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Home My WebLink AboutDERR-2024-012976October 2024 Groundwater Monitoring Report Former Beehive Credit Union 2205 East 2100 South, Salt Lake City, Utah Facility Identification No. 4002050 Release Site JDI December 11, 2024 | Terracon Project No. AL137352 Prepared for: Utah Department of Environmental Quality Salt Lake City, Utah 6952 South High Tech Dr. Ste. B Midvale, Utah 84047 P (801) 545-8500 Terracon.com Facilities | Environmental | Geotechnical | Materials i December 11, 2024 Utah Department of Environmental Quality Division of Environmental Response and Remediation 195 North 1950 West Salt Lake City, Utah 84114 Attn: Ms. Eileen Brennan P: 801-536-4100 E: ebrennan@utah.gov RE: October 2024 Groundwater Monitoring Report Former Beehive Credit Union 2205 East 2100 South, Salt Lake City, Utah Facility Identification No. 4002050, Release Site JDI Terracon Project No. AL137352 Dear Ms. Brennan: Terracon is pleased to provide this report documenting the October 2024 groundwater sampling event conducted at the above-referenced site. Terracon has performed these activities pursuant to Terracon’s Work Plan JDI-12, dated June 25, 2024. The Utah Department of Environmental Quality (UDEQ) Division of Environmental Response and Remediation (DERR) approved the Work Plan in Work Assignment JDI-13-TER, dated September 9, 2024. We appreciate the opportunity to have performed these services for you. Please contact our office at (801) 545-8500 if you have questions regarding this information or if we can provide any other services. Sincerely, Terracon Consultants, Inc. Stephen Maliszeski Amy Austin Project Manager Authorized Project Reviewer Utah UST Consultant CC0238 Amy Austin Facilities | Environmental | Geotechnical | Materials ii Table of Contents 1.0 Introduction ................................................................................ 1 1.1 Project Background ................................................................................ 1 1.2 Scope of Work ....................................................................................... 1 1.3 Standard of Care .................................................................................... 1 1.4 Additional Scope Limitations .................................................................... 2 1.5 Reliance ................................................................................................ 2 2.0 Groundwater Sampling Event......................................................... 2 2.1 Groundwater Sample Collection ............................................................... 2 2.2 Site Observations ................................................................................... 3 2.3 Investigation-derived Waste .................................................................... 3 2.4 Quality Assurance/Quality Control ............................................................ 3 3.0 Laboratory Analytical Methods ....................................................... 4 4.0 Data Evaluation ........................................................................... 4 4.1 Groundwater Sample Results ................................................................... 4 4.1.1 TPH Fractionation ................................................................................ 5 5.0 Findings and Conclusions .............................................................. 5 Appendices Appendix A Exhibits Exhibit 1: Historic Site Layout Exhibit 2: Site Layout/Sampled Wells Exhibit 3: Groundwater Gradient Map, October 2024 Exhibit 4: TPH-GRO Exceedances in Groundwater Exhibit 5: TPH-DRO Exceedances in Groundwater Appendix B Tables Table 1: Summary of Groundwater Monitoring Well Analytical Results Table 2: Site-Specific Cleanup Level (SSCL) Calculator Results Appendix C Chain of Custody and Laboratory Data Sheets JDI-13-TER: Groundwater Monitoring Report Beehive Credit Union | Salt Lake City, Utah December 11, 2024 | Terracon Project No. AL137352 Facilities | Environmental | Geotechnical | Materials 1 1.0 Introduction 1.1 Project Background The former Beehive Credit Union site is currently occupied by “Twio Brand Marketing Agency”, a commercial business. Adjoining properties and the surrounding area are residential and commercial. A release of petroleum hydrocarbons was reported to the DERR on September 20, 1995, following the removal of two gasoline underground storage tanks (USTs). DERR assigned the site Release ID JDI. Multiple subsurface investigations have been conducted at the site to define the extent and degree of impacts. Subsequently, a remediation system consisting of a liquid-ring vacuum pump was used to remove and abate petroleum vapors and petroleum-impacted groundwater. The remediation system operated from February 1999 to August 2002. Sampling conducted immediately following the shutdown of the remediation system indicated concentrations of petroleum hydrocarbons had generally decreased; however, some areas still had concentrations in excess of the cleanup standards for the site. A historical site map generated in 2018 with boring and well locations (based on historical data available in the DERR file) is presented in Exhibit 1 (Appendix A). Most of the historical monitoring points have been lost or destroyed and are assumed to no longer exist based on significant redevelopment of the site. Groundwater sampling of five monitoring wells (MW-1, MW-2, MW-3, MW-B, and MW-D) has most recently been conducted. Groundwater samples collected from the five monitoring wells are analyzed for methyl tert-butyl ether, benzene, toluene, ethylbenzene, total xylenes, and naphthalene (MBTEXN), total petroleum hydrocarbons in the gasoline range (TPH-GRO), and total petroleum hydrocarbons in the diesel range (TPH-DRO). 1.2 Scope of Work One groundwater sampling event was conducted following Work Assignment JDI-13, dated September 9, 2024. The objective of the Work Assignment was to perform groundwater sampling of the five remaining monitoring wells (MW-1, MW-2, MW-3, MW-B, and MW-D) associated with the site. UDEQ requested the groundwater samples be analyzed for MBTEXN, TPH-GRO, and TPH- DRO. Additionally, monitoring wells MW-B and MW-D were to be analyzed using TPH fractionation. 1.3 Standard of Care Terracon’s services were performed in a manner consistent with generally accepted practices of the profession undertaken in similar studies in the same geographical area JDI-13-TER: Groundwater Monitoring Report Beehive Credit Union | Salt Lake City, Utah December 11, 2024 | Terracon Project No. AL137352 Facilities | Environmental | Geotechnical | Materials 2 during the same time period. Please note that Terracon does not warrant the work of laboratories, regulatory agencies or other third parties supplying information used in the preparation of the report. These services were performed in accordance with the scope of work agreed with you, our client, as reflected in our proposal. 1.4 Additional Scope Limitations Findings, conclusions, and recommendations resulting from these services are based upon information derived from the on-site activities and other services performed under this scope of work. Such information is subject to change over time. Certain indicators of the presence of hazardous substances, petroleum products, or other constituents may have been latent, inaccessible, unobservable, non-detectable or not present during these services, and we cannot represent that the site contains no hazardous substances, toxic materials, petroleum products, or other latent conditions beyond those identified during this investigation. Subsurface conditions may vary from those encountered at specific borings or wells or during other surveys, tests, assessments, investigations or exploratory services; the data, interpretations, findings, and our recommendations are based solely upon data obtained at the time and within the scope of these services. 1.5 Reliance This report has been prepared for the exclusive use and reliance of the UDEQ. Use or reliance by any other party is prohibited without the written authorization of UDEQ and Terracon. Reliance on this report by the client and all authorized parties will be subject to the terms, conditions and limitations stated in the proposal, report, and Terracon’s Terms and Conditions. The limitation of liability defined in the Terms and Conditions is the aggregate limit of Terracon’s liability to the client and all relying parties. 2.0 Groundwater Sampling Event 2.1 Groundwater Sample Collection Terracon collected groundwater samples on October 25, 2024 from four monitoring wells located on the site (MW-1, MW-2, MW-3, and MW-B) and one monitoring well (MW-D) located on the down-gradient property to the west. Terracon measured depth to product and product thickness, if present, and depth to groundwater. Terracon sampled the wells following standard operating procedures (SOPs) for well sampling, which included purging up to three casing volumes from each of the JDI-13-TER: Groundwater Monitoring Report Beehive Credit Union | Salt Lake City, Utah December 11, 2024 | Terracon Project No. AL137352 Facilities | Environmental | Geotechnical | Materials 3 wells, then collecting groundwater samples from each well using a new disposable bailer for each well. Groundwater sampling was performed by Utah-certified UST Groundwater and Soil Sampler Stephen Maliszeski (GS 1832) with oversight from a Utah-certified UST Consultant Amy Austin (CC0238). 2.2 Site Observations Depth-to-water measurements ranged from 28.27 feet below top-of-casing (MW-D) to 29.89 feet below top-of-casing (MW-1). Relative groundwater elevations are presented in Table 1 (Appendix B). The direction of groundwater flow was generally consistent with a westerly flow direction observed during previous monitoring events.A groundwater elevation map is included as Exhibit 2 (Appendix A). During groundwater depth measurements, free product was not identified, however a petroleum sheen was observed at MW-1 in the bailer while purging the monitoring well. Measurable free product was not observed in any of the gauged monitoring wells during this sampling event; however, all had varying degrees of petroleum odor during the purge and sampling process. During the purge process, wells MW-3 and MW-D bailed dry and were sampled after sufficient time to allow the groundwater to recharge. 2.3 Investigation-derived Waste Monitoring well purge water was surface applied in the vicinity of the well that generated the water and was allowed to infiltrate and/or evaporate. Care was taken to not allow purged water to affect nearby receptors (e.g., storm water catch basins, utilities, or property boundaries). 2.4 Quality Assurance/Quality Control Quality Assurance/Quality Control (QA/QC) was provided by using standardized sample collection and handling methods, documenting pertinent field information, and keeping chain-of-custody records, as well as using a Utah-certified laboratory. All sampling procedures followed Terracon’s SOPs. The analytical laboratory report indicated that samples were extracted and analyzed within appropriate sample holding times, and no data qualifiers were applied to this data set. JDI-13-TER: Groundwater Monitoring Report Beehive Credit Union | Salt Lake City, Utah December 11, 2024 | Terracon Project No. AL137352 Facilities | Environmental | Geotechnical | Materials 4 3.0 Laboratory Analytical Methods All groundwater samples were collected and placed in laboratory-prepared containers, labeled, and placed on ice in a cooler and submitted to Chemtech-Ford Laboratories in Sandy, Utah. All five groundwater samples and were submitted for analysis of BTEXN and MTBE and total TPH-GRO by United States Environmental Protection Agency (USEPA) Method 8260, and TPH-DRO by USEPA Method 8015. Sample locations MW-B and MW-D were submitted for TPH Fractionation by USEPA Method 8270. The executed chain-of-custody forms and laboratory data sheets are provided in Appendix C. 4.0 Data Evaluation 4.1 Groundwater Sample Results The results are compared to the UDEQ DERR Leaking Underground Storage Tank (LUST) Program’s Initial Screening Levels (ISL) and risk-based Tier 1 Screening Levels (Tier 1) for petroleum hydrocarbons. Petroleum hydrocarbon constituents were reported in four of the five groundwater samples collected during this event (MW-1, MW-3, MW-B, and MW-D). The groundwater sample collected from monitoring well MW-2 did not report petroleum hydrocarbons above laboratory detection limits. Concentrations of TPH-DRO were reported above the ISL (1.0 mg/L), but less than the Tier 1 Screening Level (10 mg/L), in these four wells (MW-1, MW-3, MW-B, and MW-D) with a maximum concentration of 4.6 mg/L (MW-B). Concentrations of TPH-GRO were reported above the ISL (1.0 mg/L) in these four wells (MW-1, MW-3, MW-B, and MW-D). The concentrations reported in MW-1 and MW-B exceeded the Tier 1 Screening Level (10 mg/L) with a maximum concentration of 12.0 mg/L (MW-B). The remaining analytes reported were below their respective ISLs. Table 1 (Appendix B)summarizes historical and current groundwater sample results. Laboratory results are included in the laboratory report (Appendix C). Exhibits 4 and 5 (Appendix A) display the concentrations of TPH-GRO and TPH-DRO respectively that exceeded the ISL and Tier 1 Screening Level from this sampling event. JDI-13-TER: Groundwater Monitoring Report Beehive Credit Union | Salt Lake City, Utah December 11, 2024 | Terracon Project No. AL137352 Facilities | Environmental | Geotechnical | Materials 5 4.1.1 TPH Fractionation Laboratory results for TPH Fractionation analysis from two locations (MW-B and MW-D) are included in the laboratory report (Appendix C). As requested by Ms. Eileen Brennan, UDEQ Project Manager, Terracon used the UDEQ’s Site-Specific Cleanup Level (SSCL) Calculator v1.2 (2015.10.22) to calculate SSCLs based on site-specific parameters. The soil type representative of the site, depth to contaminated soil, presence of contamination in the saturated zone, and width of the contaminated source area parallel to groundwater flow were derived from the Expansion of Phase 2 Subsurface Investigation, Former Unocal Facility, 2205 East 2100 South, Salt Lake City, Utah, Former Beehive Credit Union, UDEQ Facility ID# 4002050, UDEQ LUST #EJDI, dated October 27, 1997. The depth to groundwater was derived from the depth to groundwater from MW-B, located near the former tank basin, in this October 2024 Groundwater Monitoring Report (see Table 1 in Appendix B). The hydraulic gradient was calculated by dividing the difference between the relative groundwater elevations calculated for MW-1 and MW-3 by the distance between the wells (see Exhibit 3 in Appendix A). The highest concentrations of each analyte or petroleum fraction were entered into the calculator for evaluation compared to the calculated SSCLs. Table 2 (Appendix B)summarizes the results of the SSCL calculator. As shown in Table 2, the concentrations of petroleum hydrocarbons reported during this groundwater monitoring event are all less than the SSCLs. 5.0 Findings and Conclusions Comparing the October 2024 groundwater sampling event analytical results to the 2017 and 2019 sampling events shows the concentrations of TPH-GRO and TPH-DRO in MW-1 and MW-3 have increased. Concentrations of TPH-GRO and TPH-DRO in MW-B and MW-D are generally consistent with prior monitoring events and MW-2 remains non-detect for petroleum constituents. Concentrations of TPH-GRO and TPH-DRO remain elevated above DERR’s ISLs both on-site in the source area and down-gradient off-site to the west (MW-D). TPH-GRO concentrations exceeding the Tier 1 Screening Level appear to remain in the immediate vicinity of the source area (MW-B and MW-1). Based on the results of the SSCL Calculator, these TPH-GRO and TPH-DRO concentrations, while exceeding ISLs and Tier 1, do not exceed the SSCLs calculated for the site. Terracon appreciates being of service to you on this project. If you have any questions, require additional information, or need additional assistance, please contact us. Appendix A Exhibits !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!! !!! !!! ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ! ! ! ! ! ! ! ! ! ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !!!!!!!!!!!!!!!!!!!!!!!!!!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! @A @A @A @A @A # # # # # # # # ! ! ! !! ! ! ! ! ! ! E E E E E E MW-D MW-B MW-Cs/Cd MW-A MW-E SP1 SP2 SP3 SP4 SP5 SP6 SP7 SP8 GP1 GP2 GP3 GP4GP5 GP6 GP7 GP8 GP9 GP10 GP11 SB1 SB2 SB3 SB4 SB5 SB6 Former UsedOil Tank Field Write ImageBuilding Canopy FormerGasoline TankField FormerDispenserIsland FormerDispenserIsland Project No.: Reviewed By: Date: Drawn By: IMS ABF 01/04/18 AL137352 P:\GIS\AL137352_DERR_UT\Maps\Dec2017_GroundwaterPosting\AL137352_Exhibit1_HistoricalBorings.mxd 6949 S. H igh Tech D r, Suite 100 Midvale, U tah PH. (801) 746 5464 terracon.com 0 20 4010Feet2100 South 2200 East³ Historic Sample Locations @A Monitoring Wells (1997) #Soil Borings (Delta 2002) !Soil Borings (Wasatch 1995) E Soil Borings (TPHRM 1996/1997) Utilities !!!Gas Line !!!Power Line !!!Sanitary Sewer Line !!!Water Line Former Building UST Features Historic Site Layout Exhibit 1DERRFormer Be ehive Credit Union2205 East 2100 SouthSalt Lake City, Utah NOTES: This product is intended for informational purposes only and may not be suitable for legal, engineering, or surveying purposes. DATA SOURCES: Aerial Photography provided by AGRC (2012 HRO). !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!! !!! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! @A @A @A @A @A MW-B MW-2 MW-D MW-1 MW-3 Project No.: Reviewed By: Date: Drawn By: IMS ABF 12/09/19 AL137352 \ \ p 6 1 w f s 0 1 \ d a t a \ G I S \ A L 1 3 7 3 5 2 _ D E R R _ U T \ M a p s \ 2 0 1 9 _ 1 1 _ G r o u n d w a t e r \ A L 1 3 7 3 5 2 _ E x h i b i t 2 _ S i t e L a y o u t S a m p l e d W e l l s . m x d 6949 S. High Tech Dr, Suite 100 Midvale, Utah PH. (801) 746 5464 terracon.com 0 20 4010 Feet 2100 South 22 0 0 E a s t Monitoring Wells @A 1" Monitoring Well @A 2" Monitoring Well Utilities ! ! !Gas Line ! ! !Power Line ! ! !Sanitary Sewer Line ! ! !Water Line Site Layout/Sampled Wells Exhibit 2 DERR Former Beehive Credit Union 2205 East 2100 South Salt Lake City, Utah NOTES: This product is intended for informational purposes only and may not be suitable for legal, engineering, or surveying purposes. DATA SOURCES: Aerial Photography provided by AGRC (2012 HRO). N: \ G I S \ A L 1 3 7 3 5 2 _ D E R R _ U T \ M a p s \ A L 1 3 7 3 5 2 _ D E R R _ N o v 1 9 M o n i t o r i n g \ A L 1 3 7 3 5 2 _ D E R R _ N o v 1 9 M o n i t o r i n g . a p r x Exhibit terracon.comPH. 801-545-8500 6952 S High Tech Dr, Ste B Midvale, UT Reviewed By: Drawn By: Nov 2024 Date: AL137352 Project No.: Former Beehive Credit Union 2205 East 2100 South Salt Lake City, Utah Facility ID 4002050, Release Site JDI Groundwater Gradient Map, October 2024 3 ABA AST DATA SOURCES: ESRI - Basemaps @A @A @A @A @A S 2 2 0 0 E S 2 2 0 0 E & MW-1 70.67 MW-2 70.53 MW-3 70.21 MW-B 70.58 MW-D 69.57 6 9 . 7 5 f t 7 0 f t 7 0 . 2 5 f t 7 0 . 5 f t 0 20 4010 Feet ³ ³Monitoring Well with Relative Groundwater Elevation (ft) @A 1" Monitoring Well @A 2" Monitoring Well Groundwater Contour (ft) &Groundwater Flow Direction Approximate Site Boundary N: \ G I S \ A L 1 3 7 3 5 2 _ D E R R _ U T \ M a p s \ A L 1 3 7 3 5 2 _ D E R R _ N o v 1 9 M o n i t o r i n g \ A L 1 3 7 3 5 2 _ D E R R _ N o v 1 9 M o n i t o r i n g . a p r x Exhibit terracon.comPH. 801-545-8500 6952 S High Tech Dr, Ste B Midvale, UT Reviewed By: Drawn By: Nov 2024 Date: AL137352 Project No.: Former Beehive Credit Union 2205 East 2100 South Salt Lake City, Utah Facility ID 4002050, Release Site JDI TPH-GRO Exceedances in Groundwater 4 ABA AST DATA SOURCES: ESRI - Basemaps @A @A @A @A @A S 2 2 0 0 E S 2 2 0 0 E MW-1 4.3 MW-2 <1.0 MW-3 2.2 MW-B 4.6MW-D 2.0 0 20 4010 Feet ³ ³Monitoring Well with TPH-GRO Concentration (mg/l) @A 1" Monitoring Well @A 2" Monitoring Well Approximate Site Boundary TPH-GRO Exceedances in Groundwater Exceeds ISL (1 mg/l) Exceeds Tier 1 (10 mg/l) N: \ G I S \ A L 1 3 7 3 5 2 _ D E R R _ U T \ M a p s \ A L 1 3 7 3 5 2 _ D E R R _ N o v 1 9 M o n i t o r i n g \ A L 1 3 7 3 5 2 _ D E R R _ N o v 1 9 M o n i t o r i n g . a p r x Exhibit terracon.comPH. 801-545-8500 6952 S High Tech Dr, Ste B Midvale, UT Reviewed By: Drawn By: Nov 2024 Date: AL137352 Project No.: Former Beehive Credit Union 2205 East 2100 South Salt Lake City, Utah Facility ID 4002050, Release Site JDI TPH-DRO Exceedances in Groundwater 5 ABA AST DATA SOURCES: ESRI - Basemaps @A @A @A @A @A S 2 2 0 0 E S 2 2 0 0 E MW-1 4.3 MW-2 <1.0 MW-3 2.2 MW-B 4.6MW-D 2.0 0 20 4010 Feet ³ ³Monitoring Well with TPH-DRO Concentration (mg/l) @A 1" Monitoring Well @A 2" Monitoring Well Approximate Site Boundary TPH-DRO Exceedances in Groundwater Exceeds ISL (1 mg/l) Appendix B Data Tables Table 1 Summary of Groundwater Monitoring Well Analytical Results (TOC Elev.)1 Date TPH-DRO TPH-GRO MTBE Benzene Toluene Ethyl- benzene Total Xylenes Naph- thalene Utah's ISLs2 1 1 0.2 0.005 1 0.7 10 0.7 Utah's RBCA Tier 13 10 10 0.2 0.3 3 4 10 0.7 MW-1 10/08/08 12 5.8 <0.02 <0.01 <0.02 0.097 0.87 0.11 32.17 68.39 0.00 11/21/08 Re-measured depth-to-water only 32.47 68.09 NM 06/04/09 3 6.1 <0.02 <0.01 <0.02 0.042 0.5 0.02 33.08 67.48 0.00 09/22/09 8.6 7.7 <0.002 <0.01 <0.02 0.031 0.69 0.07 31.48 69.08 0.00 06/12/13 4.6 14.1 <0.02 <0.02 0.095 0.155 0.801 0.074 30.64 69.92 0.00 12/11/13 1.9 16.3 <0.001 <0.001 <0.001 0.014 0.099 0.044 31.31 69.25 0.00 06/09/14 <1 0.739 <0.001 <0.001 <0.001 0.001 0.011 0.007 33.02 67.54 0.00 12/18/14 <1 2 <0.001 <0.001 <0.001 0.005 0.035 0.009 34.09 66.47 0.00 06/19/15 1.8 1.42 <0.005 <0.002 <0.005 0.006 0.053 0.007 35.71 64.85 0.00 12/18/17 4.7 7.04 <0.005 <0.005 <0.012 0.036 0.364 0.056 34.09 66.47 0.00 11/21/19 2.0 2.57 <0.005 <0.005 <0.012 0.015 0.171 0.020 29.32 71.24 sheen 10/25/24 4.3 11.0 <0.008 <0.005 <0.012 0.040 0.403 0.047 29.89 70.67 sheen MW-2 10/08/08 <0.5 0.035 <0.02 <0.01 <0.02 <0.02 <0.02 <0.02 32.58 66.53 0.00 11/21/08 Re-measured depth-to-water only 31.10 68.01 NM 06/04/09 <0.5 0.045 <0.002 <0.001 <0.002 <0.002 <0.002 <0.002 31.70 67.41 0.00 09/22/09 <0.51 <0.02 <0.002 <0.001 <0.002 <0.002 <0.002 <0.002 30.16 68.95 0.00 06/12/13 <1 <0.05 <0.001 <0.001 <0.001 0.004 0.008 <0.002 29.33 69.78 0.00 12/11/13 <1 <0.05 <0.001 <0.001 <0.001 <0.001 <0.003 <0.002 30.02 69.09 0.00 06/09/14 <1 <0.05 <0.001 <0.001 <0.001 0.060 0.116 0.046 31.67 67.44 0.00 12/18/14 <1 <0.05 <0.001 <0.001 0.001 0.022 0.061 0.011 32.77 66.34 0.00 06/19/15 <1 <0.24 <0.005 <0.002 <0.005 <0.005 0.009 0.007 34.41 64.70 0.00 12/18/17 <1.0 <0.125 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 33.27 65.84 0.00 11/21/19 <1.0 <0.125 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 28.13 70.98 0.00 10/25/24 <1.0 <0.125 <0.008 <0.005 <0.012 <0.012 <0.038 <0.012 28.58 70.53 0.00 MW-3 10/08/08 <0.5 0.450 <0.002 <0.001 <0.002 0.011 0.041 0.0034 30.97 68.02 0.00 11/21/08 Re-measured depth-to-water only 31.28 67.71 NM 06/04/09 <0.5 0.250 <0.002 <0.001 <0.002 0.014 0.036 <0.002 31.89 67.10 0.00 09/22/09 <0.51 0.400 <0.002 <0.001 <0.002 0.015 0.056 0.009 30.31 68.68 0.00 06/12/13 <1 1.06 <0.005 <0.005 0.024 0.049 0.127 0.026 29.49 69.50 0.00 12/11/13 1.4 0.876 <0.005 <0.005 <0.005 0.036 0.031 0.019 30.17 68.82 0.00 06/09/14 <1 1.74 <0.001 <0.001 <0.001 0.059 0.119 0.051 31.82 67.17 0.00 12/18/14 <1 0.990 <0.001 <0.001 <0.001 <0.001 <0.003 <0.002 32.92 66.07 0.00 06/19/15 <1 0.830 <0.005 <0.002 0.002 0.029 0.064 0.012 34.54 64.45 0.00 12/18/17 <1.0 1.34 <0.005 <0.005 <0.012 0.041 0.112 <0.012 32.92 66.07 0.00 11/21/19 <1.0 0.359 <0.005 <0.005 <0.012 <0.012 0.028 <0.012 28.25 70.74 0.00 10/25/24 2.2 3.50 <0.008 <0.005 0.015 0.211 0.570 0.036 28.78 70.21 0.00 09/15/97 NS NS NS NS NS NS NS NS NA NA 09/15/98 14 75 NA 0.6 3 1.7 11 0.840 18.58 0.00 03/28/99 NA 22 NA 0.1 0.21 0.6 3.8 0.220 18.96 0.00 06/16/99 NA 40 NA 0.280 1 0.740 6.2 0.510 19.62 0.19 09/09/99 NA 49 NA 0.190 2 1.20 7.9 0.360 19.27 0.00 02/11/00 NS NS NS NS NS NS NS NS 20.77 0.04 06/25/00 3 17 NA 0.110 0.450 0.450 3.3 0.180 25.64 0.00 08/02/01 11.4 10 <0.02 <0.02 0.118 0.213 1.76 0.116 27.34 0.00 11/14/01 5.2 15.5 0.052 0.024 0.148 0.311 1.83 0.102 28.29 0.00 06/11/02 NA 13.3 0.05 0.023 <0.01 0.099 0.530 <0.050 29.46 0.00 10/13/08 COULD NOT BE LOCATED NM NM 06/04/09 NOT INCLUDED IN THE SCOPE OF WORK FOR WORK ASSIGNMENT NM NM Facility ID 40002050 / Release ID JDI (100.56) (99.11) (98.99) MW-A Depth-to- Groundwater (feet) Groundwater Elevation (feet) Thickness of Free Product (feet) Former Beehive Credit Union Page 1 of 5 Table 1 Summary of Groundwater Monitoring Well Analytical Results (TOC Elev.)1 Date TPH-DRO TPH-GRO MTBE Benzene Toluene Ethyl- benzene Total Xylenes Naph- thalene Utah's ISLs2 1 1 0.2 0.005 1 0.7 10 0.7 Utah's RBCA Tier 13 10 10 0.2 0.3 3 4 10 0.7 Facility ID 40002050 / Release ID JDI Depth-to- Groundwater (feet) Groundwater Elevation (feet) Thickness of Free Product (feet) Former Beehive Credit Union MW-B 09/15/97 NA 53 NA 0.004 0.065 0.015 0.099 NA NA NA 09/15/98 3 5.4 NA 0.42 4.7 1.70 9.9 0.410 18.66 NM 03/28/99 NA 16 NA 0.044 0.830 0.210 2.4 0.520 19.13 NM 06/16/99 NA 35 NA 0.094 2.7 0.840 4.9 0.300 19.74 0.09 09/09/99 NA 51 NA 0.150 4.8 1.20 7.9 0.200 20.12 0.00 02/11/00 1.1 25 NA 0.072 3.0 0.690 4.3 0.160 21.58 0.00 06/25/00 2.9 32 NA 0.140 4.4 1 5.7 0.170 23.95 0.00 08/02/01 73 34.6 <0.1 <0.02 3.14 1 5.24 0.269 27.93 0.00 11/14/01 NS NS NS NS NS NS NS NS DRY NM 06/11/02 NS NS NS NS NS NS NS NS DRY NM 10/13/08 7.9 11 <0.02 <0.01 0.740 0.750 4.1 0.270 31.33 68.32 0.00 11/21/08 Re-measured depth-to-water only 31.63 68.02 NM 06/04/09 4.3 8.2 <0.02 <0.01 0.670 0.600 3.40 0.110 32.25 67.40 0.00 09/22/09 4.8 12 <0.02 <0.01 0.730 0.520 3.30 0.190 30.67 68.98 0.01 06/12/13 <1 17.1 <0.02 <0.02 0.512 0.508 3.49 0.280 29.87 69.78 0.00 12/11/13 2.7 16.9 <0.005 <0.005 0.623 0.546 4.11 0.246 30.54 69.11 0.00 06/09/14 <1 0.685 <0.001 <0.001 0.163 0.121 0.926 0.133 32.11 67.54 0.00 12/18/14 <1 13.9 <0.01 <0.01 0.843 0.990 7.35 0.649 33.27 66.38 0.00 06/19/15 6.1 12.2 <0.005 <0.002 0.490 0.552 3.90 0.254 34.87 64.78 0.00 12/18/17 6.0 20.4 <0.005 <0.005 0.215 0.552 3.66 0.280 33.27 66.38 0.00 11/21/19 6.6 15.7 <0.005 <0.005 0.188 0.464 2.85 0.234 28.84 70.81 0.00 10/25/24 4.6 12.0 <0.008 <0.005 0.270 0.473 2.34 0.176 29.07 70.58 0.00 09/15/97 NS NS NS NS NS NS NS NS NA NA 09/15/98 NS NS NS NS NS NS NS NS 21.25 NM 03/28/99 NS NS NS NS NS NS NS NS 21.36 NM 06/16/99 NS NS NS NS NS NS NS NS 22.08 NM 09/09/99 NS NS NS NS NS NS NS NS 22.23 NM 02/11/00 NS NS NS NS NS NS NS NS 22.23 NM 06/25/00 NS NS NS NS NS NS NS NS 22.81 NM 08/02/01 NS NS NS NS NS NS NS NS DRY NM 11/14/01 NS NS NS NS NS NS NS NS DRY NM 06/11/02 NS NS NS NS NS NS NS NS DRY NM 10/13/08 NOT INCLUDED IN THE SCOPE OF WORK FOR WORK ASSIGNMENT NM NM 09/15/97 NA 0 NA 0 0 0 0 0 NA NA 09/15/98 NA 0 NA 0 0 0 0 0 21.96 0.00 03/28/99 NA 0 NA 0.001 0.002 0.002 0.008 0.017 21.41 0.00 06/16/99 NA 0 NA 0 0 0 0 0 21.71 0.00 09/09/99 NA 0 NA 0 0 0 0 0 22.02 0.00 02/11/00 NA 0 NA 0 0 0 0 0 23.93 0.00 06/25/00 0.520 0 NA 0 0 0 0 0.005 25.89 0.00 08/02/01 <0.500 <0.500 <0.002 <0.002 <0.002 <0.002 <0.006 <0.002 30.26 0.00 11/14/01 <1 <0.050 <0.002 <0.001 <0.001 <0.001 <0.003 <0.005 31.15 0.00 06/11/02 NA <0.050 <0.005 <0.001 <0.001 <0.001 <0.003 <0.005 32.35 0.00 10/13/08 NOT INCLUDED IN THE SCOPE OF WORK FOR WORK ASSIGNMENT NM NM (99.65) MW-Cs MW-Cd Page 2 of 5 Table 1 Summary of Groundwater Monitoring Well Analytical Results (TOC Elev.)1 Date TPH-DRO TPH-GRO MTBE Benzene Toluene Ethyl- benzene Total Xylenes Naph- thalene Utah's ISLs2 1 1 0.2 0.005 1 0.7 10 0.7 Utah's RBCA Tier 13 10 10 0.2 0.3 3 4 10 0.7 Facility ID 40002050 / Release ID JDI Depth-to- Groundwater (feet) Groundwater Elevation (feet) Thickness of Free Product (feet) Former Beehive Credit Union MW-D 09/15/97 NA 11 NA 0.046 0.006 0.021 0.087 NA NM NM 09/15/98 0.40 7.2 NA 0.050 0 0.015 0.035 0.034 20.27 0.00 03/28/99 NA 0.87 NA 0.011 0 0.004 0.005 0 19.93 0.00 06/16/99 NA 6.2 NA 0.009 0.004 0.006 0.008 0.074 20.15 0.00 09/09/99 NA 5.8 NA 0.021 0 0.006 0.014 0.052 20.52 0.00 02/11/00 2.7 4.8 NA 0.018 0 0.019 0.014 0.086 22.47 0.00 06/25/00 2.2 11 NA 0.019 0 0.007 0.029 0.075 24.32 0.00 08/02/01 4.2 1.4 <0.002 0.004 0.003 0.002 <0.006 0.004 28.50 0.00 11/14/01 1.2 35.4 0.013 0.007 0.006 0.019 0.004 <0.005 29.44 0.00 06/11/02 NA 5.59 0.008 0.001 <0.001 0.015 0.004 <0.005 30.21 0.00 10/13/08 2.1 8.8 <0.002 <0.001 0.0039 0.025 0.01 0.0036 30.32 67.52 0.00 11/21/08 Re-measured depth-to-water only 30.71 67.13 NM 06/04/09 2.5 1.7 <0.020 <0.010 <0.020 0.025 0.032 <0.020 31.29 66.55 0.00 09/22/09 0.770 2.4 <0.002 <0.001 0.023 0.044 0.051 0.016 29.79 68.05 0.00 06/12/13 <1 0.608 <0.001 <0.001 0.005 0.005 0.008 0.004 28.92 68.92 0.00 12/11/13 <1 0.995 <0.005 <0.005 <0.005 <0.005 <0.015 <0.010 29.41 68.43 0.00 06/09/14 <1 0.474 <0.001 <0.001 <0.001 <0.001 <0.003 0.005 31.16 66.68 0.00 12/18/14 32.36 65.48 0.00 0/6/19/15 12/18/17 1.5 2.12 <0.005 0.007 0.040 0.058 0.084 <0.012 32.36 65.48 0.00 11/21/19 1.9 2.44 <0.005 <0.005 0.065 0.111 0.080 0.045 27.80 70.04 0.00 10/25/24 2.0 2.05 <0.008 <0.005 0.051 0.120 0.063 0.038 28.27 69.57 0.00 09/15/97 NA 0 NA 0 0 0 0 NA NM NM 09/15/98 NA 0 NA 0 0 0 0 0 20.98 0.00 03/28/99 NA 0 NA 0 0.002 0.001 0.009 0 20.88 0.00 06/16/99 NA 0 NA 0 0 0 0.001 0 21.31 0.00 09/09/99 NA 0 NA 0 0 0 0 0 21.70 0.00 02/11/00 NA 0 NA 0 0 0 0 0 23.45 0.00 06/25/00 NA 0 NA 0 0 0 0 0 25.56 0.00 08/02/01 <0.5 <0.5 <0.002 <0.002 <0.002 <0.002 <0.006 <0.002 30.08 0.00 11/14/01 <1 <0.050 <0.002 <0.001 <0.001 <0.001 <0.003 <0.005 30.97 0.00 06/11/02 NA 0.334 <0.005 <0.001 <0.001 <0.001 <0.003 <0.005 32.19 0.00 10/13/08 NM NM 09/15/97 NS NS NS NS NS NS NS NS DRY NM 09/15/98 NS NS NS NS NS NS NS NS DRY NM 03/28/99 NS NS NS NS NS NS NS NS DRY NM 06/16/99 NS NS NS NS NS NS NS NS DRY NM 09/09/99 NS NS NS NS NS NS NS NS DRY NM 02/11/00 NS NS NS NS NS NS NS NS DRY NM 06/25/00 NS NS NS NS NS NS NS NS DRY NM 08/02/01 NS NS NS NS NS NS NS NS DRY NM 11/14/01 NS NS NS NS NS NS NS NS DRY NM 06/11/02 NS NS NS NS NS NS NS NS DRY NM 10/13/08 NOT INCLUDED IN THE SCOPE OF WORK FOR WORK ASSIGNMENT NM NM 09/15/97 NS NS NS NS NS NS NS NS NM N 09/15/98 7.9 340 NA 3.3 3.2 4.3 2.2 1.8 18.53 0.00 03/28/99 NS NS NS NS NS NS NS NS 19.83 0.11 06/16/99 NS NS NS NS NS NS NS NS 20.37 0.26 09/09/99 NA 54 NA 0.074 0.085 1.1 7.2 0.20 18.35 0.00 02/11/00 3.7 34 NA 0.110 0.092 1.1 6.4 0.6 22.22 0.00 06/25/00 4.7 41 NA 0.120 0.049 1.2 6.3 0.180 24.14 0.00 08/02/01 21.4 31.1 <0.033 <0.033 0.433 0.637 4.5 0.366 28.64 0.00 11/14/01 19.8 97.1 <0.200 0.245 0.597 1.98 11.1 0.528 28.87 0.00 06/11/02 NA 56.3 <0.025 0.074 0.118 1.32 9.87 0.446 30.50 0.00 10/13/08 NOT INCLUDED IN THE SCOPE OF WORK FOR WORK ASSIGNMENT NM NM MW-Fs MW-Fd (97.84) Not sampled - insufficent water in well NOT INCLUDED IN THE SCOPE OF WORK FOR WORK ASSIGNMENT Not sampled - Dry MW-E Page 3 of 5 Table 1 Summary of Groundwater Monitoring Well Analytical Results (TOC Elev.)1 Date TPH-DRO TPH-GRO MTBE Benzene Toluene Ethyl- benzene Total Xylenes Naph- thalene Utah's ISLs2 1 1 0.2 0.005 1 0.7 10 0.7 Utah's RBCA Tier 13 10 10 0.2 0.3 3 4 10 0.7 Facility ID 40002050 / Release ID JDI Depth-to- Groundwater (feet) Groundwater Elevation (feet) Thickness of Free Product (feet) Former Beehive Credit Union 09/15/97 NS NS NS NS NS NS NS NS DRY NM 09/15/98 NS NS NS NS NS NS NS NS DRY NM 03/28/99 NS NS NS NS NS NS NS NS DRY NM 06/16/99 NS NS NS NS NS NS NS NS DRY NM 09/09/99 NS NS NS NS NS NS NS NS DRY NM 02/11/00 NS NS NS NS NS NS NS NS DRY NM 06/25/00 NS NS NS NS NS NS NS NS DRY NM 08/02/01 NS NS NS NS NS NS NS NS DRY NM 11/14/01 NS NS NS NS NS NS NS NS DRY NM 06/11/02 NS NS NS NS NS NS NS NS DRY NM 10/13/08 NOT INCLUDED IN THE SCOPE OF WORK FOR WORK ASSIGNMENT NM NM 09/15/97 NS NS NS NS NS NS NS NS NM NM 09/15/98 NS NS NS NS NS NS NS NS 18.51 0.00 03/28/99 NA 53 NA 0.230 0.190 0.190 2 0.250 18.56 0.00 06/16/99 NS NS NS NS NS NS NS NS 18.88 0.00 09/09/99 NS NS NS NS NS NS NS NS DRY NM 02/11/00 NS NS NS NS NS NS NS NS DRY NM 06/25/00 NS NS NS NS NS NS NS NS DRY NM 08/02/01 NS NS NS NS NS NS NS NS DRY NM 11/14/01 NS NS NS NS NS NS NS NS DRY NM 06/11/02 NS NS NS NS NS NS NS NS DRY NM 10/13/08 NOT INCLUDED IN THE SCOPE OF WORK FOR WORK ASSIGNMENT NM NM 09/15/98 NS NS NS NS NS NS NS NS DRY NM 03/28/99 NS NS NS NS NS NS NS NS DRY 0.00 06/16/99 NS NS NS NS NS NS NS NS DRY 0.00 09/09/99 NS NS NS NS NS NS NS NS DRY 0.00 02/11/00 NS NS NS NS NS NS NS NS DRY 0.04 06/25/00 NS NS NS NS NS NS NS NS DRY 0.17 08/02/01 COULD NOT ACCESS NM NM 10/13/08 NOT INCLUDED IN THE SCOPE OF WORK FOR WORK ASSIGNMENT NM NM 09/15/98 0.6 9.5 NA 0.016 0 0 0.089 0.026 18.62 0.00 03/28/99 NS NS NS NS NS NS NS NS NM 0.00 06/16/99 NA 0.840 NA 0.001 0 0 0.005 0 19.28 0.00 09/09/99 NA 0 NA 0 0 0 0 0 20.12 0.00 02/11/00 0.120 0 NA 0.001 0.007 0 0.009 0.008 22.09 0.00 06/25/00 0 0 NA 0 0 0 0 0 24.00 0.00 08/02/01 <0.500 <0.5 <0.002 <0.002 <0.002 <0.002 <0.006 <0.002 28.38 0.00 11/14/01 <1 <0.050 <0.002 <0.001 <0.001 <0.001 <0.003 <0.005 29.27 0.00 06/11/02 NA 0.167 <0.005 <0.001 <0.001 <0.001 <0.003 <0.005 30.32 0.00 10/13/08 NOT INCLUDED IN THE SCOPE OF WORK FOR WORK ASSIGNMENT NM NM 09/15/98 NS NS NS NS NS NS NS NS DRY NM 03/28/99 NS NS NS NS NS NS NS NS NM NM 06/16/99 NS NS NS NS NS NS NS NS DRY NM 09/09/99 NS NS NS NS NS NS NS NS DRY NM 02/11/00 NS NS NS NS NS NS NS NS DRY NM 06/25/00 NS NS NS NS NS NS NS NS DRY NM 08/02/01 NS NS NS NS NS NS NS NS DRY NM 11/14/01 NS NS NS NS NS NS NS NS DRY NM 06/11/02 NS NS NS NS NS NS NS NS DRY NM 10/13/08 NOT INCLUDED IN THE SCOPE OF WORK FOR WORK ASSIGNMENT NM NM 09/15/98 NS NS NS NS NS NS NS NS 19.01 0.01 03/28/99 NS NS NS NS NS NS NS NS NM NM 06/16/99 NA 36 NA 0.110 0.048 0 6.2 0.200 19.84 0.00 09/09/99 NS NS NS NS NS NS NS NS 20.45 0.01 02/11/00 0.120 41 NA 0.130 0.091 0.730 5.2 0.640 22.39 0.00 06/25/00 0.260 36 NA 0.190 0.042 0.850 3.3 0.320 34.34 0.00 08/02/01 10.60 27 <0.020 <0.020 <0.020 0.367 5.05 0.312 28.62 0.00 11/14/01 5.4 28 <0.200 <0.100 <0.100 0.317 7.17 0.539 29.57 0.00 06/11/02 NA 36 0.071 0.05 0.02 0.200 2.78 0.209 30.73 0.00 10/13/08 NOT INCLUDED IN THE SCOPE OF WORK FOR WORK ASSIGNMENT NM NM DVE-1d DVE-2s DVE-2d MW-Gs MW-Gd DVE-1s Page 4 of 5 Table 1 Summary of Groundwater Monitoring Well Analytical Results (TOC Elev.)1 Date TPH-DRO TPH-GRO MTBE Benzene Toluene Ethyl- benzene Total Xylenes Naph- thalene Utah's ISLs2 1 1 0.2 0.005 1 0.7 10 0.7 Utah's RBCA Tier 13 10 10 0.2 0.3 3 4 10 0.7 Facility ID 40002050 / Release ID JDI Depth-to- Groundwater (feet) Groundwater Elevation (feet) Thickness of Free Product (feet) Former Beehive Credit Union 09/15/98 NS NS NS NS NS NS NS NS DRY NM 03/28/99 NS NS NS NS NS NS NS NS DRY NM 06/16/99 NS NS NS NS NS NS NS NS DRY NM 09/09/99 NS NS NS NS NS NS NS NS DRY NM 02/11/00 NS NS NS NS NS NS NS NS DRY NM 06/25/00 NS NS NS NS NS NS NS NS DRY NM 08/02/01 NS NS NS NS NS NS NS NS 16.76 0.00 11/14/01 NS NS NS NS NS NS NS NS DRY NM 06/11/02 NS NS NS NS NS NS NS NS DRY NM 10/13/08 NOT INCLUDED IN THE SCOPE OF WORK FOR WORK ASSIGNMENT NM NM 09/15/98 NS NS NS NS NS NS NS NS 18.46 0.01 03/28/99 NS NS NS NS NS NS NS NS NM NM 06/16/99 NS NS NS NS NS NS NS NS 19.40 0.07 09/09/99 NA 50 NA 0.130 3.9 1.5 8.70 0.240 20.21 0.00 02/11/00 0.780 3.90 NA 0.120 1.9 1.3 6.40 0.350 22.17 0.00 06/25/00 0.330 43 NA 0.190 2.30 1.8 8.90 0.601 24.03 0.00 08/02/01 47.4 42.6 <0.200 <0.020 1.55 1.6 8.02 0.482 28.18 0.00 11/14/01 20.9 54.5 <0.200 <0.100 1.07 2.47 1.06 0.588 29.23 0.00 06/11/02 NA 52 0.088 0.052 0.417 1.62 9.61 0.507 30.40 0.00 10/13/08 NOT INCLUDED IN THE SCOPE OF WORK FOR WORK ASSIGNMENT NM NM 09/15/98 NS NS NS NS NS NS NS NS DRY NM 03/28/99 NS NS NS NS NS NS NS NS DRY NM 06/16/99 NS NS NS NS NS NS NS NS DRY NM 09/09/99 NS NS NS NS NS NS NS NS DRY NM 02/11/00 NS NS NS NS NS NS NS NS DRY NM 06/25/00 NS NS NS NS NS NS NS NS DRY NM 08/02/01 NS NS NS NS NS NS NS NS DRY NM 11/14/01 NS NS NS NS NS NS NS NS DRY NM 06/11/02 NS NS NS NS NS NS NS NS DRY NM 10/13/08 NOT INCLUDED IN THE SCOPE OF WORK FOR WORK ASSIGNMENT NM NM 09/15/98 NS NS NS NS NS NS NS NS 17.71 0.01 03/28/99 NS NS NS NS NS NS NS NS NM NM 06/16/99 NA 130 NA 0.160 11 1.70 14 0.400 18.65 0.01 09/09/99 NA 16.0 NA 0.038 0.800 0.14 2.20 0.100 19.70 0.00 02/11/00 0.390 82.0 NA 0.200 8.2 1.90 12 0.830 21.65 0.00 06/25/00 0.310 54.0 NA 0.170 8.6 1.60 9.90 0.420 23.51 0.00 08/02/01 18.40 56.9 <0.200 <0.020 7.71 1.57 9.95 0.424 27.65 0.00 11/14/01 21.10 60.7 <0.200 <0.100 7.75 2.27 13.80 0.500 28.70 0.00 06/11/02 NA 64.4 <0.025 0.068 4.36 1.37 10.40 0.495 29.88 0.00 10/13/08 NOT INCLUDED IN THE SCOPE OF WORK FOR WORK ASSIGNMENT NM NM 09/15/98 NS NS NS NS NS NS NS NS DRY NM 03/28/99 NS NS NS NS NS NS NS NS NM NM 06/16/99 NS NS NS NS NS NS NS NS DRY NM 09/09/99 NS NS NS NS NS NS NS NS DRY NM 02/11/00 NS NS NS NS NS NS NS NS DRY NM 06/25/00 NS NS NS NS NS NS NS NS DRY NM 08/02/01 NS NS NS NS NS NS NS NS DRY NM 11/14/01 NS NS NS NS NS NS NS NS DRY NM 06/11/02 NS NS NS NS NS NS NS NS DRY NM 10/13/08 NOT INCLUDED IN THE SCOPE OF WORK FOR WORK ASSIGNMENT NM NM 09/15/98 NS NS NS NS NS NS NS NS 18.38 0.01 03/28/99 NS NS NS NS NS NS NS NS NM NM 06/16/99 NS NS NS NS NS NS NS NS 18.95 0.04 09/09/99 NS NS NS NS NS NS NS NS 20.16 0.04 02/11/00 5.10 86 NA 0.220 3.10 0.960 7.30 1.0 22.07 0.00 06/25/00 3.90 1.1 NA 0.057 0.34 0.120 1.40 0.120 23.99 0.00 08/02/01 38.70 45.9 <0.200 <0.020 3.58 1.33 5.76 0.486 28.02 0.00 11/14/01 13.70 35.8 <0.200 <0.100 4.39 1.75 9.69 0.430 29.19 0.00 06/11/02 NA 62.9 <0.025 0.074 3.81 1.54 9.17 0.522 30.26 0.00 10/13/08 NOT INCLUDED IN THE SCOPE OF WORK FOR WORK ASSIGNMENT NM NM NS - Not sampled. NA - Not analyzed for the specific compound or parameter. NM - Not measured. 1 - Top of Casing elevation surveyed in October 2008 relative to the top of the metal electrical supply conduit entering the light pole on the southeast corner of the property. 2 - The Utah DEQ's Initial Screening Levels for groundwater. 3 - The Utah DEQ's Risk-Based Corrective Action (RBCA) Concentrations are presented in miligrams per liter (mg/L). Tier 1 screening levels for groundwater. Bold value exceeds Method Detection Limit (MDL). Color shaded value exceeds screening level. NOTE: All data prior to October 2008 was reproduced by IHI from the Table 3 Groundwater Analytical and Water Table Database (c. 2002-2003) from the DERR project file. DVE-4s DVE-4d DVE-5s DVE-5d DVE-3s DVE-3d Page 5 of 5 Page 1 of 3 SSCL Calculator Prepared for:SSCL Calculator Prepared by: Site name: Site address: Facility ID: Release ID: Contact name: Contact phone: Contact e-mail: Site-Specific Cleanup Levels* for Commercial/ Industrial Receptors Air Groundwater Soil SSCLair SSCLwing SSCLwesp SSCLwamb SSCLs-leach SSCLsesp SSCLsamb SSCLss (See Eq. D.1)(See Eq. D.2)(See Eq. D.3)(See Eq. D.4)(See Eq. D.5)(See Eq. D.6)(See Eq. D.7)(See Eq. D.8) Air Groundwater Groundwater Groundwater Subsurface soil Subsurface soil Subsurface soil Surface Soil Inhalation Ingestion Indoor air (enclosed space) vapor inhalation Outdoor air (ambient) vapor inhalation Leaching to groundwater (groundwater ingestion) Indoor air (enclosed space) vapor inhalation Outdoor air (ambient) vapor inhalation Ingestion of soil, inhalation of vapors and particles, and dermal contact µg/m3 air µg/m3 air mg/L water mg/L water mg/L water mg/L water mg/kg soil mg/kg soil mg/kg soil mg/kg soil mg/kg soil Benzene (71-43-2)c 4.93E-01 9.87E-03 9.15E-01 3.86E+02 < RDL 2.57E-01 7.45E-03 2.40E-01 5.99E+00 Toluene (108-88-3)nc 7.31E+03 8.18E+00 1.54E+04 6.50E+06 0.27 MW-B 5.40E+02 2.36E+02 7.60E+03 5.42E+03 Ethylbenzene (100-41-4)nc 1.48E+03 1.02E+01 3.42E+03 1.45E+06 0.473 MW-B 1.49E+03 9.22E+01 2.97E+03 6.59E+03 Xylenes (1330-20-7)nc 1.48E+02 2.04E+01 3.02E+02 1.27E+05 2.34 MW-B 3.20E+03 1.35E+01 4.34E+02 8.15E+03 Naphthalene (91-20-3)nc 4.39E+00 2.04E+00 1.40E+01 4.99E+03 0.176 MW-B 4.51E+02 1.09E+01 3.49E+02 5.69E+02 MTBE (1634-04-04)nc 4.38E+03 5.11E-01 2.76E+03 6.41E+05 < RDL 2.97E+00 1.54E+02 4.95E+03 3.40E+02 Alkyl benzenes (C9-C10) [average values]nc 3.07E+02 4.09E+00 7.35E+02 3.12E+05 NA 1.36E+03 4.65E+01 1.50E+03 2.56E+03 Alkyl naphthalenes (C11-C13) [average values]nc 3.07E+02 4.09E+00 9.43E+02 3.38E+05 < RDL 7.47E+03 5.83E+03 1.88E+05 1.62E+04 Total PAHs (C12-C22) [average values]nc 1.53E+02 3.07E+00 1.74E+02 7.16E+04 < RDL 4.99E+04 2.15E+03 6.92E+04 1.04E+04 Aliphatics (C5-C6) [Hexane (110-54-3)]nc 3.07E+02 6.13E+00 6.53E+02 2.79E+05 NA 3.92E+03 6.41E-01 2.06E+01 3.73E+03 Aliphatics (C7-C8) [Heptane (142-82-5)]nc 3.07E+02 6.13E+00 7.90E+02 3.38E+05 NA 1.05E+04 1.17E+00 3.76E+01 3.73E+03 Aliphatics (C9-C10) [Nonane (111-84-2)]nc 1.48E+03 1.02E+01 4.46E+03 1.91E+06 NA 1.02E+05 1.66E+01 5.33E+02 6.59E+03 Aliphatics (C11-C12) [Undecane (1120-21-4)]nc 1.48E+03 1.02E+01 5.07E+03 2.17E+06 0.108 MW-D 8.53E+05 1.93E+02 6.22E+03 6.59E+03 Aliphatics (C13-C16) [Hexadecane (544-76-3)]nc 1.48E+03 1.02E+01 5.85E+03 2.50E+06 0.048 MW-D 1.32E+07 3.49E+03 1.12E+05 6.59E+03 Aliphatics (C17-C21) [Heptadecane (629-78-7)]nc 1.02E+04 2.04E+02 4.83E+04 2.07E+07 0.034 MW-D 2.11E+10 3.36E+06 1.08E+08 1.34E+05 Aliphatics (C22-C35) [Heptadecane (629-78-7)]nc 1.02E+04 2.04E+02 4.83E+04 2.07E+07 13.3 MW-B 2.11E+10 3.36E+06 1.08E+08 1.34E+05 (385) 391-8145 ebrennan@utah.gov Amy Austin CC0238 Terracon Consultants, Inc. (801) 746-5464 Amy.Austin@terracon.com Date prepared:12/9/2024 Former Beehive Credit Union 2205 East 2100 South, Salt Lake City, Utah 4002050 JDI Eileen Brennan Soil Comments (e.g. Sample ID, Sample Depth, Sample Date, etc.) Highest Soil Concentrations Remaining at the Site Name: Company, Agency, other: Phone: E-mail: UST Consultant Cert. #: Highest Air Concentrations Remaining at the Site Air Comments (e.g. Sample ID, Sample Date, etc.) Groundwater Comments (e.g. Sample ID, Sample Date, etc.)Chemical Name (CAS #) Pr i m a r y C h e m i c a l s o f C o n c e r n To t a l P e t r o l e u m H y d r o c a r b o n F r a c t i o n s Highest Groundwater Concentrations Remaining at the Site site-specific-cleanup-level-caculator-v-1-2.xls Page 1 of 3 12/9/2024 3:23 PM Table 2: Site-Specific Cleanup Level (SSCL) Calculator Results Page 2 of 3 Site-Specific Cleanup Levels* for Commercial/ Industrial Receptors Air Groundwater Soil SSCLair SSCLwing SSCLwesp SSCLwamb SSCLs-leach SSCLsesp SSCLsamb SSCLss (See Eq. D.1)(See Eq. D.2)(See Eq. D.3)(See Eq. D.4)(See Eq. D.5)(See Eq. D.6)(See Eq. D.7)(See Eq. D.8) Air Groundwater Groundwater Groundwater Subsurface soil Subsurface soil Subsurface soil Surface Soil Inhalation Ingestion Indoor air (enclosed space) vapor inhalation Outdoor air (ambient) vapor inhalation Leaching to groundwater (groundwater ingestion) Indoor air (enclosed space) vapor inhalation Outdoor air (ambient) vapor inhalation Ingestion of soil, inhalation of vapors and particles, and dermal contact µg/m3 air µg/m3 air mg/L water mg/L water mg/L water mg/L water mg/kg soil mg/kg soil mg/kg soil mg/kg soil mg/kg soil Soil Comments (e.g. Sample ID, Sample Depth, Sample Date, etc.) Highest Soil Concentrations Remaining at the Site Highest Air Concentrations Remaining at the Site Air Comments (e.g. Sample ID, Sample Date, etc.) Groundwater Comments (e.g. Sample ID, Sample Date, etc.)Chemical Name (CAS #) Highest Groundwater Concentrations Remaining at the Site Acenaphthylene (208-96-8)nc 1.53E+02 3.07E+00 1.22E+03 2.83E+05 < RDL 2.20E+03 8.48E+03 2.73E+05 1.25E+04 Acenaphthene (83-32-9)nc 8.69E+01 6.13E+00 5.54E+02 1.38E+05 < RDL 3.79E+03 2.98E+03 9.59E+04 1.46E+04 Fluorene (86-73-7)nc 5.62E+01 4.09E+00 5.38E+02 1.15E+05 < RDL 4.13E+03 5.68E+03 1.83E+05 1.24E+04 Phenanthrene (85-01-8)nc 1.53E+02 3.07E+00 3.34E+03 5.97E+05 < RDL 6.46E+03 8.57E+04 2.76E+06 1.45E+04 Anthracene (120-12-7)nc 4.38E+02 3.07E+01 8.10E+03 1.48E+06 < RDL 6.10E+04 1.93E+05 6.21E+06 1.19E+05 Fluoranthene (206-44-0)nc 5.83E+01 4.09E+00 4.04E+03 6.44E+05 < RDL 2.94E+04 3.81E+05 1.23E+07 1.93E+04 Pyrene (129-00-0)nc 4.38E+01 3.07E+00 3.77E+03 5.88E+05 < RDL 2.04E+04 3.32E+05 1.07E+07 1.46E+04 Benz(a)Anthracene (56-55-3)c 1.96E-01 3.92E-04 1.41E+01 2.20E+03 < RDL 1.03E+01 4.95E+03 1.59E+05 2.01E+00 Chrysene (218-01-09)c 1.96E+00 3.92E-02 3.72E+02 5.66E+04 < RDL 8.25E+02 1.05E+05 3.39E+06 1.99E+02 Benzo(b)Fluoranthene (205-99-2) c 1.96E-02 3.92E-04 9.33E-01 1.56E+02 < RDL 8.41E+00 2.55E+02 8.21E+03 1.98E+00 Benzo(k)-Fluoranthene (207-08-09) c 1.96E-01 3.92E-03 9.31E+02 1.38E+05 < RDL 1.23E+02 3.98E+05 1.28E+07 2.01E+01 Benzo(a)-Pyrene (50-32-8)c 2.35E-03 3.92E-05 2.32E+00 3.46E+02 < RDL 1.33E+00 1.07E+03 3.45E+04 2.01E-01 Indeno(1, 2, 3-Cd)Pyrene (193-39- 5)c 2.35E-02 3.92E-04 1.93E+03 1.20E+05 < RDL 8.11E-01 6.80E+04 7.75E+05 2.01E+00 Dibenzo-(a, h)Anthracene (53-70- 3)c 2.35E-02 3.92E-04 5.72E+01 8.49E+03 < RDL 7.51E+01 1.50E+05 4.81E+06 2.01E+00 Benzo (g, h, i)-Perylene (191-24-2) nc 1.53E+02 3.07E+00 8.55E+04 1.28E+07 < RDL 2.46E+05 9.34E+07 3.00E+09 1.57E+04 Not used c Not used Not used Not used Not used Not used Not used Not used Not used Not used c Not used Not used Not used Not used Not used Not used Not used Not used Not used c Not used Not used Not used Not used Not used Not used Not used Not used Not used c Not used Not used Not used Not used Not used Not used Not used Not used Not used c Not used Not used Not used Not used Not used Not used Not used Not used Not used c Not used Not used Not used Not used Not used Not used Not used Not usedAd d i t i o n a l C h e m i c a l s o f C o n c e r n (c a r c i n o g e n t s ) In d i v i d u a l P o l y n u c l e a r A r o m a t i c H y d r o c a r b o n s ( P A H s ) site-specific-cleanup-level-caculator-v-1-2.xls Page 2 of 3 12/9/2024 3:23 PM Table 2: Site-Specific Cleanup Level (SSCL) Calculator Results Page 3 of 3 Site-Specific Cleanup Levels* for Commercial/ Industrial Receptors Air Groundwater Soil SSCLair SSCLwing SSCLwesp SSCLwamb SSCLs-leach SSCLsesp SSCLsamb SSCLss (See Eq. D.1)(See Eq. D.2)(See Eq. D.3)(See Eq. D.4)(See Eq. D.5)(See Eq. D.6)(See Eq. D.7)(See Eq. D.8) Air Groundwater Groundwater Groundwater Subsurface soil Subsurface soil Subsurface soil Surface Soil Inhalation Ingestion Indoor air (enclosed space) vapor inhalation Outdoor air (ambient) vapor inhalation Leaching to groundwater (groundwater ingestion) Indoor air (enclosed space) vapor inhalation Outdoor air (ambient) vapor inhalation Ingestion of soil, inhalation of vapors and particles, and dermal contact µg/m3 air µg/m3 air mg/L water mg/L water mg/L water mg/L water mg/kg soil mg/kg soil mg/kg soil mg/kg soil mg/kg soil Soil Comments (e.g. Sample ID, Sample Depth, Sample Date, etc.) Highest Soil Concentrations Remaining at the Site Highest Air Concentrations Remaining at the Site Air Comments (e.g. Sample ID, Sample Date, etc.) Groundwater Comments (e.g. Sample ID, Sample Date, etc.)Chemical Name (CAS #) Highest Groundwater Concentrations Remaining at the Site Not used nc Not used Not used Not used Not used Not used Not used Not used Not used Not used nc Not used Not used Not used Not used Not used Not used Not used Not used Not used nc Not used Not used Not used Not used Not used Not used Not used Not used Not used nc Not used Not used Not used Not used Not used Not used Not used Not used Not used nc Not used Not used Not used Not used Not used Not used Not used Not used Not used nc Not used Not used Not used Not used Not used Not used Not used Not used * - Site-Specific Cleanup Levels assume a Natural Attenuation Factor of 1 (i.e. no natural attenuation). c - carcinogen; nc - non-carcinogen Site-specific Parameters used in Calculations Parameter Comments Soil Receptor i Lgw Ls Pavement Precip. Soil Zone W inches/year Not applicable ft Units Not applicable Not applicable ft-vertical/ft-lateral ft Not applicable ft NOAA Expansion of Phase 2 Subsurface Investigation, 10/27/97; Figure 2 Geologic Cross- Section Expansion of Phase 2 Subsurface Investigation, 10/27/97; Figure 2 Geologic Cross- Section Expansion of Phase 2 Subsurface Investigation, 10/27/97; Figure 2 Geologic Cross- Section Commercial October 2024 Groundwater Monitoring Report; MW-1 to MW-3 Expansion of Phase 2 Subsurface Investigation, 10/27/97; Figure 2 Geologic Cross- Section October 2024 Groundwater Monitoring Report; MW-B (near source area former tank basin) 16.5 Yes 50 Value Clayey sand (fine sand) Commercial/ Industrial 0.022 29.07 4 PAVED: contamination beneath pavement Depth to groundwater Hydraulic gradient Select the most sensitive Receptor that is present at the site Soil type representative of site Description Width of contaminated source area parallel to groundwater flow or wind direction Annual precipitation Is contamination present in the saturated zone? Is contamination beneath pavement or bare soils? Depth to contaminated soil Ad d i t i o n a l C h e m i c a l s o f C o n c e r n (n o n - c a r c i n o g e n t s ) site-specific-cleanup-level-caculator-v-1-2.xls Page 3 of 3 12/9/2024 3:23 PM Table 2: Site-Specific Cleanup Level (SSCL) Calculator Results Appendix C Chain of Custody and Laboratory Data Sheets The analyses presented on this report were performed in accordance with the National Environmental Laboratory Accreditation Program (NELAP) unless noted in the comments, flags, or case narrative. If the report is to be used for regulatory compliance, it should be presented in its entirety, and not be altered. Client Service Contact: 801.262.7299 Terracon IHI Attn: Steve Maliszeski 6949 South High Tech Drive Midvale, UT 84047 Work Order: 24J2293 Project: Beehive Credit Union 11/4/2024 Approved By: Mark Broadhead, Project Manager 9632 South 500 West Sandy, Utah 84070 Serving the Intermountain West since 1953 801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com Page 1 of 8 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Terracon IHI Steve Maliszeski 6949 South High Tech Drive Midvale, UT 84047 PO#: Receipt: Date Reported: Project Name: 10/25/24 16:00 @ 16.3 °C 11/4/2024 Beehive Credit Union Sample ID: MW-1 Lab ID: 24J2293-01Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 10/25/24 14:00 Preparation Date/Time Sampled By: Steve Maliszeski Minimum Reporting Limit MethodResult MBTEXn mg/L 10/31/2410/31/240.005 EPA 8260D/5030BNDBenzene mg/L 10/31/2410/31/240.012 EPA 8260D/5030B0.040Ethylbenzene mg/L 10/31/2410/31/240.008 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE) mg/L 10/31/2410/31/240.012 EPA 8260D/5030B0.047Naphthalene mg/L 10/31/2410/31/240.012 EPA 8260D/5030BNDToluene mg/L 10/31/2410/31/240.038 EPA 8260D/5030B0.403Xylenes, total Gasoline Range mg/L 10/31/2410/31/240.125 EPA 8260B/C /5030A/[CALC]11.0Gasoline Range Organics Diesel Range mg/L 11/1/2410/31/241.0 EPA 8015 C4.3Diesel Range Organics Project Name: Beehive Credit Union CtF WO#: 24J2293 www.ChemtechFord.com Page 2 of 8Page 2 of 8 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Terracon IHI Steve Maliszeski 6949 South High Tech Drive Midvale, UT 84047 PO#: Receipt: Date Reported: Project Name: 10/25/24 16:00 @ 16.3 °C 11/4/2024 Beehive Credit Union Sample ID: MW-2 Lab ID: 24J2293-02Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 10/25/24 13:30 Preparation Date/Time Sampled By: Steve Maliszeski Minimum Reporting Limit MethodResult MBTEXn mg/L 10/30/2410/30/240.005 EPA 8260D/5030BNDBenzene mg/L 10/30/2410/30/240.012 EPA 8260D/5030BNDEthylbenzene mg/L 10/30/2410/30/240.008 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE) mg/L J-LOW-L10/30/2410/30/240.012 EPA 8260D/5030BNDNaphthalene mg/L 10/30/2410/30/240.012 EPA 8260D/5030BNDToluene mg/L 10/30/2410/30/240.038 EPA 8260D/5030BNDXylenes, total Gasoline Range mg/L 10/30/2410/30/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics Diesel Range mg/L 10/29/2410/29/241.0 EPA 8015 CNDDiesel Range Organics Project Name: Beehive Credit Union CtF WO#: 24J2293 www.ChemtechFord.com Page 3 of 8Page 3 of 8 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Terracon IHI Steve Maliszeski 6949 South High Tech Drive Midvale, UT 84047 PO#: Receipt: Date Reported: Project Name: 10/25/24 16:00 @ 16.3 °C 11/4/2024 Beehive Credit Union Sample ID: MW-3 Lab ID: 24J2293-03Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 10/25/24 13:50 Preparation Date/Time Sampled By: Steve Maliszeski Minimum Reporting Limit MethodResult MBTEXn mg/L 10/30/2410/30/240.005 EPA 8260D/5030BNDBenzene mg/L 10/30/2410/30/240.012 EPA 8260D/5030B0.211Ethylbenzene mg/L 10/30/2410/30/240.008 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE) mg/L J-LOW-L10/30/2410/30/240.012 EPA 8260D/5030B0.036Naphthalene mg/L B10/30/2410/30/240.012 EPA 8260D/5030B0.015Toluene mg/L B10/30/2410/30/240.038 EPA 8260D/5030B0.570Xylenes, total Gasoline Range mg/L 10/30/2410/30/240.125 EPA 8260B/C /5030A/[CALC]3.50Gasoline Range Organics Diesel Range mg/L 10/29/2410/29/241.0 EPA 8015 C2.2Diesel Range Organics Project Name: Beehive Credit Union CtF WO#: 24J2293 www.ChemtechFord.com Page 4 of 8Page 4 of 8 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Terracon IHI Steve Maliszeski 6949 South High Tech Drive Midvale, UT 84047 PO#: Receipt: Date Reported: Project Name: 10/25/24 16:00 @ 16.3 °C 11/4/2024 Beehive Credit Union Sample ID: MW-B Lab ID: 24J2293-04Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 10/25/24 13:40 Preparation Date/Time Sampled By: Steve Maliszeski Minimum Reporting Limit MethodResult MBTEXn mg/L 10/30/2410/30/240.005 EPA 8260D/5030BNDBenzene mg/L 10/30/2410/30/240.012 EPA 8260D/5030B0.473Ethylbenzene mg/L 10/30/2410/30/240.008 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE) mg/L J-LOW-L10/30/2410/30/240.012 EPA 8260D/5030B0.176Naphthalene mg/L B10/30/2410/30/240.012 EPA 8260D/5030B0.270Toluene mg/L B10/30/2410/30/240.038 EPA 8260D/5030B2.34Xylenes, total Gasoline Range mg/L 10/30/2410/30/240.125 EPA 8260B/C /5030A/[CALC]12.0Gasoline Range Organics Diesel Range mg/L 10/29/2410/29/241.0 EPA 8015 C4.6Diesel Range Organics Semi-Volatile Compounds ug/L 10/29/2410/29/2410EPA 8270E/351189C11-12 Aliphatic hydrocarbons ug/L 10/29/2410/29/2410EPA 8270E/351140C13-C16 Aliphatic hydrocarbons ug/L 10/29/2410/29/2410EPA 8270E/351132C17-C21 Aliphatic hydrocarbons ug/L 10/29/2410/29/2410EPA 8270E/351113300C22-C35 Aliphatic hydrocarbons ug/L 10/29/2410/29/2410EPA 8270E/3511NDC11-C13 Alkyl Naphthalenes ug/L 10/29/2410/29/2410EPA 8270E/3511NDTotal C12-C22 PAH ug/L 10/29/2410/29/2410EPA 8270E/3511NDAcenaphthene ug/L 10/29/2410/29/2410EPA 8270E/3511NDAcenaphthylene ug/L 10/29/2410/29/2410EPA 8270E/3511NDAnthracene ug/L 10/29/2410/29/2410EPA 8270E/3511NDBenzo (a) anthracene ug/L 10/29/2410/29/2410EPA 8270E/3511NDBenzo (a) pyrene ug/L 10/29/2410/29/2410EPA 8270E/3511NDBenzo (b) fluoranthene ug/L 10/29/2410/29/2410EPA 8270E/3511NDBenzo (g,h,i) perylene ug/L 10/29/2410/29/2410EPA 8270E/3511NDBenzo (k) fluoranthene ug/L 10/29/2410/29/2410EPA 8270E/3511NDChrysene ug/L 10/29/2410/29/2410EPA 8270E/3511NDDibenzo (a,h) anthracene ug/L 10/29/2410/29/2410EPA 8270E/3511NDFluoranthene ug/L 10/29/2410/29/2410EPA 8270E/3511NDFluorene ug/L 10/29/2410/29/2410EPA 8270E/3511NDIndeno (1,2,3-cd) pyrene ug/L 10/29/2410/29/2410EPA 8270E/3511NDPhenanthrene ug/L 10/29/2410/29/2410EPA 8270E/3511NDPyrene Project Name: Beehive Credit Union CtF WO#: 24J2293 www.ChemtechFord.com Page 5 of 8Page 5 of 8 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Terracon IHI Steve Maliszeski 6949 South High Tech Drive Midvale, UT 84047 PO#: Receipt: Date Reported: Project Name: 10/25/24 16:00 @ 16.3 °C 11/4/2024 Beehive Credit Union Sample ID: MW-D Lab ID: 24J2293-05Matrix: Water Flag(s)Units Analysis Date/Time Date Sampled: 10/25/24 14:12 Preparation Date/Time Sampled By: Steve Maliszeski Minimum Reporting Limit MethodResult MBTEXn mg/L 10/30/2410/30/240.005 EPA 8260D/5030BNDBenzene mg/L 10/30/2410/30/240.012 EPA 8260D/5030B0.120Ethylbenzene mg/L 10/30/2410/30/240.008 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE) mg/L J-LOW-L10/30/2410/30/240.012 EPA 8260D/5030B0.038Naphthalene mg/L B10/30/2410/30/240.012 EPA 8260D/5030B0.051Toluene mg/L B10/30/2410/30/240.038 EPA 8260D/5030B0.063Xylenes, total Gasoline Range mg/L 10/30/2410/30/240.125 EPA 8260B/C /5030A/[CALC]2.05Gasoline Range Organics Diesel Range mg/L 10/29/2410/29/241.0 EPA 8015 C2.0Diesel Range Organics Semi-Volatile Compounds ug/L 10/29/2410/29/2410EPA 8270E/3511108C11-12 Aliphatic hydrocarbons ug/L 10/29/2410/29/2410EPA 8270E/351148C13-C16 Aliphatic hydrocarbons ug/L 10/29/2410/29/2410EPA 8270E/351134C17-C21 Aliphatic hydrocarbons ug/L 10/29/2410/29/2410EPA 8270E/351111500C22-C35 Aliphatic hydrocarbons ug/L 10/29/2410/29/2410EPA 8270E/3511NDC11-C13 Alkyl Naphthalenes ug/L 10/29/2410/29/2410EPA 8270E/3511NDTotal C12-C22 PAH ug/L 10/29/2410/29/2410EPA 8270E/3511NDAcenaphthene ug/L 10/29/2410/29/2410EPA 8270E/3511NDAcenaphthylene ug/L 10/29/2410/29/2410EPA 8270E/3511NDAnthracene ug/L 10/29/2410/29/2410EPA 8270E/3511NDBenzo (a) anthracene ug/L 10/29/2410/29/2410EPA 8270E/3511NDBenzo (a) pyrene ug/L 10/29/2410/29/2410EPA 8270E/3511NDBenzo (b) fluoranthene ug/L 10/29/2410/29/2410EPA 8270E/3511NDBenzo (g,h,i) perylene ug/L 10/29/2410/29/2410EPA 8270E/3511NDBenzo (k) fluoranthene ug/L 10/29/2410/29/2410EPA 8270E/3511NDChrysene ug/L 10/29/2410/29/2410EPA 8270E/3511NDDibenzo (a,h) anthracene ug/L 10/29/2410/29/2410EPA 8270E/3511NDFluoranthene ug/L 10/29/2410/29/2410EPA 8270E/3511NDFluorene ug/L 10/29/2410/29/2410EPA 8270E/3511NDIndeno (1,2,3-cd) pyrene ug/L 10/29/2410/29/2410EPA 8270E/3511NDPhenanthrene ug/L 10/29/2410/29/2410EPA 8270E/3511NDPyrene Project Name: Beehive Credit Union CtF WO#: 24J2293 www.ChemtechFord.com Page 6 of 8Page 6 of 8 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Terracon IHI Steve Maliszeski 6949 South High Tech Drive Midvale, UT 84047 PO#: Receipt: Date Reported: Project Name: 10/25/24 16:00 @ 16.3 °C 11/4/2024 Beehive Credit Union Report Footnotes Abbreviations ND = Not detected at the corresponding Minimum Reporting Limit (MRL). 1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million. 1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion. 1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion. On calculated parameters, there may be a slight difference between summing the rounded values shown on the report vs the unrounded values used in the calculation. Flag Descriptions B = Analyte is found in the associated blank as well as in the sample (CLP B-flag). J-LOW-L = Estimated low due to low recovery of LCS Project Name: Beehive Credit Union CtF WO#: 24J2293 www.ChemtechFord.com Page 7 of 8Page 7 of 8 MW-1 taken off of Hold status for MBTEXN GRO &DRO per Steve 10-28-2024 Product ID on hold pending result Page 8 of 8