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rpsgroup.com FIRST BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX, INC. VCP - 073 2150 NORTH RULON WHITE BOULEVARD OGDEN, UTAH 84404 RPS Project No.221020 First Bi-Annual 2023 Groundwater Monitoring Report May 2023 FIRST BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com This report was prepared by RPS within the terms of RPS’ engagement agreement with its client and in direct response to an agreed scope of services. This report is supplied for the sole and specific purpose for use by RPS’ client. The report does not account for any changes relating the subject matter of the report, or any legislative or regulatory changes that have occurred since the report was produced and that may affect the report. RPS does not accept any responsibility or liability for loss whatsoever to any third party caused by, related to or arising out of any use or reliance on the report. Prepared by: Prepared for: RPS, A Tetra Tech Company Chromalox, Inc. 20 Park Plaza, Suite 322 Boston MA 02116 2150 North Rulon White Boulevard Ogden, Utah 84404 T +1 617 880 1442 T +1 801 786 4208 FIRST BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com Contents Appendices ......................................................................................................................................... 2 1 INTRODUCTION AND BACKGROUND ........................................................................................... 4 1.1 Report Organization ................................................................................................................. 5 2 SITE BACKGROUND ........................................................................................................................ 6 2.1 Site Description ........................................................................................................................ 6 2.2 Environmental Setting .............................................................................................................. 6 2.2.1 Hydrogeology and Groundwater Flow Elevation ........................................................ 6 3 GROUNDWATER MONITORING PROGRAM .................................................................................. 7 4 GROUNDWATER SAMPLING .......................................................................................................... 8 4.1 Well Head Inspection and Maintenance .................................................................................. 8 4.2 Groundwater Elevations ........................................................................................................... 8 4.3 Groundwater Purging ............................................................................................................... 8 4.4 Groundwater Sampling ............................................................................................................ 8 4.5 Quality Assurance and Quality Control (QA/QC) ..................................................................... 9 4.5.1 Field QA/QC ................................................................................................................ 9 Duplicate samples were collected at wells GMW-7 and MW-16 and analyzed for VOCs, 1,4- dioxane, SVOCs, and dissolved RCRA metals. The duplicate samples for all methods are generally consistent with the parent sample. ........................................ 9 4.5.2 Laboratory QA/QC ...................................................................................................... 9 4.5.3 Decontamination Procedures ..................................................................................... 9 4.6 Investigation Derived Wastes................................................................................................... 9 5 GROUNDWATER ANALYTICAL RESULTS .................................................................................. 10 5.1 VOCs ...................................................................................................................................... 10 5.1.1 1,4-dioxane ............................................................................................................... 11 5.2 Dissolved Metals .................................................................................................................... 11 5.2.1 Dissolved Metals ....................................................................................................... 11 5.3 SVOCs ................................................................................................................................... 11 6 SUMMARY AND FUTURE ACTIVITIES ......................................................................................... 12 6.1 Summary ................................................................................................................................ 12 6.2 Future Activities ...................................................................................................................... 12 Appendices Appendix A - Figures Figure 1 Site Vicinity Map Figure 2 Site Layout Figure 3a Shallow Groundwater Elevation Contour Map Figure 3b Deep Groundwater Elevation Contour Map FIRST BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com Appendix B - Tables Table 1 Groundwater Elevations & Gauging Results Table 2 Summary of Groundwater Analytical Results Appendix C – Water Level Data and Groundwater Sampling Field Forms Appendix D – VOC Trend Diagrams Appendix E – 1,1-DCE Trend Diagrams Appendix F – Dissolved Metals Trend Diagrams Appendix G – Laboratory Reports and Chains of Custody PROFESSIONAL CERTIFICATION AND LIMITATIONS The information contained in or accompanying this submittal is true, accurate, and complete to the best of our knowledge. As to those portions of this submittal for which we cannot personally verify the accuracy and were prepared by our subcontractors and vendors, the submittal and attachments were prepared in accordance with commonly accepted industry standards and procedures designed to assure that qualified personnel properly gathered and evaluated the information submitted or, were prepared by or at the direction of environmental professionals representing our subcontractors and vendors. This report has been prepared under the direct supervision of the undersigned. The opinions expressed in this document are based upon the information available to RPS and are given in response to a limited scope of work and should be considered and implemented only in light of that limited scope of work. The services provided by RPS in completing this project were consistent with normal standards of the profession. No warranty is expressed, implied, or made. Reviewed and Approved by: _________________________ __________________________ Sarah Showalter Mike H. Wilson Senior Consultant Vice President 617.880.1442 404.809.3884 FIRST BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com 1 INTRODUCTION AND BACKGROUND RPS Group, Inc. (RPS), on behalf of Chromalox, Inc. (Chromalox), has prepared this report presenting the results of the First 2023 Bi-Annual groundwater monitoring event conducted at Chromalox’s property located at 2150 North Rulon White Boulevard in Ogden, Utah (the Site). A Site Location Map is included as Figure 1 in Appendix A. On August 29, 2011, Chromalox entered into an agreement with the Utah Department of Environmental Quality (UDEQ) to address the identified contamination under the Voluntary Clean-up Program (VCP) of the UDEQ. VCP number 073 was assigned to the Site. As part of an approved Interim Remedial Action Plan (IRAP), Chromalox is submitting this 2023 1st Bi-annual 2023 Groundwater Monitoring Report that documents groundwater conditions at the Site. Analytical results of this report are compared to baseline groundwater conditions established in the 3rd Quarter 2019 groundwater monitoring event. Historical site investigations and groundwater monitoring results have been provided in previous bi-annual reports submitted to UDEQ. FIRST BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com 1.1 Report Organization The report is organized as follows: Section 1.0 Includes an introduction. Section 2.0 Describes the Site’s background and environmental setting. Section 3.0 Presents the groundwater monitoring program. Section 4.0 Includes details of the monitoring and sampling procedures used during the groundwater monitoring event. Section 5.0 Presents groundwater analytical results for this quarter. Section 6.0 Summarizes the results of the current monitoring event and presents future activities. Section 7.0 References. FIRST BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com 2 SITE BACKGROUND 2.1 Site Description The Site is comprised of 14.04 acres located at the northeast corner of the intersection of North Rulon White Boulevard and W 2150 N. The Site location and Site layout are depicted in Figures 1 and 2, respectively, of Appendix A. Chromalox manufactures various industrial heating elements at the Site, including tubular heating elements, component heaters (strip and ring, cartridge, and sheet metal), immersion elements (large and small flanged, screw plugs, and over-the-side), and system heaters (heat transfer and circulation). 2.2 Environmental Setting A summary of the Site environmental setting is provided below. 2.2.1 Hydrogeology and Groundwater Flow Elevation Groundwater at the Site has generally been encountered between approximately 7 and 28 feet below ground surface (bgs). Permanent groundwater monitoring wells are installed at two depth ranges; shallow wells are installed at depths between approximately 20 to 30 feet bgs and deep wells are installed at depths of approximately 35 to 43 feet. However, it should be noted that the apparently variable depth to groundwater at the Site does not appear to reflect topography, as the elevation change noted across the entire Site is only 10 feet. Rather, the previously observed variable depth to groundwater is likely the result of two factors: 1) the low hydraulic conductivity of the native clayey soil that limits horizontal and vertical movement, and 2) the presence of groundwater within discontinuous sand lenses in the native clayey soil. Review of logs of area potable water supply wells surrounding the Chromalox facility indicates that these wells are completed at deep levels (i.e., greater than 100 feet bgs). Review of area well logs suggests that the geology in the area is mostly clay with discontinuous sand and silt lenses over 150 feet thick. FIRST BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com 3 GROUNDWATER MONITORING PROGRAM RPS conducted the First Bi-Annual 2023 groundwater monitoring event on March 28-30, 2023, in accordance with the State-approved groundwater monitoring plan dated June 2019. All 38 site wells were gauged for depth to water and depth to bottom. A total of 29 wells (excluding injection wells INJ-2 through INJ-9 and GMW-6) were sampled for Volatile Organic Compounds (VOCs), 1,4-dioxane, Semi-VOCs (SVOCs), and Dissolved Resource Conservation and Recovery Act (RCRA) metals, including Iron and Manganese. Field activities consisting of groundwater sampling were performed by Tetra Tech of Salt Lake City, Utah. A Site- specific Health and Safety Plan developed for the Site was followed by RPS and Tetra Tech personnel during field activities. The following tasks were completed to implement the scope of work for this groundwater monitoring event: • Inspected each well head and noted the condition of well vault, bolts, lids, well caps and gaskets; • Measured the static groundwater levels (water levels) in all thirty-eight (38) site wells. The tape and probe were decontaminated between each well to minimize the potential for cross-contamination; • Purged and sampled the groundwater from twenty-nine (29) of the thirty-eight (38) monitoring wells using low flow sampling techniques; • Recorded water quality parameters such as pH, electrical conductivity (EC), temperature, dissolved oxygen (DO), oxygen reduction potential (ORP), and turbidity using a flow-through cell at regular intervals as part of the purging and sampling activities. Details on these activities is presented in the next sections. FIRST BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com 4 GROUNDWATER SAMPLING The field activities of this sampling event are presented in this section. 4.1 Well Head Inspection and Maintenance Well heads were inspected prior to gauging depth to groundwater at each well. Damaged bolts, lids, well caps, and gaskets were noted and will be repaired or replaced as needed during the subsequent groundwater sampling event. Any significant water accumulation in the well vault is evacuated prior to opening the well cap and sampling. 4.2 Groundwater Elevations The wells were gauged for depth to groundwater using a calibrated Solinst electrical water interface probe. Depths were measured to the nearest 0.01 feet and referenced to the top of each surveyed well casing. The tape and probe were decontaminated after each measurement to minimize the potential for cross contamination. Groundwater elevations from shallow and deep monitoring wells were utilized to create shallow and deep groundwater potentiometric surface maps. Previously installed deep monitoring wells (MW-1, MW-5, MW-7, MW- 8, MW-9 and GMW-5) are located near the northeast portion of the Site. Deep monitoring wells installed in 2019 (MW-12D, MW-13D and MW-14D) are nested with shallower wells in the vicinity of AOC 4 and AOC 6. The remaining monitoring wells are shallow and distributed across the Site. Figure 3 presents the locations of the monitoring wells at the Site. Calculated groundwater elevations indicate the shallow groundwater flow direction is generally toward the north and northwest. Deeper groundwater flow is generally to the north and northwest. Figure 3A and 3B of Appendix A present shallow and deep groundwater elevation contours at the Site, based on well gauging data collected in March 2023. Groundwater elevations are summarized on Table 1 in Appendix B. Groundwater flow direction at the Site will continue to be assessed during well gauging in any subsequent bi- annual groundwater sampling events. 4.3 Groundwater Purging During purging, water quality parameters (temperature, pH, EC, turbidity, DO, and ORP) were measured and recorded at regular intervals using a calibrated flow-through cell. Prior to initiating groundwater sampling, each well was purged to remove the stagnant water in the tubing. This volume was calculated by adding the depth of the pump multiplied by the tubing diameter (volume of discharge line) to the standard volume of the bladder pump (estimated at 395 milliliters). Thereafter, groundwater was purged until the water quality indicator parameters had stabilized to within five percent (%) difference between consecutive readings. Groundwater purge and sampling field forms are included as part of Appendix C of this report. 4.4 Groundwater Sampling After purging the wells, groundwater samples were collected from each well through dedicated tubing. Care was taken to collect the groundwater samples at a low flow rate of approximately 250 mL/min to avoid agitating the preservative present in the sampling bottles and to help fill the bottles without headspace, thereby minimizing off gassing of VOCs from the samples. Samples for VOC and 1,4-dioxane analyses were collected first. FIRST BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com Groundwater samples were collected into laboratory-provided sample containers for each respective analysis. A summary of the sampling and analysis program results are presented in Table 2 in Appendix B. Each sample container was labeled with the date and time of sample collection, the analyses requested, and a unique sample name. Following labeling, the samples were kept on ice in a cooler. A total of thirty-one (31) primary samples (including duplicate samples, discussed below) were sent under chain-of-custody to Pace Analytical National (Pace) in Mount Juliet, Tennessee, a state-certified environmental laboratory, for analysis. 4.5 Quality Assurance and Quality Control (QA/QC) 4.5.1 Field QA/QC Duplicate samples were collected at wells GMW-7 and MW-16 and analyzed for VOCs, 1,4-dioxane, SVOCs, and dissolved RCRA metals. The duplicate samples for all methods are generally consistent with the parent sample. 4.5.2 Laboratory QA/QC The laboratory performed internal QA/QC tests to ensure analytical precision, including method blanks, surrogates, laboratory control spike and laboratory control spike duplicates, matrix spike and matrix spike duplicates, laboratory duplicates, and initial and continuing calibration checks. These results are included in the laboratory reports included in Appendix G. 4.5.3 Decontamination Procedures All commonly used equipment that came in contact with potentially contaminated groundwater was decontaminated between sampling locations using the three-stage wash and rinse decontamination procedure (i.e., rinse equipment with tap water, wash equipment with a non-phosphate detergent, and final rinse with distilled water). 4.6 Investigation Derived Wastes The waste generated from the groundwater sampling field activities (decontamination water and purged groundwater) was temporarily stored at the Site in an appropriately labeled, sealed, and covered Department of Transportation (DOT) approved 55-gallon drum. The wastes will be managed offsite upon receipt of laboratory analytical results. FIRST BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com 5 GROUNDWATER ANALYTICAL RESULTS Groundwater samples were analyzed by Pace for the parameters discussed in Section 3. The samples were relinquished to the laboratory with the appropriately signed chain-of-custody forms completed at the time of sampling. Groundwater analytical testing results are summarized on Table 2. Trend graphs for each monitoring well are presented in Appendices D through F. The laboratory analytical reports and the corresponding COCs are presented in Appendix G. 5.1 VOCs A summary of detected VOCs is presented in Table 2 of Appendix B. Nine VOCs were detected at a concentration that exceeded the UDEQ groundwater standard, USEPA Maximum Contaminant Level (MCL), and/or the USEPA risk-based derived Tapwater Regional Screening Level (RSL). Concentrations of analytes in exceedance of the aforementioned standards in the monitoring wells are discussed below: • 1,1-DCE was reported in thirteen (13) wells above one or more applicable standards. Concentrations ranged from 0.00233 µg/L in monitoring well GMW-3 to 6.82 µg/l in MW-13S. • 1,1-DCA was reported in eleven (11) wells above one or more applicable standards. Concentrations ranged from 0.00419 µg/L in monitoring well GMW-8 to 4.59 µg/l in MW-14S. • 1,2-DCA was reported in seven (7) wells above one or more applicable standards. Concentrations ranged from 0.00106 µg/L in monitoring well MW-11 to 0.172 µg/l in MW-14S. • Chloroform was reported in one well (MW-13S) at a concentration of 0.00538 µg/l, which exceeds one or more of the applicable standards. • 1,1,1-TCA was reported in one well (MW-14S) at a concentration of 0.296 µg/l, which exceeds one or more of the applicable standards. • 1,1,2-TCA was reported in two wells above one or more applicable standards. Concentrations ranged from 0.00247 µg/L in well MW-13S to 0.0909 µg/L in well MW-14S. • PCE was reported in one well (MW-14S) at a concentration of 0.0402 µg/l, which exceeds all three applicable standards. • TCE was reported in three wells above one or more applicable standards. Concentrations ranged from 0.00285 µg/l in monitoring well GMW-7 to 0.109 µg/l in MW-14S. • Vinyl Chloride (VC) was reported in five wells above one or more applicable standards. Concentrations ranged from 0.00156 µg/l in monitoring well MW-13D to 0.0686 µg/l in MW-13S. The chlorinated VOCs in groundwater continue to remain mostly situated at the northern and eastern portions of the Site. The southern-most monitoring well located along the southern end of the building exterior (GMW-1) continues to contain no concentrations of VOCs. The highest concentrations of analytes (chlorinated solvents in particular) above the UDEQ Groundwater Quality Standards and USEPA RSLs and MCLs remain detected in the vicinity of the injection wells located near AOC 4 & AOC 6, at the northwestern portion of the Site. FIRST BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com 5.1.1 1,4-dioxane 1,4-dioxane was reported above the applicable standards in twenty four (24) of the wells ranging from 0.000562 µg/l in well MW-7 up to 2.85 µg/l in well GMW-6. Neither a UDEQ Groundwater Quality Standard nor an MCL has not been established for 1,4-dioxane. 5.2 Dissolved Metals During the First Bi-Annual 2023 sampling event on March 28-30, 2023, RPS analyzed samples for dissolved RCRA Metals, including dissolved iron and dissolved manganese. 5.2.1 Dissolved Metals Two dissolved metals were reported at a concentration above the established standards. Concentrations of analytes in exceedance of the aforementioned standards in the monitoring wells are discussed below: • Arsenic (dissolved) was reported in twenty wells above one or more established standard. Concentrations ranged from 0.0132 µg/l in monitoring well MW-17 to 0.36 µg/l in well MW-14D. • Manganese (dissolved) was reported in two wells above one or more established standard. Concentrations ranged from 0.650 µg/l in monitoring well MW-13S to 6.190 µg/l in well MW-14S. Concentrations of dissolved arsenic above groundwater screening criteria continue to be distributed throughout the Site. Manganese detections in excess of one or more established standard was limited to two wells in the vicinity of AOC-4 and AOC-6 during this monitoring period. No other metals were detected in wells at concentrations exceeding applicable standards. Most metal concentrations near the treatment areas appear to be generally stable and continue to show no significant long-term increases following remediation activities. Metal concentrations within the treatment areas will continue to be monitored to verify any long-term influence of the injection treatments on the release of metals to groundwater. 5.3 SVOCs No SVOCs were detected at a concentration that exceeded the UDEQ groundwater standard, USEPA Maximum Contaminant Level (MCL), or the USEPA risk-based derived Tapwater Regional Screening Level (RSL) during this round of groundwater monitoring. Detected concentrations of SVOCs continue to remain below groundwater screening criteria with the exception of 1,4-Dioxane, Benzo(a)pyrene, and Dibenz(a,h)anthracene, which have been historically detected in site wells but were not detected during this round of groundwater monitoring. FIRST BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com 6 SUMMARY AND FUTURE ACTIVITIES On March 28 through 30, 2023, RPS conducted the First Bi-Annual 2023 groundwater monitoring event that included gauging of thirty-eight (38) wells and sampling of twenty-nine (29) wells at the Site. 6.1 Summary Based on the analytical results from all the sampling events, concentrations of the chlorinated VOCs appear to continue to fluctuate somewhat over time, but generally maintain concentrations in the same order of magnitude in each of the monitoring wells. The highest concentrations detected were still reported in the vicinity of AOC 4 and AOC 6, with some elevated concentrations alone the eastern boundary of the Site in wells MW-10B, MW-11, MW-16, MW-20 and MW-21. The following conclusion and recommendations are based on the results of the current and overall groundwater monitoring program: • Groundwater flow direction is somewhat variant over time but continues to indicate an overall north to northwest flow direction. • Due to past injection activities, the groundwater conditions in the injection wells are not considered to be representative of average groundwater conditions at the Site. As such, on March 2, 2023, UDEQ approved of the removal of injection wells INJ-2 through INJ-9 from the groundwater monitoring schedule in favor or relying on data collected from nearby wells. Additionally, monitoring well GMW-6 was removed from the groundwater monitoring schedule as this area is sufficiently being evaluated by (and may be duplicative of) nearby wells. • Analytical parameter concentrations for the monitoring wells were generally consistent with the previous quarter’s sampling event with a mixture of increases and decreases in concentrations of regulated constituents. Elevated chlorinated solvent concentrations are still within the confines of AOC 4 and AOC 6. 1,4-Dioxane concentrations are more widely distributed, but the highest levels are still located in these AOCs. Elevated VOCs are also still being detected along the eastern property boundary in monitoring wells (MW-10B, MW-11, MW-16, MW-20 and MW-21). 6.2 Future Activities Based on recommendations made by the UDEQ, RPS will prepare and submit to UDEQ a Conceptual Site Model (CSM) on behalf of Chromalox. The purpose of a CSM is to identify sources, receptors and pathways associated with the area(s) of concern historically noted at the Site. The CSM will also assist in the effective communication of critical issues and/or processes identified at the Site, and support the process of determining any future remedial actions that may (or may not) be necessary. The next sampling event (September 2023) will be performed in accordance with UDEQ agreements and the State-approved June 2019 groundwater monitoring plan. It is valuable to note that Chromalox has future site development activities scheduled for the remainder of 2023. Development activities include the construction of a 100,000 square foot building to the east of the existing facility, affecting several existing monitoring wells. As such, and at the request of UDEQ, RPS will oversee the proper decommissioning of the affected groundwater monitoring wells in order to eliminate the potential conduit for pollution to reach the groundwater. New monitoring wells will be installed following the completion of site development activities. Quadrangle Location Chromalox Ogden Utah Project No. 162716.513.00 UNITED STATES GEOLOGICAL SURVEY DEPARTMENT OF THE INTERIOR/USGS PLAIN CITY QUADRANGLE UTAH 7.5 MINUTE SERIES (TOPOGRAPHIC) 1998 Scale 1:24 000 Contour Interval 20 Feet Figure 1 Site Location Map STOR A G E S H E D A N D B O N E Y A R D 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 X X X X X X X X X X X X N O R T H R U L O N W H I T E B O U L E V A R D WEST 2 1 5 0 N O R T H X X FORM E R DEGR E A S I N G AREA S FORM E R N I C K E L PLAT I N G / E T C H I N G TEST A R E A SAND B L A S T I N G O F F I C E S PAIN T B O O T H , F O R M E R DEGR E A S E R & F L O O R D R A I N S FORM E R T C A TANK X CHROMALOX 2150 RULON WHITE BOULEVARD OGDEN, UT 21 0 2 0 GRAPHIC 8/13/20 CS/JB 2 NORTH DESCRIPTION: DATE: SCALE: DRAWN: FI L E : FIGURE: 0 50 100 SITE LAYOUT MAP P A R K I N G L O T AOC 6 LOAD I N G D O C K S TOWER EMPL O Y E E PARK I N G PROD U C T I O N AREA AOC 4 PROPANE TANK AND SHELTER AOC 2 G R A V E L AREA AOC 1 AOC 7 AOC 9 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 4280.00 4280.00 4280.00 4280.0 0 4280.0 0 4281.0 0 4281.00 4281 . 0 0 4281.00 4281.00 4282.00 4282.00 4282 . 0 0 42 8 3 . 0 0 CHROMALOX 2150 RULON WHITE BOULEVARD OGDEN, UT 22 1 0 2 0 GRAPHIC 5/26/23 CS/JB 3A NORTH DESCRIPTION: DATE: SCALE: DRAWN: FI L E : FIGURE: 0 50 100 SHALLOW GROUNDWATER POTENTIOMETRIC SURFACE SITE BOUNDARY PREVIOUSLY INSTALLED WELL WELL INSTALLED IN 2019 GROUNDWATER CONTOUR LINE WELL THAT WERE NOT LOCATED/ DAMAGED 4285.22 4283.67 4283.14 4277.55 4281.99 GROUNDWATER FLOW DIRECTION 4279.68 4281.81 4278.23 4282.52 4281.31 4280.67 4282.41 4276.77 NEW MONITORING WELL INSTALLED OCTOBER 2021 NEW MONITORING WELL INSTALLED OCTOBER 2021 4279.55 4279.59 4279.17 4279.73 4280.56 4279.41 4283.67 4583.72 4280.12 4278.83 4279.46 4279.32 4278.77 4279.35 4278.94 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 42 7 6 . 0 0 4277 . 0 0 42 7 8 . 0 0 4278 . 0 0 CHROMALOX 2150 RULON WHITE BOULEVARD OGDEN, UT 22 1 0 2 0 GRAPHIC 5/26/23 CS/JB 3B NORTH DESCRIPTION: DATE: SCALE: DRAWN: FI L E : FIGURE: 0 50 100 DEEP GROUNDWATER POTENTIOMETRIC SURFACE SITE BOUNDARY LEGEND PREVIOUSLY INSTALLED WELL WELL INSTALLED IN 2019 WELL THAT WERE NOT LOCATED/ DAMAGED 4276.99 4277.32 4277.98 4278.46 4274.48 4278.95 4278.24 4283.53 4276.72 4276.05 GROUNDWATER CONTOUR LINE GROUNDWATER FLOW DIRECTION NEW MONITORING WELL INSTALLED OCTOBER 2021 NEW INJECTION WELL INSTALLED IN 2020 82 7 0 S V O C s 1, 4 - D i o x a n e b y 8 2 7 0 SI M VO C s 8 2 6 0 Di s s R C R A 8 M e t a l s + Fe , M n GMW-1 4285.166 3.18 4281.99 21.94 xxx - GMW-2 4285.28 5.60 4279.68 57.1 xxx Bolts missing GMW-3 4288.59 6.78 4281.81 26.93 xxx - GMW-4 4586.80 3.08 4583.72 21.2 xxxx - GMW-5 4287.382 9.14 4278.24 33.25 xxx - GMW-6 4286.32 6.65 4279.67 22.25 xxx - GMW-7 4286.472 8.24 4278.23 26.5 xxxx - GMW-8 4287.73 4.20 4283.53 30.78 xxx - MW-1 4287.326 10.01 4277.32 43.26 xxxx - MW-5 4288.308 13.83 4274.48 40.12 xxxx - MW-7 4284.362 6.38 4277.98 32.5 xxxx MW-8 4287.91 9.45 4278.46 37.93 xxx MW-9 4287.444 10.45 4276.99 40.3 xxx - MW-10B 4288.91 3.69 4285.22 24.8 xxxx - MW-11 4287.82 5.30 4282.52 24.91 xxxx Bolts missing MW-12S 4285.15 2.01 4283.14 19.9 xxxx - MW-12D 4285.03 6.08 4278.95 37.6 xxxx - MW-13S 4285.31 5.76 4279.55 17.02 xxxx Bolts missing MW-13D 4285.33 8.61 4276.72 36.9 xxxx - MW-14S 4286.70 7.11 4279.59 28.2 xxxx - MW-14D 4286.73 10.68 4276.05 38.2 xxxx - MW-15 4288.10 6.79 4281.31 25.2 xxxx - MW-16 4288.84 8.17 4280.67 25.76 xxxx MW-17 4286.84 4.43 4282.41 27.4 xxxx - MW-18 4287.61 3.94 4283.67 23.36 xxxx - MW-19 4287.42 8.25 4279.17 26.45 xxx - MW-20 4287.27 7.54 4279.73 24.56 xxx - MW-21 4286.21 6.65 4279.56 25.93 xxx - MW-22 4285.81 6.40 4279.41 26.02 xxx - GP-13 4287.66 3.99 4283.67 22.24 x x x - INJ-2 NA 7.29 -30----- INJ-3 4286.46 7.63 4278.83 32.94 xxx - INJ-4 4286.36 6.90 4279.46 28.6 xxx - INJ-5 4286.37 7.02 4279.35 25.2 xxx - INJ-6 4285.91 7.14 4278.77 21.46 xxx - INJ-7 4286.67 7.73 4278.94 34.63 xxx - INJ-8 4286.71 6.59 4280.12 34.25 xxx - INJ-9 4286.67 7.35 4279.32 37.9 xxx - Master Table - GW Elevation & Analyses Chromalox - 2150 Rulon White Boulevard Ogden, Utah 84404 1 Analyses (x=select analysis for this well) Count Well Name Top of Casing Elevation Depth to Water (ft.- BTOC)Water Elevation Depth to Bottom (ft.-BTOC)Notes 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 Shaded wells are considered deep monitoring wells over 30' Page 1 of 1 Table updated with March 2023 GWM data Highlighted = removed from GWM schedule in Mar-2023 Project Number 221020 Table 2 1st Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 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 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 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 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.0500 C3 <0.0500 J4 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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 Carbon Disulfide NE NE NE NA NA NA NA NA NA NA <0.000500 <0.000500 NA NA NA NA NA NA NA NA NA <0.000500 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 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <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 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <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 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 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 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <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 0.00100 J 0.000903 J NA 0.000458 J 0.00046 J 0.000302 J 0.000468 J 0.000322 J 0.0016 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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <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 0.00178 0.00266 0.00158 NA 0.000758 J 0.00103 0.000578 0.00104 0.000926 J 0.00326 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 <0.00100 0.000389 J NA <0.00100 <0.00100 <0.000500 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 C3 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <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 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 C3 <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 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <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 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 C3 <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 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 J4 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J4 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <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 <0.00250 <0.00250 NA <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 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <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 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <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 0.0127 0.00903 0.0115 0.00544 NA 0.00626 0.00362 B 0.0045 0.00377 0.0132 SVOCs - USEPA Method 8270C Chrysene NE NE NE NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA <0.00111 <0.00100 Hexachloroethane NE 0.00033 NE <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 NA NA NA NA NA <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 Benzo(a)anthracene NE NE NE NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00111 <0.00100 Benzo(b)fluoranthene NE NE NE NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00111 <0.00100 Benzo(k)fluoranthene NE NE NE NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00111 <0.00100 Benzo(g,h,i)perylene NE NE NE NA NA NA NA NA <0.001 <0.001 NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <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 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 Dibenz(a,h)anthracene NE 0.000025 NE NA NA NA NA NA <0.001 <0.001 NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 Naphthalene NE 0.00017 NE NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 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 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 0.00105 J <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 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <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 0.000419 J <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <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 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <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 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <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 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <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 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <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 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <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 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <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 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <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 0.00883 J <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <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 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 Acenaphthylene NE NE NE <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <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 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <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 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <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 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <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 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <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 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 Chrysene NE 0.025 NE <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <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 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 Fluoranthene NE 0.8 NE <0.0000500 <0.0000500 <0.0000500 NA <0.000100 NA <0.000100 NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00111 <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 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <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 <0.000250 0.0000254 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 Phenanthrene NE NE NE <0.0000500 0.0000115 J <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 Pyrene NE 0.12 NE <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <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 <0.000250 0.000011 J <0.000250 <0.000250 NA <0.000250 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 <0.000250 0.0000202 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA Other PAHs Varies Varies Varies ND ND ND NA ND NA ND NA NA NA NA NA ND ND ND ND NA ND 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 0.196 0.220 0.235 0.201 NA 0.234 0.253 0.238 0.214 0.264 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 0.693 0.694 0.692 0.65 NA 0.709 0.703 0.705 0.687 0.715 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 <0.00200 <0.00200 0.000674 J NA 0.00113 J 0.00129 J 0.000574 J <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 <0.0100 <0.0100 <0.0100 NA 0.00187 J <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 0.0553 J 0.108 0.0477 J NA 0.0934 J 0.371 0.0874 J 0.409 0.129 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 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 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 0.0871 0.0928 0.0871 0.0701 NA 0.0906 0.078 0.0751 0.0703 0.103 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 <0.0100 <0.0100 <0.0100 NA 0.0120 <0.0100 <0.0100 <0.0100 0.0111 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 <0.00500 <0.00500 <0.00500 NA <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 <0.000200 <0.000200 <0.000200 NA <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 NA 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 EnvBold 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 16 Project Number 221020 Table 2 1st Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C 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 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 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 o Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the U Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 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 Qualifi 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 q 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 09/16/2019 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 J <0.0500 <0.0500 J4 <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 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <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 <0.000500 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 <0.00100 <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 <0.00100 <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 <0.00500 <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 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <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 <0.00500 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <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 <0.00500 <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 <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 <0.00500 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 C3 <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 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00250 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00300 <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 0.00191 <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 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 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 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 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 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 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 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 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 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 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 <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 <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 <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 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 J4 <0.0100 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 NA NA NA NA NA NA NA NA NA NA NA <0.000250 0.0000207 J.0000293 B J J3 <0.000250 <0.000500 NA <0.000500 NA <0.000250 <0.000500 <0.00500 <0.00500 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 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 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 <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 ND ND ND ND ND NA ND NA ND ND 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 0.231 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 0.308 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 <0.00200 <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 <0.0100 <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 0.124 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 <0.00500 <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 0.0281 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 <0.0100 <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 <0.00500 <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 <0.000200 <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 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 16 Project Number 221020 Table 2 1st Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C 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 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 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 o Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the U Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 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 Qualifi 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 q 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 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 <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 NR <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J3 J4 <0.0500 <0.0500 J4 <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 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.000500 NA NA NA NA NA NR NA NA NA NA <0.000500 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 NR <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 <0.0100 <0.00100 <0.00100 <0.00100 NR <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 <0.00500 <0.00250 <0.00500 <0.0500 C3 <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 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.0500 <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 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.0500 <0.00500 <0.00500 <0.00500 NR <0.00500 NA <0.00500 <0.00500 <0.00250 <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 0.00209 0.00205 NR 0.00209 NA 0.00208 0.00192 0.00273 0.00382 0.00413 0.00542 <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 NR <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 0.000305 J <0.00100 <0.0100 <0.00100 0.0323 0.0308 NR 0.0337 NA 0.0203 0.0208 0.0244 0.0341 0.0326 0.0501 <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 NR <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 <0.0100 <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 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <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 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <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 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 NR <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 <0.0100 <0.00500 <0.0100 <0.100 <0.0100 <0.0100 <0.0100 NR <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 J3 <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 NR <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 <0.0100 <0.00500 <0.0100 <0.100 <0.0100 <0.0100 <0.0100 NR <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 <0.00500 <0.00250 <0.00500 <0.0500 <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 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <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 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <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 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.0100 <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 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <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 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <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 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <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 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 C3 <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 0.00344 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 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <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 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 NR <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 <0.00250 <0.00250 <0.00250 <0.0250 <0.00250 <0.00250 <0.00250 NR <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 <0.00100 <0.000500 <0.00100 <0.0100 <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 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <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 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <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 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 NR <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 <0.00300 <0.00150 <0.00300 <0.0300 <0.00300 <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00150 <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 0.0154 0.0115 0.0141 0.0182 0.0107 NA 0.0147 0.0000447 0.0155 0.0146 0.0178 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 <0.0100 NA NA NA <0.0100 <0.0100 NA NA NA <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 <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 <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 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NR NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 NA NA NA NA NA NA NA <0.00300 NA NA NA <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA <0.00300 NA NA NA <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA <0.00300 NA NA NA <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA <0.00300 NA NA NA <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA <0.00300 NA NA NA <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA <0.0100 NA NA NA <0.0100 <0.0100 NR <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA <0.0100 NA NA NA <0.0100 <0.0100 NR <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA <0.00300 NA NA NA <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA <0.0100 NA NA NA <0.0100 <0.0100 NR <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA <0.0100 NA NA NA <0.0100 <0.0100 NR <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA <0.0100 NA NA NA <0.0100 <0.0100 NR <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 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <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 <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 <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 <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 <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 <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 <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 <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 <0.00100 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 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 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 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 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 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 <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 ND ND ND ND ND NA ND 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 0.0309 <0.0100 0.00911 0.0160 0.00866 J NA 0.0203 0.00725 J 0.0174 0.0203 <0.0100 0.281 0.272 0.333 0.358 0.225 NA 0.254 0.219 0.24 0.273 0.221 0.427 0.172 0.171 0.203 0.185 NA 0.220 0.186 0.264 0.232 0.344 <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 <0.0007 <0.0007 <0.00200 NA 0.000541 J 0.000495 J 0.000612 J 0.000517 J <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 <0.0400 <0.0400 <0.0100 NA <0.0100 <0.0100 <0.0100 0.00189 J <0.0100 <0.100 <0.100 0.174 0.737 0.114 NA 0.289 0.114 0.412 1.02 0.134 <0.100 <0.100 NR <0.100 <0.100 NA <0.100 <0.100 <0.100 0.172 <0.100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00500 <0.00500 <0.00200 <0.00200 <0.00600 NA <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 0.118 0.224 NR 0.267 0.276 NA 0.294 0.329 0.367 0.4 0.497 <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 <0.00200 <0.00200 <0.0100 NA <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 NA <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 <0.0000900 <0.0000900 <0.000200 NA <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 NA 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 MW-10B mg/L Page 3 of 16 Project Number 221020 Table 2 1st Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C 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 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 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 o Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the U Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 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 Qualifi 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 q 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 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 <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 <0.00100 <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 NA NA NA NA NA <0.000500 NA NA NA NA NA NA NA NA NA NA <0.000500 NA NA 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 <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 <0.00500 <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 0.00131 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 <0.00500 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 0.0148 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 0.00132 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 0.222 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 <0.00100 <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 <0.00100 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 <0.00100 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 <0.00100 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 <0.00100 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 <0.0100 <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 <0.00500 <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 <0.0100 <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 <0.00500 <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 <0.00100 <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 <0.00100 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 <0.00100 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 <0.00100 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 <0.00100 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 <0.00100 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 <0.00100 NA <0.00100 <0.00100 C3 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <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 <0.00100 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 <0.00100 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 <0.00250 <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 <0.00100 <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 <0.00100 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 <0.00100 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 0.00128 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 <0.00300 <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 0.201 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 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 <0.0100 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 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 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 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 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 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 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 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 <0.00300 <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 <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 <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 <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 <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 <0.0100 <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 <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 <0.00300 <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 <0.0100 <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 <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 <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 <0.0000500 <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 <0.0000500 <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 <0.0000500 <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 <0.0000500 <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 <0.0000500 <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 <0.0000500 <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 <0.0000500 <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 <0.0000500 <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 <0.0000500 <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 <0.0000500 <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 <0.0000500 <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 <0.000250 <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 <0.0000500 <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 <0.0000500 <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 <0.000250 <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 <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 ND ND ND NA ND NA ND NA NA NA ND ND ND ND NA ND NA NA NA NA <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 0.250 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 <0.00200 <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 <0.0100 <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 <0.100 <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 <0.00500 <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 0.259 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 <0.0100 <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 <0.00500 <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 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 ND ND ND NA ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND MW-12SMW-11 MW-11 MW-119XDUP (MW-11 Duplicate) Page 4 of 16 Project Number 221020 Table 2 1st Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C 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 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 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 o Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the U Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 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 Qualifi 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 q 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 09/20/2019 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 <0.0500 <0.01 <0.0500 <0.0500 <0.0500 J3 NA <0.0500 <0.0250 <0.0500 J4 <0.0500 <0.0500 J4 0.0371 J <5.00 <5.00 NA**NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <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 <0.100 <0.100 NA NA 0.000225 J 0.000174 J 0.000152 J 0.000130 J 0.000196 J <0.00100 NA NA NA NA NA NA NA <0.000500 NA NA NA NA NA NA NA NA NA NA 0.000115 J NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <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 <0.500 <0.500 NA NA <0.00500 <0.00500 <0.00250 0.00158 J 0.000199 J <0.00500 <0.00500 <0.002 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 0.00279 J <0.500 <0.500 NA NA 0.00768 0.00600 0.00592 0.0042 J 0.00439 J 0.00538 <0.00500 <0.002 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.500 <0.500 NA NA <0.00500 <0.00500 <0.00250 <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 0.0531 0.229 0.0910 J NA NA 0.157 0.188 0.188 E 0.204 0.196 0.188 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.00204 <0.100 <0.100 NA NA 0.0114 0.00945 0.0104 0.00865 0.00781 0.00855 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 0.153 <0.00100 <0.00100 3.070 9.160 3.340 NA NA 7.870 7.310 7.670 Q 6.190 5.99 6.82 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <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 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <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 <0.100 <0.100 NA NA <0.00100 <0.00100 0.000124 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 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <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 <0.100 <0.100 NA NA <0.00100 <0.00100 J4 <0.000500 <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 0.00548 J <1.00 <1.00 NA NA <0.0100 <0.0100 <0.00500 <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 <0.500 <0.500 NA NA 0.000545 J J4 0.000527 J 0.000561 J 0.00495 J 0.000597 J <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 <1.00 <1.00 NA NA <0.0100 <0.0100 <0.00500 <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 <0.500 J4 <0.500 NA NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 C3 <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 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <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 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <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 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <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 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 0.000303 J <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 <0.100 <0.100 NA NA 0.000283 J <0.00100 J4 <0.000500 0.000679 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 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <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 0.117 0.270 0.0878 J NA NA 0.219 0.194 0.173 Q, E 0.114 0.124 0.144 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.000635 J <0.100 <0.100 NA NA 0.00334 0.00275 0.00248 0.00246 0.00213 0.00247 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 0.000277 J <0.00100 <0.00100 0.0027 <0.100 0.0192 B, J, J4 NA NA 0.00897 0.00794 0.00777 0.00551 0.00577 0.00789 <0.00250 <0.002 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.250 <0.250 NA NA <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 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <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 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <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 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <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 0.0223 <0.100 0.0969 J NA NA 0.0444 0.0990 0.0701 0.0913 0.122 0.0686 <0.00300 <0.001 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.300 <0.300 NA NA 0.000195 J <0.00300 <0.00150 <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 0.0972 0.582 0.980 0.523 0.887 NA 0.925 E 0.504 0.801 E 1.08 0.871 E NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.0100 <0.0147 <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0118 <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00300 <0.0147 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 0.00288 J <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.0147 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00354 0.00129 J <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.0147 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 0.000731 J <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.0147 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.000359 J <0.00300 <0.00300 <0.00354 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.0147 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00354 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 0.000359 J <0.00333 <0.00300 <0.0100 <0.0147 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0118 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 J4 <0.0100 <0.0100 <0.0147 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0118 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 J4 <0.0100 <0.00300 <0.0147 <0.00300 <0.00300 NA <0.00300 <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 <0.00333 <0.00300 <0.0100 <0.0147 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0118 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0147 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0118 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0147 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.000839 J <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.000162 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 J4 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.0000500 <0.0147 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00100 <0.00100 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00111 <0.00100 <0.0000500 <0.0147 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 J4 <0.00100 <0.000250 <0.0147 0.0000271 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.000810 <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.0000500 <0.0147 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.000162 0.00000992 J <0.0000500 0.0000202 J <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.0000500 <0.0147 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.000250 <0.0147 0.0000156 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA <0.000810 <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA <0.000250 <0.0147 0.0000239 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA <0.000810 0.0000101 J <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA ND ND ND ND ND NA ND NA NA NA NA ND ND ND ND ND NA ND 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 0.0268 <0.0100 <0.0100 0.00495 J 0.00508 J NA <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 0.178 0.0378 0.0375 0.0386 0.0351 NA 0.0265 0.0314 0.0265 0.0278 0.023 <0.00200 <0.0007 <0.00200 <0.00200 <0.00200 NA <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <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 <0.0100 <0.02 <0.0100 <0.0100 <0.0100 NA <0.0100 0.00245 J 0.00165 J 0.00332 J <0.0100 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 <0.100 0.134 0.248 1.83 0.224 NA 0.529 0.120 0.246 0.781 0.129 <0.100 0.0204 J <0.100 <0.100 <0.100 NA <0.100 <0.100 0.353 0.0358 J <0.100 <0.00500 <0.002 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00500 <0.00500 <0.0300 <0.0300 <0.0300 NA <0.0300 <0.00600 <0.00600 <0.00600 <0.00600 0.0719 0.0636 0.0560 0.0524 0.0223 NA 0.0174 0.0222 0.0174 0.0131 0.0467 0.0671 2.180 0.358 0.351 2.300 NA 0.661 1.450 0.534 0.909 0.650 <0.0100 <0.002 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 0.00839 J <0.0100 0.0155 <0.0100 <0.0100 <0.0100 <0.0100 NA 0.018 <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 <0.00500 <0.00500 NA <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 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND NA 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 5 of 16 Project Number 221020 Table 2 1st Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C 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 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 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 o Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the U Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 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 Qualifi 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 q 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 09/20/2019 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 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 0.125 J <0.0500 <0.0500 0.0331 J <12.5 <12.5 <25.0 NA <1.25 <0.625 <1.25 J4 <5.00 J4 <0.500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.000356 J <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 NA NA NA NA NA NA 0.000118 J NA NA NA NA NA NA NA NA NA 0.0102 J <0.0250 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 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <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 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 0.00203 J <0.00500 <0.00500 <0.00500 <1.25 <1.25 <2.50 NA <0.125 <0.0625 <0.125 <0.500 <0.0500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 0.00202 J <1.25 <1.25 <2.50 J4 NA <0.125 0.00412 J 0.00339 J <0.500 <0.0500 <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 <2.50 NA <0.125 C3 <0.0625 <0.125 <0.500 <0.0500 <0.00100 0.000902 J 0.000623 J NA 0.000919 J 0.00092 J 0.000896 0.0388 0.00103 0.00103 3.92 3.85 4.08 5.75 NA 4.010 6.750 4.720 4.07 4.590 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 0.000737 J <0.00100 <0.00100 0.0916 0.135 J 0.140 J <0.500 NA 0.111 0.147 0.133 0.156 C5 0.172 0.00291 0.0359 0.0269 NA 0.0193 0.0407 0.0267 0.277 0.0171 0.0206 25.200 40.400 68.300 76.400 NA 20.700 30.400 30.700 52.6 <0.0100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.0079 <0.250 <0.250 <0.500 NA 0.00747 J 0.0138 0.0107 J 0.0312 J 0.0186 <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 <0.500 NA <0.0250 C3 <0.0125 <0.0250 <0.100 <0.0100 <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 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.000656 J <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J4 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 0.005 J <0.0100 <0.0100 <0.0100 <2.50 <2.50 <5.00 NA <0.250 <0.125 <0.250 <1.00 <0.100 <0.00500 <0.00500 <0.00500 NA <0.00500 J4 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 0.0807 <1.25 <1.25 <2.50 NA 0.032 J 0.0184 J <0.125 <0.500 <0.0500 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 0.001 J <0.0100 <0.0100 <0.0100 <2.50 <2.50 <5.00 NA <0.250 <0.125 <0.250 <1.00 <0.100 <0.00500 <0.00500 J4 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <1.25 <1.25 <2.50 NA <0.125 <0.0625 <0.125 <0.500 <0.0500 <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 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.000192 J <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <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 <0.500 NA <0.0250 C3 0.0799 <0.0250 <0.100 0.125 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.0375 <0.250 <0.250 <0.500 NA 0.0323 0.0166 0.0266 0.0456 J 0.0402 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J4 <0.000500 0.000605 J <0.00100 <0.00100 0.0456 <0.250 0.0902 J <0.500 NA 0.0320 0.0400 0.0378 0.0535 J 0.0694 <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 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0250 <0.0250 <0.100 <0.0100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 0.00322 <0.00100 <0.00100 0.260 0.307 0.418 0.655 J4 NA 0.463 0.313 0.247 0.286 C5 0.296 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 0.000362 J <0.00100 <0.00100 0.0541 <0.250 0.0949 J <0.500 NA 0.0622 0.0696 0.0603 0.0802 J 0.0909 <0.00100 <0.00100 <0.00100 J4 NA 0.00037 J <0.00100 <0.000500 0.000701 J <0.00100 <0.00100 0.0151 <0.250 0.204 B, J, J4 0.19 J NA 0.0389 0.0431 0.0515 0.0796 J 0.109 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.625 <0.625 <1.25 NA <0.0625 <0.0625 <0.0625 <0.250 <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 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <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 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <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 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.00100 0.00322 0.00292 NA 0.00138 0.00217 0.000570 0.001970 0.000931 J 0.001560 0.00726 <0.250 <0.250 <0.500 NA <0.0250 C3, J4 0.00954 J 0.0121 J <0.100 0.0134 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.750 <0.750 <1.50 NA <0.0750 <0.0375 <0.0250 <0.300 <0.0300 0.00172 <0.00300 0.00237 J <0.00300 NA 0.00488 0.000952 0.00365 0.00320 BQ 0.00 0.00148 B 0.0246 0.0392 0.0745 0.102 NA 0.0479 0.0479 0.071 0.122 0.0854 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00111 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00111 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00111 <0.00100 NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 NA NA NA NA 0.000855 <0.00100 <0.00100 <0.00100 <0.500 <0.0500 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 0.000474 J <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 0.00153 J <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 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <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 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <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 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 0.000290 J <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 0.00107 J <0.00333 <0.00300 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 J4 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 J4 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 J4 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 J4 <0.0100 <0.00300 <0.00300 <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 <0.00300 <0.00333 <0.00300 <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 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 0.000673 J <0.0100 <0.0100 <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 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.000584 J <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 J4 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 J4 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.000100 <0.000100 NA <0.000100 NA <0.00100 <0.00111 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 J4 <0.00100 0.0000152 J <0.0000500 <0.0000500 0.000019 J NA <0.0000500 NA <0.00100 <0.00111 J4 <0.00100 <0.000250 0.0000455 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 0.0000915 J <0.0000500 <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.500 <0.0500 <0.0000500 0.0000103 J <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 0.0000171 J <0.000250 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.000250 0.0000179 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA 0.0000294 J <0.0000500 <0.000250 <0.000250 NA <0.000250 NA NA NA NA <0.000250 0.0000286 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA 0.0000468 J <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA ND ND ND ND NA ND NA NA NA NA ND ND ND ND NA ND ND NA NA NA 0.146 0.128 0.160 0.167 NA 0.185 0.186 0.143 0.32 0.205 <0.0100 0.0238 0.0175 0.0177 NA <0.0500 0.054 0.0246 0.0545 0.0264 0.147 0.118 0.128 0.134 NA 0.115 0.132 0.219 0.159 0.138 0.989 0.885 0.847 0.834 NA 0.0253 0.0241 0.0200 0.0224 0.0189 <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 NA 0.00277 J 0.00141 J 0.000992 J <0.00200 <0.00200 <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 <0.0100 <0.0100 <0.0100 NA 0.0101 J 0.00221 J <0.0100 0.003 J <0.0100 <0.100 0.189 0.391 0.466 NA 0.121 0.422 0.0294 J 0.0637 J <0.100 <0.100 0.0309 J <0.100 <0.100 NA <0.500 11.700 0.0639 J 4.810 <0.100 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.0300 <0.0300 <0.0060 <0.00600 0.00765 0.0312 0.0544 0.0532 0.0551 NA 0.0456 0.0416 0.00579 J 0.00559 J <0.0100 1.390 2.380 2.520 2.570 NA 20.600 12.200 8.570 6.570 6.190 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 0.00801 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0500 0.0322 <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 <0.00500 NA <0.0250 <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 0.000125 J <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 NA ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND MW-14SMW-13D Page 6 of 16 Project Number 221020 Table 2 1st Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C 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 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 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 o Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the U Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 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 Qualifi 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 q 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 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 <0.0500 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA 0.000735 NA NA NA 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 <0.00100 <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 <0.00100 <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 <0.00500 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 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.125 <0.0500 <0.0500 <0.00500 NA <0.00500 C3 <0.00250 <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 <0.00500 0.58 0.615 0.444 0.484 NA 0.175 0.173 0.230 0.19 0.218 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 <0.00100 <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 0.00322 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 0.000799 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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.0100 <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 <0.00500 <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 <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 <0.00500 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 J4 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <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 0.0160 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 <0.00100 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 <0.00100 <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 <0.00250 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00300 <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 0.0216 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 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 <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 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 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 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 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 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 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 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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <0.0000500 <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 <0.0000500 <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 <0.0000500 <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 <0.0000500 <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 <0.0000500 <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 <0.0000500 <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 <0.0000500 <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 <0.0000500 <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 <0.0000500 <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 <0.0000500 <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 <0.0000500 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 <0.000250 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 <0.0000500 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 <0.0000500 <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 <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 <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 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 0.188 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 0.201 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 <0.00200 <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 <0.0100 <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 <0.100 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 <0.00500 <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 0.117 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 <0.0100 <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 <0.00500 <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 <0.000200 <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 7 of 16 Project Number 221020 Table 2 1st Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C 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 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 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 o Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the U Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 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 Qualifi 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 q 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 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 <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 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.0500 C3 <0.0500 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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA <0.000500 <0.000500 NA NA NA NA NA NA NA NA NA NA <0.000500 NA 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 <0.00100 <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 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00500 <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 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <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 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 NA <0.00500 <0.00500 <0.00250 <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 <0.00100 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 <0.00100 0.000293 J <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <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 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <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 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 0.00178 <0.00100 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <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 <0.00100 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 C3 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <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 <0.0100 <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 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 C3 <0.0100 <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 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <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 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 C3 <0.0100 <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 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 J4 <0.00500 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <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 <0.00100 <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 <0.00100 <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 NA <0.00100 <0.00100 <0.000500 <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 <0.00100 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J4 <0.00100 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.00100 .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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <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 <0.00250 <0.00250 NA <0.00250 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <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 <0.00100 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <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 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <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 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <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 0.000438 0.00251 J 0.00333 <0.00300 NA 0.00282 <0.000400 0.00041 0.000383 J 0.00308 NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.0100 <0.00100 <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 <0.0100 NA NA <0.0100 <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 NA NA NA NA NA NA <0.00100 <0.0100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.0100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.0100 <0.00100 <0.00100 NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 NA NA NA NA NA <0.00100 <0.00100 <0.001 <0.00500 <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 <0.00300 <0.00300 NA <0.00300 <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 <0.00300 <0.00300 NA <0.00300 <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 0.000308 J <0.00300 NA <0.00300 <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 <0.00300 <0.00300 NA <0.00300 <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 <0.00300 <0.00300 NA <0.00300 <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 <0.0100 <0.0100 NA <0.0100 <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 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 0.000525 J <0.0100 <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 <0.00300 <0.00300 NA <0.00300 <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 <0.0100 <0.0100 NA <0.0100 <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 <0.0100 <0.0100 NA <0.0100 <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 <0.0100 <0.0100 NA <0.0100 <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 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <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 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <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 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <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 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <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 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <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 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <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 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <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 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <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 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <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 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <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 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <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 <0.000250 0.0000312 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <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 <0.0000500 0.00000867 J <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <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 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <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 <0.000250 0.0000123 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA <0.000250 0.0000194 J <0.000250 <0.000250 NA <0.000250 NA <0.000250 NA NA NA NA NA NA <0.000250 0.0000226 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA ND ND ND ND NA ND NA ND NA NA NA NA NA NA ND ND ND ND NA ND NA 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 0.0228 <0.0100 0.00657 J 0.0156 NA 0.00911 J 0.0291 0.0224 B 0.0374 0.0132 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 0.205 0.115 0.0886 0.101 NA 0.124 0.138 0.149 0.155 0.135 <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 <0.00200 <0.00200 <0.00200 NA <0.00200 <0.00200 0.000499 J <0.00200 <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 <0.0100 <0.0100 <0.0100 NA <0.0100 <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 0.0262 J <0.100 <0.100 NA <0.100 <0.100 0.0351 J 0.681 <0.100 <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 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 0.00478 <0.00600 0.0565 0.163 0.147 0.146 NA 0.136 NA 0.0901 NA NA 0.151 0.127 0.159 0.155 0.360 0.267 0.343 0.160 NA 0.328 0.136 0.180 0.13 0.255 <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 <0.0100 <0.0100 <0.0100 NA 0.0175 <0.0100 <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 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.0100 <0.00500 <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 <0.000200 <0.000200 <0.000200 NA <0.000200 <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 NA ND ND ND ND ND 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) DUP-1 (MW-16 Duplicate)MW-16 Page 8 of 16 Project Number 221020 Table 2 1st Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C 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 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 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 o Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the U Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 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 Qualifi 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 q 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 02/20/2020 6/23/2020 09/23/2020 11/4/2020 03/19/2021 10/5/2021 04/01/2022 10/25/2022 03/28/2023 10/11/2021 04/04/2022 10/25/2022 03/29/2023 10/11/2021 04/04/2022 10/26/2022 03/29/2023 10/11/2021 04/04/2022 10/26/2022 10/26/2022 03/29/2023 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.0500 C3 <0.0500 J4 <0.0250 <0.0500 J3 J4 <0.0500 <0.0500 0.013 J <0.0500 J3 J4 <0.0500 <0.0500 <0.0250 <0.0500 J3 J4 <0.0500 <0.0500 <0.0500 <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 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA <0.000500 NA NA NA <0.000500 NA NA NA <0.000500 NA NA NA <0.000500 NA NA NA #N/A <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 <0.000500 <0.00100 <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 J4 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00250 <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 <0.000500 <0.00500 <0.00500 <0.00500 0.000205 J <0.00500 <0.00500 <0.00500 <0.000500 <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 <0.00250 <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 C3 <0.00500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 0.000512 J 0.000407 J <0.00100 0.000916 0.00521 0.00656 0.00705 <0.000500 0.000713 J 0.00081 J 0.000715 J <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 <0.000500 0.000212 J <0.00100 <0.00100 <0.000500 0.000165 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 0.000447 J <0.00100 <0.00100 <0.00100 <0.000500 0.00103 0.00103 0.00123 0.00250 0.03680 0.04490 0.05400 0.00104 0.0401 0.0504 0.044 0.0346 <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 <0.000500 <0.00100 0.000136 J <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 <0.000500 <0.00100 <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 C3 <0.00100 <0.000500 <0.00100 <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 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <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 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 C3 <0.0100 <0.00500 <0.0100 J3 <0.0100 <0.0100 0.00166 J <0.0100 J3 <0.0100 <0.0100 <0.00500 <0.0100 J3 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 C3 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 0.000486 J <0.0100 <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 J4 <0.00500 <0.00250 J4 <0.00500 C3 J3 <0.00500 <0.00500 <0.00250 J4 <0.00500 C3 J3 <0.00500 <0.00500 <0.00250 J4 <0.00500 C3 J3 <0.00500 <0.00500 <0.00500 <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 <0.000500 <0.00100 <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 <0.000500 <0.00100 <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 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <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 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <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 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <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 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <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 <0.00100 <0.00100 <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 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 0.000554 J <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.000162 J 0.00100 J 0.000674 J <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 J4 <0.00100 <0.000500 <0.00100 <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 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <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 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <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 <0.000500 <0.00100 <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 <0.000500 <0.00100 <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 <0.000500 <0.00100 <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 <0.000500 0.000291 J 0.000448 J <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 C3 <0.00100 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 0.00236 <0.00300 <0.00300 <0.00300 NA 0.00163 0.00121 0.00374 B 0.0014 0.00185 NA 0.00135 0.000583 0.00159 B NA 0.113 0.106 0.149 E NA 0.0128 0.0133 0.0134 0.00508 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 NA NA NA <0.0100 <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 <0.001 <0.001 NA NA <0.001 <0.001 NA <0.00100 <0.001 <0.001 NA NA NA NA NA NA NA <0.001 <0.001 <0.001 0.0000636 J <0.00100 <0.00100 <0.001 <0.001 NA NA <0.001 <0.001 NA <0.00100 <0.001 <0.001 NA NA NA NA NA NA NA <0.001 <0.001 <0.001 0.0000836 J <0.00100 <0.00100 <0.001 <0.001 NA NA <0.001 <0.001 NA <0.00100 <0.001 <0.001 NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 <0.00100 NA NA <0.00100 <0.00100 NA <0.00500 <0.00100 <0.00100 NA NA 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 NA <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA NA 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 NA <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA NA 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 NA <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA NA 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 NA <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA NA 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 NA <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA NA 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 NA <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA NA 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 NA <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA NA NA <0.00300 0.00311 0.00311 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA NA 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 NA <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA NA 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 NA <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA NA 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 NA <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA 0.0000636 J <0.00100 <0.00100 NA <0.00100 NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA 0.0000836 J <0.00100 <0.00100 NA <0.00100 NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA 0.000104 J <0.00100 <0.00100 NA <0.00100 NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA NA NA <0.000250 0.0000267 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 NA <0.00100 NA NA NA <0.00100 NA <0.00500 NA <0.00100 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA 0.000111 J <0.00100 <0.00100 NA <0.00100 NA NA NA <0.00100 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 <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 ND ND ND ND NA ND NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 0.0100 0.00798 J NA <0.0100 <0.0100 0.0129 B <0.0100 <0.0100 0.0801 0.057 0.065 0.0425 0.00561 J 0.122 0.156 0.114 0.360 0.244 0.323 0.324 0.054 0.183 0.196 0.172 0.169 NA 0.157 0.184 0.162 0.15 0.148 0.208 0.253 0.253 0.223 0.104 0.322 0.312 0.24 0.352 0.45 0.446 0.447 0.122 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 0.000567 J <0.00200 <0.00200 <0.00200 0.000513 J <0.00200 <0.00200 <0.00200 0.000640 J <0.00200 <0.00200 <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.00195 J <0.0100 <0.0100 <0.0100 0.004 J <0.0100 <0.0100 <0.0100 0.00148 J <0.0100 <0.0100 <0.100 <0.100 0.0623 J <0.100 NA <0.100 <0.100 <0.100 0.344 <0.100 0.0867 J 0.0741 B J 0.47 <0.100 <0.100 0.0198 B J 0.802 <0.100 0.133 <0.100 1.02 1.02 <0.100 <0.00500 <0.00500 <0.00500 0.00365 J NA <0.00600 <0.00600 <0.00600 0.00427 J <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 0.0808 0.153 0.359 0.317 NA 0.270 0.260 0.27 0.151 0.118 0.0279 0.229 0.196 0.178 0.0193 0.183 0.137 0.139 0.112 0.267 0.21 0.213 0.0308 <0.0100 <0.0100 <0.0100 <0.0100 NA 0.0127 <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 <0.0100 <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 <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 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 <0.000200 ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND mg/L mg/L mg/L MW-18 MW-20 MW-21 DUP-2 (MW-21 Duplicate)MW-21 mg/L mg/L MW-19 Page 9 of 16 Project Number 221020 Table 2 1st Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C 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 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 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 o Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the U Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 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 Qualifi 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 q 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 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 10/5/2021 04/05/2022 10/26/2022 03/29/2023 <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 J3 J4 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0500 <0.0250 <0.0500 J3 J4 <0.0500 <0.0500 <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 <0.000500 <0.00100 <0.00100 <0.00100 0.000238 J NA NA NA NA NA NA NA NA NA <0.000500 NA NA NA NA NA NA NA NA NA NA <0.000500 NA NA NA <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 <0.000500 <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 NA <0.00100 <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 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 J5 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00250 <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 <0.000500 <0.00500 <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 C3 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 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 <0.000500 <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 NA <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 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 0.000346 J <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 <0.000500 <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 NA <0.00100 <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 NA <0.00100 <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 NA <0.00100 <0.00100 <0.00100 <0.000500 <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 <0.000500 <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 J3 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.00500 <0.0100 J3 <0.0100 <0.0100 <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 <0.00250 <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 NA <0.0100 <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <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 <0.00250 <0.00500 C3 J3 <0.00500 <0.00500 <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 <0.000500 <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 NA <0.00100 <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 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 <0.000500 <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 NA <0.00100 <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 NA <0.00100 <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 NA <0.00100 <0.00100 C3 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.00100 C3 <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 J5 <0.00100 NA <0.00100 <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 NA <0.00100 <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 NA <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <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 NA <0.00250 <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 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <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 NA <0.00100 <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 NA <0.00100 <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 NA <0.00100 <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 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 NA 0.00351 0.00687 B 0.004 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 0.000464 0.000764 0.00174 B 0.000706 B <0.00100 <0.00100 NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 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 <0.0100 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 <0.00100 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 <0.00100 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 <0.00100 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 <0.001 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 <0.001 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 <0.001 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 <0.00100 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 <0.00300 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 <0.00300 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 <0.00300 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 <0.00300 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 <0.00300 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 <0.0100 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 <0.0100 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 <0.00300 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 <0.0100 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 <0.0100 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 <0.0100 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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 NA NA NA NA NA NA NA NA NA NA 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 0.0336 0.0142 0.107 0.015 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 0.226 0.209 0.242 0.223 <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 <0.00200 <0.00200 <0.00200 <0.00200 <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 <0.0100 <0.0100 <0.0100 <0.0100 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 <0.100 <0.100 3.03 <0.100 <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 <0.00600 <0.00600 <0.00600 <0.00600 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 0.476 0.391 0.438 0.355 <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 <0.0100 <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 NA <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 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 <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 NA ND ND ND ND ND ND mg/L mg/L mg/L mg/L GMW-2 DUP-1 (GMW-2 Duplicate) GMW-2MW-22 GMW-1 mg/L Page 10 of 16 Project Number 221020 Table 2 1st Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C 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 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 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 o Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the U Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 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 Qualifi 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 q 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 02/19/2020 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 <0.0500 <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 <0.00100 <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 NA NA NA NA NA NA <0.000500 NA NA NA NA NA NA NA NA NA NA <0.000500 NA NA NA <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 <0.00100 <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 <0.00500 <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 <0.00500 <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 <0.00500 <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 <0.00100 <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 <0.00100 <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 0.00265 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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.0100 <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 <0.00500 <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 <0.0100 <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 <0.00500 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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J4 <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 <0.00100 <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 <0.00100 <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 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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00100 <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 <0.00300 <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 0.00932 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 <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 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 ND ND ND ND ND NA ND NA NA NA NA 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 0.204 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 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 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 0.0456 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 <0.00500 <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 0.225 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 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 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 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 NA ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND mg/L mg/L mg/L GMW-4GMW-4 DUP-2 (GMW-4 Duplicate) GMW-3 mg/L mg/L Page 11 of 16 Project Number 221020 Table 2 1st Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C 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 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 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 o Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the U Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 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 Qualifi 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 q 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 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 09/18/2019 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 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.250 <0.0500 <0.0500 <0.500 <0.500 NA 0.116 <0.0500 <0.0250 <0.0500 <0.0500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 NA NA NA NA NA NA <0.000500 NA NA N/A NA NA NA NA NA NA <0.000500 NA NA <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <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 <0.0100 <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 <0.00500 <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 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.0250 <0.00500 <0.00500 <0.0500 0.00151 J NA 0.000152 J 0.000816 J 0.000798 0.000791 J 0.000781 J <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.0250 <0.00500 <0.00500 <0.0500 <0.0500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <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 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 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 0.0121 0.00979 J 0.0131 NA 0.000917 J 0.013 0.0142 0.0133 0.0143 0.00130 <0.00100 0.000374 J NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 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 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <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 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <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 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <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 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <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 <0.0100 <0.0100 NA <0.00100 <0.00100 J4 <0.000500 <0.00100 <0.00100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0500 <0.0100 <0.0100 <0.100 <0.100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0250 <0.00500 <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 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0500 <0.0100 <0.0100 <0.100 <0.100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0250 <0.00500 <0.00500 <0.0500 <0.0500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 C3 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <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 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00500 <0.00100 0.00302 <0.0100 <0.0100 J3, J6 NA <0.00100 <0.00100 <0.000500 <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 <0.0100 <0.0100 NA <0.00100 0.000870 J 0.000737 0.000837 J 0.00132 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 J4 <0.000500 <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 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00100 <0.00100 <0.0100 <0.0100 NA <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 <0.00500 <0.00100 0.0325 0.0269 0.0295 NA 0.00260 0.0320 0.0292 0.0268 0.02340 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 0.00307 <0.0100 <0.0100 NA 0.000351 J 0.00335 0.00260 0.00286 0.00339 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <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 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.0125 <0.00250 <0.00250 <0.0250 <0.0250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <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 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <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 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 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 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.0150 <0.00300 <0.00300 <0.0300 <0.0300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 0.00823 0.00449 0.00558 0.00301 NA 0.00694 0.00487 B 0.00591 0.00508 0.00453 1.990 1.880 2.960 3.690 NA 2.650 E 1.410 E 2.450 E 2.85 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 0.0344 0.0253 0.0465 0.0293 NA 0.0173 0.0600 0.0120 0.0583 0.0271 <0.0100 <0.0100 <0.0100 <0.0100 NA 0.00617 J <0.0100 <0.0100 <0.0100 0.308 0.307 0.336 0.276 NA 0.295 0.330 0.287 0.317 0.290 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 NA 0.000491 J 0.00107 J <0.00200 <0.00200 <0.00200 <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 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.00154 <0.0100 <0.0100 NA 0.00265 J 0.00271 J <0.0100 <0.0100 <0.100 0.0266 J 2.40 <0.100 NA 0.0207 J 2.010 0.0279 J 2.110 <0.100 <0.100 <0.100 <0.100 <0.100 NA <0.100 NA <0.100 <0.100 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00500 <0.00500 <0.00500 <0.00600 NA 0.00485 J <0.00600 <0.00600 <0.00600 0.627 0.766 0.615 0.607 NA 0.592 0.570 0.567 0.540 0.520 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 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <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 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 <0.000200 <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 ND ND ND ND NA ND ND ND ND ND ND ND ND ND NA ND ND ND ND mg/L GMW-6GMW-5 mg/L mg/L mg/L Page 12 of 16 Project Number 221020 Table 2 1st Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C 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 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 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 o Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the U Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 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 Qualifi 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 q 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 <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 <0.00100 <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 NA NA NA NA NA NA <0.000500 NA NA NA NA NA NA NA NA NA NA <0.000500 NA NA 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 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.0100 <0.00100 <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 <0.00500 <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 <0.0250 <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 <0.0250 <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 0.0385 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 0.00138 <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 0.444 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 0.00115 <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 <0.00500 <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 <0.00500 <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 <0.00500 <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 <0.00500 <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 <0.0100 <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 <0.00500 <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 <0.0100 <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 <0.00500 <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 <0.00100 <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 <0.00500 <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 0.00145 <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 0.00255 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 <0.00500 <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 <0.00500 <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 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.00100 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 <0.00100 <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 0.00189 <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 <0.00250 <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 <0.00100 <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 <0.00500 <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 <0.00500 <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 <0.00500 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 <0.00300 <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 0.177 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 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 <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 <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 <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 <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 <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 <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 <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 0.00135 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 <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 ND ND ND ND NA ND 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 0.242 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 <0.00200 <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 <0.0100 <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 <0.100 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 <0.00500 <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 0.401 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 <0.0100 <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 <0.00500 <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 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 ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND mg mg mg mg mg GMW-7 DUP GMW-7 (GMW-7 Duplicate) mg/L GMW-8 Page 13 of 16 Project Number 221020 Table 2 1st Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C 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 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 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 o Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the U Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 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 Qualifi 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 q 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 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 <0.00500 <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 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.0100 <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 g/L g/L g/L g/L g/L INJ-3 mg/L INJ-3 DUP-2 (INJ-3 Duplicate) Page 14 of 16 Project Number 221020 Table 2 1st Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C 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 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 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 o Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the U Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 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 Qualifi 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 q 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 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 <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 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <10.0 <10.0 <0.0100 <0.00100 <0.250 NA <0.0200 NA <0.00100 <0.0100 <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 INJ-4 INJ-5 Page 15 of 16 Project Number 221020 Table 2 1st Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C 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 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 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 o Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the U Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 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 Qualifi 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 q 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 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 <0.00500 <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 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <10.0 <10.0 <10.0 <0.0500 <0.00100 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.0250 <0.0250 <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-80XDUP (INJ-8 DuINJ-6 mg/L mg/L mg/L Page 16 of 16 LOW FLOW SAMPLING DATA SHEET SHEET 1 OF 1 SITE: DATE: WEATHER: MONITOR WELL #: no yes no bolts PUMPING DEPTH TO WATER RATE (ft below TOC) (ml/min) READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* 15:40 x 7.31 NA 1765 NA -50.6 NA 0.46 NA NA NA 13.7 NA 120 6.75 15:45 x 7.31 0.0% 1766 -0.1% -49.6 1.0 0.39 15.2% NA #VALUE! 13.9 -1.5% 120 6.81 15:50 x 7.32 -0.1% 1776 -0.6% -45 4.6 0.32 17.9% NA #VALUE! 13.5 2.9% 120 6.9 15:55 x 7.31 0.1% 1766 0.6% -47.5 2.5 0.3 6.3% NA #VALUE! 13.8 -2.2% 120 6.97 16:00 x 7.31 0.0% 1767 -0.1% -49.5 2.0 0.22 26.7% NA #VALUE! 13.9 -0.7% 120 7.03 16:05 x 7.31 0.0% 1764 0.2% -49.5 0.0 0.21 4.5% NA #VALUE! 13.9 0.0% 120 7.08 16:10 x x 7.31 0.0% 1763 0.1% -48.8 0.7 0.2 4.8% NA #VALUE! 13.9 0.0% 120 7.09 *INDICATOR PARAMETERS HAVE STABLIZED WHEN 3 CONSECUTIVE READINGS ARE WITHIN: ± 0.1 for pH; ± 3% for Sp. Cond. and Temp.; ± 10 mv for Redox Potential; and ± 10% for Dissolved Oxygen (Greater than 0.5 mg/L) and Turbidity (Greater than 5 NTU) Chromalox PROJECT NUMBER: 117-0551002 3/29/2023 SAMPLED BY: Aaron Pettley Cloudy, Windy, 50 F GMW-2 WELL DIA: 2" 27.1 WELL CAP PRESENT: DEPTH TO WATER BEFORE PUMP INSTALLATION: 5.6 BACKGROUND: COVER LOCKED: STANDING WATER: yes, pumped out WELL DEPTH: DAMAGE PRESENT: (degrees C)TIME PU R G I N G SA M P L I N G pH SPECIFIC REDOX DISSOLVED TURBIDITY TEMPERATURE (pH units) CONDUCTIVITY POTENTIAL OXYGEN (NTU) COMMENTS: Purged ___1.1__ gallons pre-sampling; Water sampled color: __cloudy, slight tan tint_____. Samples collected: 3 HCl preserved vials and 3 unpreserved amber 1 liter bottles, stored on ice NA= not applicable; NR = not recorded (mS/cm) (mv) (mg/l) LOW FLOW SAMPLING DATA SHEET SHEET 1 OF 1 SITE: DATE: WEATHER: MONITOR WELL #: no yes No PUMPING DEPTH TO WATER RATE (ft below TOC) (ml/min) READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* 14:20 x 7.66 NA 2891 NA -90.7 NA 0.43 NA NA NA 13.5 NA 110 5.73 14:30 x 7.63 0.4% 2682 7.2% -101.7 11.0 0.22 48.8% NA #VALUE! 13.7 -1.5% 110 6.56 14:35 x 7.6 0.4% 2145 20.0% -96.6 5.1 0.2 9.1% NA #VALUE! 13.8 -0.7% 110 7.2 14:40 x 7.67 -0.9% 1595 25.6% -80.3 16.3 0.18 10.0% NA #VALUE! 13.9 -0.7% 110 7.7 14:45 x 7.67 0.0% 1582 0.8% -78.1 2.2 0.17 5.6% NA #VALUE! 14 -0.7% 110 7.81 14:50 x 7.66 0.1% 1580 0.1% -75.3 2.8 0.17 0.0% NA #VALUE! 14 0.0% 110 7.83 14:55 x x 7.65 0.1% 1548 2.0% -71.2 4.1 0.16 5.9% NA #VALUE! 14 0.0% 110 7.86 *INDICATOR PARAMETERS HAVE STABLIZED WHEN 3 CONSECUTIVE READINGS ARE WITHIN: ± 0.1 for pH; ± 3% for Sp. Cond. and Temp.; ± 10 mv for Redox Potential; and ± 10% for Dissolved Oxygen (Greater than 0.5 mg/L) and Turbidity (Greater than 5 NTU) Chromalox PROJECT NUMBER: 117-0551002 3/29/2023 SAMPLED BY: Aaron Pettley Cloudy, Windy, 50 F MW-21 WELL DIA: 2" 26.65 WELL CAP PRESENT: DEPTH TO WATER BEFORE PUMP INSTALLATION: 6.65 BACKGROUND: COVER LOCKED: STANDING WATER: yes, pumped out WELL DEPTH: DAMAGE PRESENT: (degrees C)TIME PU R G I N G SA M P L I N G pH SPECIFIC REDOX DISSOLVED TURBIDITY TEMPERATURE (pH units) CONDUCTIVITY POTENTIAL OXYGEN (NTU) COMMENTS: Purged _1.16____ gallons pre-sampling; Water sampled color: __cloudy, light tan_____. Samples collected: 3 HCl preserved vials and 3 unpreserved amber 1 liter bottles, stored on ice NA= not applicable; NR = not recorded (mS/cm) (mv) (mg/l) LOW FLOW SAMPLING DATA SHEET SHEET 1 OF 1 SITE: DATE: WEATHER: MONITOR WELL #: no yes no bolts PUMPING DEPTH TO WATER RATE (ft below TOC) (ml/min) READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* 13:00 x 7.18 NA 1652 NA 110.9 NA 6.21 NA NA NA 9.9 NA 120 6.51 13:05 x 7.17 0.1% 1664 -0.7% 110.5 0.4 5.9 5.0% NA #VALUE! 9.9 0.0% 120 6.53 13:15 x 7.18 -0.1% 1471 11.6% 117.2 6.7 6.48 -9.8% NA #VALUE! 9.7 2.0% 120 7.8 13:20 x 7.21 -0.4% 1451 1.4% 120.6 3.4 6.42 0.9% NA #VALUE! 9.8 -1.0% 120 7.86 13:25 x 7.22 -0.1% 1445 0.4% 121.6 1.0 6.4 0.3% NA #VALUE! 9.8 0.0% 100 7.91 13:30 x 7.23 -0.1% 1448 -0.2% 120.6 1.0 6.35 0.8% NA #VALUE! 9.9 -1.0% 100 7.9 13:35 x x 7.23 0.0% 1450 -0.1% 120.1 0.5 6.33 0.3% NA #VALUE! 9.9 0.0% 100 7.88 *INDICATOR PARAMETERS HAVE STABLIZED WHEN 3 CONSECUTIVE READINGS ARE WITHIN: ± 0.1 for pH; ± 3% for Sp. Cond. and Temp.; ± 10 mv for Redox Potential; and ± 10% for Dissolved Oxygen (Greater than 0.5 mg/L) and Turbidity (Greater than 5 NTU) Chromalox PROJECT NUMBER: 117-0551002 3/29/2023 SAMPLED BY: Aaron Pettley Cloudy, windy, 50 F MW-11 WELL DIA: 2" 19 WELL CAP PRESENT: DEPTH TO WATER BEFORE PUMP INSTALLATION: 5.3 BACKGROUND: COVER LOCKED: STANDING WATER: yes, pumped out WELL DEPTH: DAMAGE PRESENT: (degrees C)TIME PU R G I N G SA M P L I N G pH SPECIFIC REDOX DISSOLVED TURBIDITY TEMPERATURE (pH units) CONDUCTIVITY POTENTIAL OXYGEN (NTU) COMMENTS: Purged __1.0___ gallons pre-sampling; Water sampled color: ___clear____. Samples collected: 3 HCl preserved vials and 3 unpreserved amber 1 liter bottles, stored on ice NA= not applicable; NR = not recorded (mS/cm) (mv) (mg/l) LOW FLOW SAMPLING DATA SHEET SHEET 1 OF 1 SITE: DATE: WEATHER: MONITOR WELL #: no yes no PUMPING DEPTH TO WATER RATE (ft below TOC) (ml/min) READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* 8:10 x 8.85 NA 3845 NA 112 NA 1.93 NA NA NA 11.9 NA 140 8.71 8:15 x 9.07 -2.5% 3702 3.7% 97.7 14.3 2.83 -46.6% NA #VALUE! 10.7 10.1% 120 8.78 8:20 x 9.1 -0.3% 3660 1.1% 94.9 2.8 2.75 2.8% NA #VALUE! 11.8 -10.3% 120 8.81 8:25 x 9.12 -0.2% 3623 1.0% 92.9 2.0 2.76 -0.4% NA #VALUE! 12 -1.7% 120 8.93 8:30 x 9.13 -0.1% 3620 0.1% 91.5 1.4 2.73 1.1% NA #VALUE! 11.9 0.8% 120 8.95 8:35 x 9.11 0.2% 3627 -0.2% 91.2 0.3 2.71 0.7% NA #VALUE! 12 -0.8% 120 8.98 *INDICATOR PARAMETERS HAVE STABLIZED WHEN 3 CONSECUTIVE READINGS ARE WITHIN: ± 0.1 for pH; ± 3% for Sp. Cond. and Temp.; ± 10 mv for Redox Potential; and ± 10% for Dissolved Oxygen (Greater than 0.5 mg/L) and Turbidity (Greater than 5 NTU) Chromalox PROJECT NUMBER: 117-0551002 3/29/2023 SAMPLED BY: Aaron Pettley cloudy, 51 GW-13D WELL DIA: 2" 36.92 WELL CAP PRESENT: DEPTH TO WATER BEFORE PUMP INSTALLATION: 8.61 BACKGROUND: COVER LOCKED: STANDING WATER: yes, pumed out WELL DEPTH: DAMAGE PRESENT: (degrees C)TIME PU R G I N G SA M P L I N G pH SPECIFIC REDOX DISSOLVED TURBIDITY TEMPERATURE (pH units) CONDUCTIVITY POTENTIAL OXYGEN (NTU) COMMENTS: Purged __1.1___ gallons pre-sampling; Water sampled color: __Brown tint_____. Samples collected: 3 HCl preserved vials and 3 unpreserved amber 1 liter bottles, stored on ice NA= not applicable; NR = not recorded (mS/cm) (mv) (mg/l) LOW FLOW SAMPLING DATA SHEET SHEET 1 OF 1 SITE: DATE: WEATHER: MONITOR WELL #: no yes no bolts PUMPING DEPTH TO WATER RATE (ft below TOC) (ml/min) READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* 9:15 x 6.94 NA 27371 NA 174.6 NA 3.02 NA NA NA 9.3 NA 90 6.65 9:20 x 6.96 -0.3% 27335 0.1% 231 56.4 1.86 38.4% NA #VALUE! 9.5 -2.2% 90 6.66 9:25 x 6.96 0.0% 27377 -0.2% 294 63.0 1.07 42.5% NA #VALUE! 9.7 -2.1% 90 7.04 9:30 x 6.96 0.0% 27420 -0.2% 301.1 7.1 1.02 4.7% NA #VALUE! 9.7 0.0% 90 7.1 9:35 x 6.97 -0.1% 27431 0.0% 307.6 6.5 1 2.0% NA #VALUE! 9.3 4.1% 90 7.11 9:40 x 6.96 0.1% 27436 0.0% 310.1 2.5 0.98 2.0% NA #VALUE! 9.7 -4.3% 90 7.15 *INDICATOR PARAMETERS HAVE STABLIZED WHEN 3 CONSECUTIVE READINGS ARE WITHIN: ± 0.1 for pH; ± 3% for Sp. Cond. and Temp.; ± 10 mv for Redox Potential; and ± 10% for Dissolved Oxygen (Greater than 0.5 mg/L) and Turbidity (Greater than 5 NTU) Chromalox PROJECT NUMBER: 117-0551002 3/29/2023 SAMPLED BY: Aaron Pettley Cloudy, 51 F MW-13S WELL DIA: 2" 17.05 WELL CAP PRESENT: DEPTH TO WATER BEFORE PUMP INSTALLATION: 5.76 BACKGROUND: COVER LOCKED: STANDING WATER: yes, pumped out WELL DEPTH: DAMAGE PRESENT: (degrees C)TIME PU R G I N G SA M P L I N G pH SPECIFIC REDOX DISSOLVED TURBIDITY TEMPERATURE (pH units) CONDUCTIVITY POTENTIAL OXYGEN (NTU) COMMENTS: Purged ___.83__ gallons pre-sampling; Water sampled color: _Slight tan tint______. Samples collected: 3 HCl preserved vials and 3 unpreserved amber 1 liter bottles, stored on ice NA= not applicable; NR = not recorded (mS/cm) (mv) (mg/l) LOW FLOW SAMPLING DATA SHEET SHEET 1 OF 1 SITE: DATE: WEATHER: MONITOR WELL #: no yes no PUMPING DEPTH TO WATER RATE (ft below TOC) (ml/min) READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* 10:30 x 7.46 NA 10094 NA -109.3 NA 0.83 NA NA NA 13 NA 120 6.55 10:35 x 7.47 -0.1% 9859 2.3% -121.3 12.0 0.27 67.5% NA #VALUE! 12.3 5.4% 120 6.11 10:40 x 7.48 -0.1% 9258 6.1% -122.2 0.9 0.24 11.1% NA #VALUE! 12.1 1.6% 120 5.9 10:45 x 7.5 -0.3% 9247 0.1% -124.3 2.1 0.28 -16.7% NA #VALUE! 12.1 0.0% 120 5.7 10:50 X 7.53 -0.4% 9230 0.2% -126.1 1.8 0.24 14.3% NA #VALUE! 12.1 0.0% 120 5.66 10:55 x 7.54 -0.1% 9222 0.1% -123.9 2.2 0.32 -33.3% NA #VALUE! 11.9 1.7% 120 5.63 11:00 x 7.55 -0.1% 9218 0.0% -120.3 3.6 0.3 6.3% NA #VALUE! 11.8 0.8% 120 5.62 11:05 x 7.55 0.0% 9221 0.0% -121.1 0.8 0.29 3.3% NA #VALUE! 11.9 -0.8% 120 5.6 11:10 x 7.55 0.0% 9215 0.1% -121.4 0.3 0.29 0.0% NA #VALUE! 11.9 0.0% 120 5.6 11:15 7.56 -0.1% 9211 0.0% -121.1 0.3 0.28 3.4% NA #VALUE! 11.9 0.0% 120 5.59 *INDICATOR PARAMETERS HAVE STABLIZED WHEN 3 CONSECUTIVE READINGS ARE WITHIN: ± 0.1 for pH; ± 3% for Sp. Cond. and Temp.; ± 10 mv for Redox Potential; and ± 10% for Dissolved Oxygen (Greater than 0.5 mg/L) and Turbidity (Greater than 5 NTU) Chromalox PROJECT NUMBER: 117-0551002 3/29/2023 SAMPLED BY: Aaron Pettley Cloudy, some rain, 48 F MW-22 WELL DIA: 2" 26.9 WELL CAP PRESENT: DEPTH TO WATER BEFORE PUMP INSTALLATION: 6.4 BACKGROUND: COVER LOCKED: STANDING WATER: yes, pumped out WELL DEPTH: DAMAGE PRESENT: (degrees C)TIME PU R G I N G SA M P L I N G pH SPECIFIC REDOX DISSOLVED TURBIDITY TEMPERATURE (pH units) CONDUCTIVITY POTENTIAL OXYGEN (NTU) COMMENTS: Purged __1.74___ gallons pre-sampling; Water sampled color: ____Slight tan tint___. Samples collected: 3 HCl preserved vials and 3 unpreserved amber 1 liter bottles, stored on ice NA= not applicable; NR = not recorded (mS/cm) (mv) (mg/l) LOW FLOW SAMPLING DATA SHEET SHEET 1 OF 1 SITE: DATE: WEATHER: MONITOR WELL #: no yes no PUMPING DEPTH TO WATER RATE (ft below TOC) (ml/min) READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE* 11:55 x 7.75 NA 2906 NA -15 NA 0.55 NA NA NA 12.6 NA 120 9.3 12:00 x 7.75 0.0% 2980 -2.5% -12 3.0 0.53 3.6% NA #VALUE! 12.2 3.2% 120 9.32 12:05 x 7.74 0.1% 2903 2.6% 2.3 14.3 0.41 22.6% NA #VALUE! 12.4 -1.6% 120 9.35 12:10 x 7.73 0.1% 2900 0.1% 4.7 2.4 0.39 4.9% NA #VALUE! 12.5 -0.8% 120 9.4 12:15 x 7.73 0.0% 2899 0.0% 6.2 1.5 0.37 5.1% NA #VALUE! 13 -4.0% 120 9.41 12:20 x x 7.73 0.0% 2899 0.0% 7.2 1.0 0.36 2.7% NA #VALUE! 13.1 -0.8% 120 9.42 *INDICATOR PARAMETERS HAVE STABLIZED WHEN 3 CONSECUTIVE READINGS ARE WITHIN: ± 0.1 for pH; ± 3% for Sp. Cond. and Temp.; ± 10 mv for Redox Potential; and ± 10% for Dissolved Oxygen (Greater than 0.5 mg/L) and Turbidity (Greater than 5 NTU) Chromalox PROJECT NUMBER: 117-0551002 3/29/2023 SAMPLED BY: Aaron Pettley Coudy, windy, 48 F MW-19 WELL DIA: 2" 26.48 WELL CAP PRESENT: DEPTH TO WATER BEFORE PUMP INSTALLATION: 8.25 BACKGROUND: COVER LOCKED: STANDING WATER: no WELL DEPTH: DAMAGE PRESENT: (degrees C)TIME PU R G I N G SA M P L I N G pH SPECIFIC REDOX DISSOLVED TURBIDITY TEMPERATURE (pH units) CONDUCTIVITY POTENTIAL OXYGEN (NTU) COMMENTS: Purged __0.95___ gallons pre-sampling; Water sampled color: _clear______. Samples collected: 3 HCl preserved vials and 3 unpreserved amber 1 liter bottles, stored on ice NA= not applicable; NR = not recorded (mS/cm) (mv) (mg/l) RPS Project Number 221020 Appendix D 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 09/17/2019 02/20/2020 6/23/2020 11/4/2020 03/19/2021 10/7/20201 03/30/2022 10/25/2022 03/28/2023 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 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D VOC Trend Diagrams 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 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 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D VOC Trend Diagrams 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 1,2‐Dichloroethane 1,1,1‐Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 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 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 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 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 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 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 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 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 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 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 1,2‐Dichloroethane 1,1,1‐Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 10/11/2021 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‐19 VOCs 1,2‐Dichloroethane 1,1,1‐Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 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 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 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D VOC Trend Diagrams 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 1,2‐Dichloroethane 1,1,1‐Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 10/11/2021 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 1,2‐Dichloroethane 1,1,1‐Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 09/18/2019 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 1,2‐Dichloroethane 1,1,1‐Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 09/18/2019 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 1,2‐Dichloroethane 1,1,1‐Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 09/17/2019 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 1,2‐Dichloroethane 1,1,1‐Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 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 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 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.001 0.002 0.003 0.004 0.005 0.006 09/18/2019 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 1,2‐Dichloroethane 1,1,1‐Trichloroethane Trichloroethene Vinyl Chloride Chloroform 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix D VOC 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 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 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 1,1-DCE 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 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 Co n c e n t r a t i o n (m g / L ) MW‐5 1,1‐DCE 1,1‐Dichloroethene 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 Co n c e n t r a t i o n (m g / L ) MW‐9 1,1‐DCE 1,1‐Dichloroethene 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 1,1-DCE Trend Diagrams 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 1,1‐Dichloroethene 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 1,1‐Dichloroethene 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 10/11/2021 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‐19 1,1‐DCE 1,1‐Dichloroethene 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 Co n c e n t r a t i o n (m g / L ) MW‐21 1,1‐DCE 1,1‐Dichloroethene 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 1,1-DCE Trend Diagrams 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 1,1‐Dichloroethene 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 09/18/2019 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 1,1‐Dichloroethene 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 1,1‐Dichloroethene 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 1,1-DCE 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 03/22/2021 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 1,1‐Dichloroethene 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 Co n c e n t r a t i o n (m g / L ) GMW‐4 1,1‐DCE 1,1‐Dichloroethene 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 1,1‐Dichloroethene 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 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 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 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix E 1,1-DCE Trend Diagrams 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 1,1‐Dichloroethene 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F Dissolved Metals 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 02/19/2020 06/23/2020 09/22/2020 03/23/2021 10/7/2021 03/30/2022 10/24/2022 03/28/2023 Co n c e n t r a t i o n (m g / L ) MW‐1 Metals Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 09/17/2019 02/20/2020 6/23/2020 09/23/2020 03/19/2021 10/7/20201 03/30/2022 10/25/2022 03/28/2023 Co n c e n t r a t i o n (m g / L ) MW‐5 Metals Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 Co n c e n t r a t i o n (m g / L ) MW‐7 Metals Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 Co n c e n t r a t i o n (m g / L ) MW‐8 Metals Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 09/16/2019 2/20/2020 6/23/2020 09/23/2020 03/19/2021 10/5/2021 04/01/2022 10/24/2022 03/28/2023 Co n c e n t r a t i o n (m g / L ) MW‐9 Metals Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 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 Co n c e n t r a t i o n (m g / L ) MW‐10B Metals Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 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 Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 Co n c e n t r a t i o n (m g / L ) MW‐12S Metals Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 Co n c e n t r a t i o n (m g / L ) MW‐12D Metals Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 Co n c e n t r a t i o n (m g / L ) MW‐13S Metals Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 Co n c e n t r a t i o n (m g / L ) MW‐13D Metals Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 Co n c e n t r a t i o n (m g / L ) MW‐14S Metals Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 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 Co n c e n t r a t i o n (m g / L ) MW‐14D Metals Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 6/22/2020 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 Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 Co n c e n t r a t i o n (m g / L ) MW‐16 Metals Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 Co n c e n t r a t i o n (m g / L ) MW‐17 Metals Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 Co n c e n t r a t i o n (m g / L ) MW‐18 Metals Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F Dissolved Metals Trend Diagrams 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 Co n c e n t r a t i o n (m g / L ) MW‐19 Metals Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 Co n c e n t r a t i o n (m g / L ) MW‐20 Metals Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F Dissolved Metals Trend Diagrams 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 Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 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 Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 09/18/2019 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 Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 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 Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 09/17/2019 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 Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F Dissolved Metals 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 02/20/2020 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 ) GMW‐4 Metals Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 Co n c e n t r a t i o n (m g / L ) GMW‐5 Metals Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 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 Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F 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 Co n c e n t r a t i o n (m g / L ) GMW‐8 Metals Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 RPS Project Number 221020 Appendix F Dissolved Metals Trend Diagrams 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 Arsenic Mangenese 1st Round 2023 Groundwater Monitoring March 2023 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 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