trimethylbenzene NE 0.056 NE <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00250 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 1,2,3-Trimethylbenzene NE 0.055 NE <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 1,3,5-Trimethylbenzene NE 0.06 NE <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 Vinyl Chloride 0.002 0.000019 0.002 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 Xylenes, Total 10 0.19 10 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.001 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE 0.000786 0.00208 J <0.00300 <0.00300 <0.00300 NA 0.00592 <0.000420 <0.000400 0.000828 B 0.000265 J <0.000400 0.000633 J3 J4 0.0023 0.0127 0.00903 0.0115 0.00544 NA 0.00626 0.00362 B 0.0045 0.00377 0.0132 0.00916 SVOCs - USEPA Method 8270C Chrysene NE NE NE NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA <0.00100 NA <0.00111 <0.00100 <0.00100 Hexachloroethane NE 0.00033 NE <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 NA NA NA NA NA <0.00100 NA <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 Benzo(a)anthracene NE NE NE NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA <0.00100 <0.00111 <0.00100 <0.00100 Benzo(b)fluoranthene NE NE NE NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA <0.00100 <0.00111 <0.00100 <0.00100 Benzo(k)fluoranthene NE NE NE NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA <0.00100 <0.00111 <0.00100 <0.00100 Benzo(g,h,i)perylene NE NE NE NA NA NA NA NA <0.001 <0.001 NA NA NA NA NA <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 Benzo(a)pyrene 0.0002 0.000025 0.0002 NA NA NA NA NA <0.001 <0.001 NA NA NA NA NA <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 Dibenz(a,h)anthracene NE 0.000025 NE NA NA NA NA NA <0.001 <0.001 NA NA NA NA NA <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 Naphthalene NE 0.00017 NE NA NA NA NA NA NA <0.00100 NA NA NA NA NA <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 Benzylbutyl Phthalate NE 0.016 NE <0.00300 <0.00300 <0.00300 NA NA <0.00300 <0.00300 NA NA NA NA NA <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 0.00105 J <0.00300 <0.00300 Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 <0.00300 <0.00300 <0.00300 NA NA <0.00300 <0.00300 NA NA NA NA NA <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 Di-N-Butyl Phthalate NE 0.9 NE <0.00300 <0.00300 <0.00300 NA NA <0.00300 <0.00300 NA NA NA NA NA <0.00300 NA <0.00300 0.000419 J <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 Diethyl Phthalate NE 15 NE <0.00300 <0.00300 <0.00300 NA NA <0.00300 <0.00300 NA NA NA NA NA <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 Dimethyl Phthalate NE NE NE <0.00300 <0.00300 <0.00300 NA NA <0.00300 <0.00300 NA NA NA NA NA <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 2,4-Dichlorophenol NE 0.046 NE <0.0100 <0.0100 <0.0100 NA NA <0.0100 <0.0100 NA NA NA NA NA <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 2,4-Dimethylphenol NE 0.36 NE <0.0100 <0.0100 <0.0100 NA NA <0.0100 <0.0100 NA NA NA NA NA <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 Diethyl phthalate NE 1.5 NE <0.00300 <0.00300 <0.00300 NA NA <0.00300 <0.00300 NA NA NA NA NA <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 2-Nitrophenol NE NE NE <0.0100 <0.0100 <0.0100 NA NA <0.0100 <0.0100 NA NA NA NA NA <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 Pentachlorophenol 0.001 0.000041 0.001 <0.0100 <0.0100 <0.0100 NA NA <0.0100 <0.0100 NA NA NA NA NA <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 Phenol NE 5.8 NE <0.0100 <0.0100 <0.0100 NA NA <0.0100 <0.0100 NA NA NA NA NA <0.0100 NA <0.0100 0.00883 J <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Acenaphthylene NE NE NE <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Benzo(a)Anthracene NE 0.00003 NE <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Benzo(a)Pyrene 0.0002 0.000025 0.0002 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Benzo(b)Fluoranthene NE 0.00025 NE <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Benzo(g,h,i)Perylene NE NE NE <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Benzo(k)Fluoranthene NE 0.0025 NE <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Chrysene NE 0.025 NE <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Dibenz(a,h)Anthracene NE 0.000025 NE <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Fluoranthene NE 0.8 NE <0.0000500 <0.0000500 <0.0000500 NA <0.000100 NA <0.000100 NA NA NA NA NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00111 <0.00100 <0.00100 Fluorene NE 0.29 NE <0.0000500 0.0000115 J <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Naphthalene NE 0.00017 NE <0.000250 0.0000245 J <0.000250 NA <0.000250 NA <0.000250 NA NA NA NA NA <0.00100 NA <0.000250 0.0000254 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.00100 Phenanthrene NE NE NE <0.0000500 0.0000115 J <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Pyrene NE 0.12 NE <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 1-Methylnaphthalene NE 0.0011 NE <0.000250 0.0000155 J <0.000250 NA <0.000250 NA <0.000250 NA NA NA NA NA NA NA <0.000250 0.000011 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA 2-Methylnaphthalene NE 0.036 NE <0.000250 0.0000224 J <0.000250 NA <0.000250 NA <0.000250 NA NA NA NA NA NA NA <0.000250 0.0000202 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA Other PAHs Varies Varies Varies ND ND ND NA ND NA ND NA NA NA NA NA NA NA ND ND ND ND NA ND NA NA NA NA NA Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 0.0119 0.0135 <0.0100 0.0147 0.0126 NA 0.0153 0.0119 <0.0100 0.0069 J 0.00727 J <0.0100 0.0131 0.0342 0.196 0.220 0.235 0.201 NA 0.234 0.253 0.238 0.214 0.264 0.233 Barium 2 3.8 2 0.288 0.312 0.327 0.327 0.319 NA 0.352 0.327 0.324 0.344 0.301 0.297 0.300 0.148 0.693 0.694 0.692 0.65 NA 0.709 0.703 0.705 0.687 0.715 0.646 Cadmium 0.005 0.0092 0.005 <0.00200 <0.00200 <0.000563 <0.000563 <0.00200 NA <0.00200 0.00155 J 0.00216 0.000668 J 0.000491 J <0.00200 <0.00200 <0.005 <0.00200 <0.00200 <0.00200 0.000674 J NA 0.00113 J 0.00129 J 0.000574 J <0.00200 <0.00200 <0.00200 Chromium 0.1 NE 0.1 <0.0100 0.00145 J <0.005 <0.005 <0.0100 NA <0.0100 0.00141 J 0.00174 J <0.0100 <0.0100 <0.0100 <0.0100 0.0014 <0.0100 <0.0100 <0.0100 <0.0100 NA 0.00187 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 Iron NE 14 NE <0.100 <0.100 <0.0458 <0.0458 <0.100 NA <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 3.03 <0.100 0.0553 J 0.108 0.0477 J NA 0.0934 J 0.371 0.0874 J 0.409 0.129 <0.100 Lead 0.015 0.015 0.015 <0.00500 <0.00500 <0.00295 <0.00295 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 0.00785 <0.0200 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 0.00716 Manganese NE 0.43 NE 0.0482 0.0403 0.0372 0.0379 0.0347 NA 0.0283 0.0324 0.0328 0.0286 0.039 0.0312 0.0388 0.393 0.0871 0.0928 0.0871 0.0701 NA 0.0906 0.078 0.0751 0.0703 0.103 0.0724 Selenium 0.05 0.1 0.05 <0.0100 <0.0100 <0.00735 <0.00735 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 0.00951 J <0.0100 <0.0100 0.0108 <0.0100 <0.0100 <0.0100 <0.0100 NA 0.0120 <0.0100 <0.0100 <0.0100 0.0111 <0.0100 Silver 0.1 0.094 NE <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.005 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 Mercury 0.002 0.00063 0.002 <0.000200 <0.000200 <0.0001 <0.0001 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.0002 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 Other Dissolved Metals Varies Varies Varies ND ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Notes: Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Bold value indicates concentration exceeds Utah Groundwater Quality Standards. Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019.Underlined and Italicized value indicates concentration exceeds USEPA RSLs. All concentrations expressed in milligrams per liter (mg/l).Shaded value indicates concentration exceeds USEPA MCLs. Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated Note that some RDLs exceed screening levels. with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V).** Lab error was not initially analzed until after hold time expired Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels MW-5MW-1 MW-100 (MW-1 Duplicate) MW-1 MW-102xdup (MW-1 Duplicate) MW-1 mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Page 1 of 20 2019 to Current Historical Groundwater Analytical Results Summary Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/17/2019 02/18/2020 02/18/2020 6/25/2020 09/22/2020 11/3/2020 09/22/2020 11/3/2020 03/22/2021 04/01/2022 10/27/2022 03/29/2023 09/09/2023 3/26/2024 09/16/2019 02/20/2020 02/20/2020 6/22/2020 09/22/2020 11/4/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 NA <0.0500 <0.250 <0.0500 J3 J4 J5<0.0500 <0.0500 J4 <0.0500 <0.01 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.0500 <0.0500 J4 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.0004 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 NA <0.00500 <0.0250 <0.00500 J3 <0.00500 <0.00500 <0.001 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.002 NA NA NA NA NA NA NA <0.000500 NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 NA <0.00500 <0.0250 <0.00500 J3 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 NA <0.00500 <0.0250 <0.00500 J3 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 NA <0.00250 <0.0125 <0.00250 J3 <0.00250 <0.00250 <0.001 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00125 <0.00250 <0.00250 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 NA <0.00500 <0.0250 <0.00500 J3 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.00500 C3 <0.00500 <0.00100 0.00140 0.00146 0.00110 NA <0.00100 NA 0.0105 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 0.000211 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 0.0547 0.0543 0.0211 NA 0.000372 J NA 0.000394 J <0.00500 0.000372 J3 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 0.000307 J NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0500 <0.0100 J3 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 J4 NA <0.00500 J4 <0.0250 <0.00500 J3 <0.00500 <0.00500 <0.00500 <0.002 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0500 <0.0100 J3 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 J4 <0.00500 J4 <0.00500 NA <0.00500 NA <0.00500 <0.0250 C3 <0.00500 J3 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 C3 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 C3 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 C3 <0.00100 <0.00100 0.00132 0.00130 0.000593 J NA <0.00100 NA 0.000275 J <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA 0.00091 J <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 NA <0.00250 <0.0125 <0.00250 J3 <0.00250 <0.00250 <0.00250 <0.001 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.0150 <0.00300 J3 <0.00300 <0.00300 <0.00300 <0.001 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 0.000555 <0.00300 <0.00300 0.00280 <0.00300 NA <0.00300 NA 0.000206 B, J 0.000262 0.000858 B 0.000562 B <0.000400 0.0013 0.00191 <0.00300 <0.00300 <0.00300 <0.00300 NA 0.000453 0.00138 B 0.000424 B 0.000336 J <0.000400 NA NA NA NA NA NA NA NA NA <0.001 0.000272 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 0.000303 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 0.000323 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 0.000266 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.00100 0.000209 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.00100 0.000174 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 0.000838 J <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 J4 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 J4 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 <0.00100 J4 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 0.000303 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 0.000323 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 0.000209 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 0.000266 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 0.000272 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 0.000174 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 J3 <0.0000500 <0.000200 NA <0.000200 NA <0.000100 <0.000200 0.000122 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 J3 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 0.0000207 J0.0000293 B J J3 <0.000250 <0.000500 NA <0.000500 NA <0.000250 <0.000500 <0.00500 <0.00500 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 0.0000104 J 0.0000109 J J3 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 0.000107 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 0.0000100 J 0.0000107 J J3 <0.000250 <0.000500 NA <0.000500 NA <0.000250 <0.000500 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 0.0000187 J 0.0000140 J <0.000250 <0.000500 NA <0.000500 NA <0.000250 <0.000500 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA ND ND ND ND ND NA ND NA ND ND NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 0.268 0.220 0.204 0.247 0.297 NA 0.298 NA 0.324 0.272 O1 0.299 O1 0.297 0.301 0.274 0.231 0.163 0.162 0.223 0.200 NA 0.173 0.234 0.146 0.242 0.18 0.094 0.0913 0.0906 0.102 0.1 NA 0.0999 NA 0.105 0.0883 O1 0.098 O1 0.0617 0.0704 0.268 0.308 0.310 0.310 0.397 0.312 NA 0.310 0.408 0.307 0.426 0.326 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 NA <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.010 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA 0.000591 J 0.000725 J <0.00200 <0.00200 <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 0.00149 J <0.0100 <0.0100 0.249 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 0.00353 J <0.0100 <0.0100 0.444 0.367 0.302 0.685 0.616 NA 0.619 NA 0.599 0.481 0.571 0.162 0.182 B 28 0.124 0.0470 J 0.0521 J 1.660 0.167 NA 0.0652 J 1.750 0.100 1.880 0.504 <0.00500 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 0.00773 0.051 <0.00500 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.0100 0.00703 J 0.00967 J 0.00513 J 0.0122 NA 0.00785 J NA 0.00736 J 0.0073 J 0.00695 J <0.0100 <0.0100 0.303 0.0281 0.0324 0.0329 0.0347 0.0311 NA 0.0324 0.0343 0.0297 0.033 0.0296 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0400 <0.0100 <0.0100 <0.0100 <0.0100 0.00821 J NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 0.015 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 NA <0.000200 <0.000200 <0.000200 J6 <0.000200 <0.000200 <0.0002 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND ND NA ND NA ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND MW-7 MW-7 DUP-2 (MW-7 Duplicate)MW-8 DUP-1 (MW-7 Duplicate) DUP-2 (MW-8 Duplicate) MW-7 MW-8 mg/L mg/L mg/L mg/L mg/L Page 2 of 20 2019 to Current Historical Groundwater Analytical Results Summary Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/09/2023 3/26/2024 <0.0500 <0.01 <0.00100 <0.0004 <0.001 NA <0.002 <0.00100 <0.001 <0.00100 <0.001 <0.00500 <0.001 <0.00500 <0.001 <0.001 <0.00500 <0.001 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.001 <0.00100 NA <0.00100 <0.001 <0.00100 <0.001 <0.0100 <0.001 <0.00500 <0.002 <0.0100 NA <0.00500 <0.001 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.001 <0.00250 <0.001 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.001 <0.00300 <0.001 <0.000400 0.0011 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 0.214 0.192 0.327 0.336 <0.00200 <0.005 <0.0100 0.001 0.289 0.986 0.00736 <0.0200 0.0295 0.044 <0.0100 <0.0200 <0.00500 <0.005 <0.000200 <0.0002 ND ND MW-8 mg/L mg/L mg/L mg/L mg/L Page 3 of 20 2019 to Current Historical Groundwater Analytical Results Summary Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/16/2019 09/16/2019 2/20/2020 6/23/2020 09/23/2020 11/4/2020 03/19/2021 10/5/2021 04/01/2022 10/24/2022 03/28/2023 09/09/2023 10/2/2019 02/18/2020 02/18/2020 6/25/2020 09/22/2020 11/3/2020 03/22/2021 10/5/2021 04/04/2022 10/26/2022 03/29/2023 09/12/2023 09/12/2023 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.500 <0.0500 J4 <0.0500 <0.0500 <0.0500 NR <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J3 J4 <0.0500 <0.0500 J4 <0.0500 <0.0500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0500 T8 <0.00500 <0.00500 <0.00500 NR <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 NA NA NA NA NA NA NA <0.000500 NA NA NA NA NA NA NR NA NA NA NA <0.000500 NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0500 C3 <0.00500 <0.00500 <0.00500 <0.00500 NR <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.0500 <0.00500 <0.00500 <0.00500 <0.00500 NR <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00125 <0.00250 <0.0250 <0.00250 <0.00250 <0.00250 NR <0.00250 NA <0.00250 <0.00250 <0.00125 <0.00250 <0.00250 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.0500 <0.00500 <0.00500 <0.00500 <0.00500 NR <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 0.00209 0.00205 NR 0.00209 NA 0.00208 0.00192 0.00273 0.00382 0.00413 0.00542 0.00371 0.00445 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 0.000305 J <0.00100 <0.0100 <0.00100 <0.00100 0.0323 0.0308 NR 0.0337 NA 0.0203 0.0208 0.0244 0.0341 0.0326 0.0501 0.0355 0.0357 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 0.000223 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.100 <0.0100 <0.0100 <0.0100 <0.0100 NR <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 J3 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0500 <0.00500 <0.00500 <0.00500 <0.00500 NR <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.100 <0.0100 <0.0100 <0.0100 <0.0100 NR <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0500 <0.00500 <0.00500 <0.00500 <0.00500 NR <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 C3 J3 <0.00500 <0.00500 <0.00500 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 J NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 0.000202 J <0.0100 <0.00100 <0.00100 0.00344 0.00552 NR 0.00433 NA 0.00211 0.00186 0.00272 0.00165 0.000798 J 0.00142 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.0250 <0.00250 <0.00250 <0.00250 <0.00250 NR <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.0300 <0.00300 <0.00300 <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 0.00122 0.00147 <0.00300 <0.00300 <0.00300 NA <0.000400 0.000296 J <0.000400 0.000433 <0.000400 <0.000424 0.0154 0.0115 0.0141 0.0182 0.0107 NA 0.0147 0.0000447 0.0155 0.0146 0.0178 0.0184 0.0119 B NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.0100 NA NA NA NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NR NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00300 NA NA NA NA <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA <0.00300 NA NA NA NA <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA <0.00300 NA NA NA NA <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA <0.00300 NA NA NA NA <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA <0.00300 NA NA NA NA <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA <0.0100 NA NA NA NA <0.0100 <0.0100 NR <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA <0.0100 NA NA NA NA <0.0100 <0.0100 NR <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA <0.00300 NA NA NA NA <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA <0.0100 NA NA NA NA <0.0100 <0.0100 NR <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA <0.0100 NA NA NA NA <0.0100 <0.0100 NR <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA <0.0100 NA NA NA NA <0.0100 <0.0100 NR <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.000192 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.000288 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 0.0000259 J <0.000192 <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 0.00000962 J <0.000480 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 0.000014 J <0.000480 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 0.000023 J <0.000192 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA ND ND ND ND ND NA ND NA NA NA NA NA NA 0.281 0.291 0.223 0.254 0.302 NA 0.284 0.310 0.324 0.320 0.247 0.332 0.0309 <0.0100 0.00911 0.0160 0.00866 J NA 0.0203 0.00725 J 0.0174 0.0203 <0.0100 0.0154 <0.0100 0.281 0.272 0.333 0.358 0.225 NA 0.254 0.219 0.24 0.273 0.221 0.257 0.427 0.172 0.171 0.203 0.185 NA 0.220 0.186 0.264 0.232 0.344 0.344 0.339 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.0007 <0.0007 <0.00200 NA 0.000541 J 0.000495 J 0.000612 J 0.000517 J <0.00200 <0.00200 <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 0.00149 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0400 <0.0400 <0.0100 NA <0.0100 <0.0100 <0.0100 0.00189 J <0.0100 <0.0100 <0.0100 <0.100 <0.100 0.174 0.737 0.114 NA 0.289 0.114 0.412 1.02 0.134 <0.0100 <0.100 <0.100 NR <0.100 <0.100 NA <0.100 <0.100 <0.100 0.172 <0.100 <0.100 <0.100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 0.00647 <0.00500 <0.00500 <0.00200 <0.00200 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 0.0224 0.0211 0.0229 0.0282 0.0132 NA 0.0245 0.00911 J 0.0105 0.00907 J 0.0101 0.0149 0.118 0.224 NR 0.267 0.276 NA 0.294 0.329 0.367 0.4 0.497 0.485 0.477 <0.0100 <0.0100 0.00897 J <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00200 <0.00200 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 J6 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.0000900 <0.0000900 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND ND mg/L mg/L mg/L mg/L MW-9 MW-10B MW-10B (UDEQ/DERR Split Sample) DUP-1 (MW-9 Duplicate)MW-9 mg/L MW-10B DUP (MW-10B Duplicate) Page 4 of 20 2019 to Current Historical Groundwater Analytical Results Summary Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 3/26/2024 09/19/2019 6/25/2020 09/22/2020 11/3/2020 03/22/2021 10/5/2021 04/04/2022 04/04/2022 10/25/2022 03/29/2023 09/19/2019 02/19/2020 6/23/2020 09/24/2020 11/4/2020 03/23/2021 10/8/2021 03/30/2022 10/26/2022 03/28/2023 09/09/2023 3/26/2024 <0.01 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.500 <0.0500 J3 J4 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 J3 NA <0.0500 <0.0250 <0.0500 J4 <0.0500 <0.0500 J4 <0.0500 <0.01 <0.0004 <0.00100 <0.00100 NA <0.00100 <0.00100 0.000122 J <0.0100 <0.00100 0.0000989 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0004 <0.001 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.0500 <0.00500 <0.250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.001 <0.002 NA NA NA NA NA <0.000500 NA NA NA NA NA NA NA NA NA NA <0.000500 NA NA NA NA <0.002 <0.001 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.001 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.001 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.0500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 <0.001 <0.00500 0.00131 J NA 0.00119 J 0.000291 J 0.000681 <0.0500 0.000429 J 0.00111 J <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 <0.001 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00125 <0.0250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00125 <0.00250 <0.00250 <0.00250 <0.001 <0.001 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.0500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 0.0016 <0.00500 0.0148 NA 0.0194 0.00624 0.0195 0.00435 J 0.00489 0.0169 0.0131 <0.00100 0.000635 J 0.000716 J 0.00121 NA 0.000925 J 0.00136 0.0173 0.00138 <0.00100 <0.00100 0.0006 J <0.001 <0.00100 0.00132 J NA 0.00160 <0.00100 0.00190 <0.0100 0.000527 J 0.00126 0.00106 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 0.006 0.222 1.100 NA 1.390 0.791 1.280 E 0.248 0.303 1.02 0.819 <0.00100 <0.00100 0.000307 J 0.000816 J NA 0.00113 0.00297 0.215 0.00329 <0.00100 0.00130 0.0007 J <0.001 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.000222 J <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.001 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 NA <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.001 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.001 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 J4 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.001 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.100 <0.0100 J3 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 J3 NA <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.001 <0.002 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.0500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.002 NA <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.001 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.0500 <0.00500 C3 J3 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 <0.001 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.001 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.001 <0.00100 <0.00100 J3 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.001 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.001 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 J4 <0.000500 0.000309 J <0.00100 <0.00100 <0.00100 <0.001 <0.001 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 0.0007 J <0.00100 <0.00100 NA 0.000892 J <0.00100 0.00126 <0.0100 0.000234 J 0.000723 J <0.00100 <0.00100 <0.00100 0.000208 J <0.00100 NA 0.000328 J 0.000727 0.00281 0.000725 J <0.00100 <0.00100 <0.001 <0.001 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.001 <0.00100 <0.00100 NA 0.000474 J 0.000347 J 0.000604 <0.0100 <0.00100 0.000595 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 0.000418 J <0.00100 <0.00100 <0.00100 <0.001 <0.001 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.0250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.001 <0.001 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 C3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.001 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.001 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.001 <0.00100 0.00128 J NA 0.00151 0.000756 J 0.00199 <0.0100 <0.00100 0.00119 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 0.000360 J <0.00100 <0.00100 <0.00100 <0.001 <0.001 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.0300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.001 0.0046 0.201 0.558 0.777 NA 0.183 0.492 0.146 0.151 0.455 0.428 E 0.00236 <0.00300 0.000666 <0.00300 NA 0.00210 0.00399 B 0.00142 B 0.00559 0.000822 0.00141 0.002 NA NA NA NA NA NA <0.0100 <0.00100 <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 NA NA NA NA NA NA NA <0.0100 <0.00100 <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.0100 <0.00100 <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.0100 <0.00100 <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00105 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00105 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00105 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 NA NA <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 NA NA <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 NA NA <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 NA NA <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 0.000404 J <0.00333 <0.00300 <0.00300 NA NA <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 NA NA <0.0100 <0.0100 NA <0.0100 <0.0100 0.000175 J <0.0100 <0.0100 <0.0105 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 NA NA <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 NA NA <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 NA NA <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 NA NA <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 NA NA <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 NA NA <0.0000500 <0.0000500 NA <0.0000500 NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA NA <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.000200 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00111 <0.00100 <0.00100 NA NA <0.0000500 <0.0000500 <0.0000500 NA 0.0000255 J NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA NA <0.000250 <0.000250 <0.000250 NA <0.000250 NA <0.000500 <0.00100 <0.00500 <0.00500 <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.00100 NA NA <0.0000500 <0.0000500 <0.0000500 NA 0.0000296 J NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA NA <0.000250 <0.000250 <0.000250 NA <0.000250 NA <0.000500 NA NA NA <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA NA <0.000250 <0.000250 <0.000250 NA <0.000250 NA <0.000500 NA NA NA <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA NA ND ND ND NA ND NA ND NA NA NA ND ND ND ND NA ND NA NA NA NA NA NA <0.0500 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.013 <0.0100 <0.0100 0.00551 J <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0500 0.2 0.250 0.0733 0.0704 NA 0.0412 0.0617 0.0949 0.0979 0.127 0.1 0.178 0.147 0.0707 0.0665 NA 0.0842 0.0714 0.0915 0.076 0.0936 0.0859 0.108 <0.005 <0.00200 <0.00200 0.000623 J NA 0.000603 J 0.000737 J <0.00200 <0.00200 0.0007 J <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA 0.000718 J 0.000613 J 0.00101 J 0.000779 J <0.00200 <0.00200 <0.005 0.0008 J <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 0.00327 J 0.00405 J 0.00149 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 0.0023 J <0.0100 <0.0100 <0.0100 <0.0100 0.0007 J 0.0303 <0.100 <0.100 <0.100 NA 0.0251 J <0.100 <0.100 <0.100 0.0221 J <0.100 <0.100 <0.100 <0.100 <0.100 NA <0.100 <0.100 0.0186 J <0.100 <0.100 <0.100 0.234 <0.0200 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 0.00337 J <0.00600 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.0060 <0.00600 <0.00600 <0.00600 <0.0200 0.019 0.259 0.372 0.305 NA 0.124 0.189 0.00114 J <0.0100 0.159 0.184 0.147 0.332 0.262 0.180 NA 0.155 0.158 0.094 0.153 0.0687 0.141 0.116 <0.0200 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.0123 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 0.0178 <0.0100 <0.0100 <0.0100 <0.0100 <0.0200 <0.005 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.005 <0.0002 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.0002 ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND ND mg/L mg/L mg/L mg/L MW-12S mg/L MW-11 MW-11 (P&A 6-2023) MW-119XDUP (MW-11 Duplicate) Page 5 of 20 2019 to Current Historical Groundwater Analytical Results Summary Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/19/2019 09/19/2019 02/19/2020 6/23/2020 09/24/2020 11/4/2020 03/23/2021 10/8/2021 3/30/2022 10/26/2022 03/28/2023 09/09/2023 3/26/2024 09/20/2019 02/18/2020 6/24/2020 6/24/2020 09/23/2020 11/3/2020 03/23/2021 10/5/2021 03/29/2022 10/27/2022 03/29/2023 09/09/2023 <0.0500 <0.01 <0.0500 <0.0500 <0.0500 J3 NA <0.0500 <0.0250 <0.0500 J4 <0.0500 <0.0500 J4 <0.0500 <0.01 0.0371 J <5.00 <5.00 NA**NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.0500 <0.0500 <0.0500 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0004 <0.00100 <0.100 <0.100 NA NA 0.000225 J 0.000174 J 0.000152 J 0.000130 J 0.000196 J <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.500 <0.500 NA NA <0.00500 <0.500 <0.00250 <0.00500 <0.00500 <0.00500 NA NA NA NA NA NA NA <0.000500 NA NA NA NA <0.002 NA NA NA NA NA NA NA 0.000115 J NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <0.002 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00250 0.000327 J <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.500 <0.500 NA NA <0.00500 <0.00500 <0.00250 0.00158 J 0.000199 J <0.00500 <0.00500 <0.00500 <0.002 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 0.00279 J <0.500 <0.500 NA NA 0.00768 0.00600 0.00592 0.0042 J 0.00439 J 0.00538 0.00603 <0.00250 <0.002 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00125 <0.00250 <0.00250 <0.00250 <0.001 <0.00250 <0.250 <0.250 NA NA <0.00250 <0.00250 <0.00125 <0.00250 <0.00250 <0.00250 <0.00500 <0.002 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.500 <0.500 NA NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 0.0125 <0.00100 <0.00100 <0.00100 <0.001 0.0531 0.229 0.0910 J NA NA 0.157 0.188 0.188 E 0.204 0.196 0.188 <0.500 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 0.00204 <0.100 <0.100 NA NA 0.0114 0.00945 0.0104 0.00865 0.00781 0.00855 0.0103 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 0.153 <0.00100 <0.00100 <0.00100 <0.001 3.070 9.160 3.340 NA NA 7.870 7.310 7.670 Q 6.190 5.99 6.82 8.46 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.100 <0.100 NA NA 0.000524 J 0.000538 J 0.000517 0.000512 J 0.000542 J <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 0.000124 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 J4 <0.000500 <0.00100 J4 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 J4 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.01 <0.0100 <0.0100 <0.0100 J3 NA <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.001 0.00548 J <1.00 <1.00 NA NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.002 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.002 <0.00500 <0.500 <0.500 NA NA 0.000545 J J4 0.000527 J 0.000561 J 0.00495 J 0.000597 J <0.00500 <0.00500 <0.0100 <0.005 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <1.00 <1.00 NA NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.002 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.500 J4 <0.500 NA NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 C3 <0.00500 <0.00500 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 0.000303 J <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 J4 <0.000500 <0.00100 J4 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.100 <0.100 NA NA 0.000283 J <0.00100 J4 <0.000500 0.000679 J <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 0.00184 <0.00100 <0.00100 <0.00100 <0.001 0.117 0.270 0.0878 J NA NA 0.219 0.194 0.173 Q, E 0.114 0.124 0.144 0.138 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 0.000635 J <0.100 <0.100 NA NA 0.00334 0.00275 0.00248 0.00246 0.00213 0.00247 0.00318 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 0.000277 J <0.00100 <0.00100 <0.00100 <0.001 0.0027 <0.100 0.0192 B, J, J4 NA NA 0.00897 0.00794 0.00777 0.00551 0.00577 0.00789 0.00817 <0.00250 <0.002 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.001 <0.00250 <0.250 <0.250 NA NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 0.000333 J <0.00100 <0.00100 <0.00100 <0.001 0.0223 <0.100 0.0969 J NA NA 0.0444 0.0990 0.0701 0.0913 0.122 0.0686 0.0699 <0.00300 <0.001 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.001 <0.00300 <0.300 <0.300 NA NA 0.000195 J <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 0.00189 0.00054 <0.00300 <0.00300 <0.00300 NA 0.00329 0.00334 B 0.298 B J <0.00400 <0.000444 <0.000420 0.0014 0.0972 0.582 0.980 0.523 0.887 NA 0.925 E 0.504 0.801 E 1.08 0.871 E 0.798 E NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00105 NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 <0.0100 <0.0147 <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 NA <0.0118 <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00105 NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00105 NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00105 NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00105 NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00105 NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00105 NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00105 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 <0.00300 <0.0147 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 NA 0.00288 J <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.0147 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 NA <0.00354 0.00129 J <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.0147 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 NA 0.000731 J <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.0147 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.000359 J <0.00300 <0.00300 <0.00315 NA <0.00354 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.0147 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 NA <0.00354 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 0.000359 J <0.00333 <0.00300 <0.00300 <0.0100 <0.0147 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 NA <0.0118 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 J4 <0.0100 <0.0100 <0.0100 <0.0147 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 NA <0.0118 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 J4 <0.0100 <0.0100 <0.00300 <0.0147 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.0100 <0.0147 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 NA <0.0118 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0100 <0.0147 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 NA <0.0118 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0100 <0.0147 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 NA 0.000839 J <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 NA <0.000162 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 NA <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 J4 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 NA <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 NA <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 NA <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 NA <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 NA <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 NA <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 NA <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0147 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00100 <0.00100 <0.00105 NA <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0147 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 NA <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 J4 <0.00100 <0.00100 <0.000250 <0.0147 0.0000271 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.00105 NA <0.000810 <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.00100 <0.0000500 <0.0147 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 NA <0.000162 0.00000992 J <0.0000500 0.0000202 J <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0147 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 NA <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.000250 <0.0147 0.0000156 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA <0.000810 <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA <0.000250 <0.0147 0.0000239 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA <0.000810 0.0000101 J <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA ND ND ND ND ND NA ND NA NA NA NA NA NA ND ND ND ND ND NA ND NA NA NA NA NA 0.131 0.119 0.164 0.200 0.189 NA 0.210 0.199 0.211 0.204 0.164 0.192 0.195 0.0268 <0.0100 <0.0100 0.00495 J 0.00508 J NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.206 0.196 0.192 0.170 0.121 NA 0.146 0.12 0.142 0.153 0.145 0.134 0.229 0.178 0.0378 0.0375 0.0386 0.0351 NA 0.0265 0.0314 0.0265 0.0278 0.023 0.0247 <0.00200 <0.0007 <0.00200 <0.00200 <0.00200 NA <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.005 <0.00200 <0.00200 0.000866 J 0.000600 J 0.000946 J NA 0.00132 J 0.000959 J 0.000964 J 0.000763 J <0.00200 <0.00200 <0.0100 <0.02 <0.0100 <0.0100 <0.0100 NA <0.0100 0.00245 J 0.00165 J 0.00332 J <0.0100 <0.0100 0.0094 0.00398 J 0.0022 J 0.0156 0.0164 <0.0100 NA 0.00142 J <0.0100 0.00436 J 0.00281 J <0.0100 <0.0100 <0.100 0.134 0.248 1.83 0.224 NA 0.529 0.120 0.246 0.781 0.129 <0.100 5.720 <0.100 0.0204 J <0.100 <0.100 <0.100 NA <0.100 <0.100 0.353 0.0358 J <0.100 <0.100 <0.00500 <0.002 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 0.00772 <0.0200 <0.00500 <0.00500 <0.0300 <0.0300 <0.0300 NA <0.0300 <0.00600 <0.00600 <0.00600 <0.00600 0.00751 0.0719 0.0636 0.0560 0.0524 0.0223 NA 0.0174 0.0222 0.0174 0.0131 0.0467 0.039 0.125 0.0671 2.180 0.358 0.351 2.300 NA 0.661 1.450 0.534 0.909 0.650 0.896 <0.0100 <0.002 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 0.00839 J <0.0100 <0.0100 <0.0200 0.0155 <0.0100 <0.0100 <0.0100 <0.0100 NA 0.018 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.005 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.00009 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.20200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND mg/L mg/L mg/L MW-12D mg/L mg/L MW-13SMW-13S MW-103xdup (MW-13S Duplicate) MW-12D MW-12D (UDEQ/DERR Split Sample) Page 6 of 20 2019 to Current Historical Groundwater Analytical Results Summary Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 3/26/2024 <0.01 <0.0004 <0.001 <0.002 <0.001 <0.001 <0.001 0.0046 <0.001 <0.001 0.14 0.0094 6.57 0.0008 J <0.001 NA <0.001 <0.001 <0.001 0.0007 J NA <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.0796 0.0028 0.0065 <0.001 <0.001 <0.001 <0.001 0.0791 <0.001 0.615 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.100 0.063 <0.010 0.0266 7.6 <0.0400 1.190 <0.0400 <0.010 <0.0002 ND mg/L mg/L mg/L mg/L mg/L Page 7 of 20 2019 to Current Historical Groundwater Analytical Results Summary Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/19/2019 0218/2020 6/24/2020 09/23/2020 11/3/2020 03/23/2021 10/5/2021 03/29/2022 10/27/2022 03/29/2023 09/09/2023 3/26/2024 09/20/2019 02/19/2020 6/24/2020 09/24/2020 11/5/2020 03/24/2021 10/12/2021 03/29/2022 10/27/2022 03/30/2023 09/12/2023 3/27/2024 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 0.125 J <0.0500 <0.0500 <0.0500 0.0562 0.0331 J <12.5 <12.5 <25.0 NA <1.25 <0.625 <1.25 J4 <5.00 J4 <0.500 <1.00 <0.01 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0004 0.000356 J <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.0004 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <1.25 <1.25 <2.50 J3 NA <0.125 C3 <0.0625 <0.125 <0.500 <0.0500 0.0009 J NA NA NA NA NA NA 0.000118 J NA NA NA NA <0.002 NA NA NA NA NA NA 0.0102 J <0.0250 NA NA 0.0016 J <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.001 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 0.00203 J <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <1.25 <1.25 <2.50 NA <0.125 <0.0625 <0.125 <0.500 <0.0500 <1.00 <0.001 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 0.00202 J <1.25 <1.25 <2.50 J4 NA <0.125 0.00412 J 0.00339 J <0.500 <0.0500 <0.100 0.0046 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00125 <0.00250 <0.00250 <0.00250 <0.001 <0.00250 <0.625 <0.625 <1.25 NA <0.0625 <0.0313 <0.0625 <0.250 <0.0250 0.0057 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <1.25 <1.25 <2.50 NA <0.125 C3 <0.0625 <0.125 <0.500 <0.0500 <0.100 <0.001 <0.00100 0.000902 J 0.000623 J NA 0.000919 J 0.00092 J 0.000896 0.0388 0.00103 0.00103 <0.00100 <0.001 3.92 3.85 4.08 5.75 NA 4.010 6.750 4.720 4.07 4.590 3.730 4.070 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 0.000737 J <0.00100 <0.00100 <0.00100 <0.001 0.0916 0.135 J 0.140 J <0.500 NA 0.111 0.147 0.133 0.156 C5 0.172 0.16 0.189 E 0.00291 0.0359 0.0269 NA 0.0193 0.0407 0.0267 0.277 0.0171 0.0206 0.0117 0.0061 25.200 40.400 68.300 76.400 NA 20.700 30.400 30.700 52.6 <0.0100 46.2 55.3 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 0.0079 <0.250 <0.250 <0.500 NA 0.00747 J 0.0138 0.0107 J 0.0312 J 0.0186 <0.0200 0.017 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 C3 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 NA <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 0.000656 J <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 0.0012 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J4 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.001 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 0.005 J <0.0100 <0.0100 <0.0100 <0.001 <0.0100 <2.50 <2.50 <5.00 NA <0.250 <0.125 <0.250 <1.00 <0.100 <0.200 <0.001 <0.00500 <0.00500 <0.00500 NA <0.00500 J4 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.002 0.0807 <1.25 <1.25 <2.50 NA 0.032 J 0.0184 J <0.125 <0.500 <0.0500 <0.100 <0.002 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 0.001 J <0.0100 <0.0100 <0.0100 NA <0.0100 <2.50 <2.50 <5.00 NA <0.250 <0.125 <0.250 <1.00 <0.100 <0.200 NA <0.00500 <0.00500 J4 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <1.25 <1.25 <2.50 NA <0.125 <0.0625 <0.125 <0.500 <0.0500 <0.100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 0.000192 J <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 C3 0.0799 <0.0250 <0.100 0.125 0.132 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 0.0375 <0.250 <0.250 <0.500 NA 0.0323 0.0166 0.0266 0.0456 J 0.0402 0.0541 0.0194 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J4 <0.000500 0.000605 J <0.00100 <0.00100 <0.00100 <0.001 0.0456 <0.250 0.0902 J <0.500 NA 0.0320 0.0400 0.0378 0.0535 J 0.0694 0.0411 0.0703 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 0.00322 <0.00100 <0.00100 <0.00100 <0.001 0.260 0.307 0.418 0.655 J4 NA 0.463 0.313 0.247 0.286 C5 0.296 0.268 0.272 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 0.000362 J <0.00100 <0.00100 <0.00100 <0.001 0.0541 <0.250 0.0949 J <0.500 NA 0.0622 0.0696 0.0603 0.0802 J 0.0909 0.0961 0.100 <0.00100 <0.00100 <0.00100 J4 NA 0.00037 J <0.00100 <0.000500 0.000701 J <0.00100 <0.00100 <0.00100 <0.001 0.0151 <0.250 0.204 B, J, J4 0.19 J NA 0.0389 0.0431 0.0515 0.0796 J 0.109 0.111 0.102 E <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.001 <0.00250 <0.625 <0.625 <1.25 NA <0.0625 <0.0625 <0.0625 <0.250 <0.0250 <0.0500 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.001 <0.00100 0.00322 0.00292 NA 0.00138 0.00217 0.000570 0.001970 0.000931 J 0.001560 <0.00100 0.0009 J-LOW-L, J 0.00726 <0.250 <0.250 <0.500 NA <0.0250 C3, J4 0.00954 J 0.0121 J <0.100 0.0134 <0.0200 0.0377 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.001 <0.00300 <0.750 <0.750 <1.50 NA <0.0750 <0.0375 <0.0250 <0.300 <0.0300 <0.0600 0.0035 0.00172 <0.00300 0.00237 J <0.00300 NA 0.00488 0.000952 0.00365 0.00320 BQ 0.00175 B 0.00148 B 0.00105 0.0056 0.0246 0.0392 0.0745 0.102 NA 0.0479 0.0479 0.071 0.122 0.0854 0.0131 0.0648 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 NA NA NA NA NA 0.000855 <0.00100 <0.00100 <0.00100 <0.500 <0.0500 <0.00100 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA 0.000474 J <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 NA <0.00300 0.00153 J <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 0.000290 J <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 0.00107 J <0.00333 <0.00300 <0.00300 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 J4 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 J4 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 J4 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 J4 <0.0100 <0.0100 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 0.000673 J <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA 0.000584 J <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 J4 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 J4 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.000100 <0.000100 NA <0.000100 NA <0.00100 <0.00111 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 J4 <0.00100 <0.00100 NA 0.0000152 J <0.0000500 <0.0000500 0.000019 J NA <0.0000500 NA <0.00100 <0.00111 J4 <0.00100 <0.00100 NA <0.000250 0.0000455 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.00100 NA 0.0000915 J <0.0000500 <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.500 <0.0500 <0.00100 NA <0.0000500 0.0000103 J <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA 0.0000171 J <0.000250 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 NA <0.000250 0.0000179 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA 0.0000294 J <0.0000500 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA <0.000250 0.0000286 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA 0.0000468 J <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA ND ND ND ND NA ND NA NA NA NA NA NA ND ND ND ND NA ND ND NA NA NA NA NA 0.146 0.128 0.160 0.167 NA 0.185 0.186 0.143 0.32 0.205 0.254 <0.100 <0.0100 0.0238 0.0175 0.0177 NA <0.0500 0.054 0.0246 0.0545 0.0264 0.0161 0.0455 J 0.147 0.118 0.128 0.134 NA 0.115 0.132 0.219 0.159 0.138 0.140 2.34 0.989 0.885 0.847 0.834 NA 0.0253 0.0241 0.0200 0.0224 0.0189 0.0177 0.022 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.010 <0.00200 <0.00200 <0.00200 <0.00200 NA 0.00277 J 0.00141 J 0.000992 J <0.00200 <0.00200 <0.00200 <0.005 <0.0100 0.00232 J <0.0100 <0.0100 NA 0.00267 J 0.00160 J <0.0100 0.0015 J <0.0100 <0.0100 0.0052 J <0.0100 <0.0100 <0.0100 <0.0100 NA 0.0101 J 0.00221 J <0.0100 0.003 J <0.0100 <0.0100 0.0015 J <0.100 0.189 0.391 0.466 NA 0.121 0.422 0.0294 J 0.0637 J <0.100 <0.100 1.88 <0.100 0.0309 J <0.100 <0.100 NA <0.500 11.700 0.0639 J 4.810 <0.100 <0.100 8.930 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.0400 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.0300 <0.0300 <0.0060 <0.00600 0.00765 0.006 <0.0200 0.0312 0.0544 0.0532 0.0551 NA 0.0456 0.0416 0.00579 J 0.00559 J <0.0100 <0.0100 0.064 1.390 2.380 2.520 2.570 NA 20.600 12.200 8.570 6.570 6.190 5.80 6.320 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 0.00801 <0.0100 <0.0100 <0.0100 <0.0100 <0.0400 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0500 0.0322 <0.0100 <0.0100 <0.0100 <0.0100 <0.0200 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 0.002 J <0.00500 <0.00500 <0.00500 <0.00500 NA <0.0250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.005 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 0.000125 J <0.000200 <0.000200 <0.000200 <0.0002 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.0002 ND ND ND NA ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND ND mg/L mg/L MW-14S mg/L MW-13D mg/L mg/L Page 8 of 20 2019 to Current Historical Groundwater Analytical Results Summary Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/20/2019 02/19/2020 6/24/2020 09/24/2020 11/5/2020 03/24/2021 10/12/2021 03/29/2022 10/27/2022 03/30/2023 9/12/2023 3/27/2024 10/2/2019 02/20/2020 6/22/2020 09/23/2020 11/4/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 10/25/2022 03/28/2023 <1.25 <0.500 <0.500 <0.0500 J3 NA <0.0500 <0.0250 <0.0500 J4 <0.0500 <0.0500 <0.0500 <0.01 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.0500 C3 <0.0500 C3 <0.0500 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0004 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.125 <0.0500 <0.0500 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 NA NA NA NA NA NA 0.000735 NA NA NA NA <0.002 NA NA NA NA NA NA <0.000500 NA NA NA NA <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 J4 <0.00100 <0.125 <0.0500 <0.0500 0.0032 J NA 0.107 0.144 0.093 0.186 C5 0.168 0.221 0.239 <0.00500 0.000922 J <0.00500 NA 0.000604 J 0.00141 J 0.00115 J 0.000684 J 0.00153 J 0.00148 J <0.00500 <0.125 <0.0500 <0.0500 <0.00500 NA <0.00500 <0.000500 <0.0500 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.0625 <0.0250 <0.0250 <0.00250 NA <0.00250 <0.00125 J3 <0.00250 <0.00250 <0.00250 <0.00250 <0.001 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00125 <0.00250 <0.00250 C3 J3 <0.00250 C3 J3 <0.00250 <0.125 <0.0500 <0.0500 <0.00500 NA <0.00500 C3 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 0.58 0.615 0.444 0.484 NA 0.175 0.173 0.230 0.19 0.218 0.132 0.0982 0.00101 0.0152 0.0170 NA 0.014 0.0150 0.0137 0.0178 0.0177 0.0174 0.0189 <0.0250 <0.0100 <0.0100 <0.0200 NA 0.000922 J 0.000876 0.00315 0.000867 J 0.00125 <0.00100 0.0009 J <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 0.180 0.108 0.0762 0.0729 NA 0.0352 0.0322 1.23 0.0282 0.0781 0.0141 0.0099 0.00322 0.0643 0.0564 NA 0.0393 0.0483 0.0498 0.0572 0.0594 0.0577 0.0503 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 0.00034 J <0.00100 <0.00100 <0.00100 <0.001 <0.00100 0.000799 J 0.000922 J NA 0.000579 J 0.000762 J 0.000833 0.00124 0.00109 0.00112 0.00126 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 C3 <0.00100 C3 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 0.000187 J <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.100 <0.100 <0.0100 J3 NA <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.001 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 C3 <0.0100 C3 <0.0100 <0.125 <0.0500 <0.0500 <0.00500 NA <0.00500 <0.00250 <0.0500 0.000453 J <0.00500 <0.00500 0.0007 J-LOW-L, J <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.250 <0.100 <0.100 <0.0100 NA <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 C3 <0.0100 C3 <0.0100 <0.125 <0.0500 <0.0500 <0.00500 NA <0.00500 0.00157 J <0.00500 <0.00500 C3 <0.00500 <0.00500 <0.001 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 J4 <0.00500 J4 <0.00500 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 0.00043 J NA <0.00100 <0.000500 J3 0.000433 J <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 0.000459 J 0.00134 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 J4 <0.00100 0.779 0.382 0.198 0.130 J4 NA 0.000335 J <0.000500 0.0097 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 0.0160 0.0119 NA 0.00535 0.00546 0.00501 0.00575 0.000535 J 0.000484 J <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 0.0018 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 0.000205 J NA <0.00100 <0.00100 0.000163 J <0.00100 <0.00100 J4 <0.00100 J4 <0.00100 <0.0250 <0.0100 <0.0100 J4 0.000452 J NA 0.000534 J 0.000315 J 0.00194 0.000249 J <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 0.000209 J 0.000263 J <0.00100 0.000198 J <0.00100 <0.0625 <0.0250 <0.0250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 0.0004 J <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 0.000919 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 0.000372 J <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 0.000285 J <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 0.00330 NA 0.00539 0.00482 J3 0.00251 0.00598 0.00289 0.00258 0.0038 J-LOW-L <0.00100 <0.00100 <0.00100 NA 0.000398 J <0.00100 0.000242 J <0.00100 <0.00100 <0.00100 <0.00100 <0.0750 <0.0300 <0.0300 <0.00300 NA <0.00300 0.0018 <0.00300 <0.00300 <0.00300 <0.00300 <0.001 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 0.00116 <0.00300 <0.00300 <0.00300 NA 0.0146 0.000744 0.000755 B 0.0005 B <0.000400 <0.000400 0.0007 0.0216 0.133 0.220 0.286 V NA 0.205 E 0.161 E 0.208 0.18 E 0.185 0.187 NA NA NA NA NA NA <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 <0.0100 <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 NA NA NA NA 0.000659 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 0.00154 J <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 0.000303 J <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 0.000715 J <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 0.000111 J <0.0100 J4 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 0.000156 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 J4 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 0.00261 J <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0100 0.000627 J <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 0.000106 J <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 J4 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 0.000137 J <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00111 <0.00100 <0.00100 0.0000255 J 0.0000115 J <0.0000500 0.000018 J NA <0.0000500 NA <0.00100 0.000719 J J4 <0.00100 <0.00100 NA <0.0000500 0.0000119 J <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 0.000101 J 0.0000664 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.00100 NA <0.000250 0.0000397 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.00500 0.0000106 J 0.000012 J <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 0.00226 <0.00100 <0.00100 NA <0.0000500 0.0000165 J <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 0.000283 J <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 0.0000263 J 0.0000283 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA <0.000250 0.0000243 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA 0.0000476 J 0.0000392 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA <0.000250 0.0000405 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA ND ND ND ND NA ND NA NA NA NA NA ND ND ND ND NA ND NA NA NA NA NA 0.265 0.204 0.218 0.255 NA 0.284 0.324 0.349 0.36 0.36 0.362 0.410 0.188 0.0241 0.0540 0.0303 NA 0.0192 0.0589 0.0127 0.0547 0.0574 0.0174 0.168 0.151 0.129 0.113 NA 0.121 0.154 0.157 0.133 0.102 0.102 0.149 0.201 0.208 0.21 0.19 NA 0.209 0.222 0.200 0.216 0.216 0.204 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.005 <0.00200 <0.00200 <0.00200 <0.00200 NA 0.000642 J 0.000773 J 0.000567 J <0.00200 <0.00200 <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 0.00142 J <0.0100 <0.0100 0.0023 J <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.244 0.372 0.217 0.0635 J NA 0.335 0.655 0.757 0.827 0.145 0.200 B 1.22 <0.100 0.0205 J 1.03 <0.100 NA <0.100 1.300 <0.100 1.160 1.130 <0.100 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.0200 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 0.00409 J 0.00508 J <0.00600 0.124 0.165 0.144 0.137 NA 0.149 0.162 0.126 0.122 0.108 0.0877 0.11 0.117 0.348 0.370 0.307 NA 0.327 0.302 0.303 0.284 0.281 0.253 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0200 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.005 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.0002 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND NA ND ND ND NA NA ND ND ND ND NA ND ND ND ND ND ND MW-15 DUP-01 (MW-15 Duplicate) MW-14D MW-15 mg/L mg/L mg/L mg/L mg/L Page 9 of 20 2019 to Current Historical Groundwater Analytical Results Summary Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 10/2/2019 02/18/2020 6/24/2020 09/21/2020 11/4/2020 09/21/2020 11/4/2020 03/22/2021 10/9/2021 10/9/2021 04/04/2022 10/25/2022 03/29/2023 03/29/2023 09/12/2023 3/26/2024 10/2/2019 02/20/2020 6/23/2020 09/23/2020 11/4/2020 03/19/2021 10/5/2021 04/01/2022 10/25/2022 <0.0500 <0.0500 <0.0500 NA <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0250 <0.0500 J4 J5 <0.0500 C3 <0.0500 <0.0500 <0.0500 <0.01 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.0500 C3 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0004 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 NA <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00250 <0.00500 J5 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 NA NA NA NA NA NA NA NA <0.000500 <0.000500 NA NA NA NA NA <0.002 NA NA NA NA NA NA <0.000500 NA NA <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00500 <0.00500 <0.00500 NA <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 0.0008 J <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 0.000159 J NA <0.00500 NA <0.00500 <0.00500 <0.000500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00250 <0.00250 <0.00250 NA <0.00250 NA <0.00250 <0.00250 <0.00125 <0.00125 <0.00250 <0.00250 C3 J3 <0.00250 <0.00250 <0.001 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00125 <0.00250 <0.00250 C3 J3 <0.00500 <0.00500 <0.00500 NA <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.00500 <0.00100 0.00663 0.0078 NA 0.00842 NA 0.00778 0.00818 0.00693 Q 0.00713 Q 0.0111 0.0105 0.0167 0.0157 0.0128 0.0109 <0.00100 0.000293 J <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.000608 J 0.000739 J NA <0.00100 NA <0.00100 <0.00100 0.00102 0.000950 0.001130 0.0009 J 0.001720 0.001770 0.00131 0.0016 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 0.0109 0.172 0.248 NA 0.222 NA 0.181 0.204 0.173 0.160 0.168 0.240 0.230 0.211 0.203 0.217 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 0.00178 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.00500 <0.00500 <0.0100 <0.0100 C3 <0.0100 <0.0100 <0.0100 <0.001 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 C3 <0.00500 <0.00500 <0.00500 NA <0.00500 J4 NA <0.00500 <0.00500 <0.00250 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.002 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.00500 <0.00500 <0.0100 <0.0100 C3 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 C3 <0.00500 <0.00500 <0.00500 NA <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00250 <0.00500 C3 <0.00500 J4 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 J4 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 0.00641 0.00657 NA 0.00506 NA 0.00339 0.00366 0.00356 0.00277 0.0026 0.000423 J <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 0.000558 J NA 0.000405 J NA 0.000326 J <0.00100 0.000310 J 0.000273 J 0.000176 J 0.000224 J J4 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 0.000203 B, J, J4 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00250 <0.00250 <0.00250 NA <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.001 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.000721 J 0.00104 NA 0.00126 NA 0.000965 J 0.000807 J 0.00124 0.00113 0.00143 0.00193 0.00209 0.00212 0.00259 0.0019 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.001 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 0.00733 0.137 0.232 0.188 NA 0.19 NA 0.195 0.123 E 0.127 E 0.210 0.195 0.322 0.318 0.135 0.187 0.000438 0.00251 J 0.00333 <0.00300 NA 0.00282 <0.000400 0.00041 0.000383 J NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.0100 <0.00100 <0.0100 <0.0100 NA NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.0100 <0.00100 NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.0100 <0.00100 NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.0100 <0.00100 NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.001 <0.00500 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 0.00195 J <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 0.000308 J <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 0.000525 J <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 J3 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.000100 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.000250 0.0000207 J <0.000250 <0.000250 NA <0.000250 NA <0.000250 NA NA <0.00100 <0.00500 <0.00500 <0.00500 <0.00100 NA <0.000250 0.0000312 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.0000500 0.00000983 J <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 0.00000867 J <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.000250 0.0000117 J <0.000250 <0.000250 NA <0.000250 NA <0.000250 NA NA NA NA NA NA NA NA <0.000250 0.0000123 J <0.000250 <0.000250 NA <0.000250 NA NA NA <0.000250 0.0000194 J <0.000250 <0.000250 NA <0.000250 NA <0.000250 NA NA NA NA NA NA NA NA <0.000250 0.0000226 J <0.000250 <0.000250 NA <0.000250 NA NA NA ND ND ND ND NA ND NA ND NA NA NA NA NA NA NA NA ND ND ND ND NA ND NA NA NA 0.202 0.0464 0.0612 0.0771 NA 0.0959 NA 0.0787 0.104 0.106 0.0927 0.125 0.0707 0.0776 0.0905 0.0646 0.0228 <0.0100 0.00657 J 0.0156 NA 0.00911 J 0.0291 0.0224 B 0.0374 0.219 0.187 0.191 0.173 NA 0.171 NA 0.178 0.177 0.174 0.174 0.178 0.18 0.183 0.171 0.186 0.205 0.115 0.0886 0.101 NA 0.124 0.138 0.149 0.155 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 NA <0.00200 <0.00200 <0.00200 0.000550 J <0.00200 <0.00200 <0.00200 <0.00200 <0.005 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 <0.00200 0.000499 J <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 0.00203 J 0.00183 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.0015 J <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.100 0.0741 J 0.0742 J 0.0929 J NA 0.133 NA <0.100 NA NA 0.205 B 0.538 <0.100 <0.100 <0.100 0.59 <0.100 0.0262 J <0.100 <0.100 NA <0.100 <0.100 0.0351 J 0.681 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.0200 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 0.00478 0.0565 0.163 0.147 0.146 NA 0.136 NA 0.0901 NA NA 0.151 0.127 0.159 0.155 0.152 0.186 0.360 0.267 0.343 0.160 NA 0.328 0.136 0.180 0.13 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.010 <0.0100 <0.0100 <0.0100 <0.0100 <0.0200 <0.0100 <0.0100 <0.0100 <0.0100 NA 0.0175 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.005 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.0100 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.0002 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND NA ND NA ND ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND mg/L mg/L mg/L MW-17 mg/L mg/L mg/L mg/L MW-16 mg/L MW-160DUP (MW-16 Duplicate) MW-16 DUP MW-16 (MW-16 Duplicate) mg/L mg/L DUP-1 (MW-16 Duplicate)MW-16 Page 10 of 20 2019 to Current Historical Groundwater Analytical Results Summary Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 03/28/2023 <0.0500 J4 <0.00100 <0.00500 NA <0.00100 <0.00100 <0.00500 <0.00500 <0.00250 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.00500 <0.0100 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00250 <0.00100 <0.00100 <0.00100 <0.00100 <0.00300 0.00308 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.0100 <0.0100 <0.00300 <0.0100 <0.0100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00100 <0.00100 NA NA NA 0.0132 0.135 <0.00200 <0.0100 <0.100 <0.00600 0.255 <0.0100 <0.00500 <0.000200 ND mg/L mg/L mg/L MW-17 mg/L mg/L Page 11 of 20 2019 to Current Historical Groundwater Analytical Results Summary Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/09/2023 3/26/2024 10/2/2019 02/20/2020 6/23/2020 09/23/2020 11/4/2020 03/19/2021 10/5/2021 04/01/2022 10/25/2022 03/28/2023 09/09/2023 3/26/2024 10/11/2021 04/04/2022 10/25/2022 03/29/2023 09/12/2023 10/11/2021 04/04/2022 10/26/2022 03/29/2023 9/12/2023 3/26/2024 <0.0500 <0.01 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.0500 C3 <0.0500 J4 <0.0500 <0.01 <0.0250 <0.0500 J3 J4 <0.0500 <0.0500 <0.0500 0.013 J <0.0500 J3 J4 <0.0500 <0.0500 <0.0500 <0.01 <0.00100 <0.0004 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0004 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0004 <0.001 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.001 <0.000500 <0.00500 <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 NA <0.002 NA NA NA NA NA NA <0.000500 NA NA NA NA <0.002 <0.000500 NA NA NA NA <0.000500 NA NA NA NA <0.002 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.001 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00500 <0.001 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.001 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 0.000205 J <0.00500 <0.00500 <0.00500 <0.00500 <0.001 <0.001 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00125 <0.00250 <0.00250 C3 J3 <0.00250 <0.001 <0.00125 <0.00250 <0.00250 <0.00250 <0.00125 <0.00250 <0.00250 <0.00250 <0.00250 <0.001 <0.00500 <0.001 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.001 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.000500 0.000512 J 0.000407 J <0.00100 <0.00100 0.000916 0.00521 0.00656 0.00705 0.00805 0.0044 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 0.000212 J <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 0.000447 J <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.000500 0.00103 0.00103 0.00123 0.0012 0.00250 0.03680 0.04490 0.05400 0.0553 0.023 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 0.000136 J <0.00100 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 NA <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 C3 <0.00100 <0.00100 NA <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.0100 <0.001 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 C3 <0.0100 <0.0100 <0.001 <0.00500 <0.0100 J3 <0.0100 <0.0100 <0.0100 0.00166 J <0.0100 J3 <0.0100 <0.0100 <0.0100 <0.001 <0.00500 <0.002 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.002 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.002 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 C3 <0.0100 <0.0100 NA <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 0.000486 J <0.0100 <0.0100 <0.0100 <0.0100 NA <0.00500 <0.001 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 J4 <0.00500 <0.00500 <0.001 <0.00250 J4 <0.00500 C3 J3 <0.00500 <0.00500 <0.00500 <0.00250 J4 <0.00500 C3 J3 <0.00500 <0.00500 <0.00500 <0.001 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.001 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 0.000554 J <0.00100 <0.00100 <0.00100 <0.001 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 0.000162 J 0.00100 J 0.000674 J <0.00100 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.001 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00250 <0.001 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.001 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.001 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.001 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 0.000291 J 0.000448 J <0.00100 <0.00100 <0.001 <0.00300 <0.001 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.001 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.001 0.00257 0.0035 0.00236 <0.00300 <0.00300 <0.00300 NA 0.00163 0.00121 0.00374 B 0.0014 0.00185 0.00248 0.0022 NA 0.00135 0.000583 0.00159 B 0.00299 B 0.0216 BQ NA 0.113 0.106 0.149 E 0.176 0.0829 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 NA NA NA <0.00100 <0.00100 NA <0.00100 NA <0.0100 NA <0.0100 <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 NA <0.0100 NA <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 NA NA NA <0.00100 <0.00100 NA <0.00100 NA <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 NA NA NA <0.00100 <0.00100 NA <0.00100 NA <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 NA NA NA <0.00100 <0.00100 NA <0.00100 NA <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.001 <0.001 NA NA NA <0.001 <0.001 NA <0.00100 NA <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 0.0000636 J <0.00100 <0.00100 <0.00100 NA <0.001 <0.001 NA NA NA <0.001 <0.001 NA <0.00100 NA <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 0.0000836 J <0.00100 <0.00100 <0.00100 NA <0.001 <0.001 NA NA NA <0.001 <0.001 NA <0.00100 NA <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.00100 NA NA NA <0.00100 <0.00100 NA <0.00500 NA <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 NA <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 NA <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 NA <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 NA <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 NA <0.00300 NA <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 NA <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 NA <0.0100 NA <0.00300 NA <0.00300 0.00311 0.00311 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 NA <0.00300 NA <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 NA <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 NA <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 NA <0.0100 NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA 0.0000636 J <0.00100 <0.00100 <0.00100 NA NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA 0.0000836 J <0.00100 <0.00100 <0.00100 NA NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA 0.000104 J <0.00100 <0.00100 <0.00100 NA NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.000250 0.0000267 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.00100 NA NA <0.00100 NA NA NA NA <0.00100 NA <0.00500 NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA 0.000111 J <0.00100 <0.00100 <0.00100 NA NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA NA NA <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 0.0000144 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA ND ND ND ND NA ND NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0500 <0.0100 <0.0100 0.0100 0.00798 J NA <0.0100 <0.0100 0.0129 B <0.0100 <0.0100 <0.0100 <0.0500 0.0801 0.057 0.065 0.0425 0.0394 0.00561 J 0.122 0.156 0.114 0.0914 0.174 0.102 0.107 0.183 0.196 0.172 0.169 NA 0.157 0.184 0.162 0.15 0.148 0.146 0.159 0.208 0.253 0.253 0.223 0.208 0.104 0.322 0.312 0.24 0.253 0.286 <0.00200 <0.005 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.005 <0.00200 0.000567 J <0.00200 <0.00200 <0.00200 <0.00200 0.000513 J <0.00200 <0.00200 <0.00200 <0.005 <0.0100 0.0010 J <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0050 <0.0100 <0.0100 0.00195 J <0.0100 <0.0100 <0.0100 <0.0100 0.004 J <0.0100 <0.0100 <0.0050 <0.100 0.098 <0.100 <0.100 0.0623 J <0.100 NA <0.100 <0.100 <0.100 0.344 <0.100 <0.100 0.112 0.0867 J 0.0741 B J 0.47 <0.100 <0.100 <0.100 0.0198 B J 0.802 <0.100 <0.100 1.36 0.00601 <0.0200 <0.00500 <0.00500 <0.00500 0.00365 J NA <0.00600 <0.00600 <0.00600 0.00427 J <0.00600 <0.00600 <0.0200 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.0300 <0.0200 0.211 0.252 0.0808 0.153 0.359 0.317 NA 0.270 0.260 0.27 0.151 0.118 0.168 0.042 0.0279 0.229 0.196 0.178 <0.0100 0.0193 0.183 0.137 0.139 0.132 0.118 <0.0100 0.0118 J <0.0100 <0.0100 <0.0100 <0.0100 NA 0.0127 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.0124 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0200 <0.00500 <0.005 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 0.0009 J <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 0.0007 J <0.000200 <0.0002 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.0002 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.0002 ND ND ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND mg/L mg/L mg/L MW-18MW-17 MW-20 mg/L mg/L MW-19 Page 12 of 20 2019 to Current Historical Groundwater Analytical Results Summary Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 10/11/2021 04/04/2022 10/26/2022 <0.0250 <0.0500 J3 J4 <0.0500 <0.000500 <0.00100 <0.00100 <0.000500 <0.00500 <0.00500 <0.000500 NA NA <0.000500 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00250 <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00125 <0.00250 <0.00250 <0.00250 <0.00500 <0.00500 <0.000500 0.000713 J 0.00081 J <0.000500 0.000165 J <0.00100 0.00104 0.0401 0.0504 <0.000500 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00500 <0.0100 J3 <0.0100 <0.00250 <0.00500 <0.00500 <0.00500 <0.0100 <0.0100 <0.00250 J4 <0.00500 C3 J3 <0.00500 <0.000500 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00250 <0.00250 <0.00250 <0.000500 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00150 <0.00300 <0.00300 NA 0.0128 0.0133 <0.00100 <0.00100 NA <0.0100 <0.0100 NA <0.00100 <0.00100 NA <0.00100 <0.00100 NA <0.00100 <0.00100 NA <0.001 <0.001 NA <0.001 <0.001 NA <0.001 <0.001 NA <0.00100 <0.00100 NA <0.00300 <0.00300 NA <0.00300 <0.00300 NA <0.00300 <0.00300 NA <0.00300 <0.00300 NA <0.00300 <0.00300 NA <0.0100 <0.0100 NA <0.0100 <0.0100 NA <0.00300 <0.00300 NA <0.0100 <0.0100 NA <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA <0.00100 NA NA <0.00100 NA NA <0.00100 NA NA <0.00100 NA NA <0.00100 NA NA <0.00100 NA NA <0.00100 NA NA <0.00100 NA NA <0.00100 NA NA <0.00100 NA NA <0.00100 NA NA <0.00100 NA NA <0.00100 NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA 0.360 0.244 0.323 0.352 0.45 0.446 <0.00200 0.000640 J <0.00200 <0.0100 <0.0100 0.00148 J 0.133 <0.100 1.02 <0.00600 <0.00600 <0.00600 0.112 0.267 0.21 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 ND ND ND mg/L mg/L mg/L MW-21 mg/L mg/L Page 13 of 20 2019 to Current Historical Groundwater Analytical Results Summary Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 10/26/2022 03/29/2023 10/11/2021 04/04/2022 10/26/2022 03/29/2023 09/18/2019 2/28/2020 6/25/2020 09/21/2020 11/3/2020 03/22/2021 10/11/2021 04/05/2022 10/24/2022 03/29/2023 09/18/2019 02/18/2020 6/25/2020 09/22/2020 11/3/2020 03/22/2021 03/22/2021 <0.0500 <0.0500 <0.0250 <0.0500 J3 J4 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J3 J4 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0500 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 NA #N/A 0.000238 J NA NA NA NA NA NA NA NA NA <0.000500 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 J5 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00250 <0.00250 <0.00125 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00125 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00500 C3 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 C3 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 0.000715 J <0.00100 0.000250 J 0.000112 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 0.044 0.0346 0.00224 0.00137 0.000399 J <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.000213 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 <0.00500 <0.0100 J3 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 J3 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00250 J4 <0.00500 C3 J3 <0.00500 <0.00500 <0.00500 0.00402 J <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 C3 J3 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00500 C3 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.00100 C3 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J5 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 C3 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 0.0134 0.00508 NA 0.00351 0.00687 B 0.00425 B Q 0.00874 <0.000400 <0.00300 <0.00300 <0.00300 NA 0.000168 B, J NA 0.000368 J 0.000567 <0.000400 <0.000400 <0.00300 <0.00300 <0.00300 NA 0.000296 B J 0.000209 B, J NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA 0.000154 J <0.00100 NA NA NA NA NA NA NA NA <0.001 NA NA NA NA NA NA NA NA NA NA NA NA 0.0000805 J <0.00100 NA NA NA NA NA NA NA NA <0.001 NA NA NA NA NA NA NA NA NA NA NA NA 0.000120 J <0.00100 NA NA NA NA NA NA NA NA <0.001 NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 0.324 0.054 0.0879 0.122 0.214 0.0488 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 0.0064 J <0.0100 0.0511 0.0150 0.0473 0.0358 NA 0.0172 0.0157 0.447 0.122 0.364 0.116 0.118 0.0739 0.169 0.159 0.169 0.168 NA 0.142 0.158 0.159 0.16 0.158 0.222 0.190 0.252 0.225 NA 0.211 0.211 <0.00200 <0.00200 <0.00200 0.0013 J <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 0.000506 J <0.00200 0.000578 J <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 0.00239 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.00181 J <0.0100 <0.0100 NA <0.0100 <0.0100 1.02 <0.100 0.0409 J 0.027 B J 3.67 <0.100 <0.100 <0.100 <0.100 <0.100 NA <0.100 <0.100 0.0424 B J 0.0586 J <0.100 <0.100 0.0223 J <0.100 <0.100 NA <0.100 <0.100 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00500 0.00310 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 0.213 0.0308 0.136 0.24 0.234 0.0639 0.405 0.0643 0.298 0.371 NA <0.0100 0.387 0.0108 0.344 <0.0100 0.497 0.423 0.453 0.451 NA 0.401 0.403 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 0.0156 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 J6 <0.000200 J6 <0.000200 NA <0.000200 <0.000200 ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND ND ND ND NA ND ND mg/L mg/L mg/L mg/L mg/L mg/L mg/L GMW-2 DUP-1 (GMW-2 Duplicate) MW-22 GMW-1DUP-2 (MW-21 Duplicate)MW-21 mg/L mg/L mg/L Page 14 of 20 2019 to Current Historical Groundwater Analytical Results Summary Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 10/5/2021 04/05/2022 10/26/2022 03/29/2023 09/17/2019 02/19/2020 6/23/2020 09/22/2020 11/4/2020 03/22/2021 10/9/2021 04/01/2022 10/24/2022 03/29/2023 09/17/2019 09/17/2019 02/20/2020 6/22/2020 09/23/2020 11/4/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 <0.0250 <0.0500 J3 J4 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.0500 C3 <0.0500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 J3 <0.00250 <0.00500 <0.00500 C3 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.000500 NA NA NA NA NA NA NA NA NA <0.000500 NA NA NA NA NA NA NA NA NA NA <0.000500 NA NA NA <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 J3 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 0.00122 J <0.00500 NA <0.00500 0.000399 J 0.000640 J 0.000552 J 0.000943 J <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 J3 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00125 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 J3 <0.00125 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00125 <0.00250 <0.00250 C3 J3 <0.00250 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 J3 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.00500 <0.00500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.000198 J NA 0.000196 J 0.000216 J, J3 0.000222 J, Q 0.000243 J 0.000188 J <0.00100 0.00754 0.00579 0.00501 0.00540 NA 0.00441 0.00439 0.00380 0.00540 0.00548 0.00545 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.000346 J <0.00100 <0.00100 <0.00100 0.00265 0.00362 0.00249 NA 0.00238 0.00217 0.00224 Q 0.00241 0.00205 0.00233 0.126 0.105 0.122 0.0916 NA 0.0807 0.0854 0.0950 0.1390 0.1810 0.0808 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.000137 J NA <0.00100 0.000130 J <0.000500 0.000186 J 0.000308 J <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00500 <0.0100 J3 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 J3 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.00250 <0.00500 C3 J3 <0.00500 <0.00500 <0.00500 0.00983 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.000738 J 0.000411 J NA 0.000423 J 0.000492 J 0.000601 0.000710 J 0.000771 J <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 0.0356 0.0276 0.0350 0.0288 NA 0.0215 0.0237 0.0221 0.0297 0.0305 0.0254 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 0.000223 J J4 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.000329 J NA <0.00100 0.000254 J 0.000333 J 0.000302 J 0.000356 J <0.00100 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 J3 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 0.000464 0.000764 0.00174 B 0.000706 B 0.00932 0.00325 0.00519 0.00695 NA 0.00586 0.0105 0.00721 0.00565 0.0104 0.0628 0.0646 0.0426 0.0527 0.0478 NA 0.0537 0.0381 0.0576 0.0632 0.0517 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00105 <0.00100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00105 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00105 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00105 <0.00100 <0.001 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00105 <0.00100 <0.001 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00105 <0.00100 <0.001 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00105 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 <0.000250 0.0000107 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA ND ND ND ND ND NA ND NA NA NA NA 0.0336 0.0142 0.107 0.015 0.0979 0.0937 0.127 0.103 NA 0.0844 0.135 0.0971 B 0.18 0.0675 <0.0100 <0.0100 <0.0100 0.00605 J 0.00581 J NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.226 0.209 0.242 0.223 0.204 0.189 0.224 0.198 NA 0.17 O1 0.236 0.160 0.232 0.169 0.132 0.134 0.136 0.125 0.138 NA 0.116 0.127 0.137 0.117 0.135 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA 0.000501 J 0.000856 J <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA 0.000591 J 0.000879 J <0.00200 <0.00200 <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 0.00242 J <0.0100 0.00276 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.100 <0.100 3.03 <0.100 <0.100 0.0456 J 1.740 0.0664 J NA 0.0302 J NA 0.101 2.24 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 NA <0.100 <0.100 <0.100 0.0277 J <0.100 <0.00600 <0.00600 <0.00600 <0.00600 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00500 <0.00600 <0.00600 <0.00500 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 0.00353 J <0.00600 0.476 0.391 0.438 0.355 0.225 0.250 0.247 0.223 NA 0.268 O1 NA 0.269 0.225 0.26 0.0505 0.0509 0.00438 J 0.0151 <0.0100 NA 0.00394 J 0.00731 J 0.0207 0.033 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 J6 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND mg/L mg/L mg/L GMW-4 mg/L mg/L mg/L mg/L GMW-4 DUP-2 (GMW-4 Duplicate) GMW-2 GMW-3 mg/L mg/L mg/L Page 15 of 20 2019 to Current Historical Groundwater Analytical Results Summary Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/9/2023 09/16/2019 02/19/2020 6/22/2020 09/22/2020 11/4/2020 03/19/2021 10/7/2012 03/30/2022 10/24/2022 03/28/2023 09/09/2023 09/09/2023 3/26/2024 09/18/2019 02/18/2020 6/25/2020 09/22/2020 11/3/2020 03/23/2021 10/9/2021 03/31/2022 10/27/2022 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.250 <0.0500 <0.0500 <0.0500 <0.01 <0.0500 <0.500 <0.500 NA 0.116 <0.0500 <0.0250 <0.0500 <0.0500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.0004 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0250 <0.00500 <0.001 <0.00500 <0.0500 <0.0500 NA <0.00500 <0.250 <0.00250 <0.250 <0.250 NA NA NA NA NA NA NA <0.000500 NA NA N/A N/A N/A <0.002 NA NA NA NA NA NA <0.000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0250 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.0500 <0.0500 J3 NA <0.00500 0.00119 J 0.00101 J 0.000774 J 0.000804 J <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.0250 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.0500 0.00151 J NA 0.000152 J 0.000816 J 0.000798 0.000791 J 0.000781 J <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00125 <0.00250 <0.0125 <0.00250 <0.001 <0.00250 <0.0250 <0.0250 NA <0.00250 <0.00250 <0.00125 <0.00250 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.0250 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.0500 <0.0500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 0.00484 <0.00100 0.000309 J 0.000289 J NA 0.000347 J 0.000266 J 0.000301 J 0.000310 J <0.00500 <0.00100 <0.00100 <0.00100 <0.001 1.98 1.49 1.96 V NA 0.102 2.09 2.120 Q 2.16 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 0.0121 0.00979 J 0.0131 NA 0.000917 J 0.013 0.0142 0.0133 0.0143 0.130 0.00130 <0.00100 0.000374 J NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 1.180 1.040 1.110 V NA 0.00045 J 0.887 1.090 Q 0.965 0.778 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 0.000169 J 0.000220 J <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 J4 <0.000500 <0.00100 <0.00100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0500 <0.0100 <0.0100 <0.0100 <0.001 <0.0100 <0.100 <0.100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0250 <0.00500 <0.00500 <0.00500 <0.002 <0.00500 <0.0500 <0.0500 NA <0.00500 J4 0.00221 J 0.00194 J 0.00173 J 0.00080 J <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0500 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.100 <0.100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0250 <0.00500 <0.00500 <0.00500 <0.001 <0.00500 <0.0500 <0.0500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 C3 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 0.00302 <0.0100 <0.0100 J3, J6 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.0100 <0.0100 NA <0.00100 0.000870 J 0.000737 0.000837 J 0.00132 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 J4 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 C3 0.0233 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 0.0325 0.0269 0.0295 NA 0.00260 0.0320 0.0292 0.0268 0.02340 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 0.00307 <0.0100 <0.0100 NA 0.000351 J 0.00335 0.00260 0.00286 0.00339 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.0100 <0.0100 NA 0.00115 0.000610 J 0.000585 0.000622 J 0.000724 J <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.0125 <0.00250 <0.00250 <0.00250 <0.001 <0.00250 <0.0250 <0.0250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.001 0.00106 <0.0100 <0.0100 NA <0.00100 0.000868 J 0.000814 0.000688 J 0.00107 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.0150 <0.00300 <0.00300 <0.00300 <0.001 <0.00300 <0.0300 <0.0300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 0.0763 0.00823 0.00449 0.00558 0.00301 NA 0.00694 0.00487 B 0.00591 0.00508 0.00453 0.00301 J3 J4 0.00695 B 0.0023 1.990 1.880 2.960 3.690 NA 2.650 E 1.410 E 2.450 E 2.85 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00500 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 0.0344 0.0253 0.0465 0.0293 NA 0.0173 0.0600 0.0120 0.0583 0.0271 0.0371 0.0362 0.0342 J <0.0100 <0.0100 <0.0100 <0.0100 NA 0.00617 J <0.0100 <0.0100 <0.0100 0.133 0.308 0.307 0.336 0.276 NA 0.295 0.330 0.287 0.317 0.290 0.276 0.276 0.148 0.038 0.0734 0.0443 0.0425 NA 0.023 0.039 0.0386 0.0377 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA 0.000491 J 0.00107 J <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.005 <0.00200 <0.00200 <0.00200 <0.00200 NA 0.000660 J 0.000622 J <0.00200 <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.0014 J <0.0100 0.00154 <0.0100 <0.0100 NA 0.00265 J 0.00271 J <0.0100 <0.0100 <0.100 <0.100 0.0266 J 2.40 <0.100 NA 0.0207 J 2.010 0.0279 J 2.110 <0.100 <0.100 <0.0100 3.030 <0.100 <0.100 <0.100 <0.100 NA <0.100 NA <0.100 <0.100 0.00605 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.0200 <0.00500 <0.00500 <0.00500 <0.00600 NA 0.00485 J <0.00600 <0.00600 <0.00600 0.0243 0.627 0.766 0.615 0.607 NA 0.592 0.570 0.567 0.540 0.520 0.533 0.535 0.393 0.0126 0.0409 0.0361 0.0163 NA 0.0575 NA 0.00946 J 0.0162 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.0108 J <0.0100 <0.0100 0.0159 <0.0100 NA 0.0392 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.005 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.0002 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND mg/L mg/L mg/L GMW-4 mg/L mg/L GMW-5 DUP (GMW-5 Duplicate)GMW-6 mg/L mg/L mg/L mg/L mg/L Page 16 of 20 2019 to Current Historical Groundwater Analytical Results Summary Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/18/2019 2/19/2020 6/26/2020 09/24/2020 11/5/2020 03/23/2021 10/8/2021 04/01/2022 10/27/2022 03/30/2023 03/30/2023 09/17/2019 02/20/2020 6/23/2020 09/23/2020 11/4/2020 03/19/2021 10/7/2021 04/01/2022 10/24/2022 03/28/2023 09/09/2023 3/26/2024 <0.0500 <0.250 <0.250 <0.0500 J3 NA <0.0500 <0.0250 <0.0500 J4 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 J3 J5 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.500 <0.0500 <0.0500 <0.01 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.0004 <0.00500 <0.0250 <0.0250 <0.00500 NA <0.0500 <0.00250 <0.0500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0500 <0.00500 <0.001 NA NA NA NA NA NA <0.000500 NA NA NA NA NA NA NA NA NA NA <0.000500 NA NA NA NA <0.002 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.001 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.001 <0.00500 <0.0250 <0.0250 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 J3 J5 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0500 C3 <0.00500 <0.00500 <0.001 <0.00500 <0.0250 <0.0250 <0.00500 NA <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 J5 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.0500 <0.00500 <0.00500 <0.001 <0.00250 <0.0125 <0.0125 <0.00250 NA <0.00250 <0.00125 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00125 <0.00250 <0.0250 <0.00250 <0.001 <0.00500 <0.0250 <0.0250 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.0500 <0.00500 <0.00500 <0.001 0.0385 0.0355 0.0400 0.0261 NA 0.0497 0.0486 0.0365 0.0468 0.0432 0.036 0.00430 0.00475 J5 0.00397 NA 0.00438 0.00358 0.00360 0.00375 0.00357 J 0.00419 0.00497 0.0026 0.00138 <0.00500 0.00169 0.00117 NA 0.00191 0.00190 0.00183 0.00184 0.00194 B 0.00185 B <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.001 0.444 0.478 0.532 0.600 NA 0.453 0.645 Q 0.389 0.488 0.568 0.501 0.0133 0.0145 0.0105 NA 0.0107 0.0102 0.0112 0.0107 0.0132 0.0124 0.0135 0.0076 0.00115 <0.00500 0.00130 0.00101 NA 0.00175 0.00148 0.00132 0.00159 0.00185 0.00172 <0.00100 <0.00100 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.001 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.001 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 NA <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.001 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 J4 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.001 <0.0100 <0.0500 <0.0500 <0.0100 J3 NA <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 J5 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.100 <0.0100 <0.0100 <0.001 <0.00500 <0.0250 <0.0250 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 J5 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0500 <0.00500 <0.00500 <0.002 <0.0100 <0.0500 <0.0500 <0.0100 NA <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 J5 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.100 <0.0100 <0.0100 NA <0.00500 <0.0250 <0.0250 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 C3 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0500 <0.00500 <0.00500 <0.001 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.001 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.001 0.00145 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 J4 <0.00100 J4 <0.00100 <0.00100 J3 J5 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 C3 <0.0100 <0.00100 <0.00100 <0.001 0.00255 0.00194 0.00249 0.00129 NA 0.00254 0.00211 0.00215 C5 0.00228 0.00318 0.00309 <0.00100 <0.00100 J3 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.001 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 J4 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.001 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 0.00037 J <0.00100 <0.0100 <0.00100 <0.00100 <0.001 0.00534 0.00548 0.00464 0.00306 NA 0.00337 0.00297 0.00225 C5 0.00331 0.00292 0.00274 0.00186 0.00210 J3 J5 0.00203 NA 0.00141 0.00137 0.00136 0.00134 0.00218 J 0.00162 0.00182 0.001 <0.00100 <0.00500 0.000544 J 0.000470 J NA 0.000346 J 0.000216 J <0.00100 0.000371 J <0.00100 <0.00100 <0.00100 <0.00100 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.001 0.00189 <0.00500 0.00184 0.0011 NA 0.00212 0.00194 0.00175 0.00212 0.00297 0.00285 B <0.00100 <0.00100 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.001 <0.00250 <0.0125 <0.0125 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.0250 <0.00250 <0.00250 <0.001 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.001 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.001 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.001 <0.00100 <0.00500 0.000506 J <0.00100 NA <0.00100 0.000690 <0.00100 0.000882 J <0.00100 <0.00100 <0.00100 <0.00100 J3 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.001 <0.00300 <0.0150 <0.0150 <0.00300 NA <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 J3 J5 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.0300 <0.00300 <0.00300 <0.001 0.177 0.130 0.173 0.212 NA 0.197 0.133 E 0.191 0.241 J4 0.179 0.185 0.0274 0.0205 0.0236 0.0259 NA 0.0268 0.0208 0.0333 0.0232 0.0202 0.0251 0.0188 NA NA NA NA NA NA 0.000145 J NA <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 0.000282 J <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 0.000222 J <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 0.000195 J <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 0.000228 J <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 0.000172 J <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 0.00015 J <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 0.00135 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 0.003 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 J4 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 J4 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 J4 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00100 J4 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 0.0000465 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.00500 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA ND ND ND ND NA ND NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 0.0322 0.0286 0.0737 0.0356 NA 0.0187 0.0432 0.0316 B 0.0455 0.0203 0.0181 0.0133 <0.0100 0.00525 J <0.0100 NA <0.0100 0.00605 J 0.00759 B J <0.0100 <0.0100 <0.0100 0.0137 J 0.242 0.211 0.246 0.221 NA 0.212 0.236 0.217 0.225 0.207 0.206 0.061 0.0472 0.0513 0.0406 NA 0.0436 O1 0.0438 0.0448 0.0395 0.0421 0.0447 0.056 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA 0.000543 J 0.00125 J <0.00200 <0.00200 <0.00200 <0.00200 <0.005 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 0.00158 J <0.0100 <0.0100 1.55 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 0.00205 J <0.0100 <0.0100 0.0030 J <0.100 0.0241 J 0.791 <0.100 NA <0.100 0.524 0.0282 J 0.437 6.37 <0.100 <0.100 <0.100 <0.100 NA <0.100 0.0567 J <0.100 0.116 <0.100 <0.100 1.21 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00500 <0.00600 <0.00600 <0.00600 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.0200 0.401 0.343 0.392 0.363 NA `0.395 0.400 0.384 0.442 0.236 0.715 0.219 0.357 0.139 NA 0.173 O1 0.247 0.0832 0.131 0.0749 0.446 0.402 <0.0100 <0.0100 0.0118 <0.0100 NA <0.0100 0.0144 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA 0.0122 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.0143 J <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.005 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.0002 ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND mg/L mg/L mg/L mg/L mg/L mg/L GMW-7 DUP GMW-7 (GMW-7 Duplicate) mg/L GMW-8 mg/L mg/L mg/L Page 17 of 20 2019 to Current Historical Groundwater Analytical Results Summary Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/18/2019 02/18/2020 6/26/2020 09/22/2020 11/3/2020 03/22/2021 10/9/2021 04/05/2022 10/26/2022 03/29/2023 09/20/2019 02/19/2020 6/24/2020 09/24/2020 11/5/2020 03/24/2021 03/24/2021 10/11/2021 03/31/2022 10/27/2022 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J3 J4 <0.0500 <0.0500 0.830 <12.5 <12.5 <0.0500 J3 NA 0.0145 J <0.500 <0.250 <0.500 <1.25 J4 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.000452 J <0.250 <0.250 0.000542 J NA 0.000373 J <0.0100 <0.00500 0.000972 J <0.0250 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <1.25 <1.25 <0.00500 NA <0.00500 C3 <0.0500 C3 <0.0250 <0.0500 <0.125 NA NA NA NA NA NA <0.000500 NA NA NA NA NA NA NA NA NA NA 0.00104 J NA NA <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.00500 <0.0100 <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 0.000404 J <0.00100 <0.00100 <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.00500 <0.0100 <0.0250 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 0.0161 <1.25 <1.25 0.00213 J NA 0.00108 J <0.0500 <0.0250 <0.0500 <0.125 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 0.00267 J <1.25 <1.25 0.00581 NA 0.00371 J 0.00344 J 0.00568 0.00712 J 0.00763 J <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00125 <0.00250 <0.00250 <0.00250 <0.00250 <0.625 <0.625 0.0029 NA <0.00250 <0.0250 <0.0125 <0.0250 <0.0625 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <1.25 <1.25 <0.00500 NA <0.00500 C3 <0.0500 C3 <0.0250 <0.0500 <0.125 0.00700 0.00529 0.00634 NA 0.00332 0.00155 0.00564 Q 0.00559 0.00494 0.00654 40.000 16.700 16.100 21.500 NA 13.400 12.900 17.300 177.000 14.500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.271 0.271 0.380 0.593 NA 0.383 0.366 0.479 0.577 0.632 C5 0.00142 0.00107 0.000933 J NA 0.00122 0.000224 J 0.000812 Q 0.000749 J 0.00087 J 0.00191 2.590 3.250 8.370 20.100 NA 14.500 14.600 37.500 454.000 45.800 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.0146 <0.250 <0.250 0.0328 NA 0.0201 0.0181 0.0329 0.0394 0.0438 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.000935 J <0.250 <0.250 0.00288 NA 0.00168 C3 <0.0100 C3 0.00316 J 0.00287 J <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.00500 <0.0100 <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.00225 <0.250 <0.250 0.00048 J NA 0.000298 J <0.0100 <0.00500 <0.0100 <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.00500 <0.0100 <0.0250 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 J3 <0.0100 <0.0100 <2.50 <2.50 <2.50 0.0796 J3 NA <0.0100 <0.100 <0.0500 <0.100 <0.250 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <1.25 <1.25 0.121 J 0.0997 NA 0.0484 0.0429 J 0.00838 J <0.050 <0.125 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 0.00672 J <2.50 <2.50 0.00349 J NA 0.00161 J <0.100 <0.0500 <0.100 <0.250 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 C3 J3 <0.00500 <0.00500 <0.00500 <1.25 <1.25 <0.00500 NA <0.00500 <0.0500 <0.0250 <0.0500 <0.125 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.00798 <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.00500 <0.0100 <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.00500 <0.0100 <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.00100 NA <0.00100 C3 <0.0100 C3 <0.00500 <0.0100 <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.0178 <0.250 <0.250 0.00591 NA 0.00449 0.00852 J 0.00741 0.0118 0.0163 J <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.0702 <0.250 <0.250 0.0273 NA 0.0168 0.0148 0.011 0.0132 0.0184 J <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.00500 <0.0100 <0.0250 <0.00100 0.000439 J 0.000410 J NA <0.00100 <0.00100 0.000273 J 0.000193 J 0.000192 J <0.00100 8.320 3.270 1.600 1.690 J4 NA 0.677 0.780 1.100 1.430 1.34 C5 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.00153 <0.250 0.0959 J 0.114 NA 0.106 0.0954 0.138 0.146 0.141 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.00707 <0.250 <0.250 0.0410 NA 0.0305 0.0243 0.0594 0.856 0.103 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.625 <0.625 <0.00250 NA <0.00250 <0.0250 <0.0250 <0.0250 <0.0625 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.000711 J <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.00500 <0.0100 <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.0011 <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.00500 <0.0100 <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.00500 <0.0100 <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.0256 <0.250 <0.250 0.0549 NA 0.0311 C3, J4 0.0140 C3, J4 0.0374 0.0518 0.0537 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 0.00792 <0.750 <0.750 0.00124 J NA 0.000624 J <0.0300 0.00255 J 0.00282 J <0.0750 0.0604 0.0358 0.0412 0.0469 NA 0.0137 0.0279 0.0459 0.0422 0.0528 0.713 0.673 2.570 3.610 NA 3.290 E 3.620 E NA 4.710 E 1.82 J3 J4 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 0.000694 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 0.000929 J <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA 0.0289 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 <0.000100 NA NA NA NA NA NA NA NA NA NA NA NA NA 0.0000177 J <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA 0.000177 J 0.000032 J <0.000250 <0.000250 NA <0.000250 <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA 0.0000311 J 0.0000261 J <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA 0.000078 J 0.000115 J <0.000250 <0.000250 NA <0.000250 <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA 0.000103 J 0.0000121 J <0.000250 <0.000250 NA <0.000250 <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA ND ND ND ND NA ND ND NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA 0.00463 J 0.0122 <0.0100 0.00624 J <0.0100 0.0148 <0.0500 0.00853 J <0.0100 NA <0.0100 0.0106 0.0142 0.0125 0.0144 0.251 0.172 0.187 0.187 NA 0.107 0.183 0.218 0.23 0.252 0.807 0.0289 0.0318 0.0347 NA 0.0206 0.0212 0.0286 0.0316 0.0358 <0.00200 <0.00200 <0.00200 <0.00200 NA 0.000506 J 0.000522 J 0.000504 J <0.00200 <0.00200 <0.00200 <0.0100 <0.0100 0.000706 J NA 0.00164 J 0.00169 J 0.00104 J 0.000778 J <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 NA 0.00469 J 0.00217 J <0.0100 0.00146 J <0.0100 0.235 0.150 <0.0100 <0.0100 NA 0.00569 J 0.00577 J 0.00246 J 0.00352 J 0.00303 J <0.100 <0.100 <0.100 <0.100 NA 0.0272 J NA <0.100 0.0664 J <0.100 0.0648 J 0.0720 J <0.100 <0.100 NA 0.0282 J 0.0272 J 2.260 0.0351 J 1.990 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 0.00305 J <0.00600 <0.00500 <0.0250 <0.0250 <0.00600 NA <0.0300 <0.0300 <0.00600 <0.00600 <0.00600 0.232 0.104 0.202 0.199 NA 0.0783 NA 0.114 0.184 0.185 <0.0100 2.810 3.190 3.090 NA 5.990 V 6.070 3.250 J 3.010 2.720 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 0.00799 J <0.0100 <0.0100 0.0264 0.0533 0.00781 J 0.0152 NA 0.0102 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.0250 <0.0250 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND NA ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND mg/L mg/L mg/L mg/L GP-13 mg/L mg/L mg/L mg/L mg/L INJ-3 mg/L INJ-3 DUP-2 (INJ-3 Duplicate) Page 18 of 20 2019 to Current Historical Groundwater Analytical Results Summary Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/20/2019 02/19/2020 6/24/2020 09/24/2020 11/5/2020 03/24/2021 10/12/2021 03/31/2022 10/27/2022 09/20/2019 02/19/2020 6/24/2020 09/24/2020 11/5/2020 03/24/2021 10/8/2021 03/31/2022 10/28/2022 <100 <12.5 <12.5 <1.00 J3 NA <50.0 <250 <250 J3 J4 0.623 C5 J4 0.784 <12.5 NA**<1.00 J3 NA 0.0555 <0.250 <0.500 <1.00 J3 J4 J5 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <50.0 <0.0100 0.000701 J <0.250 NA <0.0200 NA 0.000331 J <0.00500 <0.00100 <0.0200 J3 <10.0 <1.25 <1.25 <0.100 NA <5.00 <25.0 <25.0 <0.0500 <0.00500 <1.25 NA <0.100 NA <0.00500 C3 <0.0250 <0.00500 <0.100 J3 NA NA NA NA NA NA <5.00 <5.00 NA NA NA NA NA NA NA <0.00500 NA NA <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 <0.00100 <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 J3 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 <0.00100 <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 J3 <10.0 <1.25 <1.25 <0.100 NA <5.00 <25.0 <25.0 <0.0500 0.0143 <1.25 NA <0.100 NA <0.00500 <0.0250 <0.00500 <0.100 J3 <10.0 <1.25 0.0312 J 0.0108 J NA <5.00 <5.00 <5.00 0.00839 J 0.00886 <1.25 NA <0.100 NA 0.00341 J 0.00377 J 0.00394 J 0.0039 J J3 <5.00 <0.625 <0.625 <0.0500 NA <2.50 <12.5 <12.5 <0.0250 <0.00250 <0.625 NA <0.0500 NA <0.00250 <0.0125 <0.00250 <0.0500 J3 <10.0 <1.25 <1.25 <0.100 NA <5.00 C3 <25.0 <25.0 <0.0500 <0.00500 <1.25 NA <0.100 NA <0.00500 C3 <0.0250 <0.00500 <0.100 J3 13.700 0.877 0.774 6.690 NA 3.970 12.600 7.850 14.300 45.500 4.640 NA 3.910 NA 3.620 4.230 Q 4.3900 3.62 V 1.07 J 0.191 J 0.175 J 0.470 NA 0.318 J <5.00 0.495 J 0.351 C5 0.239 J 0.145 J NA 0.153 NA 0.146 0.174 0.18 <1.00 22.400 23.900 20.600 23.700 NA 8.380 15.700 23.100 22.700 18.100 30.500 NA 26.000 NA 13.900 16.700 Q 294 27 <2.00 <0.250 <0.250 0.0282 NA <1.00 <5.00 <5.00 0.0198 0.0222 <0.250 NA 0.0130 J NA 0.0101 0.0107 0.0145 0.0121 J J3 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 0.00222 <0.250 NA <0.0200 NA 0.000813 C3, J <0.00500 <0.00100 <0.0200 J3 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 <0.00100 <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 0.00304 J 0.00893 <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 J3 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 0.000563 J <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 J3 <20.0 <2.50 <2.50 <0.200 J3 NA <10.0 <50.0 <50.0 J3 <0.100 <0.0100 <2.50 NA <0.200 J3 NA <0.0100 <0.0500 <0.0100 <0.200 J3 <10.0 <1.25 <1.25 0.277 NA <5.00 <25.0 <25.0 0.24 0.155 <1.25 NA <0.100 NA 0.00221 J <0.0250 <0.00500 <0.100 <20.0 <2.50 <2.50 <0.200 NA <10.0 <50.0 <50.0 <0.100 0.0102 <2.50 NA <0.200 NA <0.0100 <0.0500 <0.0100 <0.200 <10.0 <1.25 <1.25 <0.100 NA <5.00 <25.0 <25.0 C3 J3 <0.0500 <0.00500 <1.25 NA <0.100 NA <0.00500 <0.0250 <0.00500 <0.100 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 <0.00100 <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 J3 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 0.00786 <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 <0.00100 <0.250 NA <0.0200 NA <0.00100 C3 <0.00500 <0.00100 <0.0200 J3 <2.00 0.119 J 0.0870 J 0.0623 NA <1.00 <5.00 <5.00 0.129 0.0965 <0.250 NA 0.0164 J NA 0.00910 0.0103 0.0176 0.0208 J3 <2.00 <0.250 <0.250 0.0551 NA <1.00 <5.00 <5.00 0.122 0.203 J <0.250 NA <0.0200 NA 0.00154 <0.00500 <0.00100 <0.0200 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 <0.00100 <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 <20.0 8.660 4.240 141.000 J4 NA 620.000 624.000 453.000 293.000 2.650 J 9.940 NA 6.770 J4 NA 2.840 4.090 Q 2.31 1.79 <2.00 <0.250 0.110 J 0.182 NA <1.00 <5.00 <5.00 0.158 0.142 J <0.250 NA 0.0554 NA 0.0556 0.0460 0.0591 0.0558 <2.00 <0.250 0.0728 B, J, J4 0.0426 NA <1.00 <5.00 <5.00 0.0364 0.0480 <0.250 NA 0.0207 NA 0.0137 0.0143 0.0215 0.0212 J3 <5.00 <0.625 <0.625 <0.0500 NA <2.50 <25.0 <25.0 <0.0250 <0.00250 <0.625 NA <0.0500 NA <0.00250 <0.0250 <0.00250 <0.0500 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 0.00302 <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 J3 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 0.0023 <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 J3 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 0.00133 <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 J3 <2.00 <0.250 <0.250 0.0109 J NA <1.00 <5.00 <5.00 0.0161 0.0359 <0.250 NA 0.00607 J NA 0.00456 C3, J4 0.00563 0.0069 J 0.00539 J J3 <6.00 <0.750 <0.750 <0.0600 NA <3.00 <15.0 <15.0 0.0121 J 0.0352 <0.750 NA <0.0600 NA <0.00300 <0.0150 <0.00300 <0.0600 J3 2.260 0.248 0.326 0.542 NA 0.246 0.594 E 0.0199 J4 0.593 6.0700 7.430 7.810 10.400 NA 6.980 E 1.690 J4 2.660 J4 2.77 B J3 J4 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 NA NA NA NA NA NA NA <0.001 <0.001 NA NA NA NA NA NA NA <0.001 <0.001 NA NA NA NA NA NA NA <0.001 <0.001 NA NA NA NA NA NA NA <0.001 <0.001 NA NA NA NA NA NA NA <0.001 <0.001 NA NA NA NA NA NA NA 0.000439 <0.00100 NA NA NA NA NA NA NA <0.001 <0.00100 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA 0.000309 J <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA 0.000497 J <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA 0.00242 J <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA NA NA <0.0000500 0.0000222 J <0.0000500 <0.000100 NA <0.000100 NA NA NA 0.0000157 J <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA 0.000109 0.0000183 J <0.0000500 <0.0000500 NA <0.0000500 NA NA NA 0.000114 J 0.0000248 J <0.000250 <0.000250 NA 0.000102 J NA NA NA 0.000239 J <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA 0.0000144 J 0.0000117 J <0.0000500 <0.0000500 NA <0.0000500 NA NA NA 0.0000152 J 0.0000756 J <0.0000500 0.0000342 J NA 0.0000192 J NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA 0.0000403 J <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA 0.0000417 J <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA 0.0000648 J <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA 0.0000745 J <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA ND ND ND ND NA ND NA NA NA ND ND ND ND NA ND NA NA NA 0.0108 <0.0100 <0.0100 <0.0100 NA 0.00595 J <0.0100 <0.0100 0.00537 J 0.00982 J <0.0100 <0.0100 <0.0100 NA 0.00754 J 0.0185 <0.010 <0.0100 1.23 0.0332 0.0291 0.0297 NA 0.0203 0.0214 0.026 0.0252 0.701 0.0723 0.0694 0.065 NA 0.0317 0.0401 0.041 0.0505 O1 <0.00200 0.000805 J 0.00126 J 0.00152 J NA 0.00177 J 0.0017 J 0.00193 J 0.00104 J <0.00200 <0.00200 0.000628 J 0.000751 J NA 0.00154 J 0.00148 J 0.00121 J 0.000625 J 0.00212 J 0.0763 0.0595 0.0288 NA 0.0939 0.0342 0.0121 J 0.00419 J 0.00154 J 0.00409 J <0.0100 <0.0100 NA 0.03 0.00911 J 0.00246 J 0.00151 J 0.0222 J 0.0326 J <0.100 <0.100 NA <0.100 <0.100 0.069 J 0.305 <0.100 <0.100 <0.100 <0.100 NA <0.100 0.0204 J 0.0231 J 0.085 J <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 4.190 0.00680 J <0.100 0.0948 NA 0.572 2.100 1.200 3.790 1.900 0.0466 0.0795 0.119 NA 0.00121 J 0.229 0.219 0.406 O1 <0.0100 <0.0100 0.00777 J 0.0187 NA <0.0100 0.0278 <0.010 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 0.000223 0.000101 0.000124 NA <0.000200 0.000133 J <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND NA ND ND ND #N/A ND ND ND ND NA ND ND ND ND mg/L mg/L mg/L mg/L INJ-4 mg/L INJ-5 mg/L mg/L mg/L mg/L mg/L Page 19 of 20 2019 to Current Historical Groundwater Analytical Results Summary Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 10/2/2019 2/18/2020 6/25/2020 09/22/2020 11/3/2020 03/23/2021 10/9/2021 03/31/2022 10/27/2022 03/24/2021 10/12/2021 03/31/2022 10/28/2022 03/24/2021 10/12/2021 03/31/2022 03/31/2022 10/28/2022 03/24/2021 10/12/2021 03/31/2022 10/28/2022 <0.0500 <0.0500 <0.0500 NA 0.171 <0.0500 <0.0250 <0.0500 <0.250 J4 <500 <250 <500 2.71 C5 J4 <0.0500 <0.0250 <0.0500 <0.0500 0.0421 J 1.220 J 1.060 0.987 J 1.75 J J4 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 <0.000500 <0.00100 <0.00100 0.0000956 J <0.0250 <0.0125 <0.0250 <0.0500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.0500 <0.00250 <0.0500 <0.0250 <50.0 <25.0 <50.0 <0.250 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.125 <0.0625 <0.125 <0.250 NA NA NA NA NA NA <0.000500 NA NA NA <5.00 NA NA NA 0.000431 J NA NA NA NA 0.0534 NA NA <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 J3 J6 <10.0 123 <0.00100 <0.000500 J3 <0.00100 <0.00100 <0.00100 <0.0250 <0.0125 <0.0250 27.5 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.0250 <0.0125 <0.0250 <0.0500 <0.00500 0.00157 J <0.0500 NA <0.00500 <0.00500 0.00191 J 0.00208 J 0.00196 J <50.0 <25.0 <50.0 <0.250 0.00124 J 0.00170 J 0.00152 J 0.00155 J 0.00208 J <0.125 <0.0625 0.00776 J <0.250 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 0.000143 J <0.00500 <0.0250 <50.0 <5.00 <50.0 0.0387 J <0.00500 <0.000500 <0.00500 <0.000500 0.000705 J 0.0114 J 0.0168 0.00392 J 0.0124 J <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00125 <0.00250 <0.0125 <25.0 <12.5 <25.0 <0.125 <0.00250 <0.00125 J3 <0.00250 <0.00125 J3 <0.00250 <0.0625 <0.0313 <0.0625 <0.125 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0250 <50.0 <25.0 <50.0 <0.250 <0.00500 <0.00250 <0.00500 <0.00250 <0.00500 <0.125 <0.0625 <0.125 <0.250 2.020 0.898 1.160 NA 0.0999 0.367 0.981 Q 0.433 0.602 9.080 J 18.200 26.700 38.800 1.380 2.140 2.120 2.090 3.740 18.500 23.900 32.400 36.100 0.00666 0.00247 0.00341 J NA 0.00054 J 0.00150 0.00327 0.00157 0.00215 J <10.0 <5.00 1.230 J 1 C5 0.00389 0.00576 0.00522 0.00534 0.024 0.355 0.566 0.184 0.596 C5 0.164 0.251 0.253 NA 0.00409 0.101 0.205 Q 0.188 0.224 6.580 J 18.100 30.500 29.500 2.120 4.560 3.980 3.930 5.870 23.800 49.200 25.100 43.400 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 0.041 J 0.000449 J 0.000555 0.000558 J 0.000576 J 0.00184 0.0289 0.0376 0.0142 J 0.0348 J <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 <0.000500 J3 <0.00100 <0.00100 <0.00100 <0.0250 <0.0125 <0.0250 <0.0500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.0250 <0.0125 <0.0250 <0.0500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 0.000323 J <0.00100 <0.00100 <0.00100 <0.0250 <0.0125 <0.0250 <0.0500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J4 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 <0.000500 J3 <0.00100 <0.00100 <0.00100 <0.0250 <0.0125 <0.0250 <0.0500 <0.0100 <0.0100 <0.0100 NA 0.0144 <0.0100 <0.00500 <0.0100 <0.0500 <100 <50.0 <100 <0.500 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 0.413 <0.125 <0.250 <0.500 <0.00500 <0.00500 <0.00500 NA <0.00500 J4 <0.00500 <0.00250 <0.00500 <0.0250 <50.0 <25.0 <50.0 0.555 0.000651 J 0.00158 J 0.00110 J 0.019 J 0.0137 0.286 0.402 0.182 0.379 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0500 <100 <50.0 <100 <0.500 <0.0100 <0.00500 <0.0100 <0.0100 0.00119 J <0.250 <0.125 <0.250 <0.500 <0.00500 <0.00500 J4 <0.00500 J4 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0250 <50.0 C3 <25.0 <50.0 <0.250 <0.00500 0.00732 <0.00100 <0.00500 <0.00500 C3 <0.125 <0.0625 J4 <0.125 <0.250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 0.000207 J <0.00100 <0.00100 0.000213 J <0.0250 <0.0125 <0.0250 <0.0500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.0250 <0.0125 <0.0250 <0.0500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.0250 0.108 <0.0250 <0.0500 <0.00100 0.000601 J <0.00100 NA <0.00100 <0.00100 0.00074 0.000378 J <0.00500 <10.0 <5.00 <10.0 0.127 0.000506 J 0.000521 J3 0.000574 J 0.000596 J 0.00295 0.0747 0.0775 0.0263 0.0975 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J4 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 0.204 <0.00100 0.000888 <0.00100 0.000285 J 0.00485 0.165 0.201 0.0644 0.226 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 <0.000500 J3 <0.00100 <0.00100 <0.00100 C3 <0.0250 <0.0125 <0.0250 <0.0500 0.0121 0.00355 0.00336 J NA <0.00100 0.00214 0.00293 0.00269 J 0.00216 J 498.000 1,030.000 V 991.000 963.000 0.222 J 3.340 1.180 1.170 17.300 131.000 225.000 76.800 230.000 0.00276 0.00105 <0.00100 NA 0.00024 J 0.000458 J 0.000744 0.000587 J <0.00500 <10.0 <5.00 <10.0 0.352 0.00174 0.00239 0.00215 0.0022 0.00715 0.256 0.307 0.102 0.307 <0.00100 <0.00100 <0.00100 NA 0.000257 J <0.00100 <0.000500 <0.000500 <0.00500 <10.0 <5.00 <10.0 0.0621 0.345 J 0.000601 0.000561 J 0.000565 J 0.00179 0.0519 0.0637 0.0201 J 0.0599 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.0125 <25.0 <25.0 <25.0 <0.125 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.0625 <0.0625 <0.0625 <0.125 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 0.00302 <0.00100 <0.00100 <0.00100 <0.0250 <0.0125 <0.0250 <0.0500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 0.00133 <0.00100 <0.00100 <0.00100 <0.0250 <0.0125 <0.0250 <0.0500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 0.000825 <0.00100 <0.00100 <0.00100 <0.0250 <0.0125 <0.0250 <0.0500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 0.000631 0.000644 J <0.00500 <10.0 <5.00 <10.0 0.0251 J 0.00561 0.00789 J3 0.00747 0.00733 0.0145 0.0235 J 0.0276 0.0186 J 0.0264 J <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.0150 <30.0 <15.0 <30.0 <0.150 <0.00300 0.00409 <0.00300 <0.00300 <0.00300 0.0115 J 0.0126 J <0.0750 0.0167 J 1.020 E 0.139 0.374 0.253 NA 0.156 0.338 E 0.194 E 0.175 0.00151 0.00811 0.0439 0.0242 0.0328 0.00529 0.00125 B 0.0027 0.0182 0.783 E 1.500 E 0.0415 J4 0.435 E J4 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 NA NA NA <0.0100 NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 NA NA NA <0.001 NA NA NA <0.001 NA NA NA NA 0.000144 J NA NA NA NA NA NA NA <0.001 <0.001 NA NA NA <0.001 NA NA NA <0.001 NA NA NA NA 0.0000613 NA NA NA NA NA NA NA <0.001 <0.001 NA NA NA <0.001 NA NA NA <0.001 NA NA NA NA 0.000146 J NA NA NA NA NA NA NA NA <0.00100 NA NA NA <0.00100 NA NA NA <0.00100 NA NA NA NA <0.00100 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 NA NA NA <0.00300 NA NA NA NA <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 NA NA NA <0.00300 NA NA NA NA <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 NA NA NA <0.00300 NA NA NA NA <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 NA NA NA <0.00300 NA NA NA NA <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 NA NA NA <0.00300 NA NA NA NA <0.00300 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 NA NA NA <0.0100 NA NA NA NA <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 NA NA NA <0.0100 NA NA NA NA <0.0100 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 NA NA NA <0.0100 NA NA NA NA <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 NA NA NA <0.0100 NA NA NA NA <0.0100 NA NA NA <0.0100 0.000441 J 0.00480 J NA <0.0100 <0.0100 NA NA NA <0.0100 NA NA NA <0.0100 NA NA NA NA <0.0100 NA NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA NA NA <0.000100 NA NA NA <0.000100 NA NA NA NA <0.000100 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA <0.000250 NA NA NA <0.000250 NA NA NA NA <0.000250 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA <0.000250 NA NA NA <0.000250 NA NA NA NA <0.000250 NA NA NA <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA <0.000250 NA NA NA <0.000250 NA NA NA NA <0.000250 NA NA NA ND ND ND ND NA ND NA NA NA ND NA NA NA ND NA NA NA NA ND NA NA NA <0.0100 <0.0100 <0.0100 0.00573 J NA 0.00718 J 0.0194 <0.0500 0.0128 0.0315 J 0.0108 0.0108 0.0139 0.00797 J 0.00454 J 0.0118 0.0117 0.0194 <0.0500 0.0464 0.0347 0.0467 0.151 0.0204 0.0217 0.0212 NA 0.0194 0.0231 0.17 0.0172 0.0245 J 0.0261 0.0311 0.035 0.0304 0.0420 0.0288 0.0326 0.0547 0.023 J 0.0281 0.0182 0.0421 <0.00200 0.00117 J <0.00200 0.000627 J NA 0.00253 0.00185 J 0.00856 J 0.000695 J 0.00429 J 0.00137 J 0.00101 J 0.0012 J 0.00104 J 0.00117 J 0.000580 J 0.000608 J <0.00200 0.0028 J <0.00200 <0.00200 0.000715 J <0.0100 0.0128 0.0126 0.00621 J NA 0.00375 J 0.00586 J 0.0257 J 0.00159 J <0.0500 0.00321 J <0.0100 0.0035 J <0.0100 0.00153 J <0.0100 <0.0100 <0.0100 0.00789 J 0.00333 J <0.0100 0.00507 J <0.100 <0.100 <0.100 <0.100 NA 0.0185 J NA 0.177 J 0.362 <0.500 0.0839 J 0.0237 J 3.05 <0.100 0.456 <0.100 <0.100 3.65 <0.500 9.460 0.248 7.62 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.0300 <0.0300 0.0152 J 0.00338 J <0.0300 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 0.003 J <0.0300 <0.00600 <0.00600 <0.00600 0.0627 2.080 0.900 0.482 NA 8.200 NA 17.8 2.04 12.500 7.700 V 7.51 7.08 1.910 1.240 1.330 1.220 0.962 14.200 8.860 6.400 6.300 <0.0100 0.0210 0.0181 0.0246 NA 0.0408 0.0260 <0.0500 <0.0100 <0.0500 0.0316 7.93 J <0.0100 <0.0100 0.0252 <0.0100 <0.0100 <0.0100 0.0447 J 0.0291 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.0250 <0.00500 <0.0250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.0250 <0.00500 <0.00500 0.00159 J <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND INJ-9INJ-7 INJ-8 mg/L mg/L INJ-8INJ-880XDUP (INJ-8 Duplicate)INJ-6 mg/L mg/L mg/L Page 20 of 20 Attachments | UDEQ Response to Comments | Chromalox, Inc., Ogden, Utah | rpsgroup.com Attachment 3 Updated Analytical Trend Graphs RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035 0.004 09/17/2019 02/19/2020 6/23/2020 11/4/2020 03/23/2021 10/7/2021 03/30/2022 10/24/2022 3/28/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-1 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 09/17/2019 02/19/2020 6/23/2020 11/4/2020 03/23/2021 10/7/2021 03/30/2022 10/24/2022 3/28/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-1 1,1-DCE 1,1-Dichloroethene 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.001 0.002 0.003 0.004 0.005 0.006 0.007 09/17/2019 02/19/2020 06/23/2020 09/22/2020 03/23/2021 10/7/2021 03/30/2022 10/24/2022 03/28/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-1 1,4 Dioxane 1,4-Dioxane 1st Round 2024 Groundwater Monitoring March 2024 117-RPS221588 RPS Project Number 222153 Attachment 3 Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 09/17/2019 02/19/2020 06/23/2020 09/22/2020 03/23/2021 10/7/2021 03/30/2022 10/24/2022 03/28/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-1 Metals Arsenic Mangenese 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 09/17/2019 02/20/2020 6/23/2020 11/4/2020 03/19/2021 10/7/20201 03/30/2022 10/25/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-5 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035 09/17/2019 02/20/2020 6/23/2020 11/4/2020 03/19/2021 10/7/20201 03/30/2022 10/25/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-5 1,1-DCE 1,1-Dichloroethene RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 09/17/2019 02/20/2020 6/23/2020 09/23/2020 03/19/2021 10/7/20201 03/30/2022 10/25/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-5 1,4 Dioxane 1,4-Dioxane RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 09/17/2019 02/20/2020 6/23/2020 09/23/2020 03/19/2021 10/7/20201 03/30/2022 10/25/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-5 Metals Arsenic Mangenese RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0002 0.0004 0.0006 0.0008 0.001 0.0012 0.0014 09/17/2019 02/18/2020 6/25/2020 11/3/2020 03/22/2021 04/01/2022 10/27/2022 03/29/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-7 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.01 0.02 0.03 0.04 0.05 0.06 09/17/2019 02/18/2020 6/25/2020 11/3/2020 03/22/2021 04/01/2022 10/27/2022 03/29/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-7 1,1-DCE 1,1-Dichloroethene 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 0.003 09/17/2019 02/18/2020 6/25/2020 09/22/2020 03/22/2021 04/01/2022 10/27/2022 03/29/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-7 1,4 Dioxane 1,4-Dioxane 1st Round 2024 Groundwater Monitoring March 2024 117-RPS221588 RPS Project Number 222153 Attachment 3 Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 09/17/2019 02/18/2020 6/25/2020 09/22/2020 03/22/2021 04/01/2022 10/27/2022 03/29/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-7 Metals Arsenic Mangenese 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 09/16/2019 02/20/2020 6/22/2020 11/4/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 09/09/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-8 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 09/16/2019 02/20/2020 6/22/2020 11/4/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 09/09/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-8 1,1-DCE 1,1-Dichloroethene 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 22153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 09/16/2019 02/20/2020 6/22/2020 09/22/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 09/09/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-8 Dioxane 1,4-Dioxane 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 09/16/2019 02/20/2020 6/22/2020 09/22/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 09/09/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-8 Metals Arsenic Mangenese 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.00005 0.0001 0.00015 0.0002 0.00025 09/16/2019 2/20/2020 6/23/2020 11/4/2020 03/19/2021 10/5/2021 04/01/2022 10/24/2022 03/28/2023 09/09/2023 Co n c e n t r a t i o n ( m g / L ) MW-9 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.00005 0.0001 0.00015 0.0002 0.00025 0.0003 0.00035 09/16/2019 2/20/2020 6/23/2020 11/4/2020 03/19/2021 10/5/2021 04/01/2022 10/24/2022 03/28/2023 09/09/2023 Co n c e n t r a t i o n ( m g / L ) MW-9 1,1-DCE 1,1-Dichloroethene RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0002 0.0004 0.0006 0.0008 0.001 0.0012 0.0014 09/16/2019 2/20/2020 6/23/2020 09/23/2020 03/19/2021 10/5/2021 04/01/2022 10/24/2022 03/28/2023 09/09/2023 Co n c e n t r a t i o n ( m g / L ) MW-9 1,4 Dioxane 1,4-Dioxane RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 09/16/2019 2/20/2020 6/23/2020 09/23/2020 03/19/2021 10/5/2021 04/01/2022 10/24/2022 03/28/2023 09/09/2023 Co n c e n t r a t i o n ( m g / L ) MW-9 Metals Arsenic Mangenese RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.001 0.002 0.003 0.004 0.005 0.006 10/2/2019 02/18/2020 6/25/2020 11/3/2020 03/22/2021 10/5/2021 04/04/2022 10/26/2022 03/29/2023 9/11/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-10B VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.01 0.02 0.03 0.04 0.05 0.06 10/2/2019 02/18/2020 6/25/2020 11/3/2020 03/22/2021 10/5/2021 04/04/2022 10/26/2022 03/29/2023 9/11/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-10B 1,1-DCE 1,1-Dichloroethene 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 0.016 0.018 0.02 10/2/2019 02/18/2020 6/25/2020 09/22/2020 03/22/2021 10/5/2021 04/04/2022 10/26/2022 03/29/2023 9/12/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-10B 1,4 Dioxane 1,4-Dioxane 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 1st Round 2024 Groundwater Monitoring March 2024 0 0.1 0.2 0.3 0.4 0.5 0.6 10/2/2019 02/18/2020 6/25/2020 09/22/2020 03/22/2021 10/5/2021 04/04/2022 10/26/2022 03/29/2023 9/12/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-10B Metals Arsenic Mangenese RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 09/19/2019 6/25/2020 09/22/2020 03/22/2021 10/5/2021 04/04/2022 10/25/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-11 VOCs (P&A 6-2023) 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 09/19/2019 6/25/2020 09/22/2020 03/22/2021 10/5/2021 04/04/2022 10/25/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-11 1,1-DCE (P&A 6-2023) 1,1-Dichloroethene RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 09/19/2019 6/25/2020 09/22/2020 03/22/2021 10/5/2021 04/04/2022 10/25/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-11 1,4 Dioxane (P&A 6-2023) 1,4-Dioxane RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 09/19/2019 6/25/2020 09/22/2020 03/22/2021 10/5/2021 04/04/2022 10/25/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-11 Metals (P&A 6-2023) Arsenic Mangenese RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 0.003 09/19/2019 02/19/2020 6/23/2020 09/24/2020 03/23/2021 10/8/2021 03/30/2022 10/26/2022 03/28/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-12S VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 09/19/2019 02/19/2020 6/23/2020 09/24/2020 03/23/2021 10/8/2021 03/30/2022 10/26/2022 03/28/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-12S 1,1-DCE 1,1-Dichloroethene 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.001 0.002 0.003 0.004 0.005 0.006 09/19/2019 02/19/2020 6/23/2020 09/24/2020 03/23/2021 10/8/2021 03/30/2022 10/26/2022 03/28/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-12S 1,4 Dioxane 1,4-Dioxane 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 09/19/2019 02/19/2020 6/23/2020 09/24/2020 03/23/2021 10/8/2021 03/30/2022 10/26/2022 03/28/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-12S Metals Arsenic Mangenese 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 1st Round 2024 Groundwater Monitoring March 2024 0 0.0002 0.0004 0.0006 0.0008 0.001 0.0012 0.0014 0.0016 0.0018 0.002 09/19/2019 02/19/2020 6/23/2020 09/24/2020 03/23/2021 10/8/2021 3/30/2022 10/26/2022 03/28/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-12D VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform RPS Project Number 222153 Attachment 3 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 09/19/2019 02/19/2020 6/23/2020 09/24/2020 03/23/2021 10/8/2021 3/30/2022 10/26/2022 03/28/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-12D 1,1-DCE 1,1-Dichloroethene 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 09/19/2019 02/19/2020 6/23/2020 09/24/2020 03/23/2021 10/8/2021 3/30/2022 10/26/2022 03/28/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-12D 1,4 Dioxane 1,4-Dioxane 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 09/19/2019 02/19/2020 6/23/2020 09/24/2020 03/23/2021 10/8/2021 3/30/2022 10/26/2022 03/28/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-12D Metals Arsenic Mangenese 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 1st Round 2024 Groundwater Monitoring March 2024 0 0.05 0.1 0.15 0.2 0.25 0.3 09/20/2019 02/18/2020 6/24/2020 11/3/2020 03/23/2021 10/5/2021 03/29/2022 10/27/2022 03/29/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-13S VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform Oxidant Injection RPS Project Number 222153 Attachment 3 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0.000 1.000 2.000 3.000 4.000 5.000 6.000 7.000 8.000 9.000 10.000 09/20/2019 02/18/2020 6/24/2020 11/3/2020 03/23/2021 10/5/2021 03/29/2022 10/27/2022 03/29/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-13S 1,1-DCE 1,1-Dichloroethene 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.2 0.4 0.6 0.8 1 1.2 09/20/2019 02/18/2020 6/24/2020 09/23/2020 03/23/2021 10/5/2021 03/29/2022 10/27/2022 03/29/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-13S 1,4 Dioxane 1,4-Dioxane 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.5 1 1.5 2 2.5 09/20/2019 02/18/2020 6/24/2020 09/23/2020 03/23/2021 10/5/2021 03/29/2022 10/27/2022 03/29/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-13S Metals Arsenic Mangenese 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 1st Round 2024 Groundwater Monitoring March 2024 Oxidant Injection 10/15/2… 0 0.5 1 1.5 2 2.5 09/19/2019 0218/2020 6/24/2020 11/3/2020 03/23/2021 10/5/2021 03/29/2022 10/27/2022 03/29/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-13D VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform Oxidant Injection RPS Project Number 222153 Attachment 3 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 09/19/2019 0218/2020 6/24/2020 11/3/2020 03/23/2021 10/5/2021 03/29/2022 10/27/2022 03/29/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-13D 1,1-DCE 1,1-Dichloroethene 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.001 0.002 0.003 0.004 0.005 0.006 09/19/2019 0218/2020 6/24/2020 09/23/2020 03/23/2021 10/5/2021 03/29/2022 10/27/2022 03/29/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-13D 1,4 Dioxane 1,4-Dioxane 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 09/19/2019 0218/2020 6/24/2020 09/23/2020 03/23/2021 10/5/2021 03/29/2022 10/27/2022 03/29/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-13D Metals Arsenic Mangenese 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachement 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 09/20/2019 02/19/2020 6/24/2020 09/24/2020 03/24/2021 10/12/2021 03/29/2022 10/27/2022 03/30/2023 9/11/2023 3/27/2024 Co n c e n t r a t i o n ( m g / L ) MW-14S VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0.000 10.000 20.000 30.000 40.000 50.000 60.000 70.000 80.000 90.000 09/20/2019 02/19/2020 6/24/2020 09/24/2020 03/24/2021 10/12/2021 03/29/2022 10/27/2022 03/30/2023 9/11/2023 3/27/2024 Co n c e n t r a t i o n ( m g / L ) MW-14S 1,1-DCE 1,1-Dichloroethene 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 09/20/2019 02/19/2020 6/24/2020 09/24/2020 03/24/2021 10/12/2021 03/29/2022 10/27/2022 03/30/2023 9/12/2023 3/27/2024 Co n c e n t r a t i o n ( m g / L ) MW-14S 1,4 Dioxane 1,4-Dioxane 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 5 10 15 20 25 09/20/2019 02/19/2020 6/24/2020 09/24/2020 03/24/2021 10/12/2021 03/29/2022 10/27/2022 03/30/2023 9/12/2023 3/27/2024 Co n c e n t r a t i o n ( m g / L ) MW-14S Metals Arsenic Mangenese 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 09/20/2019 02/19/2020 6/24/2020 09/24/2020 03/24/2021 10/12/2021 03/29/2022 10/27/2022 03/30/2023 9/11/2023 3/27/2024 Co n c e n t r a t i o n ( m g / L ) MW-14D VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0.000 0.200 0.400 0.600 0.800 1.000 1.200 1.400 09/20/2019 02/19/2020 6/24/2020 09/24/2020 03/24/2021 10/12/2021 03/29/2022 10/27/2022 03/30/2023 9/11/2023 3/27/2024 Co n c e n t r a t i o n ( m g / L ) MW-14D 1,1-DCE 1,1-Dichloroethene 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 0.016 09/20/2019 02/19/2020 6/24/2020 09/24/2020 03/24/2021 10/12/2021 03/29/2022 10/27/2022 03/30/2023 9/12/2023 3/27/2024 Co n c e n t r a t i o n ( m g / L ) MW-14D 1,4 Dioxane 1,4-Dioxane 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 09/20/2019 02/19/2020 6/24/2020 09/24/2020 03/24/2021 10/12/2021 03/29/2022 10/27/2022 03/30/2023 9/12/2023 3/27/2024 Co n c e n t r a t i o n ( m g / L ) MW-14D Metals Arsenic Mangenese 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 0.016 0.018 10/2/2019 02/20/2020 6/22/2020 11/4/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 Co n c e n t r a t i o n ( m g / L ) MW-15 VOCs (P&A 6-2023) 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 10/2/2019 02/20/2020 6/22/2020 11/4/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 Co n c e n t r a t i o n ( m g / L ) MW-15 1,1-DCE (P&A 6-2023) 1,1-Dichloroethene RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 10/2/2019 02/20/2020 6/22/2020 09/23/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 Co n c e n t r a t i o n ( m g / L ) MW-15 1,4 Dioxane (P&A 6-2023) 1,4-Dioxane RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 10/2/2019 02/20/2020 6/22/2020 09/23/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 Co n c e n t r a t i o n ( m g / L ) MW-15 Metals (P&A 6-2023) Arsenic Mangenese RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.001 0.002 0.003 0.004 0.005 0.006 0.007 10/2/2019 02/18/2020 6/24/2020 11/4/2020 03/22/2021 10/9/2021 04/04/2022 10/25/2022 03/29/2023 9/11/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-16 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 10/2/2019 02/18/2020 6/24/2020 11/4/2020 03/22/2021 10/9/2021 04/04/2022 10/25/2022 03/29/2023 9/11/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-16 1,1-DCE 1,1-Dichloroethene 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 02/18/2020 6/24/2020 09/21/2020 03/22/2021 10/9/2021 04/04/2022 10/25/2022 03/29/2023 9/12/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-16 1,4 Dioxane 1,4-Dioxane 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 10/2/2019 02/18/2020 6/24/2020 09/21/2020 03/22/2021 10/9/2021 04/04/2022 10/25/2022 03/29/2023 9/12/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-16 Metals Arsenic Mangenese 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 10/2/2019 02/20/2020 6/23/2020 11/4/2020 03/19/2021 10/5/2021 04/01/2022 10/25/2022 03/28/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-17 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0002 0.0004 0.0006 0.0008 0.001 0.0012 0.0014 0.0016 0.0018 0.002 10/2/2019 02/20/2020 6/23/2020 11/4/2020 03/19/2021 10/5/2021 04/01/2022 10/25/2022 03/28/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-17 1,1-DCE 1,1-Dichloroethene 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035 0.004 10/2/2019 02/20/2020 6/23/2020 09/23/2020 03/19/2021 10/5/2021 04/01/2022 10/25/2022 03/28/2023 09/09/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-17 1,4 Dioxane 1,4-Dioxane 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 10/2/2019 02/20/2020 6/23/2020 09/23/2020 03/19/2021 10/5/2021 04/01/2022 10/25/2022 03/28/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-17 Metals Arsenic Mangenese 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0001 0.0002 0.0003 0.0004 0.0005 0.0006 10/2/2019 02/20/2020 6/23/2020 11/4/2020 03/19/2021 10/5/2021 04/01/2022 10/25/2022 03/28/2023 09/09/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-18 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.00005 0.0001 0.00015 0.0002 0.00025 0.0003 0.00035 0.0004 0.00045 0.0005 10/2/2019 02/20/2020 6/23/2020 11/4/2020 03/19/2021 10/5/2021 04/01/2022 10/25/2022 03/28/2023 09/09/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-18 1,1-DCE 1,1-Dichloroethene 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035 0.004 10/2/2019 02/20/2020 6/23/2020 09/23/2020 03/19/2021 10/5/2021 04/01/2022 10/25/2022 03/28/2023 09/09/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-18 1,4 Dioxane 1,4-Dioxane 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 10/2/2019 02/20/2020 6/23/2020 09/23/2020 03/19/2021 10/5/2021 04/01/2022 10/25/2022 03/28/2023 09/09/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-18 Metals Arsenic Mangenese 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 10/11/2021 04/04/2022 10/25/2022 03/29/2023 9/11/2023 Co n c e n t r a t i o n ( m g / L ) MW-19 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0002 0.0004 0.0006 0.0008 0.001 0.0012 0.0014 10/11/2021 04/04/2022 10/25/2022 03/29/2023 9/11/2023 Co n c e n t r a t i o n ( m g / L ) MW-19 1,1-DCE 1,1-Dichloroethene RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035 10/11/2021 04/04/2022 10/25/2022 03/29/2023 9/12/2023 Co n c e n t r a t i o n ( m g / L ) MW-19 1,4 Dioxane 1,4-Dioxane RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 10/11/2021 04/04/2022 10/25/2022 03/29/2023 9/12/2023 Co n c e n t r a t i o n ( m g / L ) MW-19 Metals Arsenic Mangenese RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 1st Round 2024 Groundwater Monitoring March 2024 0 0.0002 0.0004 0.0006 0.0008 0.001 0.0012 10/11/2021 04/04/2022 10/26/2022 03/29/2023 9/11/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-20 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform RPS Project Number 222153 Attachment 3 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.01 0.02 0.03 0.04 0.05 0.06 10/11/2021 04/04/2022 10/26/2022 03/29/2023 9/11/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-20 1,1-DCE 1,1-Dichloroethene 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 10/11/2021 04/04/2022 10/26/2022 03/29/2023 9/12/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-20 1,4 Dioxane 1,4-Dioxane 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 10/11/2021 04/04/2022 10/26/2022 03/29/2023 9/12/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) MW-20 Metals Arsenic Mangenese 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.00002 0.00004 0.00006 0.00008 0.0001 0.00012 0.00014 0.00016 0.00018 10/11/2021 04/04/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-21 VOCs (P&A 6-2023) 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.01 0.02 0.03 0.04 0.05 0.06 10/11/2021 04/04/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-21 1,1-DCE (P&A 6-2023) 1,1-Dichloroethene RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 10/11/2021 04/04/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-21 1,4 Dioxane (P&A 6-2023) 1,4-Dioxane RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0.000 0.050 0.100 0.150 0.200 0.250 0.300 0.350 0.400 10/11/2021 04/04/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-21 Metals (P&A 6-2023) Arsenic Mangenese RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 10/11/2021 04/04/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-22 VOCs (P&A 6-2023) 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 10/11/2021 04/04/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-22 1,1-DCE (P&A 6-2023) 1,1-Dichloroethene RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.001 0.002 0.003 0.004 0.005 0.006 0.007 0.008 0.009 0.01 10/11/2021 04/04/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-22 1,4 Dioxane (P&A 6-2023) 1,4-Dioxane RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 10/11/2021 04/04/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-22 Metals (P&A 6-2023) Arsenic Mangenese RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 09/18/2019 2/28/2020 6/25/2020 11/3/2020 03/22/2021 10/11/2021 04/05/2022 10/24/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-1 VOCs (P&A 6-2023) 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 09/18/2019 2/28/2020 6/25/2020 11/3/2020 03/22/2021 10/11/2021 04/05/2022 10/24/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-1 1,1-DCE (P&A 6-2023) 1,1-Dichloroethene RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0001 0.0002 0.0003 0.0004 0.0005 0.0006 09/18/2019 2/28/2020 6/25/2020 09/21/2020 03/22/2021 10/11/2021 04/05/2022 10/24/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-1 1,4 Dioxane (P&A 6-2023) 1,4-Dioxane RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 09/18/2019 2/28/2020 6/25/2020 09/21/2020 03/22/2021 10/11/2021 04/05/2022 10/24/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-1 Metals (P&A 6-2023) Arsenic Mangenese RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 09/18/2019 02/18/2020 6/25/2020 11/3/2020 03/22/2021 10/5/2021 04/05/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-2 VOCs (P&A 6-2023) 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.00005 0.0001 0.00015 0.0002 0.00025 0.0003 0.00035 0.0004 09/18/2019 02/18/2020 6/25/2020 11/3/2020 03/22/2021 10/5/2021 04/05/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-2 1,1-DCE (P&A 6-2023) 1,1-Dichloroethene RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0002 0.0004 0.0006 0.0008 0.001 0.0012 0.0014 0.0016 0.0018 0.002 09/18/2019 02/18/2020 6/25/2020 09/22/2020 03/22/2021 10/5/2021 04/05/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-2 1,4 Dioxane (P&A 6-2023) 1,4-Dioxane RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 09/18/2019 02/18/2020 6/25/2020 09/22/2020 03/22/2021 10/5/2021 04/05/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-2 Metals (P&A 6-2023) Arsenic Mangenese RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 09/17/2019 02/19/2020 6/23/2020 11/4/2020 03/22/2021 10/9/2021 04/01/2022 10/24/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-3 VOCs (P&A 6-2023) 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035 0.004 09/17/2019 02/19/2020 6/23/2020 11/4/2020 03/22/2021 10/9/2021 04/01/2022 10/24/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-3 1,1-DCE (P&A 6-2023) 1,1-Dichloroethene RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.002 0.004 0.006 0.008 0.01 0.012 09/17/2019 02/19/2020 6/23/2020 09/22/2020 03/22/2021 10/9/2021 04/01/2022 10/24/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-3 1,4 Dioxane (P&A 6-2023) 1,4-Dioxane RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 09/17/2019 02/19/2020 6/23/2020 09/22/2020 03/22/2021 10/9/2021 04/01/2022 10/24/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-3 Metals (P&A 6-2023) Arsenic Mangenese RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04 09/17/2019 02/20/2020 6/22/2020 11/4/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) GMW-4 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 09/17/2019 02/20/2020 6/22/2020 11/4/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) GMW-4 1,1-DCE 1,1-Dichloroethene RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 09/17/2019 02/20/2020 6/22/2020 09/23/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) GMW-4 1,4 Dioxane 1,4-Dioxane RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.01 0.02 0.03 0.04 0.05 0.06 09/17/2019 02/20/2020 6/22/2020 09/23/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) GMW-4 Metals Arsenic Mangenese RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 09/16/2019 02/19/2020 6/22/2020 11/4/2020 03/19/2021 10/7/2012 03/30/2022 10/24/2022 03/28/2023 9/12/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) GMW-5 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0.00000 0.00020 0.00040 0.00060 0.00080 0.00100 0.00120 0.00140 09/16/2019 02/19/2020 6/22/2020 11/4/2020 03/19/2021 10/7/2012 03/30/2022 10/24/2022 03/28/2023 9/12/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) GMW-5 1,1-DCE 1,1-Dichloroethene 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.001 0.002 0.003 0.004 0.005 0.006 0.007 0.008 0.009 09/16/2019 02/19/2020 6/22/2020 09/22/2020 03/19/2021 10/7/2012 03/30/2022 10/24/2022 03/28/2023 9/12/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) GMW-5 1,4 Dioxane 1,4-Dioxane 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 09/16/2019 02/19/2020 6/22/2020 09/22/2020 03/19/2021 10/7/2012 03/30/2022 10/24/2022 03/28/2023 9/12/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) GMW-5 Metals Arsenic Mangenese 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.001 0.002 0.003 0.004 0.005 0.006 09/18/2019 2/19/2020 6/26/2020 09/24/2020 03/23/2021 10/8/2021 04/01/2022 10/27/2022 03/30/2023 Co n c e n t r a t i o n ( m g / L ) GMW-7 VOCs (P&A 6-2023) 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 09/18/2019 2/19/2020 6/26/2020 09/24/2020 03/23/2021 10/8/2021 04/01/2022 10/27/2022 03/30/2023 Co n c e n t r a t i o n ( m g / L ) GMW-7 1,1-DCE (P&A 6-2023) 1,1-Dichloroethene RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 09/18/2019 2/19/2020 6/26/2020 09/24/2020 03/23/2021 10/8/2021 04/01/2022 10/27/2022 03/30/2023 Co n c e n t r a t i o n ( m g / L ) GMW-7 1,4 Dioxane (P&A 6-2023) 1,4-Dioxane RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 09/18/2019 2/19/2020 6/26/2020 09/24/2020 03/23/2021 10/8/2021 04/01/2022 10/27/2022 03/30/2023 Co n c e n t r a t i o n ( m g / L ) GMW-7 Metals (P&A 6-2023) Arsenic Mangenese RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 09/17/2019 02/20/2020 6/23/2020 11/4/2020 03/19/2021 10/7/2021 04/01/2022 10/24/2022 03/28/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) GMW-8 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 0.016 09/17/2019 02/20/2020 6/23/2020 11/4/2020 03/19/2021 10/7/2021 04/01/2022 10/24/2022 03/28/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) GMW-8 1,1-DCE 1,1-Dichloroethene 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 09/17/2019 02/20/2020 6/23/2020 09/23/2020 03/19/2021 10/7/2021 04/01/2022 10/24/2022 03/28/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) GMW-8 1,4 Dioxane 1,4-Dioxane 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 222153 Attachment 3 Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 09/17/2019 02/20/2020 6/23/2020 09/23/2020 03/19/2021 10/7/2021 04/01/2022 10/24/2022 03/28/2023 9/9/2023 3/26/2024 Co n c e n t r a t i o n ( m g / L ) GMW-8 Metals Arsenic Mangenese 1st Round 2024 Groundwater Monitoring March 2024 RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.00005 0.0001 0.00015 0.0002 0.00025 0.0003 0.00035 0.0004 0.00045 0.0005 09/18/2019 02/18/2020 6/26/2020 11/3/2020 03/22/2021 10/9/2021 04/05/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GP-13 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 09/18/2019 02/18/2020 6/26/2020 11/3/2020 03/22/2021 10/9/2021 04/05/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GP-13 1,1-DCE (P&A 6-2023) 1,1-Dichloroethene RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 09/18/2019 02/18/2020 6/26/2020 09/22/2020 03/22/2021 10/9/2021 04/05/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GP-13 1,4 Dioxane 1,4-Dioxane RPS Project Number 117-593692-24002 Attachment __ GW Trend Graphs 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 09/18/2019 02/18/2020 6/26/2020 09/22/2020 03/22/2021 10/9/2021 04/05/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GP-13 Metals (P&A 6-2023) Arsenic Mangenese Attachments | UDEQ Response to Comments | Chromalox, Inc., Ogden, Utah | rpsgroup.com Attachment 4 Data Useability Summary Attachments | UDEQ Response to Comments | Chromalox, Inc., Ogden, Utah | rpsgroup.com Attachment 5 2023 Updated Groundwater Monitoring Analytical Results Table 2 2023 Groundwater Analytical Results Summary1 (Revised April 2024) 2150 N. Rulon White Boulevard Ogden, Utah 84408 Page 1 of 5 Sample ID Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels MW-1 MW-5 MW-7 MW-8 MW09 MW-10B DUP (MW-10B Duplicate) Utah Ground Water Quality Standards USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL)Date Collected 03/28/2023 9/9/2023 03/28/2023 09/09/2023 03/29/2023 09/09/2023 03/28/2023 09/09/2023 03/28/2023 09/09/2023 03/29/2023 09/12/2023 09/12/2023 VOCs - USEPA Method 8260B/8260C mg/L Acetone NE 14 NE <0.0500 J4 <0.0500 <0.0500 J4 <0.0500 <0.0500 J4 <0.0500 <0.0500 J4 <0.0500 <0.0500 J4 <0.0500 <0.0500 J4 <0.0500 <0.0500 Benzene 0.005 0.00046 0.005 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 Carbon Disulfide NE NE NE NA NA NA NA NA NA NA NA NA NA NA NA NA Carbon Tetrachloride 0.005 0.00046 0.005 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 Chlorobenzene 0.1 0.078 0.1 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 Chloroethane NE 21 NE <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 Chloroform NE 0.00022 0.08 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 Dichlorodifluoromethane NE 0.2 NE <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 1,1-Dichloroethane NE 0.0028 NE <0.00100 <0.00100 0.0016 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.00542 0.00371 0.00445 1,2-Dichloroethane 0.005 0.00017 0.005 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 1,1-Dichloroethene 0.007 0.28 0.007 <0.00100 <0.00100 0.00326 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.0501 0.0355 0.0357 Cis-1,2-Dichloroethene 0.07 0.036 0.07 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 Trans-1,2-Dichloroethene 0.1 0.36 0.1 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 Di-Isopropyl Ether NE 1.5 NE <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 Ethylbenzene 0.7 0.0015 0.7 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 p-Isopropyltoluene NE NE NE <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 2-Butanone (MEK)NE 5.6 NE <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 Methylene Chloride 0.005 0.011 0.005 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 Naphthalene NE 0.00017 NE <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 n-Propylbenzene NE 0.66 NE <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 1,1,2,2-Tetrachloroethane NE 0.000076 NE <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 1,1,2-Trichlorotrifluoroethane NE 10 NE <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 Tetrachloroethene 0.005 0.011 0.005 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 Toluene 1 1.1 1 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 1,2,3-Trichlorobenzene NE 0.007 NE <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 1,1,1-Trichloroethane 0.2 8 0.2 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.00142 <0.00100 <0.00100 1,1,2-Trichloroethane 0.005 0.00028 0.005 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 Trichloroethene 0.005 0.00049 0.005 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 1,2,4-Trimethylbenzene NE 0.056 NE <0.00250 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 1,2,3-Trimethylbenzene NE 0.055 NE <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 1,3,5-Trimethylbenzene NE 0.06 NE <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 Vinyl Chloride 0.002 0.000019 0.002 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 Xylenes, Total 10 0.19 10 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 *1,4-Dioxane - USEPA Methods 8270C- mod, 8270E-SIM & 8260D-SIM mg/L 1,4-Dioxane NE 0.00046 NE <0.000400 0.000633 J3 J4 0.0132 0.00916 0.000562 B <0.000400 <0.000400 <0.000400 <0.000400 <0.000424 0.0178 0.0184 0.0119 B Dissolved Metals - USEPA Methods 6010B/7470A mg/L Arsenic 0.05 0.000052 0.01 <0.0100 0.0131 0.264 0.233 0.297 0.301 0.18 0.214 0.247 0.332 <0.0100 0.0154 <0.0100 Barium 2 3.8 2 0.297 0.300 0.715 0.646 0.0617 0.0704 0.326 0.327 0.221 0.257 0.344 0.344 0.339 Cadmium 0.005 0.0092 0.005 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 Chromium 0.1 NE 0.1 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 Iron NE 14 NE <0.100 <0.100 0.129 <0.100 0.162 0.182 B 0.504 0.289 0.134 <0.0100 <0.100 <0.100 <0.100 Lead 0.015 0.015 0.015 <0.00600 0.00785 <0.00600 0.00716 <0.00600 0.00773 <0.00600 0.00736 <0.00600 0.00647 <0.00600 <0.00600 <0.00600 Manganese NE 0.43 NE 0.0312 0.0388 0.103 0.0724 <0.0100 <0.0100 0.0296 0.0295 0.0101 0.0149 0.497 0.485 0.477 Selenium 0.05 0.1 0.05 <0.0100 <0.0100 0.0111 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 Silver 0.1 0.094 NE <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 Mercury 0.002 0.00063 0.002 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 Notes: 1. In March 2024 approved a request that Chromalox not continue to sample for SVOCs/PAHs. 2023 and previous sampling events which contained those analytes have been removed from this table to facilitate readibility, but are available upon request. Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Green cell: Analyte detected / Yellow cell: UDEQ Screening Level Exceedance Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Table 2 2023 Groundwater Analytical Results Summary1 (Revised April 2024) 2150 N. Rulon White Boulevard Ogden, Utah 84408 Page 2 of 5 MW-11 (P&A 6- 2023) 03/29/2023 <0.0500 <0.00100 NA <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 0.0131 0.00106 0.819 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.00500 <0.0100 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00300 0.428 E 0.013 0.1 <0.00200 <0.0100 <0.100 <0.00600 0.184 0.0123 <0.00500 <0.000200 Sample ID Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels Utah Ground Water Quality Standards USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL)Date Collected VOCs - USEPA Method 8260B/8260C mg/L Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C- mod, 8270E-SIM & 8260D-SIM mg/L 1,4-Dioxane NE 0.00046 NE Dissolved Metals - USEPA Methods 6010B/7470A mg/L Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Notes: 1. In March 2024 approved a request that Chromalox not continue to sample for SVOCs/PAHs. 2023 and previous sampling events which contained those analytes have been removed from this table to facilitate readibility, but are available upon request. Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Green cell: Analyte detected / Yellow cell: UDEQ Screening Level Exceedance Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Table 2 2023 Groundwater Analytical Results Summary1 (Revised April 2024) 2150 N. Rulon White Boulevard Ogden, Utah 84408 Page 3 of 5 MW-12S MW-12D MW-13S MW-13D MW-14S MW-14D MW-15 03/28/2023 09/09/2023 03/28/2023 09/09/2023 03/29/2023 09/09/2023 03/29/2023 09/09/2023 03/30/2023 09/12/2023 03/30/2023 9/12/2023 03/28/2023 <0.0500 J4 <0.0500 <0.0500 J4 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 <0.500 <1.00 <0.0500 <0.0500 <0.0500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.0500 <1.00 0.168 0.221 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 0.00538 0.00603 <0.00500 <0.00500 <0.0500 <0.100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.0500 <0.100 <0.00500 <0.00500 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 0.188 <0.500 0.00103 <0.00100 4.590 3.730 0.218 0.132 0.0189 <0.00100 <0.00100 <0.00100 <0.00100 0.00855 0.0103 <0.00100 <0.00100 0.172 0.16 0.00125 <0.00100 <0.00100 <0.00100 0.00130 <0.00100 <0.00100 6.82 8.46 0.0206 0.0117 <0.0100 46.2 0.0781 0.0141 0.0503 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.0186 <0.0200 <0.00100 <0.00100 0.00126 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.100 <0.200 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.0500 <0.100 <0.00500 <0.00500 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.100 <0.200 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.0500 <0.100 <0.00500 <0.00500 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.125 0.132 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.0402 0.0541 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.0694 0.0411 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.144 0.138 <0.00100 <0.00100 0.296 0.268 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.00247 0.00318 <0.00100 <0.00100 0.0909 0.0961 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.00789 0.00817 <0.00100 <0.00100 0.109 0.111 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.0686 0.0699 0.001560 <0.00100 0.0134 <0.0200 0.00289 0.00258 <0.00100 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.0300 <0.0600 <0.00300 <0.00300 <0.00300 0.000822 0.00141 <0.000444 <0.000420 0.871 E 0.798 E 0.00148 B 0.00105 0.0854 0.0131 <0.000400 <0.000400 0.187 <0.0100 <0.0100 0.164 0.192 <0.0100 <0.0100 0.205 0.254 0.0264 0.0161 0.36 0.362 0.0174 0.0936 0.0859 0.145 0.134 0.023 0.0247 0.138 0.140 0.0189 0.0177 0.102 0.102 0.204 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.100 <0.100 0.129 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 0.145 0.200 B <0.100 <0.00600 <0.00600 <0.00600 0.00772 <0.00600 0.00751 <0.00600 <0.00600 0.00765 0.006 <0.00600 <0.00600 <0.00600 0.0687 0.141 0.0467 0.039 0.650 0.896 <0.0100 <0.0100 6.190 5.80 0.108 0.0877 0.253 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 Sample ID Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels Utah Ground Water Quality Standards USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL)Date Collected VOCs - USEPA Method 8260B/8260C mg/L Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C- mod, 8270E-SIM & 8260D-SIM mg/L 1,4-Dioxane NE 0.00046 NE Dissolved Metals - USEPA Methods 6010B/7470A mg/L Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Notes: 1. In March 2024 approved a request that Chromalox not continue to sample for SVOCs/PAHs. 2023 and previous sampling events which contained those analytes have been removed from this table to facilitate readibility, but are available upon request. Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Green cell: Analyte detected / Yellow cell: UDEQ Screening Level Exceedance Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Table 2 2023 Groundwater Analytical Results Summary1 (Revised April 2024) 2150 N. Rulon White Boulevard Ogden, Utah 84408 Page 4 of 5 MW-16 DUP MW-16 (MW-16 Duplicate) MW-17 MW-18 MW-19 MW-20 MW-21 MW-22 03/29/2023 03/29/2023 09/12/2023 03/28/2023 09/09/2023 03/28/2023 09/09/2023 03/29/2023 09/12/2023 03/29/2023 9/12/2023 03/29/2023 03/29/2023 <0.0500 <0.0500 <0.0500 <0.0500 J4 <0.0500 <0.0500 J4 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA #N/A NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 0.0167 0.0157 0.0128 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.00705 0.00805 <0.00100 <0.00100 0.001720 0.001770 0.00131 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.230 0.211 0.203 <0.00100 <0.00100 <0.00100 <0.00100 0.00123 0.0012 0.05400 0.0553 0.0346 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.00209 0.00212 0.00259 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 0.322 0.318 0.135 0.00308 0.00257 0.00185 0.00248 0.00159 B0.00299 B 0.0216 BQ 0.149 E 0.176 0.00508 0.00874 0.0707 0.0776 0.0905 0.0132 <0.0100 <0.0100 <0.0100 0.0425 0.0394 0.114 0.0914 0.054 0.0488 0.18 0.183 0.171 0.135 0.102 0.148 0.146 0.223 0.208 0.24 0.253 0.122 0.0739 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.00600 <0.00600 <0.00600 <0.00600 0.00601 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.0300 <0.00600 <0.00600 0.159 0.155 0.152 0.255 0.211 0.118 0.168 0.178 <0.0100 0.139 0.132 0.0308 0.0639 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 Sample ID Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels Utah Ground Water Quality Standards USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL)Date Collected VOCs - USEPA Method 8260B/8260C mg/L Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C- mod, 8270E-SIM & 8260D-SIM mg/L 1,4-Dioxane NE 0.00046 NE Dissolved Metals - USEPA Methods 6010B/7470A mg/L Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Notes: 1. In March 2024 approved a request that Chromalox not continue to sample for SVOCs/PAHs. 2023 and previous sampling events which contained those analytes have been removed from this table to facilitate readibility, but are available upon request. Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Green cell: Analyte detected / Yellow cell: UDEQ Screening Level Exceedance Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Table 2 2023 Groundwater Analytical Results Summary1 (Revised April 2024) 2150 N. Rulon White Boulevard Ogden, Utah 84408 Page 5 of 5 GMW-1 GMW-2 GMW-3 GMW-4 GMW-5 DUP (GMW-5 Duplicate)GMW-7 DUP GMW-7 (GMW-7 Duplicate) GMW-8 GP-13 03/29/2023 03/29/2023 03/29/2023 03/28/2023 09/9/2023 03/28/2023 09/09/2023 09/09/2023 03/30/2023 03/30/2023 03/28/2023 09/09/2023 03/29/2023 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA N/A N/A N/A NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00100 <0.00100 <0.00100 0.00545 0.00484 <0.00100 <0.00100 <0.00100 0.0432 0.036 0.00419 0.00497 0.00654 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.00194 B 0.00185 B <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.00233 0.0808 0.130 <0.00100 <0.00100 <0.00100 0.568 0.501 0.0124 0.0135 0.00191 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.00185 0.00172 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J4 <0.00100 J4 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.00318 0.00309 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.0254 0.0233 <0.00100 <0.00100 <0.00100 0.00292 0.00274 0.00162 0.00182 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.00297 0.00285 B <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.000400 0.000706 B 0.0104 0.0517 0.0763 0.00453 0.00301 J3 J4 0.00695 B 0.179 0.185 0.0202 0.0251 0.0528 <0.0100 0.015 0.0675 <0.0100 <0.0100 0.0271 0.0371 0.0362 0.0203 0.0181 <0.0100 <0.0100 <0.0100 0.158 0.223 0.169 0.135 0.133 0.290 0.276 0.276 0.207 0.206 0.0421 0.0447 0.252 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 1.55 <0.0100 <0.0100 <0.0100 <0.0100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.0100 6.37 <0.100 <0.100 <0.100 <0.100 <0.00600 <0.00600 <0.00600 <0.00600 0.00605 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.0100 0.355 0.26 <0.0100 0.0243 0.520 0.533 0.535 0.442 0.236 0.0749 0.446 0.185 0.0156 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 Sample ID Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels Utah Ground Water Quality Standards USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL)Date Collected VOCs - USEPA Method 8260B/8260C mg/L Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C- mod, 8270E-SIM & 8260D-SIM mg/L 1,4-Dioxane NE 0.00046 NE Dissolved Metals - USEPA Methods 6010B/7470A mg/L Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Notes: 1. In March 2024 approved a request that Chromalox not continue to sample for SVOCs/PAHs. 2023 and previous sampling events which contained those analytes have been removed from this table to facilitate readibility, but are available upon request. Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Green cell: Analyte detected / Yellow cell: UDEQ Screening Level Exceedance Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Data Quality Usability Summary Groundwater Sampling Events March 2023 to September 2023 Chromalox, Inc., Ogden, Utah VCP No. 073 Five data packages from Pace Analytical were reviewed for the analysis of groundwater samples collected between March 28, 2023, and September 7, 2023, at the Chromalox facility in Ogden, Utah. Data were reviewed for conformance to the requirements of the Quality Assurance Project Plan (QAPP) adopted for site sampling in June 2012. The five data packages reviewed were conducted by Pace Analytical, Mount Juliet, Tennessee. Pace Analytical is NELAC accredited by National Environmental Laboratory Accreditation Program (NELAP) (Utah, TN000032021-11). Intended Use of Data: To provide current data on concentrations of chemicals of concern (COCs) in groundwater at the affected property. Project Objectives: The project objectives were to obtain laboratory analysis of COCs in groundwater at quantitation limits below the applicable Utah Department of Environmental Quality (UDEQ) voluntary cleanup program and use of EPA’s Regional Screening Levels or MCLs and in accordance with quality assurance/quality control requirements of UDEQ. Samples Evaluated: A total of approximately 53 samples were reviewed as part of this DUS. The samples have been collected over the course of the 2023 Bi-Annual GW Monitoring Investigation (March 2023 to September 2023) and include approximately: •49 groundwater samples from monitoring wells •4 duplicates from groundwater samples Table 10-1 lists the client sample identifications for each laboratory report (field identifications) cross- referenced to laboratory sample identifications, date sampled, and media sampled. Chain-of-Custody, Sample Preservation and Holding Times: Samples were evaluated for agreement with the Chain-of-Custody (COC). The field identifications on the COC were cross-referenced to laboratory identifications and corresponding QC data. All samples were received in the appropriate containers and in good condition and met the laboratory’s acceptance criteria for temperature. The samples were received in good condition and properly preserved on ice. The contract laboratory correctly conducted analyses for chemicals on the COC. Samples were extracted and analysed within specified holding times. Analytical Results: Analytical results for the listed samples are reported on milligram per liter basis. Non- detected results are reported as the value of the sample quantitation limit (SQL). Qualified data are reported in Table 10-2. All anomalies were discussed in the case narrative and QC data summaries associated with each data package. Accuracy - Accuracy is the degree of mutual agreement between an individual measurement and a reference accepted as a true value. Accuracy can be assessed using MS/MSD, lab control samples (LCS), calibration standard, laboratory, field blanks and spiked environmental samples. When reviewing the analytical data packages the following observations are made: • Calibrations: A few of the LCS were flagged with E, the analyte concentration exceeds the upper limit of the calibration range of the instrument established by the initial calibration (ICAL). None of the project samples were qualified regarding calibrations. • Surrogate Recovery Data: As mentioned above, a minor number of analytes in the associated data package LCSs recovered outside of laboratory recovery standards. • Internal Standards: Internal standards were not reported in any of the data packages, and it appears they were within acceptable limits. • Matrix Spike (MS)/Matrix Spike Duplicate (MSD): As mentioned above, a minor number of analytes in the associated data package LCSs were outside of MS/MSD laboratory control limits for percent recovery. • Method Quantitation Limits: Method quantitation limit data met acceptance limits. • Interference Check Standard: Interference check standard recoveries were determined acceptable by the laboratory. • Field Procedures: Groundwater samples were collected in accordance with RPS SOPs and approved scopes of work. Data was reviewed and validated as described in the QAPP and the results of the review/validation are discussed in this DUS. The following laboratory submittals were examined: • Sample Summary: A review of the sample summary portion of each report revealed that each sample was properly logged in and the requested methods and analyte groupings were noted. • Case Narrative: The case narrative of each of the sample reporting packages note that the samples were properly received within temperature and holding times. No exceptions to quality control were noted and no exception reports were provided. The above review was followed by an evaluation of whether or not the Data Quality Objectives (DQOs) were met. The DQOs are as follows: Precision - Precision is a measure of the reproducibility (mutual agreement) of individual measurement under a similar set of conditions. The overall data precision of a sampling event has a sampling and an analytical component and will be assessed by replicate measurements of field and laboratory duplicate samples. The routine comparison of precision is measured by the relative percent difference (RPD) between duplicate sample measurements. Field duplicates access the precision for the field sample collection and management system. Laboratory duplicates or matrix spike/matrix spike duplicate (MS/MSD) samples are used to evaluate laboratory precision. •Field Duplicate Data: Field duplicate precision comparisons and calculations were performed for four groundwater samples and the associated duplicates. Duplicates are blind to the laboratory. •Dup MW-16 (3/29/2023) is a duplicate sample to MW-16; •Dup GMW-7 (3/30/23) is a duplicate sample to GMW-7; •Dup GMW-5 (9/6/2023) is a duplicate sample to GMW-5; and •Dup MW-10B (9/7/2023) is a duplicate sample to MW-10B. All duplicate sets, most analytes where below the detection limits and the results or SQLs were mostly identical with their matching sample. Analytes detected were deemed acceptable and passed the RPD% criteria (Table 10-2). One analyte in groundwater duplicate set GMW-5, and three analytes in duplicate set GMW-7 did not meet the threshold of being acceptable because the calculated RPD% was greater than 50% These failures appear to be the result of: •The inherent uncertainty of creating field duplicate groundwater samples. •Results with estimated results are acceptable. The laboratory did not mention precision issues in any of the five laboratory package narratives and the field duplicate samples had showed accurate reproducibility. Therefore, it is judged that precision is within acceptable limits for the two sampling events. Representativeness - Representativeness expresses the degree to which sample data accurately and precisely describe the characteristics of a population of samples, parameter variations at a sampling point, on environmental conditions they intend to represent. Representativeness is a qualitative parameter that is primarily concerned with the proper design of the sampling program and will be ensured using established field and laboratory procedures and their consistent application. •There were no unexpected COCs detected. Conversely, except for accounting for known contaminant degradation and natural attenuation, there were no COCs that are typically in the groundwater at the site and were absent. Comparability – Comparability is a qualitative parameter expressing the confidence that one data set is comparable with another. Sample data will be comparable for similar samples collected under like conditions. This goal is achieved using standard techniques to collect and analyze representative samples and reporting analytical results with appropriate units. • The data is considered comparable to past sample results in the same monitoring wells and collected under the same conditions. There were no unexpected COCs detected. Conversely, except for accounting for known contaminant degradation and natural attenuation, there were no COCs that are typically in the groundwater at the site and were absent. Completeness - Completeness is a measure of the amount of valid data obtained from a measurement system compared with the amount that was expected to be obtained under normal conditions. To be considered complete, the data set must contain all analytical results and data specified for the project. • The sampling effort is considered 100% complete and all samples expected and validated were delivered. Sensitivity - Sensitivity is expressed in the form of the method detection limit (MDL) or quantitation limit for the analytical method selected. Quantitation limits, however, reflect the influences of the sample matrix on method sensitivity and are typically higher than detection limits. Quantitation limits indicate the amount of material needed to produce an instrument response that can be routinely identified and reliably quantified. For the purposes of site characterization, concentrations may be detected at or below laboratory quantitation limits for some methods; therefore, laboratory will provide results to the sensitivity of the MDL with appropriate data qualifiers. The reporting limits (RL) are the level to which data are reported administratively for a specific test method and/or sample. The laboratory maintains RLs higher than MDLs. The RL is considered the same as sample quantitation limit (SQL). ECS Lab Sciences QAM summarizes DLs and RLs for various parameters. All RL or MDLs must at a minimum meet the RSL or MCL screening levels for the evaluation. • The reported analytical data in all five of the laboratory data packages is considered sensitive in that both the MDLs and RLs is lower than the corresponding RSL or MCL. Summary: The results of supporting quality control analyses (QC) were summarized on the Laboratory Review Checklists (LRCs), Exception Reports (ERs), and in the case narratives, all of which were included in this review. The groundwater data was determined usable for the purpose of determining COC concentrations at the affected property. Except as previously noted, the LRCs, associated ERs, and reportable data included in this review are included with each laboratory report of the Chromalox 2023 Bi-Annual Groundwater Monitoring Reports. Lab ID Sample ID Sample Date Matrix L1599335-07 MW-1 3/28/2023 Groundwater L1653392-01 MW-1 9/9/2023 Groundwater L1599335-12 MW-5 3/28/2023 Groundwater L1653392-05 MW-5 9/9/2023 Groundwater L1600021-01 MW-7 3/29/2023 Groundwater L1653392-06 MW-7 9/9/2023 Groundwater L1599335-09 MW-8 3/28/2023 Groundwater L1653392-13 MW-8 9/9/2023 Groundwater L1599335-05 MW-9 3/28/2023 Groundwater L1653392-15 MW-9 9/9/2023 Groundwater L1600021-06 MW-10B 3/29/2023 Groundwater L1654128-04 MW-10B 9/12/2023 Groundwater L1654128-07 (MW-10B) DUP 9/12/2023 Groundwater L1600021-13 MW-11 (P&A)3/29/2023 Groundwater L1599335-02 MW-12S 3/28/2023 Groundwater L1653392-08 MW-12S 9/9/2023 Groundwater L1599335-01 MW-12D 3/28/2023 Groundwater L1653392-07 MW-12D 9/9/2023 Groundwater L1600021-10 MW-13S 3/29/2023 Groundwater L1653392-13S MW-13S 9/9/2023 Groundwater L1600021-09 MW-13D 3/29/2023 Groundwater L1653392-11 MW-13D 9/9/2023 Groundwater L1600531-01 MW-14S 3/30/2023 Groundwater L1654128-03 MW-14S 9/12/2023 Groundwater L1600531-02 MW-14D 3/30/2023 Groundwater L1654128-02 MW-14D 9/12/2023 Groundwater L1599335-10 MW-15 3/28/2023 Groundwater L1600021-03 MW-16 3/29/2023 Groundwater L1600021-04 (MW-16) DUP 3/29/2023 Groundwater L1654128-05 MW-16 9/12/2023 Groundwater L1599335-03 MW-17 3/28/2023 Groundwater L1653392-09 MW-17 9/9/2023 Groundwater L1599335-04 MW-18 3/28/2023 Groundwater L1653392-10 MW-18 9/9/2023 Groundwater L1600021-12 MW-19 3/29/2023 Groundwater L1654128-06 MW-19 9/12/2023 Groundwater L1600021-07 MW-20 3/29/2023 Groundwater L1654128-01 MW-20 9/12/2023 Groundwater L1600021-14 MW-21 3/29/2023 Groundwater L1600021-11 MW-22 3/29/2023 Groundwater L1600021-08 GMW-1 3/29/2023 Groundwater L1600021-15 GMW-2 3/29/2023 Groundwater L1600021-02 GMW-3 3/29/2023 Groundwater L1599335-11 GMW-4 3/28/2023 Groundwater L1653392-04 GMW-4 9/9/2023 Groundwater L1599335-08 GMW-5 3/28/2023 Groundwater L1653392-02 GMW-5 9/9/2023 Groundwater L1653392-03 (GMW-5) DUP 9/9/2023 Groundwater L1600531-03 GMW-7 3/30/2023 Groundwater L1600531-04 (GMW-7) DUP 3/30/2023 Groundwater L1599335-06 GMW-8 3/28/2023 Groundwater L1653392-14 GMW-8 9/9/2023 Groundwater L1600021-05 GP-13 3/29/2023 Groundwater Table 10-1 Field-Lab Cross Reference Dlubak Glass Company Table 10-2 (GMW-5) Field Precision Dlubak Glass Company Analyte Sample Result Duplicate Result RPD Qualified VOCs - USEPA Method 8260/8260C -------- Acetone 0.0500 0.0500 0.00%A Benzene 0.00100 0.00100 0.00%A Carbon Disulfide N/A N/A ---- Carbon Tetrachloride 0.00100 0.00100 0.00%A Chlorobenzene 0.00100 0.00100 0.00%A Chloroethane 0.00500 0.00500 0.00%A Chloroform 0.00500 0.00500 0.00%A Dichlorodifluoromethane 0.00500 0.00500 0.00%A 1,1-Dichloroethane 0.00100 0.00100 0.00%A 1,2-Dichloroethane 0.00100 0.00100 0.00%A 1,1-Dichloroethene 0.00100 0.00100 0.00%A Cis-1,2-Dichloroethene 0.00100 0.00100 0.00%A Trans-1,2-Dichloroethene 0.00100 0.00100 0.00%A Di-Isopropyl Ether 0.00100 0.00100 0.00%A Ethylbenzene 0.00100 0.00100 0.00%A p-Isopropyltoluene 0.00100 0.00100 0.00%A 2-Butanone (MEK)0.0100 0.0100 0.00%A Methylene Chloride 0.00500 0.00500 0.00%A 4-Methyl-2-Pentanone (MIBK)0.0100 0.0100 0.00%A Naphthalene 0.00500 0.00500 0.00%A n-Propylbenzene 0.00100 0.00100 0.00%A 1,1,2,2-Tetrachloroethane 0.00100 0.00100 0.00%A 1,1,2-Trichlorotrifluoroethane 0.00100 0.00100 0.00%A Tetrachloroethene 0.00100 0.00100 0.00%A Toluene 0.00100 0.00100 0.00%A 1,2,3-Trichlorobenzene 0.00100 0.00100 0.00%A 1,1,1-Trichloroethane 0.00100 0.00100 0.00%A 1,1,2-Trichloroethane 0.00100 0.00100 0.00%A Trichloroethene 0.00100 0.00100 0.00%A 1,2,4-Trimethylbenzene 0.00100 0.00100 0.00%A 1,2,3-Trimethylbenzene 0.00100 0.00100 0.00%A 1,3,5-Trimethylbenzene 0.00100 0.00100 0.00%A Vinyl Chloride 0.00100 0.00100 0.00%A Xylenes, Total 0.00300 0.00300 0.00%A 1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM -------- 1,4-Dioxane 0.00301 0.00695 79.12%N SVOCs - USEPA Method 8270C -------- Chrysene 0.00100 0.00100 0.00%A Benzo(a)anthracene 0.00100 0.00100 0.00%A Benzo(b)fluoranthene 0.00100 0.00100 0.00%A Benzo(k)fluoranthene 0.00100 0.00100 0.00%A Benzo(g,h,i)perylene 0.00100 0.00100 0.00%A Benzo(a)pyrene 0.00100 0.00100 0.00%A Dibenz(a,h)anthracene 0.00100 0.00100 0.00%A Naphthalene 0.00100 0.00100 0.00%A Benzylbutyl Phthalate 0.00300 0.00300 0.00%A Bis(2-Ethylhexyl)Phthalate 0.00300 0.00300 0.00%A Di-N-Butyl Phthalate 0.00300 0.00300 0.00%A Diethyl Phthalate 0.00300 0.00300 0.00%A Dimethyl Phthalate 0.00300 0.00300 0.00%A 2,4-Dichlorophenol 0.0100 0.0100 0.00%A 2,4-Dimethylphenol 0.0100 0.0100 0.00%A Diethyl phthalate 0.00300 0.00300 0.00%A 2-Nitrophenol 0.0100 0.0100 0.00%A Pentachlorophenol 0.0100 0.0100 0.00%A Phenol 0.0100 0.0100 0.00%A PAHs - USEPA Method 8270E-SIM -------- Anthracene 0.00100 0.00100 0.00%A Benzo(a)Anthracene 0.00100 0.00100 0.00%A Benzo(a)Pyrene 0.00100 0.00100 0.00%A Benzo(b)Fluoranthene 0.00100 0.00100 0.00%A Benzo(g,h,i)Perylene 0.00100 0.00100 0.00%A GMW-5 (L1653392-02) / DUP (L1653392-03) Table 10-2 (GMW-5) Field Precision Dlubak Glass Company Analyte Sample Result Duplicate Result RPD Qualified GMW-5 (L1653392-02) / DUP (L1653392-03) Benzo(k)Fluoranthene 0.00100 0.00100 0.00%A Chrysene 0.00100 0.00100 0.00%A Dibenz(a,h)Anthracene 0.00100 0.00100 0.00%A Fluoranthene 0.00100 0.00100 0.00%A Fluorene 0.00100 0.00100 0.00%A Naphthalene 0.00100 0.00100 0.00%A Phenanthrene 0.00100 0.00100 0.00%A Pyrene 0.00100 0.00100 0.00%A 1-Methylnaphthalene NA NA ---- 2-Methylnaphthalene NA NA ---- Dissolved Metals - USEPA Methods 6010B/7470A -------- Arsenic 0.0371 0.0362 2.46%A Barium 0.276 0.276 0.00%A Cadmium 0.00200 0.00200 0.00%A Chromium 0.0100 0.0100 0.00%A Iron 0.100 0.100 0.00%A Lead 0.00600 0.00600 0.00%A Manganese 0.533 0.535 0.37%A Selenium 0.0100 0.0100 0.00%A Silver 0.00500 0.00500 0.00%A Mercury 0.000200 0.000200 0.00%A All values in mg/L Non-detect values are set equal to the SQLs RPD = ((SR-DR)*200)/(SR+DR) A - Acceptable data <50% RPD estimated results are acceptable N - Not Acceptable data >50% RPD estimated results are acceptable Table 10-2 (GMW-7) Field Precision Dlubak Glass Company Analyte Sample Result Duplicate Result RPD Qualified VOCs - USEPA Method 8260/8260C Acetone 0.0500 0.0500 0.00%A Benzene 0.00100 0.00100 0.00%A Carbon Disulfide NA NA ---- Carbon Tetrachloride 0.00100 0.00100 0.00%A Chlorobenzene 0.00100 0.00100 0.00%A Chloroethane 0.00500 0.00500 0.00%A Chloroform 0.00500 0.00500 0.00%A Dichlorodifluoromethane 0.00500 0.00500 0.00%A 1,1-Dichloroethane 0.0432 0.036 18.18%A 1,2-Dichloroethane 0.00194 0.00185 4.75%A 1,1-Dichloroethene 0.568 0.501 12.54%A Cis-1,2-Dichloroethene 0.00185 0.00172 7.28%A Trans-1,2-Dichloroethene 0.00100 0.00100 0.00%A Di-Isopropyl Ether 0.00100 0.00100 0.00%A Ethylbenzene 0.00100 0.00100 0.00%A p-Isopropyltoluene 0.00100 0.00100 0.00%A 2-Butanone (MEK)0.0100 0.0100 0.00%A Methylene Chloride 0.00500 0.00500 0.00%A 4-Methyl-2-Pentanone (MIBK)0.0100 0.0100 0.00%A Naphthalene 0.00500 0.00500 0.00%A n-Propylbenzene 0.00100 0.00100 0.00%A 1,1,2,2-Tetrachloroethane 0.00100 0.00100 0.00%A 1,1,2-Trichlorotrifluoroethane 0.00100 0.00100 0.00%A Tetrachloroethene 0.00318 0.00309 2.87%A Toluene 0.00100 0.00100 0.00%A 1,2,3-Trichlorobenzene 0.00100 0.00100 0.00%A 1,1,1-Trichloroethane 0.00292 0.00274 6.36%A 1,1,2-Trichloroethane 0.00100 0.00100 0.00%A Trichloroethene 0.00297 0.00285 4.12%A 1,2,4-Trimethylbenzene 0.00100 0.00100 0.00%A 1,2,3-Trimethylbenzene 0.00100 0.00100 0.00%A 1,3,5-Trimethylbenzene 0.00100 0.00100 0.00%A Vinyl Chloride 0.00100 0.00100 0.00%A Xylenes, Total 0.00300 0.00300 0.00%A 1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM -------- 1,4-Dioxane 0.179 0.185 3.30%A SVOCs - USEPA Method 8270C -------- Chrysene 0.00100 0.00100 0.00%A Benzo(a)anthracene 0.00100 0.00100 0.00%A Benzo(b)fluoranthene 0.00100 0.00100 0.00%A Benzo(k)fluoranthene 0.00100 0.00100 0.00%A Benzo(g,h,i)perylene 0.00100 0.00100 0.00%A Benzo(a)pyrene 0.00100 0.00100 0.00%A Dibenz(a,h)anthracene 0.00100 0.00100 0.00%A Naphthalene 0.00500 0.00500 0.00%A Benzylbutyl Phthalate 0.00300 0.00300 0.00%A Bis(2-Ethylhexyl)Phthalate 0.00300 0.00300 0.00%A Di-N-Butyl Phthalate 0.00300 0.00300 0.00%A Diethyl Phthalate 0.00300 0.00300 0.00%A Dimethyl Phthalate 0.00300 0.00300 0.00%A 2,4-Dichlorophenol 0.0100 0.0100 0.00%A 2,4-Dimethylphenol 0.0100 0.0100 0.00%A Diethyl phthalate 0.00300 0.00300 0.00%A 2-Nitrophenol 0.0100 0.0100 0.00%A Pentachlorophenol 0.0100 0.0100 0.00%A Phenol 0.0100 0.0100 0.00%A PAHs - USEPA Method 8270E-SIM -------- Anthracene 0.00100 0.00100 0.00%A Benzo(a)Anthracene 0.00100 0.00100 0.00%A Benzo(a)Pyrene 0.00100 0.00100 0.00%A Benzo(b)Fluoranthene 0.00100 0.00100 0.00%A Benzo(g,h,i)Perylene 0.00100 0.00100 0.00%A GMW-7 (L1600531-03) / DUP (L1600531-04) Table 10-2 (GMW-7) Field Precision Dlubak Glass Company Analyte Sample Result Duplicate Result RPD Qualified GMW-7 (L1600531-03) / DUP (L1600531-04) Benzo(k)Fluoranthene 0.00100 0.00100 0.00%A Chrysene 0.00100 0.00100 0.00%A Dibenz(a,h)Anthracene 0.00100 0.00100 0.00%A Fluoranthene 0.00100 0.00100 0.00%A Fluorene 0.00100 0.00100 0.00%A Naphthalene 0.00500 0.00500 0.00%A Phenanthrene 0.00100 0.00100 0.00%A Pyrene 0.00100 0.00100 0.00%A 1-Methylnaphthalene NA NA ---- 2-Methylnaphthalene NA NA ---- Dissolved Metals - USEPA Methods 6010B/7470A -------- Arsenic 0.0203 0.0181 11.46%A Barium 0.207 0.206 0.48%A Cadmium 0.00200 0.00200 0.00%A Chromium 1.55 0.0100 197.44%N Iron 6.37 0.100 193.82%N Lead 0.00600 0.00600 0.00%A Manganese 0.442 0.236 60.77%N Selenium 0.0100 0.0100 0.00%A Silver 0.00500 0.00500 0.00%A Mercury 0.000200 0.000200 0.00%A All values in mg/L Non-detect values are set equal to the MDLs RPD = ((SR-DR)*200)/(SR+DR) A - Acceptable data <50% RPD estimated results are acceptable N - Not Acceptable data >50% RPD estimated results are acceptable Table 10-2 (MW-10B) Field Precision Dlubak Glass Company Analyte Sample Result Duplicate Result RPD Qualified VOCs - USEPA Method 8260/8260C -------- Acetone 0.0500 0.0500 0.00%A Benzene 0.00100 0.00100 0.00%A Carbon Disulfide NA NA ---- Carbon Tetrachloride 0.00100 0.00100 0.00%A Chlorobenzene 0.00100 0.00100 0.00%A Chloroethane 0.00500 0.00500 0.00%A Chloroform 0.00500 0.00500 0.00%A Dichlorodifluoromethane 0.00500 0.00500 0.00%A 1,1-Dichloroethane 0.00371 0.00445 18.14%A 1,2-Dichloroethane 0.00100 0.00100 0.00%A 1,1-Dichloroethene 0.0355 0.0357 0.56%A Cis-1,2-Dichloroethene 0.00100 0.00100 0.00%A Trans-1,2-Dichloroethene 0.00100 0.00100 0.00%A Di-Isopropyl Ether 0.00100 0.00100 0.00%A Ethylbenzene 0.00100 0.00100 0.00%A p-Isopropyltoluene 0.00100 0.00100 0.00%A 2-Butanone (MEK)0.0100 0.0100 0.00%A Methylene Chloride 0.00500 0.00500 0.00%A 4-Methyl-2-Pentanone (MIBK)0.0100 0.0100 0.00%A Naphthalene 0.00500 0.00500 0.00%A n-Propylbenzene 0.00100 0.00100 0.00%A 1,1,2,2-Tetrachloroethane 0.00100 0.00100 0.00%A 1,1,2-Trichlorotrifluoroethane 0.00100 0.00100 0.00%A Tetrachloroethene 0.00100 0.00100 0.00%A Toluene 0.00100 0.00100 0.00%A 1,2,3-Trichlorobenzene 0.00100 0.00100 0.00%A 1,1,1-Trichloroethane 0.00100 0.00100 0.00%A 1,1,2-Trichloroethane 0.00100 0.00100 0.00%A Trichloroethene 0.00100 0.00100 0.00%A 1,2,4-Trimethylbenzene 0.00100 0.00100 0.00%A 1,2,3-Trimethylbenzene 0.00100 0.00100 0.00%A 1,3,5-Trimethylbenzene 0.00100 0.00100 0.00%A Vinyl Chloride 0.00100 0.00100 0.00%A Xylenes, Total 0.00300 0.00300 0.00%A 1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM -------- 1,4-Dioxane 0.0184 0.0119 42.90%A SVOCs - USEPA Method 8270C -------- Chrysene 0.00100 0.00100 0.00%A Benzo(a)anthracene 0.00100 0.00100 0.00%A Benzo(b)fluoranthene 0.00100 0.00100 0.00%A Benzo(k)fluoranthene 0.00100 0.00100 0.00%A Benzo(g,h,i)perylene 0.00100 0.00100 0.00%A Benzo(a)pyrene 0.00100 0.00100 0.00%A Dibenz(a,h)anthracene 0.00100 0.00100 0.00%A Naphthalene 0.00100 0.00100 0.00%A Benzylbutyl Phthalate 0.00300 0.00300 0.00%A Bis(2-Ethylhexyl)Phthalate 0.00300 0.00300 0.00%A Di-N-Butyl Phthalate 0.00300 0.00300 0.00%A Diethyl Phthalate 0.00300 0.00300 0.00%A Dimethyl Phthalate 0.00300 0.00300 0.00%A 2,4-Dichlorophenol 0.0100 0.0100 0.00%A 2,4-Dimethylphenol 0.0100 0.0100 0.00%A Diethyl phthalate 0.00300 0.00300 0.00%A 2-Nitrophenol 0.0100 0.0100 0.00%A Pentachlorophenol 0.0100 0.0100 0.00%A Phenol 0.0100 0.0100 0.00%A PAHs - USEPA Method 8270E-SIM -------- Anthracene 0.00100 0.00100 0.00%A Benzo(a)Anthracene 0.00100 0.00100 0.00%A Benzo(a)Pyrene 0.00100 0.00100 0.00%A Benzo(b)Fluoranthene 0.00100 0.00100 0.00%A Benzo(g,h,i)Perylene 0.00100 0.00100 0.00%A MW-10B (L1654128-04) / DUP (L1654128-07) Table 10-2 (MW-10B) Field Precision Dlubak Glass Company Analyte Sample Result Duplicate Result RPD Qualified MW-10B (L1654128-04) / DUP (L1654128-07) Benzo(k)Fluoranthene 0.00100 0.00100 0.00%A Chrysene 0.00100 0.00100 0.00%A Dibenz(a,h)Anthracene 0.00100 0.00100 0.00%A Fluoranthene 0.00100 0.00100 0.00%A Fluorene 0.00100 0.00100 0.00%A Naphthalene 0.00100 0.00100 0.00%A Phenanthrene 0.00100 0.00100 0.00%A Pyrene 0.00100 0.00100 0.00%A 1-Methylnaphthalene NA NA ---- 2-Methylnaphthalene NA NA ---- Dissolved Metals - USEPA Methods 6010B/7470A -------- Arsenic 0.0154 0.01 42.52%A Barium 0.344 0.339 1.46%A Cadmium 0.00200 0.00200 0.00%A Chromium 0.0100 0.0100 0.00%A Iron 0.100 0.100 0.00%A Lead 0.00600 0.00600 0.00%A Manganese 0.485 0.477 1.66%A Selenium 0.0100 0.0100 0.00%A Silver 0.00500 0.00500 0.00%A Mercury 0.000200 0.000200 0.00%A All values in mg/L Non-detect values are set equal to the MDLs RPD = ((SR-DR)*200)/(SR+DR) A - Acceptable data <50% RPD estimated results are acceptable N - Not Acceptable data >50% RPD estimated results are acceptable Table 10-2 (MW-16) Field Precision Dlubak Glass Company Analyte Sample Result Duplicate Result RPD Qualified VOCs - USEPA Method 8260/8260C -------- Acetone 0.0500 0.0500 0.00%A Benzene 0.00100 0.00100 0.00%A Carbon Disulfide NA NA ---- Carbon Tetrachloride 0.00100 0.00100 0.00%A Chlorobenzene 0.00100 0.00100 0.00%A Chloroethane 0.00500 0.00500 0.00%A Chloroform 0.00500 0.00500 0.00%A Dichlorodifluoromethane 0.00500 0.00500 0.00%A 1,1-Dichloroethane 0.0167 0.0157 6.17%A 1,2-Dichloroethane 0.00172 0.00177 2.87%A 1,1-Dichloroethene 0.23 0.211 8.62%A Cis-1,2-Dichloroethene 0.00100 0.00100 0.00%A Trans-1,2-Dichloroethene 0.00100 0.00100 0.00%A Di-Isopropyl Ether 0.00100 0.00100 0.00%A Ethylbenzene 0.00100 0.00100 0.00%A p-Isopropyltoluene 0.00100 0.00100 0.00%A 2-Butanone (MEK)0.0100 0.0100 0.00%A Methylene Chloride 0.00500 0.00500 0.00%A 4-Methyl-2-Pentanone (MIBK)0.0100 0.0100 0.00%A Naphthalene 0.00500 0.00500 0.00%A n-Propylbenzene 0.00100 0.00100 0.00%A 1,1,2,2-Tetrachloroethane 0.00100 0.00100 0.00%A 1,1,2-Trichlorotrifluoroethane 0.00100 0.00100 0.00%A Tetrachloroethene 0.00100 0.00100 0.00%A Toluene 0.00100 0.00100 0.00%A 1,2,3-Trichlorobenzene 0.00100 0.00100 0.00%A 1,1,1-Trichloroethane 0.00100 0.00100 0.00%A 1,1,2-Trichloroethane 0.00100 0.00100 0.00%A Trichloroethene 0.00100 0.00100 0.00%A 1,2,4-Trimethylbenzene 0.00100 0.00100 0.00%A 1,2,3-Trimethylbenzene 0.00100 0.00100 0.00%A 1,3,5-Trimethylbenzene 0.00100 0.00100 0.00%A Vinyl Chloride 0.00209 0.00212 1.43%A Xylenes, Total 0.00300 0.00300 0.00%A 1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM -------- 1,4-Dioxane 0.322 0.318 1.25%A SVOCs - USEPA Method 8270C -------- Chrysene 0.00100 0.00100 0.00%A Benzo(a)anthracene 0.00100 0.00100 0.00%A Benzo(b)fluoranthene 0.00100 0.00100 0.00%A Benzo(k)fluoranthene 0.00100 0.00100 0.00%A Benzo(g,h,i)perylene 0.00100 0.00100 0.00%A Benzo(a)pyrene 0.00100 0.00100 0.00%A Dibenz(a,h)anthracene 0.00100 0.00100 0.00%A Naphthalene 0.00500 0.00500 0.00%A Benzylbutyl Phthalate 0.00300 0.00300 0.00%A Bis(2-Ethylhexyl)Phthalate 0.00300 0.00300 0.00%A Di-N-Butyl Phthalate 0.00300 0.00300 0.00%A Diethyl Phthalate 0.00300 0.00300 0.00%A Dimethyl Phthalate 0.00300 0.00300 0.00%A 2,4-Dichlorophenol 0.0100 0.0100 0.00%A 2,4-Dimethylphenol 0.0100 0.0100 0.00%A Diethyl phthalate 0.00300 0.00300 0.00%A 2-Nitrophenol 0.0100 0.0100 0.00%A Pentachlorophenol 0.0100 0.0100 0.00%A Phenol 0.0100 0.0100 0.00%A PAHs - USEPA Method 8270E-SIM -------- Anthracene 0.00100 0.00100 0.00%A Benzo(a)Anthracene 0.00100 0.00100 0.00%A Benzo(a)Pyrene 0.00100 0.00100 0.00%A Benzo(b)Fluoranthene 0.00100 0.00100 0.00%A Benzo(g,h,i)Perylene 0.00100 0.00100 0.00%A MW-16 (L1600021-03) / DUP (L1600021-04) Table 10-2 (MW-16) Field Precision Dlubak Glass Company Analyte Sample Result Duplicate Result RPD Qualified MW-16 (L1600021-03) / DUP (L1600021-04) Benzo(k)Fluoranthene 0.00100 0.00100 0.00%A Chrysene 0.00100 0.00100 0.00%A Dibenz(a,h)Anthracene 0.00100 0.00100 0.00%A Fluoranthene 0.00100 0.00100 0.00%A Fluorene 0.00100 0.00100 0.00%A Naphthalene 0.00500 0.00500 0.00%A Phenanthrene 0.00100 0.00100 0.00%A Pyrene 0.00100 0.00100 0.00%A 1-Methylnaphthalene NA NA ---- 2-Methylnaphthalene NA NA ---- Dissolved Metals - USEPA Methods 6010B/7470A -------- Arsenic 0.0707 0.0776 9.31%A Barium 0.18 0.183 1.65%A Cadmium 0.00200 0.00200 0.00%A Chromium 0.0100 0.0100 0.00%A Iron 0.100 0.100 0.00%A Lead 0.00600 0.00600 0.00%A Manganese 0.159 0.155 2.55%A Selenium 0.0100 0.0100 0.00%A Silver 0.00500 0.00500 0.00%A Mercury 0.000200 0.000200 0.00%A All values in mg/L Non-detect values are set equal to the MDLs RPD = ((SR-DR)*200)/(SR+DR) A - Acceptable data <50% RPD estimated results are acceptable N - Not Acceptable data >50% RPD estimated results are acceptable ANALYTICAL REPORT April 07, 2023 Tetra Tech Inc. - UT Sample Delivery Group:L1599335 Samples Received:03/29/2023 Project Number:221020 Description: Report To:Sarah Showalter 4750 West 2100 South Suite 400 Salt Lake City, UT 84120 Entire Report Reviewed By: April 07, 2023 [Preliminary Report] Chris Ward Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 1 of 63 April 07, 2023 Chris Ward Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 1 of 63 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 6 Sr: Sample Results 7 MW-12D L1599335-01 7 MW-12S L1599335-02 10 MW-17 L1599335-03 13 MW-18 L1599335-04 16 MW-9 L1599335-05 19 GMW-8 L1599335-06 21 MW-1 L1599335-07 23 GMW-5 L1599335-08 25 MW-8 L1599335-09 27 MW-15 L1599335-10 29 GMW-4 L1599335-11 32 MW-5 L1599335-12 35 Qc: Quality Control Summary 38 Mercury by Method 7470A 38 Metals (ICP) by Method 6010B 39 Volatile Organic Compounds (GC/MS) by Method 8260B 42 Semi Volatile Organic Compounds (GC/MS) by Method 8270C 47 Semi Volatile Organic Compounds (GC/MS) by Method 8270E 57 Gl: Glossary of Terms 58 Al: Accreditations & Locations 59 Sc: Sample Chain of Custody 60 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 2 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 2 of 63 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-12D L1599335-01 GW 03/28/23 09:40 03/29/23 09:15 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2032521 1 04/03/23 18:26 04/04/23 17:31 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/30/23 21:20 ABL Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/31/23 12:08 ABL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2034199 1 04/01/23 19:12 04/01/23 19:12 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2033242 1 04/01/23 12:17 04/01/23 22:49 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2033242 1 04/01/23 12:17 04/06/23 15:27 CCW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2032291 1.11 03/31/23 07:47 04/01/23 09:05 AED Mt. Juliet, TN Collected by Collected date/time Received date/time MW-12S L1599335-02 GW 03/28/23 10:35 03/29/23 09:15 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2032521 1 04/03/23 18:26 04/04/23 17:33 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/30/23 21:23 ABL Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/31/23 12:11 ABL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2034199 1 04/01/23 19:30 04/01/23 19:30 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2033242 1 04/01/23 12:17 04/01/23 23:10 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2033242 1 04/01/23 12:17 04/06/23 15:49 CCW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2032291 1.11 03/31/23 07:47 04/01/23 09:25 AED Mt. Juliet, TN Collected by Collected date/time Received date/time MW-17 L1599335-03 GW 03/28/23 12:00 03/29/23 09:15 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2032521 1 04/03/23 18:26 04/04/23 17:39 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/30/23 21:26 ABL Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/31/23 12:14 ABL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2034199 1 04/01/23 19:49 04/01/23 19:49 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2033242 1 04/01/23 12:17 04/01/23 23:32 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2033242 1 04/01/23 12:17 04/06/23 16:10 CCW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2032291 1 03/31/23 07:47 04/01/23 14:47 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-18 L1599335-04 GW 03/28/23 13:30 03/29/23 09:15 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2032521 1 04/03/23 18:26 04/04/23 17:41 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/30/23 21:29 ABL Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/31/23 12:22 ABL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2034199 1 04/01/23 20:09 04/01/23 20:09 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2033242 1 04/01/23 12:17 04/01/23 23:54 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2033242 1 04/01/23 12:17 04/06/23 16:31 CCW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2032291 1 03/31/23 07:47 04/01/23 15:06 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-9 L1599335-05 GW 03/28/23 14:45 03/29/23 09:15 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2032521 1 04/03/23 18:26 04/04/23 17:43 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/30/23 21:32 ABL Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/31/23 12:25 ABL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2034199 1 04/01/23 20:28 04/01/23 20:28 JAH Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 3 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 3 of 63 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-9 L1599335-05 GW 03/28/23 14:45 03/29/23 09:15 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2032291 1 03/31/23 07:47 04/01/23 15:25 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time GMW-8 L1599335-06 GW 03/28/23 15:50 03/29/23 09:15 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2032521 1 04/03/23 18:26 04/04/23 17:45 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/30/23 21:35 ABL Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/31/23 12:28 ABL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2034199 1 04/01/23 20:47 04/01/23 20:47 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2032291 1 03/31/23 07:47 04/01/23 15:45 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-1 L1599335-07 GW 03/28/23 09:48 03/29/23 09:15 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2032521 1 04/03/23 18:26 04/04/23 17:47 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/30/23 21:37 ABL Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/31/23 12:31 ABL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2034199 1 04/01/23 21:06 04/01/23 21:06 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2032291 1 03/31/23 07:47 04/01/23 16:04 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time GMW-5 L1599335-08 GW 03/28/23 11:55 03/29/23 09:15 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2032521 1 04/03/23 18:26 04/04/23 17:49 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/30/23 21:40 ABL Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/31/23 12:34 ABL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2034199 1 04/01/23 21:25 04/01/23 21:25 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2032291 1 03/31/23 07:47 04/01/23 16:23 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-8 L1599335-09 GW 03/28/23 13:10 03/29/23 09:15 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2032521 1 04/03/23 18:26 04/04/23 17:51 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/30/23 21:48 ABL Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/31/23 12:37 ABL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2034199 1 04/01/23 21:43 04/01/23 21:43 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2032291 1 03/31/23 07:47 04/01/23 12:31 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-15 L1599335-10 GW 03/28/23 13:50 03/29/23 09:15 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2032521 1 04/03/23 18:26 04/04/23 17:53 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/30/23 21:51 ABL Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/31/23 12:39 ABL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2034199 1 04/01/23 22:02 04/01/23 22:02 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2033242 1 04/01/23 12:17 04/02/23 00:15 DSH Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 4 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 4 of 63 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-15 L1599335-10 GW 03/28/23 13:50 03/29/23 09:15 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2033242 1 04/01/23 12:17 04/06/23 16:52 CCW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2032291 1 03/31/23 07:47 04/01/23 12:50 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time GMW-4 L1599335-11 GW 03/28/23 15:00 03/29/23 09:15 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2032521 1 04/03/23 18:26 04/04/23 17:55 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/30/23 21:54 ABL Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032546 1 03/30/23 10:56 03/31/23 12:42 ABL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2034199 1 04/01/23 22:21 04/01/23 22:21 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2036467 5 04/05/23 23:28 04/05/23 23:28 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2033244 1 04/01/23 12:19 04/02/23 11:57 AED Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2032291 1 03/31/23 07:47 04/01/23 13:10 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-5 L1599335-12 GW 03/28/23 16:35 03/29/23 09:15 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2032521 1 04/03/23 18:26 04/04/23 17:57 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032549 1 03/30/23 09:27 03/30/23 19:01 SPL Mt. Juliet, TN Metals (ICP) by Method 6010B WG2032549 1 03/30/23 09:27 03/31/23 00:11 ABL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2034199 1 04/01/23 22:40 04/01/23 22:40 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2036467 1 04/05/23 19:02 04/05/23 19:02 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2033244 1 04/01/23 12:19 04/02/23 12:19 AED Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2032291 1 03/31/23 07:47 04/01/23 13:29 DSH Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 5 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 5 of 63 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Chris Ward Project Manager 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 6 of 63 Chris Ward Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 6 of 63 SAMPLE RESULTS - 01 L1599335 MW-12D Collected date/time: 03/28/23 09:40 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/04/2023 17:31 WG2032521 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.164 0.0100 1 03/30/2023 21:20 WG2032546 Barium,Dissolved 0.145 0.00500 1 03/31/2023 12:08 WG2032546 Cadmium,Dissolved ND 0.00200 1 03/30/2023 21:20 WG2032546 Chromium,Dissolved ND 0.0100 1 03/30/2023 21:20 WG2032546 Iron,Dissolved 0.129 0.100 1 03/30/2023 21:20 WG2032546 Lead,Dissolved ND 0.00600 1 03/30/2023 21:20 WG2032546 Manganese,Dissolved 0.0467 0.0100 1 03/30/2023 21:20 WG2032546 Selenium,Dissolved ND 0.0100 1 03/30/2023 21:20 WG2032546 Silver,Dissolved ND 0.00500 1 03/30/2023 21:20 WG2032546 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND J4 0.0500 1 04/01/2023 19:12 WG2034199 Acrolein ND 0.0500 1 04/01/2023 19:12 WG2034199 Acrylonitrile ND 0.0100 1 04/01/2023 19:12 WG2034199 Benzene ND 0.00100 1 04/01/2023 19:12 WG2034199 Bromobenzene ND 0.00100 1 04/01/2023 19:12 WG2034199 Bromodichloromethane ND 0.00100 1 04/01/2023 19:12 WG2034199 Bromoform ND 0.00100 1 04/01/2023 19:12 WG2034199 Bromomethane ND 0.00500 1 04/01/2023 19:12 WG2034199 n-Butylbenzene ND 0.00100 1 04/01/2023 19:12 WG2034199 sec-Butylbenzene ND 0.00100 1 04/01/2023 19:12 WG2034199 tert-Butylbenzene ND 0.00100 1 04/01/2023 19:12 WG2034199 Carbon tetrachloride ND 0.00100 1 04/01/2023 19:12 WG2034199 Chlorobenzene ND 0.00100 1 04/01/2023 19:12 WG2034199 Chlorodibromomethane ND 0.00100 1 04/01/2023 19:12 WG2034199 Chloroethane ND 0.00500 1 04/01/2023 19:12 WG2034199 Chloroform ND 0.00500 1 04/01/2023 19:12 WG2034199 Chloromethane ND 0.00250 1 04/01/2023 19:12 WG2034199 2-Chlorotoluene ND 0.00100 1 04/01/2023 19:12 WG2034199 4-Chlorotoluene ND 0.00100 1 04/01/2023 19:12 WG2034199 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/01/2023 19:12 WG2034199 1,2-Dibromoethane ND 0.00100 1 04/01/2023 19:12 WG2034199 Dibromomethane ND 0.00100 1 04/01/2023 19:12 WG2034199 1,2-Dichlorobenzene ND 0.00100 1 04/01/2023 19:12 WG2034199 1,3-Dichlorobenzene ND 0.00100 1 04/01/2023 19:12 WG2034199 1,4-Dichlorobenzene ND 0.00100 1 04/01/2023 19:12 WG2034199 Dichlorodifluoromethane ND 0.00500 1 04/01/2023 19:12 WG2034199 1,1-Dichloroethane ND 0.00100 1 04/01/2023 19:12 WG2034199 1,2-Dichloroethane ND 0.00100 1 04/01/2023 19:12 WG2034199 1,1-Dichloroethene ND 0.00100 1 04/01/2023 19:12 WG2034199 cis-1,2-Dichloroethene ND 0.00100 1 04/01/2023 19:12 WG2034199 trans-1,2-Dichloroethene ND 0.00100 1 04/01/2023 19:12 WG2034199 1,2-Dichloropropane ND 0.00100 1 04/01/2023 19:12 WG2034199 1,1-Dichloropropene ND 0.00100 1 04/01/2023 19:12 WG2034199 1,3-Dichloropropane ND 0.00100 1 04/01/2023 19:12 WG2034199 cis-1,3-Dichloropropene ND 0.00100 1 04/01/2023 19:12 WG2034199 trans-1,3-Dichloropropene ND 0.00100 1 04/01/2023 19:12 WG2034199 2,2-Dichloropropane ND 0.00100 1 04/01/2023 19:12 WG2034199 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 7 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 7 of 63 SAMPLE RESULTS - 01 L1599335 MW-12D Collected date/time: 03/28/23 09:40 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/01/2023 19:12 WG2034199 Ethylbenzene ND 0.00100 1 04/01/2023 19:12 WG2034199 Hexachloro-1,3-butadiene ND 0.00100 1 04/01/2023 19:12 WG2034199 Isopropylbenzene ND 0.00100 1 04/01/2023 19:12 WG2034199 p-Isopropyltoluene ND 0.00100 1 04/01/2023 19:12 WG2034199 2-Butanone (MEK)ND 0.0100 1 04/01/2023 19:12 WG2034199 Methylene Chloride ND 0.00500 1 04/01/2023 19:12 WG2034199 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/01/2023 19:12 WG2034199 Methyl tert-butyl ether ND 0.00100 1 04/01/2023 19:12 WG2034199 Naphthalene ND 0.00500 1 04/01/2023 19:12 WG2034199 n-Propylbenzene ND 0.00100 1 04/01/2023 19:12 WG2034199 Styrene ND 0.00100 1 04/01/2023 19:12 WG2034199 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/01/2023 19:12 WG2034199 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/01/2023 19:12 WG2034199 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/01/2023 19:12 WG2034199 Tetrachloroethene ND 0.00100 1 04/01/2023 19:12 WG2034199 Toluene ND 0.00100 1 04/01/2023 19:12 WG2034199 1,2,3-Trichlorobenzene ND 0.00100 1 04/01/2023 19:12 WG2034199 1,2,4-Trichlorobenzene ND 0.00100 1 04/01/2023 19:12 WG2034199 1,1,1-Trichloroethane ND 0.00100 1 04/01/2023 19:12 WG2034199 1,1,2-Trichloroethane ND 0.00100 1 04/01/2023 19:12 WG2034199 Trichloroethene ND 0.00100 1 04/01/2023 19:12 WG2034199 Trichlorofluoromethane ND 0.00500 1 04/01/2023 19:12 WG2034199 1,2,3-Trichloropropane ND 0.00250 1 04/01/2023 19:12 WG2034199 1,2,4-Trimethylbenzene ND 0.00100 1 04/01/2023 19:12 WG2034199 1,2,3-Trimethylbenzene ND 0.00100 1 04/01/2023 19:12 WG2034199 1,3,5-Trimethylbenzene ND 0.00100 1 04/01/2023 19:12 WG2034199 Vinyl chloride ND 0.00100 1 04/01/2023 19:12 WG2034199 Xylenes, Total ND 0.00300 1 04/01/2023 19:12 WG2034199 (S) Toluene-d8 98.9 80.0-120 04/01/2023 19:12 WG2034199 (S) 4-Bromofluorobenzene 115 77.0-126 04/01/2023 19:12 WG2034199 (S) 1,2-Dichloroethane-d4 109 70.0-130 04/01/2023 19:12 WG2034199 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 04/01/2023 22:49 WG2033242 Acenaphthylene ND 0.00100 1 04/01/2023 22:49 WG2033242 Anthracene ND 0.00100 1 04/01/2023 22:49 WG2033242 Benzidine ND J4 0.0100 1 04/06/2023 15:27 WG2033242 Benzo(a)anthracene ND 0.00100 1 04/01/2023 22:49 WG2033242 Benzo(b)fluoranthene ND 0.00100 1 04/01/2023 22:49 WG2033242 Benzo(k)fluoranthene ND 0.00100 1 04/01/2023 22:49 WG2033242 Benzo(g,h,i)perylene ND 0.00100 1 04/01/2023 22:49 WG2033242 Benzo(a)pyrene ND 0.00100 1 04/01/2023 22:49 WG2033242 Bis(2-chlorethoxy)methane ND 0.0100 1 04/01/2023 22:49 WG2033242 Bis(2-chloroethyl)ether ND 0.0100 1 04/01/2023 22:49 WG2033242 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 04/01/2023 22:49 WG2033242 4-Bromophenyl-phenylether ND 0.0100 1 04/01/2023 22:49 WG2033242 2-Chloronaphthalene ND 0.00100 1 04/01/2023 22:49 WG2033242 4-Chlorophenyl-phenylether ND 0.0100 1 04/01/2023 22:49 WG2033242 Chrysene ND 0.00100 1 04/01/2023 22:49 WG2033242 Dibenz(a,h)anthracene ND 0.00100 1 04/01/2023 22:49 WG2033242 1,2-Dichlorobenzene ND 0.0100 1 04/01/2023 22:49 WG2033242 1,3-Dichlorobenzene ND 0.0100 1 04/01/2023 22:49 WG2033242 1,4-Dichlorobenzene ND 0.0100 1 04/01/2023 22:49 WG2033242 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 8 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 8 of 63 SAMPLE RESULTS - 01 L1599335 MW-12D Collected date/time: 03/28/23 09:40 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 04/01/2023 22:49 WG2033242 2,4-Dinitrotoluene ND 0.0100 1 04/01/2023 22:49 WG2033242 2,6-Dinitrotoluene ND 0.0100 1 04/01/2023 22:49 WG2033242 Fluoranthene ND 0.00100 1 04/01/2023 22:49 WG2033242 Fluorene ND 0.00100 1 04/01/2023 22:49 WG2033242 Hexachlorobenzene ND 0.00100 1 04/01/2023 22:49 WG2033242 Hexachloro-1,3-butadiene ND 0.0100 1 04/01/2023 22:49 WG2033242 Hexachlorocyclopentadiene ND 0.0100 1 04/01/2023 22:49 WG2033242 Hexachloroethane ND 0.0100 1 04/01/2023 22:49 WG2033242 Indeno(1,2,3-cd)pyrene ND 0.00100 1 04/01/2023 22:49 WG2033242 Isophorone ND 0.0100 1 04/01/2023 22:49 WG2033242 Naphthalene ND 0.00100 1 04/01/2023 22:49 WG2033242 Nitrobenzene ND 0.0100 1 04/01/2023 22:49 WG2033242 n-Nitrosodimethylamine ND 0.0100 1 04/01/2023 22:49 WG2033242 n-Nitrosodiphenylamine ND 0.0100 1 04/01/2023 22:49 WG2033242 n-Nitrosodi-n-propylamine ND 0.0100 1 04/01/2023 22:49 WG2033242 Phenanthrene ND 0.00100 1 04/01/2023 22:49 WG2033242 Benzylbutyl phthalate ND 0.00300 1 04/01/2023 22:49 WG2033242 Bis(2-ethylhexyl)phthalate ND 0.00300 1 04/01/2023 22:49 WG2033242 Di-n-butyl phthalate ND 0.00300 1 04/01/2023 22:49 WG2033242 Diethyl phthalate ND 0.00300 1 04/01/2023 22:49 WG2033242 Dimethyl phthalate ND 0.00300 1 04/01/2023 22:49 WG2033242 Di-n-octyl phthalate ND 0.00300 1 04/01/2023 22:49 WG2033242 Pyrene ND 0.00100 1 04/01/2023 22:49 WG2033242 1,2,4-Trichlorobenzene ND 0.0100 1 04/01/2023 22:49 WG2033242 4-Chloro-3-methylphenol ND 0.0100 1 04/01/2023 22:49 WG2033242 2-Chlorophenol ND 0.0100 1 04/01/2023 22:49 WG2033242 2,4-Dichlorophenol ND 0.0100 1 04/01/2023 22:49 WG2033242 2,4-Dimethylphenol ND 0.0100 1 04/01/2023 22:49 WG2033242 4,6-Dinitro-2-methylphenol ND 0.0100 1 04/01/2023 22:49 WG2033242 2,4-Dinitrophenol ND 0.0100 1 04/01/2023 22:49 WG2033242 2-Nitrophenol ND 0.0100 1 04/01/2023 22:49 WG2033242 4-Nitrophenol ND 0.0100 1 04/01/2023 22:49 WG2033242 Pentachlorophenol ND 0.0100 1 04/01/2023 22:49 WG2033242 Phenol ND 0.0100 1 04/01/2023 22:49 WG2033242 2,4,6-Trichlorophenol ND 0.0100 1 04/01/2023 22:49 WG2033242 (S) 2-Fluorophenol 25.9 10.0-120 04/06/2023 15:27 WG2033242 (S) 2-Fluorophenol 25.9 10.0-120 04/01/2023 22:49 WG2033242 (S) Phenol-d5 16.8 10.0-120 04/01/2023 22:49 WG2033242 (S) Phenol-d5 16.0 10.0-120 04/06/2023 15:27 WG2033242 (S) Nitrobenzene-d5 53.5 10.0-127 04/01/2023 22:49 WG2033242 (S) Nitrobenzene-d5 52.3 10.0-127 04/06/2023 15:27 WG2033242 (S) 2-Fluorobiphenyl 63.3 10.0-130 04/06/2023 15:27 WG2033242 (S) 2-Fluorobiphenyl 58.7 10.0-130 04/01/2023 22:49 WG2033242 (S) 2,4,6-Tribromophenol 78.5 10.0-155 04/01/2023 22:49 WG2033242 (S) 2,4,6-Tribromophenol 54.0 10.0-155 04/06/2023 15:27 WG2033242 (S) p-Terphenyl-d14 64.7 10.0-128 04/01/2023 22:49 WG2033242 (S) p-Terphenyl-d14 58.2 10.0-128 04/06/2023 15:27 WG2033242 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane ND 0.000444 1.11 04/01/2023 09:05 WG2032291 (S) Nitrobenzene-d5 46.8 10.0-120 04/01/2023 09:05 WG2032291 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 9 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 9 of 63 SAMPLE RESULTS - 02 L1599335 MW-12S Collected date/time: 03/28/23 10:35 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/04/2023 17:33 WG2032521 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 03/30/2023 21:23 WG2032546 Barium,Dissolved 0.0936 0.00500 1 03/31/2023 12:11 WG2032546 Cadmium,Dissolved ND 0.00200 1 03/30/2023 21:23 WG2032546 Chromium,Dissolved ND 0.0100 1 03/30/2023 21:23 WG2032546 Iron,Dissolved ND 0.100 1 03/30/2023 21:23 WG2032546 Lead,Dissolved ND 0.00600 1 03/30/2023 21:23 WG2032546 Manganese,Dissolved 0.0687 0.0100 1 03/30/2023 21:23 WG2032546 Selenium,Dissolved ND 0.0100 1 03/30/2023 21:23 WG2032546 Silver,Dissolved ND 0.00500 1 03/30/2023 21:23 WG2032546 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND J4 0.0500 1 04/01/2023 19:30 WG2034199 Acrolein ND 0.0500 1 04/01/2023 19:30 WG2034199 Acrylonitrile ND 0.0100 1 04/01/2023 19:30 WG2034199 Benzene ND 0.00100 1 04/01/2023 19:30 WG2034199 Bromobenzene ND 0.00100 1 04/01/2023 19:30 WG2034199 Bromodichloromethane ND 0.00100 1 04/01/2023 19:30 WG2034199 Bromoform ND 0.00100 1 04/01/2023 19:30 WG2034199 Bromomethane ND 0.00500 1 04/01/2023 19:30 WG2034199 n-Butylbenzene ND 0.00100 1 04/01/2023 19:30 WG2034199 sec-Butylbenzene ND 0.00100 1 04/01/2023 19:30 WG2034199 tert-Butylbenzene ND 0.00100 1 04/01/2023 19:30 WG2034199 Carbon tetrachloride ND 0.00100 1 04/01/2023 19:30 WG2034199 Chlorobenzene ND 0.00100 1 04/01/2023 19:30 WG2034199 Chlorodibromomethane ND 0.00100 1 04/01/2023 19:30 WG2034199 Chloroethane ND 0.00500 1 04/01/2023 19:30 WG2034199 Chloroform ND 0.00500 1 04/01/2023 19:30 WG2034199 Chloromethane ND 0.00250 1 04/01/2023 19:30 WG2034199 2-Chlorotoluene ND 0.00100 1 04/01/2023 19:30 WG2034199 4-Chlorotoluene ND 0.00100 1 04/01/2023 19:30 WG2034199 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/01/2023 19:30 WG2034199 1,2-Dibromoethane ND 0.00100 1 04/01/2023 19:30 WG2034199 Dibromomethane ND 0.00100 1 04/01/2023 19:30 WG2034199 1,2-Dichlorobenzene ND 0.00100 1 04/01/2023 19:30 WG2034199 1,3-Dichlorobenzene ND 0.00100 1 04/01/2023 19:30 WG2034199 1,4-Dichlorobenzene ND 0.00100 1 04/01/2023 19:30 WG2034199 Dichlorodifluoromethane ND 0.00500 1 04/01/2023 19:30 WG2034199 1,1-Dichloroethane ND 0.00100 1 04/01/2023 19:30 WG2034199 1,2-Dichloroethane ND 0.00100 1 04/01/2023 19:30 WG2034199 1,1-Dichloroethene ND 0.00100 1 04/01/2023 19:30 WG2034199 cis-1,2-Dichloroethene ND 0.00100 1 04/01/2023 19:30 WG2034199 trans-1,2-Dichloroethene ND 0.00100 1 04/01/2023 19:30 WG2034199 1,2-Dichloropropane ND 0.00100 1 04/01/2023 19:30 WG2034199 1,1-Dichloropropene ND 0.00100 1 04/01/2023 19:30 WG2034199 1,3-Dichloropropane ND 0.00100 1 04/01/2023 19:30 WG2034199 cis-1,3-Dichloropropene ND 0.00100 1 04/01/2023 19:30 WG2034199 trans-1,3-Dichloropropene ND 0.00100 1 04/01/2023 19:30 WG2034199 2,2-Dichloropropane ND 0.00100 1 04/01/2023 19:30 WG2034199 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 10 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 10 of 63 SAMPLE RESULTS - 02 L1599335 MW-12S Collected date/time: 03/28/23 10:35 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/01/2023 19:30 WG2034199 Ethylbenzene ND 0.00100 1 04/01/2023 19:30 WG2034199 Hexachloro-1,3-butadiene ND 0.00100 1 04/01/2023 19:30 WG2034199 Isopropylbenzene ND 0.00100 1 04/01/2023 19:30 WG2034199 p-Isopropyltoluene ND 0.00100 1 04/01/2023 19:30 WG2034199 2-Butanone (MEK)ND 0.0100 1 04/01/2023 19:30 WG2034199 Methylene Chloride ND 0.00500 1 04/01/2023 19:30 WG2034199 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/01/2023 19:30 WG2034199 Methyl tert-butyl ether ND 0.00100 1 04/01/2023 19:30 WG2034199 Naphthalene ND 0.00500 1 04/01/2023 19:30 WG2034199 n-Propylbenzene ND 0.00100 1 04/01/2023 19:30 WG2034199 Styrene ND 0.00100 1 04/01/2023 19:30 WG2034199 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/01/2023 19:30 WG2034199 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/01/2023 19:30 WG2034199 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/01/2023 19:30 WG2034199 Tetrachloroethene ND 0.00100 1 04/01/2023 19:30 WG2034199 Toluene ND 0.00100 1 04/01/2023 19:30 WG2034199 1,2,3-Trichlorobenzene ND 0.00100 1 04/01/2023 19:30 WG2034199 1,2,4-Trichlorobenzene ND 0.00100 1 04/01/2023 19:30 WG2034199 1,1,1-Trichloroethane ND 0.00100 1 04/01/2023 19:30 WG2034199 1,1,2-Trichloroethane ND 0.00100 1 04/01/2023 19:30 WG2034199 Trichloroethene ND 0.00100 1 04/01/2023 19:30 WG2034199 Trichlorofluoromethane ND 0.00500 1 04/01/2023 19:30 WG2034199 1,2,3-Trichloropropane ND 0.00250 1 04/01/2023 19:30 WG2034199 1,2,4-Trimethylbenzene ND 0.00100 1 04/01/2023 19:30 WG2034199 1,2,3-Trimethylbenzene ND 0.00100 1 04/01/2023 19:30 WG2034199 1,3,5-Trimethylbenzene ND 0.00100 1 04/01/2023 19:30 WG2034199 Vinyl chloride ND 0.00100 1 04/01/2023 19:30 WG2034199 Xylenes, Total ND 0.00300 1 04/01/2023 19:30 WG2034199 (S) Toluene-d8 97.2 80.0-120 04/01/2023 19:30 WG2034199 (S) 4-Bromofluorobenzene 115 77.0-126 04/01/2023 19:30 WG2034199 (S) 1,2-Dichloroethane-d4 107 70.0-130 04/01/2023 19:30 WG2034199 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 04/01/2023 23:10 WG2033242 Acenaphthylene ND 0.00100 1 04/01/2023 23:10 WG2033242 Anthracene ND 0.00100 1 04/01/2023 23:10 WG2033242 Benzidine ND J4 0.0100 1 04/06/2023 15:49 WG2033242 Benzo(a)anthracene ND 0.00100 1 04/01/2023 23:10 WG2033242 Benzo(b)fluoranthene ND 0.00100 1 04/01/2023 23:10 WG2033242 Benzo(k)fluoranthene ND 0.00100 1 04/01/2023 23:10 WG2033242 Benzo(g,h,i)perylene ND 0.00100 1 04/01/2023 23:10 WG2033242 Benzo(a)pyrene ND 0.00100 1 04/01/2023 23:10 WG2033242 Bis(2-chlorethoxy)methane ND 0.0100 1 04/01/2023 23:10 WG2033242 Bis(2-chloroethyl)ether ND 0.0100 1 04/01/2023 23:10 WG2033242 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 04/01/2023 23:10 WG2033242 4-Bromophenyl-phenylether ND 0.0100 1 04/01/2023 23:10 WG2033242 2-Chloronaphthalene ND 0.00100 1 04/01/2023 23:10 WG2033242 4-Chlorophenyl-phenylether ND 0.0100 1 04/01/2023 23:10 WG2033242 Chrysene ND 0.00100 1 04/01/2023 23:10 WG2033242 Dibenz(a,h)anthracene ND 0.00100 1 04/01/2023 23:10 WG2033242 1,2-Dichlorobenzene ND 0.0100 1 04/01/2023 23:10 WG2033242 1,3-Dichlorobenzene ND 0.0100 1 04/01/2023 23:10 WG2033242 1,4-Dichlorobenzene ND 0.0100 1 04/01/2023 23:10 WG2033242 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 11 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 11 of 63 SAMPLE RESULTS - 02 L1599335 MW-12S Collected date/time: 03/28/23 10:35 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 04/01/2023 23:10 WG2033242 2,4-Dinitrotoluene ND 0.0100 1 04/01/2023 23:10 WG2033242 2,6-Dinitrotoluene ND 0.0100 1 04/01/2023 23:10 WG2033242 Fluoranthene ND 0.00100 1 04/01/2023 23:10 WG2033242 Fluorene ND 0.00100 1 04/01/2023 23:10 WG2033242 Hexachlorobenzene ND 0.00100 1 04/01/2023 23:10 WG2033242 Hexachloro-1,3-butadiene ND 0.0100 1 04/01/2023 23:10 WG2033242 Hexachlorocyclopentadiene ND 0.0100 1 04/01/2023 23:10 WG2033242 Hexachloroethane ND 0.0100 1 04/01/2023 23:10 WG2033242 Indeno(1,2,3-cd)pyrene ND 0.00100 1 04/01/2023 23:10 WG2033242 Isophorone ND 0.0100 1 04/01/2023 23:10 WG2033242 Naphthalene ND 0.00100 1 04/01/2023 23:10 WG2033242 Nitrobenzene ND 0.0100 1 04/01/2023 23:10 WG2033242 n-Nitrosodimethylamine ND 0.0100 1 04/01/2023 23:10 WG2033242 n-Nitrosodiphenylamine ND 0.0100 1 04/01/2023 23:10 WG2033242 n-Nitrosodi-n-propylamine ND 0.0100 1 04/01/2023 23:10 WG2033242 Phenanthrene ND 0.00100 1 04/01/2023 23:10 WG2033242 Benzylbutyl phthalate ND 0.00300 1 04/01/2023 23:10 WG2033242 Bis(2-ethylhexyl)phthalate ND 0.00300 1 04/01/2023 23:10 WG2033242 Di-n-butyl phthalate ND 0.00300 1 04/01/2023 23:10 WG2033242 Diethyl phthalate ND 0.00300 1 04/01/2023 23:10 WG2033242 Dimethyl phthalate ND 0.00300 1 04/01/2023 23:10 WG2033242 Di-n-octyl phthalate ND 0.00300 1 04/01/2023 23:10 WG2033242 Pyrene ND 0.00100 1 04/01/2023 23:10 WG2033242 1,2,4-Trichlorobenzene ND 0.0100 1 04/01/2023 23:10 WG2033242 4-Chloro-3-methylphenol ND 0.0100 1 04/01/2023 23:10 WG2033242 2-Chlorophenol ND 0.0100 1 04/01/2023 23:10 WG2033242 2,4-Dichlorophenol ND 0.0100 1 04/01/2023 23:10 WG2033242 2,4-Dimethylphenol ND 0.0100 1 04/01/2023 23:10 WG2033242 4,6-Dinitro-2-methylphenol ND 0.0100 1 04/01/2023 23:10 WG2033242 2,4-Dinitrophenol ND 0.0100 1 04/01/2023 23:10 WG2033242 2-Nitrophenol ND 0.0100 1 04/01/2023 23:10 WG2033242 4-Nitrophenol ND 0.0100 1 04/01/2023 23:10 WG2033242 Pentachlorophenol ND 0.0100 1 04/01/2023 23:10 WG2033242 Phenol ND 0.0100 1 04/01/2023 23:10 WG2033242 2,4,6-Trichlorophenol ND 0.0100 1 04/01/2023 23:10 WG2033242 (S) 2-Fluorophenol 24.2 10.0-120 04/01/2023 23:10 WG2033242 (S) 2-Fluorophenol 25.9 10.0-120 04/06/2023 15:49 WG2033242 (S) Phenol-d5 14.6 10.0-120 04/01/2023 23:10 WG2033242 (S) Phenol-d5 15.8 10.0-120 04/06/2023 15:49 WG2033242 (S) Nitrobenzene-d5 48.1 10.0-127 04/01/2023 23:10 WG2033242 (S) Nitrobenzene-d5 49.3 10.0-127 04/06/2023 15:49 WG2033242 (S) 2-Fluorobiphenyl 56.2 10.0-130 04/06/2023 15:49 WG2033242 (S) 2-Fluorobiphenyl 53.6 10.0-130 04/01/2023 23:10 WG2033242 (S) 2,4,6-Tribromophenol 69.5 10.0-155 04/01/2023 23:10 WG2033242 (S) 2,4,6-Tribromophenol 55.5 10.0-155 04/06/2023 15:49 WG2033242 (S) p-Terphenyl-d14 56.5 10.0-128 04/06/2023 15:49 WG2033242 (S) p-Terphenyl-d14 57.3 10.0-128 04/01/2023 23:10 WG2033242 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.000822 0.000444 1.11 04/01/2023 09:25 WG2032291 (S) Nitrobenzene-d5 58.6 10.0-120 04/01/2023 09:25 WG2032291 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 12 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 12 of 63 SAMPLE RESULTS - 03 L1599335 MW-17 Collected date/time: 03/28/23 12:00 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/04/2023 17:39 WG2032521 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0132 0.0100 1 03/30/2023 21:26 WG2032546 Barium,Dissolved 0.135 0.00500 1 03/31/2023 12:14 WG2032546 Cadmium,Dissolved ND 0.00200 1 03/30/2023 21:26 WG2032546 Chromium,Dissolved ND 0.0100 1 03/30/2023 21:26 WG2032546 Iron,Dissolved ND 0.100 1 03/30/2023 21:26 WG2032546 Lead,Dissolved ND 0.00600 1 03/30/2023 21:26 WG2032546 Manganese,Dissolved 0.255 0.0100 1 03/30/2023 21:26 WG2032546 Selenium,Dissolved ND 0.0100 1 03/30/2023 21:26 WG2032546 Silver,Dissolved ND 0.00500 1 03/30/2023 21:26 WG2032546 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND J4 0.0500 1 04/01/2023 19:49 WG2034199 Acrolein ND 0.0500 1 04/01/2023 19:49 WG2034199 Acrylonitrile ND 0.0100 1 04/01/2023 19:49 WG2034199 Benzene ND 0.00100 1 04/01/2023 19:49 WG2034199 Bromobenzene ND 0.00100 1 04/01/2023 19:49 WG2034199 Bromodichloromethane ND 0.00100 1 04/01/2023 19:49 WG2034199 Bromoform ND 0.00100 1 04/01/2023 19:49 WG2034199 Bromomethane ND 0.00500 1 04/01/2023 19:49 WG2034199 n-Butylbenzene ND 0.00100 1 04/01/2023 19:49 WG2034199 sec-Butylbenzene ND 0.00100 1 04/01/2023 19:49 WG2034199 tert-Butylbenzene ND 0.00100 1 04/01/2023 19:49 WG2034199 Carbon tetrachloride ND 0.00100 1 04/01/2023 19:49 WG2034199 Chlorobenzene ND 0.00100 1 04/01/2023 19:49 WG2034199 Chlorodibromomethane ND 0.00100 1 04/01/2023 19:49 WG2034199 Chloroethane ND 0.00500 1 04/01/2023 19:49 WG2034199 Chloroform ND 0.00500 1 04/01/2023 19:49 WG2034199 Chloromethane ND 0.00250 1 04/01/2023 19:49 WG2034199 2-Chlorotoluene ND 0.00100 1 04/01/2023 19:49 WG2034199 4-Chlorotoluene ND 0.00100 1 04/01/2023 19:49 WG2034199 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/01/2023 19:49 WG2034199 1,2-Dibromoethane ND 0.00100 1 04/01/2023 19:49 WG2034199 Dibromomethane ND 0.00100 1 04/01/2023 19:49 WG2034199 1,2-Dichlorobenzene ND 0.00100 1 04/01/2023 19:49 WG2034199 1,3-Dichlorobenzene ND 0.00100 1 04/01/2023 19:49 WG2034199 1,4-Dichlorobenzene ND 0.00100 1 04/01/2023 19:49 WG2034199 Dichlorodifluoromethane ND 0.00500 1 04/01/2023 19:49 WG2034199 1,1-Dichloroethane ND 0.00100 1 04/01/2023 19:49 WG2034199 1,2-Dichloroethane ND 0.00100 1 04/01/2023 19:49 WG2034199 1,1-Dichloroethene ND 0.00100 1 04/01/2023 19:49 WG2034199 cis-1,2-Dichloroethene ND 0.00100 1 04/01/2023 19:49 WG2034199 trans-1,2-Dichloroethene ND 0.00100 1 04/01/2023 19:49 WG2034199 1,2-Dichloropropane ND 0.00100 1 04/01/2023 19:49 WG2034199 1,1-Dichloropropene ND 0.00100 1 04/01/2023 19:49 WG2034199 1,3-Dichloropropane ND 0.00100 1 04/01/2023 19:49 WG2034199 cis-1,3-Dichloropropene ND 0.00100 1 04/01/2023 19:49 WG2034199 trans-1,3-Dichloropropene ND 0.00100 1 04/01/2023 19:49 WG2034199 2,2-Dichloropropane ND 0.00100 1 04/01/2023 19:49 WG2034199 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 13 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 13 of 63 SAMPLE RESULTS - 03 L1599335 MW-17 Collected date/time: 03/28/23 12:00 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/01/2023 19:49 WG2034199 Ethylbenzene ND 0.00100 1 04/01/2023 19:49 WG2034199 Hexachloro-1,3-butadiene ND 0.00100 1 04/01/2023 19:49 WG2034199 Isopropylbenzene ND 0.00100 1 04/01/2023 19:49 WG2034199 p-Isopropyltoluene ND 0.00100 1 04/01/2023 19:49 WG2034199 2-Butanone (MEK)ND 0.0100 1 04/01/2023 19:49 WG2034199 Methylene Chloride ND 0.00500 1 04/01/2023 19:49 WG2034199 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/01/2023 19:49 WG2034199 Methyl tert-butyl ether ND 0.00100 1 04/01/2023 19:49 WG2034199 Naphthalene ND 0.00500 1 04/01/2023 19:49 WG2034199 n-Propylbenzene ND 0.00100 1 04/01/2023 19:49 WG2034199 Styrene ND 0.00100 1 04/01/2023 19:49 WG2034199 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/01/2023 19:49 WG2034199 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/01/2023 19:49 WG2034199 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/01/2023 19:49 WG2034199 Tetrachloroethene ND 0.00100 1 04/01/2023 19:49 WG2034199 Toluene ND 0.00100 1 04/01/2023 19:49 WG2034199 1,2,3-Trichlorobenzene ND 0.00100 1 04/01/2023 19:49 WG2034199 1,2,4-Trichlorobenzene ND 0.00100 1 04/01/2023 19:49 WG2034199 1,1,1-Trichloroethane ND 0.00100 1 04/01/2023 19:49 WG2034199 1,1,2-Trichloroethane ND 0.00100 1 04/01/2023 19:49 WG2034199 Trichloroethene ND 0.00100 1 04/01/2023 19:49 WG2034199 Trichlorofluoromethane ND 0.00500 1 04/01/2023 19:49 WG2034199 1,2,3-Trichloropropane ND 0.00250 1 04/01/2023 19:49 WG2034199 1,2,4-Trimethylbenzene ND 0.00100 1 04/01/2023 19:49 WG2034199 1,2,3-Trimethylbenzene ND 0.00100 1 04/01/2023 19:49 WG2034199 1,3,5-Trimethylbenzene ND 0.00100 1 04/01/2023 19:49 WG2034199 Vinyl chloride ND 0.00100 1 04/01/2023 19:49 WG2034199 Xylenes, Total ND 0.00300 1 04/01/2023 19:49 WG2034199 (S) Toluene-d8 96.4 80.0-120 04/01/2023 19:49 WG2034199 (S) 4-Bromofluorobenzene 112 77.0-126 04/01/2023 19:49 WG2034199 (S) 1,2-Dichloroethane-d4 107 70.0-130 04/01/2023 19:49 WG2034199 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 04/01/2023 23:32 WG2033242 Acenaphthylene ND 0.00100 1 04/01/2023 23:32 WG2033242 Anthracene ND 0.00100 1 04/01/2023 23:32 WG2033242 Benzidine ND J4 0.0100 1 04/06/2023 16:10 WG2033242 Benzo(a)anthracene ND 0.00100 1 04/01/2023 23:32 WG2033242 Benzo(b)fluoranthene ND 0.00100 1 04/01/2023 23:32 WG2033242 Benzo(k)fluoranthene ND 0.00100 1 04/01/2023 23:32 WG2033242 Benzo(g,h,i)perylene ND 0.00100 1 04/01/2023 23:32 WG2033242 Benzo(a)pyrene ND 0.00100 1 04/01/2023 23:32 WG2033242 Bis(2-chlorethoxy)methane ND 0.0100 1 04/01/2023 23:32 WG2033242 Bis(2-chloroethyl)ether ND 0.0100 1 04/01/2023 23:32 WG2033242 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 04/01/2023 23:32 WG2033242 4-Bromophenyl-phenylether ND 0.0100 1 04/01/2023 23:32 WG2033242 2-Chloronaphthalene ND 0.00100 1 04/01/2023 23:32 WG2033242 4-Chlorophenyl-phenylether ND 0.0100 1 04/01/2023 23:32 WG2033242 Chrysene ND 0.00100 1 04/01/2023 23:32 WG2033242 Dibenz(a,h)anthracene ND 0.00100 1 04/01/2023 23:32 WG2033242 1,2-Dichlorobenzene ND 0.0100 1 04/01/2023 23:32 WG2033242 1,3-Dichlorobenzene ND 0.0100 1 04/01/2023 23:32 WG2033242 1,4-Dichlorobenzene ND 0.0100 1 04/01/2023 23:32 WG2033242 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 14 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 14 of 63 SAMPLE RESULTS - 03 L1599335 MW-17 Collected date/time: 03/28/23 12:00 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 04/01/2023 23:32 WG2033242 2,4-Dinitrotoluene ND 0.0100 1 04/01/2023 23:32 WG2033242 2,6-Dinitrotoluene ND 0.0100 1 04/01/2023 23:32 WG2033242 Fluoranthene ND 0.00100 1 04/01/2023 23:32 WG2033242 Fluorene ND 0.00100 1 04/01/2023 23:32 WG2033242 Hexachlorobenzene ND 0.00100 1 04/01/2023 23:32 WG2033242 Hexachloro-1,3-butadiene ND 0.0100 1 04/01/2023 23:32 WG2033242 Hexachlorocyclopentadiene ND 0.0100 1 04/01/2023 23:32 WG2033242 Hexachloroethane ND 0.0100 1 04/01/2023 23:32 WG2033242 Indeno(1,2,3-cd)pyrene ND 0.00100 1 04/01/2023 23:32 WG2033242 Isophorone ND 0.0100 1 04/01/2023 23:32 WG2033242 Naphthalene ND 0.00100 1 04/01/2023 23:32 WG2033242 Nitrobenzene ND 0.0100 1 04/01/2023 23:32 WG2033242 n-Nitrosodimethylamine ND 0.0100 1 04/01/2023 23:32 WG2033242 n-Nitrosodiphenylamine ND 0.0100 1 04/01/2023 23:32 WG2033242 n-Nitrosodi-n-propylamine ND 0.0100 1 04/01/2023 23:32 WG2033242 Phenanthrene ND 0.00100 1 04/01/2023 23:32 WG2033242 Benzylbutyl phthalate ND 0.00300 1 04/01/2023 23:32 WG2033242 Bis(2-ethylhexyl)phthalate ND 0.00300 1 04/01/2023 23:32 WG2033242 Di-n-butyl phthalate ND 0.00300 1 04/01/2023 23:32 WG2033242 Diethyl phthalate ND 0.00300 1 04/01/2023 23:32 WG2033242 Dimethyl phthalate ND 0.00300 1 04/01/2023 23:32 WG2033242 Di-n-octyl phthalate ND 0.00300 1 04/01/2023 23:32 WG2033242 Pyrene ND 0.00100 1 04/01/2023 23:32 WG2033242 1,2,4-Trichlorobenzene ND 0.0100 1 04/01/2023 23:32 WG2033242 4-Chloro-3-methylphenol ND 0.0100 1 04/01/2023 23:32 WG2033242 2-Chlorophenol ND 0.0100 1 04/01/2023 23:32 WG2033242 2,4-Dichlorophenol ND 0.0100 1 04/01/2023 23:32 WG2033242 2,4-Dimethylphenol ND 0.0100 1 04/01/2023 23:32 WG2033242 4,6-Dinitro-2-methylphenol ND 0.0100 1 04/01/2023 23:32 WG2033242 2,4-Dinitrophenol ND 0.0100 1 04/01/2023 23:32 WG2033242 2-Nitrophenol ND 0.0100 1 04/01/2023 23:32 WG2033242 4-Nitrophenol ND 0.0100 1 04/01/2023 23:32 WG2033242 Pentachlorophenol ND 0.0100 1 04/01/2023 23:32 WG2033242 Phenol ND 0.0100 1 04/01/2023 23:32 WG2033242 2,4,6-Trichlorophenol ND 0.0100 1 04/01/2023 23:32 WG2033242 (S) 2-Fluorophenol 13.9 10.0-120 04/06/2023 16:10 WG2033242 (S) 2-Fluorophenol 16.2 10.0-120 04/01/2023 23:32 WG2033242 (S) Phenol-d5 10.8 10.0-120 04/06/2023 16:10 WG2033242 (S) Phenol-d5 12.0 10.0-120 04/01/2023 23:32 WG2033242 (S) Nitrobenzene-d5 49.9 10.0-127 04/01/2023 23:32 WG2033242 (S) Nitrobenzene-d5 50.2 10.0-127 04/06/2023 16:10 WG2033242 (S) 2-Fluorobiphenyl 54.1 10.0-130 04/01/2023 23:32 WG2033242 (S) 2-Fluorobiphenyl 57.0 10.0-130 04/06/2023 16:10 WG2033242 (S) 2,4,6-Tribromophenol 25.1 10.0-155 04/06/2023 16:10 WG2033242 (S) 2,4,6-Tribromophenol 41.4 10.0-155 04/01/2023 23:32 WG2033242 (S) p-Terphenyl-d14 45.2 10.0-128 04/06/2023 16:10 WG2033242 (S) p-Terphenyl-d14 45.7 10.0-128 04/01/2023 23:32 WG2033242 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00308 0.000400 1 04/01/2023 14:47 WG2032291 (S) Nitrobenzene-d5 50.0 10.0-120 04/01/2023 14:47 WG2032291 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 15 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 15 of 63 SAMPLE RESULTS - 04 L1599335 MW-18 Collected date/time: 03/28/23 13:30 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/04/2023 17:41 WG2032521 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 03/30/2023 21:29 WG2032546 Barium,Dissolved 0.148 0.00500 1 03/31/2023 12:22 WG2032546 Cadmium,Dissolved ND 0.00200 1 03/30/2023 21:29 WG2032546 Chromium,Dissolved ND 0.0100 1 03/30/2023 21:29 WG2032546 Iron,Dissolved ND 0.100 1 03/30/2023 21:29 WG2032546 Lead,Dissolved ND 0.00600 1 03/30/2023 21:29 WG2032546 Manganese,Dissolved 0.118 0.0100 1 03/30/2023 21:29 WG2032546 Selenium,Dissolved ND 0.0100 1 03/30/2023 21:29 WG2032546 Silver,Dissolved ND 0.00500 1 03/30/2023 21:29 WG2032546 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND J4 0.0500 1 04/01/2023 20:09 WG2034199 Acrolein ND 0.0500 1 04/01/2023 20:09 WG2034199 Acrylonitrile ND 0.0100 1 04/01/2023 20:09 WG2034199 Benzene ND 0.00100 1 04/01/2023 20:09 WG2034199 Bromobenzene ND 0.00100 1 04/01/2023 20:09 WG2034199 Bromodichloromethane ND 0.00100 1 04/01/2023 20:09 WG2034199 Bromoform ND 0.00100 1 04/01/2023 20:09 WG2034199 Bromomethane ND 0.00500 1 04/01/2023 20:09 WG2034199 n-Butylbenzene ND 0.00100 1 04/01/2023 20:09 WG2034199 sec-Butylbenzene ND 0.00100 1 04/01/2023 20:09 WG2034199 tert-Butylbenzene ND 0.00100 1 04/01/2023 20:09 WG2034199 Carbon tetrachloride ND 0.00100 1 04/01/2023 20:09 WG2034199 Chlorobenzene ND 0.00100 1 04/01/2023 20:09 WG2034199 Chlorodibromomethane ND 0.00100 1 04/01/2023 20:09 WG2034199 Chloroethane ND 0.00500 1 04/01/2023 20:09 WG2034199 Chloroform ND 0.00500 1 04/01/2023 20:09 WG2034199 Chloromethane ND 0.00250 1 04/01/2023 20:09 WG2034199 2-Chlorotoluene ND 0.00100 1 04/01/2023 20:09 WG2034199 4-Chlorotoluene ND 0.00100 1 04/01/2023 20:09 WG2034199 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/01/2023 20:09 WG2034199 1,2-Dibromoethane ND 0.00100 1 04/01/2023 20:09 WG2034199 Dibromomethane ND 0.00100 1 04/01/2023 20:09 WG2034199 1,2-Dichlorobenzene ND 0.00100 1 04/01/2023 20:09 WG2034199 1,3-Dichlorobenzene ND 0.00100 1 04/01/2023 20:09 WG2034199 1,4-Dichlorobenzene ND 0.00100 1 04/01/2023 20:09 WG2034199 Dichlorodifluoromethane ND 0.00500 1 04/01/2023 20:09 WG2034199 1,1-Dichloroethane ND 0.00100 1 04/01/2023 20:09 WG2034199 1,2-Dichloroethane ND 0.00100 1 04/01/2023 20:09 WG2034199 1,1-Dichloroethene ND 0.00100 1 04/01/2023 20:09 WG2034199 cis-1,2-Dichloroethene ND 0.00100 1 04/01/2023 20:09 WG2034199 trans-1,2-Dichloroethene ND 0.00100 1 04/01/2023 20:09 WG2034199 1,2-Dichloropropane ND 0.00100 1 04/01/2023 20:09 WG2034199 1,1-Dichloropropene ND 0.00100 1 04/01/2023 20:09 WG2034199 1,3-Dichloropropane ND 0.00100 1 04/01/2023 20:09 WG2034199 cis-1,3-Dichloropropene ND 0.00100 1 04/01/2023 20:09 WG2034199 trans-1,3-Dichloropropene ND 0.00100 1 04/01/2023 20:09 WG2034199 2,2-Dichloropropane ND 0.00100 1 04/01/2023 20:09 WG2034199 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 16 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 16 of 63 SAMPLE RESULTS - 04 L1599335 MW-18 Collected date/time: 03/28/23 13:30 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/01/2023 20:09 WG2034199 Ethylbenzene ND 0.00100 1 04/01/2023 20:09 WG2034199 Hexachloro-1,3-butadiene ND 0.00100 1 04/01/2023 20:09 WG2034199 Isopropylbenzene ND 0.00100 1 04/01/2023 20:09 WG2034199 p-Isopropyltoluene ND 0.00100 1 04/01/2023 20:09 WG2034199 2-Butanone (MEK)ND 0.0100 1 04/01/2023 20:09 WG2034199 Methylene Chloride ND 0.00500 1 04/01/2023 20:09 WG2034199 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/01/2023 20:09 WG2034199 Methyl tert-butyl ether ND 0.00100 1 04/01/2023 20:09 WG2034199 Naphthalene ND 0.00500 1 04/01/2023 20:09 WG2034199 n-Propylbenzene ND 0.00100 1 04/01/2023 20:09 WG2034199 Styrene ND 0.00100 1 04/01/2023 20:09 WG2034199 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/01/2023 20:09 WG2034199 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/01/2023 20:09 WG2034199 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/01/2023 20:09 WG2034199 Tetrachloroethene ND 0.00100 1 04/01/2023 20:09 WG2034199 Toluene ND 0.00100 1 04/01/2023 20:09 WG2034199 1,2,3-Trichlorobenzene ND 0.00100 1 04/01/2023 20:09 WG2034199 1,2,4-Trichlorobenzene ND 0.00100 1 04/01/2023 20:09 WG2034199 1,1,1-Trichloroethane ND 0.00100 1 04/01/2023 20:09 WG2034199 1,1,2-Trichloroethane ND 0.00100 1 04/01/2023 20:09 WG2034199 Trichloroethene ND 0.00100 1 04/01/2023 20:09 WG2034199 Trichlorofluoromethane ND 0.00500 1 04/01/2023 20:09 WG2034199 1,2,3-Trichloropropane ND 0.00250 1 04/01/2023 20:09 WG2034199 1,2,4-Trimethylbenzene ND 0.00100 1 04/01/2023 20:09 WG2034199 1,2,3-Trimethylbenzene ND 0.00100 1 04/01/2023 20:09 WG2034199 1,3,5-Trimethylbenzene ND 0.00100 1 04/01/2023 20:09 WG2034199 Vinyl chloride ND 0.00100 1 04/01/2023 20:09 WG2034199 Xylenes, Total ND 0.00300 1 04/01/2023 20:09 WG2034199 (S) Toluene-d8 96.6 80.0-120 04/01/2023 20:09 WG2034199 (S) 4-Bromofluorobenzene 115 77.0-126 04/01/2023 20:09 WG2034199 (S) 1,2-Dichloroethane-d4 101 70.0-130 04/01/2023 20:09 WG2034199 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 04/01/2023 23:54 WG2033242 Acenaphthylene ND 0.00100 1 04/01/2023 23:54 WG2033242 Anthracene ND 0.00100 1 04/01/2023 23:54 WG2033242 Benzidine ND J4 0.0100 1 04/06/2023 16:31 WG2033242 Benzo(a)anthracene ND 0.00100 1 04/01/2023 23:54 WG2033242 Benzo(b)fluoranthene ND 0.00100 1 04/01/2023 23:54 WG2033242 Benzo(k)fluoranthene ND 0.00100 1 04/01/2023 23:54 WG2033242 Benzo(g,h,i)perylene ND 0.00100 1 04/01/2023 23:54 WG2033242 Benzo(a)pyrene ND 0.00100 1 04/01/2023 23:54 WG2033242 Bis(2-chlorethoxy)methane ND 0.0100 1 04/01/2023 23:54 WG2033242 Bis(2-chloroethyl)ether ND 0.0100 1 04/01/2023 23:54 WG2033242 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 04/01/2023 23:54 WG2033242 4-Bromophenyl-phenylether ND 0.0100 1 04/01/2023 23:54 WG2033242 2-Chloronaphthalene ND 0.00100 1 04/01/2023 23:54 WG2033242 4-Chlorophenyl-phenylether ND 0.0100 1 04/01/2023 23:54 WG2033242 Chrysene ND 0.00100 1 04/01/2023 23:54 WG2033242 Dibenz(a,h)anthracene ND 0.00100 1 04/01/2023 23:54 WG2033242 1,2-Dichlorobenzene ND 0.0100 1 04/01/2023 23:54 WG2033242 1,3-Dichlorobenzene ND 0.0100 1 04/01/2023 23:54 WG2033242 1,4-Dichlorobenzene ND 0.0100 1 04/01/2023 23:54 WG2033242 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 17 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 17 of 63 SAMPLE RESULTS - 04 L1599335 MW-18 Collected date/time: 03/28/23 13:30 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 04/01/2023 23:54 WG2033242 2,4-Dinitrotoluene ND 0.0100 1 04/01/2023 23:54 WG2033242 2,6-Dinitrotoluene ND 0.0100 1 04/01/2023 23:54 WG2033242 Fluoranthene ND 0.00100 1 04/01/2023 23:54 WG2033242 Fluorene ND 0.00100 1 04/01/2023 23:54 WG2033242 Hexachlorobenzene ND 0.00100 1 04/01/2023 23:54 WG2033242 Hexachloro-1,3-butadiene ND 0.0100 1 04/01/2023 23:54 WG2033242 Hexachlorocyclopentadiene ND 0.0100 1 04/01/2023 23:54 WG2033242 Hexachloroethane ND 0.0100 1 04/01/2023 23:54 WG2033242 Indeno(1,2,3-cd)pyrene ND 0.00100 1 04/01/2023 23:54 WG2033242 Isophorone ND 0.0100 1 04/01/2023 23:54 WG2033242 Naphthalene ND 0.00100 1 04/01/2023 23:54 WG2033242 Nitrobenzene ND 0.0100 1 04/01/2023 23:54 WG2033242 n-Nitrosodimethylamine ND 0.0100 1 04/01/2023 23:54 WG2033242 n-Nitrosodiphenylamine ND 0.0100 1 04/01/2023 23:54 WG2033242 n-Nitrosodi-n-propylamine ND 0.0100 1 04/01/2023 23:54 WG2033242 Phenanthrene ND 0.00100 1 04/01/2023 23:54 WG2033242 Benzylbutyl phthalate ND 0.00300 1 04/01/2023 23:54 WG2033242 Bis(2-ethylhexyl)phthalate ND 0.00300 1 04/01/2023 23:54 WG2033242 Di-n-butyl phthalate ND 0.00300 1 04/01/2023 23:54 WG2033242 Diethyl phthalate ND 0.00300 1 04/01/2023 23:54 WG2033242 Dimethyl phthalate ND 0.00300 1 04/01/2023 23:54 WG2033242 Di-n-octyl phthalate ND 0.00300 1 04/01/2023 23:54 WG2033242 Pyrene ND 0.00100 1 04/01/2023 23:54 WG2033242 1,2,4-Trichlorobenzene ND 0.0100 1 04/01/2023 23:54 WG2033242 4-Chloro-3-methylphenol ND 0.0100 1 04/01/2023 23:54 WG2033242 2-Chlorophenol ND 0.0100 1 04/01/2023 23:54 WG2033242 2,4-Dichlorophenol ND 0.0100 1 04/01/2023 23:54 WG2033242 2,4-Dimethylphenol ND 0.0100 1 04/01/2023 23:54 WG2033242 4,6-Dinitro-2-methylphenol ND 0.0100 1 04/01/2023 23:54 WG2033242 2,4-Dinitrophenol ND 0.0100 1 04/01/2023 23:54 WG2033242 2-Nitrophenol ND 0.0100 1 04/01/2023 23:54 WG2033242 4-Nitrophenol ND 0.0100 1 04/01/2023 23:54 WG2033242 Pentachlorophenol ND 0.0100 1 04/01/2023 23:54 WG2033242 Phenol ND 0.0100 1 04/01/2023 23:54 WG2033242 2,4,6-Trichlorophenol ND 0.0100 1 04/01/2023 23:54 WG2033242 (S) 2-Fluorophenol 17.2 10.0-120 04/06/2023 16:31 WG2033242 (S) 2-Fluorophenol 17.3 10.0-120 04/01/2023 23:54 WG2033242 (S) Phenol-d5 12.1 10.0-120 04/01/2023 23:54 WG2033242 (S) Phenol-d5 12.2 10.0-120 04/06/2023 16:31 WG2033242 (S) Nitrobenzene-d5 50.7 10.0-127 04/01/2023 23:54 WG2033242 (S) Nitrobenzene-d5 50.5 10.0-127 04/06/2023 16:31 WG2033242 (S) 2-Fluorobiphenyl 59.6 10.0-130 04/06/2023 16:31 WG2033242 (S) 2-Fluorobiphenyl 55.4 10.0-130 04/01/2023 23:54 WG2033242 (S) 2,4,6-Tribromophenol 53.4 10.0-155 04/01/2023 23:54 WG2033242 (S) 2,4,6-Tribromophenol 39.6 10.0-155 04/06/2023 16:31 WG2033242 (S) p-Terphenyl-d14 57.1 10.0-128 04/01/2023 23:54 WG2033242 (S) p-Terphenyl-d14 52.5 10.0-128 04/06/2023 16:31 WG2033242 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00185 0.000400 1 04/01/2023 15:06 WG2032291 (S) Nitrobenzene-d5 48.7 10.0-120 04/01/2023 15:06 WG2032291 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 18 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 18 of 63 SAMPLE RESULTS - 05 L1599335 MW-9 Collected date/time: 03/28/23 14:45 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/04/2023 17:43 WG2032521 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.247 0.0100 1 03/30/2023 21:32 WG2032546 Barium,Dissolved 0.221 0.00500 1 03/31/2023 12:25 WG2032546 Cadmium,Dissolved ND 0.00200 1 03/30/2023 21:32 WG2032546 Chromium,Dissolved ND 0.0100 1 03/30/2023 21:32 WG2032546 Iron,Dissolved 0.134 0.100 1 03/30/2023 21:32 WG2032546 Lead,Dissolved ND 0.00600 1 03/30/2023 21:32 WG2032546 Manganese,Dissolved 0.0101 0.0100 1 03/30/2023 21:32 WG2032546 Selenium,Dissolved ND 0.0100 1 03/30/2023 21:32 WG2032546 Silver,Dissolved ND 0.00500 1 03/30/2023 21:32 WG2032546 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND J4 0.0500 1 04/01/2023 20:28 WG2034199 Acrolein ND 0.0500 1 04/01/2023 20:28 WG2034199 Acrylonitrile ND 0.0100 1 04/01/2023 20:28 WG2034199 Benzene ND 0.00100 1 04/01/2023 20:28 WG2034199 Bromobenzene ND 0.00100 1 04/01/2023 20:28 WG2034199 Bromodichloromethane ND 0.00100 1 04/01/2023 20:28 WG2034199 Bromoform ND 0.00100 1 04/01/2023 20:28 WG2034199 Bromomethane ND 0.00500 1 04/01/2023 20:28 WG2034199 n-Butylbenzene ND 0.00100 1 04/01/2023 20:28 WG2034199 sec-Butylbenzene ND 0.00100 1 04/01/2023 20:28 WG2034199 tert-Butylbenzene ND 0.00100 1 04/01/2023 20:28 WG2034199 Carbon tetrachloride ND 0.00100 1 04/01/2023 20:28 WG2034199 Chlorobenzene ND 0.00100 1 04/01/2023 20:28 WG2034199 Chlorodibromomethane ND 0.00100 1 04/01/2023 20:28 WG2034199 Chloroethane ND 0.00500 1 04/01/2023 20:28 WG2034199 Chloroform ND 0.00500 1 04/01/2023 20:28 WG2034199 Chloromethane ND 0.00250 1 04/01/2023 20:28 WG2034199 2-Chlorotoluene ND 0.00100 1 04/01/2023 20:28 WG2034199 4-Chlorotoluene ND 0.00100 1 04/01/2023 20:28 WG2034199 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/01/2023 20:28 WG2034199 1,2-Dibromoethane ND 0.00100 1 04/01/2023 20:28 WG2034199 Dibromomethane ND 0.00100 1 04/01/2023 20:28 WG2034199 1,2-Dichlorobenzene ND 0.00100 1 04/01/2023 20:28 WG2034199 1,3-Dichlorobenzene ND 0.00100 1 04/01/2023 20:28 WG2034199 1,4-Dichlorobenzene ND 0.00100 1 04/01/2023 20:28 WG2034199 Dichlorodifluoromethane ND 0.00500 1 04/01/2023 20:28 WG2034199 1,1-Dichloroethane ND 0.00100 1 04/01/2023 20:28 WG2034199 1,2-Dichloroethane ND 0.00100 1 04/01/2023 20:28 WG2034199 1,1-Dichloroethene ND 0.00100 1 04/01/2023 20:28 WG2034199 cis-1,2-Dichloroethene ND 0.00100 1 04/01/2023 20:28 WG2034199 trans-1,2-Dichloroethene ND 0.00100 1 04/01/2023 20:28 WG2034199 1,2-Dichloropropane ND 0.00100 1 04/01/2023 20:28 WG2034199 1,1-Dichloropropene ND 0.00100 1 04/01/2023 20:28 WG2034199 1,3-Dichloropropane ND 0.00100 1 04/01/2023 20:28 WG2034199 cis-1,3-Dichloropropene ND 0.00100 1 04/01/2023 20:28 WG2034199 trans-1,3-Dichloropropene ND 0.00100 1 04/01/2023 20:28 WG2034199 2,2-Dichloropropane ND 0.00100 1 04/01/2023 20:28 WG2034199 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 19 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 19 of 63 SAMPLE RESULTS - 05 L1599335 MW-9 Collected date/time: 03/28/23 14:45 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/01/2023 20:28 WG2034199 Ethylbenzene ND 0.00100 1 04/01/2023 20:28 WG2034199 Hexachloro-1,3-butadiene ND 0.00100 1 04/01/2023 20:28 WG2034199 Isopropylbenzene ND 0.00100 1 04/01/2023 20:28 WG2034199 p-Isopropyltoluene ND 0.00100 1 04/01/2023 20:28 WG2034199 2-Butanone (MEK)ND 0.0100 1 04/01/2023 20:28 WG2034199 Methylene Chloride ND 0.00500 1 04/01/2023 20:28 WG2034199 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/01/2023 20:28 WG2034199 Methyl tert-butyl ether ND 0.00100 1 04/01/2023 20:28 WG2034199 Naphthalene ND 0.00500 1 04/01/2023 20:28 WG2034199 n-Propylbenzene ND 0.00100 1 04/01/2023 20:28 WG2034199 Styrene ND 0.00100 1 04/01/2023 20:28 WG2034199 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/01/2023 20:28 WG2034199 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/01/2023 20:28 WG2034199 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/01/2023 20:28 WG2034199 Tetrachloroethene ND 0.00100 1 04/01/2023 20:28 WG2034199 Toluene ND 0.00100 1 04/01/2023 20:28 WG2034199 1,2,3-Trichlorobenzene ND 0.00100 1 04/01/2023 20:28 WG2034199 1,2,4-Trichlorobenzene ND 0.00100 1 04/01/2023 20:28 WG2034199 1,1,1-Trichloroethane ND 0.00100 1 04/01/2023 20:28 WG2034199 1,1,2-Trichloroethane ND 0.00100 1 04/01/2023 20:28 WG2034199 Trichloroethene ND 0.00100 1 04/01/2023 20:28 WG2034199 Trichlorofluoromethane ND 0.00500 1 04/01/2023 20:28 WG2034199 1,2,3-Trichloropropane ND 0.00250 1 04/01/2023 20:28 WG2034199 1,2,4-Trimethylbenzene ND 0.00100 1 04/01/2023 20:28 WG2034199 1,2,3-Trimethylbenzene ND 0.00100 1 04/01/2023 20:28 WG2034199 1,3,5-Trimethylbenzene ND 0.00100 1 04/01/2023 20:28 WG2034199 Vinyl chloride ND 0.00100 1 04/01/2023 20:28 WG2034199 Xylenes, Total ND 0.00300 1 04/01/2023 20:28 WG2034199 (S) Toluene-d8 97.9 80.0-120 04/01/2023 20:28 WG2034199 (S) 4-Bromofluorobenzene 115 77.0-126 04/01/2023 20:28 WG2034199 (S) 1,2-Dichloroethane-d4 101 70.0-130 04/01/2023 20:28 WG2034199 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane ND 0.000400 1 04/01/2023 15:25 WG2032291 (S) Nitrobenzene-d5 48.9 10.0-120 04/01/2023 15:25 WG2032291 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 20 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 20 of 63 SAMPLE RESULTS - 06 L1599335 GMW-8 Collected date/time: 03/28/23 15:50 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/04/2023 17:45 WG2032521 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 03/30/2023 21:35 WG2032546 Barium,Dissolved 0.0421 0.00500 1 03/31/2023 12:28 WG2032546 Cadmium,Dissolved ND 0.00200 1 03/30/2023 21:35 WG2032546 Chromium,Dissolved ND 0.0100 1 03/30/2023 21:35 WG2032546 Iron,Dissolved ND 0.100 1 03/30/2023 21:35 WG2032546 Lead,Dissolved ND 0.00600 1 03/30/2023 21:35 WG2032546 Manganese,Dissolved 0.0749 0.0100 1 03/30/2023 21:35 WG2032546 Selenium,Dissolved ND 0.0100 1 03/30/2023 21:35 WG2032546 Silver,Dissolved ND 0.00500 1 03/30/2023 21:35 WG2032546 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND J4 0.0500 1 04/01/2023 20:47 WG2034199 Acrolein ND 0.0500 1 04/01/2023 20:47 WG2034199 Acrylonitrile ND 0.0100 1 04/01/2023 20:47 WG2034199 Benzene ND 0.00100 1 04/01/2023 20:47 WG2034199 Bromobenzene ND 0.00100 1 04/01/2023 20:47 WG2034199 Bromodichloromethane ND 0.00100 1 04/01/2023 20:47 WG2034199 Bromoform ND 0.00100 1 04/01/2023 20:47 WG2034199 Bromomethane ND 0.00500 1 04/01/2023 20:47 WG2034199 n-Butylbenzene ND 0.00100 1 04/01/2023 20:47 WG2034199 sec-Butylbenzene ND 0.00100 1 04/01/2023 20:47 WG2034199 tert-Butylbenzene ND 0.00100 1 04/01/2023 20:47 WG2034199 Carbon tetrachloride ND 0.00100 1 04/01/2023 20:47 WG2034199 Chlorobenzene ND 0.00100 1 04/01/2023 20:47 WG2034199 Chlorodibromomethane ND 0.00100 1 04/01/2023 20:47 WG2034199 Chloroethane ND 0.00500 1 04/01/2023 20:47 WG2034199 Chloroform ND 0.00500 1 04/01/2023 20:47 WG2034199 Chloromethane ND 0.00250 1 04/01/2023 20:47 WG2034199 2-Chlorotoluene ND 0.00100 1 04/01/2023 20:47 WG2034199 4-Chlorotoluene ND 0.00100 1 04/01/2023 20:47 WG2034199 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/01/2023 20:47 WG2034199 1,2-Dibromoethane ND 0.00100 1 04/01/2023 20:47 WG2034199 Dibromomethane ND 0.00100 1 04/01/2023 20:47 WG2034199 1,2-Dichlorobenzene ND 0.00100 1 04/01/2023 20:47 WG2034199 1,3-Dichlorobenzene ND 0.00100 1 04/01/2023 20:47 WG2034199 1,4-Dichlorobenzene ND 0.00100 1 04/01/2023 20:47 WG2034199 Dichlorodifluoromethane ND 0.00500 1 04/01/2023 20:47 WG2034199 1,1-Dichloroethane 0.00419 0.00100 1 04/01/2023 20:47 WG2034199 1,2-Dichloroethane ND 0.00100 1 04/01/2023 20:47 WG2034199 1,1-Dichloroethene 0.0124 0.00100 1 04/01/2023 20:47 WG2034199 cis-1,2-Dichloroethene ND 0.00100 1 04/01/2023 20:47 WG2034199 trans-1,2-Dichloroethene ND 0.00100 1 04/01/2023 20:47 WG2034199 1,2-Dichloropropane ND 0.00100 1 04/01/2023 20:47 WG2034199 1,1-Dichloropropene ND 0.00100 1 04/01/2023 20:47 WG2034199 1,3-Dichloropropane ND 0.00100 1 04/01/2023 20:47 WG2034199 cis-1,3-Dichloropropene ND 0.00100 1 04/01/2023 20:47 WG2034199 trans-1,3-Dichloropropene ND 0.00100 1 04/01/2023 20:47 WG2034199 2,2-Dichloropropane ND 0.00100 1 04/01/2023 20:47 WG2034199 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 21 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 21 of 63 SAMPLE RESULTS - 06 L1599335 GMW-8 Collected date/time: 03/28/23 15:50 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/01/2023 20:47 WG2034199 Ethylbenzene ND 0.00100 1 04/01/2023 20:47 WG2034199 Hexachloro-1,3-butadiene ND 0.00100 1 04/01/2023 20:47 WG2034199 Isopropylbenzene ND 0.00100 1 04/01/2023 20:47 WG2034199 p-Isopropyltoluene ND 0.00100 1 04/01/2023 20:47 WG2034199 2-Butanone (MEK)ND 0.0100 1 04/01/2023 20:47 WG2034199 Methylene Chloride ND 0.00500 1 04/01/2023 20:47 WG2034199 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/01/2023 20:47 WG2034199 Methyl tert-butyl ether ND 0.00100 1 04/01/2023 20:47 WG2034199 Naphthalene ND 0.00500 1 04/01/2023 20:47 WG2034199 n-Propylbenzene ND 0.00100 1 04/01/2023 20:47 WG2034199 Styrene ND 0.00100 1 04/01/2023 20:47 WG2034199 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/01/2023 20:47 WG2034199 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/01/2023 20:47 WG2034199 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/01/2023 20:47 WG2034199 Tetrachloroethene ND 0.00100 1 04/01/2023 20:47 WG2034199 Toluene ND 0.00100 1 04/01/2023 20:47 WG2034199 1,2,3-Trichlorobenzene ND 0.00100 1 04/01/2023 20:47 WG2034199 1,2,4-Trichlorobenzene ND 0.00100 1 04/01/2023 20:47 WG2034199 1,1,1-Trichloroethane 0.00162 0.00100 1 04/01/2023 20:47 WG2034199 1,1,2-Trichloroethane ND 0.00100 1 04/01/2023 20:47 WG2034199 Trichloroethene ND 0.00100 1 04/01/2023 20:47 WG2034199 Trichlorofluoromethane ND 0.00500 1 04/01/2023 20:47 WG2034199 1,2,3-Trichloropropane ND 0.00250 1 04/01/2023 20:47 WG2034199 1,2,4-Trimethylbenzene ND 0.00100 1 04/01/2023 20:47 WG2034199 1,2,3-Trimethylbenzene ND 0.00100 1 04/01/2023 20:47 WG2034199 1,3,5-Trimethylbenzene ND 0.00100 1 04/01/2023 20:47 WG2034199 Vinyl chloride ND 0.00100 1 04/01/2023 20:47 WG2034199 Xylenes, Total ND 0.00300 1 04/01/2023 20:47 WG2034199 (S) Toluene-d8 97.5 80.0-120 04/01/2023 20:47 WG2034199 (S) 4-Bromofluorobenzene 116 77.0-126 04/01/2023 20:47 WG2034199 (S) 1,2-Dichloroethane-d4 100 70.0-130 04/01/2023 20:47 WG2034199 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.0202 0.000400 1 04/01/2023 15:45 WG2032291 (S) Nitrobenzene-d5 46.0 10.0-120 04/01/2023 15:45 WG2032291 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 22 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 22 of 63 SAMPLE RESULTS - 07 L1599335 MW-1 Collected date/time: 03/28/23 09:48 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/04/2023 17:47 WG2032521 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 03/30/2023 21:37 WG2032546 Barium,Dissolved 0.297 0.00500 1 03/31/2023 12:31 WG2032546 Cadmium,Dissolved ND 0.00200 1 03/30/2023 21:37 WG2032546 Chromium,Dissolved ND 0.0100 1 03/30/2023 21:37 WG2032546 Iron,Dissolved ND 0.100 1 03/30/2023 21:37 WG2032546 Lead,Dissolved ND 0.00600 1 03/30/2023 21:37 WG2032546 Manganese,Dissolved 0.0312 0.0100 1 03/30/2023 21:37 WG2032546 Selenium,Dissolved ND 0.0100 1 03/30/2023 21:37 WG2032546 Silver,Dissolved ND 0.00500 1 03/30/2023 21:37 WG2032546 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND J4 0.0500 1 04/01/2023 21:06 WG2034199 Acrolein ND 0.0500 1 04/01/2023 21:06 WG2034199 Acrylonitrile ND 0.0100 1 04/01/2023 21:06 WG2034199 Benzene ND 0.00100 1 04/01/2023 21:06 WG2034199 Bromobenzene ND 0.00100 1 04/01/2023 21:06 WG2034199 Bromodichloromethane ND 0.00100 1 04/01/2023 21:06 WG2034199 Bromoform ND 0.00100 1 04/01/2023 21:06 WG2034199 Bromomethane ND 0.00500 1 04/01/2023 21:06 WG2034199 n-Butylbenzene ND 0.00100 1 04/01/2023 21:06 WG2034199 sec-Butylbenzene ND 0.00100 1 04/01/2023 21:06 WG2034199 tert-Butylbenzene ND 0.00100 1 04/01/2023 21:06 WG2034199 Carbon tetrachloride ND 0.00100 1 04/01/2023 21:06 WG2034199 Chlorobenzene ND 0.00100 1 04/01/2023 21:06 WG2034199 Chlorodibromomethane ND 0.00100 1 04/01/2023 21:06 WG2034199 Chloroethane ND 0.00500 1 04/01/2023 21:06 WG2034199 Chloroform ND 0.00500 1 04/01/2023 21:06 WG2034199 Chloromethane ND 0.00250 1 04/01/2023 21:06 WG2034199 2-Chlorotoluene ND 0.00100 1 04/01/2023 21:06 WG2034199 4-Chlorotoluene ND 0.00100 1 04/01/2023 21:06 WG2034199 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/01/2023 21:06 WG2034199 1,2-Dibromoethane ND 0.00100 1 04/01/2023 21:06 WG2034199 Dibromomethane ND 0.00100 1 04/01/2023 21:06 WG2034199 1,2-Dichlorobenzene ND 0.00100 1 04/01/2023 21:06 WG2034199 1,3-Dichlorobenzene ND 0.00100 1 04/01/2023 21:06 WG2034199 1,4-Dichlorobenzene ND 0.00100 1 04/01/2023 21:06 WG2034199 Dichlorodifluoromethane ND 0.00500 1 04/01/2023 21:06 WG2034199 1,1-Dichloroethane ND 0.00100 1 04/01/2023 21:06 WG2034199 1,2-Dichloroethane ND 0.00100 1 04/01/2023 21:06 WG2034199 1,1-Dichloroethene ND 0.00100 1 04/01/2023 21:06 WG2034199 cis-1,2-Dichloroethene ND 0.00100 1 04/01/2023 21:06 WG2034199 trans-1,2-Dichloroethene ND 0.00100 1 04/01/2023 21:06 WG2034199 1,2-Dichloropropane ND 0.00100 1 04/01/2023 21:06 WG2034199 1,1-Dichloropropene ND 0.00100 1 04/01/2023 21:06 WG2034199 1,3-Dichloropropane ND 0.00100 1 04/01/2023 21:06 WG2034199 cis-1,3-Dichloropropene ND 0.00100 1 04/01/2023 21:06 WG2034199 trans-1,3-Dichloropropene ND 0.00100 1 04/01/2023 21:06 WG2034199 2,2-Dichloropropane ND 0.00100 1 04/01/2023 21:06 WG2034199 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 23 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 23 of 63 SAMPLE RESULTS - 07 L1599335 MW-1 Collected date/time: 03/28/23 09:48 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/01/2023 21:06 WG2034199 Ethylbenzene ND 0.00100 1 04/01/2023 21:06 WG2034199 Hexachloro-1,3-butadiene ND 0.00100 1 04/01/2023 21:06 WG2034199 Isopropylbenzene ND 0.00100 1 04/01/2023 21:06 WG2034199 p-Isopropyltoluene ND 0.00100 1 04/01/2023 21:06 WG2034199 2-Butanone (MEK)ND 0.0100 1 04/01/2023 21:06 WG2034199 Methylene Chloride ND 0.00500 1 04/01/2023 21:06 WG2034199 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/01/2023 21:06 WG2034199 Methyl tert-butyl ether ND 0.00100 1 04/01/2023 21:06 WG2034199 Naphthalene ND 0.00500 1 04/01/2023 21:06 WG2034199 n-Propylbenzene ND 0.00100 1 04/01/2023 21:06 WG2034199 Styrene ND 0.00100 1 04/01/2023 21:06 WG2034199 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/01/2023 21:06 WG2034199 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/01/2023 21:06 WG2034199 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/01/2023 21:06 WG2034199 Tetrachloroethene ND 0.00100 1 04/01/2023 21:06 WG2034199 Toluene ND 0.00100 1 04/01/2023 21:06 WG2034199 1,2,3-Trichlorobenzene ND 0.00100 1 04/01/2023 21:06 WG2034199 1,2,4-Trichlorobenzene ND 0.00100 1 04/01/2023 21:06 WG2034199 1,1,1-Trichloroethane ND 0.00100 1 04/01/2023 21:06 WG2034199 1,1,2-Trichloroethane ND 0.00100 1 04/01/2023 21:06 WG2034199 Trichloroethene ND 0.00100 1 04/01/2023 21:06 WG2034199 Trichlorofluoromethane ND 0.00500 1 04/01/2023 21:06 WG2034199 1,2,3-Trichloropropane ND 0.00250 1 04/01/2023 21:06 WG2034199 1,2,4-Trimethylbenzene ND 0.00100 1 04/01/2023 21:06 WG2034199 1,2,3-Trimethylbenzene ND 0.00100 1 04/01/2023 21:06 WG2034199 1,3,5-Trimethylbenzene ND 0.00100 1 04/01/2023 21:06 WG2034199 Vinyl chloride ND 0.00100 1 04/01/2023 21:06 WG2034199 Xylenes, Total ND 0.00300 1 04/01/2023 21:06 WG2034199 (S) Toluene-d8 98.8 80.0-120 04/01/2023 21:06 WG2034199 (S) 4-Bromofluorobenzene 112 77.0-126 04/01/2023 21:06 WG2034199 (S) 1,2-Dichloroethane-d4 98.2 70.0-130 04/01/2023 21:06 WG2034199 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane ND 0.000400 1 04/01/2023 16:04 WG2032291 (S) Nitrobenzene-d5 44.3 10.0-120 04/01/2023 16:04 WG2032291 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 24 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 24 of 63 SAMPLE RESULTS - 08 L1599335 GMW-5 Collected date/time: 03/28/23 11:55 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/04/2023 17:49 WG2032521 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0271 0.0100 1 03/30/2023 21:40 WG2032546 Barium,Dissolved 0.290 0.00500 1 03/31/2023 12:34 WG2032546 Cadmium,Dissolved ND 0.00200 1 03/30/2023 21:40 WG2032546 Chromium,Dissolved ND 0.0100 1 03/30/2023 21:40 WG2032546 Iron,Dissolved ND 0.100 1 03/30/2023 21:40 WG2032546 Lead,Dissolved ND 0.00600 1 03/30/2023 21:40 WG2032546 Manganese,Dissolved 0.520 0.0100 1 03/30/2023 21:40 WG2032546 Selenium,Dissolved ND 0.0100 1 03/30/2023 21:40 WG2032546 Silver,Dissolved ND 0.00500 1 03/30/2023 21:40 WG2032546 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND J4 0.0500 1 04/01/2023 21:25 WG2034199 Acrolein ND 0.0500 1 04/01/2023 21:25 WG2034199 Acrylonitrile ND 0.0100 1 04/01/2023 21:25 WG2034199 Benzene ND 0.00100 1 04/01/2023 21:25 WG2034199 Bromobenzene ND 0.00100 1 04/01/2023 21:25 WG2034199 Bromodichloromethane ND 0.00100 1 04/01/2023 21:25 WG2034199 Bromoform ND 0.00100 1 04/01/2023 21:25 WG2034199 Bromomethane ND 0.00500 1 04/01/2023 21:25 WG2034199 n-Butylbenzene ND 0.00100 1 04/01/2023 21:25 WG2034199 sec-Butylbenzene ND 0.00100 1 04/01/2023 21:25 WG2034199 tert-Butylbenzene ND 0.00100 1 04/01/2023 21:25 WG2034199 Carbon tetrachloride ND 0.00100 1 04/01/2023 21:25 WG2034199 Chlorobenzene ND 0.00100 1 04/01/2023 21:25 WG2034199 Chlorodibromomethane ND 0.00100 1 04/01/2023 21:25 WG2034199 Chloroethane ND 0.00500 1 04/01/2023 21:25 WG2034199 Chloroform ND 0.00500 1 04/01/2023 21:25 WG2034199 Chloromethane ND 0.00250 1 04/01/2023 21:25 WG2034199 2-Chlorotoluene ND 0.00100 1 04/01/2023 21:25 WG2034199 4-Chlorotoluene ND 0.00100 1 04/01/2023 21:25 WG2034199 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/01/2023 21:25 WG2034199 1,2-Dibromoethane ND 0.00100 1 04/01/2023 21:25 WG2034199 Dibromomethane ND 0.00100 1 04/01/2023 21:25 WG2034199 1,2-Dichlorobenzene ND 0.00100 1 04/01/2023 21:25 WG2034199 1,3-Dichlorobenzene ND 0.00100 1 04/01/2023 21:25 WG2034199 1,4-Dichlorobenzene ND 0.00100 1 04/01/2023 21:25 WG2034199 Dichlorodifluoromethane ND 0.00500 1 04/01/2023 21:25 WG2034199 1,1-Dichloroethane ND 0.00100 1 04/01/2023 21:25 WG2034199 1,2-Dichloroethane ND 0.00100 1 04/01/2023 21:25 WG2034199 1,1-Dichloroethene ND 0.00100 1 04/01/2023 21:25 WG2034199 cis-1,2-Dichloroethene ND 0.00100 1 04/01/2023 21:25 WG2034199 trans-1,2-Dichloroethene ND 0.00100 1 04/01/2023 21:25 WG2034199 1,2-Dichloropropane ND 0.00100 1 04/01/2023 21:25 WG2034199 1,1-Dichloropropene ND 0.00100 1 04/01/2023 21:25 WG2034199 1,3-Dichloropropane ND 0.00100 1 04/01/2023 21:25 WG2034199 cis-1,3-Dichloropropene ND 0.00100 1 04/01/2023 21:25 WG2034199 trans-1,3-Dichloropropene ND 0.00100 1 04/01/2023 21:25 WG2034199 2,2-Dichloropropane ND 0.00100 1 04/01/2023 21:25 WG2034199 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 25 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 25 of 63 SAMPLE RESULTS - 08 L1599335 GMW-5 Collected date/time: 03/28/23 11:55 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/01/2023 21:25 WG2034199 Ethylbenzene ND 0.00100 1 04/01/2023 21:25 WG2034199 Hexachloro-1,3-butadiene ND 0.00100 1 04/01/2023 21:25 WG2034199 Isopropylbenzene ND 0.00100 1 04/01/2023 21:25 WG2034199 p-Isopropyltoluene ND 0.00100 1 04/01/2023 21:25 WG2034199 2-Butanone (MEK)ND 0.0100 1 04/01/2023 21:25 WG2034199 Methylene Chloride ND 0.00500 1 04/01/2023 21:25 WG2034199 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/01/2023 21:25 WG2034199 Methyl tert-butyl ether ND 0.00100 1 04/01/2023 21:25 WG2034199 Naphthalene ND 0.00500 1 04/01/2023 21:25 WG2034199 n-Propylbenzene ND 0.00100 1 04/01/2023 21:25 WG2034199 Styrene ND 0.00100 1 04/01/2023 21:25 WG2034199 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/01/2023 21:25 WG2034199 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/01/2023 21:25 WG2034199 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/01/2023 21:25 WG2034199 Tetrachloroethene ND 0.00100 1 04/01/2023 21:25 WG2034199 Toluene ND 0.00100 1 04/01/2023 21:25 WG2034199 1,2,3-Trichlorobenzene ND 0.00100 1 04/01/2023 21:25 WG2034199 1,2,4-Trichlorobenzene ND 0.00100 1 04/01/2023 21:25 WG2034199 1,1,1-Trichloroethane ND 0.00100 1 04/01/2023 21:25 WG2034199 1,1,2-Trichloroethane ND 0.00100 1 04/01/2023 21:25 WG2034199 Trichloroethene ND 0.00100 1 04/01/2023 21:25 WG2034199 Trichlorofluoromethane ND 0.00500 1 04/01/2023 21:25 WG2034199 1,2,3-Trichloropropane ND 0.00250 1 04/01/2023 21:25 WG2034199 1,2,4-Trimethylbenzene ND 0.00100 1 04/01/2023 21:25 WG2034199 1,2,3-Trimethylbenzene ND 0.00100 1 04/01/2023 21:25 WG2034199 1,3,5-Trimethylbenzene ND 0.00100 1 04/01/2023 21:25 WG2034199 Vinyl chloride ND 0.00100 1 04/01/2023 21:25 WG2034199 Xylenes, Total ND 0.00300 1 04/01/2023 21:25 WG2034199 (S) Toluene-d8 97.8 80.0-120 04/01/2023 21:25 WG2034199 (S) 4-Bromofluorobenzene 115 77.0-126 04/01/2023 21:25 WG2034199 (S) 1,2-Dichloroethane-d4 101 70.0-130 04/01/2023 21:25 WG2034199 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00453 0.000400 1 04/01/2023 16:23 WG2032291 (S) Nitrobenzene-d5 50.4 10.0-120 04/01/2023 16:23 WG2032291 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 26 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 26 of 63 SAMPLE RESULTS - 09 L1599335 MW-8 Collected date/time: 03/28/23 13:10 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/04/2023 17:51 WG2032521 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.180 0.0100 1 03/30/2023 21:48 WG2032546 Barium,Dissolved 0.326 0.00500 1 03/31/2023 12:37 WG2032546 Cadmium,Dissolved ND 0.00200 1 03/30/2023 21:48 WG2032546 Chromium,Dissolved ND 0.0100 1 03/30/2023 21:48 WG2032546 Iron,Dissolved 0.504 0.100 1 03/30/2023 21:48 WG2032546 Lead,Dissolved ND 0.00600 1 03/30/2023 21:48 WG2032546 Manganese,Dissolved 0.0296 0.0100 1 03/30/2023 21:48 WG2032546 Selenium,Dissolved ND 0.0100 1 03/30/2023 21:48 WG2032546 Silver,Dissolved ND 0.00500 1 03/30/2023 21:48 WG2032546 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND J4 0.0500 1 04/01/2023 21:43 WG2034199 Acrolein ND 0.0500 1 04/01/2023 21:43 WG2034199 Acrylonitrile ND 0.0100 1 04/01/2023 21:43 WG2034199 Benzene ND 0.00100 1 04/01/2023 21:43 WG2034199 Bromobenzene ND 0.00100 1 04/01/2023 21:43 WG2034199 Bromodichloromethane ND 0.00100 1 04/01/2023 21:43 WG2034199 Bromoform ND 0.00100 1 04/01/2023 21:43 WG2034199 Bromomethane ND 0.00500 1 04/01/2023 21:43 WG2034199 n-Butylbenzene ND 0.00100 1 04/01/2023 21:43 WG2034199 sec-Butylbenzene ND 0.00100 1 04/01/2023 21:43 WG2034199 tert-Butylbenzene ND 0.00100 1 04/01/2023 21:43 WG2034199 Carbon tetrachloride ND 0.00100 1 04/01/2023 21:43 WG2034199 Chlorobenzene ND 0.00100 1 04/01/2023 21:43 WG2034199 Chlorodibromomethane ND 0.00100 1 04/01/2023 21:43 WG2034199 Chloroethane ND 0.00500 1 04/01/2023 21:43 WG2034199 Chloroform ND 0.00500 1 04/01/2023 21:43 WG2034199 Chloromethane ND 0.00250 1 04/01/2023 21:43 WG2034199 2-Chlorotoluene ND 0.00100 1 04/01/2023 21:43 WG2034199 4-Chlorotoluene ND 0.00100 1 04/01/2023 21:43 WG2034199 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/01/2023 21:43 WG2034199 1,2-Dibromoethane ND 0.00100 1 04/01/2023 21:43 WG2034199 Dibromomethane ND 0.00100 1 04/01/2023 21:43 WG2034199 1,2-Dichlorobenzene ND 0.00100 1 04/01/2023 21:43 WG2034199 1,3-Dichlorobenzene ND 0.00100 1 04/01/2023 21:43 WG2034199 1,4-Dichlorobenzene ND 0.00100 1 04/01/2023 21:43 WG2034199 Dichlorodifluoromethane ND 0.00500 1 04/01/2023 21:43 WG2034199 1,1-Dichloroethane ND 0.00100 1 04/01/2023 21:43 WG2034199 1,2-Dichloroethane ND 0.00100 1 04/01/2023 21:43 WG2034199 1,1-Dichloroethene ND 0.00100 1 04/01/2023 21:43 WG2034199 cis-1,2-Dichloroethene ND 0.00100 1 04/01/2023 21:43 WG2034199 trans-1,2-Dichloroethene ND 0.00100 1 04/01/2023 21:43 WG2034199 1,2-Dichloropropane ND 0.00100 1 04/01/2023 21:43 WG2034199 1,1-Dichloropropene ND 0.00100 1 04/01/2023 21:43 WG2034199 1,3-Dichloropropane ND 0.00100 1 04/01/2023 21:43 WG2034199 cis-1,3-Dichloropropene ND 0.00100 1 04/01/2023 21:43 WG2034199 trans-1,3-Dichloropropene ND 0.00100 1 04/01/2023 21:43 WG2034199 2,2-Dichloropropane ND 0.00100 1 04/01/2023 21:43 WG2034199 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 27 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 27 of 63 SAMPLE RESULTS - 09 L1599335 MW-8 Collected date/time: 03/28/23 13:10 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/01/2023 21:43 WG2034199 Ethylbenzene ND 0.00100 1 04/01/2023 21:43 WG2034199 Hexachloro-1,3-butadiene ND 0.00100 1 04/01/2023 21:43 WG2034199 Isopropylbenzene ND 0.00100 1 04/01/2023 21:43 WG2034199 p-Isopropyltoluene ND 0.00100 1 04/01/2023 21:43 WG2034199 2-Butanone (MEK)ND 0.0100 1 04/01/2023 21:43 WG2034199 Methylene Chloride ND 0.00500 1 04/01/2023 21:43 WG2034199 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/01/2023 21:43 WG2034199 Methyl tert-butyl ether ND 0.00100 1 04/01/2023 21:43 WG2034199 Naphthalene ND 0.00500 1 04/01/2023 21:43 WG2034199 n-Propylbenzene ND 0.00100 1 04/01/2023 21:43 WG2034199 Styrene ND 0.00100 1 04/01/2023 21:43 WG2034199 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/01/2023 21:43 WG2034199 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/01/2023 21:43 WG2034199 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/01/2023 21:43 WG2034199 Tetrachloroethene ND 0.00100 1 04/01/2023 21:43 WG2034199 Toluene ND 0.00100 1 04/01/2023 21:43 WG2034199 1,2,3-Trichlorobenzene ND 0.00100 1 04/01/2023 21:43 WG2034199 1,2,4-Trichlorobenzene ND 0.00100 1 04/01/2023 21:43 WG2034199 1,1,1-Trichloroethane ND 0.00100 1 04/01/2023 21:43 WG2034199 1,1,2-Trichloroethane ND 0.00100 1 04/01/2023 21:43 WG2034199 Trichloroethene ND 0.00100 1 04/01/2023 21:43 WG2034199 Trichlorofluoromethane ND 0.00500 1 04/01/2023 21:43 WG2034199 1,2,3-Trichloropropane ND 0.00250 1 04/01/2023 21:43 WG2034199 1,2,4-Trimethylbenzene ND 0.00100 1 04/01/2023 21:43 WG2034199 1,2,3-Trimethylbenzene ND 0.00100 1 04/01/2023 21:43 WG2034199 1,3,5-Trimethylbenzene ND 0.00100 1 04/01/2023 21:43 WG2034199 Vinyl chloride ND 0.00100 1 04/01/2023 21:43 WG2034199 Xylenes, Total ND 0.00300 1 04/01/2023 21:43 WG2034199 (S) Toluene-d8 97.2 80.0-120 04/01/2023 21:43 WG2034199 (S) 4-Bromofluorobenzene 114 77.0-126 04/01/2023 21:43 WG2034199 (S) 1,2-Dichloroethane-d4 107 70.0-130 04/01/2023 21:43 WG2034199 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane ND 0.000400 1 04/01/2023 12:31 WG2032291 (S) Nitrobenzene-d5 52.2 10.0-120 04/01/2023 12:31 WG2032291 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 28 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 28 of 63 SAMPLE RESULTS - 10 L1599335 MW-15 Collected date/time: 03/28/23 13:50 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/04/2023 17:53 WG2032521 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0174 0.0100 1 03/30/2023 21:51 WG2032546 Barium,Dissolved 0.204 0.00500 1 03/31/2023 12:39 WG2032546 Cadmium,Dissolved ND 0.00200 1 03/30/2023 21:51 WG2032546 Chromium,Dissolved ND 0.0100 1 03/30/2023 21:51 WG2032546 Iron,Dissolved ND 0.100 1 03/30/2023 21:51 WG2032546 Lead,Dissolved ND 0.00600 1 03/30/2023 21:51 WG2032546 Manganese,Dissolved 0.253 0.0100 1 03/30/2023 21:51 WG2032546 Selenium,Dissolved ND 0.0100 1 03/30/2023 21:51 WG2032546 Silver,Dissolved ND 0.00500 1 03/30/2023 21:51 WG2032546 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND J4 0.0500 1 04/01/2023 22:02 WG2034199 Acrolein ND 0.0500 1 04/01/2023 22:02 WG2034199 Acrylonitrile ND 0.0100 1 04/01/2023 22:02 WG2034199 Benzene ND 0.00100 1 04/01/2023 22:02 WG2034199 Bromobenzene ND 0.00100 1 04/01/2023 22:02 WG2034199 Bromodichloromethane ND 0.00100 1 04/01/2023 22:02 WG2034199 Bromoform ND 0.00100 1 04/01/2023 22:02 WG2034199 Bromomethane ND 0.00500 1 04/01/2023 22:02 WG2034199 n-Butylbenzene ND 0.00100 1 04/01/2023 22:02 WG2034199 sec-Butylbenzene ND 0.00100 1 04/01/2023 22:02 WG2034199 tert-Butylbenzene ND 0.00100 1 04/01/2023 22:02 WG2034199 Carbon tetrachloride ND 0.00100 1 04/01/2023 22:02 WG2034199 Chlorobenzene ND 0.00100 1 04/01/2023 22:02 WG2034199 Chlorodibromomethane ND 0.00100 1 04/01/2023 22:02 WG2034199 Chloroethane ND 0.00500 1 04/01/2023 22:02 WG2034199 Chloroform ND 0.00500 1 04/01/2023 22:02 WG2034199 Chloromethane ND 0.00250 1 04/01/2023 22:02 WG2034199 2-Chlorotoluene ND 0.00100 1 04/01/2023 22:02 WG2034199 4-Chlorotoluene ND 0.00100 1 04/01/2023 22:02 WG2034199 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/01/2023 22:02 WG2034199 1,2-Dibromoethane ND 0.00100 1 04/01/2023 22:02 WG2034199 Dibromomethane ND 0.00100 1 04/01/2023 22:02 WG2034199 1,2-Dichlorobenzene ND 0.00100 1 04/01/2023 22:02 WG2034199 1,3-Dichlorobenzene ND 0.00100 1 04/01/2023 22:02 WG2034199 1,4-Dichlorobenzene ND 0.00100 1 04/01/2023 22:02 WG2034199 Dichlorodifluoromethane ND 0.00500 1 04/01/2023 22:02 WG2034199 1,1-Dichloroethane 0.0189 0.00100 1 04/01/2023 22:02 WG2034199 1,2-Dichloroethane ND 0.00100 1 04/01/2023 22:02 WG2034199 1,1-Dichloroethene 0.0503 0.00100 1 04/01/2023 22:02 WG2034199 cis-1,2-Dichloroethene 0.00126 0.00100 1 04/01/2023 22:02 WG2034199 trans-1,2-Dichloroethene ND 0.00100 1 04/01/2023 22:02 WG2034199 1,2-Dichloropropane ND 0.00100 1 04/01/2023 22:02 WG2034199 1,1-Dichloropropene ND 0.00100 1 04/01/2023 22:02 WG2034199 1,3-Dichloropropane ND 0.00100 1 04/01/2023 22:02 WG2034199 cis-1,3-Dichloropropene ND 0.00100 1 04/01/2023 22:02 WG2034199 trans-1,3-Dichloropropene ND 0.00100 1 04/01/2023 22:02 WG2034199 2,2-Dichloropropane ND 0.00100 1 04/01/2023 22:02 WG2034199 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 29 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 29 of 63 SAMPLE RESULTS - 10 L1599335 MW-15 Collected date/time: 03/28/23 13:50 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/01/2023 22:02 WG2034199 Ethylbenzene ND 0.00100 1 04/01/2023 22:02 WG2034199 Hexachloro-1,3-butadiene ND 0.00100 1 04/01/2023 22:02 WG2034199 Isopropylbenzene ND 0.00100 1 04/01/2023 22:02 WG2034199 p-Isopropyltoluene ND 0.00100 1 04/01/2023 22:02 WG2034199 2-Butanone (MEK)ND 0.0100 1 04/01/2023 22:02 WG2034199 Methylene Chloride ND 0.00500 1 04/01/2023 22:02 WG2034199 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/01/2023 22:02 WG2034199 Methyl tert-butyl ether ND 0.00100 1 04/01/2023 22:02 WG2034199 Naphthalene ND 0.00500 1 04/01/2023 22:02 WG2034199 n-Propylbenzene ND 0.00100 1 04/01/2023 22:02 WG2034199 Styrene ND 0.00100 1 04/01/2023 22:02 WG2034199 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/01/2023 22:02 WG2034199 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/01/2023 22:02 WG2034199 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/01/2023 22:02 WG2034199 Tetrachloroethene ND 0.00100 1 04/01/2023 22:02 WG2034199 Toluene ND 0.00100 1 04/01/2023 22:02 WG2034199 1,2,3-Trichlorobenzene ND 0.00100 1 04/01/2023 22:02 WG2034199 1,2,4-Trichlorobenzene ND 0.00100 1 04/01/2023 22:02 WG2034199 1,1,1-Trichloroethane ND 0.00100 1 04/01/2023 22:02 WG2034199 1,1,2-Trichloroethane ND 0.00100 1 04/01/2023 22:02 WG2034199 Trichloroethene ND 0.00100 1 04/01/2023 22:02 WG2034199 Trichlorofluoromethane ND 0.00500 1 04/01/2023 22:02 WG2034199 1,2,3-Trichloropropane ND 0.00250 1 04/01/2023 22:02 WG2034199 1,2,4-Trimethylbenzene ND 0.00100 1 04/01/2023 22:02 WG2034199 1,2,3-Trimethylbenzene ND 0.00100 1 04/01/2023 22:02 WG2034199 1,3,5-Trimethylbenzene ND 0.00100 1 04/01/2023 22:02 WG2034199 Vinyl chloride ND 0.00100 1 04/01/2023 22:02 WG2034199 Xylenes, Total ND 0.00300 1 04/01/2023 22:02 WG2034199 (S) Toluene-d8 97.9 80.0-120 04/01/2023 22:02 WG2034199 (S) 4-Bromofluorobenzene 121 77.0-126 04/01/2023 22:02 WG2034199 (S) 1,2-Dichloroethane-d4 117 70.0-130 04/01/2023 22:02 WG2034199 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 04/02/2023 00:15 WG2033242 Acenaphthylene ND 0.00100 1 04/02/2023 00:15 WG2033242 Anthracene ND 0.00100 1 04/02/2023 00:15 WG2033242 Benzidine ND J4 0.0100 1 04/06/2023 16:52 WG2033242 Benzo(a)anthracene ND 0.00100 1 04/02/2023 00:15 WG2033242 Benzo(b)fluoranthene ND 0.00100 1 04/02/2023 00:15 WG2033242 Benzo(k)fluoranthene ND 0.00100 1 04/02/2023 00:15 WG2033242 Benzo(g,h,i)perylene ND 0.00100 1 04/02/2023 00:15 WG2033242 Benzo(a)pyrene ND 0.00100 1 04/02/2023 00:15 WG2033242 Bis(2-chlorethoxy)methane ND 0.0100 1 04/02/2023 00:15 WG2033242 Bis(2-chloroethyl)ether ND 0.0100 1 04/02/2023 00:15 WG2033242 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 04/02/2023 00:15 WG2033242 4-Bromophenyl-phenylether ND 0.0100 1 04/02/2023 00:15 WG2033242 2-Chloronaphthalene ND 0.00100 1 04/02/2023 00:15 WG2033242 4-Chlorophenyl-phenylether ND 0.0100 1 04/02/2023 00:15 WG2033242 Chrysene ND 0.00100 1 04/02/2023 00:15 WG2033242 Dibenz(a,h)anthracene ND 0.00100 1 04/02/2023 00:15 WG2033242 1,2-Dichlorobenzene ND 0.0100 1 04/02/2023 00:15 WG2033242 1,3-Dichlorobenzene ND 0.0100 1 04/02/2023 00:15 WG2033242 1,4-Dichlorobenzene ND 0.0100 1 04/02/2023 00:15 WG2033242 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 30 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 30 of 63 SAMPLE RESULTS - 10 L1599335 MW-15 Collected date/time: 03/28/23 13:50 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 04/02/2023 00:15 WG2033242 2,4-Dinitrotoluene ND 0.0100 1 04/02/2023 00:15 WG2033242 2,6-Dinitrotoluene ND 0.0100 1 04/02/2023 00:15 WG2033242 Fluoranthene ND 0.00100 1 04/02/2023 00:15 WG2033242 Fluorene ND 0.00100 1 04/02/2023 00:15 WG2033242 Hexachlorobenzene ND 0.00100 1 04/02/2023 00:15 WG2033242 Hexachloro-1,3-butadiene ND 0.0100 1 04/02/2023 00:15 WG2033242 Hexachlorocyclopentadiene ND 0.0100 1 04/02/2023 00:15 WG2033242 Hexachloroethane ND 0.0100 1 04/02/2023 00:15 WG2033242 Indeno(1,2,3-cd)pyrene ND 0.00100 1 04/02/2023 00:15 WG2033242 Isophorone ND 0.0100 1 04/02/2023 00:15 WG2033242 Naphthalene ND 0.00100 1 04/02/2023 00:15 WG2033242 Nitrobenzene ND 0.0100 1 04/02/2023 00:15 WG2033242 n-Nitrosodimethylamine ND 0.0100 1 04/02/2023 00:15 WG2033242 n-Nitrosodiphenylamine ND 0.0100 1 04/02/2023 00:15 WG2033242 n-Nitrosodi-n-propylamine ND 0.0100 1 04/02/2023 00:15 WG2033242 Phenanthrene ND 0.00100 1 04/02/2023 00:15 WG2033242 Benzylbutyl phthalate ND 0.00300 1 04/02/2023 00:15 WG2033242 Bis(2-ethylhexyl)phthalate ND 0.00300 1 04/02/2023 00:15 WG2033242 Di-n-butyl phthalate ND 0.00300 1 04/02/2023 00:15 WG2033242 Diethyl phthalate ND 0.00300 1 04/02/2023 00:15 WG2033242 Dimethyl phthalate ND 0.00300 1 04/02/2023 00:15 WG2033242 Di-n-octyl phthalate ND 0.00300 1 04/02/2023 00:15 WG2033242 Pyrene ND 0.00100 1 04/02/2023 00:15 WG2033242 1,2,4-Trichlorobenzene ND 0.0100 1 04/02/2023 00:15 WG2033242 4-Chloro-3-methylphenol ND 0.0100 1 04/02/2023 00:15 WG2033242 2-Chlorophenol ND 0.0100 1 04/02/2023 00:15 WG2033242 2,4-Dichlorophenol ND 0.0100 1 04/02/2023 00:15 WG2033242 2,4-Dimethylphenol ND 0.0100 1 04/02/2023 00:15 WG2033242 4,6-Dinitro-2-methylphenol ND 0.0100 1 04/02/2023 00:15 WG2033242 2,4-Dinitrophenol ND 0.0100 1 04/02/2023 00:15 WG2033242 2-Nitrophenol ND 0.0100 1 04/02/2023 00:15 WG2033242 4-Nitrophenol ND 0.0100 1 04/02/2023 00:15 WG2033242 Pentachlorophenol ND 0.0100 1 04/02/2023 00:15 WG2033242 Phenol ND 0.0100 1 04/02/2023 00:15 WG2033242 2,4,6-Trichlorophenol ND 0.0100 1 04/02/2023 00:15 WG2033242 (S) 2-Fluorophenol 17.7 10.0-120 04/06/2023 16:52 WG2033242 (S) 2-Fluorophenol 17.1 10.0-120 04/02/2023 00:15 WG2033242 (S) Phenol-d5 12.4 10.0-120 04/02/2023 00:15 WG2033242 (S) Phenol-d5 12.3 10.0-120 04/06/2023 16:52 WG2033242 (S) Nitrobenzene-d5 44.9 10.0-127 04/06/2023 16:52 WG2033242 (S) Nitrobenzene-d5 44.4 10.0-127 04/02/2023 00:15 WG2033242 (S) 2-Fluorobiphenyl 42.7 10.0-130 04/02/2023 00:15 WG2033242 (S) 2-Fluorobiphenyl 45.8 10.0-130 04/06/2023 16:52 WG2033242 (S) 2,4,6-Tribromophenol 26.9 10.0-155 04/06/2023 16:52 WG2033242 (S) 2,4,6-Tribromophenol 35.5 10.0-155 04/02/2023 00:15 WG2033242 (S) p-Terphenyl-d14 33.1 10.0-128 04/06/2023 16:52 WG2033242 (S) p-Terphenyl-d14 36.6 10.0-128 04/02/2023 00:15 WG2033242 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.187 0.000400 1 04/01/2023 12:50 WG2032291 (S) Nitrobenzene-d5 49.2 10.0-120 04/01/2023 12:50 WG2032291 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 31 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 31 of 63 SAMPLE RESULTS - 11 L1599335 GMW-4 Collected date/time: 03/28/23 15:00 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/04/2023 17:55 WG2032521 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 03/30/2023 21:54 WG2032546 Barium,Dissolved 0.135 0.00500 1 03/31/2023 12:42 WG2032546 Cadmium,Dissolved ND 0.00200 1 03/30/2023 21:54 WG2032546 Chromium,Dissolved ND 0.0100 1 03/30/2023 21:54 WG2032546 Iron,Dissolved ND 0.100 1 03/30/2023 21:54 WG2032546 Lead,Dissolved ND 0.00600 1 03/30/2023 21:54 WG2032546 Manganese,Dissolved ND 0.0100 1 03/30/2023 21:54 WG2032546 Selenium,Dissolved ND 0.0100 1 03/30/2023 21:54 WG2032546 Silver,Dissolved ND 0.00500 1 03/30/2023 21:54 WG2032546 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND J4 0.0500 1 04/01/2023 22:21 WG2034199 Acrolein ND 0.0500 1 04/01/2023 22:21 WG2034199 Acrylonitrile ND 0.0100 1 04/01/2023 22:21 WG2034199 Benzene ND 0.00100 1 04/01/2023 22:21 WG2034199 Bromobenzene ND 0.00100 1 04/01/2023 22:21 WG2034199 Bromodichloromethane ND 0.00100 1 04/01/2023 22:21 WG2034199 Bromoform ND 0.00100 1 04/01/2023 22:21 WG2034199 Bromomethane ND 0.00500 1 04/01/2023 22:21 WG2034199 n-Butylbenzene ND 0.00100 1 04/01/2023 22:21 WG2034199 sec-Butylbenzene ND 0.00100 1 04/01/2023 22:21 WG2034199 tert-Butylbenzene ND 0.00100 1 04/01/2023 22:21 WG2034199 Carbon tetrachloride ND 0.00100 1 04/01/2023 22:21 WG2034199 Chlorobenzene ND 0.00100 1 04/01/2023 22:21 WG2034199 Chlorodibromomethane ND 0.00100 1 04/01/2023 22:21 WG2034199 Chloroethane ND 0.00500 1 04/01/2023 22:21 WG2034199 Chloroform ND 0.00500 1 04/01/2023 22:21 WG2034199 Chloromethane ND 0.00250 1 04/01/2023 22:21 WG2034199 2-Chlorotoluene ND 0.00100 1 04/01/2023 22:21 WG2034199 4-Chlorotoluene ND 0.00100 1 04/01/2023 22:21 WG2034199 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/01/2023 22:21 WG2034199 1,2-Dibromoethane ND 0.00100 1 04/01/2023 22:21 WG2034199 Dibromomethane ND 0.00100 1 04/01/2023 22:21 WG2034199 1,2-Dichlorobenzene ND 0.00100 1 04/01/2023 22:21 WG2034199 1,3-Dichlorobenzene ND 0.00100 1 04/01/2023 22:21 WG2034199 1,4-Dichlorobenzene ND 0.00100 1 04/01/2023 22:21 WG2034199 Dichlorodifluoromethane ND 0.00500 1 04/01/2023 22:21 WG2034199 1,1-Dichloroethane 0.00545 0.00100 1 04/01/2023 22:21 WG2034199 1,2-Dichloroethane ND 0.00100 1 04/01/2023 22:21 WG2034199 1,1-Dichloroethene 0.0808 0.00500 5 04/05/2023 23:28 WG2036467 cis-1,2-Dichloroethene ND 0.00100 1 04/01/2023 22:21 WG2034199 trans-1,2-Dichloroethene ND 0.00100 1 04/01/2023 22:21 WG2034199 1,2-Dichloropropane ND 0.00100 1 04/01/2023 22:21 WG2034199 1,1-Dichloropropene ND 0.00100 1 04/01/2023 22:21 WG2034199 1,3-Dichloropropane ND 0.00100 1 04/01/2023 22:21 WG2034199 cis-1,3-Dichloropropene ND 0.00100 1 04/01/2023 22:21 WG2034199 trans-1,3-Dichloropropene ND 0.00100 1 04/01/2023 22:21 WG2034199 2,2-Dichloropropane ND 0.00100 1 04/01/2023 22:21 WG2034199 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 32 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 32 of 63 SAMPLE RESULTS - 11 L1599335 GMW-4 Collected date/time: 03/28/23 15:00 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/01/2023 22:21 WG2034199 Ethylbenzene ND 0.00100 1 04/01/2023 22:21 WG2034199 Hexachloro-1,3-butadiene ND 0.00100 1 04/01/2023 22:21 WG2034199 Isopropylbenzene ND 0.00100 1 04/01/2023 22:21 WG2034199 p-Isopropyltoluene ND 0.00100 1 04/01/2023 22:21 WG2034199 2-Butanone (MEK)ND 0.0100 1 04/01/2023 22:21 WG2034199 Methylene Chloride ND 0.00500 1 04/01/2023 22:21 WG2034199 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/01/2023 22:21 WG2034199 Methyl tert-butyl ether ND 0.00100 1 04/01/2023 22:21 WG2034199 Naphthalene ND 0.00500 1 04/01/2023 22:21 WG2034199 n-Propylbenzene ND 0.00100 1 04/01/2023 22:21 WG2034199 Styrene ND 0.00100 1 04/01/2023 22:21 WG2034199 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/01/2023 22:21 WG2034199 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/01/2023 22:21 WG2034199 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/01/2023 22:21 WG2034199 Tetrachloroethene ND 0.00100 1 04/01/2023 22:21 WG2034199 Toluene ND 0.00100 1 04/01/2023 22:21 WG2034199 1,2,3-Trichlorobenzene ND 0.00100 1 04/01/2023 22:21 WG2034199 1,2,4-Trichlorobenzene ND 0.00100 1 04/01/2023 22:21 WG2034199 1,1,1-Trichloroethane 0.0254 0.00100 1 04/01/2023 22:21 WG2034199 1,1,2-Trichloroethane ND 0.00100 1 04/01/2023 22:21 WG2034199 Trichloroethene ND 0.00100 1 04/01/2023 22:21 WG2034199 Trichlorofluoromethane ND 0.00500 1 04/01/2023 22:21 WG2034199 1,2,3-Trichloropropane ND 0.00250 1 04/01/2023 22:21 WG2034199 1,2,4-Trimethylbenzene ND 0.00100 1 04/01/2023 22:21 WG2034199 1,2,3-Trimethylbenzene ND 0.00100 1 04/01/2023 22:21 WG2034199 1,3,5-Trimethylbenzene ND 0.00100 1 04/01/2023 22:21 WG2034199 Vinyl chloride ND 0.00100 1 04/01/2023 22:21 WG2034199 Xylenes, Total ND 0.00300 1 04/01/2023 22:21 WG2034199 (S) Toluene-d8 96.8 80.0-120 04/01/2023 22:21 WG2034199 (S) Toluene-d8 105 80.0-120 04/05/2023 23:28 WG2036467 (S) 4-Bromofluorobenzene 116 77.0-126 04/01/2023 22:21 WG2034199 (S) 4-Bromofluorobenzene 97.6 77.0-126 04/05/2023 23:28 WG2036467 (S) 1,2-Dichloroethane-d4 111 70.0-130 04/01/2023 22:21 WG2034199 (S) 1,2-Dichloroethane-d4 104 70.0-130 04/05/2023 23:28 WG2036467 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 04/02/2023 11:57 WG2033244 Acenaphthylene ND 0.00100 1 04/02/2023 11:57 WG2033244 Anthracene ND 0.00100 1 04/02/2023 11:57 WG2033244 Benzidine ND J4 0.0100 1 04/02/2023 11:57 WG2033244 Benzo(a)anthracene ND 0.00100 1 04/02/2023 11:57 WG2033244 Benzo(b)fluoranthene ND 0.00100 1 04/02/2023 11:57 WG2033244 Benzo(k)fluoranthene ND 0.00100 1 04/02/2023 11:57 WG2033244 Benzo(g,h,i)perylene ND 0.00100 1 04/02/2023 11:57 WG2033244 Benzo(a)pyrene ND 0.00100 1 04/02/2023 11:57 WG2033244 Bis(2-chlorethoxy)methane ND 0.0100 1 04/02/2023 11:57 WG2033244 Bis(2-chloroethyl)ether ND 0.0100 1 04/02/2023 11:57 WG2033244 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 04/02/2023 11:57 WG2033244 4-Bromophenyl-phenylether ND 0.0100 1 04/02/2023 11:57 WG2033244 2-Chloronaphthalene ND 0.00100 1 04/02/2023 11:57 WG2033244 4-Chlorophenyl-phenylether ND 0.0100 1 04/02/2023 11:57 WG2033244 Chrysene ND 0.00100 1 04/02/2023 11:57 WG2033244 Dibenz(a,h)anthracene ND 0.00100 1 04/02/2023 11:57 WG2033244 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 33 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 33 of 63 SAMPLE RESULTS - 11 L1599335 GMW-4 Collected date/time: 03/28/23 15:00 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,2-Dichlorobenzene ND 0.0100 1 04/02/2023 11:57 WG2033244 1,3-Dichlorobenzene ND 0.0100 1 04/02/2023 11:57 WG2033244 1,4-Dichlorobenzene ND 0.0100 1 04/02/2023 11:57 WG2033244 3,3-Dichlorobenzidine ND 0.0100 1 04/02/2023 11:57 WG2033244 2,4-Dinitrotoluene ND 0.0100 1 04/02/2023 11:57 WG2033244 2,6-Dinitrotoluene ND 0.0100 1 04/02/2023 11:57 WG2033244 Fluoranthene ND 0.00100 1 04/02/2023 11:57 WG2033244 Fluorene ND 0.00100 1 04/02/2023 11:57 WG2033244 Hexachlorobenzene ND 0.00100 1 04/02/2023 11:57 WG2033244 Hexachloro-1,3-butadiene ND 0.0100 1 04/02/2023 11:57 WG2033244 Hexachlorocyclopentadiene ND 0.0100 1 04/02/2023 11:57 WG2033244 Hexachloroethane ND 0.0100 1 04/02/2023 11:57 WG2033244 Indeno(1,2,3-cd)pyrene ND 0.00100 1 04/02/2023 11:57 WG2033244 Isophorone ND 0.0100 1 04/02/2023 11:57 WG2033244 Naphthalene ND 0.00100 1 04/02/2023 11:57 WG2033244 Nitrobenzene ND 0.0100 1 04/02/2023 11:57 WG2033244 n-Nitrosodimethylamine ND 0.0100 1 04/02/2023 11:57 WG2033244 n-Nitrosodiphenylamine ND 0.0100 1 04/02/2023 11:57 WG2033244 n-Nitrosodi-n-propylamine ND 0.0100 1 04/02/2023 11:57 WG2033244 Phenanthrene ND 0.00100 1 04/02/2023 11:57 WG2033244 Benzylbutyl phthalate ND 0.00300 1 04/02/2023 11:57 WG2033244 Bis(2-ethylhexyl)phthalate ND 0.00300 1 04/02/2023 11:57 WG2033244 Di-n-butyl phthalate ND 0.00300 1 04/02/2023 11:57 WG2033244 Diethyl phthalate ND 0.00300 1 04/02/2023 11:57 WG2033244 Dimethyl phthalate ND 0.00300 1 04/02/2023 11:57 WG2033244 Di-n-octyl phthalate ND 0.00300 1 04/02/2023 11:57 WG2033244 Pyrene ND 0.00100 1 04/02/2023 11:57 WG2033244 1,2,4-Trichlorobenzene ND 0.0100 1 04/02/2023 11:57 WG2033244 4-Chloro-3-methylphenol ND 0.0100 1 04/02/2023 11:57 WG2033244 2-Chlorophenol ND 0.0100 1 04/02/2023 11:57 WG2033244 2,4-Dichlorophenol ND 0.0100 1 04/02/2023 11:57 WG2033244 2,4-Dimethylphenol ND 0.0100 1 04/02/2023 11:57 WG2033244 4,6-Dinitro-2-methylphenol ND 0.0100 1 04/02/2023 11:57 WG2033244 2,4-Dinitrophenol ND 0.0100 1 04/02/2023 11:57 WG2033244 2-Nitrophenol ND 0.0100 1 04/02/2023 11:57 WG2033244 4-Nitrophenol ND 0.0100 1 04/02/2023 11:57 WG2033244 Pentachlorophenol ND 0.0100 1 04/02/2023 11:57 WG2033244 Phenol ND 0.0100 1 04/02/2023 11:57 WG2033244 2,4,6-Trichlorophenol ND 0.0100 1 04/02/2023 11:57 WG2033244 (S) 2-Fluorophenol 17.9 10.0-120 04/02/2023 11:57 WG2033244 (S) Phenol-d5 11.7 10.0-120 04/02/2023 11:57 WG2033244 (S) Nitrobenzene-d5 44.1 10.0-127 04/02/2023 11:57 WG2033244 (S) 2-Fluorobiphenyl 55.4 10.0-130 04/02/2023 11:57 WG2033244 (S) 2,4,6-Tribromophenol 40.5 10.0-155 04/02/2023 11:57 WG2033244 (S) p-Terphenyl-d14 58.0 10.0-128 04/02/2023 11:57 WG2033244 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.0517 0.000400 1 04/01/2023 13:10 WG2032291 (S) Nitrobenzene-d5 48.9 10.0-120 04/01/2023 13:10 WG2032291 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 34 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 34 of 63 SAMPLE RESULTS - 12 L1599335 MW-5 Collected date/time: 03/28/23 16:35 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/04/2023 17:57 WG2032521 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.264 0.0100 1 03/30/2023 19:01 WG2032549 Barium,Dissolved 0.715 0.00500 1 03/31/2023 00:11 WG2032549 Cadmium,Dissolved ND 0.00200 1 03/30/2023 19:01 WG2032549 Chromium,Dissolved ND 0.0100 1 03/30/2023 19:01 WG2032549 Iron,Dissolved 0.129 0.100 1 03/30/2023 19:01 WG2032549 Lead,Dissolved ND 0.00600 1 03/30/2023 19:01 WG2032549 Manganese,Dissolved 0.103 0.0100 1 03/30/2023 19:01 WG2032549 Selenium,Dissolved 0.0111 0.0100 1 03/30/2023 19:01 WG2032549 Silver,Dissolved ND 0.00500 1 03/30/2023 19:01 WG2032549 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND J4 0.0500 1 04/01/2023 22:40 WG2034199 Acrolein ND 0.0500 1 04/01/2023 22:40 WG2034199 Acrylonitrile ND 0.0100 1 04/01/2023 22:40 WG2034199 Benzene ND 0.00100 1 04/01/2023 22:40 WG2034199 Bromobenzene ND 0.00100 1 04/01/2023 22:40 WG2034199 Bromodichloromethane ND 0.00100 1 04/01/2023 22:40 WG2034199 Bromoform ND 0.00100 1 04/01/2023 22:40 WG2034199 Bromomethane ND 0.00500 1 04/01/2023 22:40 WG2034199 n-Butylbenzene ND 0.00100 1 04/01/2023 22:40 WG2034199 sec-Butylbenzene ND 0.00100 1 04/01/2023 22:40 WG2034199 tert-Butylbenzene ND 0.00100 1 04/01/2023 22:40 WG2034199 Carbon tetrachloride ND 0.00100 1 04/01/2023 22:40 WG2034199 Chlorobenzene ND 0.00100 1 04/01/2023 22:40 WG2034199 Chlorodibromomethane ND 0.00100 1 04/01/2023 22:40 WG2034199 Chloroethane ND 0.00500 1 04/01/2023 22:40 WG2034199 Chloroform ND 0.00500 1 04/01/2023 22:40 WG2034199 Chloromethane ND 0.00250 1 04/01/2023 22:40 WG2034199 2-Chlorotoluene ND 0.00100 1 04/01/2023 22:40 WG2034199 4-Chlorotoluene ND 0.00100 1 04/01/2023 22:40 WG2034199 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/01/2023 22:40 WG2034199 1,2-Dibromoethane ND 0.00100 1 04/01/2023 22:40 WG2034199 Dibromomethane ND 0.00100 1 04/01/2023 22:40 WG2034199 1,2-Dichlorobenzene ND 0.00100 1 04/01/2023 22:40 WG2034199 1,3-Dichlorobenzene ND 0.00100 1 04/01/2023 22:40 WG2034199 1,4-Dichlorobenzene ND 0.00100 1 04/01/2023 22:40 WG2034199 Dichlorodifluoromethane ND 0.00500 1 04/01/2023 22:40 WG2034199 1,1-Dichloroethane 0.00160 0.00100 1 04/01/2023 22:40 WG2034199 1,2-Dichloroethane ND 0.00100 1 04/01/2023 22:40 WG2034199 1,1-Dichloroethene 0.00326 0.00100 1 04/05/2023 19:02 WG2036467 cis-1,2-Dichloroethene ND 0.00100 1 04/01/2023 22:40 WG2034199 trans-1,2-Dichloroethene ND 0.00100 1 04/01/2023 22:40 WG2034199 1,2-Dichloropropane ND 0.00100 1 04/01/2023 22:40 WG2034199 1,1-Dichloropropene ND 0.00100 1 04/01/2023 22:40 WG2034199 1,3-Dichloropropane ND 0.00100 1 04/01/2023 22:40 WG2034199 cis-1,3-Dichloropropene ND 0.00100 1 04/01/2023 22:40 WG2034199 trans-1,3-Dichloropropene ND 0.00100 1 04/01/2023 22:40 WG2034199 2,2-Dichloropropane ND 0.00100 1 04/01/2023 22:40 WG2034199 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 35 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 35 of 63 SAMPLE RESULTS - 12 L1599335 MW-5 Collected date/time: 03/28/23 16:35 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/01/2023 22:40 WG2034199 Ethylbenzene ND 0.00100 1 04/01/2023 22:40 WG2034199 Hexachloro-1,3-butadiene ND 0.00100 1 04/01/2023 22:40 WG2034199 Isopropylbenzene ND 0.00100 1 04/01/2023 22:40 WG2034199 p-Isopropyltoluene ND 0.00100 1 04/01/2023 22:40 WG2034199 2-Butanone (MEK)ND 0.0100 1 04/01/2023 22:40 WG2034199 Methylene Chloride ND 0.00500 1 04/01/2023 22:40 WG2034199 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/01/2023 22:40 WG2034199 Methyl tert-butyl ether ND 0.00100 1 04/01/2023 22:40 WG2034199 Naphthalene ND 0.00500 1 04/01/2023 22:40 WG2034199 n-Propylbenzene ND 0.00100 1 04/01/2023 22:40 WG2034199 Styrene ND 0.00100 1 04/01/2023 22:40 WG2034199 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/01/2023 22:40 WG2034199 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/01/2023 22:40 WG2034199 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/01/2023 22:40 WG2034199 Tetrachloroethene ND 0.00100 1 04/01/2023 22:40 WG2034199 Toluene ND 0.00100 1 04/01/2023 22:40 WG2034199 1,2,3-Trichlorobenzene ND 0.00100 1 04/01/2023 22:40 WG2034199 1,2,4-Trichlorobenzene ND 0.00100 1 04/01/2023 22:40 WG2034199 1,1,1-Trichloroethane ND 0.00100 1 04/01/2023 22:40 WG2034199 1,1,2-Trichloroethane ND 0.00100 1 04/01/2023 22:40 WG2034199 Trichloroethene ND 0.00100 1 04/01/2023 22:40 WG2034199 Trichlorofluoromethane ND 0.00500 1 04/01/2023 22:40 WG2034199 1,2,3-Trichloropropane ND 0.00250 1 04/01/2023 22:40 WG2034199 1,2,4-Trimethylbenzene ND 0.00100 1 04/01/2023 22:40 WG2034199 1,2,3-Trimethylbenzene ND 0.00100 1 04/01/2023 22:40 WG2034199 1,3,5-Trimethylbenzene ND 0.00100 1 04/01/2023 22:40 WG2034199 Vinyl chloride ND 0.00100 1 04/01/2023 22:40 WG2034199 Xylenes, Total ND 0.00300 1 04/01/2023 22:40 WG2034199 (S) Toluene-d8 99.1 80.0-120 04/01/2023 22:40 WG2034199 (S) Toluene-d8 103 80.0-120 04/05/2023 19:02 WG2036467 (S) 4-Bromofluorobenzene 115 77.0-126 04/01/2023 22:40 WG2034199 (S) 4-Bromofluorobenzene 104 77.0-126 04/05/2023 19:02 WG2036467 (S) 1,2-Dichloroethane-d4 108 70.0-130 04/01/2023 22:40 WG2034199 (S) 1,2-Dichloroethane-d4 126 70.0-130 04/05/2023 19:02 WG2036467 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 04/02/2023 12:19 WG2033244 Acenaphthylene ND 0.00100 1 04/02/2023 12:19 WG2033244 Anthracene ND 0.00100 1 04/02/2023 12:19 WG2033244 Benzidine ND J4 0.0100 1 04/02/2023 12:19 WG2033244 Benzo(a)anthracene ND 0.00100 1 04/02/2023 12:19 WG2033244 Benzo(b)fluoranthene ND 0.00100 1 04/02/2023 12:19 WG2033244 Benzo(k)fluoranthene ND 0.00100 1 04/02/2023 12:19 WG2033244 Benzo(g,h,i)perylene ND 0.00100 1 04/02/2023 12:19 WG2033244 Benzo(a)pyrene ND 0.00100 1 04/02/2023 12:19 WG2033244 Bis(2-chlorethoxy)methane ND 0.0100 1 04/02/2023 12:19 WG2033244 Bis(2-chloroethyl)ether ND 0.0100 1 04/02/2023 12:19 WG2033244 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 04/02/2023 12:19 WG2033244 4-Bromophenyl-phenylether ND 0.0100 1 04/02/2023 12:19 WG2033244 2-Chloronaphthalene ND 0.00100 1 04/02/2023 12:19 WG2033244 4-Chlorophenyl-phenylether ND 0.0100 1 04/02/2023 12:19 WG2033244 Chrysene ND 0.00100 1 04/02/2023 12:19 WG2033244 Dibenz(a,h)anthracene ND 0.00100 1 04/02/2023 12:19 WG2033244 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 36 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 36 of 63 SAMPLE RESULTS - 12 L1599335 MW-5 Collected date/time: 03/28/23 16:35 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,2-Dichlorobenzene ND 0.0100 1 04/02/2023 12:19 WG2033244 1,3-Dichlorobenzene ND 0.0100 1 04/02/2023 12:19 WG2033244 1,4-Dichlorobenzene ND 0.0100 1 04/02/2023 12:19 WG2033244 3,3-Dichlorobenzidine ND 0.0100 1 04/02/2023 12:19 WG2033244 2,4-Dinitrotoluene ND 0.0100 1 04/02/2023 12:19 WG2033244 2,6-Dinitrotoluene ND 0.0100 1 04/02/2023 12:19 WG2033244 Fluoranthene ND 0.00100 1 04/02/2023 12:19 WG2033244 Fluorene ND 0.00100 1 04/02/2023 12:19 WG2033244 Hexachlorobenzene ND 0.00100 1 04/02/2023 12:19 WG2033244 Hexachloro-1,3-butadiene ND 0.0100 1 04/02/2023 12:19 WG2033244 Hexachlorocyclopentadiene ND 0.0100 1 04/02/2023 12:19 WG2033244 Hexachloroethane ND 0.0100 1 04/02/2023 12:19 WG2033244 Indeno(1,2,3-cd)pyrene ND 0.00100 1 04/02/2023 12:19 WG2033244 Isophorone ND 0.0100 1 04/02/2023 12:19 WG2033244 Naphthalene ND 0.00100 1 04/02/2023 12:19 WG2033244 Nitrobenzene ND 0.0100 1 04/02/2023 12:19 WG2033244 n-Nitrosodimethylamine ND 0.0100 1 04/02/2023 12:19 WG2033244 n-Nitrosodiphenylamine ND 0.0100 1 04/02/2023 12:19 WG2033244 n-Nitrosodi-n-propylamine ND 0.0100 1 04/02/2023 12:19 WG2033244 Phenanthrene ND 0.00100 1 04/02/2023 12:19 WG2033244 Benzylbutyl phthalate ND 0.00300 1 04/02/2023 12:19 WG2033244 Bis(2-ethylhexyl)phthalate ND 0.00300 1 04/02/2023 12:19 WG2033244 Di-n-butyl phthalate ND 0.00300 1 04/02/2023 12:19 WG2033244 Diethyl phthalate ND 0.00300 1 04/02/2023 12:19 WG2033244 Dimethyl phthalate ND 0.00300 1 04/02/2023 12:19 WG2033244 Di-n-octyl phthalate ND 0.00300 1 04/02/2023 12:19 WG2033244 Pyrene ND 0.00100 1 04/02/2023 12:19 WG2033244 1,2,4-Trichlorobenzene ND 0.0100 1 04/02/2023 12:19 WG2033244 4-Chloro-3-methylphenol ND 0.0100 1 04/02/2023 12:19 WG2033244 2-Chlorophenol ND 0.0100 1 04/02/2023 12:19 WG2033244 2,4-Dichlorophenol ND 0.0100 1 04/02/2023 12:19 WG2033244 2,4-Dimethylphenol ND 0.0100 1 04/02/2023 12:19 WG2033244 4,6-Dinitro-2-methylphenol ND 0.0100 1 04/02/2023 12:19 WG2033244 2,4-Dinitrophenol ND 0.0100 1 04/02/2023 12:19 WG2033244 2-Nitrophenol ND 0.0100 1 04/02/2023 12:19 WG2033244 4-Nitrophenol ND 0.0100 1 04/02/2023 12:19 WG2033244 Pentachlorophenol ND 0.0100 1 04/02/2023 12:19 WG2033244 Phenol ND 0.0100 1 04/02/2023 12:19 WG2033244 2,4,6-Trichlorophenol ND 0.0100 1 04/02/2023 12:19 WG2033244 (S) 2-Fluorophenol 22.0 10.0-120 04/02/2023 12:19 WG2033244 (S) Phenol-d5 13.0 10.0-120 04/02/2023 12:19 WG2033244 (S) Nitrobenzene-d5 47.3 10.0-127 04/02/2023 12:19 WG2033244 (S) 2-Fluorobiphenyl 53.8 10.0-130 04/02/2023 12:19 WG2033244 (S) 2,4,6-Tribromophenol 44.7 10.0-155 04/02/2023 12:19 WG2033244 (S) p-Terphenyl-d14 51.5 10.0-128 04/02/2023 12:19 WG2033244 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.0132 0.000400 1 04/01/2023 13:29 WG2032291 (S) Nitrobenzene-d5 48.4 10.0-120 04/01/2023 13:29 WG2032291 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 37 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 37 of 63 QUALITY CONTROL SUMMARYWG2032521 Mercury by Method 7470A L1599335-01,02,03,04,05,06,07,08,09,10,11,12 Method Blank (MB) (MB) R3909253-1 04/04/23 17:20 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Mercury,Dissolved U 0.000100 0.000200 Laboratory Control Sample (LCS) (LCS) R3909253-2 04/04/23 17:22 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Mercury,Dissolved 0.00300 0.00300 99.9 80.0-120 L1599519-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1599519-01 04/04/23 17:24 • (MS) R3909253-3 04/04/23 17:27 • (MSD) R3909253-4 04/04/23 17:29 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Mercury,Dissolved 0.00300 ND 0.00314 0.00312 105 104 1 75.0-125 0.627 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 38 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 38 of 63 QUALITY CONTROL SUMMARYWG2032546 Metals (ICP) by Method 6010B L1599335-01,02,03,04,05,06,07,08,09,10,11 Method Blank (MB) (MB) R3907630-1 03/30/23 20:43 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Arsenic,Dissolved U 0.00440 0.0100 Cadmium,Dissolved U 0.000479 0.00200 Chromium,Dissolved U 0.00140 0.0100 Iron,Dissolved U 0.0180 0.100 Lead,Dissolved U 0.00299 0.00600 Manganese,Dissolved U 0.000934 0.0100 Selenium,Dissolved U 0.00735 0.0100 Silver,Dissolved U 0.00154 0.00500 Method Blank (MB) (MB) R3907848-1 03/31/23 11:49 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Barium,Dissolved U 0.000736 0.00500 Laboratory Control Sample (LCS) (LCS) R3907630-2 03/30/23 20:45 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Arsenic,Dissolved 1.00 0.935 93.5 80.0-120 Cadmium,Dissolved 1.00 0.947 94.7 80.0-120 Chromium,Dissolved 1.00 0.955 95.5 80.0-120 Iron,Dissolved 10.0 9.96 99.6 80.0-120 Lead,Dissolved 1.00 0.917 91.7 80.0-120 Manganese,Dissolved 1.00 0.880 88.0 80.0-120 Selenium,Dissolved 1.00 0.944 94.4 80.0-120 Silver,Dissolved 0.200 0.192 96.1 80.0-120 Laboratory Control Sample (LCS) (LCS) R3907848-2 03/31/23 11:52 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Barium,Dissolved 1.00 1.01 101 80.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 39 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 39 of 63 QUALITY CONTROL SUMMARYWG2032546 Metals (ICP) by Method 6010B L1599335-01,02,03,04,05,06,07,08,09,10,11 L1599282-06 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1599282-06 03/30/23 20:48 • (MS) R3907630-4 03/30/23 20:53 • (MSD) R3907630-5 03/30/23 20:56 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Arsenic,Dissolved 1.00 ND 0.932 0.936 93.2 93.6 1 75.0-125 0.491 20 Cadmium,Dissolved 1.00 ND 0.947 0.947 94.7 94.7 1 75.0-125 0.0199 20 Chromium,Dissolved 1.00 ND 0.945 0.933 94.5 93.3 1 75.0-125 1.24 20 Iron,Dissolved 10.0 0.258 10.0 9.99 97.7 97.4 1 75.0-125 0.362 20 Lead,Dissolved 1.00 ND 0.909 0.906 90.9 90.6 1 75.0-125 0.312 20 Manganese,Dissolved 1.00 1.27 2.13 2.11 85.5 83.6 1 75.0-125 0.886 20 Selenium,Dissolved 1.00 ND 0.948 0.952 94.8 95.2 1 75.0-125 0.433 20 Silver,Dissolved 0.200 ND 0.193 0.190 96.3 94.9 1 75.0-125 1.40 20 L1599282-06 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1599282-06 03/31/23 11:55 • (MS) R3907848-4 03/31/23 12:00 • (MSD) R3907848-5 03/31/23 12:03 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Barium,Dissolved 1.00 0.0235 1.02 1.03 99.7 100 1 75.0-125 0.528 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 40 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 40 of 63 QUALITY CONTROL SUMMARYWG2032549 Metals (ICP) by Method 6010B L1599335-12 Method Blank (MB) (MB) R3907562-1 03/30/23 18:45 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Arsenic,Dissolved U 0.00440 0.0100 Barium,Dissolved U 0.000736 0.00500 Cadmium,Dissolved U 0.000479 0.00200 Chromium,Dissolved U 0.00140 0.0100 Iron,Dissolved U 0.0180 0.100 Lead,Dissolved U 0.00299 0.00600 Manganese,Dissolved U 0.000934 0.0100 Selenium,Dissolved U 0.00735 0.0100 Silver,Dissolved U 0.00154 0.00500 Laboratory Control Sample (LCS) (LCS) R3907562-2 03/30/23 18:47 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Arsenic,Dissolved 1.00 0.951 95.1 80.0-120 Barium,Dissolved 1.00 1.08 108 80.0-120 Cadmium,Dissolved 1.00 0.959 95.9 80.0-120 Chromium,Dissolved 1.00 0.975 97.5 80.0-120 Iron,Dissolved 10.0 10.1 101 80.0-120 Lead,Dissolved 1.00 0.933 93.3 80.0-120 Manganese,Dissolved 1.00 0.897 89.7 80.0-120 Selenium,Dissolved 1.00 0.971 97.1 80.0-120 Silver,Dissolved 0.200 0.195 97.6 80.0-120 L1599519-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1599519-05 03/30/23 18:50 • (MS) R3907562-4 03/30/23 18:55 • (MSD) R3907562-5 03/30/23 18:58 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Arsenic,Dissolved 1.00 ND 0.965 0.966 96.5 96.6 1 75.0-125 0.0603 20 Cadmium,Dissolved 1.00 ND 0.965 0.966 96.5 96.6 1 75.0-125 0.0776 20 Chromium,Dissolved 1.00 ND 0.963 0.965 96.3 96.5 1 75.0-125 0.153 20 Iron,Dissolved 10.0 20.5 30.0 29.9 95.0 94.5 1 75.0-125 0.157 20 Lead,Dissolved 1.00 ND 0.933 0.931 93.3 93.1 1 75.0-125 0.216 20 Manganese,Dissolved 1.00 1.77 2.61 2.61 83.1 83.3 1 75.0-125 0.0489 20 Selenium,Dissolved 1.00 ND 0.972 0.983 97.2 98.3 1 75.0-125 1.11 20 Silver,Dissolved 0.200 ND 0.196 0.197 98.0 98.4 1 75.0-125 0.491 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 41 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 41 of 63 QUALITY CONTROL SUMMARYWG2034199 Volatile Organic Compounds (GC/MS) by Method 8260B L1599335-01,02,03,04,05,06,07,08,09,10,11,12 Method Blank (MB) (MB) R3909678-2 04/01/23 18:37 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acetone U 0.0113 0.0500 Acrolein U 0.00254 0.0500 Acrylonitrile U 0.000671 0.0100 Benzene U 0.0000941 0.00100 Bromobenzene U 0.000118 0.00100 Bromodichloromethane U 0.000136 0.00100 Bromoform U 0.000129 0.00100 Bromomethane U 0.000605 0.00500 n-Butylbenzene U 0.000157 0.00100 sec-Butylbenzene U 0.000125 0.00100 tert-Butylbenzene U 0.000127 0.00100 Carbon tetrachloride U 0.000128 0.00100 Chlorobenzene U 0.000116 0.00100 Chlorodibromomethane U 0.000140 0.00100 Chloroethane U 0.000192 0.00500 Chloroform U 0.000111 0.00500 Chloromethane U 0.000960 0.00250 2-Chlorotoluene U 0.000106 0.00100 4-Chlorotoluene U 0.000114 0.00100 1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1,2-Dibromoethane U 0.000126 0.00100 Dibromomethane U 0.000122 0.00100 1,2-Dichlorobenzene U 0.000107 0.00100 1,3-Dichlorobenzene U 0.000110 0.00100 1,4-Dichlorobenzene U 0.000120 0.00100 Dichlorodifluoromethane U 0.000374 0.00500 1,1-Dichloroethane U 0.000100 0.00100 1,2-Dichloroethane U 0.0000819 0.00100 1,1-Dichloroethene U 0.000188 0.00100 cis-1,2-Dichloroethene U 0.000126 0.00100 trans-1,2-Dichloroethene U 0.000149 0.00100 1,2-Dichloropropane U 0.000149 0.00100 1,1-Dichloropropene U 0.000142 0.00100 1,3-Dichloropropane U 0.000110 0.00100 cis-1,3-Dichloropropene U 0.000111 0.00100 trans-1,3-Dichloropropene U 0.000118 0.00100 2,2-Dichloropropane U 0.000161 0.00100 Di-isopropyl ether U 0.000105 0.00100 Ethylbenzene U 0.000137 0.00100 Hexachloro-1,3-butadiene U 0.000337 0.00100 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 42 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 42 of 63 QUALITY CONTROL SUMMARYWG2034199 Volatile Organic Compounds (GC/MS) by Method 8260B L1599335-01,02,03,04,05,06,07,08,09,10,11,12 Method Blank (MB) (MB) R3909678-2 04/01/23 18:37 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Isopropylbenzene U 0.000105 0.00100 p-Isopropyltoluene U 0.000120 0.00100 2-Butanone (MEK)U 0.00119 0.0100 Methylene Chloride U 0.000430 0.00500 4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100 Methyl tert-butyl ether U 0.000101 0.00100 Naphthalene U 0.00100 0.00500 n-Propylbenzene U 0.0000993 0.00100 Styrene U 0.000118 0.00100 1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 Tetrachloroethene U 0.000300 0.00100 Toluene U 0.000278 0.00100 1,2,3-Trichlorobenzene U 0.000230 0.00100 1,2,4-Trichlorobenzene U 0.000481 0.00100 1,1,1-Trichloroethane U 0.000149 0.00100 1,1,2-Trichloroethane U 0.000158 0.00100 Trichloroethene U 0.000190 0.00100 Trichlorofluoromethane U 0.000160 0.00500 1,2,3-Trichloropropane U 0.000237 0.00250 1,2,4-Trimethylbenzene U 0.000322 0.00100 1,2,3-Trimethylbenzene U 0.000104 0.00100 1,3,5-Trimethylbenzene U 0.000104 0.00100 Vinyl chloride U 0.000234 0.00100 Xylenes, Total U 0.000174 0.00300 (S) Toluene-d8 97.8 80.0-120 (S) 4-Bromofluorobenzene 115 77.0-126 (S) 1,2-Dichloroethane-d4 111 70.0-130 Laboratory Control Sample (LCS) (LCS) R3909678-1 04/01/23 18:00 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Acetone 0.0250 0.0485 194 19.0-160 J4 Acrolein 0.0250 0.0294 118 10.0-160 Acrylonitrile 0.0250 0.0330 132 55.0-149 Benzene 0.00500 0.00528 106 70.0-123 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 43 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 43 of 63 QUALITY CONTROL SUMMARYWG2034199 Volatile Organic Compounds (GC/MS) by Method 8260B L1599335-01,02,03,04,05,06,07,08,09,10,11,12 Laboratory Control Sample (LCS) (LCS) R3909678-1 04/01/23 18:00 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Bromobenzene 0.00500 0.00440 88.0 73.0-121 Bromodichloromethane 0.00500 0.00524 105 75.0-120 Bromoform 0.00500 0.00475 95.0 68.0-132 Bromomethane 0.00500 0.00567 113 10.0-160 n-Butylbenzene 0.00500 0.00390 78.0 73.0-125 sec-Butylbenzene 0.00500 0.00402 80.4 75.0-125 tert-Butylbenzene 0.00500 0.00406 81.2 76.0-124 Carbon tetrachloride 0.00500 0.00574 115 68.0-126 Chlorobenzene 0.00500 0.00505 101 80.0-121 Chlorodibromomethane 0.00500 0.00474 94.8 77.0-125 Chloroethane 0.00500 0.00447 89.4 47.0-150 Chloroform 0.00500 0.00519 104 73.0-120 Chloromethane 0.00500 0.00421 84.2 41.0-142 2-Chlorotoluene 0.00500 0.00412 82.4 76.0-123 4-Chlorotoluene 0.00500 0.00379 75.8 75.0-122 1,2-Dibromo-3-Chloropropane 0.00500 0.00353 70.6 58.0-134 1,2-Dibromoethane 0.00500 0.00484 96.8 80.0-122 Dibromomethane 0.00500 0.00566 113 80.0-120 1,2-Dichlorobenzene 0.00500 0.00456 91.2 79.0-121 1,3-Dichlorobenzene 0.00500 0.00451 90.2 79.0-120 1,4-Dichlorobenzene 0.00500 0.00425 85.0 79.0-120 Dichlorodifluoromethane 0.00500 0.00494 98.8 51.0-149 1,1-Dichloroethane 0.00500 0.00570 114 70.0-126 1,2-Dichloroethane 0.00500 0.00515 103 70.0-128 1,1-Dichloroethene 0.00500 0.00537 107 71.0-124 cis-1,2-Dichloroethene 0.00500 0.00575 115 73.0-120 trans-1,2-Dichloroethene 0.00500 0.00570 114 73.0-120 1,2-Dichloropropane 0.00500 0.00540 108 77.0-125 1,1-Dichloropropene 0.00500 0.00570 114 74.0-126 1,3-Dichloropropane 0.00500 0.00458 91.6 80.0-120 cis-1,3-Dichloropropene 0.00500 0.00516 103 80.0-123 trans-1,3-Dichloropropene 0.00500 0.00432 86.4 78.0-124 2,2-Dichloropropane 0.00500 0.00522 104 58.0-130 Di-isopropyl ether 0.00500 0.00463 92.6 58.0-138 Ethylbenzene 0.00500 0.00485 97.0 79.0-123 Hexachloro-1,3-butadiene 0.00500 0.00445 89.0 54.0-138 Isopropylbenzene 0.00500 0.00497 99.4 76.0-127 p-Isopropyltoluene 0.00500 0.00397 79.4 76.0-125 2-Butanone (MEK)0.0250 0.0282 113 44.0-160 Methylene Chloride 0.00500 0.00515 103 67.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 44 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 44 of 63 QUALITY CONTROL SUMMARYWG2034199 Volatile Organic Compounds (GC/MS) by Method 8260B L1599335-01,02,03,04,05,06,07,08,09,10,11,12 Laboratory Control Sample (LCS) (LCS) R3909678-1 04/01/23 18:00 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 4-Methyl-2-pentanone (MIBK)0.0250 0.0203 81.2 68.0-142 Methyl tert-butyl ether 0.00500 0.00544 109 68.0-125 Naphthalene 0.00500 0.00399 79.8 54.0-135 n-Propylbenzene 0.00500 0.00390 78.0 77.0-124 Styrene 0.00500 0.00490 98.0 73.0-130 1,1,1,2-Tetrachloroethane 0.00500 0.00474 94.8 75.0-125 1,1,2,2-Tetrachloroethane 0.00500 0.00369 73.8 65.0-130 1,1,2-Trichlorotrifluoroethane 0.00500 0.00528 106 69.0-132 Tetrachloroethene 0.00500 0.00549 110 72.0-132 Toluene 0.00500 0.00485 97.0 79.0-120 1,2,3-Trichlorobenzene 0.00500 0.00432 86.4 50.0-138 1,2,4-Trichlorobenzene 0.00500 0.00429 85.8 57.0-137 1,1,1-Trichloroethane 0.00500 0.00572 114 73.0-124 1,1,2-Trichloroethane 0.00500 0.00471 94.2 80.0-120 Trichloroethene 0.00500 0.00602 120 78.0-124 Trichlorofluoromethane 0.00500 0.00562 112 59.0-147 1,2,3-Trichloropropane 0.00500 0.00410 82.0 73.0-130 1,2,4-Trimethylbenzene 0.00500 0.00386 77.2 76.0-121 1,2,3-Trimethylbenzene 0.00500 0.00400 80.0 77.0-120 1,3,5-Trimethylbenzene 0.00500 0.00405 81.0 76.0-122 Vinyl chloride 0.00500 0.00474 94.8 67.0-131 Xylenes, Total 0.0150 0.0147 98.0 79.0-123 (S) Toluene-d8 98.2 80.0-120 (S) 4-Bromofluorobenzene 116 77.0-126 (S) 1,2-Dichloroethane-d4 106 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 45 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 45 of 63 QUALITY CONTROL SUMMARYWG2036467 Volatile Organic Compounds (GC/MS) by Method 8260B L1599335-11,12 Method Blank (MB) (MB) R3910014-3 04/05/23 17:25 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,1-Dichloroethene U 0.000188 0.00100 (S) Toluene-d8 101 80.0-120 (S) 4-Bromofluorobenzene 96.6 77.0-126 (S) 1,2-Dichloroethane-d4 114 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3910014-1 04/05/23 16:39 • (LCSD) R3910014-2 04/05/23 17:02 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 1,1-Dichloroethene 0.00500 0.00591 0.00514 118 103 71.0-124 13.9 20 (S) Toluene-d8 103 100 80.0-120 (S) 4-Bromofluorobenzene 101 104 77.0-126 (S) 1,2-Dichloroethane-d4 124 121 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 46 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 46 of 63 QUALITY CONTROL SUMMARYWG2033242 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1599335-01,02,03,04,10 Method Blank (MB) (MB) R3908316-3 04/01/23 21:22 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acenaphthene U 0.0000886 0.00100 Acenaphthylene U 0.0000921 0.00100 Anthracene U 0.0000804 0.00100 Benzidine U 0.00374 0.0100 Benzo(a)anthracene U 0.000199 0.00100 Benzo(b)fluoranthene U 0.000130 0.00100 Benzo(k)fluoranthene U 0.000120 0.00100 Benzo(g,h,i)perylene U 0.000121 0.00100 Benzo(a)pyrene U 0.0000381 0.00100 Bis(2-chlorethoxy)methane U 0.000116 0.0100 Bis(2-chloroethyl)ether U 0.000137 0.0100 2,2-Oxybis(1-Chloropropane)U 0.000210 0.0100 4-Bromophenyl-phenylether U 0.0000877 0.0100 2-Chloronaphthalene U 0.0000648 0.00100 4-Chlorophenyl-phenylether U 0.0000926 0.0100 Chrysene U 0.000130 0.00100 Dibenz(a,h)anthracene U 0.0000644 0.00100 1,2-Dichlorobenzene U 0.0000713 0.0100 1,3-Dichlorobenzene U 0.000132 0.0100 1,4-Dichlorobenzene U 0.0000942 0.0100 3,3-Dichlorobenzidine U 0.000212 0.0100 2,4-Dinitrotoluene U 0.0000983 0.0100 2,6-Dinitrotoluene U 0.000250 0.0100 Fluoranthene U 0.000102 0.00100 Fluorene U 0.0000844 0.00100 Hexachlorobenzene U 0.0000755 0.00100 Hexachloro-1,3-butadiene U 0.0000968 0.0100 Hexachlorocyclopentadiene U 0.0000598 0.0100 Hexachloroethane U 0.000127 0.0100 Indeno(1,2,3-cd)pyrene U 0.000279 0.00100 Isophorone U 0.000143 0.0100 Naphthalene U 0.000159 0.00100 Nitrobenzene U 0.000297 0.0100 n-Nitrosodimethylamine U 0.000998 0.0100 n-Nitrosodiphenylamine U 0.00237 0.0100 n-Nitrosodi-n-propylamine U 0.000261 0.0100 Phenanthrene U 0.000112 0.00100 Benzylbutyl phthalate U 0.000765 0.00300 Bis(2-ethylhexyl)phthalate U 0.000895 0.00300 Di-n-butyl phthalate U 0.000453 0.00300 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 47 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 47 of 63 QUALITY CONTROL SUMMARYWG2033242 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1599335-01,02,03,04,10 Method Blank (MB) (MB) R3908316-3 04/01/23 21:22 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Diethyl phthalate U 0.000287 0.00300 Dimethyl phthalate U 0.000260 0.00300 Di-n-octyl phthalate U 0.000932 0.00300 Pyrene U 0.000107 0.00100 1,2,4-Trichlorobenzene U 0.0000698 0.0100 4-Chloro-3-methylphenol U 0.000131 0.0100 2-Chlorophenol U 0.000133 0.0100 2,4-Dichlorophenol U 0.000102 0.0100 2,4-Dimethylphenol U 0.0000636 0.0100 4,6-Dinitro-2-methylphenol U 0.00112 0.0100 2,4-Dinitrophenol U 0.00593 0.0100 2-Nitrophenol U 0.000117 0.0100 4-Nitrophenol U 0.000143 0.0100 Pentachlorophenol U 0.000313 0.0100 Phenol U 0.00433 0.0100 2,4,6-Trichlorophenol U 0.000100 0.0100 (S) 2-Fluorophenol 21.9 10.0-120 (S) Phenol-d5 14.7 10.0-120 (S) Nitrobenzene-d5 62.5 10.0-127 (S) 2-Fluorobiphenyl 64.8 10.0-130 (S) 2,4,6-Tribromophenol 64.0 10.0-155 (S) p-Terphenyl-d14 69.7 10.0-128 Laboratory Control Sample (LCS) (LCS) R3908316-1 04/01/23 20:38 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Acenaphthene 0.0500 0.0377 75.4 41.0-120 Acenaphthylene 0.0500 0.0388 77.6 43.0-120 Anthracene 0.0500 0.0381 76.2 45.0-120 Benzidine 0.100 0.00392 3.92 10.0-120 J4 Benzo(a)anthracene 0.0500 0.0362 72.4 47.0-120 Benzo(b)fluoranthene 0.0500 0.0376 75.2 46.0-120 Benzo(k)fluoranthene 0.0500 0.0342 68.4 46.0-120 Benzo(g,h,i)perylene 0.0500 0.0436 87.2 48.0-121 Benzo(a)pyrene 0.0500 0.0397 79.4 47.0-120 Bis(2-chlorethoxy)methane 0.0500 0.0289 57.8 33.0-120 Bis(2-chloroethyl)ether 0.0500 0.0301 60.2 23.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 48 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 48 of 63 QUALITY CONTROL SUMMARYWG2033242 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1599335-01,02,03,04,10 Laboratory Control Sample (LCS) (LCS) R3908316-1 04/01/23 20:38 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2,2-Oxybis(1-Chloropropane)0.0500 0.0304 60.8 28.0-120 4-Bromophenyl-phenylether 0.0500 0.0416 83.2 45.0-120 2-Chloronaphthalene 0.0500 0.0349 69.8 37.0-120 4-Chlorophenyl-phenylether 0.0500 0.0416 83.2 44.0-120 Chrysene 0.0500 0.0349 69.8 48.0-120 Dibenz(a,h)anthracene 0.0500 0.0432 86.4 47.0-120 1,2-Dichlorobenzene 0.0500 0.0322 64.4 20.0-120 1,3-Dichlorobenzene 0.0500 0.0320 64.0 17.0-120 1,4-Dichlorobenzene 0.0500 0.0327 65.4 18.0-120 3,3-Dichlorobenzidine 0.100 0.0645 64.5 44.0-120 2,4-Dinitrotoluene 0.0500 0.0452 90.4 49.0-124 2,6-Dinitrotoluene 0.0500 0.0387 77.4 46.0-120 Fluoranthene 0.0500 0.0396 79.2 51.0-120 Fluorene 0.0500 0.0440 88.0 47.0-120 Hexachlorobenzene 0.0500 0.0432 86.4 44.0-120 Hexachloro-1,3-butadiene 0.0500 0.0322 64.4 19.0-120 Hexachlorocyclopentadiene 0.0500 0.0302 60.4 15.0-120 Hexachloroethane 0.0500 0.0295 59.0 15.0-120 Indeno(1,2,3-cd)pyrene 0.0500 0.0403 80.6 49.0-122 Isophorone 0.0500 0.0321 64.2 36.0-120 Naphthalene 0.0500 0.0343 68.6 27.0-120 Nitrobenzene 0.0500 0.0289 57.8 27.0-120 n-Nitrosodimethylamine 0.0500 0.0154 30.8 10.0-120 n-Nitrosodiphenylamine 0.0500 0.0364 72.8 47.0-120 n-Nitrosodi-n-propylamine 0.0500 0.0379 75.8 31.0-120 Phenanthrene 0.0500 0.0373 74.6 46.0-120 Benzylbutyl phthalate 0.0500 0.0305 61.0 43.0-121 Bis(2-ethylhexyl)phthalate 0.0500 0.0297 59.4 43.0-122 Di-n-butyl phthalate 0.0500 0.0388 77.6 49.0-121 Diethyl phthalate 0.0500 0.0419 83.8 48.0-122 Dimethyl phthalate 0.0500 0.0390 78.0 48.0-120 Di-n-octyl phthalate 0.0500 0.0299 59.8 42.0-125 Pyrene 0.0500 0.0352 70.4 47.0-120 1,2,4-Trichlorobenzene 0.0500 0.0308 61.6 24.0-120 4-Chloro-3-methylphenol 0.0500 0.0349 69.8 40.0-120 2-Chlorophenol 0.0500 0.0280 56.0 25.0-120 2,4-Dichlorophenol 0.0500 0.0342 68.4 36.0-120 2,4-Dimethylphenol 0.0500 0.0291 58.2 33.0-120 4,6-Dinitro-2-methylphenol 0.0500 0.0368 73.6 38.0-138 2,4-Dinitrophenol 0.0500 0.0327 65.4 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 49 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 49 of 63 QUALITY CONTROL SUMMARYWG2033242 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1599335-01,02,03,04,10 Laboratory Control Sample (LCS) (LCS) R3908316-1 04/01/23 20:38 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2-Nitrophenol 0.0500 0.0317 63.4 31.0-120 4-Nitrophenol 0.0500 0.0124 24.8 10.0-120 Pentachlorophenol 0.0500 0.0307 61.4 23.0-120 Phenol 0.0500 0.00982 19.6 10.0-120 2,4,6-Trichlorophenol 0.0500 0.0366 73.2 42.0-120 (S) 2-Fluorophenol 30.6 10.0-120 (S) Phenol-d5 19.0 10.0-120 (S) Nitrobenzene-d5 57.2 10.0-127 (S) 2-Fluorobiphenyl 69.6 10.0-130 (S) 2,4,6-Tribromophenol 93.5 10.0-155 (S) p-Terphenyl-d14 67.2 10.0-128 L1599596-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1599596-01 04/02/23 02:04 • (MS) R3908316-4 04/02/23 02:26 • (MSD) R3908316-5 04/02/23 02:47 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Acenaphthene 0.0500 ND 0.0268 0.0311 53.6 62.2 1 28.0-120 14.9 25 Acenaphthylene 0.0500 ND 0.0288 0.0331 57.6 66.2 1 31.0-121 13.9 25 Anthracene 0.0500 ND 0.0264 0.0317 52.8 63.4 1 36.0-120 18.2 23 Benzidine 0.100 ND ND ND 3.92 3.96 1 10.0-120 J6 J6 1.02 37 Benzo(a)anthracene 0.0500 ND 0.0255 0.0308 51.0 61.6 1 39.0-120 18.8 23 Benzo(b)fluoranthene 0.0500 ND 0.0272 0.0317 54.4 63.4 1 37.0-120 15.3 23 Benzo(k)fluoranthene 0.0500 ND 0.0242 0.0297 48.4 59.4 1 37.0-120 20.4 26 Benzo(g,h,i)perylene 0.0500 ND 0.0329 0.0392 65.8 78.4 1 37.0-123 17.5 25 Benzo(a)pyrene 0.0500 ND 0.0282 0.0342 56.4 68.4 1 37.0-120 19.2 24 Bis(2-chlorethoxy)methane 0.0500 ND 0.0233 0.0259 46.6 51.8 1 17.0-120 10.6 31 Bis(2-chloroethyl)ether 0.0500 ND 0.0232 0.0276 46.4 55.2 1 14.0-120 17.3 33 2,2-Oxybis(1-Chloropropane)0.0500 ND 0.0238 0.0277 47.6 55.4 1 18.0-120 15.1 34 4-Bromophenyl-phenylether 0.0500 ND 0.0306 0.0361 61.2 72.2 1 37.0-120 16.5 24 2-Chloronaphthalene 0.0500 ND 0.0253 0.0297 50.6 59.4 1 29.0-120 16.0 28 4-Chlorophenyl-phenylether 0.0500 ND 0.0285 0.0336 57.0 67.2 1 36.0-120 16.4 23 Chrysene 0.0500 ND 0.0252 0.0309 50.4 61.8 1 38.0-120 20.3 23 Dibenz(a,h)anthracene 0.0500 ND 0.0312 0.0375 62.4 75.0 1 36.0-121 18.3 24 1,2-Dichlorobenzene 0.0500 ND 0.0199 0.0244 39.8 48.8 1 18.0-120 20.3 40 1,3-Dichlorobenzene 0.0500 ND 0.0188 0.0235 37.6 47.0 1 15.0-120 22.2 40 1,4-Dichlorobenzene 0.0500 ND 0.0193 0.0242 38.6 48.4 1 17.0-120 22.5 40 3,3-Dichlorobenzidine 0.100 ND 0.0312 0.0409 31.2 40.9 1 10.0-134 26.9 30 2,4-Dinitrotoluene 0.0500 ND 0.0362 0.0408 72.4 81.6 1 39.0-125 11.9 25 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 50 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 50 of 63 QUALITY CONTROL SUMMARYWG2033242 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1599335-01,02,03,04,10 L1599596-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1599596-01 04/02/23 02:04 • (MS) R3908316-4 04/02/23 02:26 • (MSD) R3908316-5 04/02/23 02:47 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% 2,6-Dinitrotoluene 0.0500 ND 0.0312 0.0360 62.4 72.0 1 36.0-120 14.3 27 Fluoranthene 0.0500 ND 0.0278 0.0336 55.6 67.2 1 41.0-121 18.9 22 Fluorene 0.0500 ND 0.0299 0.0347 59.8 69.4 1 37.0-120 14.9 24 Hexachlorobenzene 0.0500 ND 0.0313 0.0374 62.6 74.8 1 35.0-122 17.8 24 Hexachloro-1,3-butadiene 0.0500 ND 0.0173 0.0220 34.6 44.0 1 12.0-120 23.9 34 Hexachlorocyclopentadiene 0.0500 ND 0.0192 0.0247 38.4 49.4 1 10.0-120 25.1 33 Hexachloroethane 0.0500 ND 0.0151 0.0200 30.2 40.0 1 10.0-120 27.9 40 Indeno(1,2,3-cd)pyrene 0.0500 ND 0.0300 0.0358 60.0 71.6 1 38.0-125 17.6 24 Isophorone 0.0500 ND 0.0270 0.0303 54.0 60.6 1 21.0-120 11.5 27 Naphthalene 0.0500 ND 0.0221 0.0256 44.2 51.2 1 10.0-120 14.7 31 Nitrobenzene 0.0500 ND 0.0258 0.0291 51.6 58.2 1 12.0-120 12.0 30 n-Nitrosodimethylamine 0.0500 ND 0.0122 0.0144 24.4 28.8 1 10.0-120 16.5 40 n-Nitrosodiphenylamine 0.0500 ND 0.0250 0.0293 50.0 58.6 1 37.0-120 15.8 24 n-Nitrosodi-n-propylamine 0.0500 ND 0.0264 0.0311 52.8 62.2 1 16.0-120 16.3 30 Phenanthrene 0.0500 ND 0.0270 0.0315 54.0 63.0 1 33.0-120 15.4 22 Benzylbutyl phthalate 0.0500 ND 0.0249 0.0291 49.8 58.2 1 34.0-126 15.6 24 Bis(2-ethylhexyl)phthalate 0.0500 ND 0.0229 0.0280 45.8 56.0 1 33.0-126 20.0 25 Di-n-butyl phthalate 0.0500 ND 0.0276 0.0332 55.2 66.4 1 35.0-128 18.4 23 Diethyl phthalate 0.0500 ND 0.0331 0.0378 66.2 75.6 1 39.0-125 13.3 24 Dimethyl phthalate 0.0500 ND 0.0310 0.0354 62.0 70.8 1 37.0-120 13.3 24 Di-n-octyl phthalate 0.0500 ND 0.0236 0.0288 47.2 57.6 1 25.0-135 19.8 26 Pyrene 0.0500 ND 0.0266 0.0314 53.2 62.8 1 39.0-120 16.6 22 1,2,4-Trichlorobenzene 0.0500 ND 0.0206 0.0244 41.2 48.8 1 15.0-120 16.9 31 4-Chloro-3-methylphenol 0.0500 ND 0.0250 0.0284 50.0 56.8 1 26.0-120 12.7 27 2-Chlorophenol 0.0500 ND 0.0198 0.0236 39.6 47.2 1 18.0-120 17.5 34 2,4-Dichlorophenol 0.0500 ND 0.0247 0.0290 49.4 58.0 1 19.0-120 16.0 27 2,4-Dimethylphenol 0.0500 ND 0.0166 0.0202 33.2 40.4 1 15.0-120 19.6 28 4,6-Dinitro-2-methylphenol 0.0500 ND 0.0265 0.0323 53.0 64.6 1 10.0-144 19.7 39 2,4-Dinitrophenol 0.0500 ND 0.0275 0.0333 55.0 66.6 1 10.0-120 19.1 40 2-Nitrophenol 0.0500 ND 0.0237 0.0287 47.4 57.4 1 20.0-120 19.1 30 4-Nitrophenol 0.0500 ND 0.0114 0.0123 22.8 24.6 1 10.0-120 7.59 40 Pentachlorophenol 0.0500 ND 0.0269 0.0309 53.8 61.8 1 10.0-128 13.8 37 Phenol 0.0500 ND ND ND 17.1 18.7 1 10.0-120 9.16 40 2,4,6-Trichlorophenol 0.0500 ND 0.0248 0.0301 49.3 59.9 1 26.0-120 19.3 31 (S) 2-Fluorophenol 24.3 28.2 10.0-120 (S) Phenol-d5 16.3 17.9 10.0-120 (S) Nitrobenzene-d5 48.7 54.7 10.0-127 (S) 2-Fluorobiphenyl 51.8 60.7 10.0-130 (S) 2,4,6-Tribromophenol 66.0 76.0 10.0-155 (S) p-Terphenyl-d14 46.4 56.9 10.0-128 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 51 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 51 of 63 QUALITY CONTROL SUMMARYWG2033244 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1599335-11,12 Method Blank (MB) (MB) R3909127-2 04/02/23 10:31 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acenaphthene U 0.0000886 0.00100 Acenaphthylene U 0.0000921 0.00100 Anthracene U 0.0000804 0.00100 Benzidine U 0.00374 0.0100 Benzo(a)anthracene U 0.000199 0.00100 Benzo(b)fluoranthene U 0.000130 0.00100 Benzo(k)fluoranthene U 0.000120 0.00100 Benzo(g,h,i)perylene U 0.000121 0.00100 Benzo(a)pyrene U 0.0000381 0.00100 Bis(2-chlorethoxy)methane U 0.000116 0.0100 Bis(2-chloroethyl)ether U 0.000137 0.0100 2,2-Oxybis(1-Chloropropane)U 0.000210 0.0100 4-Bromophenyl-phenylether U 0.0000877 0.0100 2-Chloronaphthalene U 0.0000648 0.00100 4-Chlorophenyl-phenylether U 0.0000926 0.0100 Chrysene U 0.000130 0.00100 Dibenz(a,h)anthracene U 0.0000644 0.00100 1,2-Dichlorobenzene U 0.0000713 0.0100 1,3-Dichlorobenzene U 0.000132 0.0100 1,4-Dichlorobenzene U 0.0000942 0.0100 3,3-Dichlorobenzidine U 0.000212 0.0100 2,4-Dinitrotoluene U 0.0000983 0.0100 2,6-Dinitrotoluene U 0.000250 0.0100 Fluoranthene U 0.000102 0.00100 Fluorene U 0.0000844 0.00100 Hexachlorobenzene U 0.0000755 0.00100 Hexachloro-1,3-butadiene U 0.0000968 0.0100 Hexachlorocyclopentadiene U 0.0000598 0.0100 Hexachloroethane U 0.000127 0.0100 Indeno(1,2,3-cd)pyrene U 0.000279 0.00100 Isophorone U 0.000143 0.0100 Naphthalene U 0.000159 0.00100 Nitrobenzene U 0.000297 0.0100 n-Nitrosodimethylamine U 0.000998 0.0100 n-Nitrosodiphenylamine U 0.00237 0.0100 n-Nitrosodi-n-propylamine U 0.000261 0.0100 Phenanthrene U 0.000112 0.00100 Benzylbutyl phthalate U 0.000765 0.00300 Bis(2-ethylhexyl)phthalate U 0.000895 0.00300 Di-n-butyl phthalate U 0.000453 0.00300 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 52 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 52 of 63 QUALITY CONTROL SUMMARYWG2033244 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1599335-11,12 Method Blank (MB) (MB) R3909127-2 04/02/23 10:31 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Diethyl phthalate U 0.000287 0.00300 Dimethyl phthalate U 0.000260 0.00300 Di-n-octyl phthalate U 0.000932 0.00300 Pyrene U 0.000107 0.00100 1,2,4-Trichlorobenzene U 0.0000698 0.0100 4-Chloro-3-methylphenol U 0.000131 0.0100 2-Chlorophenol U 0.000133 0.0100 2,4-Dichlorophenol U 0.000102 0.0100 2,4-Dimethylphenol U 0.0000636 0.0100 4,6-Dinitro-2-methylphenol U 0.00112 0.0100 2,4-Dinitrophenol U 0.00593 0.0100 2-Nitrophenol U 0.000117 0.0100 4-Nitrophenol U 0.000143 0.0100 Pentachlorophenol U 0.000313 0.0100 Phenol U 0.00433 0.0100 2,4,6-Trichlorophenol U 0.000100 0.0100 (S) 2-Fluorophenol 28.3 10.0-120 (S) Phenol-d5 16.3 10.0-120 (S) Nitrobenzene-d5 53.7 10.0-127 (S) 2-Fluorobiphenyl 64.7 10.0-130 (S) 2,4,6-Tribromophenol 44.0 10.0-155 (S) p-Terphenyl-d14 68.8 10.0-128 Laboratory Control Sample (LCS) (LCS) R3909127-1 04/02/23 10:10 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Acenaphthene 0.0500 0.0374 74.8 41.0-120 Acenaphthylene 0.0500 0.0385 77.0 43.0-120 Anthracene 0.0500 0.0395 79.0 45.0-120 Benzidine 0.100 0.00530 5.30 10.0-120 J4 Benzo(a)anthracene 0.0500 0.0418 83.6 47.0-120 Benzo(b)fluoranthene 0.0500 0.0417 83.4 46.0-120 Benzo(k)fluoranthene 0.0500 0.0411 82.2 46.0-120 Benzo(g,h,i)perylene 0.0500 0.0437 87.4 48.0-121 Benzo(a)pyrene 0.0500 0.0444 88.8 47.0-120 Bis(2-chlorethoxy)methane 0.0500 0.0321 64.2 33.0-120 Bis(2-chloroethyl)ether 0.0500 0.0344 68.8 23.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 53 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 53 of 63 QUALITY CONTROL SUMMARYWG2033244 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1599335-11,12 Laboratory Control Sample (LCS) (LCS) R3909127-1 04/02/23 10:10 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2,2-Oxybis(1-Chloropropane)0.0500 0.0331 66.2 28.0-120 4-Bromophenyl-phenylether 0.0500 0.0422 84.4 45.0-120 2-Chloronaphthalene 0.0500 0.0361 72.2 37.0-120 4-Chlorophenyl-phenylether 0.0500 0.0413 82.6 44.0-120 Chrysene 0.0500 0.0416 83.2 48.0-120 Dibenz(a,h)anthracene 0.0500 0.0444 88.8 47.0-120 1,2-Dichlorobenzene 0.0500 0.0322 64.4 20.0-120 1,3-Dichlorobenzene 0.0500 0.0320 64.0 17.0-120 1,4-Dichlorobenzene 0.0500 0.0322 64.4 18.0-120 3,3-Dichlorobenzidine 0.100 0.0633 63.3 44.0-120 2,4-Dinitrotoluene 0.0500 0.0435 87.0 49.0-124 2,6-Dinitrotoluene 0.0500 0.0413 82.6 46.0-120 Fluoranthene 0.0500 0.0447 89.4 51.0-120 Fluorene 0.0500 0.0390 78.0 47.0-120 Hexachlorobenzene 0.0500 0.0422 84.4 44.0-120 Hexachloro-1,3-butadiene 0.0500 0.0339 67.8 19.0-120 Hexachlorocyclopentadiene 0.0500 0.0346 69.2 15.0-120 Hexachloroethane 0.0500 0.0301 60.2 15.0-120 Indeno(1,2,3-cd)pyrene 0.0500 0.0407 81.4 49.0-122 Isophorone 0.0500 0.0318 63.6 36.0-120 Naphthalene 0.0500 0.0307 61.4 27.0-120 Nitrobenzene 0.0500 0.0308 61.6 27.0-120 n-Nitrosodimethylamine 0.0500 0.0191 38.2 10.0-120 n-Nitrosodiphenylamine 0.0500 0.0377 75.4 47.0-120 n-Nitrosodi-n-propylamine 0.0500 0.0333 66.6 31.0-120 Phenanthrene 0.0500 0.0392 78.4 46.0-120 Benzylbutyl phthalate 0.0500 0.0393 78.6 43.0-121 Bis(2-ethylhexyl)phthalate 0.0500 0.0395 79.0 43.0-122 Di-n-butyl phthalate 0.0500 0.0419 83.8 49.0-121 Diethyl phthalate 0.0500 0.0411 82.2 48.0-122 Dimethyl phthalate 0.0500 0.0399 79.8 48.0-120 Di-n-octyl phthalate 0.0500 0.0396 79.2 42.0-125 Pyrene 0.0500 0.0406 81.2 47.0-120 1,2,4-Trichlorobenzene 0.0500 0.0325 65.0 24.0-120 4-Chloro-3-methylphenol 0.0500 0.0306 61.2 40.0-120 2-Chlorophenol 0.0500 0.0279 55.8 25.0-120 2,4-Dichlorophenol 0.0500 0.0320 64.0 36.0-120 2,4-Dimethylphenol 0.0500 0.0266 53.2 33.0-120 4,6-Dinitro-2-methylphenol 0.0500 0.0495 99.0 38.0-138 2,4-Dinitrophenol 0.0500 0.0395 79.0 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 54 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 54 of 63 QUALITY CONTROL SUMMARYWG2033244 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1599335-11,12 Laboratory Control Sample (LCS) (LCS) R3909127-1 04/02/23 10:10 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2-Nitrophenol 0.0500 0.0353 70.6 31.0-120 4-Nitrophenol 0.0500 0.0135 27.0 10.0-120 Pentachlorophenol 0.0500 0.0275 55.0 23.0-120 Phenol 0.0500 0.0114 22.8 10.0-120 2,4,6-Trichlorophenol 0.0500 0.0392 78.4 42.0-120 (S) 2-Fluorophenol 34.1 10.0-120 (S) Phenol-d5 21.1 10.0-120 (S) Nitrobenzene-d5 53.5 10.0-127 (S) 2-Fluorobiphenyl 74.7 10.0-130 (S) 2,4,6-Tribromophenol 83.0 10.0-155 (S) p-Terphenyl-d14 87.4 10.0-128 L1599844-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1599844-01 04/02/23 16:38 • (MS) R3909127-3 04/02/23 17:00 • (MSD) R3909127-4 04/02/23 17:21 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Acenaphthene 0.0500 ND 0.0313 0.0313 62.6 62.6 1 28.0-120 0.000 25 Acenaphthylene 0.0500 ND 0.0308 0.0309 61.6 61.8 1 31.0-121 0.324 25 Anthracene 0.0500 ND 0.0288 0.0284 57.6 56.8 1 36.0-120 1.40 23 Benzidine 0.100 ND ND ND 0.000 0.000 1 10.0-120 J6 J6 0.000 37 Benzo(a)anthracene 0.0500 ND 0.0371 0.0354 74.2 70.8 1 39.0-120 4.69 23 Benzo(b)fluoranthene 0.0500 ND 0.0381 0.0366 76.2 73.2 1 37.0-120 4.02 23 Benzo(k)fluoranthene 0.0500 ND 0.0362 0.0347 72.4 69.4 1 37.0-120 4.23 26 Benzo(g,h,i)perylene 0.0500 ND 0.0382 0.0367 76.4 73.4 1 37.0-123 4.01 25 Benzo(a)pyrene 0.0500 ND 0.0328 0.0315 65.6 63.0 1 37.0-120 4.04 24 Bis(2-chlorethoxy)methane 0.0500 ND 0.0265 0.0263 53.0 52.6 1 17.0-120 0.758 31 Bis(2-chloroethyl)ether 0.0500 ND 0.0282 0.0268 56.4 53.6 1 14.0-120 5.09 33 2,2-Oxybis(1-Chloropropane)0.0500 ND 0.0267 0.0262 53.4 52.4 1 18.0-120 1.89 34 4-Bromophenyl-phenylether 0.0500 ND 0.0372 0.0359 74.4 71.8 1 37.0-120 3.56 24 2-Chloronaphthalene 0.0500 ND 0.0296 0.0297 59.2 59.4 1 29.0-120 0.337 28 4-Chlorophenyl-phenylether 0.0500 ND 0.0357 0.0349 71.4 69.8 1 36.0-120 2.27 23 Chrysene 0.0500 ND 0.0376 0.0360 75.2 72.0 1 38.0-120 4.35 23 Dibenz(a,h)anthracene 0.0500 ND 0.0385 0.0373 77.0 74.6 1 36.0-121 3.17 24 1,2-Dichlorobenzene 0.0500 ND 0.0243 0.0246 48.6 49.2 1 18.0-120 1.23 40 1,3-Dichlorobenzene 0.0500 ND 0.0235 0.0240 47.0 48.0 1 15.0-120 2.11 40 1,4-Dichlorobenzene 0.0500 ND 0.0239 0.0243 47.8 48.6 1 17.0-120 1.66 40 3,3-Dichlorobenzidine 0.100 ND ND ND 0.000 0.000 1 10.0-134 J6 J6 0.000 30 2,4-Dinitrotoluene 0.0500 ND 0.0382 0.0392 76.4 78.4 1 39.0-125 2.58 25 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 55 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 55 of 63 QUALITY CONTROL SUMMARYWG2033244 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1599335-11,12 L1599844-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1599844-01 04/02/23 16:38 • (MS) R3909127-3 04/02/23 17:00 • (MSD) R3909127-4 04/02/23 17:21 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% 2,6-Dinitrotoluene 0.0500 ND 0.0359 0.0361 71.8 72.2 1 36.0-120 0.556 27 Fluoranthene 0.0500 ND 0.0374 0.0367 74.8 73.4 1 41.0-121 1.89 22 Fluorene 0.0500 ND 0.0339 0.0332 67.8 66.4 1 37.0-120 2.09 24 Hexachlorobenzene 0.0500 ND 0.0365 0.0358 73.0 71.6 1 35.0-122 1.94 24 Hexachloro-1,3-butadiene 0.0500 ND 0.0258 0.0261 51.6 52.2 1 12.0-120 1.16 34 Hexachlorocyclopentadiene 0.0500 ND 0.0283 0.0278 56.6 55.6 1 10.0-120 1.78 33 Hexachloroethane 0.0500 ND 0.0226 0.0229 45.2 45.8 1 10.0-120 1.32 40 Indeno(1,2,3-cd)pyrene 0.0500 ND 0.0368 0.0354 73.6 70.8 1 38.0-125 3.88 24 Isophorone 0.0500 ND 0.0263 0.0264 52.6 52.8 1 21.0-120 0.380 27 Naphthalene 0.0500 ND 0.0251 0.0251 50.2 50.2 1 10.0-120 0.000 31 Nitrobenzene 0.0500 ND 0.0384 0.0383 76.8 76.6 1 12.0-120 0.261 30 n-Nitrosodimethylamine 0.0500 ND 0.0135 0.0121 27.0 24.2 1 10.0-120 10.9 40 n-Nitrosodiphenylamine 0.0500 ND 0.0307 0.0300 61.4 60.0 1 37.0-120 2.31 24 n-Nitrosodi-n-propylamine 0.0500 ND 0.0275 0.0271 55.0 54.2 1 16.0-120 1.47 30 Phenanthrene 0.0500 ND 0.0341 0.0333 68.2 66.6 1 33.0-120 2.37 22 Benzylbutyl phthalate 0.0500 ND 0.0380 0.0365 76.0 73.0 1 34.0-126 4.03 24 Bis(2-ethylhexyl)phthalate 0.0500 ND 0.0374 0.0365 72.7 70.9 1 33.0-126 2.44 25 Di-n-butyl phthalate 0.0500 ND 0.0377 0.0372 75.4 74.4 1 35.0-128 1.34 23 Diethyl phthalate 0.0500 ND 0.0356 0.0353 71.2 70.6 1 39.0-125 0.846 24 Dimethyl phthalate 0.0500 ND 0.0337 0.0339 67.4 67.8 1 37.0-120 0.592 24 Di-n-octyl phthalate 0.0500 ND 0.0377 0.0360 75.4 72.0 1 25.0-135 4.61 26 Pyrene 0.0500 ND 0.0376 0.0361 75.2 72.2 1 39.0-120 4.07 22 1,2,4-Trichlorobenzene 0.0500 ND 0.0257 0.0262 51.4 52.4 1 15.0-120 1.93 31 4-Chloro-3-methylphenol 0.0500 ND 0.0274 0.0258 54.8 51.6 1 26.0-120 6.02 27 2-Chlorophenol 0.0500 ND 0.0232 0.0214 46.4 42.8 1 18.0-120 8.07 34 2,4-Dichlorophenol 0.0500 ND 0.0279 0.0260 55.8 52.0 1 19.0-120 7.05 27 2,4-Dimethylphenol 0.0500 ND ND ND 10.4 9.04 1 15.0-120 J6 J6 14.4 28 4,6-Dinitro-2-methylphenol 0.0500 ND 0.0442 0.0446 88.4 89.2 1 10.0-144 0.901 39 2,4-Dinitrophenol 0.0500 ND 0.0514 0.0499 103 99.8 1 10.0-120 2.96 40 2-Nitrophenol 0.0500 ND 0.0311 0.0295 62.2 59.0 1 20.0-120 5.28 30 4-Nitrophenol 0.0500 ND 0.0153 0.0158 30.6 31.6 1 10.0-120 3.22 40 Pentachlorophenol 0.0500 ND 0.0377 0.0356 75.4 71.2 1 10.0-128 5.73 37 Phenol 0.0500 ND ND ND 19.5 18.1 1 10.0-120 7.46 40 2,4,6-Trichlorophenol 0.0500 ND 0.0338 0.0326 67.6 65.2 1 26.0-120 3.61 31 (S) 2-Fluorophenol 27.7 25.6 10.0-120 (S) Phenol-d5 17.3 16.1 10.0-120 (S) Nitrobenzene-d5 48.4 47.0 10.0-127 (S) 2-Fluorobiphenyl 63.6 61.5 10.0-130 (S) 2,4,6-Tribromophenol 75.0 71.0 10.0-155 (S) p-Terphenyl-d14 77.7 74.2 10.0-128 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 56 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 56 of 63 QUALITY CONTROL SUMMARYWG2032291 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1599335-01,02,03,04,05,06,07,08,09,10,11,12 Method Blank (MB) (MB) R3907886-3 03/31/23 12:34 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,4-Dioxane U 0.0000447 0.000400 (S) Nitrobenzene-d5 57.9 10.0-120 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3907886-1 03/31/23 11:55 • (LCSD) R3907886-2 03/31/23 12:15 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 1,4-Dioxane 0.0500 0.0473 0.0472 94.6 94.4 73.0-146 0.212 20 (S) Nitrobenzene-d5 57.7 52.3 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 57 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 57 of 63 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (S) Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be detected in all environmental media. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J4 The associated batch QC was outside the established quality control range for accuracy. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 58 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 58 of 63 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:17 59 of 63 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1599335 04/07/23 10:39 59 of 63 Benzo(k)Fluoranthene 0.00100 0.00100 0.00%A Chrysene 0.00100 0.00100 0.00%A Dibenz(a,h)Anthracene 0.00100 0.00100 0.00%A Fluoranthene 0.00100 0.00100 0.00%A Fluorene 0.00100 0.00100 0.00%A Naphthalene 0.00500 0.00500 0.00%A Phenanthrene 0.00100 0.00100 0.00%A Pyrene 0.00100 0.00100 0.00%A 1-Methylnaphthalene NA NA ---- 2-Methylnaphthalene NA NA ---- Dissolved Metals - USEPA Methods 6010B/7470A -------- Arsenic 0.0707 0.0776 9.31%A Barium 0.18 0.183 1.65%A Cadmium 0.00200 0.00200 0.00%A Chromium 0.0100 0.0100 0.00%A Iron 0.100 0.100 0.00%A Lead 0.00600 0.00600 0.00%A Manganese 0.159 0.155 2.55%A Selenium 0.0100 0.0100 0.00%A Silver 0.00500 0.00500 0.00%A Mercury 0.000200 0.000200 0.00%A All values in mg/L Non-detect values are set equal to the MDLs RPD = ((SR-DR)*200)/(SR+DR) A - Acceptable data <50% RPD estimated results are acceptable N - Not Acceptable data >50% RPD estimated results are acceptable ANALYTICAL REPORT April 07, 2023 Tetra Tech Inc. - UT Sample Delivery Group:L1600021 Samples Received:03/30/2023 Project Number:221020 Description: Site:CHROMALOX Report To:Sarah Showalter 4750 West 2100 South Suite 400 Salt Lake City, UT 84120 Entire Report Reviewed By: April 07, 2023 [Preliminary Report] Chris Ward Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 1 of 82 April 07, 2023 Chris Ward Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 1 of 82 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 6 Sr: Sample Results 7 MW-7 L1600021-01 7 GMW-3 L1600021-02 10 MW-16 L1600021-03 12 DUP MW-16 L1600021-04 15 GP-13 L1600021-05 18 MW-10B L1600021-06 20 MW-20 L1600021-07 23 GMW-1 L1600021-08 26 MW-13D L1600021-09 28 MW-13S L1600021-10 31 MW-22 L1600021-11 34 MW-19 L1600021-12 36 MW-11 L1600021-13 38 MW-21 L1600021-14 41 GMW-2 L1600021-15 43 Qc: Quality Control Summary 45 Mercury by Method 7470A 45 Metals (ICP) by Method 6010B 47 Volatile Organic Compounds (GC/MS) by Method 8260B 49 Semi Volatile Organic Compounds (GC/MS) by Method 8270C 61 Semi Volatile Organic Compounds (GC/MS) by Method 8270E 74 Gl: Glossary of Terms 76 Al: Accreditations & Locations 77 Sc: Sample Chain of Custody 78 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 2 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 2 of 82 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-7 L1600021-01 GW Michael Ozier 03/29/23 09:10 03/30/23 09:15 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2033924 1 04/05/23 10:38 04/06/23 11:35 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2033308 1 03/31/23 13:37 04/04/23 13:29 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2035040 1 04/04/23 05:25 04/04/23 05:25 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2034565 1 04/05/23 05:48 04/05/23 19:04 AED Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2032453 1 03/31/23 05:48 04/01/23 04:55 AED Mt. Juliet, TN Collected by Collected date/time Received date/time GMW-3 L1600021-02 GW Michael Ozier 03/29/23 10:00 03/30/23 09:15 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2033924 1 04/05/23 10:38 04/06/23 11:42 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2033308 1 03/31/23 13:37 04/04/23 13:32 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2035040 1 04/04/23 05:47 04/04/23 05:47 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2032453 1 03/31/23 05:48 04/01/23 05:14 AED Mt. Juliet, TN Collected by Collected date/time Received date/time MW-16 L1600021-03 GW Michael Ozier 03/29/23 11:05 03/30/23 09:15 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2033924 1 04/05/23 10:38 04/06/23 11:44 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2033308 1 03/31/23 13:37 04/04/23 13:35 ZSA Mt. Juliet, TN Metals (ICP) by Method 6010B WG2033308 1 03/31/23 13:37 04/04/23 19:18 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2035040 1 04/04/23 06:08 04/04/23 06:08 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2036549 10 04/06/23 00:00 04/06/23 00:00 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2034565 1 04/05/23 05:48 04/05/23 19:26 AED Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2032453 1 03/31/23 05:48 04/01/23 05:33 AED Mt. Juliet, TN Collected by Collected date/time Received date/time DUP MW-16 L1600021-04 GW Michael Ozier 03/29/23 11:05 03/30/23 09:15 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2033924 1 04/05/23 10:38 04/06/23 11:46 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2033308 1 03/31/23 13:37 04/04/23 13:43 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2035040 1 04/04/23 06:30 04/04/23 06:30 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2036549 10 04/06/23 00:21 04/06/23 00:21 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2034565 1 04/05/23 05:48 04/05/23 19:47 AED Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2032453 1 03/31/23 05:48 04/01/23 03:18 AED Mt. Juliet, TN Collected by Collected date/time Received date/time GP-13 L1600021-05 GW Michael Ozier 03/29/23 12:35 03/30/23 09:15 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2033924 1 04/05/23 10:38 04/06/23 11:49 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2033308 1 03/31/23 13:37 04/04/23 13:46 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2035040 1 04/04/23 06:52 04/04/23 06:52 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2036549 1 04/05/23 23:18 04/05/23 23:18 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2032453 1 03/31/23 05:48 04/01/23 05:52 AED Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 3 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 3 of 82 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-10B L1600021-06 GW Michael Ozier 03/29/23 13:45 03/30/23 09:15 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2033924 1 04/05/23 10:38 04/06/23 11:51 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2033308 1 03/31/23 13:37 04/04/23 13:48 ZSA Mt. Juliet, TN Metals (ICP) by Method 6010B WG2033308 1 03/31/23 13:37 04/05/23 11:20 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2035040 1 04/04/23 07:13 04/04/23 07:13 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2034565 1 04/05/23 05:48 04/05/23 20:09 AED Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2032453 1 03/31/23 05:48 04/01/23 03:37 AED Mt. Juliet, TN Collected by Collected date/time Received date/time MW-20 L1600021-07 GW Michael Ozier 03/29/23 14:45 03/31/23 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2035622 1 04/05/23 10:31 04/05/23 20:25 AKB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2035944 1 04/05/23 12:10 04/06/23 13:06 SPL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2035565 1 04/04/23 18:40 04/04/23 18:40 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2035185 1 04/04/23 16:30 04/05/23 04:56 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2034588 1 04/05/23 08:15 04/05/23 19:33 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time GMW-1 L1600021-08 GW Michael Ozier 03/29/23 15:55 03/31/23 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2035622 1 04/05/23 10:31 04/05/23 20:39 AKB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2035944 1 04/05/23 12:10 04/06/23 13:17 SPL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2035565 1 04/04/23 19:02 04/04/23 19:02 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2034588 1 04/05/23 08:15 04/05/23 19:52 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-13D L1600021-09 GW Michael Ozier 03/29/23 08:40 03/31/23 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2035622 1 04/05/23 10:31 04/05/23 20:41 AKB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2035944 1 04/05/23 12:10 04/06/23 13:20 SPL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2035565 1 04/04/23 19:24 04/04/23 19:24 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2035185 1 04/04/23 16:30 04/05/23 06:00 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2034588 1 04/05/23 08:15 04/05/23 20:11 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-13S L1600021-10 GW Michael Ozier 03/29/23 09:40 03/31/23 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2035622 1 04/05/23 10:31 04/05/23 20:43 AKB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2035944 1 04/05/23 12:10 04/06/23 13:23 SPL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2035565 1 04/04/23 19:46 04/04/23 19:46 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2036381 200 04/06/23 02:59 04/06/23 02:59 ADM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2035893 1 04/05/23 05:46 04/05/23 22:39 AED Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2034588 1 04/05/23 08:15 04/05/23 20:30 DSH Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 4 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 4 of 82 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-22 L1600021-11 GW Michael Ozier 03/29/23 11:15 03/31/23 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2035622 1 04/05/23 10:31 04/05/23 20:45 AKB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2035944 1 04/05/23 12:10 04/06/23 13:26 SPL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2035565 1 04/04/23 20:09 04/04/23 20:09 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2036381 1 04/05/23 21:59 04/05/23 21:59 ADM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2034588 1 04/05/23 08:15 04/05/23 20:50 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-19 L1600021-12 GW Michael Ozier 03/29/23 12:20 03/31/23 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2035622 1 04/05/23 10:31 04/05/23 20:54 AKB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2035944 1 04/05/23 12:10 04/06/23 13:34 SPL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2035565 1 04/04/23 20:31 04/04/23 20:31 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2036381 1 04/05/23 22:19 04/05/23 22:19 ADM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2034588 1 04/05/23 08:15 04/05/23 21:09 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-11 L1600021-13 GW Michael Ozier 03/29/23 13:35 03/31/23 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2035622 1 04/05/23 10:31 04/05/23 20:56 AKB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2035944 1 04/05/23 12:10 04/06/23 13:37 SPL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2035565 1 04/04/23 20:53 04/04/23 20:53 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2036381 50 04/06/23 03:19 04/06/23 03:19 ADM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2035893 1 04/05/23 05:46 04/05/23 23:01 AED Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2034588 1 04/05/23 08:15 04/05/23 21:28 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-21 L1600021-14 GW Michael Ozier 03/29/23 14:55 03/31/23 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2035622 1 04/05/23 10:31 04/05/23 20:59 AKB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2035944 1 04/05/23 12:10 04/06/23 13:40 SPL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2035565 1 04/04/23 21:15 04/04/23 21:15 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2036381 1 04/05/23 22:39 04/05/23 22:39 ADM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2034588 1 04/05/23 08:15 04/06/23 00:22 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time GMW-2 L1600021-15 GW Michael Ozier 03/29/23 16:10 03/31/23 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2035622 1 04/05/23 10:31 04/05/23 21:01 AKB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2035944 1 04/05/23 12:10 04/06/23 13:43 SPL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2035565 1 04/04/23 21:37 04/04/23 21:37 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2036381 1 04/05/23 22:59 04/05/23 22:59 ADM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2034588 1 04/05/23 08:15 04/05/23 21:47 DSH Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 5 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 5 of 82 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Chris Ward Project Manager 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 6 of 82 Chris Ward Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 6 of 82 SAMPLE RESULTS - 01 L1600021 MW-7 Collected date/time: 03/29/23 09:10 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/06/2023 11:35 WG2033924 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.297 0.0100 1 04/04/2023 13:29 WG2033308 Barium,Dissolved 0.0617 0.00500 1 04/04/2023 13:29 WG2033308 Cadmium,Dissolved ND 0.00200 1 04/04/2023 13:29 WG2033308 Chromium,Dissolved ND 0.0100 1 04/04/2023 13:29 WG2033308 Iron,Dissolved 0.162 0.100 1 04/04/2023 13:29 WG2033308 Lead,Dissolved ND 0.00600 1 04/04/2023 13:29 WG2033308 Manganese,Dissolved ND 0.0100 1 04/04/2023 13:29 WG2033308 Selenium,Dissolved ND 0.0100 1 04/04/2023 13:29 WG2033308 Silver,Dissolved ND 0.00500 1 04/04/2023 13:29 WG2033308 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 04/04/2023 05:25 WG2035040 Acrolein ND 0.0500 1 04/04/2023 05:25 WG2035040 Acrylonitrile ND 0.0100 1 04/04/2023 05:25 WG2035040 Benzene ND 0.00100 1 04/04/2023 05:25 WG2035040 Bromobenzene ND 0.00100 1 04/04/2023 05:25 WG2035040 Bromodichloromethane ND 0.00100 1 04/04/2023 05:25 WG2035040 Bromoform ND 0.00100 1 04/04/2023 05:25 WG2035040 Bromomethane ND 0.00500 1 04/04/2023 05:25 WG2035040 n-Butylbenzene ND 0.00100 1 04/04/2023 05:25 WG2035040 sec-Butylbenzene ND 0.00100 1 04/04/2023 05:25 WG2035040 tert-Butylbenzene ND 0.00100 1 04/04/2023 05:25 WG2035040 Carbon tetrachloride ND 0.00100 1 04/04/2023 05:25 WG2035040 Chlorobenzene ND 0.00100 1 04/04/2023 05:25 WG2035040 Chlorodibromomethane ND 0.00100 1 04/04/2023 05:25 WG2035040 Chloroethane ND 0.00500 1 04/04/2023 05:25 WG2035040 Chloroform ND 0.00500 1 04/04/2023 05:25 WG2035040 Chloromethane ND 0.00250 1 04/04/2023 05:25 WG2035040 2-Chlorotoluene ND 0.00100 1 04/04/2023 05:25 WG2035040 4-Chlorotoluene ND 0.00100 1 04/04/2023 05:25 WG2035040 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/04/2023 05:25 WG2035040 1,2-Dibromoethane ND 0.00100 1 04/04/2023 05:25 WG2035040 Dibromomethane ND 0.00100 1 04/04/2023 05:25 WG2035040 1,2-Dichlorobenzene ND 0.00100 1 04/04/2023 05:25 WG2035040 1,3-Dichlorobenzene ND 0.00100 1 04/04/2023 05:25 WG2035040 1,4-Dichlorobenzene ND 0.00100 1 04/04/2023 05:25 WG2035040 Dichlorodifluoromethane ND 0.00500 1 04/04/2023 05:25 WG2035040 1,1-Dichloroethane ND 0.00100 1 04/04/2023 05:25 WG2035040 1,2-Dichloroethane ND 0.00100 1 04/04/2023 05:25 WG2035040 1,1-Dichloroethene ND 0.00100 1 04/04/2023 05:25 WG2035040 cis-1,2-Dichloroethene ND 0.00100 1 04/04/2023 05:25 WG2035040 trans-1,2-Dichloroethene ND 0.00100 1 04/04/2023 05:25 WG2035040 1,2-Dichloropropane ND 0.00100 1 04/04/2023 05:25 WG2035040 1,1-Dichloropropene ND 0.00100 1 04/04/2023 05:25 WG2035040 1,3-Dichloropropane ND 0.00100 1 04/04/2023 05:25 WG2035040 cis-1,3-Dichloropropene ND J4 0.00100 1 04/04/2023 05:25 WG2035040 trans-1,3-Dichloropropene ND J4 0.00100 1 04/04/2023 05:25 WG2035040 2,2-Dichloropropane ND 0.00100 1 04/04/2023 05:25 WG2035040 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 7 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 7 of 82 SAMPLE RESULTS - 01 L1600021 MW-7 Collected date/time: 03/29/23 09:10 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/04/2023 05:25 WG2035040 Ethylbenzene ND 0.00100 1 04/04/2023 05:25 WG2035040 Hexachloro-1,3-butadiene ND 0.00100 1 04/04/2023 05:25 WG2035040 Isopropylbenzene ND 0.00100 1 04/04/2023 05:25 WG2035040 p-Isopropyltoluene ND 0.00100 1 04/04/2023 05:25 WG2035040 2-Butanone (MEK)ND 0.0100 1 04/04/2023 05:25 WG2035040 Methylene Chloride ND 0.00500 1 04/04/2023 05:25 WG2035040 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/04/2023 05:25 WG2035040 Methyl tert-butyl ether ND 0.00100 1 04/04/2023 05:25 WG2035040 Naphthalene ND 0.00500 1 04/04/2023 05:25 WG2035040 n-Propylbenzene ND 0.00100 1 04/04/2023 05:25 WG2035040 Styrene ND 0.00100 1 04/04/2023 05:25 WG2035040 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/04/2023 05:25 WG2035040 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/04/2023 05:25 WG2035040 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/04/2023 05:25 WG2035040 Tetrachloroethene ND 0.00100 1 04/04/2023 05:25 WG2035040 Toluene ND 0.00100 1 04/04/2023 05:25 WG2035040 1,2,3-Trichlorobenzene ND 0.00100 1 04/04/2023 05:25 WG2035040 1,2,4-Trichlorobenzene ND 0.00100 1 04/04/2023 05:25 WG2035040 1,1,1-Trichloroethane ND 0.00100 1 04/04/2023 05:25 WG2035040 1,1,2-Trichloroethane ND 0.00100 1 04/04/2023 05:25 WG2035040 Trichloroethene ND 0.00100 1 04/04/2023 05:25 WG2035040 Trichlorofluoromethane ND J3 0.00500 1 04/04/2023 05:25 WG2035040 1,2,3-Trichloropropane ND 0.00250 1 04/04/2023 05:25 WG2035040 1,2,4-Trimethylbenzene ND 0.00100 1 04/04/2023 05:25 WG2035040 1,2,3-Trimethylbenzene ND 0.00100 1 04/04/2023 05:25 WG2035040 1,3,5-Trimethylbenzene ND 0.00100 1 04/04/2023 05:25 WG2035040 Vinyl chloride ND 0.00100 1 04/04/2023 05:25 WG2035040 Xylenes, Total ND 0.00300 1 04/04/2023 05:25 WG2035040 (S) Toluene-d8 92.1 80.0-120 04/04/2023 05:25 WG2035040 (S) 4-Bromofluorobenzene 88.3 77.0-126 04/04/2023 05:25 WG2035040 (S) 1,2-Dichloroethane-d4 92.0 70.0-130 04/04/2023 05:25 WG2035040 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 04/05/2023 19:04 WG2034565 Acenaphthylene ND 0.00100 1 04/05/2023 19:04 WG2034565 Anthracene ND 0.00100 1 04/05/2023 19:04 WG2034565 Benzidine ND J4 0.0100 1 04/05/2023 19:04 WG2034565 Benzo(a)anthracene ND 0.00100 1 04/05/2023 19:04 WG2034565 Benzo(b)fluoranthene ND 0.00100 1 04/05/2023 19:04 WG2034565 Benzo(k)fluoranthene ND 0.00100 1 04/05/2023 19:04 WG2034565 Benzo(g,h,i)perylene ND 0.00100 1 04/05/2023 19:04 WG2034565 Benzo(a)pyrene ND 0.00100 1 04/05/2023 19:04 WG2034565 Bis(2-chlorethoxy)methane ND 0.0100 1 04/05/2023 19:04 WG2034565 Bis(2-chloroethyl)ether ND 0.0100 1 04/05/2023 19:04 WG2034565 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 04/05/2023 19:04 WG2034565 4-Bromophenyl-phenylether ND 0.0100 1 04/05/2023 19:04 WG2034565 2-Chloronaphthalene ND 0.00100 1 04/05/2023 19:04 WG2034565 4-Chlorophenyl-phenylether ND 0.0100 1 04/05/2023 19:04 WG2034565 Chrysene ND 0.00100 1 04/05/2023 19:04 WG2034565 Dibenz(a,h)anthracene ND 0.00100 1 04/05/2023 19:04 WG2034565 1,2-Dichlorobenzene ND 0.0100 1 04/05/2023 19:04 WG2034565 1,3-Dichlorobenzene ND 0.0100 1 04/05/2023 19:04 WG2034565 1,4-Dichlorobenzene ND 0.0100 1 04/05/2023 19:04 WG2034565 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 8 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 8 of 82 SAMPLE RESULTS - 01 L1600021 MW-7 Collected date/time: 03/29/23 09:10 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND J4 0.0100 1 04/05/2023 19:04 WG2034565 2,4-Dinitrotoluene ND 0.0100 1 04/05/2023 19:04 WG2034565 2,6-Dinitrotoluene ND 0.0100 1 04/05/2023 19:04 WG2034565 Fluoranthene ND 0.00100 1 04/05/2023 19:04 WG2034565 Fluorene ND 0.00100 1 04/05/2023 19:04 WG2034565 Hexachlorobenzene ND 0.00100 1 04/05/2023 19:04 WG2034565 Hexachloro-1,3-butadiene ND 0.0100 1 04/05/2023 19:04 WG2034565 Hexachlorocyclopentadiene ND 0.0100 1 04/05/2023 19:04 WG2034565 Hexachloroethane ND 0.0100 1 04/05/2023 19:04 WG2034565 Indeno(1,2,3-cd)pyrene ND 0.00100 1 04/05/2023 19:04 WG2034565 Isophorone ND 0.0100 1 04/05/2023 19:04 WG2034565 Naphthalene ND 0.00100 1 04/05/2023 19:04 WG2034565 Nitrobenzene ND 0.0100 1 04/05/2023 19:04 WG2034565 n-Nitrosodimethylamine ND 0.0100 1 04/05/2023 19:04 WG2034565 n-Nitrosodiphenylamine ND 0.0100 1 04/05/2023 19:04 WG2034565 n-Nitrosodi-n-propylamine ND 0.0100 1 04/05/2023 19:04 WG2034565 Phenanthrene ND 0.00100 1 04/05/2023 19:04 WG2034565 Benzylbutyl phthalate ND 0.00300 1 04/05/2023 19:04 WG2034565 Bis(2-ethylhexyl)phthalate ND 0.00300 1 04/05/2023 19:04 WG2034565 Di-n-butyl phthalate ND 0.00300 1 04/05/2023 19:04 WG2034565 Diethyl phthalate ND 0.00300 1 04/05/2023 19:04 WG2034565 Dimethyl phthalate ND 0.00300 1 04/05/2023 19:04 WG2034565 Di-n-octyl phthalate ND 0.00300 1 04/05/2023 19:04 WG2034565 Pyrene ND 0.00100 1 04/05/2023 19:04 WG2034565 1,2,4-Trichlorobenzene ND 0.0100 1 04/05/2023 19:04 WG2034565 4-Chloro-3-methylphenol ND 0.0100 1 04/05/2023 19:04 WG2034565 2-Chlorophenol ND 0.0100 1 04/05/2023 19:04 WG2034565 2,4-Dichlorophenol ND 0.0100 1 04/05/2023 19:04 WG2034565 2,4-Dimethylphenol ND 0.0100 1 04/05/2023 19:04 WG2034565 4,6-Dinitro-2-methylphenol ND 0.0100 1 04/05/2023 19:04 WG2034565 2,4-Dinitrophenol ND 0.0100 1 04/05/2023 19:04 WG2034565 2-Nitrophenol ND 0.0100 1 04/05/2023 19:04 WG2034565 4-Nitrophenol ND 0.0100 1 04/05/2023 19:04 WG2034565 Pentachlorophenol ND 0.0100 1 04/05/2023 19:04 WG2034565 Phenol ND 0.0100 1 04/05/2023 19:04 WG2034565 2,4,6-Trichlorophenol ND 0.0100 1 04/05/2023 19:04 WG2034565 (S) 2-Fluorophenol 19.7 10.0-120 04/05/2023 19:04 WG2034565 (S) Phenol-d5 12.4 10.0-120 04/05/2023 19:04 WG2034565 (S) Nitrobenzene-d5 46.8 10.0-127 04/05/2023 19:04 WG2034565 (S) 2-Fluorobiphenyl 38.7 10.0-130 04/05/2023 19:04 WG2034565 (S) 2,4,6-Tribromophenol 25.6 10.0-155 04/05/2023 19:04 WG2034565 (S) p-Terphenyl-d14 37.8 10.0-128 04/05/2023 19:04 WG2034565 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.000562 B 0.000400 1 04/01/2023 04:55 WG2032453 (S) Nitrobenzene-d5 33.6 10.0-120 04/01/2023 04:55 WG2032453 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 9 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 9 of 82 SAMPLE RESULTS - 02 L1600021 GMW-3 Collected date/time: 03/29/23 10:00 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/06/2023 11:42 WG2033924 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0675 0.0100 1 04/04/2023 13:32 WG2033308 Barium,Dissolved 0.169 0.00500 1 04/04/2023 13:32 WG2033308 Cadmium,Dissolved ND 0.00200 1 04/04/2023 13:32 WG2033308 Chromium,Dissolved ND 0.0100 1 04/04/2023 13:32 WG2033308 Iron,Dissolved ND 0.100 1 04/04/2023 13:32 WG2033308 Lead,Dissolved ND 0.00600 1 04/04/2023 13:32 WG2033308 Manganese,Dissolved 0.260 0.0100 1 04/04/2023 13:32 WG2033308 Selenium,Dissolved ND 0.0100 1 04/04/2023 13:32 WG2033308 Silver,Dissolved ND 0.00500 1 04/04/2023 13:32 WG2033308 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 04/04/2023 05:47 WG2035040 Acrolein ND 0.0500 1 04/04/2023 05:47 WG2035040 Acrylonitrile ND 0.0100 1 04/04/2023 05:47 WG2035040 Benzene ND 0.00100 1 04/04/2023 05:47 WG2035040 Bromobenzene ND 0.00100 1 04/04/2023 05:47 WG2035040 Bromodichloromethane ND 0.00100 1 04/04/2023 05:47 WG2035040 Bromoform ND 0.00100 1 04/04/2023 05:47 WG2035040 Bromomethane ND 0.00500 1 04/04/2023 05:47 WG2035040 n-Butylbenzene ND 0.00100 1 04/04/2023 05:47 WG2035040 sec-Butylbenzene ND 0.00100 1 04/04/2023 05:47 WG2035040 tert-Butylbenzene ND 0.00100 1 04/04/2023 05:47 WG2035040 Carbon tetrachloride ND 0.00100 1 04/04/2023 05:47 WG2035040 Chlorobenzene ND 0.00100 1 04/04/2023 05:47 WG2035040 Chlorodibromomethane ND 0.00100 1 04/04/2023 05:47 WG2035040 Chloroethane ND 0.00500 1 04/04/2023 05:47 WG2035040 Chloroform ND 0.00500 1 04/04/2023 05:47 WG2035040 Chloromethane ND 0.00250 1 04/04/2023 05:47 WG2035040 2-Chlorotoluene ND 0.00100 1 04/04/2023 05:47 WG2035040 4-Chlorotoluene ND 0.00100 1 04/04/2023 05:47 WG2035040 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/04/2023 05:47 WG2035040 1,2-Dibromoethane ND 0.00100 1 04/04/2023 05:47 WG2035040 Dibromomethane ND 0.00100 1 04/04/2023 05:47 WG2035040 1,2-Dichlorobenzene ND 0.00100 1 04/04/2023 05:47 WG2035040 1,3-Dichlorobenzene ND 0.00100 1 04/04/2023 05:47 WG2035040 1,4-Dichlorobenzene ND 0.00100 1 04/04/2023 05:47 WG2035040 Dichlorodifluoromethane ND 0.00500 1 04/04/2023 05:47 WG2035040 1,1-Dichloroethane ND 0.00100 1 04/04/2023 05:47 WG2035040 1,2-Dichloroethane ND 0.00100 1 04/04/2023 05:47 WG2035040 1,1-Dichloroethene 0.00233 0.00100 1 04/04/2023 05:47 WG2035040 cis-1,2-Dichloroethene ND 0.00100 1 04/04/2023 05:47 WG2035040 trans-1,2-Dichloroethene ND 0.00100 1 04/04/2023 05:47 WG2035040 1,2-Dichloropropane ND 0.00100 1 04/04/2023 05:47 WG2035040 1,1-Dichloropropene ND 0.00100 1 04/04/2023 05:47 WG2035040 1,3-Dichloropropane ND 0.00100 1 04/04/2023 05:47 WG2035040 cis-1,3-Dichloropropene ND J4 0.00100 1 04/04/2023 05:47 WG2035040 trans-1,3-Dichloropropene ND J4 0.00100 1 04/04/2023 05:47 WG2035040 2,2-Dichloropropane ND 0.00100 1 04/04/2023 05:47 WG2035040 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 10 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 10 of 82 SAMPLE RESULTS - 02 L1600021 GMW-3 Collected date/time: 03/29/23 10:00 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/04/2023 05:47 WG2035040 Ethylbenzene ND 0.00100 1 04/04/2023 05:47 WG2035040 Hexachloro-1,3-butadiene ND 0.00100 1 04/04/2023 05:47 WG2035040 Isopropylbenzene ND 0.00100 1 04/04/2023 05:47 WG2035040 p-Isopropyltoluene ND 0.00100 1 04/04/2023 05:47 WG2035040 2-Butanone (MEK)ND 0.0100 1 04/04/2023 05:47 WG2035040 Methylene Chloride ND 0.00500 1 04/04/2023 05:47 WG2035040 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/04/2023 05:47 WG2035040 Methyl tert-butyl ether ND 0.00100 1 04/04/2023 05:47 WG2035040 Naphthalene ND 0.00500 1 04/04/2023 05:47 WG2035040 n-Propylbenzene ND 0.00100 1 04/04/2023 05:47 WG2035040 Styrene ND 0.00100 1 04/04/2023 05:47 WG2035040 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/04/2023 05:47 WG2035040 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/04/2023 05:47 WG2035040 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/04/2023 05:47 WG2035040 Tetrachloroethene ND 0.00100 1 04/04/2023 05:47 WG2035040 Toluene ND 0.00100 1 04/04/2023 05:47 WG2035040 1,2,3-Trichlorobenzene ND 0.00100 1 04/04/2023 05:47 WG2035040 1,2,4-Trichlorobenzene ND 0.00100 1 04/04/2023 05:47 WG2035040 1,1,1-Trichloroethane ND 0.00100 1 04/04/2023 05:47 WG2035040 1,1,2-Trichloroethane ND 0.00100 1 04/04/2023 05:47 WG2035040 Trichloroethene ND 0.00100 1 04/04/2023 05:47 WG2035040 Trichlorofluoromethane ND J3 0.00500 1 04/04/2023 05:47 WG2035040 1,2,3-Trichloropropane ND 0.00250 1 04/04/2023 05:47 WG2035040 1,2,4-Trimethylbenzene ND 0.00100 1 04/04/2023 05:47 WG2035040 1,2,3-Trimethylbenzene ND 0.00100 1 04/04/2023 05:47 WG2035040 1,3,5-Trimethylbenzene ND 0.00100 1 04/04/2023 05:47 WG2035040 Vinyl chloride ND 0.00100 1 04/04/2023 05:47 WG2035040 Xylenes, Total ND 0.00300 1 04/04/2023 05:47 WG2035040 (S) Toluene-d8 93.3 80.0-120 04/04/2023 05:47 WG2035040 (S) 4-Bromofluorobenzene 83.8 77.0-126 04/04/2023 05:47 WG2035040 (S) 1,2-Dichloroethane-d4 95.0 70.0-130 04/04/2023 05:47 WG2035040 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.0104 0.000400 1 04/01/2023 05:14 WG2032453 (S) Nitrobenzene-d5 38.4 10.0-120 04/01/2023 05:14 WG2032453 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 11 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 11 of 82 SAMPLE RESULTS - 03 L1600021 MW-16 Collected date/time: 03/29/23 11:05 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/06/2023 11:44 WG2033924 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0707 0.0100 1 04/04/2023 13:35 WG2033308 Barium,Dissolved 0.180 0.00500 1 04/04/2023 13:35 WG2033308 Cadmium,Dissolved ND 0.00200 1 04/04/2023 13:35 WG2033308 Chromium,Dissolved ND 0.0100 1 04/04/2023 13:35 WG2033308 Iron,Dissolved ND 0.100 1 04/04/2023 13:35 WG2033308 Lead,Dissolved ND 0.00600 1 04/04/2023 13:35 WG2033308 Manganese,Dissolved 0.159 0.0100 1 04/04/2023 13:35 WG2033308 Selenium,Dissolved ND 0.0100 1 04/04/2023 19:18 WG2033308 Silver,Dissolved ND 0.00500 1 04/04/2023 13:35 WG2033308 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 04/04/2023 06:08 WG2035040 Acrolein ND 0.0500 1 04/04/2023 06:08 WG2035040 Acrylonitrile ND 0.0100 1 04/04/2023 06:08 WG2035040 Benzene ND 0.00100 1 04/04/2023 06:08 WG2035040 Bromobenzene ND 0.00100 1 04/04/2023 06:08 WG2035040 Bromodichloromethane ND 0.00100 1 04/04/2023 06:08 WG2035040 Bromoform ND 0.00100 1 04/04/2023 06:08 WG2035040 Bromomethane ND 0.00500 1 04/04/2023 06:08 WG2035040 n-Butylbenzene ND 0.00100 1 04/04/2023 06:08 WG2035040 sec-Butylbenzene ND 0.00100 1 04/04/2023 06:08 WG2035040 tert-Butylbenzene ND 0.00100 1 04/04/2023 06:08 WG2035040 Carbon tetrachloride ND 0.00100 1 04/04/2023 06:08 WG2035040 Chlorobenzene ND 0.00100 1 04/04/2023 06:08 WG2035040 Chlorodibromomethane ND 0.00100 1 04/04/2023 06:08 WG2035040 Chloroethane ND 0.00500 1 04/04/2023 06:08 WG2035040 Chloroform ND 0.00500 1 04/04/2023 06:08 WG2035040 Chloromethane ND 0.00250 1 04/04/2023 06:08 WG2035040 2-Chlorotoluene ND 0.00100 1 04/04/2023 06:08 WG2035040 4-Chlorotoluene ND 0.00100 1 04/04/2023 06:08 WG2035040 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/04/2023 06:08 WG2035040 1,2-Dibromoethane ND 0.00100 1 04/04/2023 06:08 WG2035040 Dibromomethane ND 0.00100 1 04/04/2023 06:08 WG2035040 1,2-Dichlorobenzene ND 0.00100 1 04/04/2023 06:08 WG2035040 1,3-Dichlorobenzene ND 0.00100 1 04/04/2023 06:08 WG2035040 1,4-Dichlorobenzene ND 0.00100 1 04/04/2023 06:08 WG2035040 Dichlorodifluoromethane ND 0.00500 1 04/04/2023 06:08 WG2035040 1,1-Dichloroethane 0.0167 0.00100 1 04/04/2023 06:08 WG2035040 1,2-Dichloroethane 0.00172 0.00100 1 04/04/2023 06:08 WG2035040 1,1-Dichloroethene 0.230 0.0100 10 04/06/2023 00:00 WG2036549 cis-1,2-Dichloroethene ND 0.00100 1 04/04/2023 06:08 WG2035040 trans-1,2-Dichloroethene ND 0.00100 1 04/04/2023 06:08 WG2035040 1,2-Dichloropropane ND 0.00100 1 04/04/2023 06:08 WG2035040 1,1-Dichloropropene ND 0.00100 1 04/04/2023 06:08 WG2035040 1,3-Dichloropropane ND 0.00100 1 04/04/2023 06:08 WG2035040 cis-1,3-Dichloropropene ND J4 0.00100 1 04/04/2023 06:08 WG2035040 trans-1,3-Dichloropropene ND J4 0.00100 1 04/04/2023 06:08 WG2035040 2,2-Dichloropropane ND 0.00100 1 04/04/2023 06:08 WG2035040 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 12 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 12 of 82 SAMPLE RESULTS - 03 L1600021 MW-16 Collected date/time: 03/29/23 11:05 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/04/2023 06:08 WG2035040 Ethylbenzene ND 0.00100 1 04/04/2023 06:08 WG2035040 Hexachloro-1,3-butadiene ND 0.00100 1 04/04/2023 06:08 WG2035040 Isopropylbenzene ND 0.00100 1 04/04/2023 06:08 WG2035040 p-Isopropyltoluene ND 0.00100 1 04/04/2023 06:08 WG2035040 2-Butanone (MEK)ND 0.0100 1 04/04/2023 06:08 WG2035040 Methylene Chloride ND 0.00500 1 04/04/2023 06:08 WG2035040 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/04/2023 06:08 WG2035040 Methyl tert-butyl ether ND 0.00100 1 04/04/2023 06:08 WG2035040 Naphthalene ND 0.00500 1 04/04/2023 06:08 WG2035040 n-Propylbenzene ND 0.00100 1 04/04/2023 06:08 WG2035040 Styrene ND 0.00100 1 04/04/2023 06:08 WG2035040 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/04/2023 06:08 WG2035040 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/04/2023 06:08 WG2035040 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/04/2023 06:08 WG2035040 Tetrachloroethene ND 0.00100 1 04/04/2023 06:08 WG2035040 Toluene ND 0.00100 1 04/04/2023 06:08 WG2035040 1,2,3-Trichlorobenzene ND 0.00100 1 04/04/2023 06:08 WG2035040 1,2,4-Trichlorobenzene ND 0.00100 1 04/04/2023 06:08 WG2035040 1,1,1-Trichloroethane ND 0.00100 1 04/04/2023 06:08 WG2035040 1,1,2-Trichloroethane ND 0.00100 1 04/04/2023 06:08 WG2035040 Trichloroethene ND 0.00100 1 04/04/2023 06:08 WG2035040 Trichlorofluoromethane ND J3 0.00500 1 04/04/2023 06:08 WG2035040 1,2,3-Trichloropropane ND 0.00250 1 04/04/2023 06:08 WG2035040 1,2,4-Trimethylbenzene ND 0.00100 1 04/04/2023 06:08 WG2035040 1,2,3-Trimethylbenzene ND 0.00100 1 04/04/2023 06:08 WG2035040 1,3,5-Trimethylbenzene ND 0.00100 1 04/04/2023 06:08 WG2035040 Vinyl chloride 0.00209 0.00100 1 04/04/2023 06:08 WG2035040 Xylenes, Total ND 0.00300 1 04/04/2023 06:08 WG2035040 (S) Toluene-d8 94.0 80.0-120 04/04/2023 06:08 WG2035040 (S) Toluene-d8 112 80.0-120 04/06/2023 00:00 WG2036549 (S) 4-Bromofluorobenzene 83.8 77.0-126 04/04/2023 06:08 WG2035040 (S) 4-Bromofluorobenzene 84.7 77.0-126 04/06/2023 00:00 WG2036549 (S) 1,2-Dichloroethane-d4 103 70.0-130 04/04/2023 06:08 WG2035040 (S) 1,2-Dichloroethane-d4 98.9 70.0-130 04/06/2023 00:00 WG2036549 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 04/05/2023 19:26 WG2034565 Acenaphthylene ND 0.00100 1 04/05/2023 19:26 WG2034565 Anthracene ND 0.00100 1 04/05/2023 19:26 WG2034565 Benzidine ND J4 0.0100 1 04/05/2023 19:26 WG2034565 Benzo(a)anthracene ND 0.00100 1 04/05/2023 19:26 WG2034565 Benzo(b)fluoranthene ND 0.00100 1 04/05/2023 19:26 WG2034565 Benzo(k)fluoranthene ND 0.00100 1 04/05/2023 19:26 WG2034565 Benzo(g,h,i)perylene ND 0.00100 1 04/05/2023 19:26 WG2034565 Benzo(a)pyrene ND 0.00100 1 04/05/2023 19:26 WG2034565 Bis(2-chlorethoxy)methane ND 0.0100 1 04/05/2023 19:26 WG2034565 Bis(2-chloroethyl)ether ND 0.0100 1 04/05/2023 19:26 WG2034565 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 04/05/2023 19:26 WG2034565 4-Bromophenyl-phenylether ND 0.0100 1 04/05/2023 19:26 WG2034565 2-Chloronaphthalene ND 0.00100 1 04/05/2023 19:26 WG2034565 4-Chlorophenyl-phenylether ND 0.0100 1 04/05/2023 19:26 WG2034565 Chrysene ND 0.00100 1 04/05/2023 19:26 WG2034565 Dibenz(a,h)anthracene ND 0.00100 1 04/05/2023 19:26 WG2034565 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 13 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 13 of 82 SAMPLE RESULTS - 03 L1600021 MW-16 Collected date/time: 03/29/23 11:05 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,2-Dichlorobenzene ND 0.0100 1 04/05/2023 19:26 WG2034565 1,3-Dichlorobenzene ND 0.0100 1 04/05/2023 19:26 WG2034565 1,4-Dichlorobenzene ND 0.0100 1 04/05/2023 19:26 WG2034565 3,3-Dichlorobenzidine ND J4 0.0100 1 04/05/2023 19:26 WG2034565 2,4-Dinitrotoluene ND 0.0100 1 04/05/2023 19:26 WG2034565 2,6-Dinitrotoluene ND 0.0100 1 04/05/2023 19:26 WG2034565 Fluoranthene ND 0.00100 1 04/05/2023 19:26 WG2034565 Fluorene ND 0.00100 1 04/05/2023 19:26 WG2034565 Hexachlorobenzene ND 0.00100 1 04/05/2023 19:26 WG2034565 Hexachloro-1,3-butadiene ND 0.0100 1 04/05/2023 19:26 WG2034565 Hexachlorocyclopentadiene ND 0.0100 1 04/05/2023 19:26 WG2034565 Hexachloroethane ND 0.0100 1 04/05/2023 19:26 WG2034565 Indeno(1,2,3-cd)pyrene ND 0.00100 1 04/05/2023 19:26 WG2034565 Isophorone ND 0.0100 1 04/05/2023 19:26 WG2034565 Naphthalene ND 0.00100 1 04/05/2023 19:26 WG2034565 Nitrobenzene ND 0.0100 1 04/05/2023 19:26 WG2034565 n-Nitrosodimethylamine ND 0.0100 1 04/05/2023 19:26 WG2034565 n-Nitrosodiphenylamine ND 0.0100 1 04/05/2023 19:26 WG2034565 n-Nitrosodi-n-propylamine ND 0.0100 1 04/05/2023 19:26 WG2034565 Phenanthrene ND 0.00100 1 04/05/2023 19:26 WG2034565 Benzylbutyl phthalate ND 0.00300 1 04/05/2023 19:26 WG2034565 Bis(2-ethylhexyl)phthalate ND 0.00300 1 04/05/2023 19:26 WG2034565 Di-n-butyl phthalate ND 0.00300 1 04/05/2023 19:26 WG2034565 Diethyl phthalate ND 0.00300 1 04/05/2023 19:26 WG2034565 Dimethyl phthalate ND 0.00300 1 04/05/2023 19:26 WG2034565 Di-n-octyl phthalate ND 0.00300 1 04/05/2023 19:26 WG2034565 Pyrene ND 0.00100 1 04/05/2023 19:26 WG2034565 1,2,4-Trichlorobenzene ND 0.0100 1 04/05/2023 19:26 WG2034565 4-Chloro-3-methylphenol ND 0.0100 1 04/05/2023 19:26 WG2034565 2-Chlorophenol ND 0.0100 1 04/05/2023 19:26 WG2034565 2,4-Dichlorophenol ND 0.0100 1 04/05/2023 19:26 WG2034565 2,4-Dimethylphenol ND 0.0100 1 04/05/2023 19:26 WG2034565 4,6-Dinitro-2-methylphenol ND 0.0100 1 04/05/2023 19:26 WG2034565 2,4-Dinitrophenol ND 0.0100 1 04/05/2023 19:26 WG2034565 2-Nitrophenol ND 0.0100 1 04/05/2023 19:26 WG2034565 4-Nitrophenol ND 0.0100 1 04/05/2023 19:26 WG2034565 Pentachlorophenol ND 0.0100 1 04/05/2023 19:26 WG2034565 Phenol ND 0.0100 1 04/05/2023 19:26 WG2034565 2,4,6-Trichlorophenol ND 0.0100 1 04/05/2023 19:26 WG2034565 (S) 2-Fluorophenol 19.3 10.0-120 04/05/2023 19:26 WG2034565 (S) Phenol-d5 13.2 10.0-120 04/05/2023 19:26 WG2034565 (S) Nitrobenzene-d5 44.8 10.0-127 04/05/2023 19:26 WG2034565 (S) 2-Fluorobiphenyl 36.9 10.0-130 04/05/2023 19:26 WG2034565 (S) 2,4,6-Tribromophenol 24.2 10.0-155 04/05/2023 19:26 WG2034565 (S) p-Terphenyl-d14 31.5 10.0-128 04/05/2023 19:26 WG2034565 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.322 0.000400 1 04/01/2023 05:33 WG2032453 (S) Nitrobenzene-d5 42.2 10.0-120 04/01/2023 05:33 WG2032453 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 14 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 14 of 82 SAMPLE RESULTS - 04 L1600021 DUP MW-16 Collected date/time: 03/29/23 11:05 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/06/2023 11:46 WG2033924 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0776 0.0100 1 04/04/2023 13:43 WG2033308 Barium,Dissolved 0.183 0.00500 1 04/04/2023 13:43 WG2033308 Cadmium,Dissolved ND 0.00200 1 04/04/2023 13:43 WG2033308 Chromium,Dissolved ND 0.0100 1 04/04/2023 13:43 WG2033308 Iron,Dissolved ND 0.100 1 04/04/2023 13:43 WG2033308 Lead,Dissolved ND 0.00600 1 04/04/2023 13:43 WG2033308 Manganese,Dissolved 0.155 0.0100 1 04/04/2023 13:43 WG2033308 Selenium,Dissolved ND 0.0100 1 04/04/2023 13:43 WG2033308 Silver,Dissolved ND 0.00500 1 04/04/2023 13:43 WG2033308 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 04/04/2023 06:30 WG2035040 Acrolein ND 0.0500 1 04/04/2023 06:30 WG2035040 Acrylonitrile ND 0.0100 1 04/04/2023 06:30 WG2035040 Benzene ND 0.00100 1 04/04/2023 06:30 WG2035040 Bromobenzene ND 0.00100 1 04/04/2023 06:30 WG2035040 Bromodichloromethane ND 0.00100 1 04/04/2023 06:30 WG2035040 Bromoform ND 0.00100 1 04/04/2023 06:30 WG2035040 Bromomethane ND 0.00500 1 04/04/2023 06:30 WG2035040 n-Butylbenzene ND 0.00100 1 04/04/2023 06:30 WG2035040 sec-Butylbenzene ND 0.00100 1 04/04/2023 06:30 WG2035040 tert-Butylbenzene ND 0.00100 1 04/04/2023 06:30 WG2035040 Carbon tetrachloride ND 0.00100 1 04/04/2023 06:30 WG2035040 Chlorobenzene ND 0.00100 1 04/04/2023 06:30 WG2035040 Chlorodibromomethane ND 0.00100 1 04/04/2023 06:30 WG2035040 Chloroethane ND 0.00500 1 04/04/2023 06:30 WG2035040 Chloroform ND 0.00500 1 04/04/2023 06:30 WG2035040 Chloromethane ND 0.00250 1 04/04/2023 06:30 WG2035040 2-Chlorotoluene ND 0.00100 1 04/04/2023 06:30 WG2035040 4-Chlorotoluene ND 0.00100 1 04/04/2023 06:30 WG2035040 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/04/2023 06:30 WG2035040 1,2-Dibromoethane ND 0.00100 1 04/04/2023 06:30 WG2035040 Dibromomethane ND 0.00100 1 04/04/2023 06:30 WG2035040 1,2-Dichlorobenzene ND 0.00100 1 04/04/2023 06:30 WG2035040 1,3-Dichlorobenzene ND 0.00100 1 04/04/2023 06:30 WG2035040 1,4-Dichlorobenzene ND 0.00100 1 04/04/2023 06:30 WG2035040 Dichlorodifluoromethane ND 0.00500 1 04/04/2023 06:30 WG2035040 1,1-Dichloroethane 0.0157 0.00100 1 04/04/2023 06:30 WG2035040 1,2-Dichloroethane 0.00177 0.00100 1 04/04/2023 06:30 WG2035040 1,1-Dichloroethene 0.211 0.0100 10 04/06/2023 00:21 WG2036549 cis-1,2-Dichloroethene ND 0.00100 1 04/04/2023 06:30 WG2035040 trans-1,2-Dichloroethene ND 0.00100 1 04/04/2023 06:30 WG2035040 1,2-Dichloropropane ND 0.00100 1 04/04/2023 06:30 WG2035040 1,1-Dichloropropene ND 0.00100 1 04/04/2023 06:30 WG2035040 1,3-Dichloropropane ND 0.00100 1 04/04/2023 06:30 WG2035040 cis-1,3-Dichloropropene ND J4 0.00100 1 04/04/2023 06:30 WG2035040 trans-1,3-Dichloropropene ND J4 0.00100 1 04/04/2023 06:30 WG2035040 2,2-Dichloropropane ND 0.00100 1 04/04/2023 06:30 WG2035040 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 15 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 15 of 82 SAMPLE RESULTS - 04 L1600021 DUP MW-16 Collected date/time: 03/29/23 11:05 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/04/2023 06:30 WG2035040 Ethylbenzene ND 0.00100 1 04/04/2023 06:30 WG2035040 Hexachloro-1,3-butadiene ND 0.00100 1 04/04/2023 06:30 WG2035040 Isopropylbenzene ND 0.00100 1 04/04/2023 06:30 WG2035040 p-Isopropyltoluene ND 0.00100 1 04/04/2023 06:30 WG2035040 2-Butanone (MEK)ND 0.0100 1 04/04/2023 06:30 WG2035040 Methylene Chloride ND 0.00500 1 04/04/2023 06:30 WG2035040 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/04/2023 06:30 WG2035040 Methyl tert-butyl ether ND 0.00100 1 04/04/2023 06:30 WG2035040 Naphthalene ND 0.00500 1 04/04/2023 06:30 WG2035040 n-Propylbenzene ND 0.00100 1 04/04/2023 06:30 WG2035040 Styrene ND 0.00100 1 04/04/2023 06:30 WG2035040 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/04/2023 06:30 WG2035040 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/04/2023 06:30 WG2035040 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/04/2023 06:30 WG2035040 Tetrachloroethene ND 0.00100 1 04/04/2023 06:30 WG2035040 Toluene ND 0.00100 1 04/04/2023 06:30 WG2035040 1,2,3-Trichlorobenzene ND 0.00100 1 04/04/2023 06:30 WG2035040 1,2,4-Trichlorobenzene ND 0.00100 1 04/04/2023 06:30 WG2035040 1,1,1-Trichloroethane ND 0.00100 1 04/04/2023 06:30 WG2035040 1,1,2-Trichloroethane ND 0.00100 1 04/04/2023 06:30 WG2035040 Trichloroethene ND 0.00100 1 04/04/2023 06:30 WG2035040 Trichlorofluoromethane ND J3 0.00500 1 04/04/2023 06:30 WG2035040 1,2,3-Trichloropropane ND 0.00250 1 04/04/2023 06:30 WG2035040 1,2,4-Trimethylbenzene ND 0.00100 1 04/04/2023 06:30 WG2035040 1,2,3-Trimethylbenzene ND 0.00100 1 04/04/2023 06:30 WG2035040 1,3,5-Trimethylbenzene ND 0.00100 1 04/04/2023 06:30 WG2035040 Vinyl chloride 0.00212 0.00100 1 04/04/2023 06:30 WG2035040 Xylenes, Total ND 0.00300 1 04/04/2023 06:30 WG2035040 (S) Toluene-d8 94.0 80.0-120 04/04/2023 06:30 WG2035040 (S) Toluene-d8 113 80.0-120 04/06/2023 00:21 WG2036549 (S) 4-Bromofluorobenzene 88.8 77.0-126 04/04/2023 06:30 WG2035040 (S) 4-Bromofluorobenzene 84.2 77.0-126 04/06/2023 00:21 WG2036549 (S) 1,2-Dichloroethane-d4 97.6 70.0-130 04/04/2023 06:30 WG2035040 (S) 1,2-Dichloroethane-d4 103 70.0-130 04/06/2023 00:21 WG2036549 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 04/05/2023 19:47 WG2034565 Acenaphthylene ND 0.00100 1 04/05/2023 19:47 WG2034565 Anthracene ND 0.00100 1 04/05/2023 19:47 WG2034565 Benzidine ND J4 0.0100 1 04/05/2023 19:47 WG2034565 Benzo(a)anthracene ND 0.00100 1 04/05/2023 19:47 WG2034565 Benzo(b)fluoranthene ND 0.00100 1 04/05/2023 19:47 WG2034565 Benzo(k)fluoranthene ND 0.00100 1 04/05/2023 19:47 WG2034565 Benzo(g,h,i)perylene ND 0.00100 1 04/05/2023 19:47 WG2034565 Benzo(a)pyrene ND 0.00100 1 04/05/2023 19:47 WG2034565 Bis(2-chlorethoxy)methane ND 0.0100 1 04/05/2023 19:47 WG2034565 Bis(2-chloroethyl)ether ND 0.0100 1 04/05/2023 19:47 WG2034565 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 04/05/2023 19:47 WG2034565 4-Bromophenyl-phenylether ND 0.0100 1 04/05/2023 19:47 WG2034565 2-Chloronaphthalene ND 0.00100 1 04/05/2023 19:47 WG2034565 4-Chlorophenyl-phenylether ND 0.0100 1 04/05/2023 19:47 WG2034565 Chrysene ND 0.00100 1 04/05/2023 19:47 WG2034565 Dibenz(a,h)anthracene ND 0.00100 1 04/05/2023 19:47 WG2034565 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 16 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 16 of 82 SAMPLE RESULTS - 04 L1600021 DUP MW-16 Collected date/time: 03/29/23 11:05 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,2-Dichlorobenzene ND 0.0100 1 04/05/2023 19:47 WG2034565 1,3-Dichlorobenzene ND 0.0100 1 04/05/2023 19:47 WG2034565 1,4-Dichlorobenzene ND 0.0100 1 04/05/2023 19:47 WG2034565 3,3-Dichlorobenzidine ND J4 0.0100 1 04/05/2023 19:47 WG2034565 2,4-Dinitrotoluene ND 0.0100 1 04/05/2023 19:47 WG2034565 2,6-Dinitrotoluene ND 0.0100 1 04/05/2023 19:47 WG2034565 Fluoranthene ND 0.00100 1 04/05/2023 19:47 WG2034565 Fluorene ND 0.00100 1 04/05/2023 19:47 WG2034565 Hexachlorobenzene ND 0.00100 1 04/05/2023 19:47 WG2034565 Hexachloro-1,3-butadiene ND 0.0100 1 04/05/2023 19:47 WG2034565 Hexachlorocyclopentadiene ND 0.0100 1 04/05/2023 19:47 WG2034565 Hexachloroethane ND 0.0100 1 04/05/2023 19:47 WG2034565 Indeno(1,2,3-cd)pyrene ND 0.00100 1 04/05/2023 19:47 WG2034565 Isophorone ND 0.0100 1 04/05/2023 19:47 WG2034565 Naphthalene ND 0.00100 1 04/05/2023 19:47 WG2034565 Nitrobenzene ND 0.0100 1 04/05/2023 19:47 WG2034565 n-Nitrosodimethylamine ND 0.0100 1 04/05/2023 19:47 WG2034565 n-Nitrosodiphenylamine ND 0.0100 1 04/05/2023 19:47 WG2034565 n-Nitrosodi-n-propylamine ND 0.0100 1 04/05/2023 19:47 WG2034565 Phenanthrene ND 0.00100 1 04/05/2023 19:47 WG2034565 Benzylbutyl phthalate ND 0.00300 1 04/05/2023 19:47 WG2034565 Bis(2-ethylhexyl)phthalate ND 0.00300 1 04/05/2023 19:47 WG2034565 Di-n-butyl phthalate ND 0.00300 1 04/05/2023 19:47 WG2034565 Diethyl phthalate ND 0.00300 1 04/05/2023 19:47 WG2034565 Dimethyl phthalate ND 0.00300 1 04/05/2023 19:47 WG2034565 Di-n-octyl phthalate ND 0.00300 1 04/05/2023 19:47 WG2034565 Pyrene ND 0.00100 1 04/05/2023 19:47 WG2034565 1,2,4-Trichlorobenzene ND 0.0100 1 04/05/2023 19:47 WG2034565 4-Chloro-3-methylphenol ND 0.0100 1 04/05/2023 19:47 WG2034565 2-Chlorophenol ND 0.0100 1 04/05/2023 19:47 WG2034565 2,4-Dichlorophenol ND 0.0100 1 04/05/2023 19:47 WG2034565 2,4-Dimethylphenol ND 0.0100 1 04/05/2023 19:47 WG2034565 4,6-Dinitro-2-methylphenol ND 0.0100 1 04/05/2023 19:47 WG2034565 2,4-Dinitrophenol ND 0.0100 1 04/05/2023 19:47 WG2034565 2-Nitrophenol ND 0.0100 1 04/05/2023 19:47 WG2034565 4-Nitrophenol ND 0.0100 1 04/05/2023 19:47 WG2034565 Pentachlorophenol ND 0.0100 1 04/05/2023 19:47 WG2034565 Phenol ND 0.0100 1 04/05/2023 19:47 WG2034565 2,4,6-Trichlorophenol ND 0.0100 1 04/05/2023 19:47 WG2034565 (S) 2-Fluorophenol 14.1 10.0-120 04/05/2023 19:47 WG2034565 (S) Phenol-d5 10.5 10.0-120 04/05/2023 19:47 WG2034565 (S) Nitrobenzene-d5 38.7 10.0-127 04/05/2023 19:47 WG2034565 (S) 2-Fluorobiphenyl 32.6 10.0-130 04/05/2023 19:47 WG2034565 (S) 2,4,6-Tribromophenol 20.6 10.0-155 04/05/2023 19:47 WG2034565 (S) p-Terphenyl-d14 27.3 10.0-128 04/05/2023 19:47 WG2034565 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.318 0.000400 1 04/01/2023 03:18 WG2032453 (S) Nitrobenzene-d5 47.1 10.0-120 04/01/2023 03:18 WG2032453 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 17 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 17 of 82 SAMPLE RESULTS - 05 L1600021 GP-13 Collected date/time: 03/29/23 12:35 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/06/2023 11:49 WG2033924 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 04/04/2023 13:46 WG2033308 Barium,Dissolved 0.252 0.00500 1 04/04/2023 13:46 WG2033308 Cadmium,Dissolved ND 0.00200 1 04/04/2023 13:46 WG2033308 Chromium,Dissolved ND 0.0100 1 04/04/2023 13:46 WG2033308 Iron,Dissolved ND 0.100 1 04/04/2023 13:46 WG2033308 Lead,Dissolved ND 0.00600 1 04/04/2023 13:46 WG2033308 Manganese,Dissolved 0.185 0.0100 1 04/04/2023 13:46 WG2033308 Selenium,Dissolved ND 0.0100 1 04/04/2023 13:46 WG2033308 Silver,Dissolved ND 0.00500 1 04/04/2023 13:46 WG2033308 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 04/04/2023 06:52 WG2035040 Acrolein ND 0.0500 1 04/04/2023 06:52 WG2035040 Acrylonitrile ND 0.0100 1 04/04/2023 06:52 WG2035040 Benzene ND 0.00100 1 04/04/2023 06:52 WG2035040 Bromobenzene ND 0.00100 1 04/04/2023 06:52 WG2035040 Bromodichloromethane ND 0.00100 1 04/04/2023 06:52 WG2035040 Bromoform ND 0.00100 1 04/04/2023 06:52 WG2035040 Bromomethane ND 0.00500 1 04/04/2023 06:52 WG2035040 n-Butylbenzene ND 0.00100 1 04/04/2023 06:52 WG2035040 sec-Butylbenzene ND 0.00100 1 04/04/2023 06:52 WG2035040 tert-Butylbenzene ND 0.00100 1 04/04/2023 06:52 WG2035040 Carbon tetrachloride ND 0.00100 1 04/04/2023 06:52 WG2035040 Chlorobenzene ND 0.00100 1 04/04/2023 06:52 WG2035040 Chlorodibromomethane ND 0.00100 1 04/04/2023 06:52 WG2035040 Chloroethane ND 0.00500 1 04/04/2023 06:52 WG2035040 Chloroform ND 0.00500 1 04/04/2023 06:52 WG2035040 Chloromethane ND 0.00250 1 04/04/2023 06:52 WG2035040 2-Chlorotoluene ND 0.00100 1 04/04/2023 06:52 WG2035040 4-Chlorotoluene ND 0.00100 1 04/04/2023 06:52 WG2035040 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/04/2023 06:52 WG2035040 1,2-Dibromoethane ND 0.00100 1 04/04/2023 06:52 WG2035040 Dibromomethane ND 0.00100 1 04/04/2023 06:52 WG2035040 1,2-Dichlorobenzene ND 0.00100 1 04/04/2023 06:52 WG2035040 1,3-Dichlorobenzene ND 0.00100 1 04/04/2023 06:52 WG2035040 1,4-Dichlorobenzene ND 0.00100 1 04/04/2023 06:52 WG2035040 Dichlorodifluoromethane ND 0.00500 1 04/04/2023 06:52 WG2035040 1,1-Dichloroethane 0.00654 0.00100 1 04/04/2023 06:52 WG2035040 1,2-Dichloroethane ND 0.00100 1 04/04/2023 06:52 WG2035040 1,1-Dichloroethene 0.00191 0.00100 1 04/05/2023 23:18 WG2036549 cis-1,2-Dichloroethene ND 0.00100 1 04/04/2023 06:52 WG2035040 trans-1,2-Dichloroethene ND 0.00100 1 04/04/2023 06:52 WG2035040 1,2-Dichloropropane ND 0.00100 1 04/04/2023 06:52 WG2035040 1,1-Dichloropropene ND 0.00100 1 04/04/2023 06:52 WG2035040 1,3-Dichloropropane ND 0.00100 1 04/04/2023 06:52 WG2035040 cis-1,3-Dichloropropene ND J4 0.00100 1 04/04/2023 06:52 WG2035040 trans-1,3-Dichloropropene ND J4 0.00100 1 04/04/2023 06:52 WG2035040 2,2-Dichloropropane ND 0.00100 1 04/04/2023 06:52 WG2035040 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 18 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 18 of 82 SAMPLE RESULTS - 05 L1600021 GP-13 Collected date/time: 03/29/23 12:35 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/04/2023 06:52 WG2035040 Ethylbenzene ND 0.00100 1 04/04/2023 06:52 WG2035040 Hexachloro-1,3-butadiene ND 0.00100 1 04/04/2023 06:52 WG2035040 Isopropylbenzene ND 0.00100 1 04/04/2023 06:52 WG2035040 p-Isopropyltoluene ND 0.00100 1 04/04/2023 06:52 WG2035040 2-Butanone (MEK)ND 0.0100 1 04/04/2023 06:52 WG2035040 Methylene Chloride ND 0.00500 1 04/04/2023 06:52 WG2035040 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/04/2023 06:52 WG2035040 Methyl tert-butyl ether ND 0.00100 1 04/04/2023 06:52 WG2035040 Naphthalene ND 0.00500 1 04/04/2023 06:52 WG2035040 n-Propylbenzene ND 0.00100 1 04/04/2023 06:52 WG2035040 Styrene ND 0.00100 1 04/04/2023 06:52 WG2035040 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/04/2023 06:52 WG2035040 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/04/2023 06:52 WG2035040 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/04/2023 06:52 WG2035040 Tetrachloroethene ND 0.00100 1 04/04/2023 06:52 WG2035040 Toluene ND 0.00100 1 04/04/2023 06:52 WG2035040 1,2,3-Trichlorobenzene ND 0.00100 1 04/04/2023 06:52 WG2035040 1,2,4-Trichlorobenzene ND 0.00100 1 04/04/2023 06:52 WG2035040 1,1,1-Trichloroethane ND 0.00100 1 04/04/2023 06:52 WG2035040 1,1,2-Trichloroethane ND 0.00100 1 04/04/2023 06:52 WG2035040 Trichloroethene ND 0.00100 1 04/04/2023 06:52 WG2035040 Trichlorofluoromethane ND J3 0.00500 1 04/04/2023 06:52 WG2035040 1,2,3-Trichloropropane ND 0.00250 1 04/04/2023 06:52 WG2035040 1,2,4-Trimethylbenzene ND 0.00100 1 04/04/2023 06:52 WG2035040 1,2,3-Trimethylbenzene ND 0.00100 1 04/04/2023 06:52 WG2035040 1,3,5-Trimethylbenzene ND 0.00100 1 04/04/2023 06:52 WG2035040 Vinyl chloride ND 0.00100 1 04/04/2023 06:52 WG2035040 Xylenes, Total ND 0.00300 1 04/04/2023 06:52 WG2035040 (S) Toluene-d8 93.3 80.0-120 04/04/2023 06:52 WG2035040 (S) Toluene-d8 111 80.0-120 04/05/2023 23:18 WG2036549 (S) 4-Bromofluorobenzene 82.8 77.0-126 04/04/2023 06:52 WG2035040 (S) 4-Bromofluorobenzene 85.9 77.0-126 04/05/2023 23:18 WG2036549 (S) 1,2-Dichloroethane-d4 106 70.0-130 04/04/2023 06:52 WG2035040 (S) 1,2-Dichloroethane-d4 102 70.0-130 04/05/2023 23:18 WG2036549 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.0528 0.000400 1 04/01/2023 05:52 WG2032453 (S) Nitrobenzene-d5 36.4 10.0-120 04/01/2023 05:52 WG2032453 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 19 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 19 of 82 SAMPLE RESULTS - 06 L1600021 MW-10B Collected date/time: 03/29/23 13:45 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/06/2023 11:51 WG2033924 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 04/04/2023 13:48 WG2033308 Barium,Dissolved 0.344 0.00500 1 04/04/2023 13:48 WG2033308 Cadmium,Dissolved ND 0.00200 1 04/04/2023 13:48 WG2033308 Chromium,Dissolved ND 0.0100 1 04/04/2023 13:48 WG2033308 Iron,Dissolved ND 0.100 1 04/04/2023 13:48 WG2033308 Lead,Dissolved ND 0.00600 1 04/04/2023 13:48 WG2033308 Manganese,Dissolved 0.497 0.0100 1 04/04/2023 13:48 WG2033308 Selenium,Dissolved ND 0.0100 1 04/05/2023 11:20 WG2033308 Silver,Dissolved ND 0.00500 1 04/04/2023 13:48 WG2033308 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 04/04/2023 07:13 WG2035040 Acrolein ND 0.0500 1 04/04/2023 07:13 WG2035040 Acrylonitrile ND 0.0100 1 04/04/2023 07:13 WG2035040 Benzene ND 0.00100 1 04/04/2023 07:13 WG2035040 Bromobenzene ND 0.00100 1 04/04/2023 07:13 WG2035040 Bromodichloromethane ND 0.00100 1 04/04/2023 07:13 WG2035040 Bromoform ND 0.00100 1 04/04/2023 07:13 WG2035040 Bromomethane ND 0.00500 1 04/04/2023 07:13 WG2035040 n-Butylbenzene ND 0.00100 1 04/04/2023 07:13 WG2035040 sec-Butylbenzene ND 0.00100 1 04/04/2023 07:13 WG2035040 tert-Butylbenzene ND 0.00100 1 04/04/2023 07:13 WG2035040 Carbon tetrachloride ND 0.00100 1 04/04/2023 07:13 WG2035040 Chlorobenzene ND 0.00100 1 04/04/2023 07:13 WG2035040 Chlorodibromomethane ND 0.00100 1 04/04/2023 07:13 WG2035040 Chloroethane ND 0.00500 1 04/04/2023 07:13 WG2035040 Chloroform ND 0.00500 1 04/04/2023 07:13 WG2035040 Chloromethane ND 0.00250 1 04/04/2023 07:13 WG2035040 2-Chlorotoluene ND 0.00100 1 04/04/2023 07:13 WG2035040 4-Chlorotoluene ND 0.00100 1 04/04/2023 07:13 WG2035040 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/04/2023 07:13 WG2035040 1,2-Dibromoethane ND 0.00100 1 04/04/2023 07:13 WG2035040 Dibromomethane ND 0.00100 1 04/04/2023 07:13 WG2035040 1,2-Dichlorobenzene ND 0.00100 1 04/04/2023 07:13 WG2035040 1,3-Dichlorobenzene ND 0.00100 1 04/04/2023 07:13 WG2035040 1,4-Dichlorobenzene ND 0.00100 1 04/04/2023 07:13 WG2035040 Dichlorodifluoromethane ND 0.00500 1 04/04/2023 07:13 WG2035040 1,1-Dichloroethane 0.00542 0.00100 1 04/04/2023 07:13 WG2035040 1,2-Dichloroethane ND 0.00100 1 04/04/2023 07:13 WG2035040 1,1-Dichloroethene 0.0501 0.00100 1 04/04/2023 07:13 WG2035040 cis-1,2-Dichloroethene ND 0.00100 1 04/04/2023 07:13 WG2035040 trans-1,2-Dichloroethene ND 0.00100 1 04/04/2023 07:13 WG2035040 1,2-Dichloropropane ND 0.00100 1 04/04/2023 07:13 WG2035040 1,1-Dichloropropene ND 0.00100 1 04/04/2023 07:13 WG2035040 1,3-Dichloropropane ND 0.00100 1 04/04/2023 07:13 WG2035040 cis-1,3-Dichloropropene ND J4 0.00100 1 04/04/2023 07:13 WG2035040 trans-1,3-Dichloropropene ND J4 0.00100 1 04/04/2023 07:13 WG2035040 2,2-Dichloropropane ND 0.00100 1 04/04/2023 07:13 WG2035040 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 20 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 20 of 82 SAMPLE RESULTS - 06 L1600021 MW-10B Collected date/time: 03/29/23 13:45 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/04/2023 07:13 WG2035040 Ethylbenzene ND 0.00100 1 04/04/2023 07:13 WG2035040 Hexachloro-1,3-butadiene ND 0.00100 1 04/04/2023 07:13 WG2035040 Isopropylbenzene ND 0.00100 1 04/04/2023 07:13 WG2035040 p-Isopropyltoluene ND 0.00100 1 04/04/2023 07:13 WG2035040 2-Butanone (MEK)ND 0.0100 1 04/04/2023 07:13 WG2035040 Methylene Chloride ND 0.00500 1 04/04/2023 07:13 WG2035040 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/04/2023 07:13 WG2035040 Methyl tert-butyl ether ND 0.00100 1 04/04/2023 07:13 WG2035040 Naphthalene ND 0.00500 1 04/04/2023 07:13 WG2035040 n-Propylbenzene ND 0.00100 1 04/04/2023 07:13 WG2035040 Styrene ND 0.00100 1 04/04/2023 07:13 WG2035040 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/04/2023 07:13 WG2035040 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/04/2023 07:13 WG2035040 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/04/2023 07:13 WG2035040 Tetrachloroethene ND 0.00100 1 04/04/2023 07:13 WG2035040 Toluene ND 0.00100 1 04/04/2023 07:13 WG2035040 1,2,3-Trichlorobenzene ND 0.00100 1 04/04/2023 07:13 WG2035040 1,2,4-Trichlorobenzene ND 0.00100 1 04/04/2023 07:13 WG2035040 1,1,1-Trichloroethane 0.00142 0.00100 1 04/04/2023 07:13 WG2035040 1,1,2-Trichloroethane ND 0.00100 1 04/04/2023 07:13 WG2035040 Trichloroethene ND 0.00100 1 04/04/2023 07:13 WG2035040 Trichlorofluoromethane ND J3 0.00500 1 04/04/2023 07:13 WG2035040 1,2,3-Trichloropropane ND 0.00250 1 04/04/2023 07:13 WG2035040 1,2,4-Trimethylbenzene ND 0.00100 1 04/04/2023 07:13 WG2035040 1,2,3-Trimethylbenzene ND 0.00100 1 04/04/2023 07:13 WG2035040 1,3,5-Trimethylbenzene ND 0.00100 1 04/04/2023 07:13 WG2035040 Vinyl chloride ND 0.00100 1 04/04/2023 07:13 WG2035040 Xylenes, Total ND 0.00300 1 04/04/2023 07:13 WG2035040 (S) Toluene-d8 94.8 80.0-120 04/04/2023 07:13 WG2035040 (S) 4-Bromofluorobenzene 84.1 77.0-126 04/04/2023 07:13 WG2035040 (S) 1,2-Dichloroethane-d4 103 70.0-130 04/04/2023 07:13 WG2035040 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 04/05/2023 20:09 WG2034565 Acenaphthylene ND 0.00100 1 04/05/2023 20:09 WG2034565 Anthracene ND 0.00100 1 04/05/2023 20:09 WG2034565 Benzidine ND J4 0.0100 1 04/05/2023 20:09 WG2034565 Benzo(a)anthracene ND 0.00100 1 04/05/2023 20:09 WG2034565 Benzo(b)fluoranthene ND 0.00100 1 04/05/2023 20:09 WG2034565 Benzo(k)fluoranthene ND 0.00100 1 04/05/2023 20:09 WG2034565 Benzo(g,h,i)perylene ND 0.00100 1 04/05/2023 20:09 WG2034565 Benzo(a)pyrene ND 0.00100 1 04/05/2023 20:09 WG2034565 Bis(2-chlorethoxy)methane ND 0.0100 1 04/05/2023 20:09 WG2034565 Bis(2-chloroethyl)ether ND 0.0100 1 04/05/2023 20:09 WG2034565 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 04/05/2023 20:09 WG2034565 4-Bromophenyl-phenylether ND 0.0100 1 04/05/2023 20:09 WG2034565 2-Chloronaphthalene ND 0.00100 1 04/05/2023 20:09 WG2034565 4-Chlorophenyl-phenylether ND 0.0100 1 04/05/2023 20:09 WG2034565 Chrysene ND 0.00100 1 04/05/2023 20:09 WG2034565 Dibenz(a,h)anthracene ND 0.00100 1 04/05/2023 20:09 WG2034565 1,2-Dichlorobenzene ND 0.0100 1 04/05/2023 20:09 WG2034565 1,3-Dichlorobenzene ND 0.0100 1 04/05/2023 20:09 WG2034565 1,4-Dichlorobenzene ND 0.0100 1 04/05/2023 20:09 WG2034565 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 21 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 21 of 82 SAMPLE RESULTS - 06 L1600021 MW-10B Collected date/time: 03/29/23 13:45 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND J4 0.0100 1 04/05/2023 20:09 WG2034565 2,4-Dinitrotoluene ND 0.0100 1 04/05/2023 20:09 WG2034565 2,6-Dinitrotoluene ND 0.0100 1 04/05/2023 20:09 WG2034565 Fluoranthene ND 0.00100 1 04/05/2023 20:09 WG2034565 Fluorene ND 0.00100 1 04/05/2023 20:09 WG2034565 Hexachlorobenzene ND 0.00100 1 04/05/2023 20:09 WG2034565 Hexachloro-1,3-butadiene ND 0.0100 1 04/05/2023 20:09 WG2034565 Hexachlorocyclopentadiene ND 0.0100 1 04/05/2023 20:09 WG2034565 Hexachloroethane ND 0.0100 1 04/05/2023 20:09 WG2034565 Indeno(1,2,3-cd)pyrene ND 0.00100 1 04/05/2023 20:09 WG2034565 Isophorone ND 0.0100 1 04/05/2023 20:09 WG2034565 Naphthalene ND 0.00100 1 04/05/2023 20:09 WG2034565 Nitrobenzene ND 0.0100 1 04/05/2023 20:09 WG2034565 n-Nitrosodimethylamine ND 0.0100 1 04/05/2023 20:09 WG2034565 n-Nitrosodiphenylamine ND 0.0100 1 04/05/2023 20:09 WG2034565 n-Nitrosodi-n-propylamine ND 0.0100 1 04/05/2023 20:09 WG2034565 Phenanthrene ND 0.00100 1 04/05/2023 20:09 WG2034565 Benzylbutyl phthalate ND 0.00300 1 04/05/2023 20:09 WG2034565 Bis(2-ethylhexyl)phthalate ND 0.00300 1 04/05/2023 20:09 WG2034565 Di-n-butyl phthalate ND 0.00300 1 04/05/2023 20:09 WG2034565 Diethyl phthalate ND 0.00300 1 04/05/2023 20:09 WG2034565 Dimethyl phthalate ND 0.00300 1 04/05/2023 20:09 WG2034565 Di-n-octyl phthalate ND 0.00300 1 04/05/2023 20:09 WG2034565 Pyrene ND 0.00100 1 04/05/2023 20:09 WG2034565 1,2,4-Trichlorobenzene ND 0.0100 1 04/05/2023 20:09 WG2034565 4-Chloro-3-methylphenol ND 0.0100 1 04/05/2023 20:09 WG2034565 2-Chlorophenol ND 0.0100 1 04/05/2023 20:09 WG2034565 2,4-Dichlorophenol ND 0.0100 1 04/05/2023 20:09 WG2034565 2,4-Dimethylphenol ND 0.0100 1 04/05/2023 20:09 WG2034565 4,6-Dinitro-2-methylphenol ND 0.0100 1 04/05/2023 20:09 WG2034565 2,4-Dinitrophenol ND 0.0100 1 04/05/2023 20:09 WG2034565 2-Nitrophenol ND 0.0100 1 04/05/2023 20:09 WG2034565 4-Nitrophenol ND 0.0100 1 04/05/2023 20:09 WG2034565 Pentachlorophenol ND 0.0100 1 04/05/2023 20:09 WG2034565 Phenol ND 0.0100 1 04/05/2023 20:09 WG2034565 2,4,6-Trichlorophenol ND 0.0100 1 04/05/2023 20:09 WG2034565 (S) 2-Fluorophenol 19.8 10.0-120 04/05/2023 20:09 WG2034565 (S) Phenol-d5 14.0 10.0-120 04/05/2023 20:09 WG2034565 (S) Nitrobenzene-d5 49.2 10.0-127 04/05/2023 20:09 WG2034565 (S) 2-Fluorobiphenyl 39.6 10.0-130 04/05/2023 20:09 WG2034565 (S) 2,4,6-Tribromophenol 28.0 10.0-155 04/05/2023 20:09 WG2034565 (S) p-Terphenyl-d14 29.9 10.0-128 04/05/2023 20:09 WG2034565 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.0178 0.000400 1 04/01/2023 03:37 WG2032453 (S) Nitrobenzene-d5 34.0 10.0-120 04/01/2023 03:37 WG2032453 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 22 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 22 of 82 SAMPLE RESULTS - 07 L1600021 MW-20 Collected date/time: 03/29/23 14:45 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/05/2023 20:25 WG2035622 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.114 0.0100 1 04/06/2023 13:06 WG2035944 Barium,Dissolved 0.240 0.00500 1 04/06/2023 13:06 WG2035944 Cadmium,Dissolved ND 0.00200 1 04/06/2023 13:06 WG2035944 Chromium,Dissolved ND 0.0100 1 04/06/2023 13:06 WG2035944 Iron,Dissolved ND 0.100 1 04/06/2023 13:06 WG2035944 Lead,Dissolved ND 0.00600 1 04/06/2023 13:06 WG2035944 Manganese,Dissolved 0.139 0.0100 1 04/06/2023 13:06 WG2035944 Selenium,Dissolved ND 0.0100 1 04/06/2023 13:06 WG2035944 Silver,Dissolved ND 0.00500 1 04/06/2023 13:06 WG2035944 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 04/04/2023 18:40 WG2035565 Acrolein ND 0.0500 1 04/04/2023 18:40 WG2035565 Acrylonitrile ND 0.0100 1 04/04/2023 18:40 WG2035565 Benzene ND 0.00100 1 04/04/2023 18:40 WG2035565 Bromobenzene ND 0.00100 1 04/04/2023 18:40 WG2035565 Bromodichloromethane ND 0.00100 1 04/04/2023 18:40 WG2035565 Bromoform ND 0.00100 1 04/04/2023 18:40 WG2035565 Bromomethane ND 0.00500 1 04/04/2023 18:40 WG2035565 n-Butylbenzene ND 0.00100 1 04/04/2023 18:40 WG2035565 sec-Butylbenzene ND 0.00100 1 04/04/2023 18:40 WG2035565 tert-Butylbenzene ND 0.00100 1 04/04/2023 18:40 WG2035565 Carbon tetrachloride ND 0.00100 1 04/04/2023 18:40 WG2035565 Chlorobenzene ND 0.00100 1 04/04/2023 18:40 WG2035565 Chlorodibromomethane ND 0.00100 1 04/04/2023 18:40 WG2035565 Chloroethane ND 0.00500 1 04/04/2023 18:40 WG2035565 Chloroform ND 0.00500 1 04/04/2023 18:40 WG2035565 Chloromethane ND 0.00250 1 04/04/2023 18:40 WG2035565 2-Chlorotoluene ND 0.00100 1 04/04/2023 18:40 WG2035565 4-Chlorotoluene ND 0.00100 1 04/04/2023 18:40 WG2035565 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/04/2023 18:40 WG2035565 1,2-Dibromoethane ND 0.00100 1 04/04/2023 18:40 WG2035565 Dibromomethane ND 0.00100 1 04/04/2023 18:40 WG2035565 1,2-Dichlorobenzene ND 0.00100 1 04/04/2023 18:40 WG2035565 1,3-Dichlorobenzene ND 0.00100 1 04/04/2023 18:40 WG2035565 1,4-Dichlorobenzene ND 0.00100 1 04/04/2023 18:40 WG2035565 Dichlorodifluoromethane ND 0.00500 1 04/04/2023 18:40 WG2035565 1,1-Dichloroethane 0.00705 0.00100 1 04/04/2023 18:40 WG2035565 1,2-Dichloroethane ND 0.00100 1 04/04/2023 18:40 WG2035565 1,1-Dichloroethene 0.0540 0.00100 1 04/04/2023 18:40 WG2035565 cis-1,2-Dichloroethene ND 0.00100 1 04/04/2023 18:40 WG2035565 trans-1,2-Dichloroethene ND 0.00100 1 04/04/2023 18:40 WG2035565 1,2-Dichloropropane ND 0.00100 1 04/04/2023 18:40 WG2035565 1,1-Dichloropropene ND 0.00100 1 04/04/2023 18:40 WG2035565 1,3-Dichloropropane ND 0.00100 1 04/04/2023 18:40 WG2035565 cis-1,3-Dichloropropene ND 0.00100 1 04/04/2023 18:40 WG2035565 trans-1,3-Dichloropropene ND 0.00100 1 04/04/2023 18:40 WG2035565 2,2-Dichloropropane ND 0.00100 1 04/04/2023 18:40 WG2035565 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 23 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 23 of 82 SAMPLE RESULTS - 07 L1600021 MW-20 Collected date/time: 03/29/23 14:45 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/04/2023 18:40 WG2035565 Ethylbenzene ND 0.00100 1 04/04/2023 18:40 WG2035565 Hexachloro-1,3-butadiene ND J3 0.00100 1 04/04/2023 18:40 WG2035565 Isopropylbenzene ND 0.00100 1 04/04/2023 18:40 WG2035565 p-Isopropyltoluene ND 0.00100 1 04/04/2023 18:40 WG2035565 2-Butanone (MEK)ND 0.0100 1 04/04/2023 18:40 WG2035565 Methylene Chloride ND 0.00500 1 04/04/2023 18:40 WG2035565 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/04/2023 18:40 WG2035565 Methyl tert-butyl ether ND 0.00100 1 04/04/2023 18:40 WG2035565 Naphthalene ND 0.00500 1 04/04/2023 18:40 WG2035565 n-Propylbenzene ND 0.00100 1 04/04/2023 18:40 WG2035565 Styrene ND 0.00100 1 04/04/2023 18:40 WG2035565 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/04/2023 18:40 WG2035565 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/04/2023 18:40 WG2035565 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/04/2023 18:40 WG2035565 Tetrachloroethene ND 0.00100 1 04/04/2023 18:40 WG2035565 Toluene ND 0.00100 1 04/04/2023 18:40 WG2035565 1,2,3-Trichlorobenzene ND 0.00100 1 04/04/2023 18:40 WG2035565 1,2,4-Trichlorobenzene ND 0.00100 1 04/04/2023 18:40 WG2035565 1,1,1-Trichloroethane ND 0.00100 1 04/04/2023 18:40 WG2035565 1,1,2-Trichloroethane ND 0.00100 1 04/04/2023 18:40 WG2035565 Trichloroethene ND 0.00100 1 04/04/2023 18:40 WG2035565 Trichlorofluoromethane ND 0.00500 1 04/04/2023 18:40 WG2035565 1,2,3-Trichloropropane ND 0.00250 1 04/04/2023 18:40 WG2035565 1,2,4-Trimethylbenzene ND 0.00100 1 04/04/2023 18:40 WG2035565 1,2,3-Trimethylbenzene ND 0.00100 1 04/04/2023 18:40 WG2035565 1,3,5-Trimethylbenzene ND 0.00100 1 04/04/2023 18:40 WG2035565 Vinyl chloride ND 0.00100 1 04/04/2023 18:40 WG2035565 Xylenes, Total ND 0.00300 1 04/04/2023 18:40 WG2035565 (S) Toluene-d8 106 80.0-120 04/04/2023 18:40 WG2035565 (S) 4-Bromofluorobenzene 104 77.0-126 04/04/2023 18:40 WG2035565 (S) 1,2-Dichloroethane-d4 99.8 70.0-130 04/04/2023 18:40 WG2035565 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 04/05/2023 04:56 WG2035185 Acenaphthylene ND 0.00100 1 04/05/2023 04:56 WG2035185 Anthracene ND 0.00100 1 04/05/2023 04:56 WG2035185 Benzidine ND J4 0.0100 1 04/05/2023 04:56 WG2035185 Benzo(a)anthracene ND 0.00100 1 04/05/2023 04:56 WG2035185 Benzo(b)fluoranthene ND 0.00100 1 04/05/2023 04:56 WG2035185 Benzo(k)fluoranthene ND 0.00100 1 04/05/2023 04:56 WG2035185 Benzo(g,h,i)perylene ND 0.00100 1 04/05/2023 04:56 WG2035185 Benzo(a)pyrene ND 0.00100 1 04/05/2023 04:56 WG2035185 Bis(2-chlorethoxy)methane ND 0.0100 1 04/05/2023 04:56 WG2035185 Bis(2-chloroethyl)ether ND 0.0100 1 04/05/2023 04:56 WG2035185 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 04/05/2023 04:56 WG2035185 4-Bromophenyl-phenylether ND 0.0100 1 04/05/2023 04:56 WG2035185 2-Chloronaphthalene ND 0.00100 1 04/05/2023 04:56 WG2035185 4-Chlorophenyl-phenylether ND 0.0100 1 04/05/2023 04:56 WG2035185 Chrysene ND 0.00100 1 04/05/2023 04:56 WG2035185 Dibenz(a,h)anthracene ND 0.00100 1 04/05/2023 04:56 WG2035185 1,2-Dichlorobenzene ND 0.0100 1 04/05/2023 04:56 WG2035185 1,3-Dichlorobenzene ND 0.0100 1 04/05/2023 04:56 WG2035185 1,4-Dichlorobenzene ND 0.0100 1 04/05/2023 04:56 WG2035185 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 24 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 24 of 82 SAMPLE RESULTS - 07 L1600021 MW-20 Collected date/time: 03/29/23 14:45 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 04/05/2023 04:56 WG2035185 2,4-Dinitrotoluene ND 0.0100 1 04/05/2023 04:56 WG2035185 2,6-Dinitrotoluene ND 0.0100 1 04/05/2023 04:56 WG2035185 Fluoranthene ND 0.00100 1 04/05/2023 04:56 WG2035185 Fluorene ND 0.00100 1 04/05/2023 04:56 WG2035185 Hexachlorobenzene ND 0.00100 1 04/05/2023 04:56 WG2035185 Hexachloro-1,3-butadiene ND 0.0100 1 04/05/2023 04:56 WG2035185 Hexachlorocyclopentadiene ND 0.0100 1 04/05/2023 04:56 WG2035185 Hexachloroethane ND 0.0100 1 04/05/2023 04:56 WG2035185 Indeno(1,2,3-cd)pyrene ND 0.00100 1 04/05/2023 04:56 WG2035185 Isophorone ND 0.0100 1 04/05/2023 04:56 WG2035185 Naphthalene ND 0.00100 1 04/05/2023 04:56 WG2035185 Nitrobenzene ND 0.0100 1 04/05/2023 04:56 WG2035185 n-Nitrosodimethylamine ND 0.0100 1 04/05/2023 04:56 WG2035185 n-Nitrosodiphenylamine ND 0.0100 1 04/05/2023 04:56 WG2035185 n-Nitrosodi-n-propylamine ND 0.0100 1 04/05/2023 04:56 WG2035185 Phenanthrene ND 0.00100 1 04/05/2023 04:56 WG2035185 Benzylbutyl phthalate ND 0.00300 1 04/05/2023 04:56 WG2035185 Bis(2-ethylhexyl)phthalate ND 0.00300 1 04/05/2023 04:56 WG2035185 Di-n-butyl phthalate ND 0.00300 1 04/05/2023 04:56 WG2035185 Diethyl phthalate ND 0.00300 1 04/05/2023 04:56 WG2035185 Dimethyl phthalate ND 0.00300 1 04/05/2023 04:56 WG2035185 Di-n-octyl phthalate ND 0.00300 1 04/05/2023 04:56 WG2035185 Pyrene ND 0.00100 1 04/05/2023 04:56 WG2035185 1,2,4-Trichlorobenzene ND 0.0100 1 04/05/2023 04:56 WG2035185 4-Chloro-3-methylphenol ND 0.0100 1 04/05/2023 04:56 WG2035185 2-Chlorophenol ND 0.0100 1 04/05/2023 04:56 WG2035185 2,4-Dichlorophenol ND 0.0100 1 04/05/2023 04:56 WG2035185 2,4-Dimethylphenol ND 0.0100 1 04/05/2023 04:56 WG2035185 4,6-Dinitro-2-methylphenol ND 0.0100 1 04/05/2023 04:56 WG2035185 2,4-Dinitrophenol ND 0.0100 1 04/05/2023 04:56 WG2035185 2-Nitrophenol ND 0.0100 1 04/05/2023 04:56 WG2035185 4-Nitrophenol ND 0.0100 1 04/05/2023 04:56 WG2035185 Pentachlorophenol ND 0.0100 1 04/05/2023 04:56 WG2035185 Phenol ND 0.0100 1 04/05/2023 04:56 WG2035185 2,4,6-Trichlorophenol ND 0.0100 1 04/05/2023 04:56 WG2035185 (S) 2-Fluorophenol 15.7 10.0-120 04/05/2023 04:56 WG2035185 (S) Phenol-d5 13.5 10.0-120 04/05/2023 04:56 WG2035185 (S) Nitrobenzene-d5 40.7 10.0-127 04/05/2023 04:56 WG2035185 (S) 2-Fluorobiphenyl 35.4 10.0-130 04/05/2023 04:56 WG2035185 (S) 2,4,6-Tribromophenol 23.1 10.0-155 04/05/2023 04:56 WG2035185 (S) p-Terphenyl-d14 36.4 10.0-128 04/05/2023 04:56 WG2035185 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.149 E 0.000400 1 04/05/2023 19:33 WG2034588 (S) Nitrobenzene-d5 37.0 10.0-120 04/05/2023 19:33 WG2034588 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 25 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 25 of 82 SAMPLE RESULTS - 08 L1600021 GMW-1 Collected date/time: 03/29/23 15:55 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/05/2023 20:39 WG2035622 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 04/06/2023 13:17 WG2035944 Barium,Dissolved 0.158 0.00500 1 04/06/2023 13:17 WG2035944 Cadmium,Dissolved ND 0.00200 1 04/06/2023 13:17 WG2035944 Chromium,Dissolved ND 0.0100 1 04/06/2023 13:17 WG2035944 Iron,Dissolved ND 0.100 1 04/06/2023 13:17 WG2035944 Lead,Dissolved ND 0.00600 1 04/06/2023 13:17 WG2035944 Manganese,Dissolved ND 0.0100 1 04/06/2023 13:17 WG2035944 Selenium,Dissolved 0.0156 0.0100 1 04/06/2023 13:17 WG2035944 Silver,Dissolved ND 0.00500 1 04/06/2023 13:17 WG2035944 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 04/04/2023 19:02 WG2035565 Acrolein ND 0.0500 1 04/04/2023 19:02 WG2035565 Acrylonitrile ND 0.0100 1 04/04/2023 19:02 WG2035565 Benzene ND 0.00100 1 04/04/2023 19:02 WG2035565 Bromobenzene ND 0.00100 1 04/04/2023 19:02 WG2035565 Bromodichloromethane ND 0.00100 1 04/04/2023 19:02 WG2035565 Bromoform ND 0.00100 1 04/04/2023 19:02 WG2035565 Bromomethane ND 0.00500 1 04/04/2023 19:02 WG2035565 n-Butylbenzene ND 0.00100 1 04/04/2023 19:02 WG2035565 sec-Butylbenzene ND 0.00100 1 04/04/2023 19:02 WG2035565 tert-Butylbenzene ND 0.00100 1 04/04/2023 19:02 WG2035565 Carbon tetrachloride ND 0.00100 1 04/04/2023 19:02 WG2035565 Chlorobenzene ND 0.00100 1 04/04/2023 19:02 WG2035565 Chlorodibromomethane ND 0.00100 1 04/04/2023 19:02 WG2035565 Chloroethane ND 0.00500 1 04/04/2023 19:02 WG2035565 Chloroform ND 0.00500 1 04/04/2023 19:02 WG2035565 Chloromethane ND 0.00250 1 04/04/2023 19:02 WG2035565 2-Chlorotoluene ND 0.00100 1 04/04/2023 19:02 WG2035565 4-Chlorotoluene ND 0.00100 1 04/04/2023 19:02 WG2035565 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/04/2023 19:02 WG2035565 1,2-Dibromoethane ND 0.00100 1 04/04/2023 19:02 WG2035565 Dibromomethane ND 0.00100 1 04/04/2023 19:02 WG2035565 1,2-Dichlorobenzene ND 0.00100 1 04/04/2023 19:02 WG2035565 1,3-Dichlorobenzene ND 0.00100 1 04/04/2023 19:02 WG2035565 1,4-Dichlorobenzene ND 0.00100 1 04/04/2023 19:02 WG2035565 Dichlorodifluoromethane ND 0.00500 1 04/04/2023 19:02 WG2035565 1,1-Dichloroethane ND 0.00100 1 04/04/2023 19:02 WG2035565 1,2-Dichloroethane ND 0.00100 1 04/04/2023 19:02 WG2035565 1,1-Dichloroethene ND 0.00100 1 04/04/2023 19:02 WG2035565 cis-1,2-Dichloroethene ND 0.00100 1 04/04/2023 19:02 WG2035565 trans-1,2-Dichloroethene ND 0.00100 1 04/04/2023 19:02 WG2035565 1,2-Dichloropropane ND 0.00100 1 04/04/2023 19:02 WG2035565 1,1-Dichloropropene ND 0.00100 1 04/04/2023 19:02 WG2035565 1,3-Dichloropropane ND 0.00100 1 04/04/2023 19:02 WG2035565 cis-1,3-Dichloropropene ND 0.00100 1 04/04/2023 19:02 WG2035565 trans-1,3-Dichloropropene ND 0.00100 1 04/04/2023 19:02 WG2035565 2,2-Dichloropropane ND 0.00100 1 04/04/2023 19:02 WG2035565 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 26 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 26 of 82 SAMPLE RESULTS - 08 L1600021 GMW-1 Collected date/time: 03/29/23 15:55 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/04/2023 19:02 WG2035565 Ethylbenzene ND 0.00100 1 04/04/2023 19:02 WG2035565 Hexachloro-1,3-butadiene ND J3 0.00100 1 04/04/2023 19:02 WG2035565 Isopropylbenzene ND 0.00100 1 04/04/2023 19:02 WG2035565 p-Isopropyltoluene ND 0.00100 1 04/04/2023 19:02 WG2035565 2-Butanone (MEK)ND 0.0100 1 04/04/2023 19:02 WG2035565 Methylene Chloride ND 0.00500 1 04/04/2023 19:02 WG2035565 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/04/2023 19:02 WG2035565 Methyl tert-butyl ether ND 0.00100 1 04/04/2023 19:02 WG2035565 Naphthalene ND 0.00500 1 04/04/2023 19:02 WG2035565 n-Propylbenzene ND 0.00100 1 04/04/2023 19:02 WG2035565 Styrene ND 0.00100 1 04/04/2023 19:02 WG2035565 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/04/2023 19:02 WG2035565 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/04/2023 19:02 WG2035565 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/04/2023 19:02 WG2035565 Tetrachloroethene ND 0.00100 1 04/04/2023 19:02 WG2035565 Toluene ND 0.00100 1 04/04/2023 19:02 WG2035565 1,2,3-Trichlorobenzene ND 0.00100 1 04/04/2023 19:02 WG2035565 1,2,4-Trichlorobenzene ND 0.00100 1 04/04/2023 19:02 WG2035565 1,1,1-Trichloroethane ND 0.00100 1 04/04/2023 19:02 WG2035565 1,1,2-Trichloroethane ND 0.00100 1 04/04/2023 19:02 WG2035565 Trichloroethene ND 0.00100 1 04/04/2023 19:02 WG2035565 Trichlorofluoromethane ND 0.00500 1 04/04/2023 19:02 WG2035565 1,2,3-Trichloropropane ND 0.00250 1 04/04/2023 19:02 WG2035565 1,2,4-Trimethylbenzene ND 0.00100 1 04/04/2023 19:02 WG2035565 1,2,3-Trimethylbenzene ND 0.00100 1 04/04/2023 19:02 WG2035565 1,3,5-Trimethylbenzene ND 0.00100 1 04/04/2023 19:02 WG2035565 Vinyl chloride ND 0.00100 1 04/04/2023 19:02 WG2035565 Xylenes, Total ND 0.00300 1 04/04/2023 19:02 WG2035565 (S) Toluene-d8 108 80.0-120 04/04/2023 19:02 WG2035565 (S) 4-Bromofluorobenzene 112 77.0-126 04/04/2023 19:02 WG2035565 (S) 1,2-Dichloroethane-d4 96.9 70.0-130 04/04/2023 19:02 WG2035565 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane ND 0.000400 1 04/05/2023 19:52 WG2034588 (S) Nitrobenzene-d5 43.5 10.0-120 04/05/2023 19:52 WG2034588 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 27 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 27 of 82 SAMPLE RESULTS - 09 L1600021 MW-13D Collected date/time: 03/29/23 08:40 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/05/2023 20:41 WG2035622 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.205 0.0100 1 04/06/2023 13:20 WG2035944 Barium,Dissolved 0.138 0.00500 1 04/06/2023 13:20 WG2035944 Cadmium,Dissolved ND 0.00200 1 04/06/2023 13:20 WG2035944 Chromium,Dissolved ND 0.0100 1 04/06/2023 13:20 WG2035944 Iron,Dissolved ND 0.100 1 04/06/2023 13:20 WG2035944 Lead,Dissolved ND 0.00600 1 04/06/2023 13:20 WG2035944 Manganese,Dissolved ND 0.0100 1 04/06/2023 13:20 WG2035944 Selenium,Dissolved ND 0.0100 1 04/06/2023 13:20 WG2035944 Silver,Dissolved ND 0.00500 1 04/06/2023 13:20 WG2035944 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 04/04/2023 19:24 WG2035565 Acrolein ND 0.0500 1 04/04/2023 19:24 WG2035565 Acrylonitrile ND 0.0100 1 04/04/2023 19:24 WG2035565 Benzene ND 0.00100 1 04/04/2023 19:24 WG2035565 Bromobenzene ND 0.00100 1 04/04/2023 19:24 WG2035565 Bromodichloromethane ND 0.00100 1 04/04/2023 19:24 WG2035565 Bromoform ND 0.00100 1 04/04/2023 19:24 WG2035565 Bromomethane ND 0.00500 1 04/04/2023 19:24 WG2035565 n-Butylbenzene ND 0.00100 1 04/04/2023 19:24 WG2035565 sec-Butylbenzene ND 0.00100 1 04/04/2023 19:24 WG2035565 tert-Butylbenzene ND 0.00100 1 04/04/2023 19:24 WG2035565 Carbon tetrachloride ND 0.00100 1 04/04/2023 19:24 WG2035565 Chlorobenzene ND 0.00100 1 04/04/2023 19:24 WG2035565 Chlorodibromomethane ND 0.00100 1 04/04/2023 19:24 WG2035565 Chloroethane ND 0.00500 1 04/04/2023 19:24 WG2035565 Chloroform ND 0.00500 1 04/04/2023 19:24 WG2035565 Chloromethane ND 0.00250 1 04/04/2023 19:24 WG2035565 2-Chlorotoluene ND 0.00100 1 04/04/2023 19:24 WG2035565 4-Chlorotoluene ND 0.00100 1 04/04/2023 19:24 WG2035565 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/04/2023 19:24 WG2035565 1,2-Dibromoethane ND 0.00100 1 04/04/2023 19:24 WG2035565 Dibromomethane ND 0.00100 1 04/04/2023 19:24 WG2035565 1,2-Dichlorobenzene ND 0.00100 1 04/04/2023 19:24 WG2035565 1,3-Dichlorobenzene ND 0.00100 1 04/04/2023 19:24 WG2035565 1,4-Dichlorobenzene ND 0.00100 1 04/04/2023 19:24 WG2035565 Dichlorodifluoromethane ND 0.00500 1 04/04/2023 19:24 WG2035565 1,1-Dichloroethane 0.00103 0.00100 1 04/04/2023 19:24 WG2035565 1,2-Dichloroethane ND 0.00100 1 04/04/2023 19:24 WG2035565 1,1-Dichloroethene 0.0206 0.00100 1 04/04/2023 19:24 WG2035565 cis-1,2-Dichloroethene ND 0.00100 1 04/04/2023 19:24 WG2035565 trans-1,2-Dichloroethene ND 0.00100 1 04/04/2023 19:24 WG2035565 1,2-Dichloropropane ND 0.00100 1 04/04/2023 19:24 WG2035565 1,1-Dichloropropene ND 0.00100 1 04/04/2023 19:24 WG2035565 1,3-Dichloropropane ND 0.00100 1 04/04/2023 19:24 WG2035565 cis-1,3-Dichloropropene ND 0.00100 1 04/04/2023 19:24 WG2035565 trans-1,3-Dichloropropene ND 0.00100 1 04/04/2023 19:24 WG2035565 2,2-Dichloropropane ND 0.00100 1 04/04/2023 19:24 WG2035565 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 28 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 28 of 82 SAMPLE RESULTS - 09 L1600021 MW-13D Collected date/time: 03/29/23 08:40 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/04/2023 19:24 WG2035565 Ethylbenzene ND 0.00100 1 04/04/2023 19:24 WG2035565 Hexachloro-1,3-butadiene ND J3 0.00100 1 04/04/2023 19:24 WG2035565 Isopropylbenzene ND 0.00100 1 04/04/2023 19:24 WG2035565 p-Isopropyltoluene ND 0.00100 1 04/04/2023 19:24 WG2035565 2-Butanone (MEK)ND 0.0100 1 04/04/2023 19:24 WG2035565 Methylene Chloride ND 0.00500 1 04/04/2023 19:24 WG2035565 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/04/2023 19:24 WG2035565 Methyl tert-butyl ether ND 0.00100 1 04/04/2023 19:24 WG2035565 Naphthalene ND 0.00500 1 04/04/2023 19:24 WG2035565 n-Propylbenzene ND 0.00100 1 04/04/2023 19:24 WG2035565 Styrene ND 0.00100 1 04/04/2023 19:24 WG2035565 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/04/2023 19:24 WG2035565 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/04/2023 19:24 WG2035565 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/04/2023 19:24 WG2035565 Tetrachloroethene ND 0.00100 1 04/04/2023 19:24 WG2035565 Toluene ND 0.00100 1 04/04/2023 19:24 WG2035565 1,2,3-Trichlorobenzene ND 0.00100 1 04/04/2023 19:24 WG2035565 1,2,4-Trichlorobenzene ND 0.00100 1 04/04/2023 19:24 WG2035565 1,1,1-Trichloroethane ND 0.00100 1 04/04/2023 19:24 WG2035565 1,1,2-Trichloroethane ND 0.00100 1 04/04/2023 19:24 WG2035565 Trichloroethene ND 0.00100 1 04/04/2023 19:24 WG2035565 Trichlorofluoromethane ND 0.00500 1 04/04/2023 19:24 WG2035565 1,2,3-Trichloropropane ND 0.00250 1 04/04/2023 19:24 WG2035565 1,2,4-Trimethylbenzene ND 0.00100 1 04/04/2023 19:24 WG2035565 1,2,3-Trimethylbenzene ND 0.00100 1 04/04/2023 19:24 WG2035565 1,3,5-Trimethylbenzene ND 0.00100 1 04/04/2023 19:24 WG2035565 Vinyl chloride 0.00156 0.00100 1 04/04/2023 19:24 WG2035565 Xylenes, Total ND 0.00300 1 04/04/2023 19:24 WG2035565 (S) Toluene-d8 105 80.0-120 04/04/2023 19:24 WG2035565 (S) 4-Bromofluorobenzene 105 77.0-126 04/04/2023 19:24 WG2035565 (S) 1,2-Dichloroethane-d4 93.1 70.0-130 04/04/2023 19:24 WG2035565 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 04/05/2023 06:00 WG2035185 Acenaphthylene ND 0.00100 1 04/05/2023 06:00 WG2035185 Anthracene ND 0.00100 1 04/05/2023 06:00 WG2035185 Benzidine ND J4 0.0100 1 04/05/2023 06:00 WG2035185 Benzo(a)anthracene ND 0.00100 1 04/05/2023 06:00 WG2035185 Benzo(b)fluoranthene ND 0.00100 1 04/05/2023 06:00 WG2035185 Benzo(k)fluoranthene ND 0.00100 1 04/05/2023 06:00 WG2035185 Benzo(g,h,i)perylene ND 0.00100 1 04/05/2023 06:00 WG2035185 Benzo(a)pyrene ND 0.00100 1 04/05/2023 06:00 WG2035185 Bis(2-chlorethoxy)methane ND 0.0100 1 04/05/2023 06:00 WG2035185 Bis(2-chloroethyl)ether ND 0.0100 1 04/05/2023 06:00 WG2035185 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 04/05/2023 06:00 WG2035185 4-Bromophenyl-phenylether ND 0.0100 1 04/05/2023 06:00 WG2035185 2-Chloronaphthalene ND 0.00100 1 04/05/2023 06:00 WG2035185 4-Chlorophenyl-phenylether ND 0.0100 1 04/05/2023 06:00 WG2035185 Chrysene ND 0.00100 1 04/05/2023 06:00 WG2035185 Dibenz(a,h)anthracene ND 0.00100 1 04/05/2023 06:00 WG2035185 1,2-Dichlorobenzene ND 0.0100 1 04/05/2023 06:00 WG2035185 1,3-Dichlorobenzene ND 0.0100 1 04/05/2023 06:00 WG2035185 1,4-Dichlorobenzene ND 0.0100 1 04/05/2023 06:00 WG2035185 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 29 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 29 of 82 SAMPLE RESULTS - 09 L1600021 MW-13D Collected date/time: 03/29/23 08:40 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 04/05/2023 06:00 WG2035185 2,4-Dinitrotoluene ND 0.0100 1 04/05/2023 06:00 WG2035185 2,6-Dinitrotoluene ND 0.0100 1 04/05/2023 06:00 WG2035185 Fluoranthene ND 0.00100 1 04/05/2023 06:00 WG2035185 Fluorene ND 0.00100 1 04/05/2023 06:00 WG2035185 Hexachlorobenzene ND 0.00100 1 04/05/2023 06:00 WG2035185 Hexachloro-1,3-butadiene ND 0.0100 1 04/05/2023 06:00 WG2035185 Hexachlorocyclopentadiene ND 0.0100 1 04/05/2023 06:00 WG2035185 Hexachloroethane ND 0.0100 1 04/05/2023 06:00 WG2035185 Indeno(1,2,3-cd)pyrene ND 0.00100 1 04/05/2023 06:00 WG2035185 Isophorone ND 0.0100 1 04/05/2023 06:00 WG2035185 Naphthalene ND 0.00100 1 04/05/2023 06:00 WG2035185 Nitrobenzene ND 0.0100 1 04/05/2023 06:00 WG2035185 n-Nitrosodimethylamine ND 0.0100 1 04/05/2023 06:00 WG2035185 n-Nitrosodiphenylamine ND 0.0100 1 04/05/2023 06:00 WG2035185 n-Nitrosodi-n-propylamine ND 0.0100 1 04/05/2023 06:00 WG2035185 Phenanthrene ND 0.00100 1 04/05/2023 06:00 WG2035185 Benzylbutyl phthalate ND 0.00300 1 04/05/2023 06:00 WG2035185 Bis(2-ethylhexyl)phthalate ND 0.00300 1 04/05/2023 06:00 WG2035185 Di-n-butyl phthalate ND 0.00300 1 04/05/2023 06:00 WG2035185 Diethyl phthalate ND 0.00300 1 04/05/2023 06:00 WG2035185 Dimethyl phthalate ND 0.00300 1 04/05/2023 06:00 WG2035185 Di-n-octyl phthalate ND 0.00300 1 04/05/2023 06:00 WG2035185 Pyrene ND 0.00100 1 04/05/2023 06:00 WG2035185 1,2,4-Trichlorobenzene ND 0.0100 1 04/05/2023 06:00 WG2035185 4-Chloro-3-methylphenol ND 0.0100 1 04/05/2023 06:00 WG2035185 2-Chlorophenol ND 0.0100 1 04/05/2023 06:00 WG2035185 2,4-Dichlorophenol ND 0.0100 1 04/05/2023 06:00 WG2035185 2,4-Dimethylphenol ND 0.0100 1 04/05/2023 06:00 WG2035185 4,6-Dinitro-2-methylphenol ND 0.0100 1 04/05/2023 06:00 WG2035185 2,4-Dinitrophenol ND 0.0100 1 04/05/2023 06:00 WG2035185 2-Nitrophenol ND 0.0100 1 04/05/2023 06:00 WG2035185 4-Nitrophenol ND 0.0100 1 04/05/2023 06:00 WG2035185 Pentachlorophenol ND 0.0100 1 04/05/2023 06:00 WG2035185 Phenol ND 0.0100 1 04/05/2023 06:00 WG2035185 2,4,6-Trichlorophenol ND 0.0100 1 04/05/2023 06:00 WG2035185 (S) 2-Fluorophenol 21.3 10.0-120 04/05/2023 06:00 WG2035185 (S) Phenol-d5 16.6 10.0-120 04/05/2023 06:00 WG2035185 (S) Nitrobenzene-d5 49.7 10.0-127 04/05/2023 06:00 WG2035185 (S) 2-Fluorobiphenyl 46.5 10.0-130 04/05/2023 06:00 WG2035185 (S) 2,4,6-Tribromophenol 35.4 10.0-155 04/05/2023 06:00 WG2035185 (S) p-Terphenyl-d14 57.1 10.0-128 04/05/2023 06:00 WG2035185 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00148 B 0.000400 1 04/05/2023 20:11 WG2034588 (S) Nitrobenzene-d5 44.3 10.0-120 04/05/2023 20:11 WG2034588 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 30 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 30 of 82 SAMPLE RESULTS - 10 L1600021 MW-13S Collected date/time: 03/29/23 09:40 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/05/2023 20:43 WG2035622 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 04/06/2023 13:23 WG2035944 Barium,Dissolved 0.0230 0.00500 1 04/06/2023 13:23 WG2035944 Cadmium,Dissolved ND 0.00200 1 04/06/2023 13:23 WG2035944 Chromium,Dissolved ND 0.0100 1 04/06/2023 13:23 WG2035944 Iron,Dissolved ND 0.100 1 04/06/2023 13:23 WG2035944 Lead,Dissolved ND 0.00600 1 04/06/2023 13:23 WG2035944 Manganese,Dissolved 0.650 0.0100 1 04/06/2023 13:23 WG2035944 Selenium,Dissolved ND 0.0100 1 04/06/2023 13:23 WG2035944 Silver,Dissolved ND 0.00500 1 04/06/2023 13:23 WG2035944 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 04/04/2023 19:46 WG2035565 Acrolein ND 0.0500 1 04/04/2023 19:46 WG2035565 Acrylonitrile ND 0.0100 1 04/04/2023 19:46 WG2035565 Benzene ND 0.00100 1 04/04/2023 19:46 WG2035565 Bromobenzene ND 0.00100 1 04/04/2023 19:46 WG2035565 Bromodichloromethane ND 0.00100 1 04/04/2023 19:46 WG2035565 Bromoform ND 0.00100 1 04/04/2023 19:46 WG2035565 Bromomethane ND 0.00500 1 04/04/2023 19:46 WG2035565 n-Butylbenzene ND 0.00100 1 04/04/2023 19:46 WG2035565 sec-Butylbenzene ND 0.00100 1 04/04/2023 19:46 WG2035565 tert-Butylbenzene ND 0.00100 1 04/04/2023 19:46 WG2035565 Carbon tetrachloride ND 0.00100 1 04/04/2023 19:46 WG2035565 Chlorobenzene ND 0.00100 1 04/04/2023 19:46 WG2035565 Chlorodibromomethane ND 0.00100 1 04/04/2023 19:46 WG2035565 Chloroethane ND 0.00500 1 04/04/2023 19:46 WG2035565 Chloroform 0.00538 0.00500 1 04/04/2023 19:46 WG2035565 Chloromethane ND 0.00250 1 04/04/2023 19:46 WG2035565 2-Chlorotoluene ND 0.00100 1 04/04/2023 19:46 WG2035565 4-Chlorotoluene ND 0.00100 1 04/04/2023 19:46 WG2035565 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/04/2023 19:46 WG2035565 1,2-Dibromoethane ND 0.00100 1 04/04/2023 19:46 WG2035565 Dibromomethane ND 0.00100 1 04/04/2023 19:46 WG2035565 1,2-Dichlorobenzene ND 0.00100 1 04/04/2023 19:46 WG2035565 1,3-Dichlorobenzene ND 0.00100 1 04/04/2023 19:46 WG2035565 1,4-Dichlorobenzene ND 0.00100 1 04/04/2023 19:46 WG2035565 Dichlorodifluoromethane ND 0.00500 1 04/04/2023 19:46 WG2035565 1,1-Dichloroethane 0.188 0.00100 1 04/04/2023 19:46 WG2035565 1,2-Dichloroethane 0.00855 0.00100 1 04/04/2023 19:46 WG2035565 1,1-Dichloroethene 6.82 0.200 200 04/06/2023 02:59 WG2036381 cis-1,2-Dichloroethene ND 0.00100 1 04/04/2023 19:46 WG2035565 trans-1,2-Dichloroethene ND 0.00100 1 04/04/2023 19:46 WG2035565 1,2-Dichloropropane ND 0.00100 1 04/04/2023 19:46 WG2035565 1,1-Dichloropropene ND 0.00100 1 04/04/2023 19:46 WG2035565 1,3-Dichloropropane ND 0.00100 1 04/04/2023 19:46 WG2035565 cis-1,3-Dichloropropene ND 0.00100 1 04/04/2023 19:46 WG2035565 trans-1,3-Dichloropropene ND 0.00100 1 04/04/2023 19:46 WG2035565 2,2-Dichloropropane ND 0.00100 1 04/04/2023 19:46 WG2035565 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 31 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 31 of 82 SAMPLE RESULTS - 10 L1600021 MW-13S Collected date/time: 03/29/23 09:40 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/04/2023 19:46 WG2035565 Ethylbenzene ND 0.00100 1 04/04/2023 19:46 WG2035565 Hexachloro-1,3-butadiene ND J3 0.00100 1 04/04/2023 19:46 WG2035565 Isopropylbenzene ND 0.00100 1 04/04/2023 19:46 WG2035565 p-Isopropyltoluene ND 0.00100 1 04/04/2023 19:46 WG2035565 2-Butanone (MEK)ND 0.0100 1 04/04/2023 19:46 WG2035565 Methylene Chloride ND 0.00500 1 04/04/2023 19:46 WG2035565 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/04/2023 19:46 WG2035565 Methyl tert-butyl ether ND 0.00100 1 04/04/2023 19:46 WG2035565 Naphthalene ND 0.00500 1 04/04/2023 19:46 WG2035565 n-Propylbenzene ND 0.00100 1 04/04/2023 19:46 WG2035565 Styrene ND 0.00100 1 04/04/2023 19:46 WG2035565 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/04/2023 19:46 WG2035565 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/04/2023 19:46 WG2035565 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/04/2023 19:46 WG2035565 Tetrachloroethene ND 0.00100 1 04/04/2023 19:46 WG2035565 Toluene ND 0.00100 1 04/04/2023 19:46 WG2035565 1,2,3-Trichlorobenzene ND 0.00100 1 04/04/2023 19:46 WG2035565 1,2,4-Trichlorobenzene ND 0.00100 1 04/04/2023 19:46 WG2035565 1,1,1-Trichloroethane 0.144 0.00100 1 04/04/2023 19:46 WG2035565 1,1,2-Trichloroethane 0.00247 0.00100 1 04/04/2023 19:46 WG2035565 Trichloroethene 0.00789 0.00100 1 04/04/2023 19:46 WG2035565 Trichlorofluoromethane ND 0.00500 1 04/04/2023 19:46 WG2035565 1,2,3-Trichloropropane ND 0.00250 1 04/04/2023 19:46 WG2035565 1,2,4-Trimethylbenzene ND 0.00100 1 04/04/2023 19:46 WG2035565 1,2,3-Trimethylbenzene ND 0.00100 1 04/04/2023 19:46 WG2035565 1,3,5-Trimethylbenzene ND 0.00100 1 04/04/2023 19:46 WG2035565 Vinyl chloride 0.0686 0.00100 1 04/04/2023 19:46 WG2035565 Xylenes, Total ND 0.00300 1 04/04/2023 19:46 WG2035565 (S) Toluene-d8 108 80.0-120 04/04/2023 19:46 WG2035565 (S) Toluene-d8 113 80.0-120 04/06/2023 02:59 WG2036381 (S) 4-Bromofluorobenzene 106 77.0-126 04/04/2023 19:46 WG2035565 (S) 4-Bromofluorobenzene 110 77.0-126 04/06/2023 02:59 WG2036381 (S) 1,2-Dichloroethane-d4 101 70.0-130 04/04/2023 19:46 WG2035565 (S) 1,2-Dichloroethane-d4 116 70.0-130 04/06/2023 02:59 WG2036381 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 04/05/2023 22:39 WG2035893 Acenaphthylene ND 0.00100 1 04/05/2023 22:39 WG2035893 Anthracene ND 0.00100 1 04/05/2023 22:39 WG2035893 Benzidine ND J4 0.0100 1 04/05/2023 22:39 WG2035893 Benzo(a)anthracene ND 0.00100 1 04/05/2023 22:39 WG2035893 Benzo(b)fluoranthene ND 0.00100 1 04/05/2023 22:39 WG2035893 Benzo(k)fluoranthene ND 0.00100 1 04/05/2023 22:39 WG2035893 Benzo(g,h,i)perylene ND 0.00100 1 04/05/2023 22:39 WG2035893 Benzo(a)pyrene ND 0.00100 1 04/05/2023 22:39 WG2035893 Bis(2-chlorethoxy)methane ND 0.0100 1 04/05/2023 22:39 WG2035893 Bis(2-chloroethyl)ether ND 0.0100 1 04/05/2023 22:39 WG2035893 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 04/05/2023 22:39 WG2035893 4-Bromophenyl-phenylether ND 0.0100 1 04/05/2023 22:39 WG2035893 2-Chloronaphthalene ND 0.00100 1 04/05/2023 22:39 WG2035893 4-Chlorophenyl-phenylether ND 0.0100 1 04/05/2023 22:39 WG2035893 Chrysene ND 0.00100 1 04/05/2023 22:39 WG2035893 Dibenz(a,h)anthracene ND 0.00100 1 04/05/2023 22:39 WG2035893 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 32 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 32 of 82 SAMPLE RESULTS - 10 L1600021 MW-13S Collected date/time: 03/29/23 09:40 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,2-Dichlorobenzene ND 0.0100 1 04/05/2023 22:39 WG2035893 1,3-Dichlorobenzene ND 0.0100 1 04/05/2023 22:39 WG2035893 1,4-Dichlorobenzene ND 0.0100 1 04/05/2023 22:39 WG2035893 3,3-Dichlorobenzidine ND J4 0.0100 1 04/05/2023 22:39 WG2035893 2,4-Dinitrotoluene ND 0.0100 1 04/05/2023 22:39 WG2035893 2,6-Dinitrotoluene ND 0.0100 1 04/05/2023 22:39 WG2035893 Fluoranthene ND 0.00100 1 04/05/2023 22:39 WG2035893 Fluorene ND 0.00100 1 04/05/2023 22:39 WG2035893 Hexachlorobenzene ND 0.00100 1 04/05/2023 22:39 WG2035893 Hexachloro-1,3-butadiene ND 0.0100 1 04/05/2023 22:39 WG2035893 Hexachlorocyclopentadiene ND 0.0100 1 04/05/2023 22:39 WG2035893 Hexachloroethane ND 0.0100 1 04/05/2023 22:39 WG2035893 Indeno(1,2,3-cd)pyrene ND 0.00100 1 04/05/2023 22:39 WG2035893 Isophorone ND 0.0100 1 04/05/2023 22:39 WG2035893 Naphthalene ND 0.00100 1 04/05/2023 22:39 WG2035893 Nitrobenzene ND 0.0100 1 04/05/2023 22:39 WG2035893 n-Nitrosodimethylamine ND 0.0100 1 04/05/2023 22:39 WG2035893 n-Nitrosodiphenylamine ND 0.0100 1 04/05/2023 22:39 WG2035893 n-Nitrosodi-n-propylamine ND 0.0100 1 04/05/2023 22:39 WG2035893 Phenanthrene ND 0.00100 1 04/05/2023 22:39 WG2035893 Benzylbutyl phthalate ND 0.00300 1 04/05/2023 22:39 WG2035893 Bis(2-ethylhexyl)phthalate ND 0.00300 1 04/05/2023 22:39 WG2035893 Di-n-butyl phthalate ND 0.00300 1 04/05/2023 22:39 WG2035893 Diethyl phthalate ND 0.00300 1 04/05/2023 22:39 WG2035893 Dimethyl phthalate ND 0.00300 1 04/05/2023 22:39 WG2035893 Di-n-octyl phthalate ND 0.00300 1 04/05/2023 22:39 WG2035893 Pyrene ND 0.00100 1 04/05/2023 22:39 WG2035893 1,2,4-Trichlorobenzene ND 0.0100 1 04/05/2023 22:39 WG2035893 4-Chloro-3-methylphenol ND 0.0100 1 04/05/2023 22:39 WG2035893 2-Chlorophenol ND 0.0100 1 04/05/2023 22:39 WG2035893 2,4-Dichlorophenol ND 0.0100 1 04/05/2023 22:39 WG2035893 2,4-Dimethylphenol ND 0.0100 1 04/05/2023 22:39 WG2035893 4,6-Dinitro-2-methylphenol ND 0.0100 1 04/05/2023 22:39 WG2035893 2,4-Dinitrophenol ND 0.0100 1 04/05/2023 22:39 WG2035893 2-Nitrophenol ND 0.0100 1 04/05/2023 22:39 WG2035893 4-Nitrophenol ND 0.0100 1 04/05/2023 22:39 WG2035893 Pentachlorophenol ND 0.0100 1 04/05/2023 22:39 WG2035893 Phenol ND 0.0100 1 04/05/2023 22:39 WG2035893 2,4,6-Trichlorophenol ND 0.0100 1 04/05/2023 22:39 WG2035893 (S) 2-Fluorophenol 16.5 10.0-120 04/05/2023 22:39 WG2035893 (S) Phenol-d5 16.0 10.0-120 04/05/2023 22:39 WG2035893 (S) Nitrobenzene-d5 48.1 10.0-127 04/05/2023 22:39 WG2035893 (S) 2-Fluorobiphenyl 44.2 10.0-130 04/05/2023 22:39 WG2035893 (S) 2,4,6-Tribromophenol 35.6 10.0-155 04/05/2023 22:39 WG2035893 (S) p-Terphenyl-d14 52.0 10.0-128 04/05/2023 22:39 WG2035893 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.871 E 0.000400 1 04/05/2023 20:30 WG2034588 (S) Nitrobenzene-d5 44.0 10.0-120 04/05/2023 20:30 WG2034588 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 33 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 33 of 82 SAMPLE RESULTS - 11 L1600021 MW-22 Collected date/time: 03/29/23 11:15 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/05/2023 20:45 WG2035622 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0488 0.0100 1 04/06/2023 13:26 WG2035944 Barium,Dissolved 0.0739 0.00500 1 04/06/2023 13:26 WG2035944 Cadmium,Dissolved ND 0.00200 1 04/06/2023 13:26 WG2035944 Chromium,Dissolved ND 0.0100 1 04/06/2023 13:26 WG2035944 Iron,Dissolved ND 0.100 1 04/06/2023 13:26 WG2035944 Lead,Dissolved ND 0.00600 1 04/06/2023 13:26 WG2035944 Manganese,Dissolved 0.0639 0.0100 1 04/06/2023 13:26 WG2035944 Selenium,Dissolved ND 0.0100 1 04/06/2023 13:26 WG2035944 Silver,Dissolved ND 0.00500 1 04/06/2023 13:26 WG2035944 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 04/04/2023 20:09 WG2035565 Acrolein ND 0.0500 1 04/04/2023 20:09 WG2035565 Acrylonitrile ND 0.0100 1 04/04/2023 20:09 WG2035565 Benzene ND 0.00100 1 04/04/2023 20:09 WG2035565 Bromobenzene ND 0.00100 1 04/04/2023 20:09 WG2035565 Bromodichloromethane ND 0.00100 1 04/04/2023 20:09 WG2035565 Bromoform ND 0.00100 1 04/04/2023 20:09 WG2035565 Bromomethane ND 0.00500 1 04/04/2023 20:09 WG2035565 n-Butylbenzene ND 0.00100 1 04/04/2023 20:09 WG2035565 sec-Butylbenzene ND 0.00100 1 04/04/2023 20:09 WG2035565 tert-Butylbenzene ND 0.00100 1 04/04/2023 20:09 WG2035565 Carbon tetrachloride ND 0.00100 1 04/04/2023 20:09 WG2035565 Chlorobenzene ND 0.00100 1 04/04/2023 20:09 WG2035565 Chlorodibromomethane ND 0.00100 1 04/04/2023 20:09 WG2035565 Chloroethane ND 0.00500 1 04/04/2023 20:09 WG2035565 Chloroform ND 0.00500 1 04/04/2023 20:09 WG2035565 Chloromethane ND 0.00250 1 04/04/2023 20:09 WG2035565 2-Chlorotoluene ND 0.00100 1 04/04/2023 20:09 WG2035565 4-Chlorotoluene ND 0.00100 1 04/04/2023 20:09 WG2035565 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/04/2023 20:09 WG2035565 1,2-Dibromoethane ND 0.00100 1 04/04/2023 20:09 WG2035565 Dibromomethane ND 0.00100 1 04/04/2023 20:09 WG2035565 1,2-Dichlorobenzene ND 0.00100 1 04/04/2023 20:09 WG2035565 1,3-Dichlorobenzene ND 0.00100 1 04/04/2023 20:09 WG2035565 1,4-Dichlorobenzene ND 0.00100 1 04/04/2023 20:09 WG2035565 Dichlorodifluoromethane ND 0.00500 1 04/04/2023 20:09 WG2035565 1,1-Dichloroethane ND 0.00100 1 04/04/2023 20:09 WG2035565 1,2-Dichloroethane ND 0.00100 1 04/04/2023 20:09 WG2035565 1,1-Dichloroethene ND 0.00100 1 04/05/2023 21:59 WG2036381 cis-1,2-Dichloroethene ND 0.00100 1 04/04/2023 20:09 WG2035565 trans-1,2-Dichloroethene ND 0.00100 1 04/04/2023 20:09 WG2035565 1,2-Dichloropropane ND 0.00100 1 04/04/2023 20:09 WG2035565 1,1-Dichloropropene ND 0.00100 1 04/04/2023 20:09 WG2035565 1,3-Dichloropropane ND 0.00100 1 04/04/2023 20:09 WG2035565 cis-1,3-Dichloropropene ND 0.00100 1 04/04/2023 20:09 WG2035565 trans-1,3-Dichloropropene ND 0.00100 1 04/04/2023 20:09 WG2035565 2,2-Dichloropropane ND 0.00100 1 04/04/2023 20:09 WG2035565 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 34 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 34 of 82 SAMPLE RESULTS - 11 L1600021 MW-22 Collected date/time: 03/29/23 11:15 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/04/2023 20:09 WG2035565 Ethylbenzene ND 0.00100 1 04/04/2023 20:09 WG2035565 Hexachloro-1,3-butadiene ND J3 0.00100 1 04/04/2023 20:09 WG2035565 Isopropylbenzene ND 0.00100 1 04/04/2023 20:09 WG2035565 p-Isopropyltoluene ND 0.00100 1 04/04/2023 20:09 WG2035565 2-Butanone (MEK)ND 0.0100 1 04/04/2023 20:09 WG2035565 Methylene Chloride ND 0.00500 1 04/04/2023 20:09 WG2035565 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/04/2023 20:09 WG2035565 Methyl tert-butyl ether ND 0.00100 1 04/04/2023 20:09 WG2035565 Naphthalene ND 0.00500 1 04/04/2023 20:09 WG2035565 n-Propylbenzene ND 0.00100 1 04/04/2023 20:09 WG2035565 Styrene ND 0.00100 1 04/04/2023 20:09 WG2035565 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/04/2023 20:09 WG2035565 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/04/2023 20:09 WG2035565 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/04/2023 20:09 WG2035565 Tetrachloroethene ND 0.00100 1 04/04/2023 20:09 WG2035565 Toluene ND 0.00100 1 04/04/2023 20:09 WG2035565 1,2,3-Trichlorobenzene ND 0.00100 1 04/04/2023 20:09 WG2035565 1,2,4-Trichlorobenzene ND 0.00100 1 04/04/2023 20:09 WG2035565 1,1,1-Trichloroethane ND 0.00100 1 04/04/2023 20:09 WG2035565 1,1,2-Trichloroethane ND 0.00100 1 04/04/2023 20:09 WG2035565 Trichloroethene ND 0.00100 1 04/04/2023 20:09 WG2035565 Trichlorofluoromethane ND 0.00500 1 04/04/2023 20:09 WG2035565 1,2,3-Trichloropropane ND 0.00250 1 04/04/2023 20:09 WG2035565 1,2,4-Trimethylbenzene ND 0.00100 1 04/04/2023 20:09 WG2035565 1,2,3-Trimethylbenzene ND 0.00100 1 04/04/2023 20:09 WG2035565 1,3,5-Trimethylbenzene ND 0.00100 1 04/04/2023 20:09 WG2035565 Vinyl chloride ND 0.00100 1 04/04/2023 20:09 WG2035565 Xylenes, Total ND 0.00300 1 04/04/2023 20:09 WG2035565 (S) Toluene-d8 105 80.0-120 04/04/2023 20:09 WG2035565 (S) Toluene-d8 104 80.0-120 04/05/2023 21:59 WG2036381 (S) 4-Bromofluorobenzene 105 77.0-126 04/04/2023 20:09 WG2035565 (S) 4-Bromofluorobenzene 97.8 77.0-126 04/05/2023 21:59 WG2036381 (S) 1,2-Dichloroethane-d4 98.9 70.0-130 04/04/2023 20:09 WG2035565 (S) 1,2-Dichloroethane-d4 121 70.0-130 04/05/2023 21:59 WG2036381 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00874 0.000400 1 04/05/2023 20:50 WG2034588 (S) Nitrobenzene-d5 35.8 10.0-120 04/05/2023 20:50 WG2034588 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 35 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 35 of 82 SAMPLE RESULTS - 12 L1600021 MW-19 Collected date/time: 03/29/23 12:20 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/05/2023 20:54 WG2035622 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0425 0.0100 1 04/06/2023 13:34 WG2035944 Barium,Dissolved 0.223 0.00500 1 04/06/2023 13:34 WG2035944 Cadmium,Dissolved ND 0.00200 1 04/06/2023 13:34 WG2035944 Chromium,Dissolved ND 0.0100 1 04/06/2023 13:34 WG2035944 Iron,Dissolved ND 0.100 1 04/06/2023 13:34 WG2035944 Lead,Dissolved ND 0.00600 1 04/06/2023 13:34 WG2035944 Manganese,Dissolved 0.178 0.0100 1 04/06/2023 13:34 WG2035944 Selenium,Dissolved ND 0.0100 1 04/06/2023 13:34 WG2035944 Silver,Dissolved ND 0.00500 1 04/06/2023 13:34 WG2035944 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 04/04/2023 20:31 WG2035565 Acrolein ND 0.0500 1 04/04/2023 20:31 WG2035565 Acrylonitrile ND 0.0100 1 04/04/2023 20:31 WG2035565 Benzene ND 0.00100 1 04/04/2023 20:31 WG2035565 Bromobenzene ND 0.00100 1 04/04/2023 20:31 WG2035565 Bromodichloromethane ND 0.00100 1 04/04/2023 20:31 WG2035565 Bromoform ND 0.00100 1 04/04/2023 20:31 WG2035565 Bromomethane ND 0.00500 1 04/04/2023 20:31 WG2035565 n-Butylbenzene ND 0.00100 1 04/04/2023 20:31 WG2035565 sec-Butylbenzene ND 0.00100 1 04/04/2023 20:31 WG2035565 tert-Butylbenzene ND 0.00100 1 04/04/2023 20:31 WG2035565 Carbon tetrachloride ND 0.00100 1 04/04/2023 20:31 WG2035565 Chlorobenzene ND 0.00100 1 04/04/2023 20:31 WG2035565 Chlorodibromomethane ND 0.00100 1 04/04/2023 20:31 WG2035565 Chloroethane ND 0.00500 1 04/04/2023 20:31 WG2035565 Chloroform ND 0.00500 1 04/04/2023 20:31 WG2035565 Chloromethane ND 0.00250 1 04/04/2023 20:31 WG2035565 2-Chlorotoluene ND 0.00100 1 04/04/2023 20:31 WG2035565 4-Chlorotoluene ND 0.00100 1 04/04/2023 20:31 WG2035565 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/04/2023 20:31 WG2035565 1,2-Dibromoethane ND 0.00100 1 04/04/2023 20:31 WG2035565 Dibromomethane ND 0.00100 1 04/04/2023 20:31 WG2035565 1,2-Dichlorobenzene ND 0.00100 1 04/04/2023 20:31 WG2035565 1,3-Dichlorobenzene ND 0.00100 1 04/04/2023 20:31 WG2035565 1,4-Dichlorobenzene ND 0.00100 1 04/04/2023 20:31 WG2035565 Dichlorodifluoromethane ND 0.00500 1 04/04/2023 20:31 WG2035565 1,1-Dichloroethane ND 0.00100 1 04/04/2023 20:31 WG2035565 1,2-Dichloroethane ND 0.00100 1 04/04/2023 20:31 WG2035565 1,1-Dichloroethene 0.00123 0.00100 1 04/05/2023 22:19 WG2036381 cis-1,2-Dichloroethene ND 0.00100 1 04/04/2023 20:31 WG2035565 trans-1,2-Dichloroethene ND 0.00100 1 04/04/2023 20:31 WG2035565 1,2-Dichloropropane ND 0.00100 1 04/04/2023 20:31 WG2035565 1,1-Dichloropropene ND 0.00100 1 04/04/2023 20:31 WG2035565 1,3-Dichloropropane ND 0.00100 1 04/04/2023 20:31 WG2035565 cis-1,3-Dichloropropene ND 0.00100 1 04/04/2023 20:31 WG2035565 trans-1,3-Dichloropropene ND 0.00100 1 04/04/2023 20:31 WG2035565 2,2-Dichloropropane ND 0.00100 1 04/04/2023 20:31 WG2035565 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 36 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 36 of 82 SAMPLE RESULTS - 12 L1600021 MW-19 Collected date/time: 03/29/23 12:20 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/04/2023 20:31 WG2035565 Ethylbenzene ND 0.00100 1 04/04/2023 20:31 WG2035565 Hexachloro-1,3-butadiene ND J3 0.00100 1 04/04/2023 20:31 WG2035565 Isopropylbenzene ND 0.00100 1 04/04/2023 20:31 WG2035565 p-Isopropyltoluene ND 0.00100 1 04/04/2023 20:31 WG2035565 2-Butanone (MEK)ND 0.0100 1 04/04/2023 20:31 WG2035565 Methylene Chloride ND 0.00500 1 04/04/2023 20:31 WG2035565 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/04/2023 20:31 WG2035565 Methyl tert-butyl ether ND 0.00100 1 04/04/2023 20:31 WG2035565 Naphthalene ND 0.00500 1 04/04/2023 20:31 WG2035565 n-Propylbenzene ND 0.00100 1 04/04/2023 20:31 WG2035565 Styrene ND 0.00100 1 04/04/2023 20:31 WG2035565 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/04/2023 20:31 WG2035565 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/04/2023 20:31 WG2035565 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/04/2023 20:31 WG2035565 Tetrachloroethene ND 0.00100 1 04/04/2023 20:31 WG2035565 Toluene ND 0.00100 1 04/04/2023 20:31 WG2035565 1,2,3-Trichlorobenzene ND 0.00100 1 04/04/2023 20:31 WG2035565 1,2,4-Trichlorobenzene ND 0.00100 1 04/04/2023 20:31 WG2035565 1,1,1-Trichloroethane ND 0.00100 1 04/04/2023 20:31 WG2035565 1,1,2-Trichloroethane ND 0.00100 1 04/04/2023 20:31 WG2035565 Trichloroethene ND 0.00100 1 04/04/2023 20:31 WG2035565 Trichlorofluoromethane ND 0.00500 1 04/04/2023 20:31 WG2035565 1,2,3-Trichloropropane ND 0.00250 1 04/04/2023 20:31 WG2035565 1,2,4-Trimethylbenzene ND 0.00100 1 04/04/2023 20:31 WG2035565 1,2,3-Trimethylbenzene ND 0.00100 1 04/04/2023 20:31 WG2035565 1,3,5-Trimethylbenzene ND 0.00100 1 04/04/2023 20:31 WG2035565 Vinyl chloride ND 0.00100 1 04/04/2023 20:31 WG2035565 Xylenes, Total ND 0.00300 1 04/04/2023 20:31 WG2035565 (S) Toluene-d8 106 80.0-120 04/04/2023 20:31 WG2035565 (S) Toluene-d8 108 80.0-120 04/05/2023 22:19 WG2036381 (S) 4-Bromofluorobenzene 106 77.0-126 04/04/2023 20:31 WG2035565 (S) 4-Bromofluorobenzene 102 77.0-126 04/05/2023 22:19 WG2036381 (S) 1,2-Dichloroethane-d4 92.3 70.0-130 04/04/2023 20:31 WG2035565 (S) 1,2-Dichloroethane-d4 124 70.0-130 04/05/2023 22:19 WG2036381 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00159 B 0.000400 1 04/05/2023 21:09 WG2034588 (S) Nitrobenzene-d5 40.5 10.0-120 04/05/2023 21:09 WG2034588 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 37 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 37 of 82 SAMPLE RESULTS - 13 L1600021 MW-11 Collected date/time: 03/29/23 13:35 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/05/2023 20:56 WG2035622 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0130 0.0100 1 04/06/2023 13:37 WG2035944 Barium,Dissolved 0.100 0.00500 1 04/06/2023 13:37 WG2035944 Cadmium,Dissolved ND 0.00200 1 04/06/2023 13:37 WG2035944 Chromium,Dissolved ND 0.0100 1 04/06/2023 13:37 WG2035944 Iron,Dissolved ND 0.100 1 04/06/2023 13:37 WG2035944 Lead,Dissolved ND 0.00600 1 04/06/2023 13:37 WG2035944 Manganese,Dissolved 0.184 0.0100 1 04/06/2023 13:37 WG2035944 Selenium,Dissolved 0.0123 0.0100 1 04/06/2023 13:37 WG2035944 Silver,Dissolved ND 0.00500 1 04/06/2023 13:37 WG2035944 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 04/04/2023 20:53 WG2035565 Acrolein ND 0.0500 1 04/04/2023 20:53 WG2035565 Acrylonitrile ND 0.0100 1 04/04/2023 20:53 WG2035565 Benzene ND 0.00100 1 04/04/2023 20:53 WG2035565 Bromobenzene ND 0.00100 1 04/04/2023 20:53 WG2035565 Bromodichloromethane ND 0.00100 1 04/04/2023 20:53 WG2035565 Bromoform ND 0.00100 1 04/04/2023 20:53 WG2035565 Bromomethane ND 0.00500 1 04/04/2023 20:53 WG2035565 n-Butylbenzene ND 0.00100 1 04/04/2023 20:53 WG2035565 sec-Butylbenzene ND 0.00100 1 04/04/2023 20:53 WG2035565 tert-Butylbenzene ND 0.00100 1 04/04/2023 20:53 WG2035565 Carbon tetrachloride ND 0.00100 1 04/04/2023 20:53 WG2035565 Chlorobenzene ND 0.00100 1 04/04/2023 20:53 WG2035565 Chlorodibromomethane ND 0.00100 1 04/04/2023 20:53 WG2035565 Chloroethane ND 0.00500 1 04/04/2023 20:53 WG2035565 Chloroform ND 0.00500 1 04/04/2023 20:53 WG2035565 Chloromethane ND 0.00250 1 04/04/2023 20:53 WG2035565 2-Chlorotoluene ND 0.00100 1 04/04/2023 20:53 WG2035565 4-Chlorotoluene ND 0.00100 1 04/04/2023 20:53 WG2035565 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/04/2023 20:53 WG2035565 1,2-Dibromoethane ND 0.00100 1 04/04/2023 20:53 WG2035565 Dibromomethane ND 0.00100 1 04/04/2023 20:53 WG2035565 1,2-Dichlorobenzene ND 0.00100 1 04/04/2023 20:53 WG2035565 1,3-Dichlorobenzene ND 0.00100 1 04/04/2023 20:53 WG2035565 1,4-Dichlorobenzene ND 0.00100 1 04/04/2023 20:53 WG2035565 Dichlorodifluoromethane ND 0.00500 1 04/04/2023 20:53 WG2035565 1,1-Dichloroethane 0.0131 0.00100 1 04/04/2023 20:53 WG2035565 1,2-Dichloroethane 0.00106 0.00100 1 04/04/2023 20:53 WG2035565 1,1-Dichloroethene 0.819 0.0500 50 04/06/2023 03:19 WG2036381 cis-1,2-Dichloroethene ND 0.00100 1 04/04/2023 20:53 WG2035565 trans-1,2-Dichloroethene ND 0.00100 1 04/04/2023 20:53 WG2035565 1,2-Dichloropropane ND 0.00100 1 04/04/2023 20:53 WG2035565 1,1-Dichloropropene ND 0.00100 1 04/04/2023 20:53 WG2035565 1,3-Dichloropropane ND 0.00100 1 04/04/2023 20:53 WG2035565 cis-1,3-Dichloropropene ND 0.00100 1 04/04/2023 20:53 WG2035565 trans-1,3-Dichloropropene ND 0.00100 1 04/04/2023 20:53 WG2035565 2,2-Dichloropropane ND 0.00100 1 04/04/2023 20:53 WG2035565 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 38 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 38 of 82 SAMPLE RESULTS - 13 L1600021 MW-11 Collected date/time: 03/29/23 13:35 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/04/2023 20:53 WG2035565 Ethylbenzene ND 0.00100 1 04/04/2023 20:53 WG2035565 Hexachloro-1,3-butadiene ND J3 0.00100 1 04/04/2023 20:53 WG2035565 Isopropylbenzene ND 0.00100 1 04/04/2023 20:53 WG2035565 p-Isopropyltoluene ND 0.00100 1 04/04/2023 20:53 WG2035565 2-Butanone (MEK)ND 0.0100 1 04/04/2023 20:53 WG2035565 Methylene Chloride ND 0.00500 1 04/04/2023 20:53 WG2035565 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/04/2023 20:53 WG2035565 Methyl tert-butyl ether ND 0.00100 1 04/04/2023 20:53 WG2035565 Naphthalene ND 0.00500 1 04/04/2023 20:53 WG2035565 n-Propylbenzene ND 0.00100 1 04/04/2023 20:53 WG2035565 Styrene ND 0.00100 1 04/04/2023 20:53 WG2035565 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/04/2023 20:53 WG2035565 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/04/2023 20:53 WG2035565 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/04/2023 20:53 WG2035565 Tetrachloroethene ND 0.00100 1 04/04/2023 20:53 WG2035565 Toluene ND 0.00100 1 04/04/2023 20:53 WG2035565 1,2,3-Trichlorobenzene ND 0.00100 1 04/04/2023 20:53 WG2035565 1,2,4-Trichlorobenzene ND 0.00100 1 04/04/2023 20:53 WG2035565 1,1,1-Trichloroethane ND 0.00100 1 04/04/2023 20:53 WG2035565 1,1,2-Trichloroethane ND 0.00100 1 04/04/2023 20:53 WG2035565 Trichloroethene ND 0.00100 1 04/04/2023 20:53 WG2035565 Trichlorofluoromethane ND 0.00500 1 04/04/2023 20:53 WG2035565 1,2,3-Trichloropropane ND 0.00250 1 04/04/2023 20:53 WG2035565 1,2,4-Trimethylbenzene ND 0.00100 1 04/04/2023 20:53 WG2035565 1,2,3-Trimethylbenzene ND 0.00100 1 04/04/2023 20:53 WG2035565 1,3,5-Trimethylbenzene ND 0.00100 1 04/04/2023 20:53 WG2035565 Vinyl chloride ND 0.00100 1 04/04/2023 20:53 WG2035565 Xylenes, Total ND 0.00300 1 04/04/2023 20:53 WG2035565 (S) Toluene-d8 105 80.0-120 04/04/2023 20:53 WG2035565 (S) Toluene-d8 112 80.0-120 04/06/2023 03:19 WG2036381 (S) 4-Bromofluorobenzene 106 77.0-126 04/04/2023 20:53 WG2035565 (S) 4-Bromofluorobenzene 104 77.0-126 04/06/2023 03:19 WG2036381 (S) 1,2-Dichloroethane-d4 96.4 70.0-130 04/04/2023 20:53 WG2035565 (S) 1,2-Dichloroethane-d4 114 70.0-130 04/06/2023 03:19 WG2036381 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 04/05/2023 23:01 WG2035893 Acenaphthylene ND 0.00100 1 04/05/2023 23:01 WG2035893 Anthracene ND 0.00100 1 04/05/2023 23:01 WG2035893 Benzidine ND J4 0.0100 1 04/05/2023 23:01 WG2035893 Benzo(a)anthracene ND 0.00100 1 04/05/2023 23:01 WG2035893 Benzo(b)fluoranthene ND 0.00100 1 04/05/2023 23:01 WG2035893 Benzo(k)fluoranthene ND 0.00100 1 04/05/2023 23:01 WG2035893 Benzo(g,h,i)perylene ND 0.00100 1 04/05/2023 23:01 WG2035893 Benzo(a)pyrene ND 0.00100 1 04/05/2023 23:01 WG2035893 Bis(2-chlorethoxy)methane ND 0.0100 1 04/05/2023 23:01 WG2035893 Bis(2-chloroethyl)ether ND 0.0100 1 04/05/2023 23:01 WG2035893 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 04/05/2023 23:01 WG2035893 4-Bromophenyl-phenylether ND 0.0100 1 04/05/2023 23:01 WG2035893 2-Chloronaphthalene ND 0.00100 1 04/05/2023 23:01 WG2035893 4-Chlorophenyl-phenylether ND 0.0100 1 04/05/2023 23:01 WG2035893 Chrysene ND 0.00100 1 04/05/2023 23:01 WG2035893 Dibenz(a,h)anthracene ND 0.00100 1 04/05/2023 23:01 WG2035893 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 39 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 39 of 82 SAMPLE RESULTS - 13 L1600021 MW-11 Collected date/time: 03/29/23 13:35 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,2-Dichlorobenzene ND 0.0100 1 04/05/2023 23:01 WG2035893 1,3-Dichlorobenzene ND 0.0100 1 04/05/2023 23:01 WG2035893 1,4-Dichlorobenzene ND 0.0100 1 04/05/2023 23:01 WG2035893 3,3-Dichlorobenzidine ND J4 0.0100 1 04/05/2023 23:01 WG2035893 2,4-Dinitrotoluene ND 0.0100 1 04/05/2023 23:01 WG2035893 2,6-Dinitrotoluene ND 0.0100 1 04/05/2023 23:01 WG2035893 Fluoranthene ND 0.00100 1 04/05/2023 23:01 WG2035893 Fluorene ND 0.00100 1 04/05/2023 23:01 WG2035893 Hexachlorobenzene ND 0.00100 1 04/05/2023 23:01 WG2035893 Hexachloro-1,3-butadiene ND 0.0100 1 04/05/2023 23:01 WG2035893 Hexachlorocyclopentadiene ND 0.0100 1 04/05/2023 23:01 WG2035893 Hexachloroethane ND 0.0100 1 04/05/2023 23:01 WG2035893 Indeno(1,2,3-cd)pyrene ND 0.00100 1 04/05/2023 23:01 WG2035893 Isophorone ND 0.0100 1 04/05/2023 23:01 WG2035893 Naphthalene ND 0.00100 1 04/05/2023 23:01 WG2035893 Nitrobenzene ND 0.0100 1 04/05/2023 23:01 WG2035893 n-Nitrosodimethylamine ND 0.0100 1 04/05/2023 23:01 WG2035893 n-Nitrosodiphenylamine ND 0.0100 1 04/05/2023 23:01 WG2035893 n-Nitrosodi-n-propylamine ND 0.0100 1 04/05/2023 23:01 WG2035893 Phenanthrene ND 0.00100 1 04/05/2023 23:01 WG2035893 Benzylbutyl phthalate ND 0.00300 1 04/05/2023 23:01 WG2035893 Bis(2-ethylhexyl)phthalate ND 0.00300 1 04/05/2023 23:01 WG2035893 Di-n-butyl phthalate ND 0.00300 1 04/05/2023 23:01 WG2035893 Diethyl phthalate ND 0.00300 1 04/05/2023 23:01 WG2035893 Dimethyl phthalate ND 0.00300 1 04/05/2023 23:01 WG2035893 Di-n-octyl phthalate ND 0.00300 1 04/05/2023 23:01 WG2035893 Pyrene ND 0.00100 1 04/05/2023 23:01 WG2035893 1,2,4-Trichlorobenzene ND 0.0100 1 04/05/2023 23:01 WG2035893 4-Chloro-3-methylphenol ND 0.0100 1 04/05/2023 23:01 WG2035893 2-Chlorophenol ND 0.0100 1 04/05/2023 23:01 WG2035893 2,4-Dichlorophenol ND 0.0100 1 04/05/2023 23:01 WG2035893 2,4-Dimethylphenol ND 0.0100 1 04/05/2023 23:01 WG2035893 4,6-Dinitro-2-methylphenol ND 0.0100 1 04/05/2023 23:01 WG2035893 2,4-Dinitrophenol ND 0.0100 1 04/05/2023 23:01 WG2035893 2-Nitrophenol ND 0.0100 1 04/05/2023 23:01 WG2035893 4-Nitrophenol ND 0.0100 1 04/05/2023 23:01 WG2035893 Pentachlorophenol ND 0.0100 1 04/05/2023 23:01 WG2035893 Phenol ND 0.0100 1 04/05/2023 23:01 WG2035893 2,4,6-Trichlorophenol ND 0.0100 1 04/05/2023 23:01 WG2035893 (S) 2-Fluorophenol 21.1 10.0-120 04/05/2023 23:01 WG2035893 (S) Phenol-d5 15.1 10.0-120 04/05/2023 23:01 WG2035893 (S) Nitrobenzene-d5 48.8 10.0-127 04/05/2023 23:01 WG2035893 (S) 2-Fluorobiphenyl 46.2 10.0-130 04/05/2023 23:01 WG2035893 (S) 2,4,6-Tribromophenol 41.2 10.0-155 04/05/2023 23:01 WG2035893 (S) p-Terphenyl-d14 57.9 10.0-128 04/05/2023 23:01 WG2035893 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.428 E 0.000400 1 04/05/2023 21:28 WG2034588 (S) Nitrobenzene-d5 43.2 10.0-120 04/05/2023 21:28 WG2034588 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 40 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 40 of 82 SAMPLE RESULTS - 14 L1600021 MW-21 Collected date/time: 03/29/23 14:55 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/05/2023 20:59 WG2035622 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0544 0.0100 1 04/06/2023 13:40 WG2035944 Barium,Dissolved 0.122 0.00500 1 04/06/2023 13:40 WG2035944 Cadmium,Dissolved ND 0.00200 1 04/06/2023 13:40 WG2035944 Chromium,Dissolved ND 0.0100 1 04/06/2023 13:40 WG2035944 Iron,Dissolved ND 0.100 1 04/06/2023 13:40 WG2035944 Lead,Dissolved ND 0.00600 1 04/06/2023 13:40 WG2035944 Manganese,Dissolved 0.0308 0.0100 1 04/06/2023 13:40 WG2035944 Selenium,Dissolved ND 0.0100 1 04/06/2023 13:40 WG2035944 Silver,Dissolved ND 0.00500 1 04/06/2023 13:40 WG2035944 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 04/04/2023 21:15 WG2035565 Acrolein ND 0.0500 1 04/04/2023 21:15 WG2035565 Acrylonitrile ND 0.0100 1 04/04/2023 21:15 WG2035565 Benzene ND 0.00100 1 04/04/2023 21:15 WG2035565 Bromobenzene ND 0.00100 1 04/04/2023 21:15 WG2035565 Bromodichloromethane ND 0.00100 1 04/04/2023 21:15 WG2035565 Bromoform ND 0.00100 1 04/04/2023 21:15 WG2035565 Bromomethane ND 0.00500 1 04/04/2023 21:15 WG2035565 n-Butylbenzene ND 0.00100 1 04/04/2023 21:15 WG2035565 sec-Butylbenzene ND 0.00100 1 04/04/2023 21:15 WG2035565 tert-Butylbenzene ND 0.00100 1 04/04/2023 21:15 WG2035565 Carbon tetrachloride ND 0.00100 1 04/04/2023 21:15 WG2035565 Chlorobenzene ND 0.00100 1 04/04/2023 21:15 WG2035565 Chlorodibromomethane ND 0.00100 1 04/04/2023 21:15 WG2035565 Chloroethane ND 0.00500 1 04/04/2023 21:15 WG2035565 Chloroform ND 0.00500 1 04/04/2023 21:15 WG2035565 Chloromethane ND 0.00250 1 04/04/2023 21:15 WG2035565 2-Chlorotoluene ND 0.00100 1 04/04/2023 21:15 WG2035565 4-Chlorotoluene ND 0.00100 1 04/04/2023 21:15 WG2035565 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/04/2023 21:15 WG2035565 1,2-Dibromoethane ND 0.00100 1 04/04/2023 21:15 WG2035565 Dibromomethane ND 0.00100 1 04/04/2023 21:15 WG2035565 1,2-Dichlorobenzene ND 0.00100 1 04/04/2023 21:15 WG2035565 1,3-Dichlorobenzene ND 0.00100 1 04/04/2023 21:15 WG2035565 1,4-Dichlorobenzene ND 0.00100 1 04/04/2023 21:15 WG2035565 Dichlorodifluoromethane ND 0.00500 1 04/04/2023 21:15 WG2035565 1,1-Dichloroethane ND 0.00100 1 04/04/2023 21:15 WG2035565 1,2-Dichloroethane ND 0.00100 1 04/04/2023 21:15 WG2035565 1,1-Dichloroethene 0.0346 0.00100 1 04/05/2023 22:39 WG2036381 cis-1,2-Dichloroethene ND 0.00100 1 04/04/2023 21:15 WG2035565 trans-1,2-Dichloroethene ND 0.00100 1 04/04/2023 21:15 WG2035565 1,2-Dichloropropane ND 0.00100 1 04/04/2023 21:15 WG2035565 1,1-Dichloropropene ND 0.00100 1 04/04/2023 21:15 WG2035565 1,3-Dichloropropane ND 0.00100 1 04/04/2023 21:15 WG2035565 cis-1,3-Dichloropropene ND 0.00100 1 04/04/2023 21:15 WG2035565 trans-1,3-Dichloropropene ND 0.00100 1 04/04/2023 21:15 WG2035565 2,2-Dichloropropane ND 0.00100 1 04/04/2023 21:15 WG2035565 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 41 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 41 of 82 SAMPLE RESULTS - 14 L1600021 MW-21 Collected date/time: 03/29/23 14:55 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/04/2023 21:15 WG2035565 Ethylbenzene ND 0.00100 1 04/04/2023 21:15 WG2035565 Hexachloro-1,3-butadiene ND J3 0.00100 1 04/04/2023 21:15 WG2035565 Isopropylbenzene ND 0.00100 1 04/04/2023 21:15 WG2035565 p-Isopropyltoluene ND 0.00100 1 04/04/2023 21:15 WG2035565 2-Butanone (MEK)ND 0.0100 1 04/04/2023 21:15 WG2035565 Methylene Chloride ND 0.00500 1 04/04/2023 21:15 WG2035565 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/04/2023 21:15 WG2035565 Methyl tert-butyl ether ND 0.00100 1 04/04/2023 21:15 WG2035565 Naphthalene ND 0.00500 1 04/04/2023 21:15 WG2035565 n-Propylbenzene ND 0.00100 1 04/04/2023 21:15 WG2035565 Styrene ND 0.00100 1 04/04/2023 21:15 WG2035565 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/04/2023 21:15 WG2035565 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/04/2023 21:15 WG2035565 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/04/2023 21:15 WG2035565 Tetrachloroethene ND 0.00100 1 04/04/2023 21:15 WG2035565 Toluene ND 0.00100 1 04/04/2023 21:15 WG2035565 1,2,3-Trichlorobenzene ND 0.00100 1 04/04/2023 21:15 WG2035565 1,2,4-Trichlorobenzene ND 0.00100 1 04/04/2023 21:15 WG2035565 1,1,1-Trichloroethane ND 0.00100 1 04/04/2023 21:15 WG2035565 1,1,2-Trichloroethane ND 0.00100 1 04/04/2023 21:15 WG2035565 Trichloroethene ND 0.00100 1 04/04/2023 21:15 WG2035565 Trichlorofluoromethane ND 0.00500 1 04/04/2023 21:15 WG2035565 1,2,3-Trichloropropane ND 0.00250 1 04/04/2023 21:15 WG2035565 1,2,4-Trimethylbenzene ND 0.00100 1 04/04/2023 21:15 WG2035565 1,2,3-Trimethylbenzene ND 0.00100 1 04/04/2023 21:15 WG2035565 1,3,5-Trimethylbenzene ND 0.00100 1 04/04/2023 21:15 WG2035565 Vinyl chloride ND 0.00100 1 04/04/2023 21:15 WG2035565 Xylenes, Total ND 0.00300 1 04/04/2023 21:15 WG2035565 (S) Toluene-d8 105 80.0-120 04/04/2023 21:15 WG2035565 (S) Toluene-d8 110 80.0-120 04/05/2023 22:39 WG2036381 (S) 4-Bromofluorobenzene 104 77.0-126 04/04/2023 21:15 WG2035565 (S) 4-Bromofluorobenzene 107 77.0-126 04/05/2023 22:39 WG2036381 (S) 1,2-Dichloroethane-d4 99.3 70.0-130 04/04/2023 21:15 WG2035565 (S) 1,2-Dichloroethane-d4 121 70.0-130 04/05/2023 22:39 WG2036381 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00508 0.000400 1 04/06/2023 00:22 WG2034588 (S) Nitrobenzene-d5 45.6 10.0-120 04/06/2023 00:22 WG2034588 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 42 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 42 of 82 SAMPLE RESULTS - 15 L1600021 GMW-2 Collected date/time: 03/29/23 16:10 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/05/2023 21:01 WG2035622 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0150 0.0100 1 04/06/2023 13:43 WG2035944 Barium,Dissolved 0.223 0.00500 1 04/06/2023 13:43 WG2035944 Cadmium,Dissolved ND 0.00200 1 04/06/2023 13:43 WG2035944 Chromium,Dissolved ND 0.0100 1 04/06/2023 13:43 WG2035944 Iron,Dissolved ND 0.100 1 04/06/2023 13:43 WG2035944 Lead,Dissolved ND 0.00600 1 04/06/2023 13:43 WG2035944 Manganese,Dissolved 0.355 0.0100 1 04/06/2023 13:43 WG2035944 Selenium,Dissolved ND 0.0100 1 04/06/2023 13:43 WG2035944 Silver,Dissolved ND 0.00500 1 04/06/2023 13:43 WG2035944 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 04/04/2023 21:37 WG2035565 Acrolein ND 0.0500 1 04/04/2023 21:37 WG2035565 Acrylonitrile ND 0.0100 1 04/04/2023 21:37 WG2035565 Benzene ND 0.00100 1 04/04/2023 21:37 WG2035565 Bromobenzene ND 0.00100 1 04/04/2023 21:37 WG2035565 Bromodichloromethane ND 0.00100 1 04/04/2023 21:37 WG2035565 Bromoform ND 0.00100 1 04/04/2023 21:37 WG2035565 Bromomethane ND 0.00500 1 04/04/2023 21:37 WG2035565 n-Butylbenzene ND 0.00100 1 04/04/2023 21:37 WG2035565 sec-Butylbenzene ND 0.00100 1 04/04/2023 21:37 WG2035565 tert-Butylbenzene ND 0.00100 1 04/04/2023 21:37 WG2035565 Carbon tetrachloride ND 0.00100 1 04/04/2023 21:37 WG2035565 Chlorobenzene ND 0.00100 1 04/04/2023 21:37 WG2035565 Chlorodibromomethane ND 0.00100 1 04/04/2023 21:37 WG2035565 Chloroethane ND 0.00500 1 04/04/2023 21:37 WG2035565 Chloroform ND 0.00500 1 04/04/2023 21:37 WG2035565 Chloromethane ND 0.00250 1 04/04/2023 21:37 WG2035565 2-Chlorotoluene ND 0.00100 1 04/04/2023 21:37 WG2035565 4-Chlorotoluene ND 0.00100 1 04/04/2023 21:37 WG2035565 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/04/2023 21:37 WG2035565 1,2-Dibromoethane ND 0.00100 1 04/04/2023 21:37 WG2035565 Dibromomethane ND 0.00100 1 04/04/2023 21:37 WG2035565 1,2-Dichlorobenzene ND 0.00100 1 04/04/2023 21:37 WG2035565 1,3-Dichlorobenzene ND 0.00100 1 04/04/2023 21:37 WG2035565 1,4-Dichlorobenzene ND 0.00100 1 04/04/2023 21:37 WG2035565 Dichlorodifluoromethane ND 0.00500 1 04/04/2023 21:37 WG2035565 1,1-Dichloroethane ND 0.00100 1 04/04/2023 21:37 WG2035565 1,2-Dichloroethane ND 0.00100 1 04/04/2023 21:37 WG2035565 1,1-Dichloroethene ND 0.00100 1 04/05/2023 22:59 WG2036381 cis-1,2-Dichloroethene ND 0.00100 1 04/04/2023 21:37 WG2035565 trans-1,2-Dichloroethene ND 0.00100 1 04/04/2023 21:37 WG2035565 1,2-Dichloropropane ND 0.00100 1 04/04/2023 21:37 WG2035565 1,1-Dichloropropene ND 0.00100 1 04/04/2023 21:37 WG2035565 1,3-Dichloropropane ND 0.00100 1 04/04/2023 21:37 WG2035565 cis-1,3-Dichloropropene ND 0.00100 1 04/04/2023 21:37 WG2035565 trans-1,3-Dichloropropene ND 0.00100 1 04/04/2023 21:37 WG2035565 2,2-Dichloropropane ND 0.00100 1 04/04/2023 21:37 WG2035565 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 43 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 43 of 82 SAMPLE RESULTS - 15 L1600021 GMW-2 Collected date/time: 03/29/23 16:10 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/04/2023 21:37 WG2035565 Ethylbenzene ND 0.00100 1 04/04/2023 21:37 WG2035565 Hexachloro-1,3-butadiene ND J3 0.00100 1 04/04/2023 21:37 WG2035565 Isopropylbenzene ND 0.00100 1 04/04/2023 21:37 WG2035565 p-Isopropyltoluene ND 0.00100 1 04/04/2023 21:37 WG2035565 2-Butanone (MEK)ND 0.0100 1 04/04/2023 21:37 WG2035565 Methylene Chloride ND 0.00500 1 04/04/2023 21:37 WG2035565 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/04/2023 21:37 WG2035565 Methyl tert-butyl ether ND 0.00100 1 04/04/2023 21:37 WG2035565 Naphthalene ND 0.00500 1 04/04/2023 21:37 WG2035565 n-Propylbenzene ND 0.00100 1 04/04/2023 21:37 WG2035565 Styrene ND 0.00100 1 04/04/2023 21:37 WG2035565 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/04/2023 21:37 WG2035565 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/04/2023 21:37 WG2035565 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/04/2023 21:37 WG2035565 Tetrachloroethene ND 0.00100 1 04/04/2023 21:37 WG2035565 Toluene ND 0.00100 1 04/04/2023 21:37 WG2035565 1,2,3-Trichlorobenzene ND 0.00100 1 04/04/2023 21:37 WG2035565 1,2,4-Trichlorobenzene ND 0.00100 1 04/04/2023 21:37 WG2035565 1,1,1-Trichloroethane ND 0.00100 1 04/04/2023 21:37 WG2035565 1,1,2-Trichloroethane ND 0.00100 1 04/04/2023 21:37 WG2035565 Trichloroethene ND 0.00100 1 04/04/2023 21:37 WG2035565 Trichlorofluoromethane ND 0.00500 1 04/04/2023 21:37 WG2035565 1,2,3-Trichloropropane ND 0.00250 1 04/04/2023 21:37 WG2035565 1,2,4-Trimethylbenzene ND 0.00100 1 04/04/2023 21:37 WG2035565 1,2,3-Trimethylbenzene ND 0.00100 1 04/04/2023 21:37 WG2035565 1,3,5-Trimethylbenzene ND 0.00100 1 04/04/2023 21:37 WG2035565 Vinyl chloride ND 0.00100 1 04/04/2023 21:37 WG2035565 Xylenes, Total ND 0.00300 1 04/04/2023 21:37 WG2035565 (S) Toluene-d8 106 80.0-120 04/04/2023 21:37 WG2035565 (S) Toluene-d8 105 80.0-120 04/05/2023 22:59 WG2036381 (S) 4-Bromofluorobenzene 108 77.0-126 04/04/2023 21:37 WG2035565 (S) 4-Bromofluorobenzene 101 77.0-126 04/05/2023 22:59 WG2036381 (S) 1,2-Dichloroethane-d4 96.8 70.0-130 04/04/2023 21:37 WG2035565 (S) 1,2-Dichloroethane-d4 121 70.0-130 04/05/2023 22:59 WG2036381 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.000706 B 0.000400 1 04/05/2023 21:47 WG2034588 (S) Nitrobenzene-d5 46.0 10.0-120 04/05/2023 21:47 WG2034588 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 44 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 44 of 82 QUALITY CONTROL SUMMARYWG2033924 Mercury by Method 7470A L1600021-01,02,03,04,05,06 Method Blank (MB) (MB) R3910145-1 04/06/23 11:22 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Mercury,Dissolved U 0.000100 0.000200 Laboratory Control Sample (LCS) (LCS) R3910145-2 04/06/23 11:24 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Mercury,Dissolved 0.00300 0.00301 100 80.0-120 L1600512-04 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1600512-04 04/06/23 11:26 • (MS) R3910145-3 04/06/23 11:29 • (MSD) R3910145-4 04/06/23 11:31 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Mercury,Dissolved 0.00300 ND 0.00292 0.00301 97.3 100 1 75.0-125 3.04 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 45 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 45 of 82 QUALITY CONTROL SUMMARYWG2035622 Mercury by Method 7470A L1600021-07,08,09,10,11,12,13,14,15 Method Blank (MB) (MB) R3909860-1 04/05/23 20:21 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Mercury,Dissolved U 0.000100 0.000200 Laboratory Control Sample (LCS) (LCS) R3909860-2 04/05/23 20:23 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Mercury,Dissolved 0.00300 0.00324 108 80.0-120 L1600021-07 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1600021-07 04/05/23 20:25 • (MS) R3909860-3 04/05/23 20:28 • (MSD) R3909860-4 04/05/23 20:30 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Mercury,Dissolved 0.00300 ND 0.00282 0.00284 94.0 94.7 1 75.0-125 0.707 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 46 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 46 of 82 QUALITY CONTROL SUMMARYWG2033308 Metals (ICP) by Method 6010B L1600021-01,02,03,04,05,06 Method Blank (MB) (MB) R3909151-1 04/04/23 13:11 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Arsenic,Dissolved U 0.00440 0.0100 Barium,Dissolved U 0.000736 0.00500 Cadmium,Dissolved U 0.000479 0.00200 Chromium,Dissolved U 0.00140 0.0100 Iron,Dissolved U 0.0180 0.100 Lead,Dissolved U 0.00299 0.00600 Manganese,Dissolved U 0.000934 0.0100 Selenium,Dissolved U 0.00735 0.0100 Silver,Dissolved U 0.00154 0.00500 Laboratory Control Sample (LCS) (LCS) R3909151-2 04/04/23 13:13 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Arsenic,Dissolved 1.00 0.953 95.3 80.0-120 Barium,Dissolved 1.00 1.00 100 80.0-120 Cadmium,Dissolved 1.00 0.951 95.1 80.0-120 Chromium,Dissolved 1.00 0.961 96.1 80.0-120 Iron,Dissolved 10.0 9.70 97.0 80.0-120 Lead,Dissolved 1.00 0.963 96.3 80.0-120 Manganese,Dissolved 1.00 0.924 92.4 80.0-120 Selenium,Dissolved 1.00 1.00 100 80.0-120 Silver,Dissolved 0.200 0.192 96.0 80.0-120 L1599298-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1599298-01 04/04/23 13:16 • (MS) R3909151-4 04/04/23 13:21 • (MSD) R3909151-5 04/04/23 13:24 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Arsenic,Dissolved 1.00 ND 0.993 0.998 99.3 99.8 1 75.0-125 0.509 20 Barium,Dissolved 1.00 0.241 1.20 1.27 96.3 103 1 75.0-125 5.55 20 Cadmium,Dissolved 1.00 ND 0.983 0.967 98.3 96.7 1 75.0-125 1.61 20 Chromium,Dissolved 1.00 ND 0.974 0.954 97.4 95.4 1 75.0-125 2.11 20 Iron,Dissolved 10.0 ND 9.84 9.71 98.2 96.9 1 75.0-125 1.33 20 Lead,Dissolved 1.00 ND 0.981 0.961 98.1 96.1 1 75.0-125 2.13 20 Manganese,Dissolved 1.00 0.0722 0.990 0.991 91.8 91.9 1 75.0-125 0.156 20 Selenium,Dissolved 1.00 0.0113 1.05 1.03 104 102 1 75.0-125 2.20 20 Silver,Dissolved 0.200 ND 0.198 0.192 98.8 95.9 1 75.0-125 2.99 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 47 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 47 of 82 QUALITY CONTROL SUMMARYWG2035944 Metals (ICP) by Method 6010B L1600021-07,08,09,10,11,12,13,14,15 Method Blank (MB) (MB) R3910361-1 04/06/23 12:44 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Arsenic,Dissolved U 0.00440 0.0100 Barium,Dissolved U 0.000736 0.00500 Cadmium,Dissolved 0.000531 J 0.000479 0.00200 Chromium,Dissolved U 0.00140 0.0100 Iron,Dissolved U 0.0180 0.100 Lead,Dissolved U 0.00299 0.00600 Manganese,Dissolved U 0.000934 0.0100 Selenium,Dissolved U 0.00735 0.0100 Silver,Dissolved U 0.00154 0.00500 Laboratory Control Sample (LCS) (LCS) R3910361-2 04/06/23 12:52 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Arsenic,Dissolved 1.00 0.965 96.5 80.0-120 Barium,Dissolved 1.00 1.04 104 80.0-120 Cadmium,Dissolved 1.00 0.997 99.7 80.0-120 Chromium,Dissolved 1.00 0.995 99.5 80.0-120 Iron,Dissolved 10.0 10.2 102 80.0-120 Lead,Dissolved 1.00 0.997 99.7 80.0-120 Manganese,Dissolved 1.00 0.947 94.7 80.0-120 Selenium,Dissolved 1.00 0.978 97.8 80.0-120 Silver,Dissolved 0.200 0.188 93.9 80.0-120 L1600021-07 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1600021-07 04/06/23 13:06 • (MS) R3910361-4 04/06/23 13:12 • (MSD) R3910361-5 04/06/23 13:15 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Arsenic,Dissolved 1.00 0.114 1.12 1.09 100 97.4 1 75.0-125 2.77 20 Barium,Dissolved 1.00 0.240 1.26 1.26 102 102 1 75.0-125 0.471 20 Cadmium,Dissolved 1.00 ND 1.03 1.02 102 102 1 75.0-125 0.590 20 Chromium,Dissolved 1.00 ND 0.989 0.982 98.9 98.2 1 75.0-125 0.713 20 Iron,Dissolved 10.0 ND 10.0 9.96 100 99.6 1 75.0-125 0.729 20 Lead,Dissolved 1.00 ND 1.00 1.00 100 99.7 1 75.0-125 0.428 20 Manganese,Dissolved 1.00 0.139 1.07 1.06 92.8 92.4 1 75.0-125 0.397 20 Selenium,Dissolved 1.00 ND 1.04 1.02 104 102 1 75.0-125 1.81 20 Silver,Dissolved 0.200 ND 0.199 0.198 99.6 99.2 1 75.0-125 0.425 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 48 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 48 of 82 QUALITY CONTROL SUMMARYWG2035040 Volatile Organic Compounds (GC/MS) by Method 8260B L1600021-01,02,03,04,05,06 Method Blank (MB) (MB) R3909731-3 04/04/23 00:21 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acetone U 0.0113 0.0500 Acrolein U 0.00254 0.0500 Acrylonitrile U 0.000671 0.0100 Benzene U 0.0000941 0.00100 Bromobenzene U 0.000118 0.00100 Bromodichloromethane U 0.000136 0.00100 Bromoform U 0.000129 0.00100 Bromomethane U 0.000605 0.00500 n-Butylbenzene U 0.000157 0.00100 sec-Butylbenzene U 0.000125 0.00100 tert-Butylbenzene U 0.000127 0.00100 Carbon tetrachloride U 0.000128 0.00100 Chlorobenzene U 0.000116 0.00100 Chlorodibromomethane U 0.000140 0.00100 Chloroethane U 0.000192 0.00500 Chloroform U 0.000111 0.00500 Chloromethane U 0.000960 0.00250 2-Chlorotoluene U 0.000106 0.00100 4-Chlorotoluene U 0.000114 0.00100 1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1,2-Dibromoethane U 0.000126 0.00100 Dibromomethane U 0.000122 0.00100 1,2-Dichlorobenzene U 0.000107 0.00100 1,3-Dichlorobenzene U 0.000110 0.00100 1,4-Dichlorobenzene U 0.000120 0.00100 Dichlorodifluoromethane U 0.000374 0.00500 1,1-Dichloroethane U 0.000100 0.00100 1,2-Dichloroethane U 0.0000819 0.00100 1,1-Dichloroethene U 0.000188 0.00100 cis-1,2-Dichloroethene U 0.000126 0.00100 trans-1,2-Dichloroethene U 0.000149 0.00100 1,2-Dichloropropane U 0.000149 0.00100 1,1-Dichloropropene U 0.000142 0.00100 1,3-Dichloropropane U 0.000110 0.00100 cis-1,3-Dichloropropene U 0.000111 0.00100 trans-1,3-Dichloropropene U 0.000118 0.00100 2,2-Dichloropropane U 0.000161 0.00100 Di-isopropyl ether U 0.000105 0.00100 Ethylbenzene U 0.000137 0.00100 Hexachloro-1,3-butadiene U 0.000337 0.00100 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 49 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 49 of 82 QUALITY CONTROL SUMMARYWG2035040 Volatile Organic Compounds (GC/MS) by Method 8260B L1600021-01,02,03,04,05,06 Method Blank (MB) (MB) R3909731-3 04/04/23 00:21 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Isopropylbenzene U 0.000105 0.00100 p-Isopropyltoluene U 0.000120 0.00100 2-Butanone (MEK)U 0.00119 0.0100 Methylene Chloride U 0.000430 0.00500 4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100 Methyl tert-butyl ether U 0.000101 0.00100 Naphthalene U 0.00100 0.00500 n-Propylbenzene U 0.0000993 0.00100 Styrene U 0.000118 0.00100 1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 Tetrachloroethene U 0.000300 0.00100 Toluene U 0.000278 0.00100 1,2,3-Trichlorobenzene U 0.000230 0.00100 1,2,4-Trichlorobenzene U 0.000481 0.00100 1,1,1-Trichloroethane U 0.000149 0.00100 1,1,2-Trichloroethane U 0.000158 0.00100 Trichloroethene U 0.000190 0.00100 Trichlorofluoromethane U 0.000160 0.00500 1,2,3-Trichloropropane U 0.000237 0.00250 1,2,4-Trimethylbenzene U 0.000322 0.00100 1,2,3-Trimethylbenzene U 0.000104 0.00100 1,3,5-Trimethylbenzene U 0.000104 0.00100 Vinyl chloride U 0.000234 0.00100 Xylenes, Total U 0.000174 0.00300 (S) Toluene-d8 88.1 80.0-120 (S) 4-Bromofluorobenzene 81.9 77.0-126 (S) 1,2-Dichloroethane-d4 92.3 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3909731-1 04/03/23 23:16 • (LCSD) R3909731-2 04/03/23 23:38 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Acetone 0.0250 0.0238 0.0233 95.2 93.2 19.0-160 2.12 27 Acrolein 0.0250 0.0182 0.0173 72.8 69.2 10.0-160 5.07 26 Acrylonitrile 0.0250 0.0218 0.0183 87.2 73.2 55.0-149 17.5 20 Benzene 0.00500 0.00593 0.00529 119 106 70.0-123 11.4 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 50 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 50 of 82 QUALITY CONTROL SUMMARYWG2035040 Volatile Organic Compounds (GC/MS) by Method 8260B L1600021-01,02,03,04,05,06 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3909731-1 04/03/23 23:16 • (LCSD) R3909731-2 04/03/23 23:38 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Bromobenzene 0.00500 0.00556 0.00523 111 105 73.0-121 6.12 20 Bromodichloromethane 0.00500 0.00592 0.00500 118 100 75.0-120 16.8 20 Bromoform 0.00500 0.00498 0.00447 99.6 89.4 68.0-132 10.8 20 Bromomethane 0.00500 0.00219 0.00241 43.8 48.2 10.0-160 9.57 25 n-Butylbenzene 0.00500 0.00528 0.00520 106 104 73.0-125 1.53 20 sec-Butylbenzene 0.00500 0.00522 0.00488 104 97.6 75.0-125 6.73 20 tert-Butylbenzene 0.00500 0.00523 0.00485 105 97.0 76.0-124 7.54 20 Carbon tetrachloride 0.00500 0.00608 0.00526 122 105 68.0-126 14.5 20 Chlorobenzene 0.00500 0.00535 0.00482 107 96.4 80.0-121 10.4 20 Chlorodibromomethane 0.00500 0.00487 0.00468 97.4 93.6 77.0-125 3.98 20 Chloroethane 0.00500 0.00523 0.00456 105 91.2 47.0-150 13.7 20 Chloroform 0.00500 0.00561 0.00503 112 101 73.0-120 10.9 20 Chloromethane 0.00500 0.00283 0.00266 56.6 53.2 41.0-142 6.19 20 2-Chlorotoluene 0.00500 0.00529 0.00489 106 97.8 76.0-123 7.86 20 4-Chlorotoluene 0.00500 0.00520 0.00496 104 99.2 75.0-122 4.72 20 1,2-Dibromo-3-Chloropropane 0.00500 0.00408 0.00420 81.6 84.0 58.0-134 2.90 20 1,2-Dibromoethane 0.00500 0.00486 0.00441 97.2 88.2 80.0-122 9.71 20 Dibromomethane 0.00500 0.00563 0.00536 113 107 80.0-120 4.91 20 1,2-Dichlorobenzene 0.00500 0.00530 0.00509 106 102 79.0-121 4.04 20 1,3-Dichlorobenzene 0.00500 0.00539 0.00512 108 102 79.0-120 5.14 20 1,4-Dichlorobenzene 0.00500 0.00529 0.00512 106 102 79.0-120 3.27 20 Dichlorodifluoromethane 0.00500 0.00619 0.00514 124 103 51.0-149 18.5 20 1,1-Dichloroethane 0.00500 0.00512 0.00434 102 86.8 70.0-126 16.5 20 1,2-Dichloroethane 0.00500 0.00554 0.00489 111 97.8 70.0-128 12.5 20 1,1-Dichloroethene 0.00500 0.00559 0.00469 112 93.8 71.0-124 17.5 20 cis-1,2-Dichloroethene 0.00500 0.00549 0.00490 110 98.0 73.0-120 11.4 20 trans-1,2-Dichloroethene 0.00500 0.00529 0.00477 106 95.4 73.0-120 10.3 20 1,2-Dichloropropane 0.00500 0.00517 0.00475 103 95.0 77.0-125 8.47 20 1,1-Dichloropropene 0.00500 0.00551 0.00462 110 92.4 74.0-126 17.6 20 1,3-Dichloropropane 0.00500 0.00487 0.00458 97.4 91.6 80.0-120 6.14 20 cis-1,3-Dichloropropene 0.00500 0.00414 0.00390 82.8 78.0 80.0-123 J4 5.97 20 trans-1,3-Dichloropropene 0.00500 0.00405 0.00382 81.0 76.4 78.0-124 J4 5.84 20 2,2-Dichloropropane 0.00500 0.00563 0.00531 113 106 58.0-130 5.85 20 Di-isopropyl ether 0.00500 0.00499 0.00449 99.8 89.8 58.0-138 10.5 20 Ethylbenzene 0.00500 0.00520 0.00469 104 93.8 79.0-123 10.3 20 Hexachloro-1,3-butadiene 0.00500 0.00545 0.00513 109 103 54.0-138 6.05 20 Isopropylbenzene 0.00500 0.00538 0.00456 108 91.2 76.0-127 16.5 20 p-Isopropyltoluene 0.00500 0.00520 0.00488 104 97.6 76.0-125 6.35 20 2-Butanone (MEK)0.0250 0.0244 0.0214 97.6 85.6 44.0-160 13.1 20 Methylene Chloride 0.00500 0.00541 0.00468 108 93.6 67.0-120 14.5 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 51 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 51 of 82 QUALITY CONTROL SUMMARYWG2035040 Volatile Organic Compounds (GC/MS) by Method 8260B L1600021-01,02,03,04,05,06 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3909731-1 04/03/23 23:16 • (LCSD) R3909731-2 04/03/23 23:38 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 4-Methyl-2-pentanone (MIBK)0.0250 0.0227 0.0216 90.8 86.4 68.0-142 4.97 20 Methyl tert-butyl ether 0.00500 0.00561 0.00514 112 103 68.0-125 8.74 20 Naphthalene 0.00500 0.00468 0.00443 93.6 88.6 54.0-135 5.49 20 n-Propylbenzene 0.00500 0.00524 0.00492 105 98.4 77.0-124 6.30 20 Styrene 0.00500 0.00508 0.00432 102 86.4 73.0-130 16.2 20 1,1,1,2-Tetrachloroethane 0.00500 0.00552 0.00507 110 101 75.0-125 8.50 20 1,1,2,2-Tetrachloroethane 0.00500 0.00448 0.00481 89.6 96.2 65.0-130 7.10 20 1,1,2-Trichlorotrifluoroethane 0.00500 0.00582 0.00506 116 101 69.0-132 14.0 20 Tetrachloroethene 0.00500 0.00519 0.00475 104 95.0 72.0-132 8.85 20 Toluene 0.00500 0.00539 0.00488 108 97.6 79.0-120 9.93 20 1,2,3-Trichlorobenzene 0.00500 0.00476 0.00510 95.2 102 50.0-138 6.90 20 1,2,4-Trichlorobenzene 0.00500 0.00430 0.00488 86.0 97.6 57.0-137 12.6 20 1,1,1-Trichloroethane 0.00500 0.00571 0.00493 114 98.6 73.0-124 14.7 20 1,1,2-Trichloroethane 0.00500 0.00481 0.00462 96.2 92.4 80.0-120 4.03 20 Trichloroethene 0.00500 0.00600 0.00517 120 103 78.0-124 14.9 20 Trichlorofluoromethane 0.00500 0.00594 0.00484 119 96.8 59.0-147 J3 20.4 20 1,2,3-Trichloropropane 0.00500 0.00485 0.00494 97.0 98.8 73.0-130 1.84 20 1,2,4-Trimethylbenzene 0.00500 0.00537 0.00504 107 101 76.0-121 6.34 20 1,2,3-Trimethylbenzene 0.00500 0.00513 0.00506 103 101 77.0-120 1.37 20 1,3,5-Trimethylbenzene 0.00500 0.00541 0.00490 108 98.0 76.0-122 9.89 20 Vinyl chloride 0.00500 0.00506 0.00423 101 84.6 67.0-131 17.9 20 Xylenes, Total 0.0150 0.0159 0.0141 106 94.0 79.0-123 12.0 20 (S) Toluene-d8 94.9 95.1 80.0-120 (S) 4-Bromofluorobenzene 91.7 91.5 77.0-126 (S) 1,2-Dichloroethane-d4 96.8 89.9 70.0-130 L1599994-07 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1599994-07 04/04/23 03:59 • (MS) R3909731-4 04/04/23 08:39 • (MSD) R3909731-5 04/04/23 09:01 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Acetone 0.0250 ND ND ND 112 81.2 1 10.0-160 31.9 35 Acrolein 0.0250 ND ND ND 46.8 27.9 1 10.0-160 J3 50.5 39 Acrylonitrile 0.0250 ND 0.0268 0.0184 107 73.6 1 21.0-160 J3 37.2 32 Benzene 0.00500 ND 0.00744 0.00457 149 91.4 1 17.0-158 J3 47.8 27 Bromobenzene 0.00500 ND 0.00653 0.00459 131 91.8 1 30.0-149 J3 34.9 28 Bromodichloromethane 0.00500 ND 0.00707 0.00465 141 93.0 1 31.0-150 J3 41.3 27 Bromoform 0.00500 ND 0.00537 0.00399 107 79.8 1 29.0-150 J3 29.5 29 Bromomethane 0.00500 ND ND ND 58.4 42.0 1 10.0-160 32.7 38 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 52 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 52 of 82 QUALITY CONTROL SUMMARYWG2035040 Volatile Organic Compounds (GC/MS) by Method 8260B L1600021-01,02,03,04,05,06 L1599994-07 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1599994-07 04/04/23 03:59 • (MS) R3909731-4 04/04/23 08:39 • (MSD) R3909731-5 04/04/23 09:01 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% n-Butylbenzene 0.00500 ND 0.00608 0.00400 122 80.0 1 31.0-150 J3 41.3 30 sec-Butylbenzene 0.00500 ND 0.00645 0.00405 129 81.0 1 33.0-155 J3 45.7 29 tert-Butylbenzene 0.00500 ND 0.00646 0.00417 129 83.4 1 34.0-153 J3 43.1 28 Carbon tetrachloride 0.00500 ND 0.00877 0.00480 175 96.0 1 23.0-159 J5 J3 58.5 28 Chlorobenzene 0.00500 ND 0.00620 0.00400 124 80.0 1 33.0-152 J3 43.1 27 Chlorodibromomethane 0.00500 ND 0.00556 0.00416 111 83.2 1 37.0-149 J3 28.8 27 Chloroethane 0.00500 ND 0.00574 ND 115 72.6 1 10.0-160 J3 45.0 30 Chloroform 0.00500 ND 0.00738 ND 148 91.0 1 29.0-154 J3 47.4 28 Chloromethane 0.00500 ND 0.00396 ND 79.2 47.6 1 10.0-160 J3 49.8 29 2-Chlorotoluene 0.00500 ND 0.00665 0.00410 133 82.0 1 32.0-153 J3 47.4 28 4-Chlorotoluene 0.00500 ND 0.00644 0.00386 129 77.2 1 32.0-150 J3 50.1 28 1,2-Dibromo-3-Chloropropane 0.00500 ND 0.00538 ND 108 85.6 1 22.0-151 22.8 34 1,2-Dibromoethane 0.00500 ND 0.00568 0.00391 114 78.2 1 34.0-147 J3 36.9 27 Dibromomethane 0.00500 ND 0.00695 0.00463 139 92.6 1 30.0-151 J3 40.1 27 1,2-Dichlorobenzene 0.00500 ND 0.00639 0.00441 128 88.2 1 34.0-149 J3 36.7 28 1,3-Dichlorobenzene 0.00500 ND 0.00643 0.00422 129 84.4 1 36.0-146 J3 41.5 27 1,4-Dichlorobenzene 0.00500 ND 0.00643 0.00414 129 82.8 1 35.0-142 J3 43.3 27 Dichlorodifluoromethane 0.00500 ND 0.00635 ND 127 56.4 1 10.0-160 J3 77.0 29 1,1-Dichloroethane 0.00500 ND 0.00655 0.00401 131 80.2 1 25.0-158 J3 48.1 27 1,2-Dichloroethane 0.00500 ND 0.00691 0.00423 138 84.6 1 29.0-151 J3 48.1 27 1,1-Dichloroethene 0.00500 ND 0.00736 0.00433 147 86.6 1 11.0-160 J3 51.8 29 cis-1,2-Dichloroethene 0.00500 ND 0.00727 0.00441 134 77.0 1 10.0-160 J3 49.0 27 trans-1,2-Dichloroethene 0.00500 ND 0.00755 0.00417 151 83.4 1 17.0-153 J3 57.7 27 1,2-Dichloropropane 0.00500 ND 0.00664 0.00402 133 80.4 1 30.0-156 J3 49.2 27 1,1-Dichloropropene 0.00500 ND 0.00723 0.00436 145 87.2 1 25.0-158 J3 49.5 27 1,3-Dichloropropane 0.00500 ND 0.00586 0.00395 117 79.0 1 38.0-147 J3 38.9 27 cis-1,3-Dichloropropene 0.00500 ND 0.00506 0.00334 101 66.8 1 34.0-149 J3 41.0 28 trans-1,3-Dichloropropene 0.00500 ND 0.00500 0.00352 100 70.4 1 32.0-149 J3 34.7 28 2,2-Dichloropropane 0.00500 ND 0.00707 0.00421 141 84.2 1 24.0-152 J3 50.7 29 Di-isopropyl ether 0.00500 ND 0.00636 0.00412 127 82.4 1 21.0-160 J3 42.7 28 Ethylbenzene 0.00500 ND 0.00594 0.00358 119 71.6 1 30.0-155 J3 49.6 27 Hexachloro-1,3-butadiene 0.00500 ND 0.00609 0.00395 122 79.0 1 20.0-154 J3 42.6 34 Isopropylbenzene 0.00500 ND 0.00578 0.00372 116 74.4 1 28.0-157 J3 43.4 27 p-Isopropyltoluene 0.00500 ND 0.00616 0.00392 123 78.4 1 30.0-154 J3 44.4 29 2-Butanone (MEK)0.0250 ND 0.0326 0.0215 130 86.0 1 10.0-160 J3 41.0 32 Methylene Chloride 0.00500 ND 0.00682 ND 136 81.4 1 23.0-144 J3 50.5 28 4-Methyl-2-pentanone (MIBK)0.0250 ND 0.0265 0.0200 106 80.0 1 29.0-160 28.0 29 Methyl tert-butyl ether 0.00500 ND 0.00725 0.00486 145 97.2 1 28.0-150 J3 39.5 29 Naphthalene 0.00500 ND 0.00508 ND 102 71.4 1 12.0-156 34.9 35 n-Propylbenzene 0.00500 ND 0.00636 0.00401 127 80.2 1 31.0-154 J3 45.3 28 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 53 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 53 of 82 QUALITY CONTROL SUMMARYWG2035040 Volatile Organic Compounds (GC/MS) by Method 8260B L1600021-01,02,03,04,05,06 L1599994-07 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1599994-07 04/04/23 03:59 • (MS) R3909731-4 04/04/23 08:39 • (MSD) R3909731-5 04/04/23 09:01 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Styrene 0.00500 ND ND ND 0.000 2.66 1 33.0-155 J6 J3 J6 200 28 1,1,1,2-Tetrachloroethane 0.00500 ND 0.00628 0.00434 126 86.8 1 36.0-151 J3 36.5 29 1,1,2,2-Tetrachloroethane 0.00500 ND 0.00602 0.00445 120 89.0 1 33.0-150 J3 30.0 28 1,1,2-Trichlorotrifluoroethane 0.00500 ND 0.00735 0.00355 147 71.0 1 23.0-160 J3 69.7 30 Tetrachloroethene 0.00500 ND 0.00626 0.00351 125 70.2 1 10.0-160 J3 56.3 27 Toluene 0.00500 ND 0.00619 0.00395 124 79.0 1 26.0-154 J3 44.2 28 1,2,3-Trichlorobenzene 0.00500 ND 0.00568 0.00430 114 86.0 1 17.0-150 27.7 36 1,2,4-Trichlorobenzene 0.00500 ND 0.00540 0.00381 108 76.2 1 24.0-150 J3 34.5 33 1,1,1-Trichloroethane 0.00500 ND 0.00771 0.00455 154 91.0 1 23.0-160 J3 51.5 28 1,1,2-Trichloroethane 0.00500 ND 0.00591 0.00421 118 84.2 1 35.0-147 J3 33.6 27 Trichloroethene 0.00500 ND 0.00691 0.00415 138 83.0 1 10.0-160 J3 49.9 25 Trichlorofluoromethane 0.00500 ND 0.00736 ND 147 78.4 1 17.0-160 J3 61.0 31 1,2,3-Trichloropropane 0.00500 ND 0.00635 0.00458 127 91.6 1 34.0-151 J3 32.4 29 1,2,4-Trimethylbenzene 0.00500 ND 0.00629 0.00398 126 79.6 1 26.0-154 J3 45.0 27 1,2,3-Trimethylbenzene 0.00500 ND 0.00619 0.00411 124 82.2 1 32.0-149 J3 40.4 28 1,3,5-Trimethylbenzene 0.00500 ND 0.00633 0.00401 127 80.2 1 28.0-153 J3 44.9 27 Vinyl chloride 0.00500 ND 0.00619 0.00356 124 71.2 1 10.0-160 J3 53.9 27 Xylenes, Total 0.0150 ND 0.0180 0.0115 120 76.7 1 29.0-154 J3 44.1 28 (S) Toluene-d8 88.7 90.1 80.0-120 (S) 4-Bromofluorobenzene 86.8 88.9 77.0-126 (S) 1,2-Dichloroethane-d4 91.6 98.8 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 54 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 54 of 82 QUALITY CONTROL SUMMARYWG2035565 Volatile Organic Compounds (GC/MS) by Method 8260B L1600021-07,08,09,10,11,12,13,14,15 Method Blank (MB) (MB) R3909592-3 04/04/23 15:04 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acetone U 0.0113 0.0500 Acrolein U 0.00254 0.0500 Acrylonitrile U 0.000671 0.0100 Benzene U 0.0000941 0.00100 Bromobenzene U 0.000118 0.00100 Bromodichloromethane U 0.000136 0.00100 Bromoform U 0.000129 0.00100 Bromomethane U 0.000605 0.00500 n-Butylbenzene U 0.000157 0.00100 sec-Butylbenzene U 0.000125 0.00100 tert-Butylbenzene U 0.000127 0.00100 Carbon tetrachloride U 0.000128 0.00100 Chlorobenzene U 0.000116 0.00100 Chlorodibromomethane U 0.000140 0.00100 Chloroethane U 0.000192 0.00500 Chloroform U 0.000111 0.00500 Chloromethane U 0.000960 0.00250 2-Chlorotoluene U 0.000106 0.00100 4-Chlorotoluene U 0.000114 0.00100 1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1,2-Dibromoethane U 0.000126 0.00100 Dibromomethane U 0.000122 0.00100 1,2-Dichlorobenzene U 0.000107 0.00100 1,3-Dichlorobenzene U 0.000110 0.00100 1,4-Dichlorobenzene U 0.000120 0.00100 Dichlorodifluoromethane U 0.000374 0.00500 1,1-Dichloroethane U 0.000100 0.00100 1,2-Dichloroethane U 0.0000819 0.00100 1,1-Dichloroethene U 0.000188 0.00100 cis-1,2-Dichloroethene U 0.000126 0.00100 trans-1,2-Dichloroethene U 0.000149 0.00100 1,2-Dichloropropane U 0.000149 0.00100 1,1-Dichloropropene U 0.000142 0.00100 1,3-Dichloropropane U 0.000110 0.00100 cis-1,3-Dichloropropene U 0.000111 0.00100 trans-1,3-Dichloropropene U 0.000118 0.00100 2,2-Dichloropropane U 0.000161 0.00100 Di-isopropyl ether U 0.000105 0.00100 Ethylbenzene U 0.000137 0.00100 Hexachloro-1,3-butadiene U 0.000337 0.00100 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 55 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 55 of 82 QUALITY CONTROL SUMMARYWG2035565 Volatile Organic Compounds (GC/MS) by Method 8260B L1600021-07,08,09,10,11,12,13,14,15 Method Blank (MB) (MB) R3909592-3 04/04/23 15:04 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Isopropylbenzene U 0.000105 0.00100 p-Isopropyltoluene U 0.000120 0.00100 2-Butanone (MEK)U 0.00119 0.0100 Methylene Chloride U 0.000430 0.00500 4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100 Methyl tert-butyl ether U 0.000101 0.00100 Naphthalene U 0.00100 0.00500 n-Propylbenzene U 0.0000993 0.00100 Styrene U 0.000118 0.00100 1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 Tetrachloroethene U 0.000300 0.00100 Toluene U 0.000278 0.00100 1,2,3-Trichlorobenzene U 0.000230 0.00100 1,2,4-Trichlorobenzene U 0.000481 0.00100 1,1,1-Trichloroethane U 0.000149 0.00100 1,1,2-Trichloroethane U 0.000158 0.00100 Trichloroethene U 0.000190 0.00100 Trichlorofluoromethane U 0.000160 0.00500 1,2,3-Trichloropropane U 0.000237 0.00250 1,2,4-Trimethylbenzene U 0.000322 0.00100 1,2,3-Trimethylbenzene U 0.000104 0.00100 1,3,5-Trimethylbenzene U 0.000104 0.00100 Vinyl chloride U 0.000234 0.00100 Xylenes, Total U 0.000174 0.00300 (S) Toluene-d8 107 80.0-120 (S) 4-Bromofluorobenzene 106 77.0-126 (S) 1,2-Dichloroethane-d4 98.4 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3909592-1 04/04/23 12:51 • (LCSD) R3909592-2 04/04/23 13:13 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Acetone 0.0250 0.0149 0.0179 59.6 71.6 19.0-160 18.3 27 Acrolein 0.0250 0.0181 0.0213 72.4 85.2 10.0-160 16.2 26 Acrylonitrile 0.0250 0.0178 0.0186 71.2 74.4 55.0-149 4.40 20 Benzene 0.00500 0.00504 0.00500 101 100 70.0-123 0.797 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 56 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 56 of 82 QUALITY CONTROL SUMMARYWG2035565 Volatile Organic Compounds (GC/MS) by Method 8260B L1600021-07,08,09,10,11,12,13,14,15 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3909592-1 04/04/23 12:51 • (LCSD) R3909592-2 04/04/23 13:13 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Bromobenzene 0.00500 0.00391 0.00397 78.2 79.4 73.0-121 1.52 20 Bromodichloromethane 0.00500 0.00515 0.00507 103 101 75.0-120 1.57 20 Bromoform 0.00500 0.00437 0.00441 87.4 88.2 68.0-132 0.911 20 Bromomethane 0.00500 0.00127 0.00137 25.4 27.4 10.0-160 7.58 25 n-Butylbenzene 0.00500 0.00383 0.00389 76.6 77.8 73.0-125 1.55 20 sec-Butylbenzene 0.00500 0.00422 0.00439 84.4 87.8 75.0-125 3.95 20 tert-Butylbenzene 0.00500 0.00426 0.00425 85.2 85.0 76.0-124 0.235 20 Carbon tetrachloride 0.00500 0.00535 0.00560 107 112 68.0-126 4.57 20 Chlorobenzene 0.00500 0.00494 0.00505 98.8 101 80.0-121 2.20 20 Chlorodibromomethane 0.00500 0.00467 0.00492 93.4 98.4 77.0-125 5.21 20 Chloroethane 0.00500 0.00565 0.00546 113 109 47.0-150 3.42 20 Chloroform 0.00500 0.00527 0.00548 105 110 73.0-120 3.91 20 Chloromethane 0.00500 0.00333 0.00333 66.6 66.6 41.0-142 0.000 20 2-Chlorotoluene 0.00500 0.00406 0.00439 81.2 87.8 76.0-123 7.81 20 4-Chlorotoluene 0.00500 0.00391 0.00419 78.2 83.8 75.0-122 6.91 20 1,2-Dibromo-3-Chloropropane 0.00500 0.00384 0.00371 76.8 74.2 58.0-134 3.44 20 1,2-Dibromoethane 0.00500 0.00465 0.00476 93.0 95.2 80.0-122 2.34 20 Dibromomethane 0.00500 0.00515 0.00513 103 103 80.0-120 0.389 20 1,2-Dichlorobenzene 0.00500 0.00425 0.00442 85.0 88.4 79.0-121 3.92 20 1,3-Dichlorobenzene 0.00500 0.00416 0.00432 83.2 86.4 79.0-120 3.77 20 1,4-Dichlorobenzene 0.00500 0.00421 0.00452 84.2 90.4 79.0-120 7.10 20 Dichlorodifluoromethane 0.00500 0.00588 0.00601 118 120 51.0-149 2.19 20 1,1-Dichloroethane 0.00500 0.00439 0.00448 87.8 89.6 70.0-126 2.03 20 1,2-Dichloroethane 0.00500 0.00479 0.00497 95.8 99.4 70.0-128 3.69 20 1,1-Dichloroethene 0.00500 0.00513 0.00495 103 99.0 71.0-124 3.57 20 cis-1,2-Dichloroethene 0.00500 0.00524 0.00509 105 102 73.0-120 2.90 20 trans-1,2-Dichloroethene 0.00500 0.00499 0.00508 99.8 102 73.0-120 1.79 20 1,2-Dichloropropane 0.00500 0.00431 0.00441 86.2 88.2 77.0-125 2.29 20 1,1-Dichloropropene 0.00500 0.00481 0.00514 96.2 103 74.0-126 6.63 20 1,3-Dichloropropane 0.00500 0.00452 0.00471 90.4 94.2 80.0-120 4.12 20 cis-1,3-Dichloropropene 0.00500 0.00441 0.00449 88.2 89.8 80.0-123 1.80 20 trans-1,3-Dichloropropene 0.00500 0.00402 0.00424 80.4 84.8 78.0-124 5.33 20 2,2-Dichloropropane 0.00500 0.00450 0.00466 90.0 93.2 58.0-130 3.49 20 Di-isopropyl ether 0.00500 0.00327 0.00328 65.4 65.6 58.0-138 0.305 20 Ethylbenzene 0.00500 0.00496 0.00493 99.2 98.6 79.0-123 0.607 20 Hexachloro-1,3-butadiene 0.00500 0.00394 0.00507 78.8 101 54.0-138 J3 25.1 20 Isopropylbenzene 0.00500 0.00493 0.00490 98.6 98.0 76.0-127 0.610 20 p-Isopropyltoluene 0.00500 0.00406 0.00445 81.2 89.0 76.0-125 9.17 20 2-Butanone (MEK)0.0250 0.0173 0.0189 69.2 75.6 44.0-160 8.84 20 Methylene Chloride 0.00500 0.00485 0.00477 97.0 95.4 67.0-120 1.66 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 57 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 57 of 82 QUALITY CONTROL SUMMARYWG2035565 Volatile Organic Compounds (GC/MS) by Method 8260B L1600021-07,08,09,10,11,12,13,14,15 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3909592-1 04/04/23 12:51 • (LCSD) R3909592-2 04/04/23 13:13 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 4-Methyl-2-pentanone (MIBK)0.0250 0.0171 0.0179 68.4 71.6 68.0-142 4.57 20 Methyl tert-butyl ether 0.00500 0.00492 0.00495 98.4 99.0 68.0-125 0.608 20 Naphthalene 0.00500 0.00299 0.00356 59.8 71.2 54.0-135 17.4 20 n-Propylbenzene 0.00500 0.00417 0.00426 83.4 85.2 77.0-124 2.14 20 Styrene 0.00500 0.00439 0.00458 87.8 91.6 73.0-130 4.24 20 1,1,1,2-Tetrachloroethane 0.00500 0.00505 0.00509 101 102 75.0-125 0.789 20 1,1,2,2-Tetrachloroethane 0.00500 0.00390 0.00424 78.0 84.8 65.0-130 8.35 20 1,1,2-Trichlorotrifluoroethane 0.00500 0.00507 0.00548 101 110 69.0-132 7.77 20 Tetrachloroethene 0.00500 0.00506 0.00491 101 98.2 72.0-132 3.01 20 Toluene 0.00500 0.00486 0.00491 97.2 98.2 79.0-120 1.02 20 1,2,3-Trichlorobenzene 0.00500 0.00399 0.00453 79.8 90.6 50.0-138 12.7 20 1,2,4-Trichlorobenzene 0.00500 0.00382 0.00437 76.4 87.4 57.0-137 13.4 20 1,1,1-Trichloroethane 0.00500 0.00548 0.00530 110 106 73.0-124 3.34 20 1,1,2-Trichloroethane 0.00500 0.00487 0.00487 97.4 97.4 80.0-120 0.000 20 Trichloroethene 0.00500 0.00529 0.00541 106 108 78.0-124 2.24 20 Trichlorofluoromethane 0.00500 0.00608 0.00605 122 121 59.0-147 0.495 20 1,2,3-Trichloropropane 0.00500 0.00454 0.00449 90.8 89.8 73.0-130 1.11 20 1,2,4-Trimethylbenzene 0.00500 0.00418 0.00428 83.6 85.6 76.0-121 2.36 20 1,2,3-Trimethylbenzene 0.00500 0.00426 0.00455 85.2 91.0 77.0-120 6.58 20 1,3,5-Trimethylbenzene 0.00500 0.00408 0.00442 81.6 88.4 76.0-122 8.00 20 Vinyl chloride 0.00500 0.00445 0.00451 89.0 90.2 67.0-131 1.34 20 Xylenes, Total 0.0150 0.0145 0.0152 96.7 101 79.0-123 4.71 20 (S) Toluene-d8 103 101 80.0-120 (S) 4-Bromofluorobenzene 105 108 77.0-126 (S) 1,2-Dichloroethane-d4 103 97.9 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 58 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 58 of 82 QUALITY CONTROL SUMMARYWG2036381 Volatile Organic Compounds (GC/MS) by Method 8260B L1600021-10,11,12,13,14,15 Method Blank (MB) (MB) R3910230-3 04/05/23 19:00 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,1-Dichloroethene U 0.000188 0.00100 (S) Toluene-d8 108 80.0-120 (S) 4-Bromofluorobenzene 101 77.0-126 (S) 1,2-Dichloroethane-d4 113 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3910230-1 04/05/23 18:00 • (LCSD) R3910230-2 04/05/23 18:20 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 1,1-Dichloroethene 0.00500 0.00513 0.00488 103 97.6 71.0-124 5.00 20 (S) Toluene-d8 107 109 80.0-120 (S) 4-Bromofluorobenzene 106 108 77.0-126 (S) 1,2-Dichloroethane-d4 116 110 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 59 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 59 of 82 QUALITY CONTROL SUMMARYWG2036549 Volatile Organic Compounds (GC/MS) by Method 8260B L1600021-03,04,05 Method Blank (MB) (MB) R3910214-3 04/05/23 19:44 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,1-Dichloroethene U 0.000188 0.00100 (S) Toluene-d8 113 80.0-120 (S) 4-Bromofluorobenzene 85.3 77.0-126 (S) 1,2-Dichloroethane-d4 101 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3910214-1 04/05/23 17:25 • (LCSD) R3910214-2 04/05/23 19:03 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 1,1-Dichloroethene 0.00500 0.00458 0.00438 91.6 87.6 71.0-124 4.46 20 (S) Toluene-d8 110 112 80.0-120 (S) 4-Bromofluorobenzene 89.4 93.1 77.0-126 (S) 1,2-Dichloroethane-d4 98.9 96.5 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 60 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 60 of 82 QUALITY CONTROL SUMMARYWG2034565 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1600021-01,03,04,06 Method Blank (MB) (MB) R3909981-2 04/05/23 16:55 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acenaphthene U 0.0000886 0.00100 Acenaphthylene U 0.0000921 0.00100 Anthracene U 0.0000804 0.00100 Benzidine U 0.00374 0.0100 Benzo(a)anthracene U 0.000199 0.00100 Benzo(b)fluoranthene U 0.000130 0.00100 Benzo(k)fluoranthene U 0.000120 0.00100 Benzo(g,h,i)perylene U 0.000121 0.00100 Benzo(a)pyrene U 0.0000381 0.00100 Bis(2-chlorethoxy)methane U 0.000116 0.0100 Bis(2-chloroethyl)ether U 0.000137 0.0100 2,2-Oxybis(1-Chloropropane)U 0.000210 0.0100 4-Bromophenyl-phenylether U 0.0000877 0.0100 2-Chloronaphthalene U 0.0000648 0.00100 4-Chlorophenyl-phenylether U 0.0000926 0.0100 Chrysene U 0.000130 0.00100 Dibenz(a,h)anthracene U 0.0000644 0.00100 1,2-Dichlorobenzene U 0.0000713 0.0100 1,3-Dichlorobenzene U 0.000132 0.0100 1,4-Dichlorobenzene U 0.0000942 0.0100 3,3-Dichlorobenzidine U 0.000212 0.0100 2,4-Dinitrotoluene U 0.0000983 0.0100 2,6-Dinitrotoluene U 0.000250 0.0100 Fluoranthene U 0.000102 0.00100 Fluorene U 0.0000844 0.00100 Hexachlorobenzene U 0.0000755 0.00100 Hexachloro-1,3-butadiene U 0.0000968 0.0100 Hexachlorocyclopentadiene U 0.0000598 0.0100 Hexachloroethane U 0.000127 0.0100 Indeno(1,2,3-cd)pyrene U 0.000279 0.00100 Isophorone U 0.000143 0.0100 Naphthalene U 0.000159 0.00100 Nitrobenzene U 0.000297 0.0100 n-Nitrosodimethylamine U 0.000998 0.0100 n-Nitrosodiphenylamine U 0.00237 0.0100 n-Nitrosodi-n-propylamine U 0.000261 0.0100 Phenanthrene U 0.000112 0.00100 Benzylbutyl phthalate U 0.000765 0.00300 Bis(2-ethylhexyl)phthalate U 0.000895 0.00300 Di-n-butyl phthalate U 0.000453 0.00300 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 61 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 61 of 82 QUALITY CONTROL SUMMARYWG2034565 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1600021-01,03,04,06 Method Blank (MB) (MB) R3909981-2 04/05/23 16:55 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Diethyl phthalate U 0.000287 0.00300 Dimethyl phthalate U 0.000260 0.00300 Di-n-octyl phthalate U 0.000932 0.00300 Pyrene U 0.000107 0.00100 1,2,4-Trichlorobenzene U 0.0000698 0.0100 4-Chloro-3-methylphenol U 0.000131 0.0100 2-Chlorophenol U 0.000133 0.0100 2,4-Dichlorophenol U 0.000102 0.0100 2,4-Dimethylphenol U 0.0000636 0.0100 4,6-Dinitro-2-methylphenol U 0.00112 0.0100 2,4-Dinitrophenol U 0.00593 0.0100 2-Nitrophenol U 0.000117 0.0100 4-Nitrophenol U 0.000143 0.0100 Pentachlorophenol U 0.000313 0.0100 Phenol U 0.00433 0.0100 2,4,6-Trichlorophenol U 0.000100 0.0100 (S) 2-Fluorophenol 19.1 10.0-120 (S) Phenol-d5 12.4 10.0-120 (S) Nitrobenzene-d5 41.9 10.0-127 (S) 2-Fluorobiphenyl 42.2 10.0-130 (S) 2,4,6-Tribromophenol 34.6 10.0-155 (S) p-Terphenyl-d14 49.2 10.0-128 Laboratory Control Sample (LCS) (LCS) R3909981-1 04/05/23 16:35 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Acenaphthene 0.0500 0.0305 61.0 41.0-120 Acenaphthylene 0.0500 0.0332 66.4 43.0-120 Anthracene 0.0500 0.0330 66.0 45.0-120 Benzidine 0.100 0.00584 5.84 10.0-120 J4 Benzo(a)anthracene 0.0500 0.0327 65.4 47.0-120 Benzo(b)fluoranthene 0.0500 0.0344 68.8 46.0-120 Benzo(k)fluoranthene 0.0500 0.0317 63.4 46.0-120 Benzo(g,h,i)perylene 0.0500 0.0353 70.6 48.0-121 Benzo(a)pyrene 0.0500 0.0362 72.4 47.0-120 Bis(2-chlorethoxy)methane 0.0500 0.0324 64.8 33.0-120 Bis(2-chloroethyl)ether 0.0500 0.0362 72.4 23.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 62 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 62 of 82 QUALITY CONTROL SUMMARYWG2034565 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1600021-01,03,04,06 Laboratory Control Sample (LCS) (LCS) R3909981-1 04/05/23 16:35 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2,2-Oxybis(1-Chloropropane)0.0500 0.0325 65.0 28.0-120 4-Bromophenyl-phenylether 0.0500 0.0298 59.6 45.0-120 2-Chloronaphthalene 0.0500 0.0299 59.8 37.0-120 4-Chlorophenyl-phenylether 0.0500 0.0304 60.8 44.0-120 Chrysene 0.0500 0.0346 69.2 48.0-120 Dibenz(a,h)anthracene 0.0500 0.0344 68.8 47.0-120 1,2-Dichlorobenzene 0.0500 0.0297 59.4 20.0-120 1,3-Dichlorobenzene 0.0500 0.0287 57.4 17.0-120 1,4-Dichlorobenzene 0.0500 0.0290 58.0 18.0-120 3,3-Dichlorobenzidine 0.100 0.0427 42.7 44.0-120 J4 2,4-Dinitrotoluene 0.0500 0.0349 69.8 49.0-124 2,6-Dinitrotoluene 0.0500 0.0317 63.4 46.0-120 Fluoranthene 0.0500 0.0338 67.6 51.0-120 Fluorene 0.0500 0.0318 63.6 47.0-120 Hexachlorobenzene 0.0500 0.0279 55.8 44.0-120 Hexachloro-1,3-butadiene 0.0500 0.0260 52.0 19.0-120 Hexachlorocyclopentadiene 0.0500 0.0162 32.4 15.0-120 Hexachloroethane 0.0500 0.0299 59.8 15.0-120 Indeno(1,2,3-cd)pyrene 0.0500 0.0326 65.2 49.0-122 Isophorone 0.0500 0.0328 65.6 36.0-120 Naphthalene 0.0500 0.0278 55.6 27.0-120 Nitrobenzene 0.0500 0.0312 62.4 27.0-120 n-Nitrosodimethylamine 0.0500 0.0188 37.6 10.0-120 n-Nitrosodiphenylamine 0.0500 0.0312 62.4 47.0-120 n-Nitrosodi-n-propylamine 0.0500 0.0363 72.6 31.0-120 Phenanthrene 0.0500 0.0320 64.0 46.0-120 Benzylbutyl phthalate 0.0500 0.0390 78.0 43.0-121 Bis(2-ethylhexyl)phthalate 0.0500 0.0393 78.6 43.0-122 Di-n-butyl phthalate 0.0500 0.0372 74.4 49.0-121 Diethyl phthalate 0.0500 0.0328 65.6 48.0-122 Dimethyl phthalate 0.0500 0.0322 64.4 48.0-120 Di-n-octyl phthalate 0.0500 0.0367 73.4 42.0-125 Pyrene 0.0500 0.0338 67.6 47.0-120 1,2,4-Trichlorobenzene 0.0500 0.0265 53.0 24.0-120 4-Chloro-3-methylphenol 0.0500 0.0240 48.0 40.0-120 2-Chlorophenol 0.0500 0.0216 43.2 25.0-120 2,4-Dichlorophenol 0.0500 0.0245 49.0 36.0-120 2,4-Dimethylphenol 0.0500 0.0226 45.2 33.0-120 4,6-Dinitro-2-methylphenol 0.0500 0.0397 79.4 38.0-138 2,4-Dinitrophenol 0.0500 0.0368 73.6 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 63 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 63 of 82 QUALITY CONTROL SUMMARYWG2034565 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1600021-01,03,04,06 Laboratory Control Sample (LCS) (LCS) R3909981-1 04/05/23 16:35 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2-Nitrophenol 0.0500 0.0293 58.6 31.0-120 4-Nitrophenol 0.0500 0.00960 19.2 10.0-120 Pentachlorophenol 0.0500 0.0288 57.6 23.0-120 Phenol 0.0500 0.0109 21.8 10.0-120 2,4,6-Trichlorophenol 0.0500 0.0299 59.8 42.0-120 (S) 2-Fluorophenol 26.2 10.0-120 (S) Phenol-d5 19.7 10.0-120 (S) Nitrobenzene-d5 58.1 10.0-127 (S) 2-Fluorobiphenyl 58.6 10.0-130 (S) 2,4,6-Tribromophenol 55.0 10.0-155 (S) p-Terphenyl-d14 62.9 10.0-128 L1600617-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1600617-01 04/06/23 00:11 • (MS) R3910031-1 04/06/23 00:32 • (MSD) R3910031-2 04/06/23 00:54 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Acenaphthene 0.0500 ND 0.0222 0.0240 44.4 48.0 1 28.0-120 7.79 25 Acenaphthylene 0.0500 ND 0.0247 0.0261 49.4 52.2 1 31.0-121 5.51 25 Anthracene 0.0500 ND 0.0216 0.0239 43.2 47.8 1 36.0-120 10.1 23 Benzidine 0.100 ND ND ND 0.000 0.000 1 10.0-120 J6 J6 0.000 37 Benzo(a)anthracene 0.0500 ND 0.0259 0.0276 51.8 55.2 1 39.0-120 6.36 23 Benzo(b)fluoranthene 0.0500 ND 0.0258 0.0289 51.6 57.8 1 37.0-120 11.3 23 Benzo(k)fluoranthene 0.0500 ND 0.0242 0.0273 48.4 54.6 1 37.0-120 12.0 26 Benzo(g,h,i)perylene 0.0500 ND 0.0214 0.0240 42.8 48.0 1 37.0-123 11.5 25 Benzo(a)pyrene 0.0500 ND 0.0259 0.0290 51.8 58.0 1 37.0-120 11.3 24 Bis(2-chlorethoxy)methane 0.0500 ND 0.0207 0.0229 41.4 45.8 1 17.0-120 10.1 31 Bis(2-chloroethyl)ether 0.0500 ND 0.0221 0.0231 44.2 46.2 1 14.0-120 4.42 33 2,2-Oxybis(1-Chloropropane)0.0500 ND 0.0228 0.0240 45.6 48.0 1 18.0-120 5.13 34 4-Bromophenyl-phenylether 0.0500 ND 0.0220 0.0245 44.0 49.0 1 37.0-120 10.8 24 2-Chloronaphthalene 0.0500 ND 0.0231 0.0244 46.2 48.8 1 29.0-120 5.47 28 4-Chlorophenyl-phenylether 0.0500 ND 0.0215 0.0239 43.0 47.8 1 36.0-120 10.6 23 Chrysene 0.0500 ND 0.0253 0.0281 50.6 56.2 1 38.0-120 10.5 23 Dibenz(a,h)anthracene 0.0500 ND 0.0218 0.0246 43.6 49.2 1 36.0-121 12.1 24 1,2-Dichlorobenzene 0.0500 ND 0.0222 0.0231 44.4 46.2 1 18.0-120 3.97 40 1,3-Dichlorobenzene 0.0500 ND 0.0217 0.0223 43.4 44.6 1 15.0-120 2.73 40 1,4-Dichlorobenzene 0.0500 ND 0.0219 0.0226 43.8 45.2 1 17.0-120 3.15 40 3,3-Dichlorobenzidine 0.100 ND ND ND 2.33 2.38 1 10.0-134 J6 J6 2.12 30 2,4-Dinitrotoluene 0.0500 ND 0.0235 0.0265 47.0 53.0 1 39.0-125 12.0 25 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 64 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 64 of 82 QUALITY CONTROL SUMMARYWG2034565 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1600021-01,03,04,06 L1600617-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1600617-01 04/06/23 00:11 • (MS) R3910031-1 04/06/23 00:32 • (MSD) R3910031-2 04/06/23 00:54 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% 2,6-Dinitrotoluene 0.0500 ND 0.0224 0.0243 44.8 48.6 1 36.0-120 8.14 27 Fluoranthene 0.0500 ND 0.0222 0.0247 44.4 49.4 1 41.0-121 10.7 22 Fluorene 0.0500 ND 0.0218 0.0241 43.6 48.2 1 37.0-120 10.0 24 Hexachlorobenzene 0.0500 ND 0.0226 0.0247 45.2 49.4 1 35.0-122 8.88 24 Hexachloro-1,3-butadiene 0.0500 ND 0.0210 0.0226 42.0 45.2 1 12.0-120 7.34 34 Hexachlorocyclopentadiene 0.0500 ND 0.0157 0.0170 31.4 34.0 1 10.0-120 7.95 33 Hexachloroethane 0.0500 ND 0.0218 0.0222 43.6 44.4 1 10.0-120 1.82 40 Indeno(1,2,3-cd)pyrene 0.0500 ND 0.0208 0.0232 41.6 46.4 1 38.0-125 10.9 24 Isophorone 0.0500 ND 0.0219 0.0247 43.8 49.4 1 21.0-120 12.0 27 Naphthalene 0.0500 ND 0.0205 0.0220 41.0 44.0 1 10.0-120 7.06 31 Nitrobenzene 0.0500 ND 0.0251 0.0268 50.2 53.6 1 12.0-120 6.55 30 n-Nitrosodimethylamine 0.0500 ND 0.0132 0.0149 26.4 29.8 1 10.0-120 12.1 40 n-Nitrosodiphenylamine 0.0500 ND 0.0227 0.0256 45.4 51.2 1 37.0-120 12.0 24 n-Nitrosodi-n-propylamine 0.0500 ND 0.0220 0.0238 44.0 47.6 1 16.0-120 7.86 30 Phenanthrene 0.0500 ND 0.0230 0.0252 46.0 50.4 1 33.0-120 9.13 22 Benzylbutyl phthalate 0.0500 ND 0.0321 0.0347 64.2 69.4 1 34.0-126 7.78 24 Bis(2-ethylhexyl)phthalate 0.0500 ND 0.0296 0.0333 59.2 66.6 1 33.0-126 11.8 25 Di-n-butyl phthalate 0.0500 ND 0.0253 0.0289 50.6 57.8 1 35.0-128 13.3 23 Diethyl phthalate 0.0500 ND 0.0233 0.0262 46.6 52.4 1 39.0-125 11.7 24 Dimethyl phthalate 0.0500 ND 0.0232 0.0258 46.4 51.6 1 37.0-120 10.6 24 Di-n-octyl phthalate 0.0500 ND 0.0278 0.0303 55.6 60.6 1 25.0-135 8.61 26 Pyrene 0.0500 ND 0.0285 0.0308 57.0 61.6 1 39.0-120 7.76 22 1,2,4-Trichlorobenzene 0.0500 ND 0.0205 0.0221 41.0 44.2 1 15.0-120 7.51 31 4-Chloro-3-methylphenol 0.0500 ND 0.0187 0.0237 37.4 47.4 1 26.0-120 23.6 27 2-Chlorophenol 0.0500 ND 0.0175 0.0197 35.0 39.4 1 18.0-120 11.8 34 2,4-Dichlorophenol 0.0500 ND 0.0190 0.0225 38.0 45.0 1 19.0-120 16.9 27 2,4-Dimethylphenol 0.0500 ND 0.0177 0.0210 35.4 42.0 1 15.0-120 17.1 28 4,6-Dinitro-2-methylphenol 0.0500 ND 0.0203 0.0231 40.6 46.2 1 10.0-144 12.9 39 2,4-Dinitrophenol 0.0500 ND 0.0196 0.0231 39.2 46.2 1 10.0-120 16.4 40 2-Nitrophenol 0.0500 ND 0.0213 0.0246 42.6 49.2 1 20.0-120 14.4 30 4-Nitrophenol 0.0500 ND 0.0566 0.0622 113 124 1 10.0-120 J5 9.43 40 Pentachlorophenol 0.0500 ND 0.0163 0.0193 32.6 38.6 1 10.0-128 16.9 37 Phenol 0.0500 ND ND ND 16.5 19.0 1 10.0-120 13.9 40 2,4,6-Trichlorophenol 0.0500 ND 0.0220 0.0247 44.0 49.4 1 26.0-120 11.6 31 (S) 2-Fluorophenol 23.1 25.8 10.0-120 (S) Phenol-d5 14.0 16.1 10.0-120 (S) Nitrobenzene-d5 40.8 46.2 10.0-127 (S) 2-Fluorobiphenyl 46.4 48.6 10.0-130 (S) 2,4,6-Tribromophenol 40.0 47.3 10.0-155 (S) p-Terphenyl-d14 51.0 57.2 10.0-128 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 65 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 65 of 82 QUALITY CONTROL SUMMARYWG2035185 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1600021-07,09 Method Blank (MB) (MB) R3909423-2 04/05/23 01:01 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acenaphthene U 0.0000886 0.00100 Acenaphthylene U 0.0000921 0.00100 Anthracene U 0.0000804 0.00100 Benzidine U 0.00374 0.0100 Benzo(a)anthracene U 0.000199 0.00100 Benzo(b)fluoranthene U 0.000130 0.00100 Benzo(k)fluoranthene U 0.000120 0.00100 Benzo(g,h,i)perylene U 0.000121 0.00100 Benzo(a)pyrene 0.0000931 J 0.0000381 0.00100 Bis(2-chlorethoxy)methane U 0.000116 0.0100 Bis(2-chloroethyl)ether U 0.000137 0.0100 2,2-Oxybis(1-Chloropropane)U 0.000210 0.0100 4-Bromophenyl-phenylether U 0.0000877 0.0100 2-Chloronaphthalene U 0.0000648 0.00100 4-Chlorophenyl-phenylether U 0.0000926 0.0100 Chrysene U 0.000130 0.00100 Dibenz(a,h)anthracene U 0.0000644 0.00100 1,2-Dichlorobenzene U 0.0000713 0.0100 1,3-Dichlorobenzene U 0.000132 0.0100 1,4-Dichlorobenzene U 0.0000942 0.0100 3,3-Dichlorobenzidine U 0.000212 0.0100 2,4-Dinitrotoluene U 0.0000983 0.0100 2,6-Dinitrotoluene U 0.000250 0.0100 Fluoranthene U 0.000102 0.00100 Fluorene U 0.0000844 0.00100 Hexachlorobenzene U 0.0000755 0.00100 Hexachloro-1,3-butadiene U 0.0000968 0.0100 Hexachlorocyclopentadiene U 0.0000598 0.0100 Hexachloroethane U 0.000127 0.0100 Indeno(1,2,3-cd)pyrene U 0.000279 0.00100 Isophorone U 0.000143 0.0100 Naphthalene U 0.000159 0.00100 Nitrobenzene U 0.000297 0.0100 n-Nitrosodimethylamine U 0.000998 0.0100 n-Nitrosodiphenylamine U 0.00237 0.0100 n-Nitrosodi-n-propylamine U 0.000261 0.0100 Phenanthrene U 0.000112 0.00100 Benzylbutyl phthalate U 0.000765 0.00300 Bis(2-ethylhexyl)phthalate U 0.000895 0.00300 Di-n-butyl phthalate U 0.000453 0.00300 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 66 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 66 of 82 QUALITY CONTROL SUMMARYWG2035185 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1600021-07,09 Method Blank (MB) (MB) R3909423-2 04/05/23 01:01 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Diethyl phthalate U 0.000287 0.00300 Dimethyl phthalate U 0.000260 0.00300 Di-n-octyl phthalate U 0.000932 0.00300 Pyrene U 0.000107 0.00100 1,2,4-Trichlorobenzene U 0.0000698 0.0100 4-Chloro-3-methylphenol U 0.000131 0.0100 2-Chlorophenol U 0.000133 0.0100 2,4-Dichlorophenol U 0.000102 0.0100 2,4-Dimethylphenol U 0.0000636 0.0100 4,6-Dinitro-2-methylphenol U 0.00112 0.0100 2,4-Dinitrophenol U 0.00593 0.0100 2-Nitrophenol U 0.000117 0.0100 4-Nitrophenol U 0.000143 0.0100 Pentachlorophenol U 0.000313 0.0100 Phenol U 0.00433 0.0100 2,4,6-Trichlorophenol U 0.000100 0.0100 (S) 2-Fluorophenol 26.8 10.0-120 (S) Phenol-d5 19.1 10.0-120 (S) Nitrobenzene-d5 56.4 10.0-127 (S) 2-Fluorobiphenyl 54.0 10.0-130 (S) 2,4,6-Tribromophenol 46.7 10.0-155 (S) p-Terphenyl-d14 68.0 10.0-128 Laboratory Control Sample (LCS) (LCS) R3909423-1 04/05/23 00:40 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Acenaphthene 0.0500 0.0345 69.0 41.0-120 Acenaphthylene 0.0500 0.0383 76.6 43.0-120 Anthracene 0.0500 0.0365 73.0 45.0-120 Benzidine 0.100 0.00519 5.19 10.0-120 J4 Benzo(a)anthracene 0.0500 0.0403 80.6 47.0-120 Benzo(b)fluoranthene 0.0500 0.0449 89.8 46.0-120 Benzo(k)fluoranthene 0.0500 0.0403 80.6 46.0-120 Benzo(g,h,i)perylene 0.0500 0.0326 65.2 48.0-121 Benzo(a)pyrene 0.0500 0.0423 84.6 47.0-120 Bis(2-chlorethoxy)methane 0.0500 0.0316 63.2 33.0-120 Bis(2-chloroethyl)ether 0.0500 0.0343 68.6 23.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 67 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 67 of 82 QUALITY CONTROL SUMMARYWG2035185 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1600021-07,09 Laboratory Control Sample (LCS) (LCS) R3909423-1 04/05/23 00:40 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2,2-Oxybis(1-Chloropropane)0.0500 0.0355 71.0 28.0-120 4-Bromophenyl-phenylether 0.0500 0.0349 69.8 45.0-120 2-Chloronaphthalene 0.0500 0.0348 69.6 37.0-120 4-Chlorophenyl-phenylether 0.0500 0.0354 70.8 44.0-120 Chrysene 0.0500 0.0408 81.6 48.0-120 Dibenz(a,h)anthracene 0.0500 0.0345 69.0 47.0-120 1,2-Dichlorobenzene 0.0500 0.0334 66.8 20.0-120 1,3-Dichlorobenzene 0.0500 0.0307 61.4 17.0-120 1,4-Dichlorobenzene 0.0500 0.0320 64.0 18.0-120 3,3-Dichlorobenzidine 0.100 0.0645 64.5 44.0-120 2,4-Dinitrotoluene 0.0500 0.0403 80.6 49.0-124 2,6-Dinitrotoluene 0.0500 0.0368 73.6 46.0-120 Fluoranthene 0.0500 0.0353 70.6 51.0-120 Fluorene 0.0500 0.0352 70.4 47.0-120 Hexachlorobenzene 0.0500 0.0362 72.4 44.0-120 Hexachloro-1,3-butadiene 0.0500 0.0286 57.2 19.0-120 Hexachlorocyclopentadiene 0.0500 0.0159 31.8 15.0-120 Hexachloroethane 0.0500 0.0319 63.8 15.0-120 Indeno(1,2,3-cd)pyrene 0.0500 0.0309 61.8 49.0-122 Isophorone 0.0500 0.0334 66.8 36.0-120 Naphthalene 0.0500 0.0304 60.8 27.0-120 Nitrobenzene 0.0500 0.0297 59.4 27.0-120 n-Nitrosodimethylamine 0.0500 0.0216 43.2 10.0-120 n-Nitrosodiphenylamine 0.0500 0.0335 67.0 47.0-120 n-Nitrosodi-n-propylamine 0.0500 0.0379 75.8 31.0-120 Phenanthrene 0.0500 0.0364 72.8 46.0-120 Benzylbutyl phthalate 0.0500 0.0514 103 43.0-121 Bis(2-ethylhexyl)phthalate 0.0500 0.0526 105 43.0-122 Di-n-butyl phthalate 0.0500 0.0426 85.2 49.0-121 Diethyl phthalate 0.0500 0.0405 81.0 48.0-122 Dimethyl phthalate 0.0500 0.0388 77.6 48.0-120 Di-n-octyl phthalate 0.0500 0.0440 88.0 42.0-125 Pyrene 0.0500 0.0462 92.4 47.0-120 1,2,4-Trichlorobenzene 0.0500 0.0282 56.4 24.0-120 4-Chloro-3-methylphenol 0.0500 0.0290 58.0 40.0-120 2-Chlorophenol 0.0500 0.0262 52.4 25.0-120 2,4-Dichlorophenol 0.0500 0.0293 58.6 36.0-120 2,4-Dimethylphenol 0.0500 0.0285 57.0 33.0-120 4,6-Dinitro-2-methylphenol 0.0500 0.0362 72.4 38.0-138 2,4-Dinitrophenol 0.0500 0.0343 68.6 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 68 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 68 of 82 QUALITY CONTROL SUMMARYWG2035185 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1600021-07,09 Laboratory Control Sample (LCS) (LCS) R3909423-1 04/05/23 00:40 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2-Nitrophenol 0.0500 0.0309 61.8 31.0-120 4-Nitrophenol 0.0500 0.0244 48.8 10.0-120 Pentachlorophenol 0.0500 0.0320 64.0 23.0-120 Phenol 0.0500 0.0152 30.4 10.0-120 2,4,6-Trichlorophenol 0.0500 0.0353 70.6 42.0-120 (S) 2-Fluorophenol 35.6 10.0-120 (S) Phenol-d5 26.8 10.0-120 (S) Nitrobenzene-d5 64.1 10.0-127 (S) 2-Fluorobiphenyl 73.0 10.0-130 (S) 2,4,6-Tribromophenol 74.0 10.0-155 (S) p-Terphenyl-d14 90.8 10.0-128 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 69 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 69 of 82 QUALITY CONTROL SUMMARYWG2035893 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1600021-10,13 Method Blank (MB) (MB) R3909982-2 04/05/23 17:38 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acenaphthene U 0.0000886 0.00100 Acenaphthylene U 0.0000921 0.00100 Anthracene U 0.0000804 0.00100 Benzidine U 0.00374 0.0100 Benzo(a)anthracene U 0.000199 0.00100 Benzo(b)fluoranthene U 0.000130 0.00100 Benzo(k)fluoranthene U 0.000120 0.00100 Benzo(g,h,i)perylene U 0.000121 0.00100 Benzo(a)pyrene U 0.0000381 0.00100 Bis(2-chlorethoxy)methane U 0.000116 0.0100 Bis(2-chloroethyl)ether U 0.000137 0.0100 2,2-Oxybis(1-Chloropropane)U 0.000210 0.0100 4-Bromophenyl-phenylether U 0.0000877 0.0100 2-Chloronaphthalene U 0.0000648 0.00100 4-Chlorophenyl-phenylether U 0.0000926 0.0100 Chrysene U 0.000130 0.00100 Dibenz(a,h)anthracene U 0.0000644 0.00100 1,2-Dichlorobenzene U 0.0000713 0.0100 1,3-Dichlorobenzene U 0.000132 0.0100 1,4-Dichlorobenzene U 0.0000942 0.0100 3,3-Dichlorobenzidine U 0.000212 0.0100 2,4-Dinitrotoluene U 0.0000983 0.0100 2,6-Dinitrotoluene U 0.000250 0.0100 Fluoranthene U 0.000102 0.00100 Fluorene U 0.0000844 0.00100 Hexachlorobenzene U 0.0000755 0.00100 Hexachloro-1,3-butadiene U 0.0000968 0.0100 Hexachlorocyclopentadiene U 0.0000598 0.0100 Hexachloroethane U 0.000127 0.0100 Indeno(1,2,3-cd)pyrene U 0.000279 0.00100 Isophorone U 0.000143 0.0100 Naphthalene U 0.000159 0.00100 Nitrobenzene U 0.000297 0.0100 n-Nitrosodimethylamine U 0.000998 0.0100 n-Nitrosodiphenylamine U 0.00237 0.0100 n-Nitrosodi-n-propylamine U 0.000261 0.0100 Phenanthrene U 0.000112 0.00100 Benzylbutyl phthalate U 0.000765 0.00300 Bis(2-ethylhexyl)phthalate U 0.000895 0.00300 Di-n-butyl phthalate U 0.000453 0.00300 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 70 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 70 of 82 QUALITY CONTROL SUMMARYWG2035893 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1600021-10,13 Method Blank (MB) (MB) R3909982-2 04/05/23 17:38 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Diethyl phthalate U 0.000287 0.00300 Dimethyl phthalate U 0.000260 0.00300 Di-n-octyl phthalate U 0.000932 0.00300 Pyrene U 0.000107 0.00100 1,2,4-Trichlorobenzene U 0.0000698 0.0100 4-Chloro-3-methylphenol U 0.000131 0.0100 2-Chlorophenol U 0.000133 0.0100 2,4-Dichlorophenol U 0.000102 0.0100 2,4-Dimethylphenol U 0.0000636 0.0100 4,6-Dinitro-2-methylphenol U 0.00112 0.0100 2,4-Dinitrophenol U 0.00593 0.0100 2-Nitrophenol U 0.000117 0.0100 4-Nitrophenol U 0.000143 0.0100 Pentachlorophenol U 0.000313 0.0100 Phenol U 0.00433 0.0100 2,4,6-Trichlorophenol U 0.000100 0.0100 (S) 2-Fluorophenol 29.7 10.0-120 (S) Phenol-d5 19.7 10.0-120 (S) Nitrobenzene-d5 60.6 10.0-127 (S) 2-Fluorobiphenyl 55.0 10.0-130 (S) 2,4,6-Tribromophenol 46.6 10.0-155 (S) p-Terphenyl-d14 63.1 10.0-128 Laboratory Control Sample (LCS) (LCS) R3909982-1 04/05/23 17:17 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Acenaphthene 0.0500 0.0246 49.2 41.0-120 Acenaphthylene 0.0500 0.0261 52.2 43.0-120 Anthracene 0.0500 0.0267 53.4 45.0-120 Benzidine 0.100 0.00573 5.73 10.0-120 J4 Benzo(a)anthracene 0.0500 0.0275 55.0 47.0-120 Benzo(b)fluoranthene 0.0500 0.0289 57.8 46.0-120 Benzo(k)fluoranthene 0.0500 0.0279 55.8 46.0-120 Benzo(g,h,i)perylene 0.0500 0.0279 55.8 48.0-121 Benzo(a)pyrene 0.0500 0.0300 60.0 47.0-120 Bis(2-chlorethoxy)methane 0.0500 0.0262 52.4 33.0-120 Bis(2-chloroethyl)ether 0.0500 0.0275 55.0 23.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 71 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 71 of 82 QUALITY CONTROL SUMMARYWG2035893 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1600021-10,13 Laboratory Control Sample (LCS) (LCS) R3909982-1 04/05/23 17:17 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2,2-Oxybis(1-Chloropropane)0.0500 0.0245 49.0 28.0-120 4-Bromophenyl-phenylether 0.0500 0.0244 48.8 45.0-120 2-Chloronaphthalene 0.0500 0.0231 46.2 37.0-120 4-Chlorophenyl-phenylether 0.0500 0.0252 50.4 44.0-120 Chrysene 0.0500 0.0290 58.0 48.0-120 Dibenz(a,h)anthracene 0.0500 0.0289 57.8 47.0-120 1,2-Dichlorobenzene 0.0500 0.0231 46.2 20.0-120 1,3-Dichlorobenzene 0.0500 0.0225 45.0 17.0-120 1,4-Dichlorobenzene 0.0500 0.0230 46.0 18.0-120 3,3-Dichlorobenzidine 0.100 0.0378 37.8 44.0-120 J4 2,4-Dinitrotoluene 0.0500 0.0301 60.2 49.0-124 2,6-Dinitrotoluene 0.0500 0.0267 53.4 46.0-120 Fluoranthene 0.0500 0.0283 56.6 51.0-120 Fluorene 0.0500 0.0268 53.6 47.0-120 Hexachlorobenzene 0.0500 0.0235 47.0 44.0-120 Hexachloro-1,3-butadiene 0.0500 0.0208 41.6 19.0-120 Hexachlorocyclopentadiene 0.0500 0.0130 26.0 15.0-120 Hexachloroethane 0.0500 0.0229 45.8 15.0-120 Indeno(1,2,3-cd)pyrene 0.0500 0.0266 53.2 49.0-122 Isophorone 0.0500 0.0267 53.4 36.0-120 Naphthalene 0.0500 0.0223 44.6 27.0-120 Nitrobenzene 0.0500 0.0250 50.0 27.0-120 n-Nitrosodimethylamine 0.0500 0.0176 35.2 10.0-120 n-Nitrosodiphenylamine 0.0500 0.0245 49.0 47.0-120 n-Nitrosodi-n-propylamine 0.0500 0.0281 56.2 31.0-120 Phenanthrene 0.0500 0.0263 52.6 46.0-120 Benzylbutyl phthalate 0.0500 0.0334 66.8 43.0-121 Bis(2-ethylhexyl)phthalate 0.0500 0.0322 64.4 43.0-122 Di-n-butyl phthalate 0.0500 0.0314 62.8 49.0-121 Diethyl phthalate 0.0500 0.0285 57.0 48.0-122 Dimethyl phthalate 0.0500 0.0274 54.8 48.0-120 Di-n-octyl phthalate 0.0500 0.0304 60.8 42.0-125 Pyrene 0.0500 0.0290 58.0 47.0-120 1,2,4-Trichlorobenzene 0.0500 0.0216 43.2 24.0-120 4-Chloro-3-methylphenol 0.0500 0.0268 53.6 40.0-120 2-Chlorophenol 0.0500 0.0215 43.0 25.0-120 2,4-Dichlorophenol 0.0500 0.0238 47.6 36.0-120 2,4-Dimethylphenol 0.0500 0.0236 47.2 33.0-120 4,6-Dinitro-2-methylphenol 0.0500 0.0357 71.4 38.0-138 2,4-Dinitrophenol 0.0500 0.0374 74.8 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 72 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 72 of 82 QUALITY CONTROL SUMMARYWG2035893 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1600021-10,13 Laboratory Control Sample (LCS) (LCS) R3909982-1 04/05/23 17:17 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2-Nitrophenol 0.0500 0.0250 50.0 31.0-120 4-Nitrophenol 0.0500 0.0121 24.2 10.0-120 Pentachlorophenol 0.0500 0.0257 51.4 23.0-120 Phenol 0.0500 0.0110 22.0 10.0-120 2,4,6-Trichlorophenol 0.0500 0.0241 48.2 42.0-120 (S) 2-Fluorophenol 24.8 10.0-120 (S) Phenol-d5 17.0 10.0-120 (S) Nitrobenzene-d5 46.0 10.0-127 (S) 2-Fluorobiphenyl 45.6 10.0-130 (S) 2,4,6-Tribromophenol 44.6 10.0-155 (S) p-Terphenyl-d14 54.3 10.0-128 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 73 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 73 of 82 QUALITY CONTROL SUMMARYWG2032453 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1600021-01,02,03,04,05,06 Method Blank (MB) (MB) R3908223-2 03/31/23 22:47 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,4-Dioxane 0.000252 J 0.0000447 0.000400 (S) Nitrobenzene-d5 47.7 10.0-120 Laboratory Control Sample (LCS) (LCS) R3908223-1 03/31/23 22:28 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 1,4-Dioxane 0.0500 0.0583 117 73.0-146 (S) Nitrobenzene-d5 52.1 10.0-120 L1599367-13 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1599367-13 03/31/23 23:06 • (MS) R3908223-3 03/31/23 23:26 • (MSD) R3908223-4 03/31/23 23:45 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% 1,4-Dioxane 0.0595 ND 0.0663 0.0684 111 114 1.19 38.0-160 3.12 21 (S) Nitrobenzene-d5 46.9 51.6 10.0-120 L1599367-23 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1599367-23 04/01/23 01:03 • (MS) R3908223-5 04/01/23 01:22 • (MSD) R3908223-6 04/01/23 01:41 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% 1,4-Dioxane 0.0595 ND 0.0713 0.0675 119 113 1.19 38.0-160 5.48 21 (S) Nitrobenzene-d5 64.4 59.3 10.0-120 L1599367-11 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1599367-11 04/01/23 03:57 • (MS) R3908223-7 04/01/23 04:16 • (MSD) R3908223-8 04/01/23 04:35 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% 1,4-Dioxane 0.0595 0.00351 0.0669 0.0673 107 107 1.19 38.0-160 0.596 21 (S) Nitrobenzene-d5 49.6 47.9 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 74 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 74 of 82 QUALITY CONTROL SUMMARYWG2034588 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1600021-07,08,09,10,11,12,13,14,15 Method Blank (MB) (MB) R3910249-3 04/05/23 18:35 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,4-Dioxane 0.000250 J 0.0000447 0.000400 (S) Nitrobenzene-d5 54.5 10.0-120 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3910249-1 04/05/23 17:57 • (LCSD) R3910249-2 04/05/23 18:16 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 1,4-Dioxane 0.0500 0.0562 0.0572 112 114 73.0-146 1.76 20 (S) Nitrobenzene-d5 45.9 50.1 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 75 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 75 of 82 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (S) Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be detected in all environmental media. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description B The same analyte is found in the associated blank. E The analyte concentration exceeds the upper limit of the calibration range of the instrument established by the initial calibration (ICAL). J The identification of the analyte is acceptable; the reported value is an estimate. J3 The associated batch QC was outside the established quality control range for precision. J4 The associated batch QC was outside the established quality control range for accuracy. J5 The sample matrix interfered with the ability to make any accurate determination; spike value is high. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 76 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 76 of 82 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 12:46 77 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600021 04/07/23 15:56 77 of 82 ANALYTICAL REPORT April 09, 2023 Tetra Tech Inc. - UT Sample Delivery Group:L1600531 Samples Received:03/31/2023 Project Number:221020 Description: Site:CHROMALOX Report To:Sarah Showalter 4750 West 2100 South Suite 400 Salt Lake City, UT 84120 Entire Report Reviewed By: April 09, 2023 [Preliminary Report] Chris Ward Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 1 of 37 April 10, 2023 Chris Ward Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 1 of 37 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 MW-14S L1600531-01 5 MW-14D L1600531-02 8 GMW-7 L1600531-03 11 DUP GMW-7 L1600531-04 14 Qc: Quality Control Summary 17 Mercury by Method 7470A 17 Metals (ICP) by Method 6010B 18 Volatile Organic Compounds (GC/MS) by Method 8260B 19 Semi Volatile Organic Compounds (GC/MS) by Method 8270C 29 Semi Volatile Organic Compounds (GC/MS) by Method 8270E 34 Gl: Glossary of Terms 35 Al: Accreditations & Locations 36 Sc: Sample Chain of Custody 37 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 2 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 2 of 37 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-14S L1600531-01 GW Michael Ozier 03/30/23 08:45 03/31/23 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2033924 1 04/05/23 10:38 04/06/23 12:00 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2034071 1 04/04/23 07:50 04/05/23 01:29 ABL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2035835 10 04/05/23 07:11 04/05/23 07:11 ADM Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2038018 200 04/07/23 19:20 04/07/23 19:20 ADM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2037026 1 04/06/23 16:34 04/07/23 01:34 AED Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2033707 1 04/01/23 07:27 04/01/23 18:39 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-14D L1600531-02 GW Michael Ozier 03/30/23 09:25 03/31/23 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2033924 1 04/05/23 10:38 04/06/23 12:02 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2034071 1 04/04/23 07:50 04/05/23 01:32 ABL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2035835 1 04/05/23 03:44 04/05/23 03:44 ADM Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2038018 10 04/07/23 19:41 04/07/23 19:41 ADM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2037026 1 04/06/23 16:34 04/07/23 01:55 AED Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2033707 1 04/01/23 07:27 04/01/23 18:58 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time GMW-7 L1600531-03 GW Michael Ozier 03/30/23 10:15 03/31/23 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2033924 1 04/05/23 10:38 04/06/23 12:08 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2034071 1 04/04/23 07:50 04/05/23 01:34 ABL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2035864 1 04/05/23 00:26 04/05/23 00:26 GH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2038015 20 04/07/23 17:33 04/07/23 17:33 ADM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2037026 1 04/06/23 16:34 04/07/23 02:16 AED Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2033707 1 04/01/23 07:27 04/01/23 19:18 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time DUP GMW-7 L1600531-04 GW Michael Ozier 03/30/23 10:15 03/31/23 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2033924 1 04/05/23 10:38 04/06/23 12:11 SRT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2034071 1 04/04/23 07:50 04/05/23 01:37 ABL Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2035864 1 04/05/23 00:46 04/05/23 00:46 GH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2038015 20 04/07/23 17:54 04/07/23 17:54 ADM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2037026 1 04/06/23 16:34 04/07/23 02:39 AED Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2033707 1 04/01/23 07:27 04/01/23 19:37 DSH Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 3 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 3 of 37 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Chris Ward Project Manager Sample Delivery Group (SDG) Narrative pH outside of method requirement. Lab Sample ID Project Sample ID Method L1600531-01 MW-14S 8260B L1600531-02 MW-14D 8260B 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 4 of 37 Chris Ward Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 4 of 37 SAMPLE RESULTS - 01 L1600531 MW-14S Collected date/time: 03/30/23 08:45 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/06/2023 12:00 WG2033924 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0264 0.0100 1 04/05/2023 01:29 WG2034071 Barium,Dissolved 0.0189 0.00500 1 04/05/2023 01:29 WG2034071 Cadmium,Dissolved ND 0.00200 1 04/05/2023 01:29 WG2034071 Chromium,Dissolved ND 0.0100 1 04/05/2023 01:29 WG2034071 Iron,Dissolved ND 0.100 1 04/05/2023 01:29 WG2034071 Lead,Dissolved 0.00765 0.00600 1 04/05/2023 01:29 WG2034071 Manganese,Dissolved 6.19 0.0100 1 04/05/2023 01:29 WG2034071 Selenium,Dissolved ND 0.0100 1 04/05/2023 01:29 WG2034071 Silver,Dissolved ND 0.00500 1 04/05/2023 01:29 WG2034071 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.500 10 04/05/2023 07:11 WG2035835 Acrolein ND 0.500 10 04/05/2023 07:11 WG2035835 Acrylonitrile ND 0.100 10 04/05/2023 07:11 WG2035835 Benzene ND 0.0100 10 04/05/2023 07:11 WG2035835 Bromobenzene ND 0.0100 10 04/05/2023 07:11 WG2035835 Bromodichloromethane ND 0.0100 10 04/05/2023 07:11 WG2035835 Bromoform ND 0.0100 10 04/05/2023 07:11 WG2035835 Bromomethane ND J3 0.0500 10 04/05/2023 07:11 WG2035835 n-Butylbenzene ND 0.0100 10 04/05/2023 07:11 WG2035835 sec-Butylbenzene ND 0.0100 10 04/05/2023 07:11 WG2035835 tert-Butylbenzene ND 0.0100 10 04/05/2023 07:11 WG2035835 Carbon tetrachloride ND 0.0100 10 04/05/2023 07:11 WG2035835 Chlorobenzene ND 0.0100 10 04/05/2023 07:11 WG2035835 Chlorodibromomethane ND 0.0100 10 04/05/2023 07:11 WG2035835 Chloroethane ND 0.0500 10 04/05/2023 07:11 WG2035835 Chloroform ND 0.0500 10 04/05/2023 07:11 WG2035835 Chloromethane ND 0.0250 10 04/05/2023 07:11 WG2035835 2-Chlorotoluene ND 0.0100 10 04/05/2023 07:11 WG2035835 4-Chlorotoluene ND 0.0100 10 04/05/2023 07:11 WG2035835 1,2-Dibromo-3-Chloropropane ND 0.0500 10 04/05/2023 07:11 WG2035835 1,2-Dibromoethane ND 0.0100 10 04/05/2023 07:11 WG2035835 Dibromomethane ND 0.0100 10 04/05/2023 07:11 WG2035835 1,2-Dichlorobenzene ND 0.0100 10 04/05/2023 07:11 WG2035835 1,3-Dichlorobenzene ND 0.0100 10 04/05/2023 07:11 WG2035835 1,4-Dichlorobenzene ND 0.0100 10 04/05/2023 07:11 WG2035835 Dichlorodifluoromethane ND 0.0500 10 04/05/2023 07:11 WG2035835 1,1-Dichloroethane 4.59 0.200 200 04/07/2023 19:20 WG2038018 1,2-Dichloroethane 0.172 0.0100 10 04/05/2023 07:11 WG2035835 1,1-Dichloroethene ND 0.0100 10 04/05/2023 07:11 WG2035835 cis-1,2-Dichloroethene 0.0186 0.0100 10 04/05/2023 07:11 WG2035835 trans-1,2-Dichloroethene ND 0.0100 10 04/05/2023 07:11 WG2035835 1,2-Dichloropropane ND 0.0100 10 04/05/2023 07:11 WG2035835 1,1-Dichloropropene ND 0.0100 10 04/05/2023 07:11 WG2035835 1,3-Dichloropropane ND 0.0100 10 04/05/2023 07:11 WG2035835 cis-1,3-Dichloropropene ND 0.0100 10 04/05/2023 07:11 WG2035835 trans-1,3-Dichloropropene ND 0.0100 10 04/05/2023 07:11 WG2035835 2,2-Dichloropropane ND 0.0100 10 04/05/2023 07:11 WG2035835 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 5 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 5 of 37 SAMPLE RESULTS - 01 L1600531 MW-14S Collected date/time: 03/30/23 08:45 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.0100 10 04/05/2023 07:11 WG2035835 Ethylbenzene ND 0.0100 10 04/05/2023 07:11 WG2035835 Hexachloro-1,3-butadiene ND 0.0100 10 04/05/2023 07:11 WG2035835 Isopropylbenzene ND 0.0100 10 04/05/2023 07:11 WG2035835 p-Isopropyltoluene ND 0.0100 10 04/05/2023 07:11 WG2035835 2-Butanone (MEK)ND 0.100 10 04/05/2023 07:11 WG2035835 Methylene Chloride ND 0.0500 10 04/05/2023 07:11 WG2035835 4-Methyl-2-pentanone (MIBK)ND 0.100 10 04/05/2023 07:11 WG2035835 Methyl tert-butyl ether ND 0.0100 10 04/05/2023 07:11 WG2035835 Naphthalene ND 0.0500 10 04/05/2023 07:11 WG2035835 n-Propylbenzene ND 0.0100 10 04/05/2023 07:11 WG2035835 Styrene ND 0.0100 10 04/05/2023 07:11 WG2035835 1,1,1,2-Tetrachloroethane ND 0.0100 10 04/05/2023 07:11 WG2035835 1,1,2,2-Tetrachloroethane ND 0.0100 10 04/05/2023 07:11 WG2035835 1,1,2-Trichlorotrifluoroethane 0.125 0.0100 10 04/05/2023 07:11 WG2035835 Tetrachloroethene 0.0402 0.0100 10 04/05/2023 07:11 WG2035835 Toluene 0.0694 0.0100 10 04/05/2023 07:11 WG2035835 1,2,3-Trichlorobenzene ND 0.0100 10 04/05/2023 07:11 WG2035835 1,2,4-Trichlorobenzene ND 0.0100 10 04/05/2023 07:11 WG2035835 1,1,1-Trichloroethane 0.296 0.0100 10 04/05/2023 07:11 WG2035835 1,1,2-Trichloroethane 0.0909 0.0100 10 04/05/2023 07:11 WG2035835 Trichloroethene 0.109 0.0100 10 04/05/2023 07:11 WG2035835 Trichlorofluoromethane ND 0.0500 10 04/05/2023 07:11 WG2035835 1,2,3-Trichloropropane ND 0.0250 10 04/05/2023 07:11 WG2035835 1,2,4-Trimethylbenzene ND 0.0100 10 04/05/2023 07:11 WG2035835 1,2,3-Trimethylbenzene ND 0.0100 10 04/05/2023 07:11 WG2035835 1,3,5-Trimethylbenzene ND 0.0100 10 04/05/2023 07:11 WG2035835 Vinyl chloride 0.0134 0.0100 10 04/05/2023 07:11 WG2035835 Xylenes, Total ND 0.0300 10 04/05/2023 07:11 WG2035835 (S) Toluene-d8 112 80.0-120 04/05/2023 07:11 WG2035835 (S) Toluene-d8 87.4 80.0-120 04/07/2023 19:20 WG2038018 (S) 4-Bromofluorobenzene 107 77.0-126 04/05/2023 07:11 WG2035835 (S) 4-Bromofluorobenzene 87.8 77.0-126 04/07/2023 19:20 WG2038018 (S) 1,2-Dichloroethane-d4 120 70.0-130 04/05/2023 07:11 WG2035835 (S) 1,2-Dichloroethane-d4 87.8 70.0-130 04/07/2023 19:20 WG2038018 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 04/07/2023 01:34 WG2037026 Acenaphthylene ND 0.00100 1 04/07/2023 01:34 WG2037026 Anthracene ND 0.00100 1 04/07/2023 01:34 WG2037026 Benzidine ND J4 0.0100 1 04/07/2023 01:34 WG2037026 Benzo(a)anthracene ND 0.00100 1 04/07/2023 01:34 WG2037026 Benzo(b)fluoranthene ND 0.00100 1 04/07/2023 01:34 WG2037026 Benzo(k)fluoranthene ND 0.00100 1 04/07/2023 01:34 WG2037026 Benzo(g,h,i)perylene ND 0.00100 1 04/07/2023 01:34 WG2037026 Benzo(a)pyrene ND 0.00100 1 04/07/2023 01:34 WG2037026 Bis(2-chlorethoxy)methane ND 0.0100 1 04/07/2023 01:34 WG2037026 Bis(2-chloroethyl)ether ND 0.0100 1 04/07/2023 01:34 WG2037026 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 04/07/2023 01:34 WG2037026 4-Bromophenyl-phenylether ND 0.0100 1 04/07/2023 01:34 WG2037026 2-Chloronaphthalene ND 0.00100 1 04/07/2023 01:34 WG2037026 4-Chlorophenyl-phenylether ND 0.0100 1 04/07/2023 01:34 WG2037026 Chrysene ND 0.00100 1 04/07/2023 01:34 WG2037026 Dibenz(a,h)anthracene ND 0.00100 1 04/07/2023 01:34 WG2037026 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 6 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 6 of 37 SAMPLE RESULTS - 01 L1600531 MW-14S Collected date/time: 03/30/23 08:45 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,2-Dichlorobenzene ND 0.0100 1 04/07/2023 01:34 WG2037026 1,3-Dichlorobenzene ND 0.0100 1 04/07/2023 01:34 WG2037026 1,4-Dichlorobenzene ND 0.0100 1 04/07/2023 01:34 WG2037026 3,3-Dichlorobenzidine ND 0.0100 1 04/07/2023 01:34 WG2037026 2,4-Dinitrotoluene ND 0.0100 1 04/07/2023 01:34 WG2037026 2,6-Dinitrotoluene ND 0.0100 1 04/07/2023 01:34 WG2037026 Fluoranthene ND 0.00100 1 04/07/2023 01:34 WG2037026 Fluorene ND 0.00100 1 04/07/2023 01:34 WG2037026 Hexachlorobenzene ND 0.00100 1 04/07/2023 01:34 WG2037026 Hexachloro-1,3-butadiene ND 0.0100 1 04/07/2023 01:34 WG2037026 Hexachlorocyclopentadiene ND 0.0100 1 04/07/2023 01:34 WG2037026 Hexachloroethane ND 0.0100 1 04/07/2023 01:34 WG2037026 Indeno(1,2,3-cd)pyrene ND 0.00100 1 04/07/2023 01:34 WG2037026 Isophorone ND 0.0100 1 04/07/2023 01:34 WG2037026 Naphthalene ND 0.00100 1 04/07/2023 01:34 WG2037026 Nitrobenzene ND 0.0100 1 04/07/2023 01:34 WG2037026 n-Nitrosodimethylamine ND 0.0100 1 04/07/2023 01:34 WG2037026 n-Nitrosodiphenylamine ND 0.0100 1 04/07/2023 01:34 WG2037026 n-Nitrosodi-n-propylamine ND 0.0100 1 04/07/2023 01:34 WG2037026 Phenanthrene ND 0.00100 1 04/07/2023 01:34 WG2037026 Benzylbutyl phthalate ND 0.00300 1 04/07/2023 01:34 WG2037026 Bis(2-ethylhexyl)phthalate ND 0.00300 1 04/07/2023 01:34 WG2037026 Di-n-butyl phthalate ND 0.00300 1 04/07/2023 01:34 WG2037026 Diethyl phthalate ND 0.00300 1 04/07/2023 01:34 WG2037026 Dimethyl phthalate ND 0.00300 1 04/07/2023 01:34 WG2037026 Di-n-octyl phthalate ND 0.00300 1 04/07/2023 01:34 WG2037026 Pyrene ND 0.00100 1 04/07/2023 01:34 WG2037026 1,2,4-Trichlorobenzene ND 0.0100 1 04/07/2023 01:34 WG2037026 4-Chloro-3-methylphenol ND 0.0100 1 04/07/2023 01:34 WG2037026 2-Chlorophenol ND 0.0100 1 04/07/2023 01:34 WG2037026 2,4-Dichlorophenol ND 0.0100 1 04/07/2023 01:34 WG2037026 2,4-Dimethylphenol ND 0.0100 1 04/07/2023 01:34 WG2037026 4,6-Dinitro-2-methylphenol ND 0.0100 1 04/07/2023 01:34 WG2037026 2,4-Dinitrophenol ND 0.0100 1 04/07/2023 01:34 WG2037026 2-Nitrophenol ND 0.0100 1 04/07/2023 01:34 WG2037026 4-Nitrophenol ND 0.0100 1 04/07/2023 01:34 WG2037026 Pentachlorophenol ND 0.0100 1 04/07/2023 01:34 WG2037026 Phenol ND 0.0100 1 04/07/2023 01:34 WG2037026 2,4,6-Trichlorophenol ND 0.0100 1 04/07/2023 01:34 WG2037026 (S) 2-Fluorophenol 17.0 10.0-120 04/07/2023 01:34 WG2037026 (S) Phenol-d5 16.8 10.0-120 04/07/2023 01:34 WG2037026 (S) Nitrobenzene-d5 47.5 10.0-127 04/07/2023 01:34 WG2037026 (S) 2-Fluorobiphenyl 50.8 10.0-130 04/07/2023 01:34 WG2037026 (S) 2,4,6-Tribromophenol 46.0 10.0-155 04/07/2023 01:34 WG2037026 (S) p-Terphenyl-d14 50.8 10.0-128 04/07/2023 01:34 WG2037026 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.0854 0.000400 1 04/01/2023 18:39 WG2033707 (S) Nitrobenzene-d5 52.4 10.0-120 04/01/2023 18:39 WG2033707 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 7 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 7 of 37 SAMPLE RESULTS - 02 L1600531 MW-14D Collected date/time: 03/30/23 09:25 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/06/2023 12:02 WG2033924 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.360 0.0100 1 04/05/2023 01:32 WG2034071 Barium,Dissolved 0.102 0.00500 1 04/05/2023 01:32 WG2034071 Cadmium,Dissolved ND 0.00200 1 04/05/2023 01:32 WG2034071 Chromium,Dissolved ND 0.0100 1 04/05/2023 01:32 WG2034071 Iron,Dissolved 0.145 0.100 1 04/05/2023 01:32 WG2034071 Lead,Dissolved ND 0.00600 1 04/05/2023 01:32 WG2034071 Manganese,Dissolved 0.108 0.0100 1 04/05/2023 01:32 WG2034071 Selenium,Dissolved ND 0.0100 1 04/05/2023 01:32 WG2034071 Silver,Dissolved ND 0.00500 1 04/05/2023 01:32 WG2034071 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 04/05/2023 03:44 WG2035835 Acrolein ND 0.0500 1 04/05/2023 03:44 WG2035835 Acrylonitrile ND 0.0100 1 04/05/2023 03:44 WG2035835 Benzene ND 0.00100 1 04/05/2023 03:44 WG2035835 Bromobenzene ND 0.00100 1 04/05/2023 03:44 WG2035835 Bromodichloromethane ND 0.00100 1 04/05/2023 03:44 WG2035835 Bromoform ND 0.00100 1 04/05/2023 03:44 WG2035835 Bromomethane ND J3 0.00500 1 04/05/2023 03:44 WG2035835 n-Butylbenzene ND 0.00100 1 04/05/2023 03:44 WG2035835 sec-Butylbenzene ND 0.00100 1 04/05/2023 03:44 WG2035835 tert-Butylbenzene ND 0.00100 1 04/05/2023 03:44 WG2035835 Carbon tetrachloride ND 0.00100 1 04/05/2023 03:44 WG2035835 Chlorobenzene ND 0.00100 1 04/05/2023 03:44 WG2035835 Chlorodibromomethane ND 0.00100 1 04/05/2023 03:44 WG2035835 Chloroethane 0.168 0.0500 10 04/07/2023 19:41 WG2038018 Chloroform ND 0.00500 1 04/05/2023 03:44 WG2035835 Chloromethane ND 0.00250 1 04/05/2023 03:44 WG2035835 2-Chlorotoluene ND 0.00100 1 04/05/2023 03:44 WG2035835 4-Chlorotoluene ND 0.00100 1 04/05/2023 03:44 WG2035835 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/05/2023 03:44 WG2035835 1,2-Dibromoethane ND 0.00100 1 04/05/2023 03:44 WG2035835 Dibromomethane ND 0.00100 1 04/05/2023 03:44 WG2035835 1,2-Dichlorobenzene ND 0.00100 1 04/05/2023 03:44 WG2035835 1,3-Dichlorobenzene ND 0.00100 1 04/05/2023 03:44 WG2035835 1,4-Dichlorobenzene ND 0.00100 1 04/05/2023 03:44 WG2035835 Dichlorodifluoromethane ND 0.00500 1 04/05/2023 03:44 WG2035835 1,1-Dichloroethane 0.218 0.0100 10 04/07/2023 19:41 WG2038018 1,2-Dichloroethane 0.00125 0.00100 1 04/05/2023 03:44 WG2035835 1,1-Dichloroethene 0.0781 0.00100 1 04/05/2023 03:44 WG2035835 cis-1,2-Dichloroethene ND 0.00100 1 04/05/2023 03:44 WG2035835 trans-1,2-Dichloroethene ND 0.00100 1 04/05/2023 03:44 WG2035835 1,2-Dichloropropane ND 0.00100 1 04/05/2023 03:44 WG2035835 1,1-Dichloropropene ND 0.00100 1 04/05/2023 03:44 WG2035835 1,3-Dichloropropane ND 0.00100 1 04/05/2023 03:44 WG2035835 cis-1,3-Dichloropropene ND 0.00100 1 04/05/2023 03:44 WG2035835 trans-1,3-Dichloropropene ND 0.00100 1 04/05/2023 03:44 WG2035835 2,2-Dichloropropane ND 0.00100 1 04/05/2023 03:44 WG2035835 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 8 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 8 of 37 SAMPLE RESULTS - 02 L1600531 MW-14D Collected date/time: 03/30/23 09:25 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/05/2023 03:44 WG2035835 Ethylbenzene ND 0.00100 1 04/05/2023 03:44 WG2035835 Hexachloro-1,3-butadiene ND 0.00100 1 04/05/2023 03:44 WG2035835 Isopropylbenzene ND 0.00100 1 04/05/2023 03:44 WG2035835 p-Isopropyltoluene ND 0.00100 1 04/05/2023 03:44 WG2035835 2-Butanone (MEK)ND 0.0100 1 04/05/2023 03:44 WG2035835 Methylene Chloride ND 0.00500 1 04/05/2023 03:44 WG2035835 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/05/2023 03:44 WG2035835 Methyl tert-butyl ether ND 0.00100 1 04/05/2023 03:44 WG2035835 Naphthalene ND 0.00500 1 04/05/2023 03:44 WG2035835 n-Propylbenzene ND 0.00100 1 04/05/2023 03:44 WG2035835 Styrene ND 0.00100 1 04/05/2023 03:44 WG2035835 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/05/2023 03:44 WG2035835 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/05/2023 03:44 WG2035835 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 04/05/2023 03:44 WG2035835 Tetrachloroethene ND 0.00100 1 04/05/2023 03:44 WG2035835 Toluene ND 0.00100 1 04/05/2023 03:44 WG2035835 1,2,3-Trichlorobenzene ND 0.00100 1 04/05/2023 03:44 WG2035835 1,2,4-Trichlorobenzene ND 0.00100 1 04/05/2023 03:44 WG2035835 1,1,1-Trichloroethane ND 0.00100 1 04/05/2023 03:44 WG2035835 1,1,2-Trichloroethane ND 0.00100 1 04/05/2023 03:44 WG2035835 Trichloroethene ND 0.00100 1 04/05/2023 03:44 WG2035835 Trichlorofluoromethane ND 0.00500 1 04/05/2023 03:44 WG2035835 1,2,3-Trichloropropane ND 0.00250 1 04/05/2023 03:44 WG2035835 1,2,4-Trimethylbenzene ND 0.00100 1 04/05/2023 03:44 WG2035835 1,2,3-Trimethylbenzene ND 0.00100 1 04/05/2023 03:44 WG2035835 1,3,5-Trimethylbenzene ND 0.00100 1 04/05/2023 03:44 WG2035835 Vinyl chloride 0.00289 0.00100 1 04/05/2023 03:44 WG2035835 Xylenes, Total ND 0.00300 1 04/05/2023 03:44 WG2035835 (S) Toluene-d8 117 80.0-120 04/05/2023 03:44 WG2035835 (S) Toluene-d8 91.0 80.0-120 04/07/2023 19:41 WG2038018 (S) 4-Bromofluorobenzene 109 77.0-126 04/05/2023 03:44 WG2035835 (S) 4-Bromofluorobenzene 92.7 77.0-126 04/07/2023 19:41 WG2038018 (S) 1,2-Dichloroethane-d4 112 70.0-130 04/05/2023 03:44 WG2035835 (S) 1,2-Dichloroethane-d4 89.7 70.0-130 04/07/2023 19:41 WG2038018 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 04/07/2023 01:55 WG2037026 Acenaphthylene ND 0.00100 1 04/07/2023 01:55 WG2037026 Anthracene ND 0.00100 1 04/07/2023 01:55 WG2037026 Benzidine ND J4 0.0100 1 04/07/2023 01:55 WG2037026 Benzo(a)anthracene ND 0.00100 1 04/07/2023 01:55 WG2037026 Benzo(b)fluoranthene ND 0.00100 1 04/07/2023 01:55 WG2037026 Benzo(k)fluoranthene ND 0.00100 1 04/07/2023 01:55 WG2037026 Benzo(g,h,i)perylene ND 0.00100 1 04/07/2023 01:55 WG2037026 Benzo(a)pyrene ND 0.00100 1 04/07/2023 01:55 WG2037026 Bis(2-chlorethoxy)methane ND 0.0100 1 04/07/2023 01:55 WG2037026 Bis(2-chloroethyl)ether ND 0.0100 1 04/07/2023 01:55 WG2037026 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 04/07/2023 01:55 WG2037026 4-Bromophenyl-phenylether ND 0.0100 1 04/07/2023 01:55 WG2037026 2-Chloronaphthalene ND 0.00100 1 04/07/2023 01:55 WG2037026 4-Chlorophenyl-phenylether ND 0.0100 1 04/07/2023 01:55 WG2037026 Chrysene ND 0.00100 1 04/07/2023 01:55 WG2037026 Dibenz(a,h)anthracene ND 0.00100 1 04/07/2023 01:55 WG2037026 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 9 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 9 of 37 SAMPLE RESULTS - 02 L1600531 MW-14D Collected date/time: 03/30/23 09:25 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,2-Dichlorobenzene ND 0.0100 1 04/07/2023 01:55 WG2037026 1,3-Dichlorobenzene ND 0.0100 1 04/07/2023 01:55 WG2037026 1,4-Dichlorobenzene ND 0.0100 1 04/07/2023 01:55 WG2037026 3,3-Dichlorobenzidine ND 0.0100 1 04/07/2023 01:55 WG2037026 2,4-Dinitrotoluene ND 0.0100 1 04/07/2023 01:55 WG2037026 2,6-Dinitrotoluene ND 0.0100 1 04/07/2023 01:55 WG2037026 Fluoranthene ND 0.00100 1 04/07/2023 01:55 WG2037026 Fluorene ND 0.00100 1 04/07/2023 01:55 WG2037026 Hexachlorobenzene ND 0.00100 1 04/07/2023 01:55 WG2037026 Hexachloro-1,3-butadiene ND 0.0100 1 04/07/2023 01:55 WG2037026 Hexachlorocyclopentadiene ND 0.0100 1 04/07/2023 01:55 WG2037026 Hexachloroethane ND 0.0100 1 04/07/2023 01:55 WG2037026 Indeno(1,2,3-cd)pyrene ND 0.00100 1 04/07/2023 01:55 WG2037026 Isophorone ND 0.0100 1 04/07/2023 01:55 WG2037026 Naphthalene ND 0.00100 1 04/07/2023 01:55 WG2037026 Nitrobenzene ND 0.0100 1 04/07/2023 01:55 WG2037026 n-Nitrosodimethylamine ND 0.0100 1 04/07/2023 01:55 WG2037026 n-Nitrosodiphenylamine ND 0.0100 1 04/07/2023 01:55 WG2037026 n-Nitrosodi-n-propylamine ND 0.0100 1 04/07/2023 01:55 WG2037026 Phenanthrene ND 0.00100 1 04/07/2023 01:55 WG2037026 Benzylbutyl phthalate ND 0.00300 1 04/07/2023 01:55 WG2037026 Bis(2-ethylhexyl)phthalate ND 0.00300 1 04/07/2023 01:55 WG2037026 Di-n-butyl phthalate ND 0.00300 1 04/07/2023 01:55 WG2037026 Diethyl phthalate ND 0.00300 1 04/07/2023 01:55 WG2037026 Dimethyl phthalate ND 0.00300 1 04/07/2023 01:55 WG2037026 Di-n-octyl phthalate ND 0.00300 1 04/07/2023 01:55 WG2037026 Pyrene ND 0.00100 1 04/07/2023 01:55 WG2037026 1,2,4-Trichlorobenzene ND 0.0100 1 04/07/2023 01:55 WG2037026 4-Chloro-3-methylphenol ND 0.0100 1 04/07/2023 01:55 WG2037026 2-Chlorophenol ND 0.0100 1 04/07/2023 01:55 WG2037026 2,4-Dichlorophenol ND 0.0100 1 04/07/2023 01:55 WG2037026 2,4-Dimethylphenol ND 0.0100 1 04/07/2023 01:55 WG2037026 4,6-Dinitro-2-methylphenol ND 0.0100 1 04/07/2023 01:55 WG2037026 2,4-Dinitrophenol ND 0.0100 1 04/07/2023 01:55 WG2037026 2-Nitrophenol ND 0.0100 1 04/07/2023 01:55 WG2037026 4-Nitrophenol ND 0.0100 1 04/07/2023 01:55 WG2037026 Pentachlorophenol ND 0.0100 1 04/07/2023 01:55 WG2037026 Phenol ND 0.0100 1 04/07/2023 01:55 WG2037026 2,4,6-Trichlorophenol ND 0.0100 1 04/07/2023 01:55 WG2037026 (S) 2-Fluorophenol 17.3 10.0-120 04/07/2023 01:55 WG2037026 (S) Phenol-d5 13.1 10.0-120 04/07/2023 01:55 WG2037026 (S) Nitrobenzene-d5 52.0 10.0-127 04/07/2023 01:55 WG2037026 (S) 2-Fluorobiphenyl 54.7 10.0-130 04/07/2023 01:55 WG2037026 (S) 2,4,6-Tribromophenol 41.3 10.0-155 04/07/2023 01:55 WG2037026 (S) p-Terphenyl-d14 48.7 10.0-128 04/07/2023 01:55 WG2037026 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane ND 0.000400 1 04/01/2023 18:58 WG2033707 (S) Nitrobenzene-d5 47.3 10.0-120 04/01/2023 18:58 WG2033707 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 10 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 10 of 37 SAMPLE RESULTS - 03 L1600531 GMW-7 Collected date/time: 03/30/23 10:15 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/06/2023 12:08 WG2033924 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0203 0.0100 1 04/05/2023 01:34 WG2034071 Barium,Dissolved 0.207 0.00500 1 04/05/2023 01:34 WG2034071 Cadmium,Dissolved ND 0.00200 1 04/05/2023 01:34 WG2034071 Chromium,Dissolved 1.55 0.0100 1 04/05/2023 01:34 WG2034071 Iron,Dissolved 6.37 0.100 1 04/05/2023 01:34 WG2034071 Lead,Dissolved ND 0.00600 1 04/05/2023 01:34 WG2034071 Manganese,Dissolved 0.442 0.0100 1 04/05/2023 01:34 WG2034071 Selenium,Dissolved ND 0.0100 1 04/05/2023 01:34 WG2034071 Silver,Dissolved ND 0.00500 1 04/05/2023 01:34 WG2034071 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 04/05/2023 00:26 WG2035864 Acrolein ND 0.0500 1 04/05/2023 00:26 WG2035864 Acrylonitrile ND 0.0100 1 04/05/2023 00:26 WG2035864 Benzene ND 0.00100 1 04/05/2023 00:26 WG2035864 Bromobenzene ND 0.00100 1 04/05/2023 00:26 WG2035864 Bromodichloromethane ND 0.00100 1 04/05/2023 00:26 WG2035864 Bromoform ND 0.00100 1 04/05/2023 00:26 WG2035864 Bromomethane ND 0.00500 1 04/05/2023 00:26 WG2035864 n-Butylbenzene ND 0.00100 1 04/05/2023 00:26 WG2035864 sec-Butylbenzene ND 0.00100 1 04/05/2023 00:26 WG2035864 tert-Butylbenzene ND 0.00100 1 04/05/2023 00:26 WG2035864 Carbon tetrachloride ND 0.00100 1 04/05/2023 00:26 WG2035864 Chlorobenzene ND 0.00100 1 04/05/2023 00:26 WG2035864 Chlorodibromomethane ND 0.00100 1 04/05/2023 00:26 WG2035864 Chloroethane ND 0.00500 1 04/05/2023 00:26 WG2035864 Chloroform ND 0.00500 1 04/05/2023 00:26 WG2035864 Chloromethane ND 0.00250 1 04/05/2023 00:26 WG2035864 2-Chlorotoluene ND 0.00100 1 04/05/2023 00:26 WG2035864 4-Chlorotoluene ND 0.00100 1 04/05/2023 00:26 WG2035864 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/05/2023 00:26 WG2035864 1,2-Dibromoethane ND 0.00100 1 04/05/2023 00:26 WG2035864 Dibromomethane ND 0.00100 1 04/05/2023 00:26 WG2035864 1,2-Dichlorobenzene ND 0.00100 1 04/05/2023 00:26 WG2035864 1,3-Dichlorobenzene ND 0.00100 1 04/05/2023 00:26 WG2035864 1,4-Dichlorobenzene ND 0.00100 1 04/05/2023 00:26 WG2035864 Dichlorodifluoromethane ND 0.00500 1 04/05/2023 00:26 WG2035864 1,1-Dichloroethane 0.0432 0.00100 1 04/05/2023 00:26 WG2035864 1,2-Dichloroethane 0.00194 B 0.00100 1 04/05/2023 00:26 WG2035864 1,1-Dichloroethene 0.568 0.0200 20 04/07/2023 17:33 WG2038015 cis-1,2-Dichloroethene 0.00185 0.00100 1 04/05/2023 00:26 WG2035864 trans-1,2-Dichloroethene ND 0.00100 1 04/05/2023 00:26 WG2035864 1,2-Dichloropropane ND 0.00100 1 04/05/2023 00:26 WG2035864 1,1-Dichloropropene ND 0.00100 1 04/05/2023 00:26 WG2035864 1,3-Dichloropropane ND 0.00100 1 04/05/2023 00:26 WG2035864 cis-1,3-Dichloropropene ND 0.00100 1 04/05/2023 00:26 WG2035864 trans-1,3-Dichloropropene ND 0.00100 1 04/05/2023 00:26 WG2035864 2,2-Dichloropropane ND 0.00100 1 04/05/2023 00:26 WG2035864 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 11 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 11 of 37 SAMPLE RESULTS - 03 L1600531 GMW-7 Collected date/time: 03/30/23 10:15 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/05/2023 00:26 WG2035864 Ethylbenzene ND 0.00100 1 04/05/2023 00:26 WG2035864 Hexachloro-1,3-butadiene ND 0.00100 1 04/05/2023 00:26 WG2035864 Isopropylbenzene ND 0.00100 1 04/05/2023 00:26 WG2035864 p-Isopropyltoluene ND 0.00100 1 04/05/2023 00:26 WG2035864 2-Butanone (MEK)ND 0.0100 1 04/05/2023 00:26 WG2035864 Methylene Chloride ND 0.00500 1 04/05/2023 00:26 WG2035864 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/05/2023 00:26 WG2035864 Methyl tert-butyl ether ND 0.00100 1 04/05/2023 00:26 WG2035864 Naphthalene ND 0.00500 1 04/05/2023 00:26 WG2035864 n-Propylbenzene ND 0.00100 1 04/05/2023 00:26 WG2035864 Styrene ND 0.00100 1 04/05/2023 00:26 WG2035864 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/05/2023 00:26 WG2035864 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/05/2023 00:26 WG2035864 1,1,2-Trichlorotrifluoroethane ND J4 0.00100 1 04/05/2023 00:26 WG2035864 Tetrachloroethene 0.00318 0.00100 1 04/05/2023 00:26 WG2035864 Toluene ND 0.00100 1 04/05/2023 00:26 WG2035864 1,2,3-Trichlorobenzene ND 0.00100 1 04/05/2023 00:26 WG2035864 1,2,4-Trichlorobenzene ND 0.00100 1 04/05/2023 00:26 WG2035864 1,1,1-Trichloroethane 0.00292 0.00100 1 04/05/2023 00:26 WG2035864 1,1,2-Trichloroethane ND 0.00100 1 04/05/2023 00:26 WG2035864 Trichloroethene 0.00297 B 0.00100 1 04/05/2023 00:26 WG2035864 Trichlorofluoromethane ND 0.00500 1 04/05/2023 00:26 WG2035864 1,2,3-Trichloropropane ND 0.00250 1 04/05/2023 00:26 WG2035864 1,2,4-Trimethylbenzene ND 0.00100 1 04/05/2023 00:26 WG2035864 1,2,3-Trimethylbenzene ND 0.00100 1 04/05/2023 00:26 WG2035864 1,3,5-Trimethylbenzene ND 0.00100 1 04/05/2023 00:26 WG2035864 Vinyl chloride ND 0.00100 1 04/05/2023 00:26 WG2035864 Xylenes, Total ND 0.00300 1 04/05/2023 00:26 WG2035864 (S) Toluene-d8 115 80.0-120 04/05/2023 00:26 WG2035864 (S) Toluene-d8 92.0 80.0-120 04/07/2023 17:33 WG2038015 (S) 4-Bromofluorobenzene 83.6 77.0-126 04/05/2023 00:26 WG2035864 (S) 4-Bromofluorobenzene 96.6 77.0-126 04/07/2023 17:33 WG2038015 (S) 1,2-Dichloroethane-d4 97.8 70.0-130 04/05/2023 00:26 WG2035864 (S) 1,2-Dichloroethane-d4 91.2 70.0-130 04/07/2023 17:33 WG2038015 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 04/07/2023 02:16 WG2037026 Acenaphthylene ND 0.00100 1 04/07/2023 02:16 WG2037026 Anthracene ND 0.00100 1 04/07/2023 02:16 WG2037026 Benzidine ND J4 0.0100 1 04/07/2023 02:16 WG2037026 Benzo(a)anthracene ND 0.00100 1 04/07/2023 02:16 WG2037026 Benzo(b)fluoranthene ND 0.00100 1 04/07/2023 02:16 WG2037026 Benzo(k)fluoranthene ND 0.00100 1 04/07/2023 02:16 WG2037026 Benzo(g,h,i)perylene ND 0.00100 1 04/07/2023 02:16 WG2037026 Benzo(a)pyrene ND 0.00100 1 04/07/2023 02:16 WG2037026 Bis(2-chlorethoxy)methane ND 0.0100 1 04/07/2023 02:16 WG2037026 Bis(2-chloroethyl)ether ND 0.0100 1 04/07/2023 02:16 WG2037026 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 04/07/2023 02:16 WG2037026 4-Bromophenyl-phenylether ND 0.0100 1 04/07/2023 02:16 WG2037026 2-Chloronaphthalene ND 0.00100 1 04/07/2023 02:16 WG2037026 4-Chlorophenyl-phenylether ND 0.0100 1 04/07/2023 02:16 WG2037026 Chrysene ND 0.00100 1 04/07/2023 02:16 WG2037026 Dibenz(a,h)anthracene ND 0.00100 1 04/07/2023 02:16 WG2037026 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 12 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 12 of 37 SAMPLE RESULTS - 03 L1600531 GMW-7 Collected date/time: 03/30/23 10:15 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,2-Dichlorobenzene ND 0.0100 1 04/07/2023 02:16 WG2037026 1,3-Dichlorobenzene ND 0.0100 1 04/07/2023 02:16 WG2037026 1,4-Dichlorobenzene ND 0.0100 1 04/07/2023 02:16 WG2037026 3,3-Dichlorobenzidine ND 0.0100 1 04/07/2023 02:16 WG2037026 2,4-Dinitrotoluene ND 0.0100 1 04/07/2023 02:16 WG2037026 2,6-Dinitrotoluene ND 0.0100 1 04/07/2023 02:16 WG2037026 Fluoranthene ND 0.00100 1 04/07/2023 02:16 WG2037026 Fluorene ND 0.00100 1 04/07/2023 02:16 WG2037026 Hexachlorobenzene ND 0.00100 1 04/07/2023 02:16 WG2037026 Hexachloro-1,3-butadiene ND 0.0100 1 04/07/2023 02:16 WG2037026 Hexachlorocyclopentadiene ND 0.0100 1 04/07/2023 02:16 WG2037026 Hexachloroethane ND 0.0100 1 04/07/2023 02:16 WG2037026 Indeno(1,2,3-cd)pyrene ND 0.00100 1 04/07/2023 02:16 WG2037026 Isophorone ND 0.0100 1 04/07/2023 02:16 WG2037026 Naphthalene ND 0.00100 1 04/07/2023 02:16 WG2037026 Nitrobenzene ND 0.0100 1 04/07/2023 02:16 WG2037026 n-Nitrosodimethylamine ND 0.0100 1 04/07/2023 02:16 WG2037026 n-Nitrosodiphenylamine ND 0.0100 1 04/07/2023 02:16 WG2037026 n-Nitrosodi-n-propylamine ND 0.0100 1 04/07/2023 02:16 WG2037026 Phenanthrene ND 0.00100 1 04/07/2023 02:16 WG2037026 Benzylbutyl phthalate ND 0.00300 1 04/07/2023 02:16 WG2037026 Bis(2-ethylhexyl)phthalate 0.00300 0.00300 1 04/07/2023 02:16 WG2037026 Di-n-butyl phthalate ND 0.00300 1 04/07/2023 02:16 WG2037026 Diethyl phthalate ND 0.00300 1 04/07/2023 02:16 WG2037026 Dimethyl phthalate ND 0.00300 1 04/07/2023 02:16 WG2037026 Di-n-octyl phthalate ND 0.00300 1 04/07/2023 02:16 WG2037026 Pyrene ND 0.00100 1 04/07/2023 02:16 WG2037026 1,2,4-Trichlorobenzene ND 0.0100 1 04/07/2023 02:16 WG2037026 4-Chloro-3-methylphenol ND 0.0100 1 04/07/2023 02:16 WG2037026 2-Chlorophenol ND 0.0100 1 04/07/2023 02:16 WG2037026 2,4-Dichlorophenol ND 0.0100 1 04/07/2023 02:16 WG2037026 2,4-Dimethylphenol ND 0.0100 1 04/07/2023 02:16 WG2037026 4,6-Dinitro-2-methylphenol ND 0.0100 1 04/07/2023 02:16 WG2037026 2,4-Dinitrophenol ND 0.0100 1 04/07/2023 02:16 WG2037026 2-Nitrophenol ND 0.0100 1 04/07/2023 02:16 WG2037026 4-Nitrophenol ND 0.0100 1 04/07/2023 02:16 WG2037026 Pentachlorophenol ND 0.0100 1 04/07/2023 02:16 WG2037026 Phenol ND 0.0100 1 04/07/2023 02:16 WG2037026 2,4,6-Trichlorophenol ND 0.0100 1 04/07/2023 02:16 WG2037026 (S) 2-Fluorophenol 13.1 10.0-120 04/07/2023 02:16 WG2037026 (S) Phenol-d5 10.1 10.0-120 04/07/2023 02:16 WG2037026 (S) Nitrobenzene-d5 37.9 10.0-127 04/07/2023 02:16 WG2037026 (S) 2-Fluorobiphenyl 42.3 10.0-130 04/07/2023 02:16 WG2037026 (S) 2,4,6-Tribromophenol 34.3 10.0-155 04/07/2023 02:16 WG2037026 (S) p-Terphenyl-d14 40.5 10.0-128 04/07/2023 02:16 WG2037026 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.179 0.000400 1 04/01/2023 19:18 WG2033707 (S) Nitrobenzene-d5 50.1 10.0-120 04/01/2023 19:18 WG2033707 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 13 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 13 of 37 SAMPLE RESULTS - 04 L1600531 DUP GMW-7 Collected date/time: 03/30/23 10:15 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 04/06/2023 12:11 WG2033924 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0181 0.0100 1 04/05/2023 01:37 WG2034071 Barium,Dissolved 0.206 0.00500 1 04/05/2023 01:37 WG2034071 Cadmium,Dissolved ND 0.00200 1 04/05/2023 01:37 WG2034071 Chromium,Dissolved ND 0.0100 1 04/05/2023 01:37 WG2034071 Iron,Dissolved ND 0.100 1 04/05/2023 01:37 WG2034071 Lead,Dissolved ND 0.00600 1 04/05/2023 01:37 WG2034071 Manganese,Dissolved 0.236 0.0100 1 04/05/2023 01:37 WG2034071 Selenium,Dissolved ND 0.0100 1 04/05/2023 01:37 WG2034071 Silver,Dissolved ND 0.00500 1 04/05/2023 01:37 WG2034071 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 04/05/2023 00:46 WG2035864 Acrolein ND 0.0500 1 04/05/2023 00:46 WG2035864 Acrylonitrile ND 0.0100 1 04/05/2023 00:46 WG2035864 Benzene ND 0.00100 1 04/05/2023 00:46 WG2035864 Bromobenzene ND 0.00100 1 04/05/2023 00:46 WG2035864 Bromodichloromethane ND 0.00100 1 04/05/2023 00:46 WG2035864 Bromoform ND 0.00100 1 04/05/2023 00:46 WG2035864 Bromomethane ND 0.00500 1 04/05/2023 00:46 WG2035864 n-Butylbenzene ND 0.00100 1 04/05/2023 00:46 WG2035864 sec-Butylbenzene ND 0.00100 1 04/05/2023 00:46 WG2035864 tert-Butylbenzene ND 0.00100 1 04/05/2023 00:46 WG2035864 Carbon tetrachloride ND 0.00100 1 04/05/2023 00:46 WG2035864 Chlorobenzene ND 0.00100 1 04/05/2023 00:46 WG2035864 Chlorodibromomethane ND 0.00100 1 04/05/2023 00:46 WG2035864 Chloroethane ND 0.00500 1 04/05/2023 00:46 WG2035864 Chloroform ND 0.00500 1 04/05/2023 00:46 WG2035864 Chloromethane ND 0.00250 1 04/05/2023 00:46 WG2035864 2-Chlorotoluene ND 0.00100 1 04/05/2023 00:46 WG2035864 4-Chlorotoluene ND 0.00100 1 04/05/2023 00:46 WG2035864 1,2-Dibromo-3-Chloropropane ND 0.00500 1 04/05/2023 00:46 WG2035864 1,2-Dibromoethane ND 0.00100 1 04/05/2023 00:46 WG2035864 Dibromomethane ND 0.00100 1 04/05/2023 00:46 WG2035864 1,2-Dichlorobenzene ND 0.00100 1 04/05/2023 00:46 WG2035864 1,3-Dichlorobenzene ND 0.00100 1 04/05/2023 00:46 WG2035864 1,4-Dichlorobenzene ND 0.00100 1 04/05/2023 00:46 WG2035864 Dichlorodifluoromethane ND 0.00500 1 04/05/2023 00:46 WG2035864 1,1-Dichloroethane 0.0360 0.00100 1 04/05/2023 00:46 WG2035864 1,2-Dichloroethane 0.00185 B 0.00100 1 04/05/2023 00:46 WG2035864 1,1-Dichloroethene 0.501 0.0200 20 04/07/2023 17:54 WG2038015 cis-1,2-Dichloroethene 0.00172 0.00100 1 04/05/2023 00:46 WG2035864 trans-1,2-Dichloroethene ND 0.00100 1 04/05/2023 00:46 WG2035864 1,2-Dichloropropane ND 0.00100 1 04/05/2023 00:46 WG2035864 1,1-Dichloropropene ND 0.00100 1 04/05/2023 00:46 WG2035864 1,3-Dichloropropane ND 0.00100 1 04/05/2023 00:46 WG2035864 cis-1,3-Dichloropropene ND 0.00100 1 04/05/2023 00:46 WG2035864 trans-1,3-Dichloropropene ND 0.00100 1 04/05/2023 00:46 WG2035864 2,2-Dichloropropane ND 0.00100 1 04/05/2023 00:46 WG2035864 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 14 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 14 of 37 SAMPLE RESULTS - 04 L1600531 DUP GMW-7 Collected date/time: 03/30/23 10:15 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 04/05/2023 00:46 WG2035864 Ethylbenzene ND 0.00100 1 04/05/2023 00:46 WG2035864 Hexachloro-1,3-butadiene ND 0.00100 1 04/05/2023 00:46 WG2035864 Isopropylbenzene ND 0.00100 1 04/05/2023 00:46 WG2035864 p-Isopropyltoluene ND 0.00100 1 04/05/2023 00:46 WG2035864 2-Butanone (MEK)ND 0.0100 1 04/05/2023 00:46 WG2035864 Methylene Chloride ND 0.00500 1 04/05/2023 00:46 WG2035864 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 04/05/2023 00:46 WG2035864 Methyl tert-butyl ether ND 0.00100 1 04/05/2023 00:46 WG2035864 Naphthalene ND 0.00500 1 04/05/2023 00:46 WG2035864 n-Propylbenzene ND 0.00100 1 04/05/2023 00:46 WG2035864 Styrene ND 0.00100 1 04/05/2023 00:46 WG2035864 1,1,1,2-Tetrachloroethane ND 0.00100 1 04/05/2023 00:46 WG2035864 1,1,2,2-Tetrachloroethane ND 0.00100 1 04/05/2023 00:46 WG2035864 1,1,2-Trichlorotrifluoroethane ND J4 0.00100 1 04/05/2023 00:46 WG2035864 Tetrachloroethene 0.00309 0.00100 1 04/05/2023 00:46 WG2035864 Toluene ND 0.00100 1 04/05/2023 00:46 WG2035864 1,2,3-Trichlorobenzene ND 0.00100 1 04/05/2023 00:46 WG2035864 1,2,4-Trichlorobenzene ND 0.00100 1 04/05/2023 00:46 WG2035864 1,1,1-Trichloroethane 0.00274 0.00100 1 04/05/2023 00:46 WG2035864 1,1,2-Trichloroethane ND 0.00100 1 04/05/2023 00:46 WG2035864 Trichloroethene 0.00285 B 0.00100 1 04/05/2023 00:46 WG2035864 Trichlorofluoromethane ND 0.00500 1 04/05/2023 00:46 WG2035864 1,2,3-Trichloropropane ND 0.00250 1 04/05/2023 00:46 WG2035864 1,2,4-Trimethylbenzene ND 0.00100 1 04/05/2023 00:46 WG2035864 1,2,3-Trimethylbenzene ND 0.00100 1 04/05/2023 00:46 WG2035864 1,3,5-Trimethylbenzene ND 0.00100 1 04/05/2023 00:46 WG2035864 Vinyl chloride ND 0.00100 1 04/05/2023 00:46 WG2035864 Xylenes, Total ND 0.00300 1 04/05/2023 00:46 WG2035864 (S) Toluene-d8 110 80.0-120 04/05/2023 00:46 WG2035864 (S) Toluene-d8 92.1 80.0-120 04/07/2023 17:54 WG2038015 (S) 4-Bromofluorobenzene 86.3 77.0-126 04/05/2023 00:46 WG2035864 (S) 4-Bromofluorobenzene 85.3 77.0-126 04/07/2023 17:54 WG2038015 (S) 1,2-Dichloroethane-d4 102 70.0-130 04/05/2023 00:46 WG2035864 (S) 1,2-Dichloroethane-d4 88.4 70.0-130 04/07/2023 17:54 WG2038015 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 04/07/2023 02:39 WG2037026 Acenaphthylene ND 0.00100 1 04/07/2023 02:39 WG2037026 Anthracene ND 0.00100 1 04/07/2023 02:39 WG2037026 Benzidine ND J4 0.0100 1 04/07/2023 02:39 WG2037026 Benzo(a)anthracene ND 0.00100 1 04/07/2023 02:39 WG2037026 Benzo(b)fluoranthene ND 0.00100 1 04/07/2023 02:39 WG2037026 Benzo(k)fluoranthene ND 0.00100 1 04/07/2023 02:39 WG2037026 Benzo(g,h,i)perylene ND 0.00100 1 04/07/2023 02:39 WG2037026 Benzo(a)pyrene ND 0.00100 1 04/07/2023 02:39 WG2037026 Bis(2-chlorethoxy)methane ND 0.0100 1 04/07/2023 02:39 WG2037026 Bis(2-chloroethyl)ether ND 0.0100 1 04/07/2023 02:39 WG2037026 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 04/07/2023 02:39 WG2037026 4-Bromophenyl-phenylether ND 0.0100 1 04/07/2023 02:39 WG2037026 2-Chloronaphthalene ND 0.00100 1 04/07/2023 02:39 WG2037026 4-Chlorophenyl-phenylether ND 0.0100 1 04/07/2023 02:39 WG2037026 Chrysene ND 0.00100 1 04/07/2023 02:39 WG2037026 Dibenz(a,h)anthracene ND 0.00100 1 04/07/2023 02:39 WG2037026 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 15 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 15 of 37 SAMPLE RESULTS - 04 L1600531 DUP GMW-7 Collected date/time: 03/30/23 10:15 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,2-Dichlorobenzene ND 0.0100 1 04/07/2023 02:39 WG2037026 1,3-Dichlorobenzene ND 0.0100 1 04/07/2023 02:39 WG2037026 1,4-Dichlorobenzene ND 0.0100 1 04/07/2023 02:39 WG2037026 3,3-Dichlorobenzidine ND 0.0100 1 04/07/2023 02:39 WG2037026 2,4-Dinitrotoluene ND 0.0100 1 04/07/2023 02:39 WG2037026 2,6-Dinitrotoluene ND 0.0100 1 04/07/2023 02:39 WG2037026 Fluoranthene ND 0.00100 1 04/07/2023 02:39 WG2037026 Fluorene ND 0.00100 1 04/07/2023 02:39 WG2037026 Hexachlorobenzene ND 0.00100 1 04/07/2023 02:39 WG2037026 Hexachloro-1,3-butadiene ND 0.0100 1 04/07/2023 02:39 WG2037026 Hexachlorocyclopentadiene ND 0.0100 1 04/07/2023 02:39 WG2037026 Hexachloroethane ND 0.0100 1 04/07/2023 02:39 WG2037026 Indeno(1,2,3-cd)pyrene ND 0.00100 1 04/07/2023 02:39 WG2037026 Isophorone ND 0.0100 1 04/07/2023 02:39 WG2037026 Naphthalene ND 0.00100 1 04/07/2023 02:39 WG2037026 Nitrobenzene ND 0.0100 1 04/07/2023 02:39 WG2037026 n-Nitrosodimethylamine ND 0.0100 1 04/07/2023 02:39 WG2037026 n-Nitrosodiphenylamine ND 0.0100 1 04/07/2023 02:39 WG2037026 n-Nitrosodi-n-propylamine ND 0.0100 1 04/07/2023 02:39 WG2037026 Phenanthrene ND 0.00100 1 04/07/2023 02:39 WG2037026 Benzylbutyl phthalate ND 0.00300 1 04/07/2023 02:39 WG2037026 Bis(2-ethylhexyl)phthalate ND 0.00300 1 04/07/2023 02:39 WG2037026 Di-n-butyl phthalate ND 0.00300 1 04/07/2023 02:39 WG2037026 Diethyl phthalate ND 0.00300 1 04/07/2023 02:39 WG2037026 Dimethyl phthalate ND 0.00300 1 04/07/2023 02:39 WG2037026 Di-n-octyl phthalate ND 0.00300 1 04/07/2023 02:39 WG2037026 Pyrene ND 0.00100 1 04/07/2023 02:39 WG2037026 1,2,4-Trichlorobenzene ND 0.0100 1 04/07/2023 02:39 WG2037026 4-Chloro-3-methylphenol ND 0.0100 1 04/07/2023 02:39 WG2037026 2-Chlorophenol ND 0.0100 1 04/07/2023 02:39 WG2037026 2,4-Dichlorophenol ND 0.0100 1 04/07/2023 02:39 WG2037026 2,4-Dimethylphenol ND 0.0100 1 04/07/2023 02:39 WG2037026 4,6-Dinitro-2-methylphenol ND 0.0100 1 04/07/2023 02:39 WG2037026 2,4-Dinitrophenol ND 0.0100 1 04/07/2023 02:39 WG2037026 2-Nitrophenol ND 0.0100 1 04/07/2023 02:39 WG2037026 4-Nitrophenol ND 0.0100 1 04/07/2023 02:39 WG2037026 Pentachlorophenol ND 0.0100 1 04/07/2023 02:39 WG2037026 Phenol ND 0.0100 1 04/07/2023 02:39 WG2037026 2,4,6-Trichlorophenol ND 0.0100 1 04/07/2023 02:39 WG2037026 (S) 2-Fluorophenol 20.6 10.0-120 04/07/2023 02:39 WG2037026 (S) Phenol-d5 15.3 10.0-120 04/07/2023 02:39 WG2037026 (S) Nitrobenzene-d5 51.0 10.0-127 04/07/2023 02:39 WG2037026 (S) 2-Fluorobiphenyl 59.5 10.0-130 04/07/2023 02:39 WG2037026 (S) 2,4,6-Tribromophenol 64.3 10.0-155 04/07/2023 02:39 WG2037026 (S) p-Terphenyl-d14 74.6 10.0-128 04/07/2023 02:39 WG2037026 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.185 0.000400 1 04/01/2023 19:37 WG2033707 (S) Nitrobenzene-d5 53.7 10.0-120 04/01/2023 19:37 WG2033707 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 16 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 16 of 37 QUALITY CONTROL SUMMARYWG2033924 Mercury by Method 7470A L1600531-01,02,03,04 Method Blank (MB) (MB) R3910145-1 04/06/23 11:22 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Mercury,Dissolved U 0.000100 0.000200 Laboratory Control Sample (LCS) (LCS) R3910145-2 04/06/23 11:24 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Mercury,Dissolved 0.00300 0.00301 100 80.0-120 L1600512-04 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1600512-04 04/06/23 11:26 • (MS) R3910145-3 04/06/23 11:29 • (MSD) R3910145-4 04/06/23 11:31 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Mercury,Dissolved 0.00300 ND 0.00292 0.00301 97.3 100 1 75.0-125 3.04 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 17 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 17 of 37 QUALITY CONTROL SUMMARYWG2034071 Metals (ICP) by Method 6010B L1600531-01,02,03,04 Method Blank (MB) (MB) R3909362-1 04/05/23 00:44 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Arsenic,Dissolved U 0.00440 0.0100 Barium,Dissolved 0.000822 J 0.000736 0.00500 Cadmium,Dissolved U 0.000479 0.00200 Chromium,Dissolved U 0.00140 0.0100 Iron,Dissolved U 0.0180 0.100 Lead,Dissolved U 0.00299 0.00600 Manganese,Dissolved U 0.000934 0.0100 Selenium,Dissolved 0.00775 J 0.00735 0.0100 Silver,Dissolved U 0.00154 0.00500 Laboratory Control Sample (LCS) (LCS) R3909362-2 04/05/23 00:46 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Arsenic,Dissolved 1.00 0.955 95.5 80.0-120 Barium,Dissolved 1.00 1.05 105 80.0-120 Cadmium,Dissolved 1.00 1.01 101 80.0-120 Chromium,Dissolved 1.00 1.02 102 80.0-120 Iron,Dissolved 10.0 10.3 103 80.0-120 Lead,Dissolved 1.00 1.02 102 80.0-120 Manganese,Dissolved 1.00 0.964 96.4 80.0-120 Selenium,Dissolved 1.00 0.990 99.0 80.0-120 Silver,Dissolved 0.200 0.175 87.6 80.0-120 L1600537-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1600537-01 04/05/23 00:49 • (MS) R3909362-4 04/05/23 00:54 • (MSD) R3909362-5 04/05/23 00:57 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Arsenic,Dissolved 1.00 ND 0.983 0.969 98.3 96.9 1 75.0-125 1.40 20 Barium,Dissolved 1.00 0.0688 1.10 1.09 103 102 1 75.0-125 0.862 20 Cadmium,Dissolved 1.00 ND 1.01 1.00 101 100 1 75.0-125 0.902 20 Chromium,Dissolved 1.00 ND 0.999 0.989 99.3 98.3 1 75.0-125 0.992 20 Iron,Dissolved 10.0 ND 10.2 10.1 101 101 1 75.0-125 0.412 20 Lead,Dissolved 1.00 ND 1.01 1.00 101 100 1 75.0-125 1.06 20 Manganese,Dissolved 1.00 0.0384 0.969 0.955 93.1 91.6 1 75.0-125 1.49 20 Selenium,Dissolved 1.00 ND 1.02 1.00 102 100 1 75.0-125 1.81 20 Silver,Dissolved 0.200 ND 0.178 0.177 89.0 88.7 1 75.0-125 0.305 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 18 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 18 of 37 QUALITY CONTROL SUMMARYWG2035835 Volatile Organic Compounds (GC/MS) by Method 8260B L1600531-01,02 Method Blank (MB) (MB) R3910637-4 04/04/23 22:24 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acetone U 0.0113 0.0500 Acrolein U 0.00254 0.0500 Acrylonitrile U 0.000671 0.0100 Benzene U 0.0000941 0.00100 Bromobenzene U 0.000118 0.00100 Bromodichloromethane U 0.000136 0.00100 Bromoform U 0.000129 0.00100 Bromomethane U 0.000605 0.00500 n-Butylbenzene U 0.000157 0.00100 sec-Butylbenzene U 0.000125 0.00100 tert-Butylbenzene U 0.000127 0.00100 Carbon tetrachloride U 0.000128 0.00100 Chlorobenzene U 0.000116 0.00100 Chlorodibromomethane U 0.000140 0.00100 Chloroethane U 0.000192 0.00500 Chloroform U 0.000111 0.00500 Chloromethane U 0.000960 0.00250 2-Chlorotoluene U 0.000106 0.00100 4-Chlorotoluene U 0.000114 0.00100 1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1,2-Dibromoethane U 0.000126 0.00100 Dibromomethane U 0.000122 0.00100 1,2-Dichlorobenzene U 0.000107 0.00100 1,3-Dichlorobenzene U 0.000110 0.00100 1,4-Dichlorobenzene U 0.000120 0.00100 Dichlorodifluoromethane U 0.000374 0.00500 1,2-Dichloroethane U 0.0000819 0.00100 1,1-Dichloroethene U 0.000188 0.00100 cis-1,2-Dichloroethene U 0.000126 0.00100 trans-1,2-Dichloroethene U 0.000149 0.00100 1,2-Dichloropropane U 0.000149 0.00100 1,1-Dichloropropene U 0.000142 0.00100 1,3-Dichloropropane U 0.000110 0.00100 cis-1,3-Dichloropropene U 0.000111 0.00100 trans-1,3-Dichloropropene U 0.000118 0.00100 2,2-Dichloropropane U 0.000161 0.00100 Di-isopropyl ether U 0.000105 0.00100 Ethylbenzene U 0.000137 0.00100 Hexachloro-1,3-butadiene U 0.000337 0.00100 Isopropylbenzene U 0.000105 0.00100 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 19 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 19 of 37 QUALITY CONTROL SUMMARYWG2035835 Volatile Organic Compounds (GC/MS) by Method 8260B L1600531-01,02 Method Blank (MB) (MB) R3910637-4 04/04/23 22:24 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l p-Isopropyltoluene U 0.000120 0.00100 2-Butanone (MEK)U 0.00119 0.0100 Methylene Chloride U 0.000430 0.00500 4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100 Methyl tert-butyl ether U 0.000101 0.00100 Naphthalene U 0.00100 0.00500 n-Propylbenzene U 0.0000993 0.00100 Styrene U 0.000118 0.00100 1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 Tetrachloroethene U 0.000300 0.00100 Toluene U 0.000278 0.00100 1,2,3-Trichlorobenzene U 0.000230 0.00100 1,2,4-Trichlorobenzene U 0.000481 0.00100 1,1,1-Trichloroethane U 0.000149 0.00100 1,1,2-Trichloroethane U 0.000158 0.00100 Trichloroethene U 0.000190 0.00100 Trichlorofluoromethane U 0.000160 0.00500 1,2,3-Trichloropropane U 0.000237 0.00250 1,2,4-Trimethylbenzene U 0.000322 0.00100 1,2,3-Trimethylbenzene U 0.000104 0.00100 1,3,5-Trimethylbenzene U 0.000104 0.00100 Vinyl chloride U 0.000234 0.00100 Xylenes, Total U 0.000174 0.00300 (S) Toluene-d8 112 80.0-120 (S) 4-Bromofluorobenzene 103 77.0-126 (S) 1,2-Dichloroethane-d4 114 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3910637-1 04/04/23 20:20 • (LCSD) R3910637-2 04/04/23 20:40 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Acetone 0.0250 0.0293 0.0286 117 114 19.0-160 2.42 27 Acrolein 0.0250 0.0273 0.0279 109 112 10.0-160 2.17 26 Acrylonitrile 0.0250 0.0305 0.0316 122 126 55.0-149 3.54 20 Benzene 0.00500 0.00521 0.00543 104 109 70.0-123 4.14 20 Bromobenzene 0.00500 0.00517 0.00524 103 105 73.0-121 1.34 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 20 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 20 of 37 QUALITY CONTROL SUMMARYWG2035835 Volatile Organic Compounds (GC/MS) by Method 8260B L1600531-01,02 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3910637-1 04/04/23 20:20 • (LCSD) R3910637-2 04/04/23 20:40 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Bromodichloromethane 0.00500 0.00503 0.00508 101 102 75.0-120 0.989 20 Bromoform 0.00500 0.00468 0.00452 93.6 90.4 68.0-132 3.48 20 Bromomethane 0.00500 0.00285 0.00388 57.0 77.6 10.0-160 J3 30.6 25 n-Butylbenzene 0.00500 0.00529 0.00548 106 110 73.0-125 3.53 20 sec-Butylbenzene 0.00500 0.00526 0.00545 105 109 75.0-125 3.55 20 tert-Butylbenzene 0.00500 0.00519 0.00525 104 105 76.0-124 1.15 20 Carbon tetrachloride 0.00500 0.00494 0.00531 98.8 106 68.0-126 7.22 20 Chlorobenzene 0.00500 0.00513 0.00495 103 99.0 80.0-121 3.57 20 Chlorodibromomethane 0.00500 0.00499 0.00469 99.8 93.8 77.0-125 6.20 20 Chloroethane 0.00500 0.00509 0.00540 102 108 47.0-150 5.91 20 Chloroform 0.00500 0.00517 0.00542 103 108 73.0-120 4.72 20 Chloromethane 0.00500 0.00583 0.00595 117 119 41.0-142 2.04 20 2-Chlorotoluene 0.00500 0.00521 0.00534 104 107 76.0-123 2.46 20 4-Chlorotoluene 0.00500 0.00534 0.00559 107 112 75.0-122 4.57 20 1,2-Dibromo-3-Chloropropane 0.00500 0.00511 0.00507 102 101 58.0-134 0.786 20 1,2-Dibromoethane 0.00500 0.00499 0.00499 99.8 99.8 80.0-122 0.000 20 Dibromomethane 0.00500 0.00493 0.00502 98.6 100 80.0-120 1.81 20 1,2-Dichlorobenzene 0.00500 0.00502 0.00525 100 105 79.0-121 4.48 20 1,3-Dichlorobenzene 0.00500 0.00493 0.00522 98.6 104 79.0-120 5.71 20 1,4-Dichlorobenzene 0.00500 0.00494 0.00510 98.8 102 79.0-120 3.19 20 Dichlorodifluoromethane 0.00500 0.00566 0.00556 113 111 51.0-149 1.78 20 1,2-Dichloroethane 0.00500 0.00528 0.00565 106 113 70.0-128 6.77 20 1,1-Dichloroethene 0.00500 0.00491 0.00523 98.2 105 71.0-124 6.31 20 cis-1,2-Dichloroethene 0.00500 0.00491 0.00519 98.2 104 73.0-120 5.54 20 trans-1,2-Dichloroethene 0.00500 0.00497 0.00548 99.4 110 73.0-120 9.76 20 1,2-Dichloropropane 0.00500 0.00537 0.00551 107 110 77.0-125 2.57 20 1,1-Dichloropropene 0.00500 0.00534 0.00554 107 111 74.0-126 3.68 20 1,3-Dichloropropane 0.00500 0.00524 0.00532 105 106 80.0-120 1.52 20 cis-1,3-Dichloropropene 0.00500 0.00500 0.00518 100 104 80.0-123 3.54 20 trans-1,3-Dichloropropene 0.00500 0.00487 0.00496 97.4 99.2 78.0-124 1.83 20 2,2-Dichloropropane 0.00500 0.00489 0.00544 97.8 109 58.0-130 10.6 20 Di-isopropyl ether 0.00500 0.00576 0.00582 115 116 58.0-138 1.04 20 Ethylbenzene 0.00500 0.00513 0.00506 103 101 79.0-123 1.37 20 Hexachloro-1,3-butadiene 0.00500 0.00477 0.00515 95.4 103 54.0-138 7.66 20 Isopropylbenzene 0.00500 0.00507 0.00511 101 102 76.0-127 0.786 20 p-Isopropyltoluene 0.00500 0.00515 0.00525 103 105 76.0-125 1.92 20 2-Butanone (MEK)0.0250 0.0317 0.0323 127 129 44.0-160 1.87 20 Methylene Chloride 0.00500 0.00498 0.00521 99.6 104 67.0-120 4.51 20 4-Methyl-2-pentanone (MIBK)0.0250 0.0301 0.0300 120 120 68.0-142 0.333 20 Methyl tert-butyl ether 0.00500 0.00532 0.00547 106 109 68.0-125 2.78 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 21 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 21 of 37 QUALITY CONTROL SUMMARYWG2035835 Volatile Organic Compounds (GC/MS) by Method 8260B L1600531-01,02 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3910637-1 04/04/23 20:20 • (LCSD) R3910637-2 04/04/23 20:40 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Naphthalene 0.00500 0.00485 0.00512 97.0 102 54.0-135 5.42 20 n-Propylbenzene 0.00500 0.00529 0.00544 106 109 77.0-124 2.80 20 Styrene 0.00500 0.00478 0.00501 95.6 100 73.0-130 4.70 20 1,1,1,2-Tetrachloroethane 0.00500 0.00475 0.00479 95.0 95.8 75.0-125 0.839 20 1,1,2,2-Tetrachloroethane 0.00500 0.00523 0.00521 105 104 65.0-130 0.383 20 1,1,2-Trichlorotrifluoroethane 0.00500 0.00518 0.00543 104 109 69.0-132 4.71 20 Tetrachloroethene 0.00500 0.00513 0.00503 103 101 72.0-132 1.97 20 Toluene 0.00500 0.00530 0.00525 106 105 79.0-120 0.948 20 1,2,3-Trichlorobenzene 0.00500 0.00527 0.00586 105 117 50.0-138 10.6 20 1,2,4-Trichlorobenzene 0.00500 0.00483 0.00532 96.6 106 57.0-137 9.66 20 1,1,1-Trichloroethane 0.00500 0.00523 0.00538 105 108 73.0-124 2.83 20 1,1,2-Trichloroethane 0.00500 0.00515 0.00516 103 103 80.0-120 0.194 20 Trichloroethene 0.00500 0.00497 0.00543 99.4 109 78.0-124 8.85 20 Trichlorofluoromethane 0.00500 0.00514 0.00544 103 109 59.0-147 5.67 20 1,2,3-Trichloropropane 0.00500 0.00558 0.00546 112 109 73.0-130 2.17 20 1,2,4-Trimethylbenzene 0.00500 0.00526 0.00530 105 106 76.0-121 0.758 20 1,2,3-Trimethylbenzene 0.00500 0.00512 0.00546 102 109 77.0-120 6.43 20 1,3,5-Trimethylbenzene 0.00500 0.00519 0.00535 104 107 76.0-122 3.04 20 Vinyl chloride 0.00500 0.00572 0.00575 114 115 67.0-131 0.523 20 Xylenes, Total 0.0150 0.0149 0.0151 99.3 101 79.0-123 1.33 20 (S) Toluene-d8 113 110 80.0-120 (S) 4-Bromofluorobenzene 106 103 77.0-126 (S) 1,2-Dichloroethane-d4 111 111 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 22 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 22 of 37 QUALITY CONTROL SUMMARYWG2035864 Volatile Organic Compounds (GC/MS) by Method 8260B L1600531-03,04 Method Blank (MB) (MB) R3910355-2 04/04/23 23:33 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acetone U 0.0113 0.0500 Acrolein U 0.00254 0.0500 Acrylonitrile U 0.000671 0.0100 Benzene U 0.0000941 0.00100 Bromobenzene U 0.000118 0.00100 Bromodichloromethane U 0.000136 0.00100 Bromoform U 0.000129 0.00100 Bromomethane U 0.000605 0.00500 n-Butylbenzene U 0.000157 0.00100 sec-Butylbenzene U 0.000125 0.00100 tert-Butylbenzene U 0.000127 0.00100 Carbon tetrachloride U 0.000128 0.00100 Chlorobenzene U 0.000116 0.00100 Chlorodibromomethane U 0.000140 0.00100 Chloroethane U 0.000192 0.00500 Chloroform U 0.000111 0.00500 Chloromethane U 0.000960 0.00250 2-Chlorotoluene U 0.000106 0.00100 4-Chlorotoluene U 0.000114 0.00100 1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1,2-Dibromoethane U 0.000126 0.00100 Dibromomethane U 0.000122 0.00100 1,2-Dichlorobenzene U 0.000107 0.00100 1,3-Dichlorobenzene U 0.000110 0.00100 1,4-Dichlorobenzene U 0.000120 0.00100 Dichlorodifluoromethane U 0.000374 0.00500 1,1-Dichloroethane U 0.000100 0.00100 1,2-Dichloroethane 0.000576 J 0.0000819 0.00100 cis-1,2-Dichloroethene U 0.000126 0.00100 trans-1,2-Dichloroethene U 0.000149 0.00100 1,2-Dichloropropane U 0.000149 0.00100 1,1-Dichloropropene U 0.000142 0.00100 1,3-Dichloropropane U 0.000110 0.00100 cis-1,3-Dichloropropene U 0.000111 0.00100 trans-1,3-Dichloropropene U 0.000118 0.00100 2,2-Dichloropropane U 0.000161 0.00100 Di-isopropyl ether U 0.000105 0.00100 Ethylbenzene U 0.000137 0.00100 Hexachloro-1,3-butadiene U 0.000337 0.00100 Isopropylbenzene U 0.000105 0.00100 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 23 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 23 of 37 QUALITY CONTROL SUMMARYWG2035864 Volatile Organic Compounds (GC/MS) by Method 8260B L1600531-03,04 Method Blank (MB) (MB) R3910355-2 04/04/23 23:33 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l p-Isopropyltoluene U 0.000120 0.00100 2-Butanone (MEK)U 0.00119 0.0100 Methylene Chloride U 0.000430 0.00500 4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100 Methyl tert-butyl ether U 0.000101 0.00100 Naphthalene U 0.00100 0.00500 n-Propylbenzene U 0.0000993 0.00100 Styrene U 0.000118 0.00100 1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 Tetrachloroethene U 0.000300 0.00100 Toluene U 0.000278 0.00100 1,2,3-Trichlorobenzene U 0.000230 0.00100 1,2,4-Trichlorobenzene U 0.000481 0.00100 1,1,1-Trichloroethane U 0.000149 0.00100 1,1,2-Trichloroethane U 0.000158 0.00100 Trichloroethene 0.000925 J 0.000190 0.00100 Trichlorofluoromethane U 0.000160 0.00500 1,2,3-Trichloropropane U 0.000237 0.00250 1,2,4-Trimethylbenzene U 0.000322 0.00100 1,2,3-Trimethylbenzene U 0.000104 0.00100 1,3,5-Trimethylbenzene U 0.000104 0.00100 Vinyl chloride U 0.000234 0.00100 Xylenes, Total U 0.000174 0.00300 (S) Toluene-d8 112 80.0-120 (S) 4-Bromofluorobenzene 82.9 77.0-126 (S) 1,2-Dichloroethane-d4 98.3 70.0-130 Laboratory Control Sample (LCS) (LCS) R3910355-1 04/04/23 22:52 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Acetone 0.0250 0.0346 138 19.0-160 Acrolein 0.0250 0.0131 52.4 10.0-160 Acrylonitrile 0.0250 0.0320 128 55.0-149 Benzene 0.00500 0.00546 109 70.0-123 Bromobenzene 0.00500 0.00517 103 73.0-121 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 24 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 24 of 37 QUALITY CONTROL SUMMARYWG2035864 Volatile Organic Compounds (GC/MS) by Method 8260B L1600531-03,04 Laboratory Control Sample (LCS) (LCS) R3910355-1 04/04/23 22:52 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Bromodichloromethane 0.00500 0.00518 104 75.0-120 Bromoform 0.00500 0.00539 108 68.0-132 Bromomethane 0.00500 0.00516 103 10.0-160 n-Butylbenzene 0.00500 0.00447 89.4 73.0-125 sec-Butylbenzene 0.00500 0.00496 99.2 75.0-125 tert-Butylbenzene 0.00500 0.00498 99.6 76.0-124 Carbon tetrachloride 0.00500 0.00488 97.6 68.0-126 Chlorobenzene 0.00500 0.00600 120 80.0-121 Chlorodibromomethane 0.00500 0.00565 113 77.0-125 Chloroethane 0.00500 0.00433 86.6 47.0-150 Chloroform 0.00500 0.00524 105 73.0-120 Chloromethane 0.00500 0.00420 84.0 41.0-142 2-Chlorotoluene 0.00500 0.00562 112 76.0-123 4-Chlorotoluene 0.00500 0.00532 106 75.0-122 1,2-Dibromo-3-Chloropropane 0.00500 0.00496 99.2 58.0-134 1,2-Dibromoethane 0.00500 0.00555 111 80.0-122 Dibromomethane 0.00500 0.00589 118 80.0-120 1,2-Dichlorobenzene 0.00500 0.00485 97.0 79.0-121 1,3-Dichlorobenzene 0.00500 0.00526 105 79.0-120 1,4-Dichlorobenzene 0.00500 0.00534 107 79.0-120 Dichlorodifluoromethane 0.00500 0.00442 88.4 51.0-149 1,1-Dichloroethane 0.00500 0.00503 101 70.0-126 1,2-Dichloroethane 0.00500 0.00521 104 70.0-128 cis-1,2-Dichloroethene 0.00500 0.00545 109 73.0-120 trans-1,2-Dichloroethene 0.00500 0.00535 107 73.0-120 1,2-Dichloropropane 0.00500 0.00537 107 77.0-125 1,1-Dichloropropene 0.00500 0.00481 96.2 74.0-126 1,3-Dichloropropane 0.00500 0.00537 107 80.0-120 cis-1,3-Dichloropropene 0.00500 0.00493 98.6 80.0-123 trans-1,3-Dichloropropene 0.00500 0.00508 102 78.0-124 2,2-Dichloropropane 0.00500 0.00472 94.4 58.0-130 Di-isopropyl ether 0.00500 0.00484 96.8 58.0-138 Ethylbenzene 0.00500 0.00529 106 79.0-123 Hexachloro-1,3-butadiene 0.00500 0.00481 96.2 54.0-138 Isopropylbenzene 0.00500 0.00489 97.8 76.0-127 p-Isopropyltoluene 0.00500 0.00466 93.2 76.0-125 2-Butanone (MEK)0.0250 0.0301 120 44.0-160 Methylene Chloride 0.00500 0.00522 104 67.0-120 4-Methyl-2-pentanone (MIBK)0.0250 0.0300 120 68.0-142 Methyl tert-butyl ether 0.00500 0.00356 71.2 68.0-125 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 25 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 25 of 37 QUALITY CONTROL SUMMARYWG2035864 Volatile Organic Compounds (GC/MS) by Method 8260B L1600531-03,04 Laboratory Control Sample (LCS) (LCS) R3910355-1 04/04/23 22:52 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Naphthalene 0.00500 0.00325 65.0 54.0-135 n-Propylbenzene 0.00500 0.00520 104 77.0-124 Styrene 0.00500 0.00500 100 73.0-130 1,1,1,2-Tetrachloroethane 0.00500 0.00544 109 75.0-125 1,1,2,2-Tetrachloroethane 0.00500 0.00541 108 65.0-130 1,1,2-Trichlorotrifluoroethane 0.00500 0.00318 63.6 69.0-132 J4 Tetrachloroethene 0.00500 0.00583 117 72.0-132 Toluene 0.00500 0.00581 116 79.0-120 1,2,3-Trichlorobenzene 0.00500 0.00386 77.2 50.0-138 1,2,4-Trichlorobenzene 0.00500 0.00378 75.6 57.0-137 1,1,1-Trichloroethane 0.00500 0.00476 95.2 73.0-124 1,1,2-Trichloroethane 0.00500 0.00590 118 80.0-120 Trichloroethene 0.00500 0.00602 120 78.0-124 Trichlorofluoromethane 0.00500 0.00540 108 59.0-147 1,2,3-Trichloropropane 0.00500 0.00610 122 73.0-130 1,2,4-Trimethylbenzene 0.00500 0.00493 98.6 76.0-121 1,2,3-Trimethylbenzene 0.00500 0.00500 100 77.0-120 1,3,5-Trimethylbenzene 0.00500 0.00536 107 76.0-122 Vinyl chloride 0.00500 0.00402 80.4 67.0-131 Xylenes, Total 0.0150 0.0161 107 79.0-123 (S) Toluene-d8 114 80.0-120 (S) 4-Bromofluorobenzene 90.4 77.0-126 (S) 1,2-Dichloroethane-d4 100 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 26 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 26 of 37 QUALITY CONTROL SUMMARYWG2038015 Volatile Organic Compounds (GC/MS) by Method 8260B L1600531-03,04 Method Blank (MB) (MB) R3910939-3 04/07/23 15:30 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,1-Dichloroethene U 0.000188 0.00100 (S) Toluene-d8 92.5 80.0-120 (S) 4-Bromofluorobenzene 84.1 77.0-126 (S) 1,2-Dichloroethane-d4 92.9 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3910939-1 04/07/23 14:26 • (LCSD) R3910939-2 04/07/23 14:48 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 1,1-Dichloroethene 0.00500 0.00535 0.00532 107 106 71.0-124 0.562 20 (S) Toluene-d8 91.1 90.2 80.0-120 (S) 4-Bromofluorobenzene 87.8 84.8 77.0-126 (S) 1,2-Dichloroethane-d4 92.0 95.2 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 27 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 27 of 37 QUALITY CONTROL SUMMARYWG2038018 Volatile Organic Compounds (GC/MS) by Method 8260B L1600531-01,02 Method Blank (MB) (MB) R3910940-3 04/07/23 15:30 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Chloroethane U 0.000192 0.00500 1,1-Dichloroethane U 0.000100 0.00100 (S) Toluene-d8 92.5 80.0-120 (S) 4-Bromofluorobenzene 84.1 77.0-126 (S) 1,2-Dichloroethane-d4 92.9 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3910940-1 04/07/23 14:26 • (LCSD) R3910940-2 04/07/23 14:48 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Chloroethane 0.00500 0.00500 0.00516 100 103 47.0-150 3.15 20 1,1-Dichloroethane 0.00500 0.00543 0.00503 109 101 70.0-126 7.65 20 (S) Toluene-d8 91.1 90.2 80.0-120 (S) 4-Bromofluorobenzene 87.8 84.8 77.0-126 (S) 1,2-Dichloroethane-d4 92.0 95.2 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 28 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 28 of 37 QUALITY CONTROL SUMMARYWG2037026 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1600531-01,02,03,04 Method Blank (MB) (MB) R3910688-2 04/06/23 23:02 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acenaphthene U 0.0000886 0.00100 Acenaphthylene U 0.0000921 0.00100 Anthracene U 0.0000804 0.00100 Benzidine U 0.00374 0.0100 Benzo(a)anthracene U 0.000199 0.00100 Benzo(b)fluoranthene U 0.000130 0.00100 Benzo(k)fluoranthene U 0.000120 0.00100 Benzo(g,h,i)perylene U 0.000121 0.00100 Benzo(a)pyrene U 0.0000381 0.00100 Bis(2-chlorethoxy)methane U 0.000116 0.0100 Bis(2-chloroethyl)ether U 0.000137 0.0100 2,2-Oxybis(1-Chloropropane)U 0.000210 0.0100 4-Bromophenyl-phenylether U 0.0000877 0.0100 2-Chloronaphthalene U 0.0000648 0.00100 4-Chlorophenyl-phenylether U 0.0000926 0.0100 Chrysene U 0.000130 0.00100 Dibenz(a,h)anthracene U 0.0000644 0.00100 1,2-Dichlorobenzene U 0.0000713 0.0100 1,3-Dichlorobenzene U 0.000132 0.0100 1,4-Dichlorobenzene U 0.0000942 0.0100 3,3-Dichlorobenzidine U 0.000212 0.0100 2,4-Dinitrotoluene U 0.0000983 0.0100 2,6-Dinitrotoluene U 0.000250 0.0100 Fluoranthene U 0.000102 0.00100 Fluorene U 0.0000844 0.00100 Hexachlorobenzene U 0.0000755 0.00100 Hexachloro-1,3-butadiene U 0.0000968 0.0100 Hexachlorocyclopentadiene U 0.0000598 0.0100 Hexachloroethane U 0.000127 0.0100 Indeno(1,2,3-cd)pyrene U 0.000279 0.00100 Isophorone U 0.000143 0.0100 Naphthalene U 0.000159 0.00100 Nitrobenzene U 0.000297 0.0100 n-Nitrosodimethylamine U 0.000998 0.0100 n-Nitrosodiphenylamine U 0.00237 0.0100 n-Nitrosodi-n-propylamine U 0.000261 0.0100 Phenanthrene U 0.000112 0.00100 Benzylbutyl phthalate U 0.000765 0.00300 Bis(2-ethylhexyl)phthalate U 0.000895 0.00300 Di-n-butyl phthalate U 0.000453 0.00300 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 29 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 29 of 37 QUALITY CONTROL SUMMARYWG2037026 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1600531-01,02,03,04 Method Blank (MB) (MB) R3910688-2 04/06/23 23:02 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Diethyl phthalate U 0.000287 0.00300 Dimethyl phthalate U 0.000260 0.00300 Di-n-octyl phthalate U 0.000932 0.00300 Pyrene U 0.000107 0.00100 1,2,4-Trichlorobenzene U 0.0000698 0.0100 4-Chloro-3-methylphenol U 0.000131 0.0100 2-Chlorophenol U 0.000133 0.0100 2,4-Dichlorophenol U 0.000102 0.0100 2,4-Dimethylphenol U 0.0000636 0.0100 4,6-Dinitro-2-methylphenol U 0.00112 0.0100 2,4-Dinitrophenol U 0.00593 0.0100 2-Nitrophenol U 0.000117 0.0100 4-Nitrophenol U 0.000143 0.0100 Pentachlorophenol U 0.000313 0.0100 Phenol U 0.00433 0.0100 2,4,6-Trichlorophenol U 0.000100 0.0100 (S) 2-Fluorophenol 30.0 10.0-120 (S) Phenol-d5 19.3 10.0-120 (S) Nitrobenzene-d5 64.0 10.0-127 (S) 2-Fluorobiphenyl 69.4 10.0-130 (S) 2,4,6-Tribromophenol 77.0 10.0-155 (S) p-Terphenyl-d14 87.7 10.0-128 Laboratory Control Sample (LCS) (LCS) R3910688-1 04/06/23 22:40 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Acenaphthene 0.0500 0.0320 64.0 41.0-120 Acenaphthylene 0.0500 0.0340 68.0 43.0-120 Anthracene 0.0500 0.0378 75.6 45.0-120 Benzidine 0.100 0.000 0.000 10.0-120 J4 Benzo(a)anthracene 0.0500 0.0423 84.6 47.0-120 Benzo(b)fluoranthene 0.0500 0.0432 86.4 46.0-120 Benzo(k)fluoranthene 0.0500 0.0405 81.0 46.0-120 Benzo(g,h,i)perylene 0.0500 0.0360 72.0 48.0-121 Benzo(a)pyrene 0.0500 0.0425 85.0 47.0-120 Bis(2-chlorethoxy)methane 0.0500 0.0286 57.2 33.0-120 Bis(2-chloroethyl)ether 0.0500 0.0274 54.8 23.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 30 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 30 of 37 QUALITY CONTROL SUMMARYWG2037026 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1600531-01,02,03,04 Laboratory Control Sample (LCS) (LCS) R3910688-1 04/06/23 22:40 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2,2-Oxybis(1-Chloropropane)0.0500 0.0272 54.4 28.0-120 4-Bromophenyl-phenylether 0.0500 0.0409 81.8 45.0-120 2-Chloronaphthalene 0.0500 0.0321 64.2 37.0-120 4-Chlorophenyl-phenylether 0.0500 0.0346 69.2 44.0-120 Chrysene 0.0500 0.0411 82.2 48.0-120 Dibenz(a,h)anthracene 0.0500 0.0371 74.2 47.0-120 1,2-Dichlorobenzene 0.0500 0.0267 53.4 20.0-120 1,3-Dichlorobenzene 0.0500 0.0269 53.8 17.0-120 1,4-Dichlorobenzene 0.0500 0.0266 53.2 18.0-120 3,3-Dichlorobenzidine 0.100 0.0485 48.5 44.0-120 2,4-Dinitrotoluene 0.0500 0.0396 79.2 49.0-124 2,6-Dinitrotoluene 0.0500 0.0365 73.0 46.0-120 Fluoranthene 0.0500 0.0382 76.4 51.0-120 Fluorene 0.0500 0.0335 67.0 47.0-120 Hexachlorobenzene 0.0500 0.0410 82.0 44.0-120 Hexachloro-1,3-butadiene 0.0500 0.0285 57.0 19.0-120 Hexachlorocyclopentadiene 0.0500 0.0237 47.4 15.0-120 Hexachloroethane 0.0500 0.0244 48.8 15.0-120 Indeno(1,2,3-cd)pyrene 0.0500 0.0337 67.4 49.0-122 Isophorone 0.0500 0.0279 55.8 36.0-120 Naphthalene 0.0500 0.0272 54.4 27.0-120 Nitrobenzene 0.0500 0.0265 53.0 27.0-120 n-Nitrosodimethylamine 0.0500 0.0154 30.8 10.0-120 n-Nitrosodiphenylamine 0.0500 0.0368 73.6 47.0-120 n-Nitrosodi-n-propylamine 0.0500 0.0282 56.4 31.0-120 Phenanthrene 0.0500 0.0375 75.0 46.0-120 Benzylbutyl phthalate 0.0500 0.0414 82.8 43.0-121 Bis(2-ethylhexyl)phthalate 0.0500 0.0394 78.8 43.0-122 Di-n-butyl phthalate 0.0500 0.0379 75.8 49.0-121 Diethyl phthalate 0.0500 0.0347 69.4 48.0-122 Dimethyl phthalate 0.0500 0.0346 69.2 48.0-120 Di-n-octyl phthalate 0.0500 0.0369 73.8 42.0-125 Pyrene 0.0500 0.0445 89.0 47.0-120 1,2,4-Trichlorobenzene 0.0500 0.0282 56.4 24.0-120 4-Chloro-3-methylphenol 0.0500 0.0240 48.0 40.0-120 2-Chlorophenol 0.0500 0.0197 39.4 25.0-120 2,4-Dichlorophenol 0.0500 0.0266 53.2 36.0-120 2,4-Dimethylphenol 0.0500 0.0235 47.0 33.0-120 4,6-Dinitro-2-methylphenol 0.0500 0.0521 104 38.0-138 2,4-Dinitrophenol 0.0500 0.0461 92.2 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 31 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 31 of 37 QUALITY CONTROL SUMMARYWG2037026 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1600531-01,02,03,04 Laboratory Control Sample (LCS) (LCS) R3910688-1 04/06/23 22:40 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2-Nitrophenol 0.0500 0.0302 60.4 31.0-120 4-Nitrophenol 0.0500 0.0142 28.4 10.0-120 Pentachlorophenol 0.0500 0.0396 79.2 23.0-120 Phenol 0.0500 0.0101 20.2 10.0-120 2,4,6-Trichlorophenol 0.0500 0.0362 72.4 42.0-120 (S) 2-Fluorophenol 25.9 10.0-120 (S) Phenol-d5 19.8 10.0-120 (S) Nitrobenzene-d5 53.0 10.0-127 (S) 2-Fluorobiphenyl 69.6 10.0-130 (S) 2,4,6-Tribromophenol 89.5 10.0-155 (S) p-Terphenyl-d14 94.1 10.0-128 L1602136-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1602136-01 04/07/23 00:07 • (MS) R3910688-3 04/07/23 00:29 • (MSD) R3910688-4 04/07/23 00:50 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Acenaphthene 0.0500 ND 0.0306 0.0325 61.2 65.0 1 28.0-120 6.02 25 Acenaphthylene 0.0500 ND 0.0325 0.0348 65.0 69.6 1 31.0-121 6.84 25 Anthracene 0.0500 ND 0.0342 0.0363 68.4 72.6 1 36.0-120 5.96 23 Benzidine 0.100 ND ND ND 0.000 0.000 1 10.0-120 J6 J6 0.000 37 Benzo(a)anthracene 0.0500 ND 0.0385 0.0403 76.5 80.1 1 39.0-120 4.57 23 Benzo(b)fluoranthene 0.0500 ND 0.0394 0.0403 78.4 80.2 1 37.0-120 2.26 23 Benzo(k)fluoranthene 0.0500 ND 0.0367 0.0397 73.0 79.0 1 37.0-120 7.85 26 Benzo(g,h,i)perylene 0.0500 ND 0.0333 0.0359 66.4 71.6 1 37.0-123 7.51 25 Benzo(a)pyrene 0.0500 ND 0.0379 0.0405 75.6 80.8 1 37.0-120 6.63 24 Bis(2-chlorethoxy)methane 0.0500 ND 0.0233 0.0252 46.6 50.4 1 17.0-120 7.84 31 Bis(2-chloroethyl)ether 0.0500 ND 0.0264 0.0283 52.8 56.6 1 14.0-120 6.95 33 2,2-Oxybis(1-Chloropropane)0.0500 ND 0.0238 0.0268 47.6 53.6 1 18.0-120 11.9 34 4-Bromophenyl-phenylether 0.0500 ND 0.0393 0.0403 78.6 80.6 1 37.0-120 2.51 24 2-Chloronaphthalene 0.0500 ND 0.0299 0.0327 59.8 65.4 1 29.0-120 8.95 28 4-Chlorophenyl-phenylether 0.0500 ND 0.0332 0.0345 66.4 69.0 1 36.0-120 3.84 23 Chrysene 0.0500 ND 0.0380 0.0396 75.6 78.8 1 38.0-120 4.12 23 Dibenz(a,h)anthracene 0.0500 ND 0.0340 0.0369 67.8 73.5 1 36.0-121 8.18 24 1,2-Dichlorobenzene 0.0500 ND 0.0236 0.0267 47.2 53.4 1 18.0-120 12.3 40 1,3-Dichlorobenzene 0.0500 ND 0.0233 0.0267 46.6 53.4 1 15.0-120 13.6 40 1,4-Dichlorobenzene 0.0500 ND 0.0235 0.0270 47.0 54.0 1 17.0-120 13.9 40 3,3-Dichlorobenzidine 0.100 ND 0.0319 0.0488 31.9 48.8 1 10.0-134 J3 41.9 30 2,4-Dinitrotoluene 0.0500 ND 0.0377 0.0389 75.4 77.8 1 39.0-125 3.13 25 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 32 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 32 of 37 QUALITY CONTROL SUMMARYWG2037026 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1600531-01,02,03,04 L1602136-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1602136-01 04/07/23 00:07 • (MS) R3910688-3 04/07/23 00:29 • (MSD) R3910688-4 04/07/23 00:50 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% 2,6-Dinitrotoluene 0.0500 ND 0.0349 0.0364 69.8 72.8 1 36.0-120 4.21 27 Fluoranthene 0.0500 ND 0.0359 0.0373 71.8 74.6 1 41.0-121 3.83 22 Fluorene 0.0500 ND 0.0317 0.0336 63.4 67.2 1 37.0-120 5.82 24 Hexachlorobenzene 0.0500 ND 0.0388 0.0393 77.6 78.6 1 35.0-122 1.28 24 Hexachloro-1,3-butadiene 0.0500 ND 0.0215 0.0244 43.0 48.8 1 12.0-120 12.6 34 Hexachlorocyclopentadiene 0.0500 ND 0.0244 0.0275 48.8 55.0 1 10.0-120 11.9 33 Hexachloroethane 0.0500 ND 0.0218 0.0250 43.6 50.0 1 10.0-120 13.7 40 Indeno(1,2,3-cd)pyrene 0.0500 ND 0.0311 0.0338 62.2 67.6 1 38.0-125 8.32 24 Isophorone 0.0500 ND 0.0217 0.0235 43.4 47.0 1 21.0-120 7.96 27 Naphthalene 0.0500 ND 0.0199 0.0223 39.8 44.6 1 10.0-120 11.4 31 Nitrobenzene 0.0500 ND 0.0204 0.0227 40.8 45.4 1 12.0-120 10.7 30 n-Nitrosodimethylamine 0.0500 ND ND ND 0.000 0.000 1 10.0-120 J6 J6 0.000 40 n-Nitrosodiphenylamine 0.0500 ND 0.0341 0.0357 68.2 71.4 1 37.0-120 4.58 24 n-Nitrosodi-n-propylamine 0.0500 ND 0.0244 0.0275 48.8 55.0 1 16.0-120 11.9 30 Phenanthrene 0.0500 ND 0.0365 0.0372 73.0 74.4 1 33.0-120 1.90 22 Benzylbutyl phthalate 0.0500 ND 0.0387 0.0398 77.4 79.6 1 34.0-126 2.80 24 Bis(2-ethylhexyl)phthalate 0.0500 ND 0.0359 0.0380 69.5 73.7 1 33.0-126 5.68 25 Di-n-butyl phthalate 0.0500 ND 0.0356 0.0377 71.2 75.4 1 35.0-128 5.73 23 Diethyl phthalate 0.0500 ND 0.0334 0.0346 66.8 69.2 1 39.0-125 3.53 24 Dimethyl phthalate 0.0500 ND 0.0336 0.0345 67.2 69.0 1 37.0-120 2.64 24 Di-n-octyl phthalate 0.0500 ND 0.0327 0.0358 65.4 71.6 1 25.0-135 9.05 26 Pyrene 0.0500 ND 0.0425 0.0420 84.8 83.8 1 39.0-120 1.18 22 1,2,4-Trichlorobenzene 0.0500 ND 0.0215 0.0240 43.0 48.0 1 15.0-120 11.0 31 4-Chloro-3-methylphenol 0.0500 ND 0.0205 0.0234 41.0 46.8 1 26.0-120 13.2 27 2-Chlorophenol 0.0500 ND 0.0191 0.0238 38.2 47.6 1 18.0-120 21.9 34 2,4-Dichlorophenol 0.0500 ND 0.0216 0.0252 43.2 50.4 1 19.0-120 15.4 27 2,4-Dimethylphenol 0.0500 ND 0.0195 0.0230 39.0 46.0 1 15.0-120 16.5 28 4,6-Dinitro-2-methylphenol 0.0500 ND 0.0481 0.0495 96.2 99.0 1 10.0-144 2.87 39 2,4-Dinitrophenol 0.0500 ND 0.0478 0.0495 95.6 99.0 1 10.0-120 3.49 40 2-Nitrophenol 0.0500 ND 0.0227 0.0262 45.4 52.4 1 20.0-120 14.3 30 4-Nitrophenol 0.0500 ND 0.0152 0.0173 30.4 34.6 1 10.0-120 12.9 40 Pentachlorophenol 0.0500 ND 0.0430 0.0445 86.0 89.0 1 10.0-128 3.43 37 Phenol 0.0500 ND ND 0.0120 19.2 24.0 1 10.0-120 22.4 40 2,4,6-Trichlorophenol 0.0500 ND 0.0362 0.0387 71.1 76.1 1 26.0-120 6.68 31 (S) 2-Fluorophenol 25.6 32.5 10.0-120 (S) Phenol-d5 18.9 23.5 10.0-120 (S) Nitrobenzene-d5 40.4 46.0 10.0-127 (S) 2-Fluorobiphenyl 63.3 68.6 10.0-130 (S) 2,4,6-Tribromophenol 83.5 84.0 10.0-155 (S) p-Terphenyl-d14 84.3 86.5 10.0-128 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 33 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 33 of 37 QUALITY CONTROL SUMMARYWG2033707 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1600531-01,02,03,04 Method Blank (MB) (MB) R3908310-3 04/01/23 14:27 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,4-Dioxane 0.000141 J 0.0000447 0.000400 (S) Nitrobenzene-d5 38.5 10.0-120 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3908310-1 04/01/23 13:49 • (LCSD) R3908310-2 04/01/23 14:08 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 1,4-Dioxane 0.0500 0.0539 0.0544 108 109 73.0-146 0.923 20 (S) Nitrobenzene-d5 60.9 49.7 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 34 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 34 of 37 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (S) Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be detected in all environmental media. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description B The same analyte is found in the associated blank. J The identification of the analyte is acceptable; the reported value is an estimate. J3 The associated batch QC was outside the established quality control range for precision. J4 The associated batch QC was outside the established quality control range for accuracy. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 35 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 35 of 37 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/09/23 12:33 36 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 221020 L1600531 04/10/23 13:13 36 of 37 ANALYTICAL REPORT September 19, 2023 Tetra Tech Inc. - UT Sample Delivery Group:L1653392 Samples Received:09/07/2023 Project Number: Description:Chromalox Report To:Michael Ozier 4750 West 2100 South Suite 400 Salt Lake City, UT 84120 Entire Report Reviewed By: September 19, 2023 [Preliminary Report] Chris Ward Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 1 of 82 September 19, 2023 Chris Ward Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 1 of 82 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 6 Sr: Sample Results 7 MW-1 L1653392-01 7 GMW-5 L1653392-02 10 DUP GMW-5 L1653392-03 13 GMW-4 L1653392-04 16 MW-5 L1653392-05 19 MW-7 L1653392-06 22 MW-12D L1653392-07 25 MW-12S L1653392-08 28 MW-17 L1653392-09 31 MW-18 L1653392-10 34 MW-13D L1653392-11 37 MW-13S L1653392-12 40 MW-8 L1653392-13 43 GMW-8 L1653392-14 45 MW-9 L1653392-15 47 Qc: Quality Control Summary 49 Mercury by Method 7470A 49 Metals (ICP) by Method 6010B 51 Volatile Organic Compounds (GC/MS) by Method 8260B 52 Semi Volatile Organic Compounds (GC/MS) by Method 8270C 65 Semi Volatile Organic Compounds (GC/MS) by Method 8270E 75 Gl: Glossary of Terms 78 Al: Accreditations & Locations 79 Sc: Sample Chain of Custody 80 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 2 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 2 of 82 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-1 L1653392-01 GW Michael Ozier 09/06/23 09:16 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129689 1 09/10/23 18:14 09/11/23 10:54 NDL Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:33 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129193 1 09/09/23 05:36 09/09/23 05:36 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2128627 1 09/11/23 06:38 09/12/23 04:33 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2129847 1 09/11/23 20:52 09/12/23 04:16 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time GMW-5 L1653392-02 GW Michael Ozier 09/06/23 10:15 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:20 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:36 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129193 1 09/09/23 05:58 09/09/23 05:58 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2128627 1 09/11/23 06:38 09/12/23 04:54 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2129847 1 09/11/23 20:52 09/12/23 04:54 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time DUP GMW-5 L1653392-03 GW Michael Ozier 09/06/23 00:00 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:22 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:39 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129193 1 09/09/23 06:20 09/09/23 06:20 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2128627 1 09/11/23 06:38 09/12/23 05:15 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130432 1 09/13/23 16:19 09/14/23 02:15 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time GMW-4 L1653392-04 GW Michael Ozier 09/06/23 12:02 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:24 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:41 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129193 1 09/09/23 06:41 09/09/23 06:41 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2128627 1 09/11/23 06:38 09/12/23 05:37 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130432 1 09/13/23 16:19 09/14/23 02:35 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time MW-5 L1653392-05 GW Michael Ozier 09/06/23 13:14 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:26 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:44 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129193 1 09/09/23 07:03 09/09/23 07:03 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2128627 1 09/11/23 06:38 09/12/23 05:58 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1 09/13/23 16:20 09/14/23 12:37 AGW Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 3 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 3 of 82 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-7 L1653392-06 GW Michael Ozier 09/06/23 15:12 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:32 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:06 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129193 1 09/09/23 07:24 09/09/23 07:24 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2128627 1 09/11/23 06:38 09/12/23 06:20 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1 09/13/23 16:20 09/14/23 09:37 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time MW-12D L1653392-07 GW Michael Ozier 09/06/23 09:30 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:39 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:47 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129193 1 09/09/23 07:46 09/09/23 07:46 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2128627 1.05 09/11/23 06:38 09/12/23 06:41 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1.05 09/13/23 16:20 09/14/23 15:30 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time MW-12S L1653392-08 GW Michael Ozier 09/06/23 10:20 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:41 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:50 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129193 1 09/09/23 08:07 09/09/23 08:07 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2128627 1 09/11/23 06:38 09/12/23 07:02 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1.02 09/13/23 16:20 09/14/23 15:49 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time MW-17 L1653392-09 GW Michael Ozier 09/06/23 11:15 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:44 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:53 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129196 1 09/09/23 10:39 09/09/23 10:39 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2129511 1 09/13/23 08:45 09/14/23 00:35 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1 09/13/23 16:20 09/14/23 12:56 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time MW-18 L1653392-10 GW Michael Ozier 09/06/23 12:10 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:46 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:56 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129196 1 09/09/23 10:59 09/09/23 10:59 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2129511 1 09/13/23 08:45 09/13/23 18:32 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1 09/13/23 16:20 09/14/23 13:16 AGW Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 4 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 4 of 82 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-13D L1653392-11 GW Michael Ozier 09/06/23 14:35 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:48 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:58 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129196 1 09/09/23 11:20 09/09/23 11:20 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2129511 1 09/13/23 08:45 09/14/23 00:57 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1.04 09/13/23 16:20 09/14/23 13:35 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time MW-13S L1653392-12 GW Michael Ozier 09/06/23 15:35 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:51 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 21:07 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129196 1 09/09/23 11:40 09/09/23 11:40 JCP Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2131061 500 09/13/23 06:39 09/13/23 06:39 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2129511 1 09/13/23 08:45 09/14/23 01:39 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1.09 09/13/23 16:20 09/14/23 16:09 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time MW-8 L1653392-13 GW Michael Ozier 09/06/23 11:12 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:53 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 21:10 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129196 1 09/09/23 12:01 09/09/23 12:01 JCP Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2131061 1 09/13/23 02:01 09/13/23 02:01 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1 09/13/23 16:20 09/14/23 13:54 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time GMW-8 L1653392-14 GW Michael Ozier 09/06/23 14:12 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:55 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 21:13 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129196 1 09/09/23 12:21 09/09/23 12:21 JCP Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2131061 1 09/13/23 02:22 09/13/23 02:22 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1 09/13/23 16:20 09/14/23 14:13 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time MW-9 L1653392-15 GW Michael Ozier 09/06/23 13:45 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:58 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 21:15 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129196 1 09/09/23 12:42 09/09/23 12:42 JCP Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2131061 1 09/13/23 02:44 09/13/23 02:44 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1.06 09/13/23 16:20 09/14/23 15:11 AGW Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 5 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 5 of 82 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Chris Ward Project Manager 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 6 of 82 Chris Ward Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 6 of 82 SAMPLE RESULTS - 01 L1653392 MW-1 Collected date/time: 09/06/23 09:16 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/11/2023 10:54 WG2129689 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0131 0.0100 1 09/08/2023 20:33 WG2128429 Barium,Dissolved 0.300 0.00500 1 09/08/2023 20:33 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:33 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:33 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 20:33 WG2128429 Lead,Dissolved 0.00785 0.00600 1 09/08/2023 20:33 WG2128429 Manganese,Dissolved 0.0388 0.0100 1 09/08/2023 20:33 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:33 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:33 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 05:36 WG2129193 Acrolein ND 0.0500 1 09/09/2023 05:36 WG2129193 Acrylonitrile ND 0.0100 1 09/09/2023 05:36 WG2129193 Benzene ND 0.00100 1 09/09/2023 05:36 WG2129193 Bromobenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 Bromodichloromethane ND 0.00100 1 09/09/2023 05:36 WG2129193 Bromoform ND 0.00100 1 09/09/2023 05:36 WG2129193 Bromomethane ND 0.00500 1 09/09/2023 05:36 WG2129193 n-Butylbenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 sec-Butylbenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 tert-Butylbenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 Carbon tetrachloride ND 0.00100 1 09/09/2023 05:36 WG2129193 Chlorobenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 Chlorodibromomethane ND 0.00100 1 09/09/2023 05:36 WG2129193 Chloroethane ND 0.00500 1 09/09/2023 05:36 WG2129193 Chloroform ND 0.00500 1 09/09/2023 05:36 WG2129193 Chloromethane ND 0.00250 1 09/09/2023 05:36 WG2129193 2-Chlorotoluene ND 0.00100 1 09/09/2023 05:36 WG2129193 4-Chlorotoluene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 05:36 WG2129193 1,2-Dibromoethane ND 0.00100 1 09/09/2023 05:36 WG2129193 Dibromomethane ND 0.00100 1 09/09/2023 05:36 WG2129193 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 05:36 WG2129193 1,1-Dichloroethane ND 0.00100 1 09/09/2023 05:36 WG2129193 1,2-Dichloroethane ND 0.00100 1 09/09/2023 05:36 WG2129193 1,1-Dichloroethene ND 0.00100 1 09/09/2023 05:36 WG2129193 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 05:36 WG2129193 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,2-Dichloropropane ND 0.00100 1 09/09/2023 05:36 WG2129193 1,1-Dichloropropene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,3-Dichloropropane ND 0.00100 1 09/09/2023 05:36 WG2129193 cis-1,3-Dichloropropene ND J4 0.00100 1 09/09/2023 05:36 WG2129193 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 05:36 WG2129193 2,2-Dichloropropane ND 0.00100 1 09/09/2023 05:36 WG2129193 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 7 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 7 of 82 SAMPLE RESULTS - 01 L1653392 MW-1 Collected date/time: 09/06/23 09:16 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 05:36 WG2129193 Ethylbenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 05:36 WG2129193 Isopropylbenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 p-Isopropyltoluene ND 0.00100 1 09/09/2023 05:36 WG2129193 2-Butanone (MEK)ND 0.0100 1 09/09/2023 05:36 WG2129193 Methylene Chloride ND 0.00500 1 09/09/2023 05:36 WG2129193 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 05:36 WG2129193 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 05:36 WG2129193 Naphthalene ND 0.00500 1 09/09/2023 05:36 WG2129193 n-Propylbenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 Styrene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 05:36 WG2129193 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 05:36 WG2129193 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 05:36 WG2129193 Tetrachloroethene ND 0.00100 1 09/09/2023 05:36 WG2129193 Toluene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,2,3-Trichlorobenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 05:36 WG2129193 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 05:36 WG2129193 Trichloroethene ND 0.00100 1 09/09/2023 05:36 WG2129193 Trichlorofluoromethane ND 0.00500 1 09/09/2023 05:36 WG2129193 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 05:36 WG2129193 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 Vinyl chloride ND 0.00100 1 09/09/2023 05:36 WG2129193 Xylenes, Total ND 0.00300 1 09/09/2023 05:36 WG2129193 (S) Toluene-d8 114 80.0-120 09/09/2023 05:36 WG2129193 (S) 4-Bromofluorobenzene 105 77.0-126 09/09/2023 05:36 WG2129193 (S) 1,2-Dichloroethane-d4 105 70.0-130 09/09/2023 05:36 WG2129193 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/12/2023 04:33 WG2128627 Acenaphthylene ND 0.00100 1 09/12/2023 04:33 WG2128627 Anthracene ND 0.00100 1 09/12/2023 04:33 WG2128627 Benzidine ND J4 0.0100 1 09/12/2023 04:33 WG2128627 Benzo(a)anthracene ND 0.00100 1 09/12/2023 04:33 WG2128627 Benzo(b)fluoranthene ND 0.00100 1 09/12/2023 04:33 WG2128627 Benzo(k)fluoranthene ND 0.00100 1 09/12/2023 04:33 WG2128627 Benzo(g,h,i)perylene ND 0.00100 1 09/12/2023 04:33 WG2128627 Benzo(a)pyrene ND 0.00100 1 09/12/2023 04:33 WG2128627 Bis(2-chlorethoxy)methane ND 0.0100 1 09/12/2023 04:33 WG2128627 Bis(2-chloroethyl)ether ND 0.0100 1 09/12/2023 04:33 WG2128627 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/12/2023 04:33 WG2128627 4-Bromophenyl-phenylether ND 0.0100 1 09/12/2023 04:33 WG2128627 2-Chloronaphthalene ND 0.00100 1 09/12/2023 04:33 WG2128627 4-Chlorophenyl-phenylether ND 0.0100 1 09/12/2023 04:33 WG2128627 Chrysene ND 0.00100 1 09/12/2023 04:33 WG2128627 Dibenz(a,h)anthracene ND 0.00100 1 09/12/2023 04:33 WG2128627 1,2-Dichlorobenzene ND 0.0100 1 09/12/2023 04:33 WG2128627 1,3-Dichlorobenzene ND 0.0100 1 09/12/2023 04:33 WG2128627 1,4-Dichlorobenzene ND 0.0100 1 09/12/2023 04:33 WG2128627 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 8 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 8 of 82 SAMPLE RESULTS - 01 L1653392 MW-1 Collected date/time: 09/06/23 09:16 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/12/2023 04:33 WG2128627 2,4-Dinitrotoluene ND 0.0100 1 09/12/2023 04:33 WG2128627 2,6-Dinitrotoluene ND 0.0100 1 09/12/2023 04:33 WG2128627 Fluoranthene ND 0.00100 1 09/12/2023 04:33 WG2128627 Fluorene ND 0.00100 1 09/12/2023 04:33 WG2128627 Hexachlorobenzene ND 0.00100 1 09/12/2023 04:33 WG2128627 Hexachloro-1,3-butadiene ND 0.0100 1 09/12/2023 04:33 WG2128627 Hexachlorocyclopentadiene ND 0.0100 1 09/12/2023 04:33 WG2128627 Hexachloroethane ND 0.0100 1 09/12/2023 04:33 WG2128627 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/12/2023 04:33 WG2128627 Isophorone ND 0.0100 1 09/12/2023 04:33 WG2128627 Naphthalene ND 0.00100 1 09/12/2023 04:33 WG2128627 Nitrobenzene ND 0.0100 1 09/12/2023 04:33 WG2128627 n-Nitrosodimethylamine ND 0.0100 1 09/12/2023 04:33 WG2128627 n-Nitrosodiphenylamine ND 0.0100 1 09/12/2023 04:33 WG2128627 n-Nitrosodi-n-propylamine ND 0.0100 1 09/12/2023 04:33 WG2128627 Phenanthrene ND 0.00100 1 09/12/2023 04:33 WG2128627 Benzylbutyl phthalate ND 0.00300 1 09/12/2023 04:33 WG2128627 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/12/2023 04:33 WG2128627 Di-n-butyl phthalate ND 0.00300 1 09/12/2023 04:33 WG2128627 Diethyl phthalate ND 0.00300 1 09/12/2023 04:33 WG2128627 Dimethyl phthalate ND 0.00300 1 09/12/2023 04:33 WG2128627 Di-n-octyl phthalate ND 0.00300 1 09/12/2023 04:33 WG2128627 Pyrene ND 0.00100 1 09/12/2023 04:33 WG2128627 1,2,4-Trichlorobenzene ND 0.0100 1 09/12/2023 04:33 WG2128627 4-Chloro-3-methylphenol ND 0.0100 1 09/12/2023 04:33 WG2128627 2-Chlorophenol ND 0.0100 1 09/12/2023 04:33 WG2128627 2,4-Dichlorophenol ND 0.0100 1 09/12/2023 04:33 WG2128627 2,4-Dimethylphenol ND 0.0100 1 09/12/2023 04:33 WG2128627 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/12/2023 04:33 WG2128627 2,4-Dinitrophenol ND 0.0100 1 09/12/2023 04:33 WG2128627 2-Nitrophenol ND 0.0100 1 09/12/2023 04:33 WG2128627 4-Nitrophenol ND 0.0100 1 09/12/2023 04:33 WG2128627 Pentachlorophenol ND 0.0100 1 09/12/2023 04:33 WG2128627 Phenol ND 0.0100 1 09/12/2023 04:33 WG2128627 2,4,6-Trichlorophenol ND 0.0100 1 09/12/2023 04:33 WG2128627 (S) 2-Fluorophenol 21.6 10.0-120 09/12/2023 04:33 WG2128627 (S) Phenol-d5 15.6 10.0-120 09/12/2023 04:33 WG2128627 (S) Nitrobenzene-d5 50.2 10.0-127 09/12/2023 04:33 WG2128627 (S) 2-Fluorobiphenyl 46.2 10.0-130 09/12/2023 04:33 WG2128627 (S) 2,4,6-Tribromophenol 33.0 10.0-155 09/12/2023 04:33 WG2128627 (S) p-Terphenyl-d14 42.7 10.0-128 09/12/2023 04:33 WG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.000633 J3 J4 0.000400 1 09/12/2023 04:16 WG2129847 (S) Nitrobenzene-d5 31.4 10.0-120 09/12/2023 04:16 WG2129847 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 9 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 9 of 82 SAMPLE RESULTS - 02 L1653392 GMW-5 Collected date/time: 09/06/23 10:15 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:20 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0371 0.0100 1 09/08/2023 20:36 WG2128429 Barium,Dissolved 0.276 0.00500 1 09/08/2023 20:36 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:36 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:36 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 20:36 WG2128429 Lead,Dissolved ND 0.00600 1 09/08/2023 20:36 WG2128429 Manganese,Dissolved 0.533 0.0100 1 09/08/2023 20:36 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:36 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:36 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 05:58 WG2129193 Acrolein ND 0.0500 1 09/09/2023 05:58 WG2129193 Acrylonitrile ND 0.0100 1 09/09/2023 05:58 WG2129193 Benzene ND 0.00100 1 09/09/2023 05:58 WG2129193 Bromobenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 Bromodichloromethane ND 0.00100 1 09/09/2023 05:58 WG2129193 Bromoform ND 0.00100 1 09/09/2023 05:58 WG2129193 Bromomethane ND 0.00500 1 09/09/2023 05:58 WG2129193 n-Butylbenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 sec-Butylbenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 tert-Butylbenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 Carbon tetrachloride ND 0.00100 1 09/09/2023 05:58 WG2129193 Chlorobenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 Chlorodibromomethane ND 0.00100 1 09/09/2023 05:58 WG2129193 Chloroethane ND 0.00500 1 09/09/2023 05:58 WG2129193 Chloroform ND 0.00500 1 09/09/2023 05:58 WG2129193 Chloromethane ND 0.00250 1 09/09/2023 05:58 WG2129193 2-Chlorotoluene ND 0.00100 1 09/09/2023 05:58 WG2129193 4-Chlorotoluene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 05:58 WG2129193 1,2-Dibromoethane ND 0.00100 1 09/09/2023 05:58 WG2129193 Dibromomethane ND 0.00100 1 09/09/2023 05:58 WG2129193 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 05:58 WG2129193 1,1-Dichloroethane ND 0.00100 1 09/09/2023 05:58 WG2129193 1,2-Dichloroethane ND 0.00100 1 09/09/2023 05:58 WG2129193 1,1-Dichloroethene ND 0.00100 1 09/09/2023 05:58 WG2129193 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 05:58 WG2129193 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,2-Dichloropropane ND 0.00100 1 09/09/2023 05:58 WG2129193 1,1-Dichloropropene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,3-Dichloropropane ND 0.00100 1 09/09/2023 05:58 WG2129193 cis-1,3-Dichloropropene ND J4 0.00100 1 09/09/2023 05:58 WG2129193 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 05:58 WG2129193 2,2-Dichloropropane ND 0.00100 1 09/09/2023 05:58 WG2129193 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 10 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 10 of 82 SAMPLE RESULTS - 02 L1653392 GMW-5 Collected date/time: 09/06/23 10:15 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 05:58 WG2129193 Ethylbenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 05:58 WG2129193 Isopropylbenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 p-Isopropyltoluene ND 0.00100 1 09/09/2023 05:58 WG2129193 2-Butanone (MEK)ND 0.0100 1 09/09/2023 05:58 WG2129193 Methylene Chloride ND 0.00500 1 09/09/2023 05:58 WG2129193 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 05:58 WG2129193 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 05:58 WG2129193 Naphthalene ND 0.00500 1 09/09/2023 05:58 WG2129193 n-Propylbenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 Styrene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 05:58 WG2129193 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 05:58 WG2129193 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 05:58 WG2129193 Tetrachloroethene ND 0.00100 1 09/09/2023 05:58 WG2129193 Toluene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,2,3-Trichlorobenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 05:58 WG2129193 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 05:58 WG2129193 Trichloroethene ND 0.00100 1 09/09/2023 05:58 WG2129193 Trichlorofluoromethane ND 0.00500 1 09/09/2023 05:58 WG2129193 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 05:58 WG2129193 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 Vinyl chloride ND 0.00100 1 09/09/2023 05:58 WG2129193 Xylenes, Total ND 0.00300 1 09/09/2023 05:58 WG2129193 (S) Toluene-d8 116 80.0-120 09/09/2023 05:58 WG2129193 (S) 4-Bromofluorobenzene 99.4 77.0-126 09/09/2023 05:58 WG2129193 (S) 1,2-Dichloroethane-d4 107 70.0-130 09/09/2023 05:58 WG2129193 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/12/2023 04:54 WG2128627 Acenaphthylene ND 0.00100 1 09/12/2023 04:54 WG2128627 Anthracene ND 0.00100 1 09/12/2023 04:54 WG2128627 Benzidine ND J4 0.0100 1 09/12/2023 04:54 WG2128627 Benzo(a)anthracene ND 0.00100 1 09/12/2023 04:54 WG2128627 Benzo(b)fluoranthene ND 0.00100 1 09/12/2023 04:54 WG2128627 Benzo(k)fluoranthene ND 0.00100 1 09/12/2023 04:54 WG2128627 Benzo(g,h,i)perylene ND 0.00100 1 09/12/2023 04:54 WG2128627 Benzo(a)pyrene ND 0.00100 1 09/12/2023 04:54 WG2128627 Bis(2-chlorethoxy)methane ND 0.0100 1 09/12/2023 04:54 WG2128627 Bis(2-chloroethyl)ether ND 0.0100 1 09/12/2023 04:54 WG2128627 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/12/2023 04:54 WG2128627 4-Bromophenyl-phenylether ND 0.0100 1 09/12/2023 04:54 WG2128627 2-Chloronaphthalene ND 0.00100 1 09/12/2023 04:54 WG2128627 4-Chlorophenyl-phenylether ND 0.0100 1 09/12/2023 04:54 WG2128627 Chrysene ND 0.00100 1 09/12/2023 04:54 WG2128627 Dibenz(a,h)anthracene ND 0.00100 1 09/12/2023 04:54 WG2128627 1,2-Dichlorobenzene ND 0.0100 1 09/12/2023 04:54 WG2128627 1,3-Dichlorobenzene ND 0.0100 1 09/12/2023 04:54 WG2128627 1,4-Dichlorobenzene ND 0.0100 1 09/12/2023 04:54 WG2128627 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 11 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 11 of 82 SAMPLE RESULTS - 02 L1653392 GMW-5 Collected date/time: 09/06/23 10:15 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/12/2023 04:54 WG2128627 2,4-Dinitrotoluene ND 0.0100 1 09/12/2023 04:54 WG2128627 2,6-Dinitrotoluene ND 0.0100 1 09/12/2023 04:54 WG2128627 Fluoranthene ND 0.00100 1 09/12/2023 04:54 WG2128627 Fluorene ND 0.00100 1 09/12/2023 04:54 WG2128627 Hexachlorobenzene ND 0.00100 1 09/12/2023 04:54 WG2128627 Hexachloro-1,3-butadiene ND 0.0100 1 09/12/2023 04:54 WG2128627 Hexachlorocyclopentadiene ND 0.0100 1 09/12/2023 04:54 WG2128627 Hexachloroethane ND 0.0100 1 09/12/2023 04:54 WG2128627 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/12/2023 04:54 WG2128627 Isophorone ND 0.0100 1 09/12/2023 04:54 WG2128627 Naphthalene ND 0.00100 1 09/12/2023 04:54 WG2128627 Nitrobenzene ND 0.0100 1 09/12/2023 04:54 WG2128627 n-Nitrosodimethylamine ND 0.0100 1 09/12/2023 04:54 WG2128627 n-Nitrosodiphenylamine ND 0.0100 1 09/12/2023 04:54 WG2128627 n-Nitrosodi-n-propylamine ND 0.0100 1 09/12/2023 04:54 WG2128627 Phenanthrene ND 0.00100 1 09/12/2023 04:54 WG2128627 Benzylbutyl phthalate ND 0.00300 1 09/12/2023 04:54 WG2128627 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/12/2023 04:54 WG2128627 Di-n-butyl phthalate ND 0.00300 1 09/12/2023 04:54 WG2128627 Diethyl phthalate ND 0.00300 1 09/12/2023 04:54 WG2128627 Dimethyl phthalate ND 0.00300 1 09/12/2023 04:54 WG2128627 Di-n-octyl phthalate ND 0.00300 1 09/12/2023 04:54 WG2128627 Pyrene ND 0.00100 1 09/12/2023 04:54 WG2128627 1,2,4-Trichlorobenzene ND 0.0100 1 09/12/2023 04:54 WG2128627 4-Chloro-3-methylphenol ND 0.0100 1 09/12/2023 04:54 WG2128627 2-Chlorophenol ND 0.0100 1 09/12/2023 04:54 WG2128627 2,4-Dichlorophenol ND 0.0100 1 09/12/2023 04:54 WG2128627 2,4-Dimethylphenol ND 0.0100 1 09/12/2023 04:54 WG2128627 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/12/2023 04:54 WG2128627 2,4-Dinitrophenol ND 0.0100 1 09/12/2023 04:54 WG2128627 2-Nitrophenol ND 0.0100 1 09/12/2023 04:54 WG2128627 4-Nitrophenol ND 0.0100 1 09/12/2023 04:54 WG2128627 Pentachlorophenol ND 0.0100 1 09/12/2023 04:54 WG2128627 Phenol ND 0.0100 1 09/12/2023 04:54 WG2128627 2,4,6-Trichlorophenol ND 0.0100 1 09/12/2023 04:54 WG2128627 (S) 2-Fluorophenol 21.2 10.0-120 09/12/2023 04:54 WG2128627 (S) Phenol-d5 14.8 10.0-120 09/12/2023 04:54 WG2128627 (S) Nitrobenzene-d5 57.0 10.0-127 09/12/2023 04:54 WG2128627 (S) 2-Fluorobiphenyl 55.4 10.0-130 09/12/2023 04:54 WG2128627 (S) 2,4,6-Tribromophenol 39.5 10.0-155 09/12/2023 04:54 WG2128627 (S) p-Terphenyl-d14 55.3 10.0-128 09/12/2023 04:54 WG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00301 J3 J4 0.000400 1 09/12/2023 04:54 WG2129847 (S) Nitrobenzene-d5 46.1 10.0-120 09/12/2023 04:54 WG2129847 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 12 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 12 of 82 SAMPLE RESULTS - 03 L1653392 DUP GMW-5 Collected date/time: 09/06/23 00:00 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:22 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0362 0.0100 1 09/08/2023 20:39 WG2128429 Barium,Dissolved 0.276 0.00500 1 09/08/2023 20:39 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:39 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:39 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 20:39 WG2128429 Lead,Dissolved ND 0.00600 1 09/08/2023 20:39 WG2128429 Manganese,Dissolved 0.535 0.0100 1 09/08/2023 20:39 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:39 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:39 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 06:20 WG2129193 Acrolein ND 0.0500 1 09/09/2023 06:20 WG2129193 Acrylonitrile ND 0.0100 1 09/09/2023 06:20 WG2129193 Benzene ND 0.00100 1 09/09/2023 06:20 WG2129193 Bromobenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 Bromodichloromethane ND 0.00100 1 09/09/2023 06:20 WG2129193 Bromoform ND 0.00100 1 09/09/2023 06:20 WG2129193 Bromomethane ND 0.00500 1 09/09/2023 06:20 WG2129193 n-Butylbenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 sec-Butylbenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 tert-Butylbenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 Carbon tetrachloride ND 0.00100 1 09/09/2023 06:20 WG2129193 Chlorobenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 Chlorodibromomethane ND 0.00100 1 09/09/2023 06:20 WG2129193 Chloroethane ND 0.00500 1 09/09/2023 06:20 WG2129193 Chloroform ND 0.00500 1 09/09/2023 06:20 WG2129193 Chloromethane ND 0.00250 1 09/09/2023 06:20 WG2129193 2-Chlorotoluene ND 0.00100 1 09/09/2023 06:20 WG2129193 4-Chlorotoluene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 06:20 WG2129193 1,2-Dibromoethane ND 0.00100 1 09/09/2023 06:20 WG2129193 Dibromomethane ND 0.00100 1 09/09/2023 06:20 WG2129193 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 06:20 WG2129193 1,1-Dichloroethane ND 0.00100 1 09/09/2023 06:20 WG2129193 1,2-Dichloroethane ND 0.00100 1 09/09/2023 06:20 WG2129193 1,1-Dichloroethene ND 0.00100 1 09/09/2023 06:20 WG2129193 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 06:20 WG2129193 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,2-Dichloropropane ND 0.00100 1 09/09/2023 06:20 WG2129193 1,1-Dichloropropene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,3-Dichloropropane ND 0.00100 1 09/09/2023 06:20 WG2129193 cis-1,3-Dichloropropene ND J4 0.00100 1 09/09/2023 06:20 WG2129193 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 06:20 WG2129193 2,2-Dichloropropane ND 0.00100 1 09/09/2023 06:20 WG2129193 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 13 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 13 of 82 SAMPLE RESULTS - 03 L1653392 DUP GMW-5 Collected date/time: 09/06/23 00:00 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 06:20 WG2129193 Ethylbenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 06:20 WG2129193 Isopropylbenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 p-Isopropyltoluene ND 0.00100 1 09/09/2023 06:20 WG2129193 2-Butanone (MEK)ND 0.0100 1 09/09/2023 06:20 WG2129193 Methylene Chloride ND 0.00500 1 09/09/2023 06:20 WG2129193 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 06:20 WG2129193 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 06:20 WG2129193 Naphthalene ND 0.00500 1 09/09/2023 06:20 WG2129193 n-Propylbenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 Styrene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 06:20 WG2129193 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 06:20 WG2129193 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 06:20 WG2129193 Tetrachloroethene ND 0.00100 1 09/09/2023 06:20 WG2129193 Toluene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,2,3-Trichlorobenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 06:20 WG2129193 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 06:20 WG2129193 Trichloroethene ND 0.00100 1 09/09/2023 06:20 WG2129193 Trichlorofluoromethane ND 0.00500 1 09/09/2023 06:20 WG2129193 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 06:20 WG2129193 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 Vinyl chloride ND 0.00100 1 09/09/2023 06:20 WG2129193 Xylenes, Total ND 0.00300 1 09/09/2023 06:20 WG2129193 (S) Toluene-d8 118 80.0-120 09/09/2023 06:20 WG2129193 (S) 4-Bromofluorobenzene 98.8 77.0-126 09/09/2023 06:20 WG2129193 (S) 1,2-Dichloroethane-d4 109 70.0-130 09/09/2023 06:20 WG2129193 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/12/2023 05:15 WG2128627 Acenaphthylene ND 0.00100 1 09/12/2023 05:15 WG2128627 Anthracene ND 0.00100 1 09/12/2023 05:15 WG2128627 Benzidine ND J4 0.0100 1 09/12/2023 05:15 WG2128627 Benzo(a)anthracene ND 0.00100 1 09/12/2023 05:15 WG2128627 Benzo(b)fluoranthene ND 0.00100 1 09/12/2023 05:15 WG2128627 Benzo(k)fluoranthene ND 0.00100 1 09/12/2023 05:15 WG2128627 Benzo(g,h,i)perylene ND 0.00100 1 09/12/2023 05:15 WG2128627 Benzo(a)pyrene ND 0.00100 1 09/12/2023 05:15 WG2128627 Bis(2-chlorethoxy)methane ND 0.0100 1 09/12/2023 05:15 WG2128627 Bis(2-chloroethyl)ether ND 0.0100 1 09/12/2023 05:15 WG2128627 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/12/2023 05:15 WG2128627 4-Bromophenyl-phenylether ND 0.0100 1 09/12/2023 05:15 WG2128627 2-Chloronaphthalene ND 0.00100 1 09/12/2023 05:15 WG2128627 4-Chlorophenyl-phenylether ND 0.0100 1 09/12/2023 05:15 WG2128627 Chrysene ND 0.00100 1 09/12/2023 05:15 WG2128627 Dibenz(a,h)anthracene ND 0.00100 1 09/12/2023 05:15 WG2128627 1,2-Dichlorobenzene ND 0.0100 1 09/12/2023 05:15 WG2128627 1,3-Dichlorobenzene ND 0.0100 1 09/12/2023 05:15 WG2128627 1,4-Dichlorobenzene ND 0.0100 1 09/12/2023 05:15 WG2128627 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 14 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 14 of 82 SAMPLE RESULTS - 03 L1653392 DUP GMW-5 Collected date/time: 09/06/23 00:00 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/12/2023 05:15 WG2128627 2,4-Dinitrotoluene ND 0.0100 1 09/12/2023 05:15 WG2128627 2,6-Dinitrotoluene ND 0.0100 1 09/12/2023 05:15 WG2128627 Fluoranthene ND 0.00100 1 09/12/2023 05:15 WG2128627 Fluorene ND 0.00100 1 09/12/2023 05:15 WG2128627 Hexachlorobenzene ND 0.00100 1 09/12/2023 05:15 WG2128627 Hexachloro-1,3-butadiene ND 0.0100 1 09/12/2023 05:15 WG2128627 Hexachlorocyclopentadiene ND 0.0100 1 09/12/2023 05:15 WG2128627 Hexachloroethane ND 0.0100 1 09/12/2023 05:15 WG2128627 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/12/2023 05:15 WG2128627 Isophorone ND 0.0100 1 09/12/2023 05:15 WG2128627 Naphthalene ND 0.00100 1 09/12/2023 05:15 WG2128627 Nitrobenzene ND 0.0100 1 09/12/2023 05:15 WG2128627 n-Nitrosodimethylamine ND 0.0100 1 09/12/2023 05:15 WG2128627 n-Nitrosodiphenylamine ND 0.0100 1 09/12/2023 05:15 WG2128627 n-Nitrosodi-n-propylamine ND 0.0100 1 09/12/2023 05:15 WG2128627 Phenanthrene ND 0.00100 1 09/12/2023 05:15 WG2128627 Benzylbutyl phthalate ND 0.00300 1 09/12/2023 05:15 WG2128627 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/12/2023 05:15 WG2128627 Di-n-butyl phthalate ND 0.00300 1 09/12/2023 05:15 WG2128627 Diethyl phthalate ND 0.00300 1 09/12/2023 05:15 WG2128627 Dimethyl phthalate ND 0.00300 1 09/12/2023 05:15 WG2128627 Di-n-octyl phthalate ND 0.00300 1 09/12/2023 05:15 WG2128627 Pyrene ND 0.00100 1 09/12/2023 05:15 WG2128627 1,2,4-Trichlorobenzene ND 0.0100 1 09/12/2023 05:15 WG2128627 4-Chloro-3-methylphenol ND 0.0100 1 09/12/2023 05:15 WG2128627 2-Chlorophenol ND 0.0100 1 09/12/2023 05:15 WG2128627 2,4-Dichlorophenol ND 0.0100 1 09/12/2023 05:15 WG2128627 2,4-Dimethylphenol ND 0.0100 1 09/12/2023 05:15 WG2128627 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/12/2023 05:15 WG2128627 2,4-Dinitrophenol ND 0.0100 1 09/12/2023 05:15 WG2128627 2-Nitrophenol ND 0.0100 1 09/12/2023 05:15 WG2128627 4-Nitrophenol ND 0.0100 1 09/12/2023 05:15 WG2128627 Pentachlorophenol ND 0.0100 1 09/12/2023 05:15 WG2128627 Phenol ND 0.0100 1 09/12/2023 05:15 WG2128627 2,4,6-Trichlorophenol ND 0.0100 1 09/12/2023 05:15 WG2128627 (S) 2-Fluorophenol 20.6 10.0-120 09/12/2023 05:15 WG2128627 (S) Phenol-d5 15.0 10.0-120 09/12/2023 05:15 WG2128627 (S) Nitrobenzene-d5 55.9 10.0-127 09/12/2023 05:15 WG2128627 (S) 2-Fluorobiphenyl 50.0 10.0-130 09/12/2023 05:15 WG2128627 (S) 2,4,6-Tribromophenol 27.4 10.0-155 09/12/2023 05:15 WG2128627 (S) p-Terphenyl-d14 47.6 10.0-128 09/12/2023 05:15 WG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00695 B 0.000400 1 09/14/2023 02:15 WG2130432 (S) Nitrobenzene-d5 43.6 10.0-120 09/14/2023 02:15 WG2130432 Sample Narrative: L1653392-03 WG2130432: Duplicate Analysis performed due to QC failure. Results confirm, reporting most compliant data. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 15 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 15 of 82 SAMPLE RESULTS - 04 L1653392 GMW-4 Collected date/time: 09/06/23 12:02 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:24 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 09/08/2023 20:41 WG2128429 Barium,Dissolved 0.133 0.00500 1 09/08/2023 20:41 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:41 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:41 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 20:41 WG2128429 Lead,Dissolved 0.00605 0.00600 1 09/08/2023 20:41 WG2128429 Manganese,Dissolved 0.0243 0.0100 1 09/08/2023 20:41 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:41 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:41 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 06:41 WG2129193 Acrolein ND 0.0500 1 09/09/2023 06:41 WG2129193 Acrylonitrile ND 0.0100 1 09/09/2023 06:41 WG2129193 Benzene ND 0.00100 1 09/09/2023 06:41 WG2129193 Bromobenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 Bromodichloromethane ND 0.00100 1 09/09/2023 06:41 WG2129193 Bromoform ND 0.00100 1 09/09/2023 06:41 WG2129193 Bromomethane ND 0.00500 1 09/09/2023 06:41 WG2129193 n-Butylbenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 sec-Butylbenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 tert-Butylbenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 Carbon tetrachloride ND 0.00100 1 09/09/2023 06:41 WG2129193 Chlorobenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 Chlorodibromomethane ND 0.00100 1 09/09/2023 06:41 WG2129193 Chloroethane ND 0.00500 1 09/09/2023 06:41 WG2129193 Chloroform ND 0.00500 1 09/09/2023 06:41 WG2129193 Chloromethane ND 0.00250 1 09/09/2023 06:41 WG2129193 2-Chlorotoluene ND 0.00100 1 09/09/2023 06:41 WG2129193 4-Chlorotoluene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 06:41 WG2129193 1,2-Dibromoethane ND 0.00100 1 09/09/2023 06:41 WG2129193 Dibromomethane ND 0.00100 1 09/09/2023 06:41 WG2129193 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 06:41 WG2129193 1,1-Dichloroethane 0.00484 0.00100 1 09/09/2023 06:41 WG2129193 1,2-Dichloroethane ND 0.00100 1 09/09/2023 06:41 WG2129193 1,1-Dichloroethene 0.130 0.00100 1 09/09/2023 06:41 WG2129193 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 06:41 WG2129193 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,2-Dichloropropane ND 0.00100 1 09/09/2023 06:41 WG2129193 1,1-Dichloropropene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,3-Dichloropropane ND 0.00100 1 09/09/2023 06:41 WG2129193 cis-1,3-Dichloropropene ND J4 0.00100 1 09/09/2023 06:41 WG2129193 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 06:41 WG2129193 2,2-Dichloropropane ND 0.00100 1 09/09/2023 06:41 WG2129193 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 16 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 16 of 82 SAMPLE RESULTS - 04 L1653392 GMW-4 Collected date/time: 09/06/23 12:02 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 06:41 WG2129193 Ethylbenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 06:41 WG2129193 Isopropylbenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 p-Isopropyltoluene ND 0.00100 1 09/09/2023 06:41 WG2129193 2-Butanone (MEK)ND 0.0100 1 09/09/2023 06:41 WG2129193 Methylene Chloride ND 0.00500 1 09/09/2023 06:41 WG2129193 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 06:41 WG2129193 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 06:41 WG2129193 Naphthalene ND 0.00500 1 09/09/2023 06:41 WG2129193 n-Propylbenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 Styrene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 06:41 WG2129193 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 06:41 WG2129193 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 06:41 WG2129193 Tetrachloroethene ND 0.00100 1 09/09/2023 06:41 WG2129193 Toluene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,2,3-Trichlorobenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,1,1-Trichloroethane 0.0233 0.00100 1 09/09/2023 06:41 WG2129193 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 06:41 WG2129193 Trichloroethene ND 0.00100 1 09/09/2023 06:41 WG2129193 Trichlorofluoromethane ND 0.00500 1 09/09/2023 06:41 WG2129193 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 06:41 WG2129193 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 Vinyl chloride ND 0.00100 1 09/09/2023 06:41 WG2129193 Xylenes, Total ND 0.00300 1 09/09/2023 06:41 WG2129193 (S) Toluene-d8 112 80.0-120 09/09/2023 06:41 WG2129193 (S) 4-Bromofluorobenzene 101 77.0-126 09/09/2023 06:41 WG2129193 (S) 1,2-Dichloroethane-d4 108 70.0-130 09/09/2023 06:41 WG2129193 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/12/2023 05:37 WG2128627 Acenaphthylene ND 0.00100 1 09/12/2023 05:37 WG2128627 Anthracene ND 0.00100 1 09/12/2023 05:37 WG2128627 Benzidine ND J4 0.0100 1 09/12/2023 05:37 WG2128627 Benzo(a)anthracene ND 0.00100 1 09/12/2023 05:37 WG2128627 Benzo(b)fluoranthene ND 0.00100 1 09/12/2023 05:37 WG2128627 Benzo(k)fluoranthene ND 0.00100 1 09/12/2023 05:37 WG2128627 Benzo(g,h,i)perylene ND 0.00100 1 09/12/2023 05:37 WG2128627 Benzo(a)pyrene ND 0.00100 1 09/12/2023 05:37 WG2128627 Bis(2-chlorethoxy)methane ND 0.0100 1 09/12/2023 05:37 WG2128627 Bis(2-chloroethyl)ether ND 0.0100 1 09/12/2023 05:37 WG2128627 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/12/2023 05:37 WG2128627 4-Bromophenyl-phenylether ND 0.0100 1 09/12/2023 05:37 WG2128627 2-Chloronaphthalene ND 0.00100 1 09/12/2023 05:37 WG2128627 4-Chlorophenyl-phenylether ND 0.0100 1 09/12/2023 05:37 WG2128627 Chrysene ND 0.00100 1 09/12/2023 05:37 WG2128627 Dibenz(a,h)anthracene ND 0.00100 1 09/12/2023 05:37 WG2128627 1,2-Dichlorobenzene ND 0.0100 1 09/12/2023 05:37 WG2128627 1,3-Dichlorobenzene ND 0.0100 1 09/12/2023 05:37 WG2128627 1,4-Dichlorobenzene ND 0.0100 1 09/12/2023 05:37 WG2128627 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 17 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 17 of 82 SAMPLE RESULTS - 04 L1653392 GMW-4 Collected date/time: 09/06/23 12:02 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/12/2023 05:37 WG2128627 2,4-Dinitrotoluene ND 0.0100 1 09/12/2023 05:37 WG2128627 2,6-Dinitrotoluene ND 0.0100 1 09/12/2023 05:37 WG2128627 Fluoranthene ND 0.00100 1 09/12/2023 05:37 WG2128627 Fluorene ND 0.00100 1 09/12/2023 05:37 WG2128627 Hexachlorobenzene ND 0.00100 1 09/12/2023 05:37 WG2128627 Hexachloro-1,3-butadiene ND 0.0100 1 09/12/2023 05:37 WG2128627 Hexachlorocyclopentadiene ND 0.0100 1 09/12/2023 05:37 WG2128627 Hexachloroethane ND 0.0100 1 09/12/2023 05:37 WG2128627 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/12/2023 05:37 WG2128627 Isophorone ND 0.0100 1 09/12/2023 05:37 WG2128627 Naphthalene ND 0.00100 1 09/12/2023 05:37 WG2128627 Nitrobenzene ND 0.0100 1 09/12/2023 05:37 WG2128627 n-Nitrosodimethylamine ND 0.0100 1 09/12/2023 05:37 WG2128627 n-Nitrosodiphenylamine ND 0.0100 1 09/12/2023 05:37 WG2128627 n-Nitrosodi-n-propylamine ND 0.0100 1 09/12/2023 05:37 WG2128627 Phenanthrene ND 0.00100 1 09/12/2023 05:37 WG2128627 Benzylbutyl phthalate ND 0.00300 1 09/12/2023 05:37 WG2128627 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/12/2023 05:37 WG2128627 Di-n-butyl phthalate ND 0.00300 1 09/12/2023 05:37 WG2128627 Diethyl phthalate ND 0.00300 1 09/12/2023 05:37 WG2128627 Dimethyl phthalate ND 0.00300 1 09/12/2023 05:37 WG2128627 Di-n-octyl phthalate ND 0.00300 1 09/12/2023 05:37 WG2128627 Pyrene ND 0.00100 1 09/12/2023 05:37 WG2128627 1,2,4-Trichlorobenzene ND 0.0100 1 09/12/2023 05:37 WG2128627 4-Chloro-3-methylphenol ND 0.0100 1 09/12/2023 05:37 WG2128627 2-Chlorophenol ND 0.0100 1 09/12/2023 05:37 WG2128627 2,4-Dichlorophenol ND 0.0100 1 09/12/2023 05:37 WG2128627 2,4-Dimethylphenol ND 0.0100 1 09/12/2023 05:37 WG2128627 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/12/2023 05:37 WG2128627 2,4-Dinitrophenol ND 0.0100 1 09/12/2023 05:37 WG2128627 2-Nitrophenol ND 0.0100 1 09/12/2023 05:37 WG2128627 4-Nitrophenol ND 0.0100 1 09/12/2023 05:37 WG2128627 Pentachlorophenol ND 0.0100 1 09/12/2023 05:37 WG2128627 Phenol ND 0.0100 1 09/12/2023 05:37 WG2128627 2,4,6-Trichlorophenol ND 0.0100 1 09/12/2023 05:37 WG2128627 (S) 2-Fluorophenol 20.5 10.0-120 09/12/2023 05:37 WG2128627 (S) Phenol-d5 15.2 10.0-120 09/12/2023 05:37 WG2128627 (S) Nitrobenzene-d5 57.0 10.0-127 09/12/2023 05:37 WG2128627 (S) 2-Fluorobiphenyl 52.3 10.0-130 09/12/2023 05:37 WG2128627 (S) 2,4,6-Tribromophenol 24.9 10.0-155 09/12/2023 05:37 WG2128627 (S) p-Terphenyl-d14 44.9 10.0-128 09/12/2023 05:37 WG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.0763 0.000400 1 09/14/2023 02:35 WG2130432 (S) Nitrobenzene-d5 43.4 10.0-120 09/14/2023 02:35 WG2130432 Sample Narrative: L1653392-04 WG2130432: Duplicate Analysis performed due to QC failure. Results confirm, reporting most compliant data. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 18 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 18 of 82 SAMPLE RESULTS - 05 L1653392 MW-5 Collected date/time: 09/06/23 13:14 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:26 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.233 0.0100 1 09/08/2023 20:44 WG2128429 Barium,Dissolved 0.646 0.00500 1 09/08/2023 20:44 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:44 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:44 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 20:44 WG2128429 Lead,Dissolved 0.00716 0.00600 1 09/08/2023 20:44 WG2128429 Manganese,Dissolved 0.0724 0.0100 1 09/08/2023 20:44 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:44 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:44 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 07:03 WG2129193 Acrolein ND 0.0500 1 09/09/2023 07:03 WG2129193 Acrylonitrile ND 0.0100 1 09/09/2023 07:03 WG2129193 Benzene ND 0.00100 1 09/09/2023 07:03 WG2129193 Bromobenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 Bromodichloromethane ND 0.00100 1 09/09/2023 07:03 WG2129193 Bromoform ND 0.00100 1 09/09/2023 07:03 WG2129193 Bromomethane ND 0.00500 1 09/09/2023 07:03 WG2129193 n-Butylbenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 sec-Butylbenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 tert-Butylbenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 Carbon tetrachloride ND 0.00100 1 09/09/2023 07:03 WG2129193 Chlorobenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 Chlorodibromomethane ND 0.00100 1 09/09/2023 07:03 WG2129193 Chloroethane ND 0.00500 1 09/09/2023 07:03 WG2129193 Chloroform ND 0.00500 1 09/09/2023 07:03 WG2129193 Chloromethane ND 0.00250 1 09/09/2023 07:03 WG2129193 2-Chlorotoluene ND 0.00100 1 09/09/2023 07:03 WG2129193 4-Chlorotoluene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 07:03 WG2129193 1,2-Dibromoethane ND 0.00100 1 09/09/2023 07:03 WG2129193 Dibromomethane ND 0.00100 1 09/09/2023 07:03 WG2129193 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 07:03 WG2129193 1,1-Dichloroethane ND 0.00100 1 09/09/2023 07:03 WG2129193 1,2-Dichloroethane ND 0.00100 1 09/09/2023 07:03 WG2129193 1,1-Dichloroethene ND 0.00100 1 09/09/2023 07:03 WG2129193 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 07:03 WG2129193 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,2-Dichloropropane ND 0.00100 1 09/09/2023 07:03 WG2129193 1,1-Dichloropropene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,3-Dichloropropane ND 0.00100 1 09/09/2023 07:03 WG2129193 cis-1,3-Dichloropropene ND J4 0.00100 1 09/09/2023 07:03 WG2129193 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 07:03 WG2129193 2,2-Dichloropropane ND 0.00100 1 09/09/2023 07:03 WG2129193 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 19 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 19 of 82 SAMPLE RESULTS - 05 L1653392 MW-5 Collected date/time: 09/06/23 13:14 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 07:03 WG2129193 Ethylbenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 07:03 WG2129193 Isopropylbenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 p-Isopropyltoluene ND 0.00100 1 09/09/2023 07:03 WG2129193 2-Butanone (MEK)ND 0.0100 1 09/09/2023 07:03 WG2129193 Methylene Chloride ND 0.00500 1 09/09/2023 07:03 WG2129193 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 07:03 WG2129193 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 07:03 WG2129193 Naphthalene ND 0.00500 1 09/09/2023 07:03 WG2129193 n-Propylbenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 Styrene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 07:03 WG2129193 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 07:03 WG2129193 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 07:03 WG2129193 Tetrachloroethene ND 0.00100 1 09/09/2023 07:03 WG2129193 Toluene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,2,3-Trichlorobenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 07:03 WG2129193 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 07:03 WG2129193 Trichloroethene ND 0.00100 1 09/09/2023 07:03 WG2129193 Trichlorofluoromethane ND 0.00500 1 09/09/2023 07:03 WG2129193 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 07:03 WG2129193 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 Vinyl chloride ND 0.00100 1 09/09/2023 07:03 WG2129193 Xylenes, Total ND 0.00300 1 09/09/2023 07:03 WG2129193 (S) Toluene-d8 115 80.0-120 09/09/2023 07:03 WG2129193 (S) 4-Bromofluorobenzene 101 77.0-126 09/09/2023 07:03 WG2129193 (S) 1,2-Dichloroethane-d4 107 70.0-130 09/09/2023 07:03 WG2129193 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/12/2023 05:58 WG2128627 Acenaphthylene ND 0.00100 1 09/12/2023 05:58 WG2128627 Anthracene ND 0.00100 1 09/12/2023 05:58 WG2128627 Benzidine ND J4 0.0100 1 09/12/2023 05:58 WG2128627 Benzo(a)anthracene ND 0.00100 1 09/12/2023 05:58 WG2128627 Benzo(b)fluoranthene ND 0.00100 1 09/12/2023 05:58 WG2128627 Benzo(k)fluoranthene ND 0.00100 1 09/12/2023 05:58 WG2128627 Benzo(g,h,i)perylene ND 0.00100 1 09/12/2023 05:58 WG2128627 Benzo(a)pyrene ND 0.00100 1 09/12/2023 05:58 WG2128627 Bis(2-chlorethoxy)methane ND 0.0100 1 09/12/2023 05:58 WG2128627 Bis(2-chloroethyl)ether ND 0.0100 1 09/12/2023 05:58 WG2128627 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/12/2023 05:58 WG2128627 4-Bromophenyl-phenylether ND 0.0100 1 09/12/2023 05:58 WG2128627 2-Chloronaphthalene ND 0.00100 1 09/12/2023 05:58 WG2128627 4-Chlorophenyl-phenylether ND 0.0100 1 09/12/2023 05:58 WG2128627 Chrysene ND 0.00100 1 09/12/2023 05:58 WG2128627 Dibenz(a,h)anthracene ND 0.00100 1 09/12/2023 05:58 WG2128627 1,2-Dichlorobenzene ND 0.0100 1 09/12/2023 05:58 WG2128627 1,3-Dichlorobenzene ND 0.0100 1 09/12/2023 05:58 WG2128627 1,4-Dichlorobenzene ND 0.0100 1 09/12/2023 05:58 WG2128627 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 20 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 20 of 82 SAMPLE RESULTS - 05 L1653392 MW-5 Collected date/time: 09/06/23 13:14 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/12/2023 05:58 WG2128627 2,4-Dinitrotoluene ND 0.0100 1 09/12/2023 05:58 WG2128627 2,6-Dinitrotoluene ND 0.0100 1 09/12/2023 05:58 WG2128627 Fluoranthene ND 0.00100 1 09/12/2023 05:58 WG2128627 Fluorene ND 0.00100 1 09/12/2023 05:58 WG2128627 Hexachlorobenzene ND 0.00100 1 09/12/2023 05:58 WG2128627 Hexachloro-1,3-butadiene ND 0.0100 1 09/12/2023 05:58 WG2128627 Hexachlorocyclopentadiene ND 0.0100 1 09/12/2023 05:58 WG2128627 Hexachloroethane ND 0.0100 1 09/12/2023 05:58 WG2128627 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/12/2023 05:58 WG2128627 Isophorone ND 0.0100 1 09/12/2023 05:58 WG2128627 Naphthalene ND 0.00100 1 09/12/2023 05:58 WG2128627 Nitrobenzene ND 0.0100 1 09/12/2023 05:58 WG2128627 n-Nitrosodimethylamine ND 0.0100 1 09/12/2023 05:58 WG2128627 n-Nitrosodiphenylamine ND 0.0100 1 09/12/2023 05:58 WG2128627 n-Nitrosodi-n-propylamine ND 0.0100 1 09/12/2023 05:58 WG2128627 Phenanthrene ND 0.00100 1 09/12/2023 05:58 WG2128627 Benzylbutyl phthalate ND 0.00300 1 09/12/2023 05:58 WG2128627 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/12/2023 05:58 WG2128627 Di-n-butyl phthalate ND 0.00300 1 09/12/2023 05:58 WG2128627 Diethyl phthalate ND 0.00300 1 09/12/2023 05:58 WG2128627 Dimethyl phthalate ND 0.00300 1 09/12/2023 05:58 WG2128627 Di-n-octyl phthalate ND 0.00300 1 09/12/2023 05:58 WG2128627 Pyrene ND 0.00100 1 09/12/2023 05:58 WG2128627 1,2,4-Trichlorobenzene ND 0.0100 1 09/12/2023 05:58 WG2128627 4-Chloro-3-methylphenol ND 0.0100 1 09/12/2023 05:58 WG2128627 2-Chlorophenol ND 0.0100 1 09/12/2023 05:58 WG2128627 2,4-Dichlorophenol ND 0.0100 1 09/12/2023 05:58 WG2128627 2,4-Dimethylphenol ND 0.0100 1 09/12/2023 05:58 WG2128627 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/12/2023 05:58 WG2128627 2,4-Dinitrophenol ND 0.0100 1 09/12/2023 05:58 WG2128627 2-Nitrophenol ND 0.0100 1 09/12/2023 05:58 WG2128627 4-Nitrophenol ND 0.0100 1 09/12/2023 05:58 WG2128627 Pentachlorophenol ND 0.0100 1 09/12/2023 05:58 WG2128627 Phenol ND 0.0100 1 09/12/2023 05:58 WG2128627 2,4,6-Trichlorophenol ND 0.0100 1 09/12/2023 05:58 WG2128627 (S) 2-Fluorophenol 27.9 10.0-120 09/12/2023 05:58 WG2128627 (S) Phenol-d5 19.7 10.0-120 09/12/2023 05:58 WG2128627 (S) Nitrobenzene-d5 61.8 10.0-127 09/12/2023 05:58 WG2128627 (S) 2-Fluorobiphenyl 51.6 10.0-130 09/12/2023 05:58 WG2128627 (S) 2,4,6-Tribromophenol 34.6 10.0-155 09/12/2023 05:58 WG2128627 (S) p-Terphenyl-d14 46.4 10.0-128 09/12/2023 05:58 WG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00916 0.000400 1 09/14/2023 12:37 WG2130709 (S) Nitrobenzene-d5 33.3 10.0-120 09/14/2023 12:37 WG2130709 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 21 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 21 of 82 SAMPLE RESULTS - 06 L1653392 MW-7 Collected date/time: 09/06/23 15:12 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:32 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.301 0.0100 1 09/08/2023 20:06 WG2128429 Barium,Dissolved 0.0704 0.00500 1 09/08/2023 20:06 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:06 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:06 WG2128429 Iron,Dissolved 0.182 B 0.100 1 09/08/2023 20:06 WG2128429 Lead,Dissolved 0.00773 0.00600 1 09/08/2023 20:06 WG2128429 Manganese,Dissolved ND 0.0100 1 09/08/2023 20:06 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:06 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:06 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 07:24 WG2129193 Acrolein ND 0.0500 1 09/09/2023 07:24 WG2129193 Acrylonitrile ND 0.0100 1 09/09/2023 07:24 WG2129193 Benzene ND 0.00100 1 09/09/2023 07:24 WG2129193 Bromobenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 Bromodichloromethane ND 0.00100 1 09/09/2023 07:24 WG2129193 Bromoform ND 0.00100 1 09/09/2023 07:24 WG2129193 Bromomethane ND 0.00500 1 09/09/2023 07:24 WG2129193 n-Butylbenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 sec-Butylbenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 tert-Butylbenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 Carbon tetrachloride ND 0.00100 1 09/09/2023 07:24 WG2129193 Chlorobenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 Chlorodibromomethane ND 0.00100 1 09/09/2023 07:24 WG2129193 Chloroethane ND 0.00500 1 09/09/2023 07:24 WG2129193 Chloroform ND 0.00500 1 09/09/2023 07:24 WG2129193 Chloromethane ND 0.00250 1 09/09/2023 07:24 WG2129193 2-Chlorotoluene ND 0.00100 1 09/09/2023 07:24 WG2129193 4-Chlorotoluene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 07:24 WG2129193 1,2-Dibromoethane ND 0.00100 1 09/09/2023 07:24 WG2129193 Dibromomethane ND 0.00100 1 09/09/2023 07:24 WG2129193 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 07:24 WG2129193 1,1-Dichloroethane ND 0.00100 1 09/09/2023 07:24 WG2129193 1,2-Dichloroethane ND 0.00100 1 09/09/2023 07:24 WG2129193 1,1-Dichloroethene ND 0.00100 1 09/09/2023 07:24 WG2129193 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 07:24 WG2129193 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,2-Dichloropropane ND 0.00100 1 09/09/2023 07:24 WG2129193 1,1-Dichloropropene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,3-Dichloropropane ND 0.00100 1 09/09/2023 07:24 WG2129193 cis-1,3-Dichloropropene ND J4 0.00100 1 09/09/2023 07:24 WG2129193 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 07:24 WG2129193 2,2-Dichloropropane ND 0.00100 1 09/09/2023 07:24 WG2129193 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 22 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 22 of 82 SAMPLE RESULTS - 06 L1653392 MW-7 Collected date/time: 09/06/23 15:12 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 07:24 WG2129193 Ethylbenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 07:24 WG2129193 Isopropylbenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 p-Isopropyltoluene ND 0.00100 1 09/09/2023 07:24 WG2129193 2-Butanone (MEK)ND 0.0100 1 09/09/2023 07:24 WG2129193 Methylene Chloride ND 0.00500 1 09/09/2023 07:24 WG2129193 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 07:24 WG2129193 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 07:24 WG2129193 Naphthalene ND 0.00500 1 09/09/2023 07:24 WG2129193 n-Propylbenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 Styrene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 07:24 WG2129193 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 07:24 WG2129193 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 07:24 WG2129193 Tetrachloroethene ND 0.00100 1 09/09/2023 07:24 WG2129193 Toluene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,2,3-Trichlorobenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 07:24 WG2129193 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 07:24 WG2129193 Trichloroethene ND 0.00100 1 09/09/2023 07:24 WG2129193 Trichlorofluoromethane ND 0.00500 1 09/09/2023 07:24 WG2129193 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 07:24 WG2129193 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 Vinyl chloride ND 0.00100 1 09/09/2023 07:24 WG2129193 Xylenes, Total ND 0.00300 1 09/09/2023 07:24 WG2129193 (S) Toluene-d8 118 80.0-120 09/09/2023 07:24 WG2129193 (S) 4-Bromofluorobenzene 105 77.0-126 09/09/2023 07:24 WG2129193 (S) 1,2-Dichloroethane-d4 108 70.0-130 09/09/2023 07:24 WG2129193 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/12/2023 06:20 WG2128627 Acenaphthylene ND 0.00100 1 09/12/2023 06:20 WG2128627 Anthracene ND 0.00100 1 09/12/2023 06:20 WG2128627 Benzidine ND J4 0.0100 1 09/12/2023 06:20 WG2128627 Benzo(a)anthracene ND 0.00100 1 09/12/2023 06:20 WG2128627 Benzo(b)fluoranthene ND 0.00100 1 09/12/2023 06:20 WG2128627 Benzo(k)fluoranthene ND 0.00100 1 09/12/2023 06:20 WG2128627 Benzo(g,h,i)perylene ND 0.00100 1 09/12/2023 06:20 WG2128627 Benzo(a)pyrene ND 0.00100 1 09/12/2023 06:20 WG2128627 Bis(2-chlorethoxy)methane ND 0.0100 1 09/12/2023 06:20 WG2128627 Bis(2-chloroethyl)ether ND 0.0100 1 09/12/2023 06:20 WG2128627 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/12/2023 06:20 WG2128627 4-Bromophenyl-phenylether ND 0.0100 1 09/12/2023 06:20 WG2128627 2-Chloronaphthalene ND 0.00100 1 09/12/2023 06:20 WG2128627 4-Chlorophenyl-phenylether ND 0.0100 1 09/12/2023 06:20 WG2128627 Chrysene ND 0.00100 1 09/12/2023 06:20 WG2128627 Dibenz(a,h)anthracene ND 0.00100 1 09/12/2023 06:20 WG2128627 1,2-Dichlorobenzene ND 0.0100 1 09/12/2023 06:20 WG2128627 1,3-Dichlorobenzene ND 0.0100 1 09/12/2023 06:20 WG2128627 1,4-Dichlorobenzene ND 0.0100 1 09/12/2023 06:20 WG2128627 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 23 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 23 of 82 SAMPLE RESULTS - 06 L1653392 MW-7 Collected date/time: 09/06/23 15:12 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/12/2023 06:20 WG2128627 2,4-Dinitrotoluene ND 0.0100 1 09/12/2023 06:20 WG2128627 2,6-Dinitrotoluene ND 0.0100 1 09/12/2023 06:20 WG2128627 Fluoranthene ND 0.00100 1 09/12/2023 06:20 WG2128627 Fluorene ND 0.00100 1 09/12/2023 06:20 WG2128627 Hexachlorobenzene ND 0.00100 1 09/12/2023 06:20 WG2128627 Hexachloro-1,3-butadiene ND 0.0100 1 09/12/2023 06:20 WG2128627 Hexachlorocyclopentadiene ND 0.0100 1 09/12/2023 06:20 WG2128627 Hexachloroethane ND 0.0100 1 09/12/2023 06:20 WG2128627 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/12/2023 06:20 WG2128627 Isophorone ND 0.0100 1 09/12/2023 06:20 WG2128627 Naphthalene ND 0.00100 1 09/12/2023 06:20 WG2128627 Nitrobenzene ND 0.0100 1 09/12/2023 06:20 WG2128627 n-Nitrosodimethylamine ND 0.0100 1 09/12/2023 06:20 WG2128627 n-Nitrosodiphenylamine ND 0.0100 1 09/12/2023 06:20 WG2128627 n-Nitrosodi-n-propylamine ND 0.0100 1 09/12/2023 06:20 WG2128627 Phenanthrene ND 0.00100 1 09/12/2023 06:20 WG2128627 Benzylbutyl phthalate ND 0.00300 1 09/12/2023 06:20 WG2128627 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/12/2023 06:20 WG2128627 Di-n-butyl phthalate ND 0.00300 1 09/12/2023 06:20 WG2128627 Diethyl phthalate ND 0.00300 1 09/12/2023 06:20 WG2128627 Dimethyl phthalate ND 0.00300 1 09/12/2023 06:20 WG2128627 Di-n-octyl phthalate ND 0.00300 1 09/12/2023 06:20 WG2128627 Pyrene ND 0.00100 1 09/12/2023 06:20 WG2128627 1,2,4-Trichlorobenzene ND 0.0100 1 09/12/2023 06:20 WG2128627 4-Chloro-3-methylphenol ND 0.0100 1 09/12/2023 06:20 WG2128627 2-Chlorophenol ND 0.0100 1 09/12/2023 06:20 WG2128627 2,4-Dichlorophenol ND 0.0100 1 09/12/2023 06:20 WG2128627 2,4-Dimethylphenol ND 0.0100 1 09/12/2023 06:20 WG2128627 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/12/2023 06:20 WG2128627 2,4-Dinitrophenol ND 0.0100 1 09/12/2023 06:20 WG2128627 2-Nitrophenol ND 0.0100 1 09/12/2023 06:20 WG2128627 4-Nitrophenol ND 0.0100 1 09/12/2023 06:20 WG2128627 Pentachlorophenol ND 0.0100 1 09/12/2023 06:20 WG2128627 Phenol ND 0.0100 1 09/12/2023 06:20 WG2128627 2,4,6-Trichlorophenol ND 0.0100 1 09/12/2023 06:20 WG2128627 (S) 2-Fluorophenol 28.7 10.0-120 09/12/2023 06:20 WG2128627 (S) Phenol-d5 19.5 10.0-120 09/12/2023 06:20 WG2128627 (S) Nitrobenzene-d5 69.6 10.0-127 09/12/2023 06:20 WG2128627 (S) 2-Fluorobiphenyl 62.1 10.0-130 09/12/2023 06:20 WG2128627 (S) 2,4,6-Tribromophenol 36.1 10.0-155 09/12/2023 06:20 WG2128627 (S) p-Terphenyl-d14 54.7 10.0-128 09/12/2023 06:20 WG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane ND 0.000400 1 09/14/2023 09:37 WG2130709 (S) Nitrobenzene-d5 40.3 10.0-120 09/14/2023 09:37 WG2130709 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 24 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 24 of 82 SAMPLE RESULTS - 07 L1653392 MW-12D Collected date/time: 09/06/23 09:30 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:39 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.192 0.0100 1 09/08/2023 20:47 WG2128429 Barium,Dissolved 0.134 0.00500 1 09/08/2023 20:47 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:47 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:47 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 20:47 WG2128429 Lead,Dissolved 0.00772 0.00600 1 09/08/2023 20:47 WG2128429 Manganese,Dissolved 0.0390 0.0100 1 09/08/2023 20:47 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:47 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:47 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 07:46 WG2129193 Acrolein ND 0.0500 1 09/09/2023 07:46 WG2129193 Acrylonitrile ND 0.0100 1 09/09/2023 07:46 WG2129193 Benzene ND 0.00100 1 09/09/2023 07:46 WG2129193 Bromobenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 Bromodichloromethane ND 0.00100 1 09/09/2023 07:46 WG2129193 Bromoform ND 0.00100 1 09/09/2023 07:46 WG2129193 Bromomethane ND 0.00500 1 09/09/2023 07:46 WG2129193 n-Butylbenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 sec-Butylbenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 tert-Butylbenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 Carbon tetrachloride ND 0.00100 1 09/09/2023 07:46 WG2129193 Chlorobenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 Chlorodibromomethane ND 0.00100 1 09/09/2023 07:46 WG2129193 Chloroethane ND 0.00500 1 09/09/2023 07:46 WG2129193 Chloroform ND 0.00500 1 09/09/2023 07:46 WG2129193 Chloromethane ND 0.00250 1 09/09/2023 07:46 WG2129193 2-Chlorotoluene ND 0.00100 1 09/09/2023 07:46 WG2129193 4-Chlorotoluene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 07:46 WG2129193 1,2-Dibromoethane ND 0.00100 1 09/09/2023 07:46 WG2129193 Dibromomethane ND 0.00100 1 09/09/2023 07:46 WG2129193 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 07:46 WG2129193 1,1-Dichloroethane ND 0.00100 1 09/09/2023 07:46 WG2129193 1,2-Dichloroethane ND 0.00100 1 09/09/2023 07:46 WG2129193 1,1-Dichloroethene ND 0.00100 1 09/09/2023 07:46 WG2129193 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 07:46 WG2129193 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,2-Dichloropropane ND 0.00100 1 09/09/2023 07:46 WG2129193 1,1-Dichloropropene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,3-Dichloropropane ND 0.00100 1 09/09/2023 07:46 WG2129193 cis-1,3-Dichloropropene ND J4 0.00100 1 09/09/2023 07:46 WG2129193 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 07:46 WG2129193 2,2-Dichloropropane ND 0.00100 1 09/09/2023 07:46 WG2129193 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 25 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 25 of 82 SAMPLE RESULTS - 07 L1653392 MW-12D Collected date/time: 09/06/23 09:30 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 07:46 WG2129193 Ethylbenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 07:46 WG2129193 Isopropylbenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 p-Isopropyltoluene ND 0.00100 1 09/09/2023 07:46 WG2129193 2-Butanone (MEK)ND 0.0100 1 09/09/2023 07:46 WG2129193 Methylene Chloride ND 0.00500 1 09/09/2023 07:46 WG2129193 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 07:46 WG2129193 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 07:46 WG2129193 Naphthalene ND 0.00500 1 09/09/2023 07:46 WG2129193 n-Propylbenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 Styrene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 07:46 WG2129193 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 07:46 WG2129193 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 07:46 WG2129193 Tetrachloroethene ND 0.00100 1 09/09/2023 07:46 WG2129193 Toluene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,2,3-Trichlorobenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 07:46 WG2129193 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 07:46 WG2129193 Trichloroethene ND 0.00100 1 09/09/2023 07:46 WG2129193 Trichlorofluoromethane ND 0.00500 1 09/09/2023 07:46 WG2129193 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 07:46 WG2129193 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 Vinyl chloride ND 0.00100 1 09/09/2023 07:46 WG2129193 Xylenes, Total ND 0.00300 1 09/09/2023 07:46 WG2129193 (S) Toluene-d8 116 80.0-120 09/09/2023 07:46 WG2129193 (S) 4-Bromofluorobenzene 103 77.0-126 09/09/2023 07:46 WG2129193 (S) 1,2-Dichloroethane-d4 103 70.0-130 09/09/2023 07:46 WG2129193 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Acenaphthylene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Anthracene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Benzidine ND J4 0.0105 1.05 09/12/2023 06:41 WG2128627 Benzo(a)anthracene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Benzo(b)fluoranthene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Benzo(k)fluoranthene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Benzo(g,h,i)perylene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Benzo(a)pyrene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Bis(2-chlorethoxy)methane ND 0.0105 1.05 09/12/2023 06:41 WG2128627 Bis(2-chloroethyl)ether ND 0.0105 1.05 09/12/2023 06:41 WG2128627 2,2-Oxybis(1-Chloropropane)ND 0.0105 1.05 09/12/2023 06:41 WG2128627 4-Bromophenyl-phenylether ND 0.0105 1.05 09/12/2023 06:41 WG2128627 2-Chloronaphthalene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 4-Chlorophenyl-phenylether ND 0.0105 1.05 09/12/2023 06:41 WG2128627 Chrysene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Dibenz(a,h)anthracene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 1,2-Dichlorobenzene ND 0.0105 1.05 09/12/2023 06:41 WG2128627 1,3-Dichlorobenzene ND 0.0105 1.05 09/12/2023 06:41 WG2128627 1,4-Dichlorobenzene ND 0.0105 1.05 09/12/2023 06:41 WG2128627 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 26 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 26 of 82 SAMPLE RESULTS - 07 L1653392 MW-12D Collected date/time: 09/06/23 09:30 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0105 1.05 09/12/2023 06:41 WG2128627 2,4-Dinitrotoluene ND 0.0105 1.05 09/12/2023 06:41 WG2128627 2,6-Dinitrotoluene ND 0.0105 1.05 09/12/2023 06:41 WG2128627 Fluoranthene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Fluorene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Hexachlorobenzene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Hexachloro-1,3-butadiene ND 0.0105 1.05 09/12/2023 06:41 WG2128627 Hexachlorocyclopentadiene ND 0.0105 1.05 09/12/2023 06:41 WG2128627 Hexachloroethane ND 0.0105 1.05 09/12/2023 06:41 WG2128627 Indeno(1,2,3-cd)pyrene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Isophorone ND 0.0105 1.05 09/12/2023 06:41 WG2128627 Naphthalene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Nitrobenzene ND 0.0105 1.05 09/12/2023 06:41 WG2128627 n-Nitrosodimethylamine ND 0.0105 1.05 09/12/2023 06:41 WG2128627 n-Nitrosodiphenylamine ND 0.0105 1.05 09/12/2023 06:41 WG2128627 n-Nitrosodi-n-propylamine ND 0.0105 1.05 09/12/2023 06:41 WG2128627 Phenanthrene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Benzylbutyl phthalate ND 0.00315 1.05 09/12/2023 06:41 WG2128627 Bis(2-ethylhexyl)phthalate ND 0.00315 1.05 09/12/2023 06:41 WG2128627 Di-n-butyl phthalate ND 0.00315 1.05 09/12/2023 06:41 WG2128627 Diethyl phthalate ND 0.00315 1.05 09/12/2023 06:41 WG2128627 Dimethyl phthalate ND 0.00315 1.05 09/12/2023 06:41 WG2128627 Di-n-octyl phthalate ND 0.00315 1.05 09/12/2023 06:41 WG2128627 Pyrene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 1,2,4-Trichlorobenzene ND 0.0105 1.05 09/12/2023 06:41 WG2128627 4-Chloro-3-methylphenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 2-Chlorophenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 2,4-Dichlorophenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 2,4-Dimethylphenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 4,6-Dinitro-2-methylphenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 2,4-Dinitrophenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 2-Nitrophenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 4-Nitrophenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 Pentachlorophenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 Phenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 2,4,6-Trichlorophenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 (S) 2-Fluorophenol 28.6 10.0-120 09/12/2023 06:41 WG2128627 (S) Phenol-d5 17.7 10.0-120 09/12/2023 06:41 WG2128627 (S) Nitrobenzene-d5 55.8 10.0-127 09/12/2023 06:41 WG2128627 (S) 2-Fluorobiphenyl 55.6 10.0-130 09/12/2023 06:41 WG2128627 (S) 2,4,6-Tribromophenol 54.3 10.0-155 09/12/2023 06:41 WG2128627 (S) p-Terphenyl-d14 66.7 10.0-128 09/12/2023 06:41 WG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane ND 0.000420 1.05 09/14/2023 15:30 WG2130709 (S) Nitrobenzene-d5 34.2 10.0-120 09/14/2023 15:30 WG2130709 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 27 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 27 of 82 SAMPLE RESULTS - 08 L1653392 MW-12S Collected date/time: 09/06/23 10:20 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:41 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 09/08/2023 20:50 WG2128429 Barium,Dissolved 0.0859 0.00500 1 09/08/2023 20:50 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:50 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:50 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 20:50 WG2128429 Lead,Dissolved ND 0.00600 1 09/08/2023 20:50 WG2128429 Manganese,Dissolved 0.141 0.0100 1 09/08/2023 20:50 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:50 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:50 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 08:07 WG2129193 Acrolein ND 0.0500 1 09/09/2023 08:07 WG2129193 Acrylonitrile ND 0.0100 1 09/09/2023 08:07 WG2129193 Benzene ND 0.00100 1 09/09/2023 08:07 WG2129193 Bromobenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 Bromodichloromethane ND 0.00100 1 09/09/2023 08:07 WG2129193 Bromoform ND 0.00100 1 09/09/2023 08:07 WG2129193 Bromomethane ND 0.00500 1 09/09/2023 08:07 WG2129193 n-Butylbenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 sec-Butylbenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 tert-Butylbenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 Carbon tetrachloride ND 0.00100 1 09/09/2023 08:07 WG2129193 Chlorobenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 Chlorodibromomethane ND 0.00100 1 09/09/2023 08:07 WG2129193 Chloroethane ND 0.00500 1 09/09/2023 08:07 WG2129193 Chloroform ND 0.00500 1 09/09/2023 08:07 WG2129193 Chloromethane ND 0.00250 1 09/09/2023 08:07 WG2129193 2-Chlorotoluene ND 0.00100 1 09/09/2023 08:07 WG2129193 4-Chlorotoluene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 08:07 WG2129193 1,2-Dibromoethane ND 0.00100 1 09/09/2023 08:07 WG2129193 Dibromomethane ND 0.00100 1 09/09/2023 08:07 WG2129193 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 08:07 WG2129193 1,1-Dichloroethane ND 0.00100 1 09/09/2023 08:07 WG2129193 1,2-Dichloroethane ND 0.00100 1 09/09/2023 08:07 WG2129193 1,1-Dichloroethene 0.00130 0.00100 1 09/09/2023 08:07 WG2129193 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 08:07 WG2129193 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,2-Dichloropropane ND 0.00100 1 09/09/2023 08:07 WG2129193 1,1-Dichloropropene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,3-Dichloropropane ND 0.00100 1 09/09/2023 08:07 WG2129193 cis-1,3-Dichloropropene ND J4 0.00100 1 09/09/2023 08:07 WG2129193 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 08:07 WG2129193 2,2-Dichloropropane ND 0.00100 1 09/09/2023 08:07 WG2129193 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 28 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 28 of 82 SAMPLE RESULTS - 08 L1653392 MW-12S Collected date/time: 09/06/23 10:20 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 08:07 WG2129193 Ethylbenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 08:07 WG2129193 Isopropylbenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 p-Isopropyltoluene ND 0.00100 1 09/09/2023 08:07 WG2129193 2-Butanone (MEK)ND 0.0100 1 09/09/2023 08:07 WG2129193 Methylene Chloride ND 0.00500 1 09/09/2023 08:07 WG2129193 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 08:07 WG2129193 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 08:07 WG2129193 Naphthalene ND 0.00500 1 09/09/2023 08:07 WG2129193 n-Propylbenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 Styrene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 08:07 WG2129193 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 08:07 WG2129193 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 08:07 WG2129193 Tetrachloroethene ND 0.00100 1 09/09/2023 08:07 WG2129193 Toluene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,2,3-Trichlorobenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 08:07 WG2129193 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 08:07 WG2129193 Trichloroethene ND 0.00100 1 09/09/2023 08:07 WG2129193 Trichlorofluoromethane ND 0.00500 1 09/09/2023 08:07 WG2129193 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 08:07 WG2129193 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 Vinyl chloride ND 0.00100 1 09/09/2023 08:07 WG2129193 Xylenes, Total ND 0.00300 1 09/09/2023 08:07 WG2129193 (S) Toluene-d8 114 80.0-120 09/09/2023 08:07 WG2129193 (S) 4-Bromofluorobenzene 103 77.0-126 09/09/2023 08:07 WG2129193 (S) 1,2-Dichloroethane-d4 104 70.0-130 09/09/2023 08:07 WG2129193 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/12/2023 07:02 WG2128627 Acenaphthylene ND 0.00100 1 09/12/2023 07:02 WG2128627 Anthracene ND 0.00100 1 09/12/2023 07:02 WG2128627 Benzidine ND J4 0.0100 1 09/12/2023 07:02 WG2128627 Benzo(a)anthracene ND 0.00100 1 09/12/2023 07:02 WG2128627 Benzo(b)fluoranthene ND 0.00100 1 09/12/2023 07:02 WG2128627 Benzo(k)fluoranthene ND 0.00100 1 09/12/2023 07:02 WG2128627 Benzo(g,h,i)perylene ND 0.00100 1 09/12/2023 07:02 WG2128627 Benzo(a)pyrene ND 0.00100 1 09/12/2023 07:02 WG2128627 Bis(2-chlorethoxy)methane ND 0.0100 1 09/12/2023 07:02 WG2128627 Bis(2-chloroethyl)ether ND 0.0100 1 09/12/2023 07:02 WG2128627 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/12/2023 07:02 WG2128627 4-Bromophenyl-phenylether ND 0.0100 1 09/12/2023 07:02 WG2128627 2-Chloronaphthalene ND 0.00100 1 09/12/2023 07:02 WG2128627 4-Chlorophenyl-phenylether ND 0.0100 1 09/12/2023 07:02 WG2128627 Chrysene ND 0.00100 1 09/12/2023 07:02 WG2128627 Dibenz(a,h)anthracene ND 0.00100 1 09/12/2023 07:02 WG2128627 1,2-Dichlorobenzene ND 0.0100 1 09/12/2023 07:02 WG2128627 1,3-Dichlorobenzene ND 0.0100 1 09/12/2023 07:02 WG2128627 1,4-Dichlorobenzene ND 0.0100 1 09/12/2023 07:02 WG2128627 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 29 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 29 of 82 SAMPLE RESULTS - 08 L1653392 MW-12S Collected date/time: 09/06/23 10:20 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/12/2023 07:02 WG2128627 2,4-Dinitrotoluene ND 0.0100 1 09/12/2023 07:02 WG2128627 2,6-Dinitrotoluene ND 0.0100 1 09/12/2023 07:02 WG2128627 Fluoranthene ND 0.00100 1 09/12/2023 07:02 WG2128627 Fluorene ND 0.00100 1 09/12/2023 07:02 WG2128627 Hexachlorobenzene ND 0.00100 1 09/12/2023 07:02 WG2128627 Hexachloro-1,3-butadiene ND 0.0100 1 09/12/2023 07:02 WG2128627 Hexachlorocyclopentadiene ND 0.0100 1 09/12/2023 07:02 WG2128627 Hexachloroethane ND 0.0100 1 09/12/2023 07:02 WG2128627 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/12/2023 07:02 WG2128627 Isophorone ND 0.0100 1 09/12/2023 07:02 WG2128627 Naphthalene ND 0.00100 1 09/12/2023 07:02 WG2128627 Nitrobenzene ND 0.0100 1 09/12/2023 07:02 WG2128627 n-Nitrosodimethylamine ND 0.0100 1 09/12/2023 07:02 WG2128627 n-Nitrosodiphenylamine ND 0.0100 1 09/12/2023 07:02 WG2128627 n-Nitrosodi-n-propylamine ND 0.0100 1 09/12/2023 07:02 WG2128627 Phenanthrene ND 0.00100 1 09/12/2023 07:02 WG2128627 Benzylbutyl phthalate ND 0.00300 1 09/12/2023 07:02 WG2128627 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/12/2023 07:02 WG2128627 Di-n-butyl phthalate ND 0.00300 1 09/12/2023 07:02 WG2128627 Diethyl phthalate ND 0.00300 1 09/12/2023 07:02 WG2128627 Dimethyl phthalate ND 0.00300 1 09/12/2023 07:02 WG2128627 Di-n-octyl phthalate ND 0.00300 1 09/12/2023 07:02 WG2128627 Pyrene ND 0.00100 1 09/12/2023 07:02 WG2128627 1,2,4-Trichlorobenzene ND 0.0100 1 09/12/2023 07:02 WG2128627 4-Chloro-3-methylphenol ND 0.0100 1 09/12/2023 07:02 WG2128627 2-Chlorophenol ND 0.0100 1 09/12/2023 07:02 WG2128627 2,4-Dichlorophenol ND 0.0100 1 09/12/2023 07:02 WG2128627 2,4-Dimethylphenol ND 0.0100 1 09/12/2023 07:02 WG2128627 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/12/2023 07:02 WG2128627 2,4-Dinitrophenol ND 0.0100 1 09/12/2023 07:02 WG2128627 2-Nitrophenol ND 0.0100 1 09/12/2023 07:02 WG2128627 4-Nitrophenol ND 0.0100 1 09/12/2023 07:02 WG2128627 Pentachlorophenol ND 0.0100 1 09/12/2023 07:02 WG2128627 Phenol ND 0.0100 1 09/12/2023 07:02 WG2128627 2,4,6-Trichlorophenol ND 0.0100 1 09/12/2023 07:02 WG2128627 (S) 2-Fluorophenol 21.5 10.0-120 09/12/2023 07:02 WG2128627 (S) Phenol-d5 15.5 10.0-120 09/12/2023 07:02 WG2128627 (S) Nitrobenzene-d5 59.6 10.0-127 09/12/2023 07:02 WG2128627 (S) 2-Fluorobiphenyl 59.7 10.0-130 09/12/2023 07:02 WG2128627 (S) 2,4,6-Tribromophenol 35.7 10.0-155 09/12/2023 07:02 WG2128627 (S) p-Terphenyl-d14 54.2 10.0-128 09/12/2023 07:02 WG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00141 0.000408 1.02 09/14/2023 15:49 WG2130709 (S) Nitrobenzene-d5 36.3 10.0-120 09/14/2023 15:49 WG2130709 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 30 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 30 of 82 SAMPLE RESULTS - 09 L1653392 MW-17 Collected date/time: 09/06/23 11:15 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:44 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 09/08/2023 20:53 WG2128429 Barium,Dissolved 0.102 0.00500 1 09/08/2023 20:53 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:53 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:53 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 20:53 WG2128429 Lead,Dissolved 0.00601 0.00600 1 09/08/2023 20:53 WG2128429 Manganese,Dissolved 0.211 0.0100 1 09/08/2023 20:53 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:53 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:53 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 10:39 WG2129196 Acrolein ND 0.0500 1 09/09/2023 10:39 WG2129196 Acrylonitrile ND 0.0100 1 09/09/2023 10:39 WG2129196 Benzene ND 0.00100 1 09/09/2023 10:39 WG2129196 Bromobenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 Bromodichloromethane ND 0.00100 1 09/09/2023 10:39 WG2129196 Bromoform ND 0.00100 1 09/09/2023 10:39 WG2129196 Bromomethane ND 0.00500 1 09/09/2023 10:39 WG2129196 n-Butylbenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 sec-Butylbenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 tert-Butylbenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 Carbon tetrachloride ND 0.00100 1 09/09/2023 10:39 WG2129196 Chlorobenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 Chlorodibromomethane ND 0.00100 1 09/09/2023 10:39 WG2129196 Chloroethane ND 0.00500 1 09/09/2023 10:39 WG2129196 Chloroform ND 0.00500 1 09/09/2023 10:39 WG2129196 Chloromethane ND 0.00250 1 09/09/2023 10:39 WG2129196 2-Chlorotoluene ND 0.00100 1 09/09/2023 10:39 WG2129196 4-Chlorotoluene ND 0.00100 1 09/09/2023 10:39 WG2129196 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 10:39 WG2129196 1,2-Dibromoethane ND 0.00100 1 09/09/2023 10:39 WG2129196 Dibromomethane ND 0.00100 1 09/09/2023 10:39 WG2129196 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 10:39 WG2129196 1,1-Dichloroethane ND 0.00100 1 09/09/2023 10:39 WG2129196 1,2-Dichloroethane ND 0.00100 1 09/09/2023 10:39 WG2129196 1,1-Dichloroethene ND 0.00100 1 09/09/2023 10:39 WG2129196 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 10:39 WG2129196 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 10:39 WG2129196 1,2-Dichloropropane ND 0.00100 1 09/09/2023 10:39 WG2129196 1,1-Dichloropropene ND 0.00100 1 09/09/2023 10:39 WG2129196 1,3-Dichloropropane ND 0.00100 1 09/09/2023 10:39 WG2129196 cis-1,3-Dichloropropene ND 0.00100 1 09/09/2023 10:39 WG2129196 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 10:39 WG2129196 2,2-Dichloropropane ND 0.00100 1 09/09/2023 10:39 WG2129196 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 31 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 31 of 82 SAMPLE RESULTS - 09 L1653392 MW-17 Collected date/time: 09/06/23 11:15 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 10:39 WG2129196 Ethylbenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 10:39 WG2129196 Isopropylbenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 p-Isopropyltoluene ND 0.00100 1 09/09/2023 10:39 WG2129196 2-Butanone (MEK)ND 0.0100 1 09/09/2023 10:39 WG2129196 Methylene Chloride ND 0.00500 1 09/09/2023 10:39 WG2129196 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 10:39 WG2129196 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 10:39 WG2129196 Naphthalene ND 0.00500 1 09/09/2023 10:39 WG2129196 n-Propylbenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 Styrene ND 0.00100 1 09/09/2023 10:39 WG2129196 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 10:39 WG2129196 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 10:39 WG2129196 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 10:39 WG2129196 Tetrachloroethene ND 0.00100 1 09/09/2023 10:39 WG2129196 Toluene ND 0.00100 1 09/09/2023 10:39 WG2129196 1,2,3-Trichlorobenzene ND J4 0.00100 1 09/09/2023 10:39 WG2129196 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 10:39 WG2129196 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 10:39 WG2129196 Trichloroethene ND 0.00100 1 09/09/2023 10:39 WG2129196 Trichlorofluoromethane ND 0.00500 1 09/09/2023 10:39 WG2129196 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 10:39 WG2129196 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 Vinyl chloride ND 0.00100 1 09/09/2023 10:39 WG2129196 Xylenes, Total ND 0.00300 1 09/09/2023 10:39 WG2129196 (S) Toluene-d8 109 80.0-120 09/09/2023 10:39 WG2129196 (S) 4-Bromofluorobenzene 87.3 77.0-126 09/09/2023 10:39 WG2129196 (S) 1,2-Dichloroethane-d4 105 70.0-130 09/09/2023 10:39 WG2129196 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/14/2023 00:35 WG2129511 Acenaphthylene ND 0.00100 1 09/14/2023 00:35 WG2129511 Anthracene ND 0.00100 1 09/14/2023 00:35 WG2129511 Benzidine ND J4 0.0100 1 09/14/2023 00:35 WG2129511 Benzo(a)anthracene ND 0.00100 1 09/14/2023 00:35 WG2129511 Benzo(b)fluoranthene ND 0.00100 1 09/14/2023 00:35 WG2129511 Benzo(k)fluoranthene ND 0.00100 1 09/14/2023 00:35 WG2129511 Benzo(g,h,i)perylene ND 0.00100 1 09/14/2023 00:35 WG2129511 Benzo(a)pyrene ND 0.00100 1 09/14/2023 00:35 WG2129511 Bis(2-chlorethoxy)methane ND 0.0100 1 09/14/2023 00:35 WG2129511 Bis(2-chloroethyl)ether ND 0.0100 1 09/14/2023 00:35 WG2129511 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/14/2023 00:35 WG2129511 4-Bromophenyl-phenylether ND 0.0100 1 09/14/2023 00:35 WG2129511 2-Chloronaphthalene ND 0.00100 1 09/14/2023 00:35 WG2129511 4-Chlorophenyl-phenylether ND 0.0100 1 09/14/2023 00:35 WG2129511 Chrysene ND 0.00100 1 09/14/2023 00:35 WG2129511 Dibenz(a,h)anthracene ND 0.00100 1 09/14/2023 00:35 WG2129511 1,2-Dichlorobenzene ND 0.0100 1 09/14/2023 00:35 WG2129511 1,3-Dichlorobenzene ND 0.0100 1 09/14/2023 00:35 WG2129511 1,4-Dichlorobenzene ND 0.0100 1 09/14/2023 00:35 WG2129511 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 32 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 32 of 82 SAMPLE RESULTS - 09 L1653392 MW-17 Collected date/time: 09/06/23 11:15 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/14/2023 00:35 WG2129511 2,4-Dinitrotoluene ND 0.0100 1 09/14/2023 00:35 WG2129511 2,6-Dinitrotoluene ND 0.0100 1 09/14/2023 00:35 WG2129511 Fluoranthene ND 0.00100 1 09/14/2023 00:35 WG2129511 Fluorene ND 0.00100 1 09/14/2023 00:35 WG2129511 Hexachlorobenzene ND 0.00100 1 09/14/2023 00:35 WG2129511 Hexachloro-1,3-butadiene ND 0.0100 1 09/14/2023 00:35 WG2129511 Hexachlorocyclopentadiene ND 0.0100 1 09/14/2023 00:35 WG2129511 Hexachloroethane ND 0.0100 1 09/14/2023 00:35 WG2129511 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/14/2023 00:35 WG2129511 Isophorone ND 0.0100 1 09/14/2023 00:35 WG2129511 Naphthalene ND 0.00100 1 09/14/2023 00:35 WG2129511 Nitrobenzene ND 0.0100 1 09/14/2023 00:35 WG2129511 n-Nitrosodimethylamine ND 0.0100 1 09/14/2023 00:35 WG2129511 n-Nitrosodiphenylamine ND 0.0100 1 09/14/2023 00:35 WG2129511 n-Nitrosodi-n-propylamine ND 0.0100 1 09/14/2023 00:35 WG2129511 Phenanthrene ND 0.00100 1 09/14/2023 00:35 WG2129511 Benzylbutyl phthalate ND 0.00300 1 09/14/2023 00:35 WG2129511 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/14/2023 00:35 WG2129511 Di-n-butyl phthalate ND 0.00300 1 09/14/2023 00:35 WG2129511 Diethyl phthalate ND 0.00300 1 09/14/2023 00:35 WG2129511 Dimethyl phthalate ND 0.00300 1 09/14/2023 00:35 WG2129511 Di-n-octyl phthalate ND 0.00300 1 09/14/2023 00:35 WG2129511 Pyrene ND 0.00100 1 09/14/2023 00:35 WG2129511 1,2,4-Trichlorobenzene ND 0.0100 1 09/14/2023 00:35 WG2129511 4-Chloro-3-methylphenol ND 0.0100 1 09/14/2023 00:35 WG2129511 2-Chlorophenol ND 0.0100 1 09/14/2023 00:35 WG2129511 2,4-Dichlorophenol ND 0.0100 1 09/14/2023 00:35 WG2129511 2,4-Dimethylphenol ND 0.0100 1 09/14/2023 00:35 WG2129511 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/14/2023 00:35 WG2129511 2,4-Dinitrophenol ND 0.0100 1 09/14/2023 00:35 WG2129511 2-Nitrophenol ND 0.0100 1 09/14/2023 00:35 WG2129511 4-Nitrophenol ND 0.0100 1 09/14/2023 00:35 WG2129511 Pentachlorophenol ND 0.0100 1 09/14/2023 00:35 WG2129511 Phenol ND 0.0100 1 09/14/2023 00:35 WG2129511 2,4,6-Trichlorophenol ND 0.0100 1 09/14/2023 00:35 WG2129511 (S) 2-Fluorophenol 39.8 10.0-120 09/14/2023 00:35 WG2129511 (S) Phenol-d5 27.5 10.0-120 09/14/2023 00:35 WG2129511 (S) Nitrobenzene-d5 60.8 10.0-127 09/14/2023 00:35 WG2129511 (S) 2-Fluorobiphenyl 56.3 10.0-130 09/14/2023 00:35 WG2129511 (S) 2,4,6-Tribromophenol 59.5 10.0-155 09/14/2023 00:35 WG2129511 (S) p-Terphenyl-d14 68.1 10.0-128 09/14/2023 00:35 WG2129511 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00257 0.000400 1 09/14/2023 12:56 WG2130709 (S) Nitrobenzene-d5 45.0 10.0-120 09/14/2023 12:56 WG2130709 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 33 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 33 of 82 SAMPLE RESULTS - 10 L1653392 MW-18 Collected date/time: 09/06/23 12:10 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:46 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 09/08/2023 20:56 WG2128429 Barium,Dissolved 0.146 0.00500 1 09/08/2023 20:56 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:56 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:56 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 20:56 WG2128429 Lead,Dissolved ND 0.00600 1 09/08/2023 20:56 WG2128429 Manganese,Dissolved 0.168 0.0100 1 09/08/2023 20:56 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:56 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:56 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 10:59 WG2129196 Acrolein ND 0.0500 1 09/09/2023 10:59 WG2129196 Acrylonitrile ND 0.0100 1 09/09/2023 10:59 WG2129196 Benzene ND 0.00100 1 09/09/2023 10:59 WG2129196 Bromobenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 Bromodichloromethane ND 0.00100 1 09/09/2023 10:59 WG2129196 Bromoform ND 0.00100 1 09/09/2023 10:59 WG2129196 Bromomethane ND 0.00500 1 09/09/2023 10:59 WG2129196 n-Butylbenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 sec-Butylbenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 tert-Butylbenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 Carbon tetrachloride ND 0.00100 1 09/09/2023 10:59 WG2129196 Chlorobenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 Chlorodibromomethane ND 0.00100 1 09/09/2023 10:59 WG2129196 Chloroethane ND 0.00500 1 09/09/2023 10:59 WG2129196 Chloroform ND 0.00500 1 09/09/2023 10:59 WG2129196 Chloromethane ND 0.00250 1 09/09/2023 10:59 WG2129196 2-Chlorotoluene ND 0.00100 1 09/09/2023 10:59 WG2129196 4-Chlorotoluene ND 0.00100 1 09/09/2023 10:59 WG2129196 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 10:59 WG2129196 1,2-Dibromoethane ND 0.00100 1 09/09/2023 10:59 WG2129196 Dibromomethane ND 0.00100 1 09/09/2023 10:59 WG2129196 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 10:59 WG2129196 1,1-Dichloroethane ND 0.00100 1 09/09/2023 10:59 WG2129196 1,2-Dichloroethane ND 0.00100 1 09/09/2023 10:59 WG2129196 1,1-Dichloroethene ND 0.00100 1 09/09/2023 10:59 WG2129196 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 10:59 WG2129196 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 10:59 WG2129196 1,2-Dichloropropane ND 0.00100 1 09/09/2023 10:59 WG2129196 1,1-Dichloropropene ND 0.00100 1 09/09/2023 10:59 WG2129196 1,3-Dichloropropane ND 0.00100 1 09/09/2023 10:59 WG2129196 cis-1,3-Dichloropropene ND 0.00100 1 09/09/2023 10:59 WG2129196 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 10:59 WG2129196 2,2-Dichloropropane ND 0.00100 1 09/09/2023 10:59 WG2129196 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 34 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 34 of 82 SAMPLE RESULTS - 10 L1653392 MW-18 Collected date/time: 09/06/23 12:10 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 10:59 WG2129196 Ethylbenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 10:59 WG2129196 Isopropylbenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 p-Isopropyltoluene ND 0.00100 1 09/09/2023 10:59 WG2129196 2-Butanone (MEK)ND 0.0100 1 09/09/2023 10:59 WG2129196 Methylene Chloride ND 0.00500 1 09/09/2023 10:59 WG2129196 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 10:59 WG2129196 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 10:59 WG2129196 Naphthalene ND 0.00500 1 09/09/2023 10:59 WG2129196 n-Propylbenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 Styrene ND 0.00100 1 09/09/2023 10:59 WG2129196 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 10:59 WG2129196 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 10:59 WG2129196 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 10:59 WG2129196 Tetrachloroethene ND 0.00100 1 09/09/2023 10:59 WG2129196 Toluene ND 0.00100 1 09/09/2023 10:59 WG2129196 1,2,3-Trichlorobenzene ND J4 0.00100 1 09/09/2023 10:59 WG2129196 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 10:59 WG2129196 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 10:59 WG2129196 Trichloroethene ND 0.00100 1 09/09/2023 10:59 WG2129196 Trichlorofluoromethane ND 0.00500 1 09/09/2023 10:59 WG2129196 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 10:59 WG2129196 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 Vinyl chloride ND 0.00100 1 09/09/2023 10:59 WG2129196 Xylenes, Total ND 0.00300 1 09/09/2023 10:59 WG2129196 (S) Toluene-d8 107 80.0-120 09/09/2023 10:59 WG2129196 (S) 4-Bromofluorobenzene 99.8 77.0-126 09/09/2023 10:59 WG2129196 (S) 1,2-Dichloroethane-d4 106 70.0-130 09/09/2023 10:59 WG2129196 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/13/2023 18:32 WG2129511 Acenaphthylene ND 0.00100 1 09/13/2023 18:32 WG2129511 Anthracene ND 0.00100 1 09/13/2023 18:32 WG2129511 Benzidine ND J4 0.0100 1 09/13/2023 18:32 WG2129511 Benzo(a)anthracene ND 0.00100 1 09/13/2023 18:32 WG2129511 Benzo(b)fluoranthene ND 0.00100 1 09/13/2023 18:32 WG2129511 Benzo(k)fluoranthene ND 0.00100 1 09/13/2023 18:32 WG2129511 Benzo(g,h,i)perylene ND 0.00100 1 09/13/2023 18:32 WG2129511 Benzo(a)pyrene ND 0.00100 1 09/13/2023 18:32 WG2129511 Bis(2-chlorethoxy)methane ND 0.0100 1 09/13/2023 18:32 WG2129511 Bis(2-chloroethyl)ether ND 0.0100 1 09/13/2023 18:32 WG2129511 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/13/2023 18:32 WG2129511 4-Bromophenyl-phenylether ND 0.0100 1 09/13/2023 18:32 WG2129511 2-Chloronaphthalene ND 0.00100 1 09/13/2023 18:32 WG2129511 4-Chlorophenyl-phenylether ND 0.0100 1 09/13/2023 18:32 WG2129511 Chrysene ND 0.00100 1 09/13/2023 18:32 WG2129511 Dibenz(a,h)anthracene ND 0.00100 1 09/13/2023 18:32 WG2129511 1,2-Dichlorobenzene ND 0.0100 1 09/13/2023 18:32 WG2129511 1,3-Dichlorobenzene ND 0.0100 1 09/13/2023 18:32 WG2129511 1,4-Dichlorobenzene ND 0.0100 1 09/13/2023 18:32 WG2129511 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 35 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 35 of 82 SAMPLE RESULTS - 10 L1653392 MW-18 Collected date/time: 09/06/23 12:10 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/13/2023 18:32 WG2129511 2,4-Dinitrotoluene ND 0.0100 1 09/13/2023 18:32 WG2129511 2,6-Dinitrotoluene ND 0.0100 1 09/13/2023 18:32 WG2129511 Fluoranthene ND 0.00100 1 09/13/2023 18:32 WG2129511 Fluorene ND 0.00100 1 09/13/2023 18:32 WG2129511 Hexachlorobenzene ND 0.00100 1 09/13/2023 18:32 WG2129511 Hexachloro-1,3-butadiene ND 0.0100 1 09/13/2023 18:32 WG2129511 Hexachlorocyclopentadiene ND 0.0100 1 09/13/2023 18:32 WG2129511 Hexachloroethane ND 0.0100 1 09/13/2023 18:32 WG2129511 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/13/2023 18:32 WG2129511 Isophorone ND 0.0100 1 09/13/2023 18:32 WG2129511 Naphthalene ND 0.00100 1 09/13/2023 18:32 WG2129511 Nitrobenzene ND 0.0100 1 09/13/2023 18:32 WG2129511 n-Nitrosodimethylamine ND 0.0100 1 09/13/2023 18:32 WG2129511 n-Nitrosodiphenylamine ND 0.0100 1 09/13/2023 18:32 WG2129511 n-Nitrosodi-n-propylamine ND 0.0100 1 09/13/2023 18:32 WG2129511 Phenanthrene ND 0.00100 1 09/13/2023 18:32 WG2129511 Benzylbutyl phthalate ND 0.00300 1 09/13/2023 18:32 WG2129511 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/13/2023 18:32 WG2129511 Di-n-butyl phthalate ND 0.00300 1 09/13/2023 18:32 WG2129511 Diethyl phthalate ND 0.00300 1 09/13/2023 18:32 WG2129511 Dimethyl phthalate ND 0.00300 1 09/13/2023 18:32 WG2129511 Di-n-octyl phthalate ND 0.00300 1 09/13/2023 18:32 WG2129511 Pyrene ND 0.00100 1 09/13/2023 18:32 WG2129511 1,2,4-Trichlorobenzene ND 0.0100 1 09/13/2023 18:32 WG2129511 4-Chloro-3-methylphenol ND 0.0100 1 09/13/2023 18:32 WG2129511 2-Chlorophenol ND 0.0100 1 09/13/2023 18:32 WG2129511 2,4-Dichlorophenol ND 0.0100 1 09/13/2023 18:32 WG2129511 2,4-Dimethylphenol ND 0.0100 1 09/13/2023 18:32 WG2129511 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/13/2023 18:32 WG2129511 2,4-Dinitrophenol ND 0.0100 1 09/13/2023 18:32 WG2129511 2-Nitrophenol ND 0.0100 1 09/13/2023 18:32 WG2129511 4-Nitrophenol ND 0.0100 1 09/13/2023 18:32 WG2129511 Pentachlorophenol ND 0.0100 1 09/13/2023 18:32 WG2129511 Phenol ND 0.0100 1 09/13/2023 18:32 WG2129511 2,4,6-Trichlorophenol ND 0.0100 1 09/13/2023 18:32 WG2129511 (S) 2-Fluorophenol 39.8 10.0-120 09/13/2023 18:32 WG2129511 (S) Phenol-d5 26.8 10.0-120 09/13/2023 18:32 WG2129511 (S) Nitrobenzene-d5 54.5 10.0-127 09/13/2023 18:32 WG2129511 (S) 2-Fluorobiphenyl 54.1 10.0-130 09/13/2023 18:32 WG2129511 (S) 2,4,6-Tribromophenol 54.0 10.0-155 09/13/2023 18:32 WG2129511 (S) p-Terphenyl-d14 64.3 10.0-128 09/13/2023 18:32 WG2129511 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00248 0.000400 1 09/14/2023 13:16 WG2130709 (S) Nitrobenzene-d5 47.5 10.0-120 09/14/2023 13:16 WG2130709 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 36 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 36 of 82 SAMPLE RESULTS - 11 L1653392 MW-13D Collected date/time: 09/06/23 14:35 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:48 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.254 0.0100 1 09/08/2023 20:58 WG2128429 Barium,Dissolved 0.140 0.00500 1 09/08/2023 20:58 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:58 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:58 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 20:58 WG2128429 Lead,Dissolved ND 0.00600 1 09/08/2023 20:58 WG2128429 Manganese,Dissolved ND 0.0100 1 09/08/2023 20:58 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:58 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:58 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 11:20 WG2129196 Acrolein ND 0.0500 1 09/09/2023 11:20 WG2129196 Acrylonitrile ND 0.0100 1 09/09/2023 11:20 WG2129196 Benzene ND 0.00100 1 09/09/2023 11:20 WG2129196 Bromobenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 Bromodichloromethane ND 0.00100 1 09/09/2023 11:20 WG2129196 Bromoform ND 0.00100 1 09/09/2023 11:20 WG2129196 Bromomethane ND 0.00500 1 09/09/2023 11:20 WG2129196 n-Butylbenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 sec-Butylbenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 tert-Butylbenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 Carbon tetrachloride ND 0.00100 1 09/09/2023 11:20 WG2129196 Chlorobenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 Chlorodibromomethane ND 0.00100 1 09/09/2023 11:20 WG2129196 Chloroethane ND 0.00500 1 09/09/2023 11:20 WG2129196 Chloroform ND 0.00500 1 09/09/2023 11:20 WG2129196 Chloromethane ND 0.00250 1 09/09/2023 11:20 WG2129196 2-Chlorotoluene ND 0.00100 1 09/09/2023 11:20 WG2129196 4-Chlorotoluene ND 0.00100 1 09/09/2023 11:20 WG2129196 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 11:20 WG2129196 1,2-Dibromoethane ND 0.00100 1 09/09/2023 11:20 WG2129196 Dibromomethane ND 0.00100 1 09/09/2023 11:20 WG2129196 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 11:20 WG2129196 1,1-Dichloroethane ND 0.00100 1 09/09/2023 11:20 WG2129196 1,2-Dichloroethane ND 0.00100 1 09/09/2023 11:20 WG2129196 1,1-Dichloroethene 0.0117 0.00100 1 09/09/2023 11:20 WG2129196 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 11:20 WG2129196 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 11:20 WG2129196 1,2-Dichloropropane ND 0.00100 1 09/09/2023 11:20 WG2129196 1,1-Dichloropropene ND 0.00100 1 09/09/2023 11:20 WG2129196 1,3-Dichloropropane ND 0.00100 1 09/09/2023 11:20 WG2129196 cis-1,3-Dichloropropene ND 0.00100 1 09/09/2023 11:20 WG2129196 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 11:20 WG2129196 2,2-Dichloropropane ND 0.00100 1 09/09/2023 11:20 WG2129196 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 37 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 37 of 82 SAMPLE RESULTS - 11 L1653392 MW-13D Collected date/time: 09/06/23 14:35 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 11:20 WG2129196 Ethylbenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 11:20 WG2129196 Isopropylbenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 p-Isopropyltoluene ND 0.00100 1 09/09/2023 11:20 WG2129196 2-Butanone (MEK)ND 0.0100 1 09/09/2023 11:20 WG2129196 Methylene Chloride ND 0.00500 1 09/09/2023 11:20 WG2129196 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 11:20 WG2129196 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 11:20 WG2129196 Naphthalene ND 0.00500 1 09/09/2023 11:20 WG2129196 n-Propylbenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 Styrene ND 0.00100 1 09/09/2023 11:20 WG2129196 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 11:20 WG2129196 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 11:20 WG2129196 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 11:20 WG2129196 Tetrachloroethene ND 0.00100 1 09/09/2023 11:20 WG2129196 Toluene ND 0.00100 1 09/09/2023 11:20 WG2129196 1,2,3-Trichlorobenzene ND J4 0.00100 1 09/09/2023 11:20 WG2129196 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 11:20 WG2129196 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 11:20 WG2129196 Trichloroethene ND 0.00100 1 09/09/2023 11:20 WG2129196 Trichlorofluoromethane ND 0.00500 1 09/09/2023 11:20 WG2129196 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 11:20 WG2129196 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 Vinyl chloride ND 0.00100 1 09/09/2023 11:20 WG2129196 Xylenes, Total ND 0.00300 1 09/09/2023 11:20 WG2129196 (S) Toluene-d8 107 80.0-120 09/09/2023 11:20 WG2129196 (S) 4-Bromofluorobenzene 100 77.0-126 09/09/2023 11:20 WG2129196 (S) 1,2-Dichloroethane-d4 107 70.0-130 09/09/2023 11:20 WG2129196 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/14/2023 00:57 WG2129511 Acenaphthylene ND 0.00100 1 09/14/2023 00:57 WG2129511 Anthracene ND 0.00100 1 09/14/2023 00:57 WG2129511 Benzidine ND J4 0.0100 1 09/14/2023 00:57 WG2129511 Benzo(a)anthracene ND 0.00100 1 09/14/2023 00:57 WG2129511 Benzo(b)fluoranthene ND 0.00100 1 09/14/2023 00:57 WG2129511 Benzo(k)fluoranthene ND 0.00100 1 09/14/2023 00:57 WG2129511 Benzo(g,h,i)perylene ND 0.00100 1 09/14/2023 00:57 WG2129511 Benzo(a)pyrene ND 0.00100 1 09/14/2023 00:57 WG2129511 Bis(2-chlorethoxy)methane ND 0.0100 1 09/14/2023 00:57 WG2129511 Bis(2-chloroethyl)ether ND 0.0100 1 09/14/2023 00:57 WG2129511 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/14/2023 00:57 WG2129511 4-Bromophenyl-phenylether ND 0.0100 1 09/14/2023 00:57 WG2129511 2-Chloronaphthalene ND 0.00100 1 09/14/2023 00:57 WG2129511 4-Chlorophenyl-phenylether ND 0.0100 1 09/14/2023 00:57 WG2129511 Chrysene ND 0.00100 1 09/14/2023 00:57 WG2129511 Dibenz(a,h)anthracene ND 0.00100 1 09/14/2023 00:57 WG2129511 1,2-Dichlorobenzene ND 0.0100 1 09/14/2023 00:57 WG2129511 1,3-Dichlorobenzene ND 0.0100 1 09/14/2023 00:57 WG2129511 1,4-Dichlorobenzene ND 0.0100 1 09/14/2023 00:57 WG2129511 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 38 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 38 of 82 SAMPLE RESULTS - 11 L1653392 MW-13D Collected date/time: 09/06/23 14:35 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/14/2023 00:57 WG2129511 2,4-Dinitrotoluene ND 0.0100 1 09/14/2023 00:57 WG2129511 2,6-Dinitrotoluene ND 0.0100 1 09/14/2023 00:57 WG2129511 Fluoranthene ND 0.00100 1 09/14/2023 00:57 WG2129511 Fluorene ND 0.00100 1 09/14/2023 00:57 WG2129511 Hexachlorobenzene ND 0.00100 1 09/14/2023 00:57 WG2129511 Hexachloro-1,3-butadiene ND 0.0100 1 09/14/2023 00:57 WG2129511 Hexachlorocyclopentadiene ND 0.0100 1 09/14/2023 00:57 WG2129511 Hexachloroethane ND 0.0100 1 09/14/2023 00:57 WG2129511 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/14/2023 00:57 WG2129511 Isophorone ND 0.0100 1 09/14/2023 00:57 WG2129511 Naphthalene ND 0.00100 1 09/14/2023 00:57 WG2129511 Nitrobenzene ND 0.0100 1 09/14/2023 00:57 WG2129511 n-Nitrosodimethylamine ND 0.0100 1 09/14/2023 00:57 WG2129511 n-Nitrosodiphenylamine ND 0.0100 1 09/14/2023 00:57 WG2129511 n-Nitrosodi-n-propylamine ND 0.0100 1 09/14/2023 00:57 WG2129511 Phenanthrene ND 0.00100 1 09/14/2023 00:57 WG2129511 Benzylbutyl phthalate ND 0.00300 1 09/14/2023 00:57 WG2129511 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/14/2023 00:57 WG2129511 Di-n-butyl phthalate ND 0.00300 1 09/14/2023 00:57 WG2129511 Diethyl phthalate ND 0.00300 1 09/14/2023 00:57 WG2129511 Dimethyl phthalate ND 0.00300 1 09/14/2023 00:57 WG2129511 Di-n-octyl phthalate ND 0.00300 1 09/14/2023 00:57 WG2129511 Pyrene ND 0.00100 1 09/14/2023 00:57 WG2129511 1,2,4-Trichlorobenzene ND 0.0100 1 09/14/2023 00:57 WG2129511 4-Chloro-3-methylphenol ND 0.0100 1 09/14/2023 00:57 WG2129511 2-Chlorophenol ND 0.0100 1 09/14/2023 00:57 WG2129511 2,4-Dichlorophenol ND 0.0100 1 09/14/2023 00:57 WG2129511 2,4-Dimethylphenol ND 0.0100 1 09/14/2023 00:57 WG2129511 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/14/2023 00:57 WG2129511 2,4-Dinitrophenol ND 0.0100 1 09/14/2023 00:57 WG2129511 2-Nitrophenol ND 0.0100 1 09/14/2023 00:57 WG2129511 4-Nitrophenol ND 0.0100 1 09/14/2023 00:57 WG2129511 Pentachlorophenol ND 0.0100 1 09/14/2023 00:57 WG2129511 Phenol ND 0.0100 1 09/14/2023 00:57 WG2129511 2,4,6-Trichlorophenol ND 0.0100 1 09/14/2023 00:57 WG2129511 (S) 2-Fluorophenol 31.1 10.0-120 09/14/2023 00:57 WG2129511 (S) Phenol-d5 21.7 10.0-120 09/14/2023 00:57 WG2129511 (S) Nitrobenzene-d5 49.8 10.0-127 09/14/2023 00:57 WG2129511 (S) 2-Fluorobiphenyl 47.8 10.0-130 09/14/2023 00:57 WG2129511 (S) 2,4,6-Tribromophenol 52.5 10.0-155 09/14/2023 00:57 WG2129511 (S) p-Terphenyl-d14 65.7 10.0-128 09/14/2023 00:57 WG2129511 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00105 0.000416 1.04 09/14/2023 13:35 WG2130709 (S) Nitrobenzene-d5 41.9 10.0-120 09/14/2023 13:35 WG2130709 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 39 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 39 of 82 SAMPLE RESULTS - 12 L1653392 MW-13S Collected date/time: 09/06/23 15:35 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:51 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 09/08/2023 21:07 WG2128429 Barium,Dissolved 0.0247 0.00500 1 09/08/2023 21:07 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 21:07 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 21:07 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 21:07 WG2128429 Lead,Dissolved 0.00751 0.00600 1 09/08/2023 21:07 WG2128429 Manganese,Dissolved 0.896 0.0100 1 09/08/2023 21:07 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 21:07 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 21:07 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 11:40 WG2129196 Acrolein ND 0.0500 1 09/09/2023 11:40 WG2129196 Acrylonitrile ND 0.0100 1 09/09/2023 11:40 WG2129196 Benzene ND 0.00100 1 09/09/2023 11:40 WG2129196 Bromobenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 Bromodichloromethane ND 0.00100 1 09/09/2023 11:40 WG2129196 Bromoform ND 0.00100 1 09/09/2023 11:40 WG2129196 Bromomethane ND 0.00500 1 09/09/2023 11:40 WG2129196 n-Butylbenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 sec-Butylbenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 tert-Butylbenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 Carbon tetrachloride ND 0.00100 1 09/09/2023 11:40 WG2129196 Chlorobenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 Chlorodibromomethane ND 0.00100 1 09/09/2023 11:40 WG2129196 Chloroethane ND 0.00500 1 09/09/2023 11:40 WG2129196 Chloroform 0.00603 0.00500 1 09/09/2023 11:40 WG2129196 Chloromethane ND 0.00250 1 09/09/2023 11:40 WG2129196 2-Chlorotoluene ND 0.00100 1 09/09/2023 11:40 WG2129196 4-Chlorotoluene ND 0.00100 1 09/09/2023 11:40 WG2129196 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 11:40 WG2129196 1,2-Dibromoethane ND 0.00100 1 09/09/2023 11:40 WG2129196 Dibromomethane ND 0.00100 1 09/09/2023 11:40 WG2129196 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 11:40 WG2129196 1,1-Dichloroethane ND 0.500 500 09/13/2023 06:39 WG2131061 1,2-Dichloroethane 0.0103 0.00100 1 09/09/2023 11:40 WG2129196 1,1-Dichloroethene 8.46 0.500 500 09/13/2023 06:39 WG2131061 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 11:40 WG2129196 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 11:40 WG2129196 1,2-Dichloropropane ND 0.00100 1 09/09/2023 11:40 WG2129196 1,1-Dichloropropene ND 0.00100 1 09/09/2023 11:40 WG2129196 1,3-Dichloropropane ND 0.00100 1 09/09/2023 11:40 WG2129196 cis-1,3-Dichloropropene ND 0.00100 1 09/09/2023 11:40 WG2129196 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 11:40 WG2129196 2,2-Dichloropropane ND 0.00100 1 09/09/2023 11:40 WG2129196 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 40 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 40 of 82 SAMPLE RESULTS - 12 L1653392 MW-13S Collected date/time: 09/06/23 15:35 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 11:40 WG2129196 Ethylbenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 11:40 WG2129196 Isopropylbenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 p-Isopropyltoluene ND 0.00100 1 09/09/2023 11:40 WG2129196 2-Butanone (MEK)ND 0.0100 1 09/09/2023 11:40 WG2129196 Methylene Chloride ND 0.00500 1 09/09/2023 11:40 WG2129196 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 11:40 WG2129196 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 11:40 WG2129196 Naphthalene ND 0.00500 1 09/09/2023 11:40 WG2129196 n-Propylbenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 Styrene ND 0.00100 1 09/09/2023 11:40 WG2129196 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 11:40 WG2129196 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 11:40 WG2129196 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 11:40 WG2129196 Tetrachloroethene ND 0.00100 1 09/09/2023 11:40 WG2129196 Toluene ND 0.00100 1 09/09/2023 11:40 WG2129196 1,2,3-Trichlorobenzene ND J4 0.00100 1 09/09/2023 11:40 WG2129196 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 1,1,1-Trichloroethane 0.138 0.00100 1 09/09/2023 11:40 WG2129196 1,1,2-Trichloroethane 0.00318 0.00100 1 09/09/2023 11:40 WG2129196 Trichloroethene 0.00817 0.00100 1 09/09/2023 11:40 WG2129196 Trichlorofluoromethane ND 0.00500 1 09/09/2023 11:40 WG2129196 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 11:40 WG2129196 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 Vinyl chloride 0.0699 0.00100 1 09/09/2023 11:40 WG2129196 Xylenes, Total ND 0.00300 1 09/09/2023 11:40 WG2129196 (S) Toluene-d8 109 80.0-120 09/09/2023 11:40 WG2129196 (S) Toluene-d8 114 80.0-120 09/13/2023 06:39 WG2131061 (S) 4-Bromofluorobenzene 94.3 77.0-126 09/09/2023 11:40 WG2129196 (S) 4-Bromofluorobenzene 104 77.0-126 09/13/2023 06:39 WG2131061 (S) 1,2-Dichloroethane-d4 109 70.0-130 09/09/2023 11:40 WG2129196 (S) 1,2-Dichloroethane-d4 112 70.0-130 09/13/2023 06:39 WG2131061 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/14/2023 01:39 WG2129511 Acenaphthylene ND 0.00100 1 09/14/2023 01:39 WG2129511 Anthracene ND 0.00100 1 09/14/2023 01:39 WG2129511 Benzidine ND J4 0.0100 1 09/14/2023 01:39 WG2129511 Benzo(a)anthracene ND 0.00100 1 09/14/2023 01:39 WG2129511 Benzo(b)fluoranthene ND 0.00100 1 09/14/2023 01:39 WG2129511 Benzo(k)fluoranthene ND 0.00100 1 09/14/2023 01:39 WG2129511 Benzo(g,h,i)perylene ND 0.00100 1 09/14/2023 01:39 WG2129511 Benzo(a)pyrene ND 0.00100 1 09/14/2023 01:39 WG2129511 Bis(2-chlorethoxy)methane ND 0.0100 1 09/14/2023 01:39 WG2129511 Bis(2-chloroethyl)ether ND 0.0100 1 09/14/2023 01:39 WG2129511 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/14/2023 01:39 WG2129511 4-Bromophenyl-phenylether ND 0.0100 1 09/14/2023 01:39 WG2129511 2-Chloronaphthalene ND 0.00100 1 09/14/2023 01:39 WG2129511 4-Chlorophenyl-phenylether ND 0.0100 1 09/14/2023 01:39 WG2129511 Chrysene ND 0.00100 1 09/14/2023 01:39 WG2129511 Dibenz(a,h)anthracene ND 0.00100 1 09/14/2023 01:39 WG2129511 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 41 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 41 of 82 SAMPLE RESULTS - 12 L1653392 MW-13S Collected date/time: 09/06/23 15:35 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,2-Dichlorobenzene ND 0.0100 1 09/14/2023 01:39 WG2129511 1,3-Dichlorobenzene ND 0.0100 1 09/14/2023 01:39 WG2129511 1,4-Dichlorobenzene ND 0.0100 1 09/14/2023 01:39 WG2129511 3,3-Dichlorobenzidine ND 0.0100 1 09/14/2023 01:39 WG2129511 2,4-Dinitrotoluene ND 0.0100 1 09/14/2023 01:39 WG2129511 2,6-Dinitrotoluene ND 0.0100 1 09/14/2023 01:39 WG2129511 Fluoranthene ND 0.00100 1 09/14/2023 01:39 WG2129511 Fluorene ND 0.00100 1 09/14/2023 01:39 WG2129511 Hexachlorobenzene ND 0.00100 1 09/14/2023 01:39 WG2129511 Hexachloro-1,3-butadiene ND 0.0100 1 09/14/2023 01:39 WG2129511 Hexachlorocyclopentadiene ND 0.0100 1 09/14/2023 01:39 WG2129511 Hexachloroethane ND 0.0100 1 09/14/2023 01:39 WG2129511 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/14/2023 01:39 WG2129511 Isophorone ND 0.0100 1 09/14/2023 01:39 WG2129511 Naphthalene ND 0.00100 1 09/14/2023 01:39 WG2129511 Nitrobenzene ND 0.0100 1 09/14/2023 01:39 WG2129511 n-Nitrosodimethylamine ND 0.0100 1 09/14/2023 01:39 WG2129511 n-Nitrosodiphenylamine ND 0.0100 1 09/14/2023 01:39 WG2129511 n-Nitrosodi-n-propylamine ND 0.0100 1 09/14/2023 01:39 WG2129511 Phenanthrene ND 0.00100 1 09/14/2023 01:39 WG2129511 Benzylbutyl phthalate ND 0.00300 1 09/14/2023 01:39 WG2129511 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/14/2023 01:39 WG2129511 Di-n-butyl phthalate ND 0.00300 1 09/14/2023 01:39 WG2129511 Diethyl phthalate ND 0.00300 1 09/14/2023 01:39 WG2129511 Dimethyl phthalate ND 0.00300 1 09/14/2023 01:39 WG2129511 Di-n-octyl phthalate ND 0.00300 1 09/14/2023 01:39 WG2129511 Pyrene ND 0.00100 1 09/14/2023 01:39 WG2129511 1,2,4-Trichlorobenzene ND 0.0100 1 09/14/2023 01:39 WG2129511 4-Chloro-3-methylphenol ND 0.0100 1 09/14/2023 01:39 WG2129511 2-Chlorophenol ND 0.0100 1 09/14/2023 01:39 WG2129511 2,4-Dichlorophenol ND 0.0100 1 09/14/2023 01:39 WG2129511 2,4-Dimethylphenol ND 0.0100 1 09/14/2023 01:39 WG2129511 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/14/2023 01:39 WG2129511 2,4-Dinitrophenol ND 0.0100 1 09/14/2023 01:39 WG2129511 2-Nitrophenol ND 0.0100 1 09/14/2023 01:39 WG2129511 4-Nitrophenol ND 0.0100 1 09/14/2023 01:39 WG2129511 Pentachlorophenol ND 0.0100 1 09/14/2023 01:39 WG2129511 Phenol ND 0.0100 1 09/14/2023 01:39 WG2129511 2,4,6-Trichlorophenol ND 0.0100 1 09/14/2023 01:39 WG2129511 (S) 2-Fluorophenol 41.1 10.0-120 09/14/2023 01:39 WG2129511 (S) Phenol-d5 34.6 10.0-120 09/14/2023 01:39 WG2129511 (S) Nitrobenzene-d5 56.7 10.0-127 09/14/2023 01:39 WG2129511 (S) 2-Fluorobiphenyl 53.5 10.0-130 09/14/2023 01:39 WG2129511 (S) 2,4,6-Tribromophenol 47.1 10.0-155 09/14/2023 01:39 WG2129511 (S) p-Terphenyl-d14 65.2 10.0-128 09/14/2023 01:39 WG2129511 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.798 E 0.000436 1.09 09/14/2023 16:09 WG2130709 (S) Nitrobenzene-d5 10.6 10.0-120 09/14/2023 16:09 WG2130709 Sample Narrative: L1653392-12 WG2130709: Duplicate Analysis performed due to QC failure. Reporting most compliant data. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 42 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 42 of 82 SAMPLE RESULTS - 13 L1653392 MW-8 Collected date/time: 09/06/23 11:12 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:53 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.214 0.0100 1 09/08/2023 21:10 WG2128429 Barium,Dissolved 0.327 0.00500 1 09/08/2023 21:10 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 21:10 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 21:10 WG2128429 Iron,Dissolved 0.289 0.100 1 09/08/2023 21:10 WG2128429 Lead,Dissolved 0.00736 0.00600 1 09/08/2023 21:10 WG2128429 Manganese,Dissolved 0.0295 0.0100 1 09/08/2023 21:10 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 21:10 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 21:10 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 12:01 WG2129196 Acrolein ND 0.0500 1 09/09/2023 12:01 WG2129196 Acrylonitrile ND 0.0100 1 09/09/2023 12:01 WG2129196 Benzene ND 0.00100 1 09/09/2023 12:01 WG2129196 Bromobenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 Bromodichloromethane ND 0.00100 1 09/09/2023 12:01 WG2129196 Bromoform ND 0.00100 1 09/09/2023 12:01 WG2129196 Bromomethane ND 0.00500 1 09/09/2023 12:01 WG2129196 n-Butylbenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 sec-Butylbenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 tert-Butylbenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 Carbon tetrachloride ND 0.00100 1 09/09/2023 12:01 WG2129196 Chlorobenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 Chlorodibromomethane ND 0.00100 1 09/09/2023 12:01 WG2129196 Chloroethane ND 0.00500 1 09/09/2023 12:01 WG2129196 Chloroform ND 0.00500 1 09/09/2023 12:01 WG2129196 Chloromethane ND 0.00250 1 09/09/2023 12:01 WG2129196 2-Chlorotoluene ND 0.00100 1 09/09/2023 12:01 WG2129196 4-Chlorotoluene ND 0.00100 1 09/09/2023 12:01 WG2129196 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 12:01 WG2129196 1,2-Dibromoethane ND 0.00100 1 09/09/2023 12:01 WG2129196 Dibromomethane ND 0.00100 1 09/09/2023 12:01 WG2129196 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 12:01 WG2129196 1,1-Dichloroethane ND 0.00100 1 09/13/2023 02:01 WG2131061 1,2-Dichloroethane ND 0.00100 1 09/09/2023 12:01 WG2129196 1,1-Dichloroethene ND 0.00100 1 09/13/2023 02:01 WG2131061 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 12:01 WG2129196 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 12:01 WG2129196 1,2-Dichloropropane ND 0.00100 1 09/09/2023 12:01 WG2129196 1,1-Dichloropropene ND 0.00100 1 09/09/2023 12:01 WG2129196 1,3-Dichloropropane ND 0.00100 1 09/09/2023 12:01 WG2129196 cis-1,3-Dichloropropene ND 0.00100 1 09/09/2023 12:01 WG2129196 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 12:01 WG2129196 2,2-Dichloropropane ND 0.00100 1 09/09/2023 12:01 WG2129196 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 43 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 43 of 82 SAMPLE RESULTS - 13 L1653392 MW-8 Collected date/time: 09/06/23 11:12 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 12:01 WG2129196 Ethylbenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 12:01 WG2129196 Isopropylbenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 p-Isopropyltoluene ND 0.00100 1 09/09/2023 12:01 WG2129196 2-Butanone (MEK)ND 0.0100 1 09/09/2023 12:01 WG2129196 Methylene Chloride ND 0.00500 1 09/09/2023 12:01 WG2129196 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 12:01 WG2129196 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 12:01 WG2129196 Naphthalene ND 0.00500 1 09/09/2023 12:01 WG2129196 n-Propylbenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 Styrene ND 0.00100 1 09/09/2023 12:01 WG2129196 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 12:01 WG2129196 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 12:01 WG2129196 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 12:01 WG2129196 Tetrachloroethene ND 0.00100 1 09/09/2023 12:01 WG2129196 Toluene ND 0.00100 1 09/09/2023 12:01 WG2129196 1,2,3-Trichlorobenzene ND J4 0.00100 1 09/09/2023 12:01 WG2129196 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 12:01 WG2129196 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 12:01 WG2129196 Trichloroethene ND 0.00100 1 09/09/2023 12:01 WG2129196 Trichlorofluoromethane ND 0.00500 1 09/09/2023 12:01 WG2129196 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 12:01 WG2129196 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 Vinyl chloride ND 0.00100 1 09/09/2023 12:01 WG2129196 Xylenes, Total ND 0.00300 1 09/09/2023 12:01 WG2129196 (S) Toluene-d8 105 80.0-120 09/09/2023 12:01 WG2129196 (S) Toluene-d8 113 80.0-120 09/13/2023 02:01 WG2131061 (S) 4-Bromofluorobenzene 98.2 77.0-126 09/09/2023 12:01 WG2129196 (S) 4-Bromofluorobenzene 101 77.0-126 09/13/2023 02:01 WG2131061 (S) 1,2-Dichloroethane-d4 109 70.0-130 09/09/2023 12:01 WG2129196 (S) 1,2-Dichloroethane-d4 109 70.0-130 09/13/2023 02:01 WG2131061 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane ND 0.000400 1 09/14/2023 13:54 WG2130709 (S) Nitrobenzene-d5 31.8 10.0-120 09/14/2023 13:54 WG2130709 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 44 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 44 of 82 SAMPLE RESULTS - 14 L1653392 GMW-8 Collected date/time: 09/06/23 14:12 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:55 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 09/08/2023 21:13 WG2128429 Barium,Dissolved 0.0447 0.00500 1 09/08/2023 21:13 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 21:13 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 21:13 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 21:13 WG2128429 Lead,Dissolved ND 0.00600 1 09/08/2023 21:13 WG2128429 Manganese,Dissolved 0.446 0.0100 1 09/08/2023 21:13 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 21:13 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 21:13 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 12:21 WG2129196 Acrolein ND 0.0500 1 09/09/2023 12:21 WG2129196 Acrylonitrile ND 0.0100 1 09/09/2023 12:21 WG2129196 Benzene ND 0.00100 1 09/09/2023 12:21 WG2129196 Bromobenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 Bromodichloromethane ND 0.00100 1 09/09/2023 12:21 WG2129196 Bromoform ND 0.00100 1 09/09/2023 12:21 WG2129196 Bromomethane ND 0.00500 1 09/09/2023 12:21 WG2129196 n-Butylbenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 sec-Butylbenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 tert-Butylbenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 Carbon tetrachloride ND 0.00100 1 09/09/2023 12:21 WG2129196 Chlorobenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 Chlorodibromomethane ND 0.00100 1 09/09/2023 12:21 WG2129196 Chloroethane ND 0.00500 1 09/09/2023 12:21 WG2129196 Chloroform ND 0.00500 1 09/09/2023 12:21 WG2129196 Chloromethane ND 0.00250 1 09/09/2023 12:21 WG2129196 2-Chlorotoluene ND 0.00100 1 09/09/2023 12:21 WG2129196 4-Chlorotoluene ND 0.00100 1 09/09/2023 12:21 WG2129196 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 12:21 WG2129196 1,2-Dibromoethane ND 0.00100 1 09/09/2023 12:21 WG2129196 Dibromomethane ND 0.00100 1 09/09/2023 12:21 WG2129196 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 12:21 WG2129196 1,1-Dichloroethane 0.00497 0.00100 1 09/09/2023 12:21 WG2129196 1,2-Dichloroethane ND 0.00100 1 09/09/2023 12:21 WG2129196 1,1-Dichloroethene 0.0135 0.00100 1 09/13/2023 02:22 WG2131061 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 12:21 WG2129196 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 12:21 WG2129196 1,2-Dichloropropane ND 0.00100 1 09/09/2023 12:21 WG2129196 1,1-Dichloropropene ND 0.00100 1 09/09/2023 12:21 WG2129196 1,3-Dichloropropane ND 0.00100 1 09/09/2023 12:21 WG2129196 cis-1,3-Dichloropropene ND 0.00100 1 09/09/2023 12:21 WG2129196 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 12:21 WG2129196 2,2-Dichloropropane ND 0.00100 1 09/09/2023 12:21 WG2129196 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 45 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 45 of 82 SAMPLE RESULTS - 14 L1653392 GMW-8 Collected date/time: 09/06/23 14:12 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 12:21 WG2129196 Ethylbenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 12:21 WG2129196 Isopropylbenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 p-Isopropyltoluene ND 0.00100 1 09/09/2023 12:21 WG2129196 2-Butanone (MEK)ND 0.0100 1 09/09/2023 12:21 WG2129196 Methylene Chloride ND 0.00500 1 09/09/2023 12:21 WG2129196 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 12:21 WG2129196 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 12:21 WG2129196 Naphthalene ND 0.00500 1 09/09/2023 12:21 WG2129196 n-Propylbenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 Styrene ND 0.00100 1 09/09/2023 12:21 WG2129196 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 12:21 WG2129196 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 12:21 WG2129196 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 12:21 WG2129196 Tetrachloroethene ND 0.00100 1 09/09/2023 12:21 WG2129196 Toluene ND 0.00100 1 09/09/2023 12:21 WG2129196 1,2,3-Trichlorobenzene ND J4 0.00100 1 09/09/2023 12:21 WG2129196 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 1,1,1-Trichloroethane 0.00182 0.00100 1 09/09/2023 12:21 WG2129196 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 12:21 WG2129196 Trichloroethene ND 0.00100 1 09/09/2023 12:21 WG2129196 Trichlorofluoromethane ND 0.00500 1 09/09/2023 12:21 WG2129196 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 12:21 WG2129196 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 Vinyl chloride ND 0.00100 1 09/09/2023 12:21 WG2129196 Xylenes, Total ND 0.00300 1 09/09/2023 12:21 WG2129196 (S) Toluene-d8 108 80.0-120 09/09/2023 12:21 WG2129196 (S) Toluene-d8 113 80.0-120 09/13/2023 02:22 WG2131061 (S) 4-Bromofluorobenzene 102 77.0-126 09/09/2023 12:21 WG2129196 (S) 4-Bromofluorobenzene 104 77.0-126 09/13/2023 02:22 WG2131061 (S) 1,2-Dichloroethane-d4 107 70.0-130 09/09/2023 12:21 WG2129196 (S) 1,2-Dichloroethane-d4 107 70.0-130 09/13/2023 02:22 WG2131061 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.0251 0.000400 1 09/14/2023 14:13 WG2130709 (S) Nitrobenzene-d5 42.2 10.0-120 09/14/2023 14:13 WG2130709 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 46 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 46 of 82 SAMPLE RESULTS - 15 L1653392 MW-9 Collected date/time: 09/06/23 13:45 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:58 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.332 0.0100 1 09/08/2023 21:15 WG2128429 Barium,Dissolved 0.257 0.00500 1 09/08/2023 21:15 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 21:15 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 21:15 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 21:15 WG2128429 Lead,Dissolved 0.00647 0.00600 1 09/08/2023 21:15 WG2128429 Manganese,Dissolved 0.0149 0.0100 1 09/08/2023 21:15 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 21:15 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 21:15 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 12:42 WG2129196 Acrolein ND 0.0500 1 09/09/2023 12:42 WG2129196 Acrylonitrile ND 0.0100 1 09/09/2023 12:42 WG2129196 Benzene ND 0.00100 1 09/09/2023 12:42 WG2129196 Bromobenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 Bromodichloromethane ND 0.00100 1 09/09/2023 12:42 WG2129196 Bromoform ND 0.00100 1 09/09/2023 12:42 WG2129196 Bromomethane ND 0.00500 1 09/09/2023 12:42 WG2129196 n-Butylbenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 sec-Butylbenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 tert-Butylbenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 Carbon tetrachloride ND 0.00100 1 09/09/2023 12:42 WG2129196 Chlorobenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 Chlorodibromomethane ND 0.00100 1 09/09/2023 12:42 WG2129196 Chloroethane ND 0.00500 1 09/09/2023 12:42 WG2129196 Chloroform ND 0.00500 1 09/09/2023 12:42 WG2129196 Chloromethane ND 0.00250 1 09/09/2023 12:42 WG2129196 2-Chlorotoluene ND 0.00100 1 09/09/2023 12:42 WG2129196 4-Chlorotoluene ND 0.00100 1 09/09/2023 12:42 WG2129196 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 12:42 WG2129196 1,2-Dibromoethane ND 0.00100 1 09/09/2023 12:42 WG2129196 Dibromomethane ND 0.00100 1 09/09/2023 12:42 WG2129196 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 12:42 WG2129196 1,1-Dichloroethane ND 0.00100 1 09/09/2023 12:42 WG2129196 1,2-Dichloroethane ND 0.00100 1 09/09/2023 12:42 WG2129196 1,1-Dichloroethene ND 0.00100 1 09/13/2023 02:44 WG2131061 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 12:42 WG2129196 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 12:42 WG2129196 1,2-Dichloropropane ND 0.00100 1 09/09/2023 12:42 WG2129196 1,1-Dichloropropene ND 0.00100 1 09/09/2023 12:42 WG2129196 1,3-Dichloropropane ND 0.00100 1 09/09/2023 12:42 WG2129196 cis-1,3-Dichloropropene ND 0.00100 1 09/09/2023 12:42 WG2129196 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 12:42 WG2129196 2,2-Dichloropropane ND 0.00100 1 09/09/2023 12:42 WG2129196 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 47 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 47 of 82 SAMPLE RESULTS - 15 L1653392 MW-9 Collected date/time: 09/06/23 13:45 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 12:42 WG2129196 Ethylbenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 12:42 WG2129196 Isopropylbenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 p-Isopropyltoluene ND 0.00100 1 09/09/2023 12:42 WG2129196 2-Butanone (MEK)ND 0.0100 1 09/09/2023 12:42 WG2129196 Methylene Chloride ND 0.00500 1 09/09/2023 12:42 WG2129196 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 12:42 WG2129196 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 12:42 WG2129196 Naphthalene ND 0.00500 1 09/09/2023 12:42 WG2129196 n-Propylbenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 Styrene ND 0.00100 1 09/09/2023 12:42 WG2129196 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 12:42 WG2129196 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 12:42 WG2129196 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 12:42 WG2129196 Tetrachloroethene ND 0.00100 1 09/09/2023 12:42 WG2129196 Toluene ND 0.00100 1 09/09/2023 12:42 WG2129196 1,2,3-Trichlorobenzene ND J4 0.00100 1 09/09/2023 12:42 WG2129196 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 12:42 WG2129196 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 12:42 WG2129196 Trichloroethene ND 0.00100 1 09/09/2023 12:42 WG2129196 Trichlorofluoromethane ND 0.00500 1 09/09/2023 12:42 WG2129196 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 12:42 WG2129196 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 Vinyl chloride ND 0.00100 1 09/09/2023 12:42 WG2129196 Xylenes, Total ND 0.00300 1 09/09/2023 12:42 WG2129196 (S) Toluene-d8 106 80.0-120 09/09/2023 12:42 WG2129196 (S) Toluene-d8 112 80.0-120 09/13/2023 02:44 WG2131061 (S) 4-Bromofluorobenzene 107 77.0-126 09/09/2023 12:42 WG2129196 (S) 4-Bromofluorobenzene 105 77.0-126 09/13/2023 02:44 WG2131061 (S) 1,2-Dichloroethane-d4 106 70.0-130 09/09/2023 12:42 WG2129196 (S) 1,2-Dichloroethane-d4 103 70.0-130 09/13/2023 02:44 WG2131061 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane ND 0.000424 1.06 09/14/2023 15:11 WG2130709 (S) Nitrobenzene-d5 35.6 10.0-120 09/14/2023 15:11 WG2130709 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 48 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 48 of 82 QUALITY CONTROL SUMMARYWG2129689 Mercury by Method 7470A L1653392-01 Method Blank (MB) (MB) R3971547-1 09/11/23 10:38 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Mercury,Dissolved U 0.000100 0.000200 Laboratory Control Sample (LCS) (LCS) R3971547-2 09/11/23 10:40 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Mercury,Dissolved 0.00300 0.00269 89.7 80.0-120 L1653365-07 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653365-07 09/11/23 10:43 • (MS) R3971547-3 09/11/23 10:45 • (MSD) R3971547-4 09/11/23 10:47 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Mercury,Dissolved 0.00300 ND 0.00208 0.00222 69.3 74.0 1 75.0-125 J6 J6 6.58 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 49 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 49 of 82 QUALITY CONTROL SUMMARYWG2129690 Mercury by Method 7470A L1653392-02,03,04,05,06,07,08,09,10,11,12,13,14,15 Method Blank (MB) (MB) R3972572-1 09/13/23 13:03 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Mercury,Dissolved U 0.000100 0.000200 Laboratory Control Sample (LCS) (LCS) R3972572-2 09/13/23 13:10 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Mercury,Dissolved 0.00300 0.00287 95.6 80.0-120 L1653443-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653443-05 09/13/23 13:12 • (MS) R3972572-3 09/13/23 13:15 • (MSD) R3972572-4 09/13/23 13:17 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Mercury,Dissolved 0.00300 ND 0.00266 0.00268 88.8 89.3 1 75.0-125 0.596 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 50 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 50 of 82 QUALITY CONTROL SUMMARYWG2128429 Metals (ICP) by Method 6010B L1653392-01,02,03,04,05,06,07,08,09,10,11,12,13,14,15 Method Blank (MB) (MB) R3971235-1 09/08/23 20:00 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Arsenic,Dissolved U 0.00440 0.0100 Barium,Dissolved U 0.000736 0.00500 Cadmium,Dissolved U 0.000479 0.00200 Chromium,Dissolved U 0.00140 0.0100 Iron,Dissolved 0.0195 J 0.0180 0.100 Lead,Dissolved U 0.00299 0.00600 Manganese,Dissolved U 0.000934 0.0100 Selenium,Dissolved U 0.00735 0.0100 Silver,Dissolved U 0.00154 0.00500 Laboratory Control Sample (LCS) (LCS) R3971235-2 09/08/23 20:03 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Arsenic,Dissolved 1.00 1.01 101 80.0-120 Barium,Dissolved 1.00 1.02 102 80.0-120 Cadmium,Dissolved 1.00 0.991 99.1 80.0-120 Chromium,Dissolved 1.00 0.998 99.8 80.0-120 Iron,Dissolved 10.0 9.92 99.2 80.0-120 Lead,Dissolved 1.00 0.992 99.2 80.0-120 Manganese,Dissolved 1.00 0.983 98.3 80.0-120 Selenium,Dissolved 1.00 0.976 97.6 80.0-120 Silver,Dissolved 0.200 0.200 99.9 80.0-120 L1653392-06 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653392-06 09/08/23 20:06 • (MS) R3971235-4 09/08/23 20:11 • (MSD) R3971235-5 09/08/23 20:14 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Arsenic,Dissolved 1.00 0.301 1.32 1.32 102 102 1 75.0-125 0.142 20 Barium,Dissolved 1.00 0.0704 1.04 1.05 97.1 98.4 1 75.0-125 1.18 20 Cadmium,Dissolved 1.00 ND 0.979 0.990 97.9 99.0 1 75.0-125 1.13 20 Chromium,Dissolved 1.00 ND 0.961 0.977 96.1 97.7 1 75.0-125 1.62 20 Iron,Dissolved 10.0 0.182 9.72 9.83 95.4 96.5 1 75.0-125 1.09 20 Lead,Dissolved 1.00 0.00773 0.990 1.00 98.2 99.2 1 75.0-125 1.00 20 Manganese,Dissolved 1.00 ND 0.940 0.955 93.4 94.9 1 75.0-125 1.56 20 Selenium,Dissolved 1.00 ND 1.01 1.02 101 102 1 75.0-125 0.848 20 Silver,Dissolved 0.200 ND 0.201 0.203 101 102 1 75.0-125 1.07 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 51 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 51 of 82 QUALITY CONTROL SUMMARYWG2129193 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-01,02,03,04,05,06,07,08 Method Blank (MB) (MB) R3972793-3 09/08/23 23:27 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acetone U 0.0113 0.0500 Acrolein U 0.00254 0.0500 Acrylonitrile U 0.000671 0.0100 Benzene U 0.0000941 0.00100 Bromobenzene U 0.000118 0.00100 Bromodichloromethane U 0.000136 0.00100 Bromoform U 0.000129 0.00100 Bromomethane U 0.000605 0.00500 n-Butylbenzene U 0.000157 0.00100 sec-Butylbenzene U 0.000125 0.00100 tert-Butylbenzene U 0.000127 0.00100 Carbon tetrachloride U 0.000128 0.00100 Chlorobenzene U 0.000116 0.00100 Chlorodibromomethane U 0.000140 0.00100 Chloroethane U 0.000192 0.00500 Chloroform U 0.000111 0.00500 Chloromethane U 0.000960 0.00250 2-Chlorotoluene U 0.000106 0.00100 4-Chlorotoluene U 0.000114 0.00100 1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1,2-Dibromoethane U 0.000126 0.00100 Dibromomethane U 0.000122 0.00100 1,2-Dichlorobenzene U 0.000107 0.00100 1,3-Dichlorobenzene U 0.000110 0.00100 1,4-Dichlorobenzene U 0.000120 0.00100 Dichlorodifluoromethane U 0.000374 0.00500 1,1-Dichloroethane U 0.000100 0.00100 1,2-Dichloroethane U 0.0000819 0.00100 1,1-Dichloroethene U 0.000188 0.00100 cis-1,2-Dichloroethene U 0.000126 0.00100 trans-1,2-Dichloroethene U 0.000149 0.00100 1,2-Dichloropropane U 0.000149 0.00100 1,1-Dichloropropene U 0.000142 0.00100 1,3-Dichloropropane U 0.000110 0.00100 cis-1,3-Dichloropropene U 0.000111 0.00100 trans-1,3-Dichloropropene U 0.000118 0.00100 2,2-Dichloropropane U 0.000161 0.00100 Di-isopropyl ether U 0.000105 0.00100 Ethylbenzene U 0.000137 0.00100 Hexachloro-1,3-butadiene U 0.000337 0.00100 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 52 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 52 of 82 QUALITY CONTROL SUMMARYWG2129193 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-01,02,03,04,05,06,07,08 Method Blank (MB) (MB) R3972793-3 09/08/23 23:27 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Isopropylbenzene U 0.000105 0.00100 p-Isopropyltoluene U 0.000120 0.00100 2-Butanone (MEK)U 0.00119 0.0100 Methylene Chloride U 0.000430 0.00500 4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100 Methyl tert-butyl ether U 0.000101 0.00100 Naphthalene U 0.00100 0.00500 n-Propylbenzene U 0.0000993 0.00100 Styrene U 0.000118 0.00100 1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 Tetrachloroethene U 0.000300 0.00100 Toluene U 0.000278 0.00100 1,2,3-Trichlorobenzene U 0.000230 0.00100 1,2,4-Trichlorobenzene U 0.000481 0.00100 1,1,1-Trichloroethane U 0.000149 0.00100 1,1,2-Trichloroethane U 0.000158 0.00100 Trichloroethene U 0.000190 0.00100 Trichlorofluoromethane U 0.000160 0.00500 1,2,3-Trichloropropane U 0.000237 0.00250 1,2,4-Trimethylbenzene U 0.000322 0.00100 1,2,3-Trimethylbenzene U 0.000104 0.00100 1,3,5-Trimethylbenzene U 0.000104 0.00100 Vinyl chloride U 0.000234 0.00100 Xylenes, Total U 0.000174 0.00300 (S) Toluene-d8 119 80.0-120 (S) 4-Bromofluorobenzene 106 77.0-126 (S) 1,2-Dichloroethane-d4 105 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3972793-1 09/08/23 22:22 • (LCSD) R3972793-2 09/08/23 22:44 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Acetone 0.0250 0.0188 0.0176 75.2 70.4 19.0-160 6.59 27 Acrolein 0.0250 0.00836 0.00801 33.4 32.0 10.0-160 4.28 26 Acrylonitrile 0.0250 0.0158 0.0166 63.2 66.4 55.0-149 4.94 20 Benzene 0.00500 0.00442 0.00475 88.4 95.0 70.0-123 7.20 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 53 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 53 of 82 QUALITY CONTROL SUMMARYWG2129193 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-01,02,03,04,05,06,07,08 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3972793-1 09/08/23 22:22 • (LCSD) R3972793-2 09/08/23 22:44 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Bromobenzene 0.00500 0.00407 0.00445 81.4 89.0 73.0-121 8.92 20 Bromodichloromethane 0.00500 0.00391 0.00439 78.2 87.8 75.0-120 11.6 20 Bromoform 0.00500 0.00370 0.00412 74.0 82.4 68.0-132 10.7 20 Bromomethane 0.00500 0.00554 0.00566 111 113 10.0-160 2.14 25 n-Butylbenzene 0.00500 0.00395 0.00403 79.0 80.6 73.0-125 2.01 20 sec-Butylbenzene 0.00500 0.00442 0.00467 88.4 93.4 75.0-125 5.50 20 tert-Butylbenzene 0.00500 0.00421 0.00471 84.2 94.2 76.0-124 11.2 20 Carbon tetrachloride 0.00500 0.00431 0.00460 86.2 92.0 68.0-126 6.51 20 Chlorobenzene 0.00500 0.00478 0.00518 95.6 104 80.0-121 8.03 20 Chlorodibromomethane 0.00500 0.00416 0.00450 83.2 90.0 77.0-125 7.85 20 Chloroethane 0.00500 0.00549 0.00598 110 120 47.0-150 8.54 20 Chloroform 0.00500 0.00457 0.00490 91.4 98.0 73.0-120 6.97 20 Chloromethane 0.00500 0.00334 0.00353 66.8 70.6 41.0-142 5.53 20 2-Chlorotoluene 0.00500 0.00461 0.00485 92.2 97.0 76.0-123 5.07 20 4-Chlorotoluene 0.00500 0.00445 0.00457 89.0 91.4 75.0-122 2.66 20 1,2-Dibromo-3-Chloropropane 0.00500 0.00383 0.00385 76.6 77.0 58.0-134 0.521 20 1,2-Dibromoethane 0.00500 0.00422 0.00453 84.4 90.6 80.0-122 7.09 20 Dibromomethane 0.00500 0.00453 0.00485 90.6 97.0 80.0-120 6.82 20 1,2-Dichlorobenzene 0.00500 0.00414 0.00436 82.8 87.2 79.0-121 5.18 20 1,3-Dichlorobenzene 0.00500 0.00420 0.00479 84.0 95.8 79.0-120 13.1 20 1,4-Dichlorobenzene 0.00500 0.00436 0.00478 87.2 95.6 79.0-120 9.19 20 Dichlorodifluoromethane 0.00500 0.00432 0.00418 86.4 83.6 51.0-149 3.29 20 1,1-Dichloroethane 0.00500 0.00432 0.00473 86.4 94.6 70.0-126 9.06 20 1,2-Dichloroethane 0.00500 0.00496 0.00498 99.2 99.6 70.0-128 0.402 20 1,1-Dichloroethene 0.00500 0.00447 0.00457 89.4 91.4 71.0-124 2.21 20 cis-1,2-Dichloroethene 0.00500 0.00454 0.00454 90.8 90.8 73.0-120 0.000 20 trans-1,2-Dichloroethene 0.00500 0.00435 0.00475 87.0 95.0 73.0-120 8.79 20 1,2-Dichloropropane 0.00500 0.00421 0.00461 84.2 92.2 77.0-125 9.07 20 1,1-Dichloropropene 0.00500 0.00447 0.00463 89.4 92.6 74.0-126 3.52 20 1,3-Dichloropropane 0.00500 0.00442 0.00489 88.4 97.8 80.0-120 10.1 20 cis-1,3-Dichloropropene 0.00500 0.00393 0.00402 78.6 80.4 80.0-123 J4 2.26 20 trans-1,3-Dichloropropene 0.00500 0.00401 0.00412 80.2 82.4 78.0-124 2.71 20 2,2-Dichloropropane 0.00500 0.00346 0.00386 69.2 77.2 58.0-130 10.9 20 Di-isopropyl ether 0.00500 0.00298 0.00324 59.6 64.8 58.0-138 8.36 20 Ethylbenzene 0.00500 0.00465 0.00502 93.0 100 79.0-123 7.65 20 Hexachloro-1,3-butadiene 0.00500 0.00326 0.00368 65.2 73.6 54.0-138 12.1 20 Isopropylbenzene 0.00500 0.00468 0.00493 93.6 98.6 76.0-127 5.20 20 p-Isopropyltoluene 0.00500 0.00416 0.00470 83.2 94.0 76.0-125 12.2 20 2-Butanone (MEK)0.0250 0.0215 0.0222 86.0 88.8 44.0-160 3.20 20 Methylene Chloride 0.00500 0.00407 0.00456 81.4 91.2 67.0-120 11.4 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 54 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 54 of 82 QUALITY CONTROL SUMMARYWG2129193 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-01,02,03,04,05,06,07,08 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3972793-1 09/08/23 22:22 • (LCSD) R3972793-2 09/08/23 22:44 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 4-Methyl-2-pentanone (MIBK)0.0250 0.0175 0.0194 70.0 77.6 68.0-142 10.3 20 Methyl tert-butyl ether 0.00500 0.00412 0.00435 82.4 87.0 68.0-125 5.43 20 Naphthalene 0.00500 0.00455 0.00491 91.0 98.2 54.0-135 7.61 20 n-Propylbenzene 0.00500 0.00462 0.00487 92.4 97.4 77.0-124 5.27 20 Styrene 0.00500 0.00432 0.00477 86.4 95.4 73.0-130 9.90 20 1,1,1,2-Tetrachloroethane 0.00500 0.00425 0.00485 85.0 97.0 75.0-125 13.2 20 1,1,2,2-Tetrachloroethane 0.00500 0.00386 0.00409 77.2 81.8 65.0-130 5.79 20 1,1,2-Trichlorotrifluoroethane 0.00500 0.00474 0.00461 94.8 92.2 69.0-132 2.78 20 Tetrachloroethene 0.00500 0.00430 0.00494 86.0 98.8 72.0-132 13.9 20 Toluene 0.00500 0.00472 0.00526 94.4 105 79.0-120 10.8 20 1,2,3-Trichlorobenzene 0.00500 0.00402 0.00425 80.4 85.0 50.0-138 5.56 20 1,2,4-Trichlorobenzene 0.00500 0.00392 0.00426 78.4 85.2 57.0-137 8.31 20 1,1,1-Trichloroethane 0.00500 0.00444 0.00491 88.8 98.2 73.0-124 10.1 20 1,1,2-Trichloroethane 0.00500 0.00458 0.00484 91.6 96.8 80.0-120 5.52 20 Trichloroethene 0.00500 0.00483 0.00503 96.6 101 78.0-124 4.06 20 Trichlorofluoromethane 0.00500 0.00577 0.00564 115 113 59.0-147 2.28 20 1,2,3-Trichloropropane 0.00500 0.00447 0.00493 89.4 98.6 73.0-130 9.79 20 1,2,4-Trimethylbenzene 0.00500 0.00452 0.00478 90.4 95.6 76.0-121 5.59 20 1,2,3-Trimethylbenzene 0.00500 0.00426 0.00463 85.2 92.6 77.0-120 8.32 20 1,3,5-Trimethylbenzene 0.00500 0.00435 0.00462 87.0 92.4 76.0-122 6.02 20 Vinyl chloride 0.00500 0.00440 0.00467 88.0 93.4 67.0-131 5.95 20 Xylenes, Total 0.0150 0.0138 0.0148 92.0 98.7 79.0-123 6.99 20 (S) Toluene-d8 113 114 80.0-120 (S) 4-Bromofluorobenzene 103 102 77.0-126 (S) 1,2-Dichloroethane-d4 107 106 70.0-130 L1653365-07 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653365-07 09/09/23 03:49 • (MS) R3972793-4 09/09/23 08:29 • (MSD) R3972793-5 09/09/23 08:51 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Acetone 0.0250 ND ND ND 58.4 59.6 1 10.0-160 2.03 35 Acrolein 0.0250 ND ND ND 43.6 43.6 1 10.0-160 0.000 39 Acrylonitrile 0.0250 ND 0.0126 0.0157 50.4 62.8 1 21.0-160 21.9 32 Benzene 0.00500 ND 0.00498 0.00465 99.6 93.0 1 17.0-158 6.85 27 Bromobenzene 0.00500 ND 0.00448 0.00423 89.6 84.6 1 30.0-149 5.74 28 Bromodichloromethane 0.00500 ND 0.00447 0.00438 89.4 87.6 1 31.0-150 2.03 27 Bromoform 0.00500 ND 0.00384 0.00405 76.8 81.0 1 29.0-150 5.32 29 Bromomethane 0.00500 ND ND ND 82.4 91.0 1 10.0-160 9.92 38 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 55 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 55 of 82 QUALITY CONTROL SUMMARYWG2129193 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-01,02,03,04,05,06,07,08 L1653365-07 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653365-07 09/09/23 03:49 • (MS) R3972793-4 09/09/23 08:29 • (MSD) R3972793-5 09/09/23 08:51 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% n-Butylbenzene 0.00500 ND 0.00452 0.00424 90.4 84.8 1 31.0-150 6.39 30 sec-Butylbenzene 0.00500 ND 0.00456 0.00470 91.2 94.0 1 33.0-155 3.02 29 tert-Butylbenzene 0.00500 ND 0.00460 0.00450 92.0 90.0 1 34.0-153 2.20 28 Carbon tetrachloride 0.00500 ND 0.00523 0.00472 105 94.4 1 23.0-159 10.3 28 Chlorobenzene 0.00500 ND 0.00529 0.00530 106 106 1 33.0-152 0.189 27 Chlorodibromomethane 0.00500 ND 0.00439 0.00469 87.8 93.8 1 37.0-149 6.61 27 Chloroethane 0.00500 ND 0.00968 0.00894 194 179 1 10.0-160 J5 J5 7.95 30 Chloroform 0.00500 ND 0.00513 0.00506 103 101 1 29.0-154 1.37 28 Chloromethane 0.00500 ND 0.00378 0.00380 75.6 76.0 1 10.0-160 0.528 29 2-Chlorotoluene 0.00500 ND 0.00497 0.00487 99.4 97.4 1 32.0-153 2.03 28 4-Chlorotoluene 0.00500 ND 0.00452 0.00445 90.4 89.0 1 32.0-150 1.56 28 1,2-Dibromo-3-Chloropropane 0.00500 ND ND ND 78.6 82.6 1 22.0-151 4.96 34 1,2-Dibromoethane 0.00500 ND 0.00442 0.00459 88.4 91.8 1 34.0-147 3.77 27 Dibromomethane 0.00500 ND 0.00522 0.00517 104 103 1 30.0-151 0.962 27 1,2-Dichlorobenzene 0.00500 ND 0.00438 0.00445 87.6 89.0 1 34.0-149 1.59 28 1,3-Dichlorobenzene 0.00500 ND 0.00459 0.00471 91.8 94.2 1 36.0-146 2.58 27 1,4-Dichlorobenzene 0.00500 ND 0.00465 0.00463 93.0 92.6 1 35.0-142 0.431 27 Dichlorodifluoromethane 0.00500 ND ND ND 95.8 90.0 1 10.0-160 6.24 29 1,1-Dichloroethane 0.00500 ND 0.00494 0.00467 98.8 93.4 1 25.0-158 5.62 27 1,2-Dichloroethane 0.00500 ND 0.00533 0.00518 107 104 1 29.0-151 2.85 27 1,1-Dichloroethene 0.00500 ND 0.00510 0.00510 102 102 1 11.0-160 0.000 29 cis-1,2-Dichloroethene 0.00500 ND 0.00456 0.00503 91.2 101 1 10.0-160 9.80 27 trans-1,2-Dichloroethene 0.00500 ND 0.00478 0.00481 95.6 96.2 1 17.0-153 0.626 27 1,2-Dichloropropane 0.00500 ND 0.00415 0.00440 83.0 88.0 1 30.0-156 5.85 27 1,1-Dichloropropene 0.00500 ND 0.00520 0.00510 104 102 1 25.0-158 1.94 27 1,3-Dichloropropane 0.00500 ND 0.00486 0.00484 97.2 96.8 1 38.0-147 0.412 27 cis-1,3-Dichloropropene 0.00500 ND 0.00382 0.00393 76.4 78.6 1 34.0-149 2.84 28 trans-1,3-Dichloropropene 0.00500 ND 0.00400 0.00409 80.0 81.8 1 32.0-149 2.22 28 2,2-Dichloropropane 0.00500 ND 0.00465 0.00458 93.0 91.6 1 24.0-152 1.52 29 Di-isopropyl ether 0.00500 ND 0.00327 0.00313 65.4 62.6 1 21.0-160 4.37 28 Ethylbenzene 0.00500 ND 0.00493 0.00504 98.6 101 1 30.0-155 2.21 27 Hexachloro-1,3-butadiene 0.00500 ND 0.00384 0.00399 76.8 79.8 1 20.0-154 3.83 34 Isopropylbenzene 0.00500 ND 0.00481 0.00507 96.2 101 1 28.0-157 5.26 27 p-Isopropyltoluene 0.00500 ND 0.00448 0.00454 89.6 90.8 1 30.0-154 1.33 29 2-Butanone (MEK)0.0250 ND 0.0208 0.0214 83.2 85.6 1 10.0-160 2.84 32 Methylene Chloride 0.00500 ND ND ND 94.2 89.6 1 23.0-144 5.01 28 4-Methyl-2-pentanone (MIBK)0.0250 ND 0.0178 0.0186 71.2 74.4 1 29.0-160 4.40 29 Methyl tert-butyl ether 0.00500 ND 0.00438 0.00439 87.6 87.8 1 28.0-150 0.228 29 Naphthalene 0.00500 ND ND ND 90.0 96.0 1 12.0-156 6.45 35 n-Propylbenzene 0.00500 ND 0.00489 0.00486 97.8 97.2 1 31.0-154 0.615 28 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 56 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 56 of 82 QUALITY CONTROL SUMMARYWG2129193 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-01,02,03,04,05,06,07,08 L1653365-07 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653365-07 09/09/23 03:49 • (MS) R3972793-4 09/09/23 08:29 • (MSD) R3972793-5 09/09/23 08:51 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Styrene 0.00500 ND 0.00429 0.00456 85.8 91.2 1 33.0-155 6.10 28 1,1,1,2-Tetrachloroethane 0.00500 ND 0.00463 0.00485 92.6 97.0 1 36.0-151 4.64 29 1,1,2,2-Tetrachloroethane 0.00500 ND 0.00456 0.00459 91.2 91.8 1 33.0-150 0.656 28 1,1,2-Trichlorotrifluoroethane 0.00500 ND 0.00559 0.00532 112 106 1 23.0-160 4.95 30 Tetrachloroethene 0.00500 ND 0.00498 0.00493 99.6 98.6 1 10.0-160 1.01 27 Toluene 0.00500 ND 0.00530 0.00522 106 104 1 26.0-154 1.52 28 1,2,3-Trichlorobenzene 0.00500 ND 0.00407 0.00425 81.4 85.0 1 17.0-150 4.33 36 1,2,4-Trichlorobenzene 0.00500 ND 0.00447 0.00429 89.4 85.8 1 24.0-150 4.11 33 1,1,1-Trichloroethane 0.00500 ND 0.00538 0.00519 108 104 1 23.0-160 3.60 28 1,1,2-Trichloroethane 0.00500 ND 0.00496 0.00516 99.2 103 1 35.0-147 3.95 27 Trichloroethene 0.00500 ND 0.00487 0.00483 97.4 96.6 1 10.0-160 0.825 25 Trichlorofluoromethane 0.00500 ND 0.00650 0.00636 130 127 1 17.0-160 2.18 31 1,2,3-Trichloropropane 0.00500 ND 0.00475 0.00488 95.0 97.6 1 34.0-151 2.70 29 1,2,4-Trimethylbenzene 0.00500 ND 0.00453 0.00453 90.6 90.6 1 26.0-154 0.000 27 1,2,3-Trimethylbenzene 0.00500 ND 0.00440 0.00457 88.0 91.4 1 32.0-149 3.79 28 1,3,5-Trimethylbenzene 0.00500 ND 0.00477 0.00465 95.4 93.0 1 28.0-153 2.55 27 Vinyl chloride 0.00500 ND 0.00496 0.00512 99.2 102 1 10.0-160 3.17 27 Xylenes, Total 0.0150 ND 0.0148 0.0147 98.7 98.0 1 29.0-154 0.678 28 (S) Toluene-d8 110 113 80.0-120 (S) 4-Bromofluorobenzene 102 101 77.0-126 (S) 1,2-Dichloroethane-d4 108 111 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 57 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 57 of 82 QUALITY CONTROL SUMMARYWG2129196 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-09,10,11,12,13,14,15 Method Blank (MB) (MB) R3972210-3 09/09/23 09:41 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acetone U 0.0113 0.0500 Acrolein U 0.00254 0.0500 Acrylonitrile U 0.000671 0.0100 Benzene U 0.0000941 0.00100 Bromobenzene U 0.000118 0.00100 Bromodichloromethane U 0.000136 0.00100 Bromoform U 0.000129 0.00100 Bromomethane U 0.000605 0.00500 n-Butylbenzene U 0.000157 0.00100 sec-Butylbenzene U 0.000125 0.00100 tert-Butylbenzene U 0.000127 0.00100 Carbon tetrachloride U 0.000128 0.00100 Chlorobenzene U 0.000116 0.00100 Chlorodibromomethane U 0.000140 0.00100 Chloroethane U 0.000192 0.00500 Chloroform U 0.000111 0.00500 Chloromethane U 0.000960 0.00250 2-Chlorotoluene U 0.000106 0.00100 4-Chlorotoluene U 0.000114 0.00100 1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1,2-Dibromoethane U 0.000126 0.00100 Dibromomethane U 0.000122 0.00100 1,2-Dichlorobenzene U 0.000107 0.00100 1,3-Dichlorobenzene U 0.000110 0.00100 1,4-Dichlorobenzene U 0.000120 0.00100 Dichlorodifluoromethane U 0.000374 0.00500 1,1-Dichloroethane U 0.000100 0.00100 1,2-Dichloroethane U 0.0000819 0.00100 1,1-Dichloroethene U 0.000188 0.00100 cis-1,2-Dichloroethene U 0.000126 0.00100 trans-1,2-Dichloroethene U 0.000149 0.00100 1,2-Dichloropropane U 0.000149 0.00100 1,1-Dichloropropene U 0.000142 0.00100 1,3-Dichloropropane U 0.000110 0.00100 cis-1,3-Dichloropropene U 0.000111 0.00100 trans-1,3-Dichloropropene U 0.000118 0.00100 2,2-Dichloropropane U 0.000161 0.00100 Di-isopropyl ether U 0.000105 0.00100 Ethylbenzene U 0.000137 0.00100 Hexachloro-1,3-butadiene U 0.000337 0.00100 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 58 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 58 of 82 QUALITY CONTROL SUMMARYWG2129196 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-09,10,11,12,13,14,15 Method Blank (MB) (MB) R3972210-3 09/09/23 09:41 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Isopropylbenzene U 0.000105 0.00100 p-Isopropyltoluene U 0.000120 0.00100 2-Butanone (MEK)U 0.00119 0.0100 Methylene Chloride U 0.000430 0.00500 4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100 Methyl tert-butyl ether U 0.000101 0.00100 Naphthalene U 0.00100 0.00500 n-Propylbenzene U 0.0000993 0.00100 Styrene U 0.000118 0.00100 1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 Tetrachloroethene U 0.000300 0.00100 Toluene U 0.000278 0.00100 1,2,3-Trichlorobenzene U 0.000230 0.00100 1,2,4-Trichlorobenzene U 0.000481 0.00100 1,1,1-Trichloroethane U 0.000149 0.00100 1,1,2-Trichloroethane U 0.000158 0.00100 Trichloroethene U 0.000190 0.00100 Trichlorofluoromethane U 0.000160 0.00500 1,2,3-Trichloropropane U 0.000237 0.00250 1,2,4-Trimethylbenzene U 0.000322 0.00100 1,2,3-Trimethylbenzene U 0.000104 0.00100 1,3,5-Trimethylbenzene U 0.000104 0.00100 Vinyl chloride U 0.000234 0.00100 Xylenes, Total U 0.000174 0.00300 (S) Toluene-d8 109 80.0-120 (S) 4-Bromofluorobenzene 103 77.0-126 (S) 1,2-Dichloroethane-d4 104 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3972210-1 09/09/23 08:39 • (LCSD) R3972210-2 09/09/23 09:00 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Acetone 0.0250 0.0362 0.0371 145 148 19.0-160 2.46 27 Acrolein 0.0250 0.0307 0.0296 123 118 10.0-160 3.65 26 Acrylonitrile 0.0250 0.0299 0.0305 120 122 55.0-149 1.99 20 Benzene 0.00500 0.00554 0.00529 111 106 70.0-123 4.62 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 59 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 59 of 82 QUALITY CONTROL SUMMARYWG2129196 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-09,10,11,12,13,14,15 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3972210-1 09/09/23 08:39 • (LCSD) R3972210-2 09/09/23 09:00 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Bromobenzene 0.00500 0.00528 0.00562 106 112 73.0-121 6.24 20 Bromodichloromethane 0.00500 0.00522 0.00518 104 104 75.0-120 0.769 20 Bromoform 0.00500 0.00387 0.00432 77.4 86.4 68.0-132 11.0 20 Bromomethane 0.00500 0.00138 0.00144 27.6 28.8 10.0-160 4.26 25 n-Butylbenzene 0.00500 0.00560 0.00465 112 93.0 73.0-125 18.5 20 sec-Butylbenzene 0.00500 0.00527 0.00530 105 106 75.0-125 0.568 20 tert-Butylbenzene 0.00500 0.00562 0.00529 112 106 76.0-124 6.05 20 Carbon tetrachloride 0.00500 0.00540 0.00509 108 102 68.0-126 5.91 20 Chlorobenzene 0.00500 0.00516 0.00489 103 97.8 80.0-121 5.37 20 Chlorodibromomethane 0.00500 0.00490 0.00489 98.0 97.8 77.0-125 0.204 20 Chloroethane 0.00500 0.00399 0.00379 79.8 75.8 47.0-150 5.14 20 Chloroform 0.00500 0.00560 0.00537 112 107 73.0-120 4.19 20 Chloromethane 0.00500 0.00565 0.00551 113 110 41.0-142 2.51 20 2-Chlorotoluene 0.00500 0.00541 0.00547 108 109 76.0-123 1.10 20 4-Chlorotoluene 0.00500 0.00587 0.00542 117 108 75.0-122 7.97 20 1,2-Dibromo-3-Chloropropane 0.00500 0.00330 0.00338 66.0 67.6 58.0-134 2.40 20 1,2-Dibromoethane 0.00500 0.00514 0.00490 103 98.0 80.0-122 4.78 20 Dibromomethane 0.00500 0.00498 0.00489 99.6 97.8 80.0-120 1.82 20 1,2-Dichlorobenzene 0.00500 0.00506 0.00515 101 103 79.0-121 1.76 20 1,3-Dichlorobenzene 0.00500 0.00519 0.00505 104 101 79.0-120 2.73 20 1,4-Dichlorobenzene 0.00500 0.00503 0.00500 101 100 79.0-120 0.598 20 Dichlorodifluoromethane 0.00500 0.00554 0.00518 111 104 51.0-149 6.72 20 1,1-Dichloroethane 0.00500 0.00579 0.00568 116 114 70.0-126 1.92 20 1,2-Dichloroethane 0.00500 0.00518 0.00522 104 104 70.0-128 0.769 20 1,1-Dichloroethene 0.00500 0.00532 0.00504 106 101 71.0-124 5.41 20 cis-1,2-Dichloroethene 0.00500 0.00528 0.00502 106 100 73.0-120 5.05 20 trans-1,2-Dichloroethene 0.00500 0.00554 0.00532 111 106 73.0-120 4.05 20 1,2-Dichloropropane 0.00500 0.00577 0.00553 115 111 77.0-125 4.25 20 1,1-Dichloropropene 0.00500 0.00537 0.00529 107 106 74.0-126 1.50 20 1,3-Dichloropropane 0.00500 0.00540 0.00534 108 107 80.0-120 1.12 20 cis-1,3-Dichloropropene 0.00500 0.00531 0.00537 106 107 80.0-123 1.12 20 trans-1,3-Dichloropropene 0.00500 0.00477 0.00452 95.4 90.4 78.0-124 5.38 20 2,2-Dichloropropane 0.00500 0.00579 0.00510 116 102 58.0-130 12.7 20 Di-isopropyl ether 0.00500 0.00617 0.00612 123 122 58.0-138 0.814 20 Ethylbenzene 0.00500 0.00508 0.00486 102 97.2 79.0-123 4.43 20 Hexachloro-1,3-butadiene 0.00500 0.00558 0.00506 112 101 54.0-138 9.77 20 Isopropylbenzene 0.00500 0.00472 0.00460 94.4 92.0 76.0-127 2.58 20 p-Isopropyltoluene 0.00500 0.00555 0.00504 111 101 76.0-125 9.63 20 2-Butanone (MEK)0.0250 0.0283 0.0286 113 114 44.0-160 1.05 20 Methylene Chloride 0.00500 0.00563 0.00555 113 111 67.0-120 1.43 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 60 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 60 of 82 QUALITY CONTROL SUMMARYWG2129196 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-09,10,11,12,13,14,15 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3972210-1 09/09/23 08:39 • (LCSD) R3972210-2 09/09/23 09:00 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 4-Methyl-2-pentanone (MIBK)0.0250 0.0277 0.0280 111 112 68.0-142 1.08 20 Methyl tert-butyl ether 0.00500 0.00564 0.00559 113 112 68.0-125 0.890 20 Naphthalene 0.00500 0.00274 0.00309 54.8 61.8 54.0-135 12.0 20 n-Propylbenzene 0.00500 0.00517 0.00546 103 109 77.0-124 5.46 20 Styrene 0.00500 0.00431 0.00465 86.2 93.0 73.0-130 7.59 20 1,1,1,2-Tetrachloroethane 0.00500 0.00549 0.00515 110 103 75.0-125 6.39 20 1,1,2,2-Tetrachloroethane 0.00500 0.00515 0.00543 103 109 65.0-130 5.29 20 1,1,2-Trichlorotrifluoroethane 0.00500 0.00558 0.00522 112 104 69.0-132 6.67 20 Tetrachloroethene 0.00500 0.00500 0.00465 100 93.0 72.0-132 7.25 20 Toluene 0.00500 0.00543 0.00510 109 102 79.0-120 6.27 20 1,2,3-Trichlorobenzene 0.00500 0.00190 0.00210 38.0 42.0 50.0-138 J4 J4 10.0 20 1,2,4-Trichlorobenzene 0.00500 0.00306 0.00341 61.2 68.2 57.0-137 10.8 20 1,1,1-Trichloroethane 0.00500 0.00540 0.00506 108 101 73.0-124 6.50 20 1,1,2-Trichloroethane 0.00500 0.00520 0.00532 104 106 80.0-120 2.28 20 Trichloroethene 0.00500 0.00491 0.00485 98.2 97.0 78.0-124 1.23 20 Trichlorofluoromethane 0.00500 0.00512 0.00510 102 102 59.0-147 0.391 20 1,2,3-Trichloropropane 0.00500 0.00534 0.00543 107 109 73.0-130 1.67 20 1,2,4-Trimethylbenzene 0.00500 0.00536 0.00512 107 102 76.0-121 4.58 20 1,2,3-Trimethylbenzene 0.00500 0.00524 0.00527 105 105 77.0-120 0.571 20 1,3,5-Trimethylbenzene 0.00500 0.00535 0.00550 107 110 76.0-122 2.76 20 Vinyl chloride 0.00500 0.00437 0.00413 87.4 82.6 67.0-131 5.65 20 Xylenes, Total 0.0150 0.0156 0.0143 104 95.3 79.0-123 8.70 20 (S) Toluene-d8 105 102 80.0-120 (S) 4-Bromofluorobenzene 97.4 101 77.0-126 (S) 1,2-Dichloroethane-d4 105 108 70.0-130 L1653443-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653443-05 09/09/23 14:24 • (MS) R3972210-4 09/09/23 17:09 • (MSD) R3972210-5 09/09/23 17:29 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Acetone 0.0250 ND ND ND 140 146 1 10.0-160 4.48 35 Acrolein 0.0250 ND ND ND 80.4 88.4 1 10.0-160 9.48 39 Acrylonitrile 0.0250 ND 0.0328 0.0330 131 132 1 21.0-160 0.608 32 Benzene 0.00500 ND 0.00594 0.00569 119 114 1 17.0-158 4.30 27 Bromobenzene 0.00500 ND 0.00490 0.00560 98.0 112 1 30.0-149 13.3 28 Bromodichloromethane 0.00500 ND 0.00550 0.00559 110 112 1 31.0-150 1.62 27 Bromoform 0.00500 ND 0.00472 0.00475 94.4 95.0 1 29.0-150 0.634 29 Bromomethane 0.00500 ND ND ND 24.8 30.4 1 10.0-160 20.3 38 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 61 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 61 of 82 QUALITY CONTROL SUMMARYWG2129196 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-09,10,11,12,13,14,15 L1653443-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653443-05 09/09/23 14:24 • (MS) R3972210-4 09/09/23 17:09 • (MSD) R3972210-5 09/09/23 17:29 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% n-Butylbenzene 0.00500 ND 0.00501 0.00489 100 97.8 1 31.0-150 2.42 30 sec-Butylbenzene 0.00500 ND 0.00533 0.00554 107 111 1 33.0-155 3.86 29 tert-Butylbenzene 0.00500 ND 0.00544 0.00558 109 112 1 34.0-153 2.54 28 Carbon tetrachloride 0.00500 ND 0.00588 0.00576 118 115 1 23.0-159 2.06 28 Chlorobenzene 0.00500 ND 0.00528 0.00555 106 111 1 33.0-152 4.99 27 Chlorodibromomethane 0.00500 ND 0.00507 0.00525 101 105 1 37.0-149 3.49 27 Chloroethane 0.00500 ND ND ND 82.2 86.0 1 10.0-160 4.52 30 Chloroform 0.00500 ND 0.00581 0.00566 116 113 1 29.0-154 2.62 28 Chloromethane 0.00500 ND 0.00644 0.00643 129 129 1 10.0-160 0.155 29 2-Chlorotoluene 0.00500 ND 0.00545 0.00578 109 116 1 32.0-153 5.88 28 4-Chlorotoluene 0.00500 ND 0.00559 0.00581 112 116 1 32.0-150 3.86 28 1,2-Dibromo-3-Chloropropane 0.00500 ND ND ND 75.6 76.2 1 22.0-151 0.791 34 1,2-Dibromoethane 0.00500 ND 0.00537 0.00560 107 112 1 34.0-147 4.19 27 Dibromomethane 0.00500 ND 0.00542 0.00536 108 107 1 30.0-151 1.11 27 1,2-Dichlorobenzene 0.00500 ND 0.00502 0.00511 100 102 1 34.0-149 1.78 28 1,3-Dichlorobenzene 0.00500 ND 0.00519 0.00538 104 108 1 36.0-146 3.60 27 1,4-Dichlorobenzene 0.00500 ND 0.00508 0.00528 102 106 1 35.0-142 3.86 27 Dichlorodifluoromethane 0.00500 ND 0.00609 0.00592 122 118 1 10.0-160 2.83 29 1,1-Dichloroethane 0.00500 ND 0.00604 0.00617 121 123 1 25.0-158 2.13 27 1,2-Dichloroethane 0.00500 ND 0.00555 0.00538 111 108 1 29.0-151 3.11 27 1,1-Dichloroethene 0.00500 ND 0.00578 0.00580 116 116 1 11.0-160 0.345 29 cis-1,2-Dichloroethene 0.00500 ND 0.00515 0.00561 103 112 1 10.0-160 8.55 27 trans-1,2-Dichloroethene 0.00500 ND 0.00586 0.00572 117 114 1 17.0-153 2.42 27 1,2-Dichloropropane 0.00500 ND 0.00588 0.00571 118 114 1 30.0-156 2.93 27 1,1-Dichloropropene 0.00500 ND 0.00601 0.00585 120 117 1 25.0-158 2.70 27 1,3-Dichloropropane 0.00500 ND 0.00567 0.00561 113 112 1 38.0-147 1.06 27 cis-1,3-Dichloropropene 0.00500 ND 0.00509 0.00517 102 103 1 34.0-149 1.56 28 trans-1,3-Dichloropropene 0.00500 ND 0.00449 0.00482 89.8 96.4 1 32.0-149 7.09 28 2,2-Dichloropropane 0.00500 ND 0.00547 0.00531 109 106 1 24.0-152 2.97 29 Di-isopropyl ether 0.00500 ND 0.00656 0.00644 131 129 1 21.0-160 1.85 28 Ethylbenzene 0.00500 ND 0.00528 0.00544 106 109 1 30.0-155 2.99 27 Hexachloro-1,3-butadiene 0.00500 ND 0.00482 0.00457 96.4 91.4 1 20.0-154 5.32 34 Isopropylbenzene 0.00500 ND 0.00435 0.00531 87.0 106 1 28.0-157 19.9 27 p-Isopropyltoluene 0.00500 ND 0.00521 0.00523 104 105 1 30.0-154 0.383 29 2-Butanone (MEK)0.0250 ND 0.0316 0.0303 126 121 1 10.0-160 4.20 32 Methylene Chloride 0.00500 ND 0.00570 0.00566 114 113 1 23.0-144 0.704 28 4-Methyl-2-pentanone (MIBK)0.0250 ND 0.0328 0.0332 131 133 1 29.0-160 1.21 29 Methyl tert-butyl ether 0.00500 ND 0.00587 0.00589 117 118 1 28.0-150 0.340 29 Naphthalene 0.00500 ND ND ND 71.2 70.8 1 12.0-156 0.563 35 n-Propylbenzene 0.00500 ND 0.00506 0.00568 101 114 1 31.0-154 11.5 28 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 62 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 62 of 82 QUALITY CONTROL SUMMARYWG2129196 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-09,10,11,12,13,14,15 L1653443-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653443-05 09/09/23 14:24 • (MS) R3972210-4 09/09/23 17:09 • (MSD) R3972210-5 09/09/23 17:29 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Styrene 0.00500 ND 0.00415 0.00501 83.0 100 1 33.0-155 18.8 28 1,1,1,2-Tetrachloroethane 0.00500 ND 0.00545 0.00562 109 112 1 36.0-151 3.07 29 1,1,2,2-Tetrachloroethane 0.00500 ND 0.00516 0.00612 103 122 1 33.0-150 17.0 28 1,1,2-Trichlorotrifluoroethane 0.00500 ND 0.00575 0.00545 115 109 1 23.0-160 5.36 30 Tetrachloroethene 0.00500 ND 0.00539 0.00519 108 104 1 10.0-160 3.78 27 Toluene 0.00500 ND 0.00549 0.00558 110 112 1 26.0-154 1.63 28 1,2,3-Trichlorobenzene 0.00500 ND 0.00253 0.00281 50.6 56.2 1 17.0-150 10.5 36 1,2,4-Trichlorobenzene 0.00500 ND 0.00379 0.00394 75.8 78.8 1 24.0-150 3.88 33 1,1,1-Trichloroethane 0.00500 ND 0.00571 0.00555 114 111 1 23.0-160 2.84 28 1,1,2-Trichloroethane 0.00500 ND 0.00550 0.00576 110 115 1 35.0-147 4.62 27 Trichloroethene 0.00500 ND 0.00536 0.00516 107 103 1 10.0-160 3.80 25 Trichlorofluoromethane 0.00500 ND 0.00565 0.00571 113 114 1 17.0-160 1.06 31 1,2,3-Trichloropropane 0.00500 ND 0.00588 0.00598 118 120 1 34.0-151 1.69 29 1,2,4-Trimethylbenzene 0.00500 ND 0.00506 0.00554 101 111 1 26.0-154 9.06 27 1,2,3-Trimethylbenzene 0.00500 ND 0.00520 0.00564 104 113 1 32.0-149 8.12 28 1,3,5-Trimethylbenzene 0.00500 ND 0.00528 0.00575 106 115 1 28.0-153 8.52 27 Vinyl chloride 0.00500 ND 0.00505 0.00497 101 99.4 1 10.0-160 1.60 27 Xylenes, Total 0.0150 ND 0.0157 0.0159 105 106 1 29.0-154 1.27 28 (S) Toluene-d8 104 105 80.0-120 (S) 4-Bromofluorobenzene 88.6 104 77.0-126 (S) 1,2-Dichloroethane-d4 109 105 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 63 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 63 of 82 QUALITY CONTROL SUMMARYWG2131061 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-12,13,14,15 Method Blank (MB) (MB) R3972470-3 09/12/23 21:40 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,1-Dichloroethane U 0.000100 0.00100 1,1-Dichloroethene U 0.000188 0.00100 (S) Toluene-d8 113 80.0-120 (S) 4-Bromofluorobenzene 102 77.0-126 (S) 1,2-Dichloroethane-d4 109 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3972470-1 09/12/23 20:13 • (LCSD) R3972470-2 09/12/23 20:35 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 1,1-Dichloroethane 0.00500 0.00452 0.00437 90.4 87.4 70.0-126 3.37 20 1,1-Dichloroethene 0.00500 0.00469 0.00432 93.8 86.4 71.0-124 8.21 20 (S) Toluene-d8 112 110 80.0-120 (S) 4-Bromofluorobenzene 104 103 77.0-126 (S) 1,2-Dichloroethane-d4 110 110 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 64 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 64 of 82 QUALITY CONTROL SUMMARYWG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1653392-01,02,03,04,05,06,07,08 Method Blank (MB) (MB) R3971953-2 09/12/23 03:29 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acenaphthene U 0.0000886 0.00100 Acenaphthylene U 0.0000921 0.00100 Anthracene U 0.0000804 0.00100 Benzidine U 0.00374 0.0100 Benzo(a)anthracene U 0.000199 0.00100 Benzo(b)fluoranthene U 0.000130 0.00100 Benzo(k)fluoranthene U 0.000120 0.00100 Benzo(g,h,i)perylene U 0.000121 0.00100 Benzo(a)pyrene U 0.0000381 0.00100 Bis(2-chlorethoxy)methane U 0.000116 0.0100 Bis(2-chloroethyl)ether U 0.000137 0.0100 2,2-Oxybis(1-Chloropropane)U 0.000210 0.0100 4-Bromophenyl-phenylether U 0.0000877 0.0100 2-Chloronaphthalene U 0.0000648 0.00100 4-Chlorophenyl-phenylether U 0.0000926 0.0100 Chrysene U 0.000130 0.00100 Dibenz(a,h)anthracene U 0.0000644 0.00100 1,2-Dichlorobenzene U 0.0000713 0.0100 1,3-Dichlorobenzene U 0.000132 0.0100 1,4-Dichlorobenzene U 0.0000942 0.0100 3,3-Dichlorobenzidine U 0.000212 0.0100 2,4-Dinitrotoluene U 0.0000983 0.0100 2,6-Dinitrotoluene U 0.000250 0.0100 Fluoranthene U 0.000102 0.00100 Fluorene U 0.0000844 0.00100 Hexachlorobenzene U 0.0000755 0.00100 Hexachloro-1,3-butadiene U 0.0000968 0.0100 Hexachlorocyclopentadiene U 0.0000598 0.0100 Hexachloroethane U 0.000127 0.0100 Indeno(1,2,3-cd)pyrene U 0.000279 0.00100 Isophorone U 0.000143 0.0100 Naphthalene U 0.000159 0.00100 Nitrobenzene U 0.000297 0.0100 n-Nitrosodimethylamine U 0.000998 0.0100 n-Nitrosodiphenylamine U 0.00237 0.0100 n-Nitrosodi-n-propylamine U 0.000261 0.0100 Phenanthrene U 0.000112 0.00100 Benzylbutyl phthalate U 0.000765 0.00300 Bis(2-ethylhexyl)phthalate 0.00165 J 0.000895 0.00300 Di-n-butyl phthalate U 0.000453 0.00300 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 65 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 65 of 82 QUALITY CONTROL SUMMARYWG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1653392-01,02,03,04,05,06,07,08 Method Blank (MB) (MB) R3971953-2 09/12/23 03:29 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Diethyl phthalate U 0.000287 0.00300 Dimethyl phthalate U 0.000260 0.00300 Di-n-octyl phthalate U 0.000932 0.00300 Pyrene U 0.000107 0.00100 1,2,4-Trichlorobenzene U 0.0000698 0.0100 4-Chloro-3-methylphenol U 0.000131 0.0100 2-Chlorophenol U 0.000133 0.0100 2,4-Dichlorophenol U 0.000102 0.0100 2,4-Dimethylphenol U 0.0000636 0.0100 4,6-Dinitro-2-methylphenol U 0.00112 0.0100 2,4-Dinitrophenol U 0.00593 0.0100 2-Nitrophenol U 0.000117 0.0100 4-Nitrophenol U 0.000143 0.0100 Pentachlorophenol U 0.000313 0.0100 Phenol U 0.00433 0.0100 2,4,6-Trichlorophenol U 0.000100 0.0100 (S) 2-Fluorophenol 31.1 10.0-120 (S) Phenol-d5 19.6 10.0-120 (S) Nitrobenzene-d5 77.3 10.0-127 (S) 2-Fluorobiphenyl 76.5 10.0-130 (S) 2,4,6-Tribromophenol 58.0 10.0-155 (S) p-Terphenyl-d14 78.2 10.0-128 Laboratory Control Sample (LCS) (LCS) R3971953-1 09/12/23 03:08 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Acenaphthene 0.0500 0.0351 70.2 41.0-120 Acenaphthylene 0.0500 0.0361 72.2 43.0-120 Anthracene 0.0500 0.0366 73.2 45.0-120 Benzidine 0.100 0.00877 8.77 10.0-120 J4 Benzo(a)anthracene 0.0500 0.0373 74.6 47.0-120 Benzo(b)fluoranthene 0.0500 0.0383 76.6 46.0-120 Benzo(k)fluoranthene 0.0500 0.0362 72.4 46.0-120 Benzo(g,h,i)perylene 0.0500 0.0390 78.0 48.0-121 Benzo(a)pyrene 0.0500 0.0371 74.2 47.0-120 Bis(2-chlorethoxy)methane 0.0500 0.0322 64.4 33.0-120 Bis(2-chloroethyl)ether 0.0500 0.0365 73.0 23.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 66 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 66 of 82 QUALITY CONTROL SUMMARYWG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1653392-01,02,03,04,05,06,07,08 Laboratory Control Sample (LCS) (LCS) R3971953-1 09/12/23 03:08 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2,2-Oxybis(1-Chloropropane)0.0500 0.0327 65.4 28.0-120 4-Bromophenyl-phenylether 0.0500 0.0374 74.8 45.0-120 2-Chloronaphthalene 0.0500 0.0350 70.0 37.0-120 4-Chlorophenyl-phenylether 0.0500 0.0322 64.4 44.0-120 Chrysene 0.0500 0.0361 72.2 48.0-120 Dibenz(a,h)anthracene 0.0500 0.0388 77.6 47.0-120 1,2-Dichlorobenzene 0.0500 0.0302 60.4 20.0-120 1,3-Dichlorobenzene 0.0500 0.0302 60.4 17.0-120 1,4-Dichlorobenzene 0.0500 0.0309 61.8 18.0-120 3,3-Dichlorobenzidine 0.100 0.0720 72.0 44.0-120 2,4-Dinitrotoluene 0.0500 0.0352 70.4 49.0-124 2,6-Dinitrotoluene 0.0500 0.0356 71.2 46.0-120 Fluoranthene 0.0500 0.0353 70.6 51.0-120 Fluorene 0.0500 0.0329 65.8 47.0-120 Hexachlorobenzene 0.0500 0.0367 73.4 44.0-120 Hexachloro-1,3-butadiene 0.0500 0.0262 52.4 19.0-120 Hexachlorocyclopentadiene 0.0500 0.0269 53.8 15.0-120 Hexachloroethane 0.0500 0.0301 60.2 15.0-120 Indeno(1,2,3-cd)pyrene 0.0500 0.0350 70.0 49.0-122 Isophorone 0.0500 0.0320 64.0 36.0-120 Naphthalene 0.0500 0.0293 58.6 27.0-120 Nitrobenzene 0.0500 0.0328 65.6 27.0-120 n-Nitrosodimethylamine 0.0500 0.0209 41.8 10.0-120 n-Nitrosodiphenylamine 0.0500 0.0381 76.2 47.0-120 n-Nitrosodi-n-propylamine 0.0500 0.0346 69.2 31.0-120 Phenanthrene 0.0500 0.0367 73.4 46.0-120 Benzylbutyl phthalate 0.0500 0.0398 79.6 43.0-121 Bis(2-ethylhexyl)phthalate 0.0500 0.0368 73.6 43.0-122 Di-n-butyl phthalate 0.0500 0.0376 75.2 49.0-121 Diethyl phthalate 0.0500 0.0330 66.0 48.0-122 Dimethyl phthalate 0.0500 0.0333 66.6 48.0-120 Di-n-octyl phthalate 0.0500 0.0374 74.8 42.0-125 Pyrene 0.0500 0.0375 75.0 47.0-120 1,2,4-Trichlorobenzene 0.0500 0.0251 50.2 24.0-120 4-Chloro-3-methylphenol 0.0500 0.0230 46.0 40.0-120 2-Chlorophenol 0.0500 0.0237 47.4 25.0-120 2,4-Dichlorophenol 0.0500 0.0242 48.4 36.0-120 2,4-Dimethylphenol 0.0500 0.0243 48.6 33.0-120 4,6-Dinitro-2-methylphenol 0.0500 0.0387 77.4 38.0-138 2,4-Dinitrophenol 0.0500 0.0327 65.4 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 67 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 67 of 82 QUALITY CONTROL SUMMARYWG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1653392-01,02,03,04,05,06,07,08 Laboratory Control Sample (LCS) (LCS) R3971953-1 09/12/23 03:08 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2-Nitrophenol 0.0500 0.0326 65.2 31.0-120 4-Nitrophenol 0.0500 0.0110 22.0 10.0-120 Pentachlorophenol 0.0500 0.0254 50.8 23.0-120 Phenol 0.0500 0.0110 22.0 10.0-120 2,4,6-Trichlorophenol 0.0500 0.0336 67.2 42.0-120 (S) 2-Fluorophenol 30.1 10.0-120 (S) Phenol-d5 20.6 10.0-120 (S) Nitrobenzene-d5 59.7 10.0-127 (S) 2-Fluorobiphenyl 71.7 10.0-130 (S) 2,4,6-Tribromophenol 69.5 10.0-155 (S) p-Terphenyl-d14 72.2 10.0-128 L1653443-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653443-05 09/12/23 08:50 • (MS) R3971953-3 09/12/23 09:11 • (MSD) R3971953-4 09/12/23 09:32 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Acenaphthene 0.0455 ND 0.0263 0.0322 57.5 70.4 1 28.0-120 20.2 25 Acenaphthylene 0.0455 ND 0.0273 0.0325 60.0 71.4 1 31.0-121 17.4 25 Anthracene 0.0455 ND 0.0245 0.0327 53.8 71.9 1 36.0-120 J3 28.7 23 Benzidine 0.0910 ND ND ND 0.000 0.000 1 10.0-120 J6 J6 0.000 37 Benzo(a)anthracene 0.0455 ND 0.0209 0.0322 45.9 70.8 1 39.0-120 J3 42.6 23 Benzo(b)fluoranthene 0.0455 ND 0.0209 0.0321 45.9 70.5 1 37.0-120 J3 42.3 23 Benzo(k)fluoranthene 0.0455 ND 0.0194 0.0309 42.6 67.9 1 37.0-120 J3 45.7 26 Benzo(g,h,i)perylene 0.0455 ND 0.0197 0.0319 43.3 70.1 1 37.0-123 J3 47.3 25 Benzo(a)pyrene 0.0455 ND 0.0190 0.0305 41.8 67.0 1 37.0-120 J3 46.5 24 Bis(2-chlorethoxy)methane 0.0455 ND 0.0256 0.0287 56.3 63.1 1 17.0-120 11.4 31 Bis(2-chloroethyl)ether 0.0455 ND 0.0281 0.0321 61.8 70.5 1 14.0-120 13.3 33 2,2-Oxybis(1-Chloropropane)0.0455 ND 0.0263 0.0291 57.8 64.0 1 18.0-120 10.1 34 4-Bromophenyl-phenylether 0.0455 ND 0.0251 0.0337 55.2 74.1 1 37.0-120 J3 29.3 24 2-Chloronaphthalene 0.0455 ND 0.0262 0.0299 57.6 65.7 1 29.0-120 13.2 28 4-Chlorophenyl-phenylether 0.0455 ND 0.0224 0.0294 49.2 64.6 1 36.0-120 J3 27.0 23 Chrysene 0.0455 ND 0.0211 0.0317 46.4 69.7 1 38.0-120 J3 40.2 23 Dibenz(a,h)anthracene 0.0455 ND 0.0199 0.0319 43.7 70.1 1 36.0-121 J3 46.3 24 1,2-Dichlorobenzene 0.0455 ND 0.0234 0.0255 51.4 56.0 1 18.0-120 8.59 40 1,3-Dichlorobenzene 0.0455 ND 0.0225 0.0255 49.5 56.0 1 15.0-120 12.5 40 1,4-Dichlorobenzene 0.0455 ND 0.0238 0.0263 52.3 57.8 1 17.0-120 9.98 40 3,3-Dichlorobenzidine 0.0910 ND ND 0.0133 5.55 14.6 1 10.0-134 J6 J3 89.9 30 2,4-Dinitrotoluene 0.0455 ND 0.0277 0.0322 60.9 70.8 1 39.0-125 15.0 25 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 68 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 68 of 82 QUALITY CONTROL SUMMARYWG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1653392-01,02,03,04,05,06,07,08 L1653443-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653443-05 09/12/23 08:50 • (MS) R3971953-3 09/12/23 09:11 • (MSD) R3971953-4 09/12/23 09:32 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% 2,6-Dinitrotoluene 0.0455 ND 0.0284 0.0338 62.4 74.3 1 36.0-120 17.4 27 Fluoranthene 0.0455 ND 0.0227 0.0330 49.9 72.5 1 41.0-121 J3 37.0 22 Fluorene 0.0455 ND 0.0241 0.0304 53.0 66.8 1 37.0-120 23.1 24 Hexachlorobenzene 0.0455 ND 0.0217 0.0321 47.7 70.5 1 35.0-122 J3 38.7 24 Hexachloro-1,3-butadiene 0.0455 ND 0.0168 0.0213 36.9 46.8 1 12.0-120 23.6 34 Hexachlorocyclopentadiene 0.0455 ND 0.0156 0.0230 34.3 50.5 1 10.0-120 J3 38.3 33 Hexachloroethane 0.0455 ND 0.0221 0.0252 48.6 55.4 1 10.0-120 13.1 40 Indeno(1,2,3-cd)pyrene 0.0455 ND 0.0178 0.0289 39.1 63.5 1 38.0-125 J3 47.5 24 Isophorone 0.0455 ND 0.0259 0.0289 56.9 63.5 1 21.0-120 10.9 27 Naphthalene 0.0455 ND 0.0237 0.0262 52.1 57.6 1 10.0-120 10.0 31 Nitrobenzene 0.0455 ND 0.0353 0.0345 77.6 75.8 1 12.0-120 2.29 30 n-Nitrosodimethylamine 0.0455 ND 0.0172 0.0187 37.8 41.1 1 10.0-120 8.36 40 n-Nitrosodiphenylamine 0.0455 ND 0.0262 0.0336 57.6 73.8 1 37.0-120 J3 24.7 24 n-Nitrosodi-n-propylamine 0.0455 ND 0.0283 0.0307 62.2 67.5 1 16.0-120 8.14 30 Phenanthrene 0.0455 ND 0.0256 0.0335 56.3 73.6 1 33.0-120 J3 26.7 22 Benzylbutyl phthalate 0.0455 ND 0.0266 0.0373 58.5 82.0 1 34.0-126 J3 33.5 24 Bis(2-ethylhexyl)phthalate 0.0455 ND 0.0195 0.0319 42.9 70.1 1 33.0-126 J3 48.2 25 Di-n-butyl phthalate 0.0455 ND 0.0249 0.0355 54.7 78.0 1 35.0-128 J3 35.1 23 Diethyl phthalate 0.0455 ND 0.0245 0.0310 53.8 68.1 1 39.0-125 23.4 24 Dimethyl phthalate 0.0455 ND 0.0220 0.0307 48.4 67.5 1 37.0-120 J3 33.0 24 Di-n-octyl phthalate 0.0455 ND 0.0201 0.0335 44.2 73.6 1 25.0-135 J3 50.0 26 Pyrene 0.0455 ND 0.0249 0.0334 54.7 73.4 1 39.0-120 J3 29.2 22 1,2,4-Trichlorobenzene 0.0455 ND 0.0194 0.0220 42.6 48.4 1 15.0-120 12.6 31 4-Chloro-3-methylphenol 0.0455 ND 0.0126 0.0180 27.7 39.6 1 26.0-120 J3 35.3 27 2-Chlorophenol 0.0455 ND 0.0139 0.0188 30.5 41.3 1 18.0-120 30.0 34 2,4-Dichlorophenol 0.0455 ND 0.0126 0.0184 27.7 40.4 1 19.0-120 J3 37.4 27 2,4-Dimethylphenol 0.0455 ND 0.0136 0.0203 29.9 44.6 1 15.0-120 J3 39.5 28 4,6-Dinitro-2-methylphenol 0.0455 ND 0.0200 0.0321 44.0 70.5 1 10.0-144 J3 46.4 39 2,4-Dinitrophenol 0.0455 ND 0.0194 0.0296 42.6 65.1 1 10.0-120 J3 41.6 40 2-Nitrophenol 0.0455 ND 0.0176 0.0257 38.7 56.5 1 20.0-120 J3 37.4 30 4-Nitrophenol 0.0455 ND ND 0.0102 16.8 22.4 1 10.0-120 28.4 40 Pentachlorophenol 0.0455 ND 0.0126 0.0240 27.7 52.7 1 10.0-128 J3 62.3 37 Phenol 0.0455 ND 0.0107 0.0108 23.5 23.7 1 10.0-120 0.930 40 2,4,6-Trichlorophenol 0.0455 ND 0.0150 0.0244 33.0 53.6 1 26.0-120 J3 47.7 31 (S) 2-Fluorophenol 24.2 28.1 10.0-120 (S) Phenol-d5 17.4 19.0 10.0-120 (S) Nitrobenzene-d5 57.4 63.8 10.0-127 (S) 2-Fluorobiphenyl 56.8 68.4 10.0-130 (S) 2,4,6-Tribromophenol 33.8 58.2 10.0-155 (S) p-Terphenyl-d14 43.3 69.2 10.0-128 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 69 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 69 of 82 QUALITY CONTROL SUMMARYWG2129511 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1653392-09,10,11,12 Method Blank (MB) (MB) R3973817-2 09/13/23 18:11 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acenaphthene U 0.0000886 0.00100 Acenaphthylene U 0.0000921 0.00100 Anthracene U 0.0000804 0.00100 Benzidine U 0.00374 0.0100 Benzo(a)anthracene U 0.000199 0.00100 Benzo(b)fluoranthene U 0.000130 0.00100 Benzo(k)fluoranthene U 0.000120 0.00100 Benzo(g,h,i)perylene U 0.000121 0.00100 Benzo(a)pyrene U 0.0000381 0.00100 Bis(2-chlorethoxy)methane U 0.000116 0.0100 Bis(2-chloroethyl)ether U 0.000137 0.0100 2,2-Oxybis(1-Chloropropane)U 0.000210 0.0100 4-Bromophenyl-phenylether U 0.0000877 0.0100 2-Chloronaphthalene U 0.0000648 0.00100 4-Chlorophenyl-phenylether U 0.0000926 0.0100 Chrysene U 0.000130 0.00100 Dibenz(a,h)anthracene U 0.0000644 0.00100 1,2-Dichlorobenzene U 0.0000713 0.0100 1,3-Dichlorobenzene U 0.000132 0.0100 1,4-Dichlorobenzene U 0.0000942 0.0100 3,3-Dichlorobenzidine U 0.000212 0.0100 2,4-Dinitrotoluene U 0.0000983 0.0100 2,6-Dinitrotoluene U 0.000250 0.0100 Fluoranthene U 0.000102 0.00100 Fluorene U 0.0000844 0.00100 Hexachlorobenzene U 0.0000755 0.00100 Hexachloro-1,3-butadiene U 0.0000968 0.0100 Hexachlorocyclopentadiene U 0.0000598 0.0100 Hexachloroethane U 0.000127 0.0100 Indeno(1,2,3-cd)pyrene U 0.000279 0.00100 Isophorone U 0.000143 0.0100 Naphthalene U 0.000159 0.00100 Nitrobenzene U 0.000297 0.0100 n-Nitrosodimethylamine U 0.000998 0.0100 n-Nitrosodiphenylamine U 0.00237 0.0100 n-Nitrosodi-n-propylamine U 0.000261 0.0100 Phenanthrene U 0.000112 0.00100 Benzylbutyl phthalate U 0.000765 0.00300 Bis(2-ethylhexyl)phthalate U 0.000895 0.00300 Di-n-butyl phthalate U 0.000453 0.00300 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 70 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 70 of 82 QUALITY CONTROL SUMMARYWG2129511 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1653392-09,10,11,12 Method Blank (MB) (MB) R3973817-2 09/13/23 18:11 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Diethyl phthalate U 0.000287 0.00300 Dimethyl phthalate U 0.000260 0.00300 Di-n-octyl phthalate U 0.000932 0.00300 Pyrene U 0.000107 0.00100 1,2,4-Trichlorobenzene U 0.0000698 0.0100 4-Chloro-3-methylphenol U 0.000131 0.0100 2-Chlorophenol U 0.000133 0.0100 2,4-Dichlorophenol U 0.000102 0.0100 2,4-Dimethylphenol U 0.0000636 0.0100 4,6-Dinitro-2-methylphenol U 0.00112 0.0100 2,4-Dinitrophenol U 0.00593 0.0100 2-Nitrophenol U 0.000117 0.0100 4-Nitrophenol U 0.000143 0.0100 Pentachlorophenol U 0.000313 0.0100 Phenol U 0.00433 0.0100 2,4,6-Trichlorophenol U 0.000100 0.0100 (S) 2-Fluorophenol 34.3 10.0-120 (S) Phenol-d5 22.3 10.0-120 (S) Nitrobenzene-d5 59.1 10.0-127 (S) 2-Fluorobiphenyl 58.3 10.0-130 (S) 2,4,6-Tribromophenol 54.0 10.0-155 (S) p-Terphenyl-d14 64.1 10.0-128 Laboratory Control Sample (LCS) (LCS) R3973817-1 09/13/23 17:50 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Acenaphthene 0.0500 0.0325 65.0 41.0-120 Acenaphthylene 0.0500 0.0329 65.8 43.0-120 Anthracene 0.0500 0.0349 69.8 45.0-120 Benzidine 0.100 0.00338 3.38 10.0-120 J4 Benzo(a)anthracene 0.0500 0.0356 71.2 47.0-120 Benzo(b)fluoranthene 0.0500 0.0359 71.8 46.0-120 Benzo(k)fluoranthene 0.0500 0.0345 69.0 46.0-120 Benzo(g,h,i)perylene 0.0500 0.0363 72.6 48.0-121 Benzo(a)pyrene 0.0500 0.0353 70.6 47.0-120 Bis(2-chlorethoxy)methane 0.0500 0.0298 59.6 33.0-120 Bis(2-chloroethyl)ether 0.0500 0.0367 73.4 23.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 71 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 71 of 82 QUALITY CONTROL SUMMARYWG2129511 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1653392-09,10,11,12 Laboratory Control Sample (LCS) (LCS) R3973817-1 09/13/23 17:50 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2,2-Oxybis(1-Chloropropane)0.0500 0.0302 60.4 28.0-120 4-Bromophenyl-phenylether 0.0500 0.0346 69.2 45.0-120 2-Chloronaphthalene 0.0500 0.0291 58.2 37.0-120 4-Chlorophenyl-phenylether 0.0500 0.0326 65.2 44.0-120 Chrysene 0.0500 0.0351 70.2 48.0-120 Dibenz(a,h)anthracene 0.0500 0.0364 72.8 47.0-120 1,2-Dichlorobenzene 0.0500 0.0275 55.0 20.0-120 1,3-Dichlorobenzene 0.0500 0.0270 54.0 17.0-120 1,4-Dichlorobenzene 0.0500 0.0278 55.6 18.0-120 3,3-Dichlorobenzidine 0.100 0.0615 61.5 44.0-120 2,4-Dinitrotoluene 0.0500 0.0396 79.2 49.0-124 2,6-Dinitrotoluene 0.0500 0.0365 73.0 46.0-120 Fluoranthene 0.0500 0.0375 75.0 51.0-120 Fluorene 0.0500 0.0335 67.0 47.0-120 Hexachlorobenzene 0.0500 0.0333 66.6 44.0-120 Hexachloro-1,3-butadiene 0.0500 0.0212 42.4 19.0-120 Hexachlorocyclopentadiene 0.0500 0.0174 34.8 15.0-120 Hexachloroethane 0.0500 0.0271 54.2 15.0-120 Indeno(1,2,3-cd)pyrene 0.0500 0.0323 64.6 49.0-122 Isophorone 0.0500 0.0308 61.6 36.0-120 Naphthalene 0.0500 0.0254 50.8 27.0-120 Nitrobenzene 0.0500 0.0287 57.4 27.0-120 n-Nitrosodimethylamine 0.0500 0.0246 49.2 10.0-120 n-Nitrosodiphenylamine 0.0500 0.0338 67.6 47.0-120 n-Nitrosodi-n-propylamine 0.0500 0.0347 69.4 31.0-120 Phenanthrene 0.0500 0.0349 69.8 46.0-120 Benzylbutyl phthalate 0.0500 0.0390 78.0 43.0-121 Bis(2-ethylhexyl)phthalate 0.0500 0.0371 74.2 43.0-122 Di-n-butyl phthalate 0.0500 0.0421 84.2 49.0-121 Diethyl phthalate 0.0500 0.0383 76.6 48.0-122 Dimethyl phthalate 0.0500 0.0364 72.8 48.0-120 Di-n-octyl phthalate 0.0500 0.0378 75.6 42.0-125 Pyrene 0.0500 0.0336 67.2 47.0-120 1,2,4-Trichlorobenzene 0.0500 0.0220 44.0 24.0-120 4-Chloro-3-methylphenol 0.0500 0.0306 61.2 40.0-120 2-Chlorophenol 0.0500 0.0287 57.4 25.0-120 2,4-Dichlorophenol 0.0500 0.0258 51.6 36.0-120 2,4-Dimethylphenol 0.0500 0.0319 63.8 33.0-120 4,6-Dinitro-2-methylphenol 0.0500 0.0406 81.2 38.0-138 2,4-Dinitrophenol 0.0500 0.0437 87.4 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 72 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 72 of 82 QUALITY CONTROL SUMMARYWG2129511 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1653392-09,10,11,12 Laboratory Control Sample (LCS) (LCS) R3973817-1 09/13/23 17:50 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2-Nitrophenol 0.0500 0.0304 60.8 31.0-120 4-Nitrophenol 0.0500 0.0177 35.4 10.0-120 Pentachlorophenol 0.0500 0.0315 63.0 23.0-120 Phenol 0.0500 0.0156 31.2 10.0-120 2,4,6-Trichlorophenol 0.0500 0.0303 60.6 42.0-120 (S) 2-Fluorophenol 39.8 10.0-120 (S) Phenol-d5 29.2 10.0-120 (S) Nitrobenzene-d5 52.9 10.0-127 (S) 2-Fluorobiphenyl 61.6 10.0-130 (S) 2,4,6-Tribromophenol 67.0 10.0-155 (S) p-Terphenyl-d14 69.3 10.0-128 L1653505-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653505-01 09/13/23 20:20 • (MS) R3973817-3 09/13/23 20:41 • (MSD) R3973817-4 09/13/23 21:02 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Acenaphthene 0.0500 ND 0.0291 0.0282 58.2 56.4 1 28.0-120 3.14 25 Acenaphthylene 0.0500 ND 0.0295 0.0285 59.0 57.0 1 31.0-121 3.45 25 Anthracene 0.0500 ND 0.0302 0.0300 60.4 60.0 1 36.0-120 0.664 23 Benzidine 0.100 ND ND ND 0.000 0.000 1 10.0-120 J6 J6 0.000 37 Benzo(a)anthracene 0.0500 ND 0.0311 0.0306 62.2 61.2 1 39.0-120 1.62 23 Benzo(b)fluoranthene 0.0500 ND 0.0305 0.0302 61.0 60.4 1 37.0-120 0.988 23 Benzo(k)fluoranthene 0.0500 ND 0.0295 0.0292 59.0 58.4 1 37.0-120 1.02 26 Benzo(g,h,i)perylene 0.0500 ND 0.0308 0.0296 61.6 59.2 1 37.0-123 3.97 25 Benzo(a)pyrene 0.0500 ND 0.0301 0.0298 60.2 59.6 1 37.0-120 1.00 24 Bis(2-chlorethoxy)methane 0.0500 ND 0.0273 0.0264 54.6 52.8 1 17.0-120 3.35 31 Bis(2-chloroethyl)ether 0.0500 ND 0.0312 0.0297 62.4 59.4 1 14.0-120 4.93 33 2,2-Oxybis(1-Chloropropane)0.0500 ND 0.0267 0.0260 53.4 52.0 1 18.0-120 2.66 34 4-Bromophenyl-phenylether 0.0500 ND 0.0302 0.0301 60.4 60.2 1 37.0-120 0.332 24 2-Chloronaphthalene 0.0500 ND 0.0264 0.0257 52.8 51.4 1 29.0-120 2.69 28 4-Chlorophenyl-phenylether 0.0500 ND 0.0292 0.0283 58.4 56.6 1 36.0-120 3.13 23 Chrysene 0.0500 ND 0.0305 0.0300 61.0 60.0 1 38.0-120 1.65 23 Dibenz(a,h)anthracene 0.0500 ND 0.0314 0.0304 62.8 60.8 1 36.0-121 3.24 24 1,2-Dichlorobenzene 0.0500 ND 0.0242 0.0233 48.4 46.6 1 18.0-120 3.79 40 1,3-Dichlorobenzene 0.0500 ND 0.0238 0.0231 47.6 46.2 1 15.0-120 2.99 40 1,4-Dichlorobenzene 0.0500 ND 0.0244 0.0235 48.8 47.0 1 17.0-120 3.76 40 3,3-Dichlorobenzidine 0.100 ND 0.0510 0.0499 51.0 49.9 1 10.0-134 2.18 30 2,4-Dinitrotoluene 0.0500 ND 0.0336 0.0331 67.2 66.2 1 39.0-125 1.50 25 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 73 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 73 of 82 QUALITY CONTROL SUMMARYWG2129511 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1653392-09,10,11,12 L1653505-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653505-01 09/13/23 20:20 • (MS) R3973817-3 09/13/23 20:41 • (MSD) R3973817-4 09/13/23 21:02 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% 2,6-Dinitrotoluene 0.0500 ND 0.0327 0.0320 65.4 64.0 1 36.0-120 2.16 27 Fluoranthene 0.0500 ND 0.0327 0.0321 65.4 64.2 1 41.0-121 1.85 22 Fluorene 0.0500 ND 0.0297 0.0288 59.4 57.6 1 37.0-120 3.08 24 Hexachlorobenzene 0.0500 ND 0.0286 0.0287 57.2 57.4 1 35.0-122 0.349 24 Hexachloro-1,3-butadiene 0.0500 ND 0.0197 0.0189 39.4 37.8 1 12.0-120 4.15 34 Hexachlorocyclopentadiene 0.0500 ND 0.0165 0.0168 33.0 33.6 1 10.0-120 1.80 33 Hexachloroethane 0.0500 ND 0.0233 0.0224 46.6 44.8 1 10.0-120 3.94 40 Indeno(1,2,3-cd)pyrene 0.0500 ND 0.0277 0.0270 55.4 54.0 1 38.0-125 2.56 24 Isophorone 0.0500 ND 0.0286 0.0273 57.2 54.6 1 21.0-120 4.65 27 Naphthalene 0.0500 ND 0.0233 0.0226 46.6 45.2 1 10.0-120 3.05 31 Nitrobenzene 0.0500 ND 0.0261 0.0251 52.2 50.2 1 12.0-120 3.91 30 n-Nitrosodimethylamine 0.0500 ND 0.0213 0.0194 42.6 38.8 1 10.0-120 9.34 40 n-Nitrosodiphenylamine 0.0500 ND 0.0303 0.0292 60.6 58.4 1 37.0-120 3.70 24 n-Nitrosodi-n-propylamine 0.0500 ND 0.0314 0.0301 62.8 60.2 1 16.0-120 4.23 30 Phenanthrene 0.0500 ND 0.0306 0.0300 61.2 60.0 1 33.0-120 1.98 22 Benzylbutyl phthalate 0.0500 ND 0.0344 0.0344 68.8 68.8 1 34.0-126 0.000 24 Bis(2-ethylhexyl)phthalate 0.0500 ND 0.0318 0.0314 63.6 62.8 1 33.0-126 1.27 25 Di-n-butyl phthalate 0.0500 ND 0.0366 0.0371 73.2 74.2 1 35.0-128 1.36 23 Diethyl phthalate 0.0500 ND 0.0339 0.0334 67.8 66.8 1 39.0-125 1.49 24 Dimethyl phthalate 0.0500 ND 0.0311 0.0313 62.2 62.6 1 37.0-120 0.641 24 Di-n-octyl phthalate 0.0500 ND 0.0326 0.0324 65.2 64.8 1 25.0-135 0.615 26 Pyrene 0.0500 ND 0.0299 0.0295 59.8 59.0 1 39.0-120 1.35 22 1,2,4-Trichlorobenzene 0.0500 ND 0.0200 0.0194 40.0 38.8 1 15.0-120 3.05 31 4-Chloro-3-methylphenol 0.0500 ND 0.0279 0.0257 55.8 51.4 1 26.0-120 8.21 27 2-Chlorophenol 0.0500 ND 0.0247 0.0223 49.4 44.6 1 18.0-120 10.2 34 2,4-Dichlorophenol 0.0500 ND 0.0233 0.0215 46.6 43.0 1 19.0-120 8.04 27 2,4-Dimethylphenol 0.0500 ND 0.0289 0.0259 57.8 51.8 1 15.0-120 10.9 28 4,6-Dinitro-2-methylphenol 0.0500 ND 0.0357 0.0352 71.4 70.4 1 10.0-144 1.41 39 2,4-Dinitrophenol 0.0500 ND 0.0389 0.0374 77.8 74.8 1 10.0-120 3.93 40 2-Nitrophenol 0.0500 ND 0.0286 0.0271 57.2 54.2 1 20.0-120 5.39 30 4-Nitrophenol 0.0500 ND 0.0154 0.0144 30.8 28.8 1 10.0-120 6.71 40 Pentachlorophenol 0.0500 ND 0.0268 0.0253 53.6 50.6 1 10.0-128 5.76 37 Phenol 0.0500 ND 0.0134 0.0122 26.8 24.4 1 10.0-120 9.37 40 2,4,6-Trichlorophenol 0.0500 ND 0.0272 0.0265 54.4 53.0 1 26.0-120 2.61 31 (S) 2-Fluorophenol 34.1 30.6 10.0-120 (S) Phenol-d5 23.8 21.0 10.0-120 (S) Nitrobenzene-d5 53.8 50.0 10.0-127 (S) 2-Fluorobiphenyl 54.6 52.6 10.0-130 (S) 2,4,6-Tribromophenol 58.0 58.0 10.0-155 (S) p-Terphenyl-d14 59.2 58.9 10.0-128 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 74 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 74 of 82 QUALITY CONTROL SUMMARYWG2129847 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1653392-01,02 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3973202-1 09/12/23 02:01 • (LCSD) R3973202-2 09/12/23 02:20 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 1,4-Dioxane 0.0500 0.0326 0.0508 65.2 102 73.0-146 J4 J3 43.6 20 (S) Nitrobenzene-d5 61.0 60.7 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 75 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 75 of 82 QUALITY CONTROL SUMMARYWG2130432 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1653392-03,04 Method Blank (MB) (MB) R3973198-3 09/14/23 00:39 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,4-Dioxane 0.00277 0.0000447 0.000400 (S) Nitrobenzene-d5 59.7 10.0-120 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3973198-2 09/14/23 00:20 • (LCSD) R3973198-1 09/14/23 00:01 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 1,4-Dioxane 0.0500 0.0552 0.0567 110 113 73.0-146 2.68 20 (S) Nitrobenzene-d5 69.6 58.6 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 76 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 76 of 82 QUALITY CONTROL SUMMARYWG2130709 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1653392-05,06,07,08,09,10,11,12,13,14,15 Method Blank (MB) (MB) R3973199-3 09/14/23 01:37 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,4-Dioxane 0.0000852 J 0.0000447 0.000400 (S) Nitrobenzene-d5 42.8 10.0-120 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3973199-1 09/14/23 00:58 • (LCSD) R3973199-2 09/14/23 01:18 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 1,4-Dioxane 0.0500 0.0485 0.0533 97.0 107 73.0-146 9.43 20 (S) Nitrobenzene-d5 58.7 54.8 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 77 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 77 of 82 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (S) Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be detected in all environmental media. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description B The same analyte is found in the associated blank. E The analyte concentration exceeds the upper limit of the calibration range of the instrument established by the initial calibration (ICAL). J The identification of the analyte is acceptable; the reported value is an estimate. J3 The associated batch QC was outside the established quality control range for precision. J4 The associated batch QC was outside the established quality control range for accuracy. J5 The sample matrix interfered with the ability to make any accurate determination; spike value is high. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 78 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 78 of 82 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 79 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 79 of 82 ANALYTICAL REPORT September 18, 2023 Tetra Tech Inc. - UT Sample Delivery Group:L1654128 Samples Received:09/08/2023 Project Number:117-0551036 Description:Chromalox Report To:Michael Ozier 4750 West 2100 South Suite 400 Salt Lake City, UT 84120 Entire Report Reviewed By: September 18, 2023 [Preliminary Report] Chris Ward Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 1 of 47 September 19, 2023 Chris Ward Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 1 of 47 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 MW-20 L1654128-01 6 MW-14D L1654128-02 8 MW-14S L1654128-03 11 MW-10B L1654128-04 14 MW-16 L1654128-05 17 MW-19 L1654128-06 20 DUPMW-10B L1654128-07 22 Qc: Quality Control Summary 25 Mercury by Method 7470A 25 Metals (ICP) by Method 6010B 27 Volatile Organic Compounds (GC/MS) by Method 8260B 28 Semi Volatile Organic Compounds (GC/MS) by Method 8270C 33 Semi Volatile Organic Compounds (GC/MS) by Method 8270E 42 Gl: Glossary of Terms 45 Al: Accreditations & Locations 46 Sc: Sample Chain of Custody 47 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 2 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 2 of 47 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-20 L1654128-01 GW Michael Ozier 09/07/23 08:30 09/08/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129692 1 09/12/23 16:09 09/13/23 12:54 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2130299 1 09/12/23 09:41 09/12/23 21:37 ZSA Mt. Juliet, TN Metals (ICP) by Method 6010B WG2130299 5 09/12/23 09:41 09/13/23 09:49 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129755 1 09/11/23 19:24 09/11/23 19:24 DWR Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2129848 1 09/12/23 05:12 09/13/23 00:17 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-14D L1654128-02 GW Michael Ozier 09/07/23 08:08 09/08/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129692 1 09/12/23 16:09 09/13/23 12:56 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2130299 1 09/12/23 09:41 09/12/23 21:40 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129755 1 09/11/23 19:43 09/11/23 19:43 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2133344 5 09/16/23 02:06 09/16/23 02:06 ACG Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2129851 1 09/12/23 16:20 09/13/23 11:33 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2129848 1 09/12/23 05:12 09/12/23 23:20 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-14S L1654128-03 GW Michael Ozier 09/07/23 08:50 09/08/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129692 1 09/12/23 16:09 09/13/23 12:59 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2130299 1 09/12/23 09:41 09/12/23 21:43 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129755 20 09/11/23 23:18 09/11/23 23:18 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2133344 500 09/16/23 02:28 09/16/23 02:28 ACG Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2129851 1 09/12/23 16:20 09/13/23 11:54 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2129848 1 09/12/23 05:12 09/12/23 23:39 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-10B L1654128-04 GW Michael Ozier 09/07/23 09:50 09/08/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129692 1 09/12/23 16:09 09/13/23 13:01 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2130299 1 09/12/23 09:41 09/12/23 21:46 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129755 1 09/11/23 20:03 09/11/23 20:03 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2133344 1 09/15/23 21:48 09/15/23 21:48 ACG Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2129851 1 09/12/23 16:20 09/13/23 12:16 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2129848 1 09/12/23 05:12 09/12/23 23:58 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-16 L1654128-05 GW Michael Ozier 09/07/23 09:58 09/08/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129796 1 09/11/23 16:45 09/12/23 01:04 NDL Mt. Juliet, TN Metals (ICP) by Method 6010B WG2130299 1 09/12/23 09:41 09/12/23 21:49 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129755 1 09/11/23 20:22 09/11/23 20:22 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2133344 5 09/16/23 02:49 09/16/23 02:49 ACG Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2129851 1 09/12/23 16:20 09/13/23 12:38 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130432 1 09/13/23 16:19 09/14/23 07:22 AGW Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 3 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 3 of 47 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-19 L1654128-06 GW Michael Ozier 09/07/23 10:45 09/08/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129796 1 09/11/23 16:45 09/12/23 01:07 NDL Mt. Juliet, TN Metals (ICP) by Method 6010B WG2130299 1 09/12/23 09:41 09/12/23 21:52 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129755 1 09/11/23 20:42 09/11/23 20:42 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2133344 1 09/15/23 22:09 09/15/23 22:09 ACG Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130432 1.05 09/13/23 16:19 09/14/23 07:41 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2132810 1 09/15/23 08:06 09/16/23 01:32 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time DUPMW-10B L1654128-07 GW Michael Ozier 09/07/23 00:00 09/08/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129796 1 09/11/23 16:45 09/12/23 01:09 NDL Mt. Juliet, TN Metals (ICP) by Method 6010B WG2130299 1 09/12/23 09:41 09/12/23 21:55 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129755 1 09/11/23 21:01 09/11/23 21:01 DWR Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2130427 1 09/14/23 07:41 09/15/23 13:22 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130432 1.02 09/13/23 16:19 09/14/23 06:44 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2132810 1 09/15/23 08:06 09/16/23 01:51 AGW Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 4 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 4 of 47 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Chris Ward Project Manager Sample Delivery Group (SDG) Narrative pH outside of method requirement. Lab Sample ID Project Sample ID Method L1654128-02 MW-14D 8260B L1654128-03 MW-14S 8260B L1654128-06 MW-19 8260B 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 5 of 47 Chris Ward Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 5 of 47 SAMPLE RESULTS - 01 L1654128 MW-20 Collected date/time: 09/07/23 08:30 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 12:54 WG2129692 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0914 0.0100 1 09/12/2023 21:37 WG2130299 Barium,Dissolved 0.253 0.00500 1 09/12/2023 21:37 WG2130299 Cadmium,Dissolved ND 0.00200 1 09/12/2023 21:37 WG2130299 Chromium,Dissolved ND 0.0100 1 09/12/2023 21:37 WG2130299 Iron,Dissolved ND 0.100 1 09/12/2023 21:37 WG2130299 Lead,Dissolved ND 0.0300 5 09/13/2023 09:49 WG2130299 Manganese,Dissolved 0.132 0.0100 1 09/12/2023 21:37 WG2130299 Selenium,Dissolved ND 0.0100 1 09/12/2023 21:37 WG2130299 Silver,Dissolved ND 0.00500 1 09/12/2023 21:37 WG2130299 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/11/2023 19:24 WG2129755 Acrolein ND 0.0500 1 09/11/2023 19:24 WG2129755 Acrylonitrile ND 0.0100 1 09/11/2023 19:24 WG2129755 Benzene ND 0.00100 1 09/11/2023 19:24 WG2129755 Bromobenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 Bromodichloromethane ND 0.00100 1 09/11/2023 19:24 WG2129755 Bromoform ND 0.00100 1 09/11/2023 19:24 WG2129755 Bromomethane ND 0.00500 1 09/11/2023 19:24 WG2129755 n-Butylbenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 sec-Butylbenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 tert-Butylbenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 Carbon tetrachloride ND 0.00100 1 09/11/2023 19:24 WG2129755 Chlorobenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 Chlorodibromomethane ND 0.00100 1 09/11/2023 19:24 WG2129755 Chloroethane ND 0.00500 1 09/11/2023 19:24 WG2129755 Chloroform ND 0.00500 1 09/11/2023 19:24 WG2129755 Chloromethane ND 0.00250 1 09/11/2023 19:24 WG2129755 2-Chlorotoluene ND 0.00100 1 09/11/2023 19:24 WG2129755 4-Chlorotoluene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/11/2023 19:24 WG2129755 1,2-Dibromoethane ND 0.00100 1 09/11/2023 19:24 WG2129755 Dibromomethane ND 0.00100 1 09/11/2023 19:24 WG2129755 1,2-Dichlorobenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,3-Dichlorobenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,4-Dichlorobenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 Dichlorodifluoromethane ND 0.00500 1 09/11/2023 19:24 WG2129755 1,1-Dichloroethane 0.00808 0.00100 1 09/11/2023 19:24 WG2129755 1,2-Dichloroethane ND 0.00100 1 09/11/2023 19:24 WG2129755 1,1-Dichloroethene 0.0553 0.00100 1 09/11/2023 19:24 WG2129755 cis-1,2-Dichloroethene ND 0.00100 1 09/11/2023 19:24 WG2129755 trans-1,2-Dichloroethene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,2-Dichloropropane ND 0.00100 1 09/11/2023 19:24 WG2129755 1,1-Dichloropropene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,3-Dichloropropane ND 0.00100 1 09/11/2023 19:24 WG2129755 cis-1,3-Dichloropropene ND 0.00100 1 09/11/2023 19:24 WG2129755 trans-1,3-Dichloropropene ND 0.00100 1 09/11/2023 19:24 WG2129755 2,2-Dichloropropane ND 0.00100 1 09/11/2023 19:24 WG2129755 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 6 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 6 of 47 SAMPLE RESULTS - 01 L1654128 MW-20 Collected date/time: 09/07/23 08:30 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/11/2023 19:24 WG2129755 Ethylbenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 Hexachloro-1,3-butadiene ND 0.00100 1 09/11/2023 19:24 WG2129755 Isopropylbenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 p-Isopropyltoluene ND 0.00100 1 09/11/2023 19:24 WG2129755 2-Butanone (MEK)ND 0.0100 1 09/11/2023 19:24 WG2129755 Methylene Chloride ND 0.00500 1 09/11/2023 19:24 WG2129755 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/11/2023 19:24 WG2129755 Methyl tert-butyl ether ND 0.00100 1 09/11/2023 19:24 WG2129755 Naphthalene ND 0.00500 1 09/11/2023 19:24 WG2129755 n-Propylbenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 Styrene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/11/2023 19:24 WG2129755 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/11/2023 19:24 WG2129755 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/11/2023 19:24 WG2129755 Tetrachloroethene ND 0.00100 1 09/11/2023 19:24 WG2129755 Toluene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,2,3-Trichlorobenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,2,4-Trichlorobenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,1,1-Trichloroethane ND 0.00100 1 09/11/2023 19:24 WG2129755 1,1,2-Trichloroethane ND 0.00100 1 09/11/2023 19:24 WG2129755 Trichloroethene ND 0.00100 1 09/11/2023 19:24 WG2129755 Trichlorofluoromethane ND 0.00500 1 09/11/2023 19:24 WG2129755 1,2,3-Trichloropropane ND 0.00250 1 09/11/2023 19:24 WG2129755 1,2,4-Trimethylbenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,2,3-Trimethylbenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,3,5-Trimethylbenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 Vinyl chloride ND 0.00100 1 09/11/2023 19:24 WG2129755 Xylenes, Total ND 0.00300 1 09/11/2023 19:24 WG2129755 (S) Toluene-d8 102 80.0-120 09/11/2023 19:24 WG2129755 (S) 4-Bromofluorobenzene 101 77.0-126 09/11/2023 19:24 WG2129755 (S) 1,2-Dichloroethane-d4 98.9 70.0-130 09/11/2023 19:24 WG2129755 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.176 0.000400 1 09/13/2023 00:17 WG2129848 (S) Nitrobenzene-d5 51.2 10.0-120 09/13/2023 00:17 WG2129848 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 7 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 7 of 47 SAMPLE RESULTS - 02 L1654128 MW-14D Collected date/time: 09/07/23 08:08 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 12:56 WG2129692 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.362 0.0100 1 09/12/2023 21:40 WG2130299 Barium,Dissolved 0.102 0.00500 1 09/12/2023 21:40 WG2130299 Cadmium,Dissolved ND 0.00200 1 09/12/2023 21:40 WG2130299 Chromium,Dissolved ND 0.0100 1 09/12/2023 21:40 WG2130299 Iron,Dissolved 0.200 B 0.100 1 09/12/2023 21:40 WG2130299 Lead,Dissolved ND 0.00600 1 09/12/2023 21:40 WG2130299 Manganese,Dissolved 0.0877 0.0100 1 09/12/2023 21:40 WG2130299 Selenium,Dissolved ND 0.0100 1 09/12/2023 21:40 WG2130299 Silver,Dissolved ND 0.00500 1 09/12/2023 21:40 WG2130299 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/11/2023 19:43 WG2129755 Acrolein ND 0.0500 1 09/11/2023 19:43 WG2129755 Acrylonitrile ND 0.0100 1 09/11/2023 19:43 WG2129755 Benzene ND 0.00100 1 09/11/2023 19:43 WG2129755 Bromobenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 Bromodichloromethane ND 0.00100 1 09/11/2023 19:43 WG2129755 Bromoform ND 0.00100 1 09/11/2023 19:43 WG2129755 Bromomethane ND 0.00500 1 09/11/2023 19:43 WG2129755 n-Butylbenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 sec-Butylbenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 tert-Butylbenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 Carbon tetrachloride ND 0.00100 1 09/11/2023 19:43 WG2129755 Chlorobenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 Chlorodibromomethane ND 0.00100 1 09/11/2023 19:43 WG2129755 Chloroethane 0.221 0.0250 5 09/16/2023 02:06 WG2133344 Chloroform ND 0.00500 1 09/11/2023 19:43 WG2129755 Chloromethane ND 0.00250 1 09/11/2023 19:43 WG2129755 2-Chlorotoluene ND 0.00100 1 09/11/2023 19:43 WG2129755 4-Chlorotoluene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/11/2023 19:43 WG2129755 1,2-Dibromoethane ND 0.00100 1 09/11/2023 19:43 WG2129755 Dibromomethane ND 0.00100 1 09/11/2023 19:43 WG2129755 1,2-Dichlorobenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,3-Dichlorobenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,4-Dichlorobenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 Dichlorodifluoromethane ND 0.00500 1 09/11/2023 19:43 WG2129755 1,1-Dichloroethane 0.132 0.00500 5 09/16/2023 02:06 WG2133344 1,2-Dichloroethane ND 0.00100 1 09/11/2023 19:43 WG2129755 1,1-Dichloroethene 0.0141 0.00100 1 09/11/2023 19:43 WG2129755 cis-1,2-Dichloroethene ND 0.00100 1 09/11/2023 19:43 WG2129755 trans-1,2-Dichloroethene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,2-Dichloropropane ND 0.00100 1 09/11/2023 19:43 WG2129755 1,1-Dichloropropene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,3-Dichloropropane ND 0.00100 1 09/11/2023 19:43 WG2129755 cis-1,3-Dichloropropene ND 0.00100 1 09/11/2023 19:43 WG2129755 trans-1,3-Dichloropropene ND 0.00100 1 09/11/2023 19:43 WG2129755 2,2-Dichloropropane ND 0.00100 1 09/11/2023 19:43 WG2129755 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 8 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 8 of 47 SAMPLE RESULTS - 02 L1654128 MW-14D Collected date/time: 09/07/23 08:08 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/11/2023 19:43 WG2129755 Ethylbenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 Hexachloro-1,3-butadiene ND 0.00100 1 09/11/2023 19:43 WG2129755 Isopropylbenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 p-Isopropyltoluene ND 0.00100 1 09/11/2023 19:43 WG2129755 2-Butanone (MEK)ND 0.0100 1 09/11/2023 19:43 WG2129755 Methylene Chloride ND 0.00500 1 09/11/2023 19:43 WG2129755 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/11/2023 19:43 WG2129755 Methyl tert-butyl ether ND 0.00100 1 09/11/2023 19:43 WG2129755 Naphthalene ND 0.00500 1 09/11/2023 19:43 WG2129755 n-Propylbenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 Styrene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/11/2023 19:43 WG2129755 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/11/2023 19:43 WG2129755 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/11/2023 19:43 WG2129755 Tetrachloroethene ND 0.00100 1 09/11/2023 19:43 WG2129755 Toluene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,2,3-Trichlorobenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,2,4-Trichlorobenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,1,1-Trichloroethane ND 0.00100 1 09/11/2023 19:43 WG2129755 1,1,2-Trichloroethane ND 0.00100 1 09/11/2023 19:43 WG2129755 Trichloroethene ND 0.00100 1 09/11/2023 19:43 WG2129755 Trichlorofluoromethane ND 0.00500 1 09/11/2023 19:43 WG2129755 1,2,3-Trichloropropane ND 0.00250 1 09/11/2023 19:43 WG2129755 1,2,4-Trimethylbenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,2,3-Trimethylbenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,3,5-Trimethylbenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 Vinyl chloride 0.00258 0.00100 1 09/11/2023 19:43 WG2129755 Xylenes, Total ND 0.00300 1 09/11/2023 19:43 WG2129755 (S) Toluene-d8 102 80.0-120 09/11/2023 19:43 WG2129755 (S) Toluene-d8 111 80.0-120 09/16/2023 02:06 WG2133344 (S) 4-Bromofluorobenzene 99.5 77.0-126 09/11/2023 19:43 WG2129755 (S) 4-Bromofluorobenzene 104 77.0-126 09/16/2023 02:06 WG2133344 (S) 1,2-Dichloroethane-d4 101 70.0-130 09/11/2023 19:43 WG2129755 (S) 1,2-Dichloroethane-d4 108 70.0-130 09/16/2023 02:06 WG2133344 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/13/2023 11:33 WG2129851 Acenaphthylene ND 0.00100 1 09/13/2023 11:33 WG2129851 Anthracene ND 0.00100 1 09/13/2023 11:33 WG2129851 Benzidine ND J4 0.0100 1 09/13/2023 11:33 WG2129851 Benzo(a)anthracene ND 0.00100 1 09/13/2023 11:33 WG2129851 Benzo(b)fluoranthene ND 0.00100 1 09/13/2023 11:33 WG2129851 Benzo(k)fluoranthene ND 0.00100 1 09/13/2023 11:33 WG2129851 Benzo(g,h,i)perylene ND 0.00100 1 09/13/2023 11:33 WG2129851 Benzo(a)pyrene ND 0.00100 1 09/13/2023 11:33 WG2129851 Bis(2-chlorethoxy)methane ND 0.0100 1 09/13/2023 11:33 WG2129851 Bis(2-chloroethyl)ether ND 0.0100 1 09/13/2023 11:33 WG2129851 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/13/2023 11:33 WG2129851 4-Bromophenyl-phenylether ND 0.0100 1 09/13/2023 11:33 WG2129851 2-Chloronaphthalene ND 0.00100 1 09/13/2023 11:33 WG2129851 4-Chlorophenyl-phenylether ND 0.0100 1 09/13/2023 11:33 WG2129851 Chrysene ND 0.00100 1 09/13/2023 11:33 WG2129851 Dibenz(a,h)anthracene ND 0.00100 1 09/13/2023 11:33 WG2129851 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 9 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 9 of 47 SAMPLE RESULTS - 02 L1654128 MW-14D Collected date/time: 09/07/23 08:08 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,2-Dichlorobenzene ND 0.0100 1 09/13/2023 11:33 WG2129851 1,3-Dichlorobenzene ND 0.0100 1 09/13/2023 11:33 WG2129851 1,4-Dichlorobenzene ND 0.0100 1 09/13/2023 11:33 WG2129851 3,3-Dichlorobenzidine ND 0.0100 1 09/13/2023 11:33 WG2129851 2,4-Dinitrotoluene ND 0.0100 1 09/13/2023 11:33 WG2129851 2,6-Dinitrotoluene ND 0.0100 1 09/13/2023 11:33 WG2129851 Fluoranthene ND 0.00100 1 09/13/2023 11:33 WG2129851 Fluorene ND 0.00100 1 09/13/2023 11:33 WG2129851 Hexachlorobenzene ND 0.00100 1 09/13/2023 11:33 WG2129851 Hexachloro-1,3-butadiene ND 0.0100 1 09/13/2023 11:33 WG2129851 Hexachlorocyclopentadiene ND 0.0100 1 09/13/2023 11:33 WG2129851 Hexachloroethane ND 0.0100 1 09/13/2023 11:33 WG2129851 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/13/2023 11:33 WG2129851 Isophorone ND 0.0100 1 09/13/2023 11:33 WG2129851 Naphthalene ND 0.00100 1 09/13/2023 11:33 WG2129851 Nitrobenzene ND 0.0100 1 09/13/2023 11:33 WG2129851 n-Nitrosodimethylamine ND 0.0100 1 09/13/2023 11:33 WG2129851 n-Nitrosodiphenylamine ND 0.0100 1 09/13/2023 11:33 WG2129851 n-Nitrosodi-n-propylamine ND 0.0100 1 09/13/2023 11:33 WG2129851 Phenanthrene ND 0.00100 1 09/13/2023 11:33 WG2129851 Benzylbutyl phthalate ND 0.00300 1 09/13/2023 11:33 WG2129851 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/13/2023 11:33 WG2129851 Di-n-butyl phthalate ND 0.00300 1 09/13/2023 11:33 WG2129851 Diethyl phthalate ND 0.00300 1 09/13/2023 11:33 WG2129851 Dimethyl phthalate ND 0.00300 1 09/13/2023 11:33 WG2129851 Di-n-octyl phthalate ND 0.00300 1 09/13/2023 11:33 WG2129851 Pyrene ND 0.00100 1 09/13/2023 11:33 WG2129851 1,2,4-Trichlorobenzene ND 0.0100 1 09/13/2023 11:33 WG2129851 4-Chloro-3-methylphenol ND 0.0100 1 09/13/2023 11:33 WG2129851 2-Chlorophenol ND 0.0100 1 09/13/2023 11:33 WG2129851 2,4-Dichlorophenol ND 0.0100 1 09/13/2023 11:33 WG2129851 2,4-Dimethylphenol ND 0.0100 1 09/13/2023 11:33 WG2129851 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/13/2023 11:33 WG2129851 2,4-Dinitrophenol ND 0.0100 1 09/13/2023 11:33 WG2129851 2-Nitrophenol ND 0.0100 1 09/13/2023 11:33 WG2129851 4-Nitrophenol ND 0.0100 1 09/13/2023 11:33 WG2129851 Pentachlorophenol ND 0.0100 1 09/13/2023 11:33 WG2129851 Phenol ND 0.0100 1 09/13/2023 11:33 WG2129851 2,4,6-Trichlorophenol ND 0.0100 1 09/13/2023 11:33 WG2129851 (S) 2-Fluorophenol 30.0 10.0-120 09/13/2023 11:33 WG2129851 (S) Phenol-d5 21.4 10.0-120 09/13/2023 11:33 WG2129851 (S) Nitrobenzene-d5 60.3 10.0-127 09/13/2023 11:33 WG2129851 (S) 2-Fluorobiphenyl 52.9 10.0-130 09/13/2023 11:33 WG2129851 (S) 2,4,6-Tribromophenol 39.4 10.0-155 09/13/2023 11:33 WG2129851 (S) p-Terphenyl-d14 45.5 10.0-128 09/13/2023 11:33 WG2129851 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane ND 0.000400 1 09/12/2023 23:20 WG2129848 (S) Nitrobenzene-d5 56.4 10.0-120 09/12/2023 23:20 WG2129848 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 10 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 10 of 47 SAMPLE RESULTS - 03 L1654128 MW-14S Collected date/time: 09/07/23 08:50 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 12:59 WG2129692 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0161 0.0100 1 09/12/2023 21:43 WG2130299 Barium,Dissolved 0.0177 0.00500 1 09/12/2023 21:43 WG2130299 Cadmium,Dissolved ND 0.00200 1 09/12/2023 21:43 WG2130299 Chromium,Dissolved ND 0.0100 1 09/12/2023 21:43 WG2130299 Iron,Dissolved ND 0.100 1 09/12/2023 21:43 WG2130299 Lead,Dissolved ND 0.00600 1 09/12/2023 21:43 WG2130299 Manganese,Dissolved 5.80 0.0100 1 09/12/2023 21:43 WG2130299 Selenium,Dissolved ND 0.0100 1 09/12/2023 21:43 WG2130299 Silver,Dissolved ND 0.00500 1 09/12/2023 21:43 WG2130299 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 1.00 20 09/11/2023 23:18 WG2129755 Acrolein ND 1.00 20 09/11/2023 23:18 WG2129755 Acrylonitrile ND 0.200 20 09/11/2023 23:18 WG2129755 Benzene ND 0.0200 20 09/11/2023 23:18 WG2129755 Bromobenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 Bromodichloromethane ND 0.0200 20 09/11/2023 23:18 WG2129755 Bromoform ND 0.0200 20 09/11/2023 23:18 WG2129755 Bromomethane ND 0.100 20 09/11/2023 23:18 WG2129755 n-Butylbenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 sec-Butylbenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 tert-Butylbenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 Carbon tetrachloride ND 0.0200 20 09/11/2023 23:18 WG2129755 Chlorobenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 Chlorodibromomethane ND 0.0200 20 09/11/2023 23:18 WG2129755 Chloroethane ND 0.100 20 09/11/2023 23:18 WG2129755 Chloroform ND 0.100 20 09/11/2023 23:18 WG2129755 Chloromethane ND 0.0500 20 09/11/2023 23:18 WG2129755 2-Chlorotoluene ND 0.0200 20 09/11/2023 23:18 WG2129755 4-Chlorotoluene ND 0.0200 20 09/11/2023 23:18 WG2129755 1,2-Dibromo-3-Chloropropane ND 0.100 20 09/11/2023 23:18 WG2129755 1,2-Dibromoethane ND 0.0200 20 09/11/2023 23:18 WG2129755 Dibromomethane ND 0.0200 20 09/11/2023 23:18 WG2129755 1,2-Dichlorobenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 1,3-Dichlorobenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 1,4-Dichlorobenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 Dichlorodifluoromethane ND 0.100 20 09/11/2023 23:18 WG2129755 1,1-Dichloroethane 3.73 0.500 500 09/16/2023 02:28 WG2133344 1,2-Dichloroethane 0.160 0.0200 20 09/11/2023 23:18 WG2129755 1,1-Dichloroethene 46.2 0.500 500 09/16/2023 02:28 WG2133344 cis-1,2-Dichloroethene ND 0.0200 20 09/11/2023 23:18 WG2129755 trans-1,2-Dichloroethene ND 0.0200 20 09/11/2023 23:18 WG2129755 1,2-Dichloropropane ND 0.0200 20 09/11/2023 23:18 WG2129755 1,1-Dichloropropene ND 0.0200 20 09/11/2023 23:18 WG2129755 1,3-Dichloropropane ND 0.0200 20 09/11/2023 23:18 WG2129755 cis-1,3-Dichloropropene ND 0.0200 20 09/11/2023 23:18 WG2129755 trans-1,3-Dichloropropene ND 0.0200 20 09/11/2023 23:18 WG2129755 2,2-Dichloropropane ND 0.0200 20 09/11/2023 23:18 WG2129755 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 11 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 11 of 47 SAMPLE RESULTS - 03 L1654128 MW-14S Collected date/time: 09/07/23 08:50 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.0200 20 09/11/2023 23:18 WG2129755 Ethylbenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 Hexachloro-1,3-butadiene ND 0.0200 20 09/11/2023 23:18 WG2129755 Isopropylbenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 p-Isopropyltoluene ND 0.0200 20 09/11/2023 23:18 WG2129755 2-Butanone (MEK)ND 0.200 20 09/11/2023 23:18 WG2129755 Methylene Chloride ND 0.100 20 09/11/2023 23:18 WG2129755 4-Methyl-2-pentanone (MIBK)ND 0.200 20 09/11/2023 23:18 WG2129755 Methyl tert-butyl ether ND 0.0200 20 09/11/2023 23:18 WG2129755 Naphthalene ND 0.100 20 09/11/2023 23:18 WG2129755 n-Propylbenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 Styrene ND 0.0200 20 09/11/2023 23:18 WG2129755 1,1,1,2-Tetrachloroethane ND 0.0200 20 09/11/2023 23:18 WG2129755 1,1,2,2-Tetrachloroethane ND 0.0200 20 09/11/2023 23:18 WG2129755 1,1,2-Trichlorotrifluoroethane 0.132 0.0200 20 09/11/2023 23:18 WG2129755 Tetrachloroethene 0.0541 0.0200 20 09/11/2023 23:18 WG2129755 Toluene 0.0411 0.0200 20 09/11/2023 23:18 WG2129755 1,2,3-Trichlorobenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 1,2,4-Trichlorobenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 1,1,1-Trichloroethane 0.268 0.0200 20 09/11/2023 23:18 WG2129755 1,1,2-Trichloroethane 0.0961 0.0200 20 09/11/2023 23:18 WG2129755 Trichloroethene 0.111 0.0200 20 09/11/2023 23:18 WG2129755 Trichlorofluoromethane ND 0.100 20 09/11/2023 23:18 WG2129755 1,2,3-Trichloropropane ND 0.0500 20 09/11/2023 23:18 WG2129755 1,2,4-Trimethylbenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 1,2,3-Trimethylbenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 1,3,5-Trimethylbenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 Vinyl chloride ND 0.0200 20 09/11/2023 23:18 WG2129755 Xylenes, Total ND 0.0600 20 09/11/2023 23:18 WG2129755 (S) Toluene-d8 104 80.0-120 09/11/2023 23:18 WG2129755 (S) Toluene-d8 114 80.0-120 09/16/2023 02:28 WG2133344 (S) 4-Bromofluorobenzene 102 77.0-126 09/11/2023 23:18 WG2129755 (S) 4-Bromofluorobenzene 106 77.0-126 09/16/2023 02:28 WG2133344 (S) 1,2-Dichloroethane-d4 103 70.0-130 09/11/2023 23:18 WG2129755 (S) 1,2-Dichloroethane-d4 102 70.0-130 09/16/2023 02:28 WG2133344 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/13/2023 11:54 WG2129851 Acenaphthylene ND 0.00100 1 09/13/2023 11:54 WG2129851 Anthracene ND 0.00100 1 09/13/2023 11:54 WG2129851 Benzidine ND J4 0.0100 1 09/13/2023 11:54 WG2129851 Benzo(a)anthracene ND 0.00100 1 09/13/2023 11:54 WG2129851 Benzo(b)fluoranthene ND 0.00100 1 09/13/2023 11:54 WG2129851 Benzo(k)fluoranthene ND 0.00100 1 09/13/2023 11:54 WG2129851 Benzo(g,h,i)perylene ND 0.00100 1 09/13/2023 11:54 WG2129851 Benzo(a)pyrene ND 0.00100 1 09/13/2023 11:54 WG2129851 Bis(2-chlorethoxy)methane ND 0.0100 1 09/13/2023 11:54 WG2129851 Bis(2-chloroethyl)ether ND 0.0100 1 09/13/2023 11:54 WG2129851 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/13/2023 11:54 WG2129851 4-Bromophenyl-phenylether ND 0.0100 1 09/13/2023 11:54 WG2129851 2-Chloronaphthalene ND 0.00100 1 09/13/2023 11:54 WG2129851 4-Chlorophenyl-phenylether ND 0.0100 1 09/13/2023 11:54 WG2129851 Chrysene ND 0.00100 1 09/13/2023 11:54 WG2129851 Dibenz(a,h)anthracene ND 0.00100 1 09/13/2023 11:54 WG2129851 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 12 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 12 of 47 SAMPLE RESULTS - 03 L1654128 MW-14S Collected date/time: 09/07/23 08:50 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,2-Dichlorobenzene ND 0.0100 1 09/13/2023 11:54 WG2129851 1,3-Dichlorobenzene ND 0.0100 1 09/13/2023 11:54 WG2129851 1,4-Dichlorobenzene ND 0.0100 1 09/13/2023 11:54 WG2129851 3,3-Dichlorobenzidine ND 0.0100 1 09/13/2023 11:54 WG2129851 2,4-Dinitrotoluene ND 0.0100 1 09/13/2023 11:54 WG2129851 2,6-Dinitrotoluene ND 0.0100 1 09/13/2023 11:54 WG2129851 Fluoranthene ND 0.00100 1 09/13/2023 11:54 WG2129851 Fluorene ND 0.00100 1 09/13/2023 11:54 WG2129851 Hexachlorobenzene ND 0.00100 1 09/13/2023 11:54 WG2129851 Hexachloro-1,3-butadiene ND 0.0100 1 09/13/2023 11:54 WG2129851 Hexachlorocyclopentadiene ND 0.0100 1 09/13/2023 11:54 WG2129851 Hexachloroethane ND 0.0100 1 09/13/2023 11:54 WG2129851 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/13/2023 11:54 WG2129851 Isophorone ND 0.0100 1 09/13/2023 11:54 WG2129851 Naphthalene ND 0.00100 1 09/13/2023 11:54 WG2129851 Nitrobenzene ND 0.0100 1 09/13/2023 11:54 WG2129851 n-Nitrosodimethylamine ND 0.0100 1 09/13/2023 11:54 WG2129851 n-Nitrosodiphenylamine ND 0.0100 1 09/13/2023 11:54 WG2129851 n-Nitrosodi-n-propylamine ND 0.0100 1 09/13/2023 11:54 WG2129851 Phenanthrene ND 0.00100 1 09/13/2023 11:54 WG2129851 Benzylbutyl phthalate ND 0.00300 1 09/13/2023 11:54 WG2129851 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/13/2023 11:54 WG2129851 Di-n-butyl phthalate ND 0.00300 1 09/13/2023 11:54 WG2129851 Diethyl phthalate ND 0.00300 1 09/13/2023 11:54 WG2129851 Dimethyl phthalate ND 0.00300 1 09/13/2023 11:54 WG2129851 Di-n-octyl phthalate ND 0.00300 1 09/13/2023 11:54 WG2129851 Pyrene ND 0.00100 1 09/13/2023 11:54 WG2129851 1,2,4-Trichlorobenzene ND 0.0100 1 09/13/2023 11:54 WG2129851 4-Chloro-3-methylphenol ND 0.0100 1 09/13/2023 11:54 WG2129851 2-Chlorophenol ND 0.0100 1 09/13/2023 11:54 WG2129851 2,4-Dichlorophenol ND 0.0100 1 09/13/2023 11:54 WG2129851 2,4-Dimethylphenol ND 0.0100 1 09/13/2023 11:54 WG2129851 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/13/2023 11:54 WG2129851 2,4-Dinitrophenol ND 0.0100 1 09/13/2023 11:54 WG2129851 2-Nitrophenol ND 0.0100 1 09/13/2023 11:54 WG2129851 4-Nitrophenol ND 0.0100 1 09/13/2023 11:54 WG2129851 Pentachlorophenol ND 0.0100 1 09/13/2023 11:54 WG2129851 Phenol ND 0.0100 1 09/13/2023 11:54 WG2129851 2,4,6-Trichlorophenol ND 0.0100 1 09/13/2023 11:54 WG2129851 (S) 2-Fluorophenol 25.1 10.0-120 09/13/2023 11:54 WG2129851 (S) Phenol-d5 21.4 10.0-120 09/13/2023 11:54 WG2129851 (S) Nitrobenzene-d5 52.6 10.0-127 09/13/2023 11:54 WG2129851 (S) 2-Fluorobiphenyl 47.4 10.0-130 09/13/2023 11:54 WG2129851 (S) 2,4,6-Tribromophenol 40.2 10.0-155 09/13/2023 11:54 WG2129851 (S) p-Terphenyl-d14 40.8 10.0-128 09/13/2023 11:54 WG2129851 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.131 0.000400 1 09/12/2023 23:39 WG2129848 (S) Nitrobenzene-d5 53.4 10.0-120 09/12/2023 23:39 WG2129848 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 13 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 13 of 47 SAMPLE RESULTS - 04 L1654128 MW-10B Collected date/time: 09/07/23 09:50 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:01 WG2129692 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0154 0.0100 1 09/12/2023 21:46 WG2130299 Barium,Dissolved 0.344 0.00500 1 09/12/2023 21:46 WG2130299 Cadmium,Dissolved ND 0.00200 1 09/12/2023 21:46 WG2130299 Chromium,Dissolved ND 0.0100 1 09/12/2023 21:46 WG2130299 Iron,Dissolved ND 0.100 1 09/12/2023 21:46 WG2130299 Lead,Dissolved ND 0.00600 1 09/12/2023 21:46 WG2130299 Manganese,Dissolved 0.485 0.0100 1 09/12/2023 21:46 WG2130299 Selenium,Dissolved ND 0.0100 1 09/12/2023 21:46 WG2130299 Silver,Dissolved ND 0.00500 1 09/12/2023 21:46 WG2130299 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/11/2023 20:03 WG2129755 Acrolein ND 0.0500 1 09/11/2023 20:03 WG2129755 Acrylonitrile ND 0.0100 1 09/11/2023 20:03 WG2129755 Benzene ND 0.00100 1 09/11/2023 20:03 WG2129755 Bromobenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 Bromodichloromethane ND 0.00100 1 09/11/2023 20:03 WG2129755 Bromoform ND 0.00100 1 09/11/2023 20:03 WG2129755 Bromomethane ND 0.00500 1 09/11/2023 20:03 WG2129755 n-Butylbenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 sec-Butylbenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 tert-Butylbenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 Carbon tetrachloride ND 0.00100 1 09/11/2023 20:03 WG2129755 Chlorobenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 Chlorodibromomethane ND 0.00100 1 09/11/2023 20:03 WG2129755 Chloroethane ND 0.00500 1 09/15/2023 21:48 WG2133344 Chloroform ND 0.00500 1 09/11/2023 20:03 WG2129755 Chloromethane ND 0.00250 1 09/11/2023 20:03 WG2129755 2-Chlorotoluene ND 0.00100 1 09/11/2023 20:03 WG2129755 4-Chlorotoluene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/11/2023 20:03 WG2129755 1,2-Dibromoethane ND 0.00100 1 09/11/2023 20:03 WG2129755 Dibromomethane ND 0.00100 1 09/11/2023 20:03 WG2129755 1,2-Dichlorobenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,3-Dichlorobenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,4-Dichlorobenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 Dichlorodifluoromethane ND 0.00500 1 09/11/2023 20:03 WG2129755 1,1-Dichloroethane 0.00371 0.00100 1 09/15/2023 21:48 WG2133344 1,2-Dichloroethane ND 0.00100 1 09/11/2023 20:03 WG2129755 1,1-Dichloroethene 0.0355 0.00100 1 09/11/2023 20:03 WG2129755 cis-1,2-Dichloroethene ND 0.00100 1 09/11/2023 20:03 WG2129755 trans-1,2-Dichloroethene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,2-Dichloropropane ND 0.00100 1 09/11/2023 20:03 WG2129755 1,1-Dichloropropene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,3-Dichloropropane ND 0.00100 1 09/11/2023 20:03 WG2129755 cis-1,3-Dichloropropene ND 0.00100 1 09/11/2023 20:03 WG2129755 trans-1,3-Dichloropropene ND 0.00100 1 09/11/2023 20:03 WG2129755 2,2-Dichloropropane ND 0.00100 1 09/11/2023 20:03 WG2129755 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 14 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 14 of 47 SAMPLE RESULTS - 04 L1654128 MW-10B Collected date/time: 09/07/23 09:50 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/11/2023 20:03 WG2129755 Ethylbenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 Hexachloro-1,3-butadiene ND 0.00100 1 09/11/2023 20:03 WG2129755 Isopropylbenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 p-Isopropyltoluene ND 0.00100 1 09/11/2023 20:03 WG2129755 2-Butanone (MEK)ND 0.0100 1 09/11/2023 20:03 WG2129755 Methylene Chloride ND 0.00500 1 09/11/2023 20:03 WG2129755 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/11/2023 20:03 WG2129755 Methyl tert-butyl ether ND 0.00100 1 09/11/2023 20:03 WG2129755 Naphthalene ND 0.00500 1 09/11/2023 20:03 WG2129755 n-Propylbenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 Styrene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/11/2023 20:03 WG2129755 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/11/2023 20:03 WG2129755 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/11/2023 20:03 WG2129755 Tetrachloroethene ND 0.00100 1 09/11/2023 20:03 WG2129755 Toluene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,2,3-Trichlorobenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,2,4-Trichlorobenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,1,1-Trichloroethane ND 0.00100 1 09/11/2023 20:03 WG2129755 1,1,2-Trichloroethane ND 0.00100 1 09/11/2023 20:03 WG2129755 Trichloroethene ND 0.00100 1 09/11/2023 20:03 WG2129755 Trichlorofluoromethane ND 0.00500 1 09/11/2023 20:03 WG2129755 1,2,3-Trichloropropane ND 0.00250 1 09/11/2023 20:03 WG2129755 1,2,4-Trimethylbenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,2,3-Trimethylbenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,3,5-Trimethylbenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 Vinyl chloride ND 0.00100 1 09/11/2023 20:03 WG2129755 Xylenes, Total ND 0.00300 1 09/11/2023 20:03 WG2129755 (S) Toluene-d8 104 80.0-120 09/11/2023 20:03 WG2129755 (S) Toluene-d8 113 80.0-120 09/15/2023 21:48 WG2133344 (S) 4-Bromofluorobenzene 99.3 77.0-126 09/11/2023 20:03 WG2129755 (S) 4-Bromofluorobenzene 105 77.0-126 09/15/2023 21:48 WG2133344 (S) 1,2-Dichloroethane-d4 99.8 70.0-130 09/11/2023 20:03 WG2129755 (S) 1,2-Dichloroethane-d4 106 70.0-130 09/15/2023 21:48 WG2133344 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/13/2023 12:16 WG2129851 Acenaphthylene ND 0.00100 1 09/13/2023 12:16 WG2129851 Anthracene ND 0.00100 1 09/13/2023 12:16 WG2129851 Benzidine ND J4 0.0100 1 09/13/2023 12:16 WG2129851 Benzo(a)anthracene ND 0.00100 1 09/13/2023 12:16 WG2129851 Benzo(b)fluoranthene ND 0.00100 1 09/13/2023 12:16 WG2129851 Benzo(k)fluoranthene ND 0.00100 1 09/13/2023 12:16 WG2129851 Benzo(g,h,i)perylene ND 0.00100 1 09/13/2023 12:16 WG2129851 Benzo(a)pyrene ND 0.00100 1 09/13/2023 12:16 WG2129851 Bis(2-chlorethoxy)methane ND 0.0100 1 09/13/2023 12:16 WG2129851 Bis(2-chloroethyl)ether ND 0.0100 1 09/13/2023 12:16 WG2129851 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/13/2023 12:16 WG2129851 4-Bromophenyl-phenylether ND 0.0100 1 09/13/2023 12:16 WG2129851 2-Chloronaphthalene ND 0.00100 1 09/13/2023 12:16 WG2129851 4-Chlorophenyl-phenylether ND 0.0100 1 09/13/2023 12:16 WG2129851 Chrysene ND 0.00100 1 09/13/2023 12:16 WG2129851 Dibenz(a,h)anthracene ND 0.00100 1 09/13/2023 12:16 WG2129851 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 15 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 15 of 47 SAMPLE RESULTS - 04 L1654128 MW-10B Collected date/time: 09/07/23 09:50 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,2-Dichlorobenzene ND 0.0100 1 09/13/2023 12:16 WG2129851 1,3-Dichlorobenzene ND 0.0100 1 09/13/2023 12:16 WG2129851 1,4-Dichlorobenzene ND 0.0100 1 09/13/2023 12:16 WG2129851 3,3-Dichlorobenzidine ND 0.0100 1 09/13/2023 12:16 WG2129851 2,4-Dinitrotoluene ND 0.0100 1 09/13/2023 12:16 WG2129851 2,6-Dinitrotoluene ND 0.0100 1 09/13/2023 12:16 WG2129851 Fluoranthene ND 0.00100 1 09/13/2023 12:16 WG2129851 Fluorene ND 0.00100 1 09/13/2023 12:16 WG2129851 Hexachlorobenzene ND 0.00100 1 09/13/2023 12:16 WG2129851 Hexachloro-1,3-butadiene ND 0.0100 1 09/13/2023 12:16 WG2129851 Hexachlorocyclopentadiene ND 0.0100 1 09/13/2023 12:16 WG2129851 Hexachloroethane ND 0.0100 1 09/13/2023 12:16 WG2129851 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/13/2023 12:16 WG2129851 Isophorone ND 0.0100 1 09/13/2023 12:16 WG2129851 Naphthalene ND 0.00100 1 09/13/2023 12:16 WG2129851 Nitrobenzene ND 0.0100 1 09/13/2023 12:16 WG2129851 n-Nitrosodimethylamine ND 0.0100 1 09/13/2023 12:16 WG2129851 n-Nitrosodiphenylamine ND 0.0100 1 09/13/2023 12:16 WG2129851 n-Nitrosodi-n-propylamine ND 0.0100 1 09/13/2023 12:16 WG2129851 Phenanthrene ND 0.00100 1 09/13/2023 12:16 WG2129851 Benzylbutyl phthalate ND 0.00300 1 09/13/2023 12:16 WG2129851 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/13/2023 12:16 WG2129851 Di-n-butyl phthalate ND 0.00300 1 09/13/2023 12:16 WG2129851 Diethyl phthalate ND 0.00300 1 09/13/2023 12:16 WG2129851 Dimethyl phthalate ND 0.00300 1 09/13/2023 12:16 WG2129851 Di-n-octyl phthalate ND 0.00300 1 09/13/2023 12:16 WG2129851 Pyrene ND 0.00100 1 09/13/2023 12:16 WG2129851 1,2,4-Trichlorobenzene ND 0.0100 1 09/13/2023 12:16 WG2129851 4-Chloro-3-methylphenol ND 0.0100 1 09/13/2023 12:16 WG2129851 2-Chlorophenol ND 0.0100 1 09/13/2023 12:16 WG2129851 2,4-Dichlorophenol ND 0.0100 1 09/13/2023 12:16 WG2129851 2,4-Dimethylphenol ND 0.0100 1 09/13/2023 12:16 WG2129851 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/13/2023 12:16 WG2129851 2,4-Dinitrophenol ND 0.0100 1 09/13/2023 12:16 WG2129851 2-Nitrophenol ND 0.0100 1 09/13/2023 12:16 WG2129851 4-Nitrophenol ND 0.0100 1 09/13/2023 12:16 WG2129851 Pentachlorophenol ND 0.0100 1 09/13/2023 12:16 WG2129851 Phenol ND 0.0100 1 09/13/2023 12:16 WG2129851 2,4,6-Trichlorophenol ND 0.0100 1 09/13/2023 12:16 WG2129851 (S) 2-Fluorophenol 28.0 10.0-120 09/13/2023 12:16 WG2129851 (S) Phenol-d5 18.9 10.0-120 09/13/2023 12:16 WG2129851 (S) Nitrobenzene-d5 53.4 10.0-127 09/13/2023 12:16 WG2129851 (S) 2-Fluorobiphenyl 50.8 10.0-130 09/13/2023 12:16 WG2129851 (S) 2,4,6-Tribromophenol 49.5 10.0-155 09/13/2023 12:16 WG2129851 (S) p-Terphenyl-d14 54.8 10.0-128 09/13/2023 12:16 WG2129851 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.0184 0.000400 1 09/12/2023 23:58 WG2129848 (S) Nitrobenzene-d5 50.8 10.0-120 09/12/2023 23:58 WG2129848 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 16 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 16 of 47 SAMPLE RESULTS - 05 L1654128 MW-16 Collected date/time: 09/07/23 09:58 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/12/2023 01:04 WG2129796 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0905 0.0100 1 09/12/2023 21:49 WG2130299 Barium,Dissolved 0.171 0.00500 1 09/12/2023 21:49 WG2130299 Cadmium,Dissolved ND 0.00200 1 09/12/2023 21:49 WG2130299 Chromium,Dissolved ND 0.0100 1 09/12/2023 21:49 WG2130299 Iron,Dissolved ND 0.100 1 09/12/2023 21:49 WG2130299 Lead,Dissolved ND 0.00600 1 09/12/2023 21:49 WG2130299 Manganese,Dissolved 0.152 0.0100 1 09/12/2023 21:49 WG2130299 Selenium,Dissolved ND 0.0100 1 09/12/2023 21:49 WG2130299 Silver,Dissolved ND 0.00500 1 09/12/2023 21:49 WG2130299 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/11/2023 20:22 WG2129755 Acrolein ND 0.0500 1 09/11/2023 20:22 WG2129755 Acrylonitrile ND 0.0100 1 09/11/2023 20:22 WG2129755 Benzene ND 0.00100 1 09/11/2023 20:22 WG2129755 Bromobenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 Bromodichloromethane ND 0.00100 1 09/11/2023 20:22 WG2129755 Bromoform ND 0.00100 1 09/11/2023 20:22 WG2129755 Bromomethane ND 0.00500 1 09/11/2023 20:22 WG2129755 n-Butylbenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 sec-Butylbenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 tert-Butylbenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 Carbon tetrachloride ND 0.00100 1 09/11/2023 20:22 WG2129755 Chlorobenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 Chlorodibromomethane ND 0.00100 1 09/11/2023 20:22 WG2129755 Chloroethane ND 0.00500 1 09/11/2023 20:22 WG2129755 Chloroform ND 0.00500 1 09/11/2023 20:22 WG2129755 Chloromethane ND 0.00250 1 09/11/2023 20:22 WG2129755 2-Chlorotoluene ND 0.00100 1 09/11/2023 20:22 WG2129755 4-Chlorotoluene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/11/2023 20:22 WG2129755 1,2-Dibromoethane ND 0.00100 1 09/11/2023 20:22 WG2129755 Dibromomethane ND 0.00100 1 09/11/2023 20:22 WG2129755 1,2-Dichlorobenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,3-Dichlorobenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,4-Dichlorobenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 Dichlorodifluoromethane ND 0.00500 1 09/11/2023 20:22 WG2129755 1,1-Dichloroethane 0.0128 0.00100 1 09/11/2023 20:22 WG2129755 1,2-Dichloroethane 0.00131 0.00100 1 09/11/2023 20:22 WG2129755 1,1-Dichloroethene 0.203 0.00500 5 09/16/2023 02:49 WG2133344 cis-1,2-Dichloroethene ND 0.00100 1 09/11/2023 20:22 WG2129755 trans-1,2-Dichloroethene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,2-Dichloropropane ND 0.00100 1 09/11/2023 20:22 WG2129755 1,1-Dichloropropene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,3-Dichloropropane ND 0.00100 1 09/11/2023 20:22 WG2129755 cis-1,3-Dichloropropene ND 0.00100 1 09/11/2023 20:22 WG2129755 trans-1,3-Dichloropropene ND 0.00100 1 09/11/2023 20:22 WG2129755 2,2-Dichloropropane ND 0.00100 1 09/11/2023 20:22 WG2129755 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 17 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 17 of 47 SAMPLE RESULTS - 05 L1654128 MW-16 Collected date/time: 09/07/23 09:58 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/11/2023 20:22 WG2129755 Ethylbenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 Hexachloro-1,3-butadiene ND 0.00100 1 09/11/2023 20:22 WG2129755 Isopropylbenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 p-Isopropyltoluene ND 0.00100 1 09/11/2023 20:22 WG2129755 2-Butanone (MEK)ND 0.0100 1 09/11/2023 20:22 WG2129755 Methylene Chloride ND 0.00500 1 09/11/2023 20:22 WG2129755 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/11/2023 20:22 WG2129755 Methyl tert-butyl ether ND 0.00100 1 09/11/2023 20:22 WG2129755 Naphthalene ND 0.00500 1 09/11/2023 20:22 WG2129755 n-Propylbenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 Styrene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/11/2023 20:22 WG2129755 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/11/2023 20:22 WG2129755 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/11/2023 20:22 WG2129755 Tetrachloroethene ND 0.00100 1 09/11/2023 20:22 WG2129755 Toluene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,2,3-Trichlorobenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,2,4-Trichlorobenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,1,1-Trichloroethane ND 0.00100 1 09/11/2023 20:22 WG2129755 1,1,2-Trichloroethane ND 0.00100 1 09/11/2023 20:22 WG2129755 Trichloroethene ND 0.00100 1 09/11/2023 20:22 WG2129755 Trichlorofluoromethane ND 0.00500 1 09/11/2023 20:22 WG2129755 1,2,3-Trichloropropane ND 0.00250 1 09/11/2023 20:22 WG2129755 1,2,4-Trimethylbenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,2,3-Trimethylbenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,3,5-Trimethylbenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 Vinyl chloride 0.00259 0.00100 1 09/11/2023 20:22 WG2129755 Xylenes, Total ND 0.00300 1 09/11/2023 20:22 WG2129755 (S) Toluene-d8 103 80.0-120 09/11/2023 20:22 WG2129755 (S) Toluene-d8 111 80.0-120 09/16/2023 02:49 WG2133344 (S) 4-Bromofluorobenzene 98.0 77.0-126 09/11/2023 20:22 WG2129755 (S) 4-Bromofluorobenzene 106 77.0-126 09/16/2023 02:49 WG2133344 (S) 1,2-Dichloroethane-d4 98.9 70.0-130 09/11/2023 20:22 WG2129755 (S) 1,2-Dichloroethane-d4 109 70.0-130 09/16/2023 02:49 WG2133344 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/13/2023 12:38 WG2129851 Acenaphthylene ND 0.00100 1 09/13/2023 12:38 WG2129851 Anthracene ND 0.00100 1 09/13/2023 12:38 WG2129851 Benzidine ND J4 0.0100 1 09/13/2023 12:38 WG2129851 Benzo(a)anthracene ND 0.00100 1 09/13/2023 12:38 WG2129851 Benzo(b)fluoranthene ND 0.00100 1 09/13/2023 12:38 WG2129851 Benzo(k)fluoranthene ND 0.00100 1 09/13/2023 12:38 WG2129851 Benzo(g,h,i)perylene ND 0.00100 1 09/13/2023 12:38 WG2129851 Benzo(a)pyrene ND 0.00100 1 09/13/2023 12:38 WG2129851 Bis(2-chlorethoxy)methane ND 0.0100 1 09/13/2023 12:38 WG2129851 Bis(2-chloroethyl)ether ND 0.0100 1 09/13/2023 12:38 WG2129851 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/13/2023 12:38 WG2129851 4-Bromophenyl-phenylether ND 0.0100 1 09/13/2023 12:38 WG2129851 2-Chloronaphthalene ND 0.00100 1 09/13/2023 12:38 WG2129851 4-Chlorophenyl-phenylether ND 0.0100 1 09/13/2023 12:38 WG2129851 Chrysene ND 0.00100 1 09/13/2023 12:38 WG2129851 Dibenz(a,h)anthracene ND 0.00100 1 09/13/2023 12:38 WG2129851 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 18 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 18 of 47 SAMPLE RESULTS - 05 L1654128 MW-16 Collected date/time: 09/07/23 09:58 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,2-Dichlorobenzene ND 0.0100 1 09/13/2023 12:38 WG2129851 1,3-Dichlorobenzene ND 0.0100 1 09/13/2023 12:38 WG2129851 1,4-Dichlorobenzene ND 0.0100 1 09/13/2023 12:38 WG2129851 3,3-Dichlorobenzidine ND 0.0100 1 09/13/2023 12:38 WG2129851 2,4-Dinitrotoluene ND 0.0100 1 09/13/2023 12:38 WG2129851 2,6-Dinitrotoluene ND 0.0100 1 09/13/2023 12:38 WG2129851 Fluoranthene ND 0.00100 1 09/13/2023 12:38 WG2129851 Fluorene ND 0.00100 1 09/13/2023 12:38 WG2129851 Hexachlorobenzene ND 0.00100 1 09/13/2023 12:38 WG2129851 Hexachloro-1,3-butadiene ND 0.0100 1 09/13/2023 12:38 WG2129851 Hexachlorocyclopentadiene ND 0.0100 1 09/13/2023 12:38 WG2129851 Hexachloroethane ND 0.0100 1 09/13/2023 12:38 WG2129851 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/13/2023 12:38 WG2129851 Isophorone ND 0.0100 1 09/13/2023 12:38 WG2129851 Naphthalene ND 0.00100 1 09/13/2023 12:38 WG2129851 Nitrobenzene ND 0.0100 1 09/13/2023 12:38 WG2129851 n-Nitrosodimethylamine ND 0.0100 1 09/13/2023 12:38 WG2129851 n-Nitrosodiphenylamine ND 0.0100 1 09/13/2023 12:38 WG2129851 n-Nitrosodi-n-propylamine ND 0.0100 1 09/13/2023 12:38 WG2129851 Phenanthrene ND 0.00100 1 09/13/2023 12:38 WG2129851 Benzylbutyl phthalate ND 0.00300 1 09/13/2023 12:38 WG2129851 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/13/2023 12:38 WG2129851 Di-n-butyl phthalate ND 0.00300 1 09/13/2023 12:38 WG2129851 Diethyl phthalate ND 0.00300 1 09/13/2023 12:38 WG2129851 Dimethyl phthalate ND 0.00300 1 09/13/2023 12:38 WG2129851 Di-n-octyl phthalate ND 0.00300 1 09/13/2023 12:38 WG2129851 Pyrene ND 0.00100 1 09/13/2023 12:38 WG2129851 1,2,4-Trichlorobenzene ND 0.0100 1 09/13/2023 12:38 WG2129851 4-Chloro-3-methylphenol ND 0.0100 1 09/13/2023 12:38 WG2129851 2-Chlorophenol ND 0.0100 1 09/13/2023 12:38 WG2129851 2,4-Dichlorophenol ND 0.0100 1 09/13/2023 12:38 WG2129851 2,4-Dimethylphenol ND 0.0100 1 09/13/2023 12:38 WG2129851 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/13/2023 12:38 WG2129851 2,4-Dinitrophenol ND 0.0100 1 09/13/2023 12:38 WG2129851 2-Nitrophenol ND 0.0100 1 09/13/2023 12:38 WG2129851 4-Nitrophenol ND 0.0100 1 09/13/2023 12:38 WG2129851 Pentachlorophenol ND 0.0100 1 09/13/2023 12:38 WG2129851 Phenol ND 0.0100 1 09/13/2023 12:38 WG2129851 2,4,6-Trichlorophenol ND 0.0100 1 09/13/2023 12:38 WG2129851 (S) 2-Fluorophenol 32.6 10.0-120 09/13/2023 12:38 WG2129851 (S) Phenol-d5 23.1 10.0-120 09/13/2023 12:38 WG2129851 (S) Nitrobenzene-d5 59.5 10.0-127 09/13/2023 12:38 WG2129851 (S) 2-Fluorobiphenyl 58.3 10.0-130 09/13/2023 12:38 WG2129851 (S) 2,4,6-Tribromophenol 46.1 10.0-155 09/13/2023 12:38 WG2129851 (S) p-Terphenyl-d14 51.5 10.0-128 09/13/2023 12:38 WG2129851 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.135 0.000400 1 09/14/2023 07:22 WG2130432 (S) Nitrobenzene-d5 25.3 10.0-120 09/14/2023 07:22 WG2130432 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 19 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 19 of 47 SAMPLE RESULTS - 06 L1654128 MW-19 Collected date/time: 09/07/23 10:45 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/12/2023 01:07 WG2129796 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0394 0.0100 1 09/12/2023 21:52 WG2130299 Barium,Dissolved 0.208 0.00500 1 09/12/2023 21:52 WG2130299 Cadmium,Dissolved ND 0.00200 1 09/12/2023 21:52 WG2130299 Chromium,Dissolved ND 0.0100 1 09/12/2023 21:52 WG2130299 Iron,Dissolved ND 0.100 1 09/12/2023 21:52 WG2130299 Lead,Dissolved ND 0.00600 1 09/12/2023 21:52 WG2130299 Manganese,Dissolved ND 0.0100 1 09/12/2023 21:52 WG2130299 Selenium,Dissolved ND 0.0100 1 09/12/2023 21:52 WG2130299 Silver,Dissolved ND 0.00500 1 09/12/2023 21:52 WG2130299 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/11/2023 20:42 WG2129755 Acrolein ND 0.0500 1 09/11/2023 20:42 WG2129755 Acrylonitrile ND 0.0100 1 09/11/2023 20:42 WG2129755 Benzene ND 0.00100 1 09/11/2023 20:42 WG2129755 Bromobenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 Bromodichloromethane ND 0.00100 1 09/11/2023 20:42 WG2129755 Bromoform ND 0.00100 1 09/11/2023 20:42 WG2129755 Bromomethane ND 0.00500 1 09/11/2023 20:42 WG2129755 n-Butylbenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 sec-Butylbenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 tert-Butylbenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 Carbon tetrachloride ND 0.00100 1 09/11/2023 20:42 WG2129755 Chlorobenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 Chlorodibromomethane ND 0.00100 1 09/11/2023 20:42 WG2129755 Chloroethane ND 0.00500 1 09/11/2023 20:42 WG2129755 Chloroform ND 0.00500 1 09/11/2023 20:42 WG2129755 Chloromethane ND 0.00250 1 09/11/2023 20:42 WG2129755 2-Chlorotoluene ND 0.00100 1 09/11/2023 20:42 WG2129755 4-Chlorotoluene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/11/2023 20:42 WG2129755 1,2-Dibromoethane ND 0.00100 1 09/11/2023 20:42 WG2129755 Dibromomethane ND 0.00100 1 09/11/2023 20:42 WG2129755 1,2-Dichlorobenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,3-Dichlorobenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,4-Dichlorobenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 Dichlorodifluoromethane ND 0.00500 1 09/11/2023 20:42 WG2129755 1,1-Dichloroethane ND 0.00100 1 09/15/2023 22:09 WG2133344 1,2-Dichloroethane ND 0.00100 1 09/11/2023 20:42 WG2129755 1,1-Dichloroethene 0.00120 0.00100 1 09/15/2023 22:09 WG2133344 cis-1,2-Dichloroethene ND 0.00100 1 09/11/2023 20:42 WG2129755 trans-1,2-Dichloroethene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,2-Dichloropropane ND 0.00100 1 09/11/2023 20:42 WG2129755 1,1-Dichloropropene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,3-Dichloropropane ND 0.00100 1 09/11/2023 20:42 WG2129755 cis-1,3-Dichloropropene ND 0.00100 1 09/11/2023 20:42 WG2129755 trans-1,3-Dichloropropene ND 0.00100 1 09/11/2023 20:42 WG2129755 2,2-Dichloropropane ND 0.00100 1 09/11/2023 20:42 WG2129755 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 20 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 20 of 47 SAMPLE RESULTS - 06 L1654128 MW-19 Collected date/time: 09/07/23 10:45 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/11/2023 20:42 WG2129755 Ethylbenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 Hexachloro-1,3-butadiene ND 0.00100 1 09/11/2023 20:42 WG2129755 Isopropylbenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 p-Isopropyltoluene ND 0.00100 1 09/11/2023 20:42 WG2129755 2-Butanone (MEK)ND 0.0100 1 09/11/2023 20:42 WG2129755 Methylene Chloride ND 0.00500 1 09/11/2023 20:42 WG2129755 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/11/2023 20:42 WG2129755 Methyl tert-butyl ether ND 0.00100 1 09/11/2023 20:42 WG2129755 Naphthalene ND 0.00500 1 09/11/2023 20:42 WG2129755 n-Propylbenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 Styrene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/11/2023 20:42 WG2129755 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/11/2023 20:42 WG2129755 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/11/2023 20:42 WG2129755 Tetrachloroethene ND 0.00100 1 09/11/2023 20:42 WG2129755 Toluene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,2,3-Trichlorobenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,2,4-Trichlorobenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,1,1-Trichloroethane ND 0.00100 1 09/11/2023 20:42 WG2129755 1,1,2-Trichloroethane ND 0.00100 1 09/11/2023 20:42 WG2129755 Trichloroethene ND 0.00100 1 09/11/2023 20:42 WG2129755 Trichlorofluoromethane ND 0.00500 1 09/11/2023 20:42 WG2129755 1,2,3-Trichloropropane ND 0.00250 1 09/11/2023 20:42 WG2129755 1,2,4-Trimethylbenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,2,3-Trimethylbenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,3,5-Trimethylbenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 Vinyl chloride ND 0.00100 1 09/11/2023 20:42 WG2129755 Xylenes, Total ND 0.00300 1 09/11/2023 20:42 WG2129755 (S) Toluene-d8 103 80.0-120 09/11/2023 20:42 WG2129755 (S) Toluene-d8 114 80.0-120 09/15/2023 22:09 WG2133344 (S) 4-Bromofluorobenzene 99.4 77.0-126 09/11/2023 20:42 WG2129755 (S) 4-Bromofluorobenzene 105 77.0-126 09/15/2023 22:09 WG2133344 (S) 1,2-Dichloroethane-d4 104 70.0-130 09/11/2023 20:42 WG2129755 (S) 1,2-Dichloroethane-d4 110 70.0-130 09/15/2023 22:09 WG2133344 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00299 B 0.000420 1.05 09/14/2023 07:41 WG2130432 1,4-Dioxane 0.0216 B Q 0.000400 1 09/16/2023 01:32 WG2132810 (S) Nitrobenzene-d5 35.0 10.0-120 09/14/2023 07:41 WG2130432 (S) Nitrobenzene-d5 53.5 10.0-120 09/16/2023 01:32 WG2132810 Sample Narrative: L1654128-06 WG2130432, WG2132810: Duplicate Analysis performed due to QC failure. Results don't confirm; both analyses reported. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 21 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 21 of 47 SAMPLE RESULTS - 07 L1654128 DUPMW-10B Collected date/time: 09/07/23 00:00 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/12/2023 01:09 WG2129796 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 09/12/2023 21:55 WG2130299 Barium,Dissolved 0.339 0.00500 1 09/12/2023 21:55 WG2130299 Cadmium,Dissolved ND 0.00200 1 09/12/2023 21:55 WG2130299 Chromium,Dissolved ND 0.0100 1 09/12/2023 21:55 WG2130299 Iron,Dissolved ND 0.100 1 09/12/2023 21:55 WG2130299 Lead,Dissolved ND 0.00600 1 09/12/2023 21:55 WG2130299 Manganese,Dissolved 0.477 0.0100 1 09/12/2023 21:55 WG2130299 Selenium,Dissolved ND 0.0100 1 09/12/2023 21:55 WG2130299 Silver,Dissolved ND 0.00500 1 09/12/2023 21:55 WG2130299 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/11/2023 21:01 WG2129755 Acrolein ND 0.0500 1 09/11/2023 21:01 WG2129755 Acrylonitrile ND 0.0100 1 09/11/2023 21:01 WG2129755 Benzene ND 0.00100 1 09/11/2023 21:01 WG2129755 Bromobenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 Bromodichloromethane ND 0.00100 1 09/11/2023 21:01 WG2129755 Bromoform ND 0.00100 1 09/11/2023 21:01 WG2129755 Bromomethane ND 0.00500 1 09/11/2023 21:01 WG2129755 n-Butylbenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 sec-Butylbenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 tert-Butylbenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 Carbon tetrachloride ND 0.00100 1 09/11/2023 21:01 WG2129755 Chlorobenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 Chlorodibromomethane ND 0.00100 1 09/11/2023 21:01 WG2129755 Chloroethane ND 0.00500 1 09/11/2023 21:01 WG2129755 Chloroform ND 0.00500 1 09/11/2023 21:01 WG2129755 Chloromethane ND 0.00250 1 09/11/2023 21:01 WG2129755 2-Chlorotoluene ND 0.00100 1 09/11/2023 21:01 WG2129755 4-Chlorotoluene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/11/2023 21:01 WG2129755 1,2-Dibromoethane ND 0.00100 1 09/11/2023 21:01 WG2129755 Dibromomethane ND 0.00100 1 09/11/2023 21:01 WG2129755 1,2-Dichlorobenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,3-Dichlorobenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,4-Dichlorobenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 Dichlorodifluoromethane ND 0.00500 1 09/11/2023 21:01 WG2129755 1,1-Dichloroethane 0.00445 0.00100 1 09/11/2023 21:01 WG2129755 1,2-Dichloroethane ND 0.00100 1 09/11/2023 21:01 WG2129755 1,1-Dichloroethene 0.0357 0.00100 1 09/11/2023 21:01 WG2129755 cis-1,2-Dichloroethene ND 0.00100 1 09/11/2023 21:01 WG2129755 trans-1,2-Dichloroethene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,2-Dichloropropane ND 0.00100 1 09/11/2023 21:01 WG2129755 1,1-Dichloropropene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,3-Dichloropropane ND 0.00100 1 09/11/2023 21:01 WG2129755 cis-1,3-Dichloropropene ND 0.00100 1 09/11/2023 21:01 WG2129755 trans-1,3-Dichloropropene ND 0.00100 1 09/11/2023 21:01 WG2129755 2,2-Dichloropropane ND 0.00100 1 09/11/2023 21:01 WG2129755 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 22 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 22 of 47 SAMPLE RESULTS - 07 L1654128 DUPMW-10B Collected date/time: 09/07/23 00:00 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/11/2023 21:01 WG2129755 Ethylbenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 Hexachloro-1,3-butadiene ND 0.00100 1 09/11/2023 21:01 WG2129755 Isopropylbenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 p-Isopropyltoluene ND 0.00100 1 09/11/2023 21:01 WG2129755 2-Butanone (MEK)ND 0.0100 1 09/11/2023 21:01 WG2129755 Methylene Chloride ND 0.00500 1 09/11/2023 21:01 WG2129755 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/11/2023 21:01 WG2129755 Methyl tert-butyl ether ND 0.00100 1 09/11/2023 21:01 WG2129755 Naphthalene ND 0.00500 1 09/11/2023 21:01 WG2129755 n-Propylbenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 Styrene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/11/2023 21:01 WG2129755 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/11/2023 21:01 WG2129755 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/11/2023 21:01 WG2129755 Tetrachloroethene ND 0.00100 1 09/11/2023 21:01 WG2129755 Toluene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,2,3-Trichlorobenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,2,4-Trichlorobenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,1,1-Trichloroethane ND 0.00100 1 09/11/2023 21:01 WG2129755 1,1,2-Trichloroethane ND 0.00100 1 09/11/2023 21:01 WG2129755 Trichloroethene ND 0.00100 1 09/11/2023 21:01 WG2129755 Trichlorofluoromethane ND 0.00500 1 09/11/2023 21:01 WG2129755 1,2,3-Trichloropropane ND 0.00250 1 09/11/2023 21:01 WG2129755 1,2,4-Trimethylbenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,2,3-Trimethylbenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,3,5-Trimethylbenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 Vinyl chloride ND 0.00100 1 09/11/2023 21:01 WG2129755 Xylenes, Total ND 0.00300 1 09/11/2023 21:01 WG2129755 (S) Toluene-d8 103 80.0-120 09/11/2023 21:01 WG2129755 (S) 4-Bromofluorobenzene 101 77.0-126 09/11/2023 21:01 WG2129755 (S) 1,2-Dichloroethane-d4 101 70.0-130 09/11/2023 21:01 WG2129755 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/15/2023 13:22 WG2130427 Acenaphthylene ND 0.00100 1 09/15/2023 13:22 WG2130427 Anthracene ND 0.00100 1 09/15/2023 13:22 WG2130427 Benzidine ND J4 0.0100 1 09/15/2023 13:22 WG2130427 Benzo(a)anthracene ND 0.00100 1 09/15/2023 13:22 WG2130427 Benzo(b)fluoranthene ND 0.00100 1 09/15/2023 13:22 WG2130427 Benzo(k)fluoranthene ND 0.00100 1 09/15/2023 13:22 WG2130427 Benzo(g,h,i)perylene ND 0.00100 1 09/15/2023 13:22 WG2130427 Benzo(a)pyrene ND 0.00100 1 09/15/2023 13:22 WG2130427 Bis(2-chlorethoxy)methane ND 0.0100 1 09/15/2023 13:22 WG2130427 Bis(2-chloroethyl)ether ND 0.0100 1 09/15/2023 13:22 WG2130427 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/15/2023 13:22 WG2130427 4-Bromophenyl-phenylether ND 0.0100 1 09/15/2023 13:22 WG2130427 2-Chloronaphthalene ND 0.00100 1 09/15/2023 13:22 WG2130427 4-Chlorophenyl-phenylether ND 0.0100 1 09/15/2023 13:22 WG2130427 Chrysene ND 0.00100 1 09/15/2023 13:22 WG2130427 Dibenz(a,h)anthracene ND 0.00100 1 09/15/2023 13:22 WG2130427 1,2-Dichlorobenzene ND 0.0100 1 09/15/2023 13:22 WG2130427 1,3-Dichlorobenzene ND 0.0100 1 09/15/2023 13:22 WG2130427 1,4-Dichlorobenzene ND 0.0100 1 09/15/2023 13:22 WG2130427 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 23 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 23 of 47 SAMPLE RESULTS - 07 L1654128 DUPMW-10B Collected date/time: 09/07/23 00:00 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/15/2023 13:22 WG2130427 2,4-Dinitrotoluene ND 0.0100 1 09/15/2023 13:22 WG2130427 2,6-Dinitrotoluene ND 0.0100 1 09/15/2023 13:22 WG2130427 Fluoranthene ND 0.00100 1 09/15/2023 13:22 WG2130427 Fluorene ND 0.00100 1 09/15/2023 13:22 WG2130427 Hexachlorobenzene ND 0.00100 1 09/15/2023 13:22 WG2130427 Hexachloro-1,3-butadiene ND 0.0100 1 09/15/2023 13:22 WG2130427 Hexachlorocyclopentadiene ND 0.0100 1 09/15/2023 13:22 WG2130427 Hexachloroethane ND 0.0100 1 09/15/2023 13:22 WG2130427 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/15/2023 13:22 WG2130427 Isophorone ND 0.0100 1 09/15/2023 13:22 WG2130427 Naphthalene ND 0.00100 1 09/15/2023 13:22 WG2130427 Nitrobenzene ND 0.0100 1 09/15/2023 13:22 WG2130427 n-Nitrosodimethylamine ND 0.0100 1 09/15/2023 13:22 WG2130427 n-Nitrosodiphenylamine ND 0.0100 1 09/15/2023 13:22 WG2130427 n-Nitrosodi-n-propylamine ND 0.0100 1 09/15/2023 13:22 WG2130427 Phenanthrene ND 0.00100 1 09/15/2023 13:22 WG2130427 Benzylbutyl phthalate ND 0.00300 1 09/15/2023 13:22 WG2130427 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/15/2023 13:22 WG2130427 Di-n-butyl phthalate ND 0.00300 1 09/15/2023 13:22 WG2130427 Diethyl phthalate ND 0.00300 1 09/15/2023 13:22 WG2130427 Dimethyl phthalate ND 0.00300 1 09/15/2023 13:22 WG2130427 Di-n-octyl phthalate ND 0.00300 1 09/15/2023 13:22 WG2130427 Pyrene ND 0.00100 1 09/15/2023 13:22 WG2130427 1,2,4-Trichlorobenzene ND 0.0100 1 09/15/2023 13:22 WG2130427 4-Chloro-3-methylphenol ND J4 0.0100 1 09/15/2023 13:22 WG2130427 2-Chlorophenol ND 0.0100 1 09/15/2023 13:22 WG2130427 2,4-Dichlorophenol ND J4 0.0100 1 09/15/2023 13:22 WG2130427 2,4-Dimethylphenol ND 0.0100 1 09/15/2023 13:22 WG2130427 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/15/2023 13:22 WG2130427 2,4-Dinitrophenol ND 0.0100 1 09/15/2023 13:22 WG2130427 2-Nitrophenol ND 0.0100 1 09/15/2023 13:22 WG2130427 4-Nitrophenol ND 0.0100 1 09/15/2023 13:22 WG2130427 Pentachlorophenol ND 0.0100 1 09/15/2023 13:22 WG2130427 Phenol ND 0.0100 1 09/15/2023 13:22 WG2130427 2,4,6-Trichlorophenol ND 0.0100 1 09/15/2023 13:22 WG2130427 (S) 2-Fluorophenol 25.8 10.0-120 09/15/2023 13:22 WG2130427 (S) Phenol-d5 18.6 10.0-120 09/15/2023 13:22 WG2130427 (S) Nitrobenzene-d5 57.5 10.0-127 09/15/2023 13:22 WG2130427 (S) 2-Fluorobiphenyl 62.8 10.0-130 09/15/2023 13:22 WG2130427 (S) 2,4,6-Tribromophenol 65.5 10.0-155 09/15/2023 13:22 WG2130427 (S) p-Terphenyl-d14 64.9 10.0-128 09/15/2023 13:22 WG2130427 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.0119 B 0.000408 1.02 09/14/2023 06:44 WG2130432 1,4-Dioxane 0.0247 B Q 0.000400 1 09/16/2023 01:51 WG2132810 (S) Nitrobenzene-d5 44.0 10.0-120 09/14/2023 06:44 WG2130432 (S) Nitrobenzene-d5 48.8 10.0-120 09/16/2023 01:51 WG2132810 Sample Narrative: L1654128-07 WG2130432, WG2132810: Duplicate Analysis performed due to QC failure. Results don't confirm; both analyses reported. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 24 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 24 of 47 QUALITY CONTROL SUMMARYWG2129692 Mercury by Method 7470A L1654128-01,02,03,04 Method Blank (MB) (MB) R3972546-1 09/13/23 11:54 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Mercury,Dissolved U 0.000100 0.000200 Laboratory Control Sample (LCS) (LCS) R3972546-2 09/13/23 11:57 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Mercury,Dissolved 0.00300 0.00289 96.5 80.0-120 L1653505-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653505-01 09/13/23 11:59 • (MS) R3972546-3 09/13/23 12:01 • (MSD) R3972546-4 09/13/23 12:04 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Mercury,Dissolved 0.00300 ND 0.00200 0.00192 66.5 63.9 1 75.0-125 J6 J6 4.01 20 L1653881-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653881-03 09/13/23 12:06 • (MS) R3972546-5 09/13/23 12:08 • (MSD) R3972546-6 09/13/23 12:15 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Mercury,Dissolved 0.00300 ND 0.00303 0.00300 101 100 1 75.0-125 0.960 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 25 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 25 of 47 QUALITY CONTROL SUMMARYWG2129796 Mercury by Method 7470A L1654128-05,06,07 Method Blank (MB) (MB) R3971741-1 09/12/23 00:36 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Mercury,Dissolved U 0.000100 0.000200 Laboratory Control Sample (LCS) (LCS) R3971741-2 09/12/23 00:38 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Mercury,Dissolved 0.00300 0.00277 92.3 80.0-120 L1652460-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1652460-03 09/12/23 00:40 • (MS) R3971741-3 09/12/23 00:43 • (MSD) R3971741-4 09/12/23 00:45 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Mercury,Dissolved 0.00300 ND 0.00289 0.00286 96.4 95.2 1 75.0-125 1.28 20 L1653889-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653889-03 09/12/23 00:48 • (MS) R3971741-5 09/12/23 00:50 • (MSD) R3971741-6 09/12/23 00:52 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Mercury,Dissolved 0.00300 ND 0.00259 0.00254 86.5 84.7 1 75.0-125 2.14 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 26 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 26 of 47 QUALITY CONTROL SUMMARYWG2130299 Metals (ICP) by Method 6010B L1654128-01,02,03,04,05,06,07 Method Blank (MB) (MB) R3972274-1 09/12/23 20:54 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Arsenic,Dissolved U 0.00440 0.0100 Barium,Dissolved 0.00106 J 0.000736 0.00500 Cadmium,Dissolved U 0.000479 0.00200 Chromium,Dissolved U 0.00140 0.0100 Iron,Dissolved 0.0718 J 0.0180 0.100 Lead,Dissolved 0.00509 J 0.00299 0.00600 Manganese,Dissolved U 0.000934 0.0100 Selenium,Dissolved U 0.00735 0.0100 Silver,Dissolved U 0.00154 0.00500 Laboratory Control Sample (LCS) (LCS) R3972274-2 09/12/23 20:57 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Arsenic,Dissolved 1.00 1.00 100 80.0-120 Barium,Dissolved 1.00 1.03 103 80.0-120 Cadmium,Dissolved 1.00 0.971 97.1 80.0-120 Chromium,Dissolved 1.00 0.986 98.6 80.0-120 Iron,Dissolved 10.0 9.93 99.3 80.0-120 Lead,Dissolved 1.00 0.984 98.4 80.0-120 Manganese,Dissolved 1.00 1.01 101 80.0-120 Selenium,Dissolved 1.00 0.974 97.4 80.0-120 Silver,Dissolved 0.200 0.193 96.4 80.0-120 L1653889-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653889-03 09/12/23 21:00 • (MS) R3972274-4 09/12/23 21:05 • (MSD) R3972274-5 09/12/23 21:08 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Arsenic,Dissolved 1.00 ND 0.999 1.04 99.9 104 1 75.0-125 4.46 20 Barium,Dissolved 1.00 0.0681 1.05 1.10 98.7 103 1 75.0-125 4.40 20 Cadmium,Dissolved 1.00 ND 0.967 1.02 96.7 102 1 75.0-125 4.89 20 Chromium,Dissolved 1.00 ND 0.952 1.00 95.2 100 1 75.0-125 5.22 20 Iron,Dissolved 10.0 ND 9.55 10.0 95.2 99.9 1 75.0-125 4.81 20 Lead,Dissolved 1.00 ND 0.960 0.984 96.0 98.4 1 75.0-125 2.48 20 Manganese,Dissolved 1.00 0.0782 1.05 1.09 96.7 101 1 75.0-125 4.00 20 Selenium,Dissolved 1.00 ND 0.980 1.01 98.0 101 1 75.0-125 3.41 20 Silver,Dissolved 0.200 ND 0.193 0.201 95.7 99.8 1 75.0-125 4.16 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 27 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 27 of 47 QUALITY CONTROL SUMMARYWG2129755 Volatile Organic Compounds (GC/MS) by Method 8260B L1654128-01,02,03,04,05,06,07 Method Blank (MB) (MB) R3973804-2 09/11/23 16:14 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acetone U 0.0113 0.0500 Acrolein U 0.00254 0.0500 Acrylonitrile U 0.000671 0.0100 Benzene U 0.0000941 0.00100 Bromobenzene U 0.000118 0.00100 Bromodichloromethane U 0.000136 0.00100 Bromoform U 0.000129 0.00100 Bromomethane U 0.000605 0.00500 n-Butylbenzene U 0.000157 0.00100 sec-Butylbenzene U 0.000125 0.00100 tert-Butylbenzene U 0.000127 0.00100 Carbon tetrachloride U 0.000128 0.00100 Chlorobenzene U 0.000116 0.00100 Chlorodibromomethane U 0.000140 0.00100 Chloroethane U 0.000192 0.00500 Chloroform U 0.000111 0.00500 Chloromethane U 0.000960 0.00250 2-Chlorotoluene U 0.000106 0.00100 4-Chlorotoluene U 0.000114 0.00100 1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1,2-Dibromoethane U 0.000126 0.00100 Dibromomethane U 0.000122 0.00100 1,2-Dichlorobenzene U 0.000107 0.00100 1,3-Dichlorobenzene U 0.000110 0.00100 1,4-Dichlorobenzene U 0.000120 0.00100 Dichlorodifluoromethane U 0.000374 0.00500 1,1-Dichloroethane U 0.000100 0.00100 1,2-Dichloroethane U 0.0000819 0.00100 1,1-Dichloroethene U 0.000188 0.00100 cis-1,2-Dichloroethene U 0.000126 0.00100 trans-1,2-Dichloroethene U 0.000149 0.00100 1,2-Dichloropropane U 0.000149 0.00100 1,1-Dichloropropene U 0.000142 0.00100 1,3-Dichloropropane U 0.000110 0.00100 cis-1,3-Dichloropropene U 0.000111 0.00100 trans-1,3-Dichloropropene U 0.000118 0.00100 2,2-Dichloropropane U 0.000161 0.00100 Di-isopropyl ether U 0.000105 0.00100 Ethylbenzene U 0.000137 0.00100 Hexachloro-1,3-butadiene U 0.000337 0.00100 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 28 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 28 of 47 QUALITY CONTROL SUMMARYWG2129755 Volatile Organic Compounds (GC/MS) by Method 8260B L1654128-01,02,03,04,05,06,07 Method Blank (MB) (MB) R3973804-2 09/11/23 16:14 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Isopropylbenzene U 0.000105 0.00100 p-Isopropyltoluene U 0.000120 0.00100 2-Butanone (MEK)U 0.00119 0.0100 Methylene Chloride U 0.000430 0.00500 4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100 Methyl tert-butyl ether U 0.000101 0.00100 Naphthalene U 0.00100 0.00500 n-Propylbenzene U 0.0000993 0.00100 Styrene U 0.000118 0.00100 1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 Tetrachloroethene U 0.000300 0.00100 Toluene U 0.000278 0.00100 1,2,3-Trichlorobenzene U 0.000230 0.00100 1,2,4-Trichlorobenzene U 0.000481 0.00100 1,1,1-Trichloroethane U 0.000149 0.00100 1,1,2-Trichloroethane U 0.000158 0.00100 Trichloroethene U 0.000190 0.00100 Trichlorofluoromethane U 0.000160 0.00500 1,2,3-Trichloropropane U 0.000237 0.00250 1,2,4-Trimethylbenzene U 0.000322 0.00100 1,2,3-Trimethylbenzene U 0.000104 0.00100 1,3,5-Trimethylbenzene U 0.000104 0.00100 Vinyl chloride U 0.000234 0.00100 Xylenes, Total U 0.000174 0.00300 (S) Toluene-d8 102 80.0-120 (S) 4-Bromofluorobenzene 103 77.0-126 (S) 1,2-Dichloroethane-d4 101 70.0-130 Laboratory Control Sample (LCS) (LCS) R3973804-1 09/11/23 14:54 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Acetone 0.0250 0.0365 146 19.0-160 Acrolein 0.0250 0.0273 109 10.0-160 Acrylonitrile 0.0250 0.0288 115 55.0-149 Benzene 0.00500 0.00486 97.2 70.0-123 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 29 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 29 of 47 QUALITY CONTROL SUMMARYWG2129755 Volatile Organic Compounds (GC/MS) by Method 8260B L1654128-01,02,03,04,05,06,07 Laboratory Control Sample (LCS) (LCS) R3973804-1 09/11/23 14:54 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Bromobenzene 0.00500 0.00426 85.2 73.0-121 Bromodichloromethane 0.00500 0.00493 98.6 75.0-120 Bromoform 0.00500 0.00465 93.0 68.0-132 Bromomethane 0.00500 0.00430 86.0 10.0-160 n-Butylbenzene 0.00500 0.00449 89.8 73.0-125 sec-Butylbenzene 0.00500 0.00478 95.6 75.0-125 tert-Butylbenzene 0.00500 0.00457 91.4 76.0-124 Carbon tetrachloride 0.00500 0.00532 106 68.0-126 Chlorobenzene 0.00500 0.00492 98.4 80.0-121 Chlorodibromomethane 0.00500 0.00474 94.8 77.0-125 Chloroethane 0.00500 0.00508 102 47.0-150 Chloroform 0.00500 0.00507 101 73.0-120 Chloromethane 0.00500 0.00508 102 41.0-142 2-Chlorotoluene 0.00500 0.00460 92.0 76.0-123 4-Chlorotoluene 0.00500 0.00412 82.4 75.0-122 1,2-Dibromo-3-Chloropropane 0.00500 0.00454 90.8 58.0-134 1,2-Dibromoethane 0.00500 0.00488 97.6 80.0-122 Dibromomethane 0.00500 0.00467 93.4 80.0-120 1,2-Dichlorobenzene 0.00500 0.00452 90.4 79.0-121 1,3-Dichlorobenzene 0.00500 0.00455 91.0 79.0-120 1,4-Dichlorobenzene 0.00500 0.00418 83.6 79.0-120 Dichlorodifluoromethane 0.00500 0.00509 102 51.0-149 1,1-Dichloroethane 0.00500 0.00496 99.2 70.0-126 1,2-Dichloroethane 0.00500 0.00470 94.0 70.0-128 1,1-Dichloroethene 0.00500 0.00541 108 71.0-124 cis-1,2-Dichloroethene 0.00500 0.00498 99.6 73.0-120 trans-1,2-Dichloroethene 0.00500 0.00502 100 73.0-120 1,2-Dichloropropane 0.00500 0.00492 98.4 77.0-125 1,1-Dichloropropene 0.00500 0.00506 101 74.0-126 1,3-Dichloropropane 0.00500 0.00472 94.4 80.0-120 cis-1,3-Dichloropropene 0.00500 0.00448 89.6 80.0-123 trans-1,3-Dichloropropene 0.00500 0.00448 89.6 78.0-124 2,2-Dichloropropane 0.00500 0.00480 96.0 58.0-130 Di-isopropyl ether 0.00500 0.00485 97.0 58.0-138 Ethylbenzene 0.00500 0.00490 98.0 79.0-123 Hexachloro-1,3-butadiene 0.00500 0.00461 92.2 54.0-138 Isopropylbenzene 0.00500 0.00510 102 76.0-127 p-Isopropyltoluene 0.00500 0.00461 92.2 76.0-125 2-Butanone (MEK)0.0250 0.0253 101 44.0-160 Methylene Chloride 0.00500 0.00456 91.2 67.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 30 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 30 of 47 QUALITY CONTROL SUMMARYWG2129755 Volatile Organic Compounds (GC/MS) by Method 8260B L1654128-01,02,03,04,05,06,07 Laboratory Control Sample (LCS) (LCS) R3973804-1 09/11/23 14:54 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 4-Methyl-2-pentanone (MIBK)0.0250 0.0263 105 68.0-142 Methyl tert-butyl ether 0.00500 0.00504 101 68.0-125 Naphthalene 0.00500 0.00417 83.4 54.0-135 n-Propylbenzene 0.00500 0.00435 87.0 77.0-124 Styrene 0.00500 0.00477 95.4 73.0-130 1,1,1,2-Tetrachloroethane 0.00500 0.00494 98.8 75.0-125 1,1,2,2-Tetrachloroethane 0.00500 0.00435 87.0 65.0-130 1,1,2-Trichlorotrifluoroethane 0.00500 0.00516 103 69.0-132 Tetrachloroethene 0.00500 0.00513 103 72.0-132 Toluene 0.00500 0.00474 94.8 79.0-120 1,2,3-Trichlorobenzene 0.00500 0.00447 89.4 50.0-138 1,2,4-Trichlorobenzene 0.00500 0.00446 89.2 57.0-137 1,1,1-Trichloroethane 0.00500 0.00536 107 73.0-124 1,1,2-Trichloroethane 0.00500 0.00477 95.4 80.0-120 Trichloroethene 0.00500 0.00504 101 78.0-124 Trichlorofluoromethane 0.00500 0.00512 102 59.0-147 1,2,3-Trichloropropane 0.00500 0.00445 89.0 73.0-130 1,2,4-Trimethylbenzene 0.00500 0.00439 87.8 76.0-121 1,2,3-Trimethylbenzene 0.00500 0.00439 87.8 77.0-120 1,3,5-Trimethylbenzene 0.00500 0.00416 83.2 76.0-122 Vinyl chloride 0.00500 0.00556 111 67.0-131 Xylenes, Total 0.0150 0.0147 98.0 79.0-123 (S) Toluene-d8 100 80.0-120 (S) 4-Bromofluorobenzene 106 77.0-126 (S) 1,2-Dichloroethane-d4 104 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 31 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 31 of 47 QUALITY CONTROL SUMMARYWG2133344 Volatile Organic Compounds (GC/MS) by Method 8260B L1654128-02,03,04,05,06 Method Blank (MB) (MB) R3974448-3 09/15/23 20:27 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Chloroethane U 0.000192 0.00500 1,1-Dichloroethane U 0.000100 0.00100 1,1-Dichloroethene U 0.000188 0.00100 (S) Toluene-d8 113 80.0-120 (S) 4-Bromofluorobenzene 102 77.0-126 (S) 1,2-Dichloroethane-d4 107 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3974448-1 09/15/23 19:01 • (LCSD) R3974448-2 09/15/23 19:23 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Chloroethane 0.00500 0.00564 0.00555 113 111 47.0-150 1.61 20 1,1-Dichloroethane 0.00500 0.00460 0.00473 92.0 94.6 70.0-126 2.79 20 1,1-Dichloroethene 0.00500 0.00467 0.00471 93.4 94.2 71.0-124 0.853 20 (S) Toluene-d8 109 111 80.0-120 (S) 4-Bromofluorobenzene 104 105 77.0-126 (S) 1,2-Dichloroethane-d4 108 105 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 32 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 32 of 47 QUALITY CONTROL SUMMARYWG2129851 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1654128-02,03,04,05 Method Blank (MB) (MB) R3973029-3 09/13/23 05:51 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acenaphthene U 0.0000886 0.00100 Acenaphthylene U 0.0000921 0.00100 Anthracene U 0.0000804 0.00100 Benzidine U 0.00374 0.0100 Benzo(a)anthracene U 0.000199 0.00100 Benzo(b)fluoranthene U 0.000130 0.00100 Benzo(k)fluoranthene U 0.000120 0.00100 Benzo(g,h,i)perylene U 0.000121 0.00100 Benzo(a)pyrene U 0.0000381 0.00100 Bis(2-chlorethoxy)methane U 0.000116 0.0100 Bis(2-chloroethyl)ether U 0.000137 0.0100 2,2-Oxybis(1-Chloropropane)U 0.000210 0.0100 4-Bromophenyl-phenylether U 0.0000877 0.0100 2-Chloronaphthalene U 0.0000648 0.00100 4-Chlorophenyl-phenylether U 0.0000926 0.0100 Chrysene U 0.000130 0.00100 Dibenz(a,h)anthracene U 0.0000644 0.00100 1,2-Dichlorobenzene U 0.0000713 0.0100 1,3-Dichlorobenzene U 0.000132 0.0100 1,4-Dichlorobenzene U 0.0000942 0.0100 3,3-Dichlorobenzidine U 0.000212 0.0100 2,4-Dinitrotoluene U 0.0000983 0.0100 2,6-Dinitrotoluene U 0.000250 0.0100 Fluoranthene U 0.000102 0.00100 Fluorene U 0.0000844 0.00100 Hexachlorobenzene U 0.0000755 0.00100 Hexachloro-1,3-butadiene U 0.0000968 0.0100 Hexachlorocyclopentadiene U 0.0000598 0.0100 Hexachloroethane U 0.000127 0.0100 Indeno(1,2,3-cd)pyrene U 0.000279 0.00100 Isophorone U 0.000143 0.0100 Naphthalene U 0.000159 0.00100 Nitrobenzene U 0.000297 0.0100 n-Nitrosodimethylamine U 0.000998 0.0100 n-Nitrosodiphenylamine U 0.00237 0.0100 n-Nitrosodi-n-propylamine U 0.000261 0.0100 Phenanthrene U 0.000112 0.00100 Benzylbutyl phthalate U 0.000765 0.00300 Bis(2-ethylhexyl)phthalate U 0.000895 0.00300 Di-n-butyl phthalate U 0.000453 0.00300 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 33 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 33 of 47 QUALITY CONTROL SUMMARYWG2129851 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1654128-02,03,04,05 Method Blank (MB) (MB) R3973029-3 09/13/23 05:51 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Diethyl phthalate U 0.000287 0.00300 Dimethyl phthalate U 0.000260 0.00300 Di-n-octyl phthalate U 0.000932 0.00300 Pyrene U 0.000107 0.00100 1,2,4-Trichlorobenzene U 0.0000698 0.0100 4-Chloro-3-methylphenol U 0.000131 0.0100 2-Chlorophenol U 0.000133 0.0100 2,4-Dichlorophenol U 0.000102 0.0100 2,4-Dimethylphenol U 0.0000636 0.0100 4,6-Dinitro-2-methylphenol U 0.00112 0.0100 2,4-Dinitrophenol U 0.00593 0.0100 2-Nitrophenol U 0.000117 0.0100 4-Nitrophenol U 0.000143 0.0100 Pentachlorophenol U 0.000313 0.0100 Phenol U 0.00433 0.0100 2,4,6-Trichlorophenol U 0.000100 0.0100 (S) 2-Fluorophenol 27.6 10.0-120 (S) Phenol-d5 20.1 10.0-120 (S) Nitrobenzene-d5 55.6 10.0-127 (S) 2-Fluorobiphenyl 57.0 10.0-130 (S) 2,4,6-Tribromophenol 50.5 10.0-155 (S) p-Terphenyl-d14 72.9 10.0-128 Laboratory Control Sample (LCS) (LCS) R3973029-1 09/13/23 05:08 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Acenaphthene 0.0500 0.0294 58.8 41.0-120 Acenaphthylene 0.0500 0.0292 58.4 43.0-120 Anthracene 0.0500 0.0307 61.4 45.0-120 Benzidine 0.100 0.00396 3.96 10.0-120 J4 Benzo(a)anthracene 0.0500 0.0299 59.8 47.0-120 Benzo(b)fluoranthene 0.0500 0.0301 60.2 46.0-120 Benzo(k)fluoranthene 0.0500 0.0281 56.2 46.0-120 Benzo(g,h,i)perylene 0.0500 0.0300 60.0 48.0-121 Benzo(a)pyrene 0.0500 0.0283 56.6 47.0-120 Bis(2-chlorethoxy)methane 0.0500 0.0269 53.8 33.0-120 Bis(2-chloroethyl)ether 0.0500 0.0273 54.6 23.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 34 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 34 of 47 QUALITY CONTROL SUMMARYWG2129851 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1654128-02,03,04,05 Laboratory Control Sample (LCS) (LCS) R3973029-1 09/13/23 05:08 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2,2-Oxybis(1-Chloropropane)0.0500 0.0250 50.0 28.0-120 4-Bromophenyl-phenylether 0.0500 0.0317 63.4 45.0-120 2-Chloronaphthalene 0.0500 0.0277 55.4 37.0-120 4-Chlorophenyl-phenylether 0.0500 0.0272 54.4 44.0-120 Chrysene 0.0500 0.0293 58.6 48.0-120 Dibenz(a,h)anthracene 0.0500 0.0295 59.0 47.0-120 1,2-Dichlorobenzene 0.0500 0.0206 41.2 20.0-120 1,3-Dichlorobenzene 0.0500 0.0199 39.8 17.0-120 1,4-Dichlorobenzene 0.0500 0.0210 42.0 18.0-120 3,3-Dichlorobenzidine 0.100 0.0503 50.3 44.0-120 2,4-Dinitrotoluene 0.0500 0.0305 61.0 49.0-124 2,6-Dinitrotoluene 0.0500 0.0310 62.0 46.0-120 Fluoranthene 0.0500 0.0289 57.8 51.0-120 Fluorene 0.0500 0.0281 56.2 47.0-120 Hexachlorobenzene 0.0500 0.0296 59.2 44.0-120 Hexachloro-1,3-butadiene 0.0500 0.0170 34.0 19.0-120 Hexachlorocyclopentadiene 0.0500 0.0119 23.8 15.0-120 Hexachloroethane 0.0500 0.0189 37.8 15.0-120 Indeno(1,2,3-cd)pyrene 0.0500 0.0265 53.0 49.0-122 Isophorone 0.0500 0.0265 53.0 36.0-120 Naphthalene 0.0500 0.0222 44.4 27.0-120 Nitrobenzene 0.0500 0.0246 49.2 27.0-120 n-Nitrosodimethylamine 0.0500 0.0176 35.2 10.0-120 n-Nitrosodiphenylamine 0.0500 0.0310 62.0 47.0-120 n-Nitrosodi-n-propylamine 0.0500 0.0291 58.2 31.0-120 Phenanthrene 0.0500 0.0307 61.4 46.0-120 Benzylbutyl phthalate 0.0500 0.0331 66.2 43.0-121 Bis(2-ethylhexyl)phthalate 0.0500 0.0290 58.0 43.0-122 Di-n-butyl phthalate 0.0500 0.0332 66.4 49.0-121 Diethyl phthalate 0.0500 0.0298 59.6 48.0-122 Dimethyl phthalate 0.0500 0.0296 59.2 48.0-120 Di-n-octyl phthalate 0.0500 0.0284 56.8 42.0-125 Pyrene 0.0500 0.0317 63.4 47.0-120 1,2,4-Trichlorobenzene 0.0500 0.0181 36.2 24.0-120 4-Chloro-3-methylphenol 0.0500 0.0205 41.0 40.0-120 2-Chlorophenol 0.0500 0.0177 35.4 25.0-120 2,4-Dichlorophenol 0.0500 0.0186 37.2 36.0-120 2,4-Dimethylphenol 0.0500 0.0225 45.0 33.0-120 4,6-Dinitro-2-methylphenol 0.0500 0.0343 68.6 38.0-138 2,4-Dinitrophenol 0.0500 0.0294 58.8 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 35 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 35 of 47 QUALITY CONTROL SUMMARYWG2129851 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1654128-02,03,04,05 Laboratory Control Sample (LCS) (LCS) R3973029-1 09/13/23 05:08 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2-Nitrophenol 0.0500 0.0255 51.0 31.0-120 4-Nitrophenol 0.0500 0.0118 23.6 10.0-120 Pentachlorophenol 0.0500 0.0225 45.0 23.0-120 Phenol 0.0500 0.0100 20.0 10.0-120 2,4,6-Trichlorophenol 0.0500 0.0274 54.8 42.0-120 (S) 2-Fluorophenol 24.5 10.0-120 (S) Phenol-d5 19.2 10.0-120 (S) Nitrobenzene-d5 48.0 10.0-127 (S) 2-Fluorobiphenyl 58.1 10.0-130 (S) 2,4,6-Tribromophenol 61.0 10.0-155 (S) p-Terphenyl-d14 62.5 10.0-128 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 36 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 36 of 47 QUALITY CONTROL SUMMARYWG2130427 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1654128-07 Method Blank (MB) (MB) R3973625-2 09/15/23 11:13 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acenaphthene U 0.0000886 0.00100 Acenaphthylene U 0.0000921 0.00100 Anthracene U 0.0000804 0.00100 Benzidine U 0.00374 0.0100 Benzo(a)anthracene U 0.000199 0.00100 Benzo(b)fluoranthene U 0.000130 0.00100 Benzo(k)fluoranthene U 0.000120 0.00100 Benzo(g,h,i)perylene U 0.000121 0.00100 Benzo(a)pyrene U 0.0000381 0.00100 Bis(2-chlorethoxy)methane U 0.000116 0.0100 Bis(2-chloroethyl)ether U 0.000137 0.0100 2,2-Oxybis(1-Chloropropane)U 0.000210 0.0100 4-Bromophenyl-phenylether U 0.0000877 0.0100 2-Chloronaphthalene U 0.0000648 0.00100 4-Chlorophenyl-phenylether U 0.0000926 0.0100 Chrysene U 0.000130 0.00100 Dibenz(a,h)anthracene U 0.0000644 0.00100 1,2-Dichlorobenzene U 0.0000713 0.0100 1,3-Dichlorobenzene U 0.000132 0.0100 1,4-Dichlorobenzene U 0.0000942 0.0100 3,3-Dichlorobenzidine U 0.000212 0.0100 2,4-Dinitrotoluene U 0.0000983 0.0100 2,6-Dinitrotoluene U 0.000250 0.0100 Fluoranthene U 0.000102 0.00100 Fluorene U 0.0000844 0.00100 Hexachlorobenzene U 0.0000755 0.00100 Hexachloro-1,3-butadiene U 0.0000968 0.0100 Hexachlorocyclopentadiene U 0.0000598 0.0100 Hexachloroethane U 0.000127 0.0100 Indeno(1,2,3-cd)pyrene U 0.000279 0.00100 Isophorone U 0.000143 0.0100 Naphthalene 0.000445 J 0.000159 0.00100 Nitrobenzene U 0.000297 0.0100 n-Nitrosodimethylamine U 0.000998 0.0100 n-Nitrosodiphenylamine U 0.00237 0.0100 n-Nitrosodi-n-propylamine U 0.000261 0.0100 Phenanthrene U 0.000112 0.00100 Benzylbutyl phthalate U 0.000765 0.00300 Bis(2-ethylhexyl)phthalate U 0.000895 0.00300 Di-n-butyl phthalate U 0.000453 0.00300 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 37 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 37 of 47 QUALITY CONTROL SUMMARYWG2130427 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1654128-07 Method Blank (MB) (MB) R3973625-2 09/15/23 11:13 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Diethyl phthalate U 0.000287 0.00300 Dimethyl phthalate U 0.000260 0.00300 Di-n-octyl phthalate U 0.000932 0.00300 Pyrene U 0.000107 0.00100 1,2,4-Trichlorobenzene U 0.0000698 0.0100 4-Chloro-3-methylphenol U 0.000131 0.0100 2-Chlorophenol U 0.000133 0.0100 2,4-Dichlorophenol U 0.000102 0.0100 2,4-Dimethylphenol U 0.0000636 0.0100 4,6-Dinitro-2-methylphenol U 0.00112 0.0100 2,4-Dinitrophenol U 0.00593 0.0100 2-Nitrophenol U 0.000117 0.0100 4-Nitrophenol U 0.000143 0.0100 Pentachlorophenol U 0.000313 0.0100 Phenol U 0.00433 0.0100 2,4,6-Trichlorophenol U 0.000100 0.0100 (S) 2-Fluorophenol 23.1 10.0-120 (S) Phenol-d5 14.8 10.0-120 (S) Nitrobenzene-d5 37.8 10.0-127 (S) 2-Fluorobiphenyl 43.5 10.0-130 (S) 2,4,6-Tribromophenol 41.5 10.0-155 (S) p-Terphenyl-d14 59.3 10.0-128 Laboratory Control Sample (LCS) (LCS) R3973625-1 09/15/23 10:52 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Acenaphthene 0.0500 0.0277 55.4 41.0-120 Acenaphthylene 0.0500 0.0278 55.6 43.0-120 Anthracene 0.0500 0.0325 65.0 45.0-120 Benzidine 0.100 0.00731 7.31 10.0-120 J4 Benzo(a)anthracene 0.0500 0.0366 73.2 47.0-120 Benzo(b)fluoranthene 0.0500 0.0395 79.0 46.0-120 Benzo(k)fluoranthene 0.0500 0.0384 76.8 46.0-120 Benzo(g,h,i)perylene 0.0500 0.0402 80.4 48.0-121 Benzo(a)pyrene 0.0500 0.0343 68.6 47.0-120 Bis(2-chlorethoxy)methane 0.0500 0.0249 49.8 33.0-120 Bis(2-chloroethyl)ether 0.0500 0.0237 47.4 23.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 38 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 38 of 47 QUALITY CONTROL SUMMARYWG2130427 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1654128-07 Laboratory Control Sample (LCS) (LCS) R3973625-1 09/15/23 10:52 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2,2-Oxybis(1-Chloropropane)0.0500 0.0236 47.2 28.0-120 4-Bromophenyl-phenylether 0.0500 0.0291 58.2 45.0-120 2-Chloronaphthalene 0.0500 0.0251 50.2 37.0-120 4-Chlorophenyl-phenylether 0.0500 0.0291 58.2 44.0-120 Chrysene 0.0500 0.0363 72.6 48.0-120 Dibenz(a,h)anthracene 0.0500 0.0340 68.0 47.0-120 1,2-Dichlorobenzene 0.0500 0.0195 39.0 20.0-120 1,3-Dichlorobenzene 0.0500 0.0181 36.2 17.0-120 1,4-Dichlorobenzene 0.0500 0.0186 37.2 18.0-120 3,3-Dichlorobenzidine 0.100 0.0606 60.6 44.0-120 2,4-Dinitrotoluene 0.0500 0.0372 74.4 49.0-124 2,6-Dinitrotoluene 0.0500 0.0330 66.0 46.0-120 Fluoranthene 0.0500 0.0364 72.8 51.0-120 Fluorene 0.0500 0.0311 62.2 47.0-120 Hexachlorobenzene 0.0500 0.0297 59.4 44.0-120 Hexachloro-1,3-butadiene 0.0500 0.0144 28.8 19.0-120 Hexachlorocyclopentadiene 0.0500 0.0123 24.6 15.0-120 Hexachloroethane 0.0500 0.0161 32.2 15.0-120 Indeno(1,2,3-cd)pyrene 0.0500 0.0310 62.0 49.0-122 Isophorone 0.0500 0.0257 51.4 36.0-120 Naphthalene 0.0500 0.0210 42.0 27.0-120 Nitrobenzene 0.0500 0.0211 42.2 27.0-120 n-Nitrosodimethylamine 0.0500 0.0174 34.8 10.0-120 n-Nitrosodiphenylamine 0.0500 0.0301 60.2 47.0-120 n-Nitrosodi-n-propylamine 0.0500 0.0265 53.0 31.0-120 Phenanthrene 0.0500 0.0316 63.2 46.0-120 Benzylbutyl phthalate 0.0500 0.0385 77.0 43.0-121 Bis(2-ethylhexyl)phthalate 0.0500 0.0394 78.8 43.0-122 Di-n-butyl phthalate 0.0500 0.0383 76.6 49.0-121 Diethyl phthalate 0.0500 0.0363 72.6 48.0-122 Dimethyl phthalate 0.0500 0.0334 66.8 48.0-120 Di-n-octyl phthalate 0.0500 0.0401 80.2 42.0-125 Pyrene 0.0500 0.0380 76.0 47.0-120 1,2,4-Trichlorobenzene 0.0500 0.0183 36.6 24.0-120 4-Chloro-3-methylphenol 0.0500 0.0186 37.2 40.0-120 J4 2-Chlorophenol 0.0500 0.0129 25.8 25.0-120 2,4-Dichlorophenol 0.0500 0.0170 34.0 36.0-120 J4 2,4-Dimethylphenol 0.0500 0.0174 34.8 33.0-120 4,6-Dinitro-2-methylphenol 0.0500 0.0326 65.2 38.0-138 2,4-Dinitrophenol 0.0500 0.0250 50.0 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 39 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 39 of 47 QUALITY CONTROL SUMMARYWG2130427 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1654128-07 Laboratory Control Sample (LCS) (LCS) R3973625-1 09/15/23 10:52 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2-Nitrophenol 0.0500 0.0192 38.4 31.0-120 4-Nitrophenol 0.0500 0.0106 21.2 10.0-120 Pentachlorophenol 0.0500 0.0205 41.0 23.0-120 Phenol 0.0500 0.00759 15.2 10.0-120 2,4,6-Trichlorophenol 0.0500 0.0240 48.0 42.0-120 (S) 2-Fluorophenol 19.2 10.0-120 (S) Phenol-d5 14.7 10.0-120 (S) Nitrobenzene-d5 41.4 10.0-127 (S) 2-Fluorobiphenyl 51.7 10.0-130 (S) 2,4,6-Tribromophenol 60.5 10.0-155 (S) p-Terphenyl-d14 74.1 10.0-128 L1653889-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653889-03 09/15/23 12:17 • (MS) R3973625-3 09/15/23 12:39 • (MSD) R3973625-4 09/15/23 13:00 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Acenaphthene 0.0455 ND 0.0242 0.0257 53.2 56.5 1 28.0-120 6.01 25 Acenaphthylene 0.0455 ND 0.0248 0.0245 54.5 53.8 1 31.0-121 1.22 25 Anthracene 0.0455 ND 0.0272 0.0240 59.8 52.7 1 36.0-120 12.5 23 Benzidine 0.0910 ND ND ND 6.95 7.18 1 10.0-120 J6 J6 3.27 37 Benzo(a)anthracene 0.0455 ND 0.0251 0.0191 55.2 42.0 1 39.0-120 J3 27.1 23 Benzo(b)fluoranthene 0.0455 ND 0.0261 0.0189 57.4 41.5 1 37.0-120 J3 32.0 23 Benzo(k)fluoranthene 0.0455 ND 0.0251 0.0179 55.2 39.3 1 37.0-120 J3 33.5 26 Benzo(g,h,i)perylene 0.0455 ND 0.0253 0.0181 55.6 39.8 1 37.0-123 J3 33.2 25 Benzo(a)pyrene 0.0455 ND 0.0222 0.0161 48.8 35.4 1 37.0-120 J3 J6 31.9 24 Bis(2-chlorethoxy)methane 0.0455 ND 0.0197 0.0212 43.3 46.6 1 17.0-120 7.33 31 Bis(2-chloroethyl)ether 0.0455 ND 0.0192 0.0210 42.2 46.2 1 14.0-120 8.96 33 2,2-Oxybis(1-Chloropropane)0.0455 ND 0.0210 0.0219 46.2 48.1 1 18.0-120 4.20 34 4-Bromophenyl-phenylether 0.0455 ND 0.0222 0.0201 48.8 44.2 1 37.0-120 9.93 24 2-Chloronaphthalene 0.0455 ND 0.0220 0.0222 48.4 48.8 1 29.0-120 0.905 28 4-Chlorophenyl-phenylether 0.0455 ND 0.0244 0.0220 53.6 48.4 1 36.0-120 10.3 23 Chrysene 0.0455 ND 0.0255 0.0188 56.0 41.3 1 38.0-120 J3 30.2 23 Dibenz(a,h)anthracene 0.0455 ND 0.0215 0.0155 47.3 34.1 1 36.0-121 J3 J6 32.4 24 1,2-Dichlorobenzene 0.0455 ND 0.0193 0.0204 42.4 44.8 1 18.0-120 5.54 40 1,3-Dichlorobenzene 0.0455 ND 0.0187 0.0196 41.1 43.1 1 15.0-120 4.70 40 1,4-Dichlorobenzene 0.0455 ND 0.0190 0.0202 41.8 44.4 1 17.0-120 6.12 40 3,3-Dichlorobenzidine 0.0910 ND 0.0496 0.0492 54.5 54.1 1 10.0-134 0.810 30 2,4-Dinitrotoluene 0.0455 ND 0.0347 0.0299 76.3 65.7 1 39.0-125 14.9 25 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 40 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 40 of 47 QUALITY CONTROL SUMMARYWG2130427 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1654128-07 L1653889-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653889-03 09/15/23 12:17 • (MS) R3973625-3 09/15/23 12:39 • (MSD) R3973625-4 09/15/23 13:00 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% 2,6-Dinitrotoluene 0.0455 ND 0.0301 0.0268 66.2 58.9 1 36.0-120 11.6 27 Fluoranthene 0.0455 ND 0.0304 0.0245 66.8 53.8 1 41.0-121 21.5 22 Fluorene 0.0455 ND 0.0260 0.0253 57.1 55.6 1 37.0-120 2.73 24 Hexachlorobenzene 0.0455 ND 0.0201 0.0164 44.2 36.0 1 35.0-122 20.3 24 Hexachloro-1,3-butadiene 0.0455 ND 0.0138 0.0142 30.3 31.2 1 12.0-120 2.86 34 Hexachlorocyclopentadiene 0.0455 ND ND 0.0101 21.8 22.2 1 10.0-120 1.70 33 Hexachloroethane 0.0455 ND 0.0168 0.0179 36.9 39.3 1 10.0-120 6.34 40 Indeno(1,2,3-cd)pyrene 0.0455 ND 0.0198 0.0141 43.5 31.0 1 38.0-125 J3 J6 33.6 24 Isophorone 0.0455 ND 0.0211 0.0217 46.4 47.7 1 21.0-120 2.80 27 Naphthalene 0.0455 ND 0.0207 0.0443 44.4 96.3 1 10.0-120 J3 72.6 31 Nitrobenzene 0.0455 ND 0.0187 0.0199 41.1 43.7 1 12.0-120 6.22 30 n-Nitrosodimethylamine 0.0455 ND 0.0139 0.0145 30.5 31.9 1 10.0-120 4.23 40 n-Nitrosodiphenylamine 0.0455 ND 0.0259 0.0245 56.9 53.8 1 37.0-120 5.56 24 n-Nitrosodi-n-propylamine 0.0455 ND 0.0215 0.0218 47.3 47.9 1 16.0-120 1.39 30 Phenanthrene 0.0455 ND 0.0271 0.0249 59.6 54.7 1 33.0-120 8.46 22 Benzylbutyl phthalate 0.0455 ND 0.0305 0.0262 67.0 57.6 1 34.0-126 15.2 24 Bis(2-ethylhexyl)phthalate 0.0455 ND 0.0241 0.0174 53.0 38.2 1 33.0-126 J3 32.3 25 Di-n-butyl phthalate 0.0455 ND 0.0318 0.0275 69.9 60.4 1 35.0-128 14.5 23 Diethyl phthalate 0.0455 ND 0.0285 0.0226 62.6 49.7 1 39.0-125 23.1 24 Dimethyl phthalate 0.0455 ND 0.0197 0.0167 43.3 36.7 1 37.0-120 J6 16.5 24 Di-n-octyl phthalate 0.0455 ND 0.0244 0.0179 53.6 39.3 1 25.0-135 J3 30.7 26 Pyrene 0.0455 ND 0.0298 0.0241 65.5 53.0 1 39.0-120 21.2 22 1,2,4-Trichlorobenzene 0.0455 ND 0.0176 0.0191 38.7 42.0 1 15.0-120 8.17 31 4-Chloro-3-methylphenol 0.0455 ND 0.0101 0.0103 22.2 22.6 1 26.0-120 J6 J6 1.96 27 2-Chlorophenol 0.0455 ND ND ND 15.9 17.5 1 18.0-120 J6 J6 9.36 34 2,4-Dichlorophenol 0.0455 ND ND ND 19.3 20.3 1 19.0-120 4.99 27 2,4-Dimethylphenol 0.0455 ND ND 0.0102 21.4 22.4 1 15.0-120 4.72 28 4,6-Dinitro-2-methylphenol 0.0455 ND 0.0148 0.0131 32.5 28.8 1 10.0-144 12.2 39 2,4-Dinitrophenol 0.0455 ND 0.0125 0.0105 27.5 23.1 1 10.0-120 17.4 40 2-Nitrophenol 0.0455 ND ND 0.0105 21.0 23.1 1 20.0-120 9.27 30 4-Nitrophenol 0.0455 ND ND ND 16.6 14.7 1 10.0-120 12.5 40 Pentachlorophenol 0.0455 ND 0.0126 ND 27.7 21.8 1 10.0-128 23.9 37 Phenol 0.0455 ND ND ND 13.1 13.1 1 10.0-120 0.504 40 2,4,6-Trichlorophenol 0.0455 ND 0.0106 0.0105 23.3 23.1 1 26.0-120 J6 J6 0.948 31 (S) 2-Fluorophenol 12.6 14.7 10.0-120 (S) Phenol-d5 10.3 11.2 10.0-120 (S) Nitrobenzene-d5 39.8 42.9 10.0-127 (S) 2-Fluorobiphenyl 46.7 46.5 10.0-130 (S) 2,4,6-Tribromophenol 39.0 35.7 10.0-155 (S) p-Terphenyl-d14 48.2 37.4 10.0-128 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 41 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 41 of 47 QUALITY CONTROL SUMMARYWG2129848 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1654128-01,02,03,04 Method Blank (MB) (MB) R3972349-2 09/12/23 17:15 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,4-Dioxane 0.000106 J 0.0000447 0.000400 (S) Nitrobenzene-d5 49.5 10.0-120 Laboratory Control Sample (LCS) (LCS) R3972349-1 09/12/23 16:56 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 1,4-Dioxane 0.0500 0.0651 130 73.0-146 (S) Nitrobenzene-d5 69.1 10.0-120 L1653909-08 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653909-08 09/12/23 20:08 • (MS) R3972349-3 09/12/23 20:27 • (MSD) R3972349-4 09/12/23 20:46 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% 1,4-Dioxane 0.0476 ND 0.0608 0.0614 128 129 1 38.0-160 0.982 21 (S) Nitrobenzene-d5 56.6 49.8 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 42 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 42 of 47 QUALITY CONTROL SUMMARYWG2130432 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1654128-05,06,07 Method Blank (MB) (MB) R3973198-3 09/14/23 00:39 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,4-Dioxane 0.00277 0.0000447 0.000400 (S) Nitrobenzene-d5 59.7 10.0-120 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3973198-2 09/14/23 00:20 • (LCSD) R3973198-1 09/14/23 00:01 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 1,4-Dioxane 0.0500 0.0552 0.0567 110 113 73.0-146 2.68 20 (S) Nitrobenzene-d5 69.6 58.6 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 43 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 43 of 47 QUALITY CONTROL SUMMARYWG2132810 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1654128-06,07 Method Blank (MB) (MB) R3974366-3 09/16/23 00:53 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,4-Dioxane 0.00628 0.0000447 0.000400 (S) Nitrobenzene-d5 49.9 10.0-120 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3974366-1 09/16/23 00:15 • (LCSD) R3974366-2 09/16/23 00:34 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 1,4-Dioxane 0.0500 0.0526 0.0494 105 98.8 73.0-146 6.27 20 (S) Nitrobenzene-d5 51.7 58.1 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 44 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 44 of 47 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (S) Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be detected in all environmental media. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description B The same analyte is found in the associated blank. J The identification of the analyte is acceptable; the reported value is an estimate. J3 The associated batch QC was outside the established quality control range for precision. J4 The associated batch QC was outside the established quality control range for accuracy. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. Q Sample was prepared and/or analyzed past holding time as defined in the method. Concentrations should be considered minimum values. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 45 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 45 of 47 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 46 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 46 of 47 Attachments | UDEQ Response to Comments | Chromalox, Inc., Ogden, Utah | rpsgroup.com Attachment 6 2024 Updated Groundwater Monitoring Analytical Results Table 2 2023 Groundwater Analytical Results Summary1 (Revised April 2024) 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected 3/26/2024 03/29/2023 3/26/2024 3/26/2024 VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE <0.01 <0.01 <0.01 <0.01 Bromomethane NE 0.0075 NE <0.001 <0.001 <0.001 <0.001 Carbon Disulfide NE NE NE 0.0012 J <0.002 <0.002 <0.002 Chlorobenzene 0.1 0.078 0.1 <0.001 <0.001 <0.001 <0.001 Chloroethane NE 21 NE <0.001 <0.001 <0.001 <0.001 Chloroform NE 0.00022 0.08 <0.001 <0.001 <0.001 <0.001 Chloromethane NE 0.19 NE <0.001 <0.001 <0.001 <0.001 1,1-Dichloroethane NE 0.0028 NE <0.001 <0.001 <0.001 0.0016 1,2-Dichloroethane 0.005 0.00017 0.005 <0.001 <0.001 <0.001 <0.001 1,1-Dichloroethene 0.007 0.28 0.007 <0.001 <0.001 <0.001 0.006 Cis-1,2-Dichloroethene 0.07 0.036 0.07 <0.001 <0.001 <0.001 <0.001 Ethylbenzene 0.7 0.0015 0.7 <0.001 <0.001 <0.001 <0.001 Methylene Chloride 0.005 0.011 0.005 <0.002 <0.002 <0.002 <0.002 Tetrachloroethene 0.005 0.011 0.005 <0.001 <0.001 <0.001 <0.001 Toluene 1 1.1 1 0.0004 J <0.001 <0.001 <0.001 1,1,1-Trichloroethane 0.2 8 0.2 <0.001 <0.001 <0.001 0.0007 J 1,1,2-Trichloroethane 0.005 0.00028 0.005 <0.001 <0.001 <0.001 <0.001 Trichloroethene 0.005 0.00049 0.005 <0.001 <0.001 <0.001 <0.001 1,2,3-Trichloropropane NE 0.00000075 NE <0.001 <0.001 <0.001 <0.001 Vinyl Chloride 0.002 0.000019 0.002 <0.001 <0.001 <0.001 <0.001 Xylenes, Total 10 0.19 10 <0.001 <0.001 <0.001 <0.001 *1,4-Dioxane - USEPA Methods 8270C- mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE 0.0023 0.0013 0.0011 0.0046 Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 0.0342 0.274 0.192 <0.0500 Barium 2 3.8 2 0.148 0.268 0.336 0.2 Chromium 0.1 NE 0.1 0.0014 0.249 0.001 0.0008 J Iron NE 14 NE 3.03 28 0.986 0.0303 Lead 0.015 0.015 0.015 <0.0200 0.051 <0.0200 <0.0200 Manganese NE 0.43 NE 0.393 0.303 0.044 0.019 Selenium 0.05 0.1 0.05 0.0108 <0.0400 <0.0200 <0.0200 Silver 0.1 0.094 NE <0.005 0.015 <0.005 <0.005 Notes: Samples Analyzed at Chemtech Ford Laboratories in Murray UT Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 1. In March 2024 approved a request that Chromalox not continue to sample for SVOCs/PAHs. 2023 and previous sampling events which contained those analytes have been removed from this table to facilitate readibility, but are available upon request. Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Green cell: Analyte detected / Yellow cell: UDEQ Screening Level Exceedance mg/L mg/L mg/L Sample ID Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels Utah Ground Water Quality Standards MW-1 MW-7 MW-8 MW-10B Page 1 of 3 Table 2 2023 Groundwater Analytical Results Summary1 (Revised April 2024) 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Ethylbenzene 0.7 0.0015 0.7 Methylene Chloride 0.005 0.011 0.005 Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C- mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Notes: Samples Analyzed at Chemtech Ford Laboratories in Murray UT Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 1. In March 2024 approved a request that Chromalox not continue to sample for SVOCs/PAHs. 2023 and previous sampling events which contained those analytes have been removed from this table to facilitate readibility, but are available upon request. Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Green cell: Analyte detected / Yellow cell: UDEQ Screening Level Exceedance mg/L mg/L mg/L Sample ID Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels Utah Ground Water Quality Standards 3/26/2024 3/26/2024 3/26/2024 03/29/2023 3/27/2024 3/27/2024 3/26/2024 3/26/2024 3/26/2024 3/26/2024 <0.01 <0.01 <0.01 0.0562 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.001 <0.001 <0.001 <0.001 0.0009 J <0.001 <0.001 <0.001 <0.001 <0.001 <0.002 <0.002 <0.002 <0.002 0.0016 J <0.002 <0.002 <0.002 <0.002 <0.002 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.239 0.0008 J <0.001 <0.001 <0.001 <0.001 <0.001 0.0046 <0.001 0.0046 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.0057 <0.001 <0.001 <0.001 <0.001 <0.001 0.0006 J <0.001 0.14 <0.001 4.070 0.0982 0.0109 <0.001 <0.001 0.0044 <0.001 <0.001 0.0094 <0.001 0.189 E 0.0009 J 0.0016 <0.001 <0.001 <0.001 0.0007 J <0.001 6.57 0.0061 55.3 0.0099 0.217 <0.001 <0.001 0.023 <0.001 <0.001 0.0008 J <0.001 0.017 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.0012 <0.001 <0.001 <0.001 <0.001 <0.001 <0.002 <0.002 0.0007 J <0.002 <0.002 0.0007 J-LOW-L, J <0.002 <0.002 <0.002 <0.002 <0.001 <0.001 <0.001 <0.001 0.0194 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.0703 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.0796 <0.001 0.272 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.0028 <0.001 0.100 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.0065 <0.001 0.102 E <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.0004 J <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.0791 0.0009 J-LOW-L, J 0.0377 0.0038 J-LOW-L 0.0019 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.0035 <0.001 <0.001 <0.001 <0.001 <0.001 0.002 0.0014 0.615 0.0056 0.0854 0.0007 0.187 0.0035 0.0022 0.0829 <0.0500 0.195 <0.0100 <0.100 0.0264 0.41 0.0646 <0.0500 <0.0500 0.174 0.108 0.229 0.063 2.34 0.0189 0.149 0.186 0.107 0.159 0.286 0.0007 J 0.0094 0.0266 0.0052 J <0.0100 0.0023 J 0.0015 J 0.0010 J <0.0050 <0.0050 0.234 5.720 7.6 1.88 <0.100 1.22 0.59 0.098 0.112 1.36 <0.0200 <0.0200 <0.0400 <0.0400 0.00765 <0.0200 <0.0200 <0.0200 <0.0200 <0.0200 0.116 0.125 1.190 0.064 6.190 0.11 0.186 0.252 0.042 0.188 <0.0200 <0.0200 <0.0400 <0.0400 <0.0100 <0.0200 <0.0200 0.0188 J 0.0124 J <0.0200 <0.005 <0.005 <0.010 0.002 J <0.00500 <0.005 <0.005 <0.005 0.0009 J 0.0007 J MW-18 MW-20MW-16 MW-17MW-12D MW-13S MW-13D MW-14S MW-14DMW-12S Page 2 of 3 Table 2 2023 Groundwater Analytical Results Summary1 (Revised April 2024) 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Bromomethane NE 0.0075 NE Carbon Disulfide NE NE NE Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Chloromethane NE 0.19 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Ethylbenzene 0.7 0.0015 0.7 Methylene Chloride 0.005 0.011 0.005 Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C- mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Notes: Samples Analyzed at Chemtech Ford Laboratories in Murray UT Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 1. In March 2024 approved a request that Chromalox not continue to sample for SVOCs/PAHs. 2023 and previous sampling events which contained those analytes have been removed from this table to facilitate readibility, but are available upon request. Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019. All concentrations expressed in milligrams per liter (mg/l). Green cell: Analyte detected / Yellow cell: UDEQ Screening Level Exceedance mg/L mg/L mg/L Sample ID Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels Utah Ground Water Quality Standards 3/26/2024 3/26/2024 <0.01 <0.01 <0.001 <0.001 <0.002 <0.002 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.0026 <0.001 <0.001 <0.001 0.0076 <0.001 <0.001 <0.001 <0.001 <0.002 <0.002 <0.001 <0.001 <0.001 <0.001 <0.001 0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.0023 0.0188 0.0342 J 0.0137 J 0.148 0.056 0.0014 J 0.0030 J 3.030 1.21 <0.0200 <0.0200 0.393 0.402 0.0108 J 0.0143 J <0.005 <0.005 GMW-5 GMW-8 Page 3 of 3 Attachments | UDEQ Response to Comments | Chromalox, Inc., Ogden, Utah | rpsgroup.com Attachment 6 2023 Revised Figures with Groundwater Analytical Results X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X XXXXXXXXXXXXXX X X X X X X X X NO R T H R U L O N W H I T E B O U L E V A R D WEST 2150 NORTH X X FORMER DEGREASING AREAS FORMER NICKEL PLATING/ETCHING TEST AREA SANDBLASTING OF F I C E S X X PROPANE TANK AND SHELTER MW-10B GMW-3 MW-5 MW-9 GMW-5 MW-8 GMW-6 MW-1 GMW-2 GMW-7 GMW-1 MW-7 MW-11 MW-15 MW-13S/ MW-13D MW-12S/ MW-12D MW-18 MW-17 MW-16 FORMER TCA DEGREASER TANK FORMER TCA DEGREASER TANK GP-17 GP-16 GP-13 GMW-8 GMW-4 INJ-4 INJ-5 INJ-3 INJ-6 MW-20 MW-21 MW-19 MW-22MW-14S/ MW-14D INJ-7 INJ-8 INJ-9 CHROMALOX 2150 RULON WHITE BOULEVARD OGDEN, UT 22 2 1 5 3 GRAPHIC 4/15/24 CS/JB NORTH DESCRIPTION: DATE: SCALE: DRAWN: FI L E : 0 50 100 FIGURE: 2023 Shallow Groundwater Monitoring SITE BOUNDARY LEGEND PREVIOUSLY INSTALLED WELL WELL INSTALLED IN 2019 WELL THAT WERE NOT LOCATED/ DAMAGED NEW MONITORING WELL INSTALLED OCTOBER 2021 NEW INJECTION WELL INSTALLED IN 2020 GROUNDWATER CONTOUR LINE GROUNDWATER FLOW DIRECTION DECOMMISSIONED WELLS IN JUNE 2023 X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X XXXXXXXXXXXXXX X X X X X X X X NO R T H R U L O N W H I T E B O U L E V A R D WEST 2150 NORTH X X FORMER DEGREASING AREAS FORMER NICKEL PLATING/ETCHING TEST AREA SANDBLASTING OF F I C E S X X PROPANE TANK AND SHELTER MW-10B GMW-3 MW-5 MW-9 GMW-5 MW-8 GMW-6 MW-1 GMW-2 GMW-7 GMW-1 MW-7 MW-11 MW-15 MW-13S/ MW-13D MW-12S/ MW-12D MW-18 MW-17 MW-16 FORMER TCA DEGREASER TANK FORMER TCA DEGREASER TANK GP-17 GP-16 GP-13 GMW-8 GMW-4 INJ-4 INJ-5 INJ-3 INJ-6 MW-20 MW-21 MW-19 MW-22MW-14S/ MW-14D INJ-7 INJ-8 INJ-9 CHROMALOX 2150 RULON WHITE BOULEVARD OGDEN, UT 22 2 1 5 3 GRAPHIC 04/15/24 CS/JB NORTH DESCRIPTION: DATE: SCALE: DRAWN: FI L E : 0 50 100 FIGURE: 2023 Deep Groundwater Monitoring SITE BOUNDARY LEGEND PREVIOUSLY INSTALLED WELL WELL INSTALLED IN 2019 WELL THAT WERE NOT LOCATED/ DAMAGED NEW MONITORING WELL INSTALLED OCTOBER 2021 NEW INJECTION WELL INSTALLED IN 2020 GROUNDWATER CONTOUR LINE GROUNDWATER FLOW DIRECTION DECOMMISSIONED WELLS IN JUNE 2023 Attachments | UDEQ Response to Comments | Chromalox, Inc., Ogden, Utah | rpsgroup.com Attachment 7 Investigation Derived Waste