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HomeMy WebLinkAboutDERR-2024-004173 Palmer Tire GW Monitoring Report Page 1 ATLAS 358 South 700 East, B518 Salt Lake City UT 84102 Office: 801.935.4917 www.oneatlas.com January 16, 2024 Mr. Mark Crim Utah Department of Environmental Quality Division of Environmental Response and Remediation 195 North 1950 West Salt Lake City, Utah 84114-4840 SUBJECT: Groundwater Monitoring Report – November 2023 Palmer Tire 395 South 200 East Roosevelt, Utah Facility ID #9000371 UST Release Site MLS Work Assignment MLS-21 UDEQ Technical Services Contract #216364 Dear Mr. Crim: Please find attached a copy of the November 2023 Groundwater Monitoring Report for the above referenced site. INTRODUCTION The work conducted on November 27, 2023, was performed on behalf of the Utah Department Environmental Quality, Division of Environmental Response and Remediation (DERR), under Work Assignment MLS-21. FIELD PARAMETER WELL PURGING PROCEDURES AND CHEMICAL ANALYSIS The approved work plan included gauging MW -10, and sampling monitoring wells MW -14, MW- 15, and MW -17 through MW -22. However, monitoring well MW -17 contained 1.58 ft. of free product and MW -20 was destroyed when the asphalt in the area was removed. The wells with free product present were not sampled. During the prior sampling event conducted in November 2023 free product was measured at 0.50 ft. in MW-17 and 0.02 ft. in MW-18. Free product was not detected in MW -18 during the November 2023 sampling event. Free product first appeared in MW -18 in February 2020 and has consistently been present with the exception of the sampling events conducted in September 2022 and November 2023. Approximately 0.32 ft. of free product was measured in MW -10 during the November 2023 sampling event. A site map depicting the groundwater monitoring well locations and surrounding area features is presented as Figure 1. Prior to well purging, groundwater depths were measured in each well using an electronic water level/free product interface probe. The water level/free product interface probe was decontaminated between each well with an Alconox detergent wash and tap water rinse. Following field parameter measurements, the monitoring wells not containing free product were purged using new, factory-sealed disposable PVC bailers. All the monitoring wells sampled were purged three well casing volumes or until dry. Groundwater removed from the wells was poured on the asphalt surface and allowed to evaporate. After the purging process, the wells Palmer Tire GW Monitoring Report Page 2 ATLAS were allowed to recharge to within 95 percent of the pre-purge water level before groundwater samples were collected. The samples were transferred to appropriate containers and immediately placed on ice in an insulated cooler and then transported under chain-of-custody documentation to a Utah-certified laboratory for analysis. The groundwater samples were analyzed for total petroleum hydrocarbons as gasoline (TPH-GRO) and TPH as diesel (TPH- DRO) using EPA Method 8015; and for methyl t-butyl ether, benzene, toluene, ethyl benzene, total xylenes, and naphthalene (MBTEXN) using EPA Method 8260. A field blank sample was also collected during the sampling effort and submitted for laboratory analysis. A laboratory prepared trip blank was included in the cooler and submitted for laboratory analysis. The laboratory report and chain of custody are presented in Appendix A. Field parameter measurements and groundwater laboratory results are presented in Table 1. Groundwater elevation data collected from wells indicates groundwater flows to the south- southwest at a gradient of 0.090 ft/ft between MW-22 and MW-15. The groundwater gradient map is presented as Figure 2. The laboratory results for the samples collected in November 2023 indicate that the benzene Tier I Screening Level was exceeded in MW -21 (1.460 mg/L). Benzene concentrations were also detected in MW -11 (0.129 mg/L), MW -14 (0.00946 mg/L), MW -15 (0.0143 mg/L), MW -19 (0.00194 mg/L), and MW-22 (0.00217 mg/L). No other BTEXN constituents were measured above their respective Tier I Screening Levels in any of the other wells sampled. The benzene isoconcentration map is presented as Figure 3. The laboratory results indicated no detection of TPH-GRO above the Tier I Screening Level of 10 mg/L in any of the monitoring wells sampled. TPH-GRO was detected in MW -11 (0.424 mg/L), MW -14 (9.870 mg/L), MW -18 (1.630 mg/L), MW -19 (0.671 mg/L), and MW -21 (3.330 mg/L). The TPH-GRO isoconcentration map is presented as Figure 4. TPH-DRO was measured above the Tier I Screening Level of 10 mg/L in MW -14 (17.200 mg/L) and MW -15 (11.400 mg/L). TPH-DRO was also detected in MW -11 (6.130 mg/L), MW -18 (5.670 mg/L), MW -19 (1.740 mg/L), MW -21 (9.140 mg/L), and MW -22 (2.810 mg/L). The TPH-DRO isoconcentration map is presented as Figure 5. CONCLUSIONS AND RECOMMENDATIONS Free product was measured in MW -10 and MW-17 during the November 2023 groundwater monitoring event. The data collected during the monitoring event indicate the presence of benzene above the Tier I Screening Level in MW-21. TPH-DRO was also detected above the Tier I Screening Level in MW -14 and MW -15. No other exceedances of Tier I Screening Levels were noted in any of the other wells sampled. Based upon the November 2023 laboratory results and historical groundwater monitoring data collected at the site, Atlas recommends the quarterly groundwater monitoring program continue at the site. The next groundwater monitoring event is scheduled for February 2024. Our services consist of professional opinions and recommendations made in accordance with generally accepted geotechnical and environmental engineering principles and practices. This warranty is in lieu of all other warranties either expressed or implied. Should you have any questions, please do not hesitate to call us at (801) 935-4917. Palmer Tire GW Monitoring Report Page 3 ATLAS Sincerely, Atlas Technical Consultants LLC Olaf Questereit James J. Coletta, P.G. Staff Scientist Branch Manager GS #1326 Utah Certified UST Consultant UST CC #0150 OQ/JC FIGURES 20 0 E A S T MOVIE GALLERY (LCL OIL) PALMER TIRE ELECTRICAL SEEP RESIDENTIAL RESIDENTIAL RESIDENTIAL DISPENSOR ISLANDS ELECTRICAL LINE SEEP AREA FENCE G G G G G G G G G G G G G NATURAL GAS ST E E P S L O P E STEEP SLOPE TP TP TELEPHONE POLE W W W W W W W S WATER LINE (Approximate Depth = 5') SEWER LINE (Approximate Depth = 8') US H W Y 4 0 INSTALLED JANUARY 2008 MONITORING WELL LOCATION INSTALLED OCTOBER 2008 IRRIGATION WATER LINE 271EM00757PROJECT NUMBER:DATE:10-26-21 1 FIGURE DRAWN BY:JCAPPROVED BY:BIX W W W W W W W W W S S W W W W WESTERN PETROLEUM W W W W W W W W W W S S S S S S MONITORING WELL LOCATION (02-14) W W W W W W G G G G G G G G G NEW MONITORING WELL LOCATION (05-17) W W W W W W ABANDONED OR DESTROYED WELL 358 South 700 East, B518 Salt Lake City, Utah 84102 801-935-4917 20 0 E A S T MOVIE GALLERY (LCL OIL) PALMER TIRE ELECTRICAL SEEP RESIDENTIAL RESIDENTIAL RESIDENTIAL DISPENSOR ISLANDS ELECTRICAL LINE SEEP AREAFENCE G G G G G G G G G G G G G NATURAL GAS ST E E P S L O P E STEEP SLOPE TP TP TELEPHONE POLE W W W W W W W S WATER LINE (Approximate Depth = 5') SEWER LINE (Approximate Depth = 8') US H W Y 4 0 INSTALLED JANUARY 2008 MONITORING WELL LOCATION INSTALLED OCTOBER 2008 IRRIGATION WATER LINE 271EM00757PROJECT NUMBER:DATE:01-08-24 2 FIGURE DRAWN BY:JCAPPROVED BY:OQ W W W W W W W W W S S W W W W WESTERN PETROLEUM W W W W W W W W W W S S S S S MONITORING WELL LOCATION (02-14) W W W W W W G G G G G G G G G NEW MONITORING WELL LOCATION (05-17) W W W W W W ABANDONED OR DESTROYED WELL MONITORING WELL LOCATION WITH GROUNDWATER ELEVATION IN FEET ESTIMATED GROUNDWATER CONTOUR LINE MEASURED IN FEET NOT LOCATED 358 South 700 East, B518 Salt Lake City, Utah 84102 801-935-4917 20 0 E A S T MOVIE GALLERY (LCL OIL) PALMER TIRE ELECTRICAL SEEP RESIDENTIAL RESIDENTIAL RESIDENTIAL DISPENSOR ISLANDS ELECTRICAL LINE SEEP AREAFENCE G G G G G G G G G G G G G NATURAL GAS ST E E P S L O P E STEEP SLOPE TP TP TELEPHONE POLE W W W W W W W S WATER LINE (Approximate Depth = 5') SEWER LINE (Approximate Depth = 8') US H W Y 4 0 IRRIGATION WATER LINE 271EM00757PROJECT NUMBER:DATE:01-09-24 3 FIGURE DRAWN BY:JCAPPROVED BY:OQ W W W W W W W W W S S W W W W WESTERN PETROLEUM W W W W W W W W W W S S S S S W W W W W W G G G G G G G G G W W W W W W MONITORING WELL LOCATION WITH BENZENE CONCENTRATION MEASURED IN mg/L ESTIMATED BENZENE ISOCONCENTRATION LINE MEASURED IN mg/L NOT SAMPLED PRODUCT PRESENT INSTALLED JANUARY 2008 MONITORING WELL LOCATION INSTALLED OCTOBER 2008 MONITORING WELL LOCATION (02-14) NEW MONITORING WELL LOCATION (05-17) ABANDONED OR DESTROYED WELL 358 South 700 East, B518 Salt Lake City, Utah 84102 801-935-4917 20 0 E A S T MOVIE GALLERY (LCL OIL) PALMER TIRE ELECTRICAL SEEP RESIDENTIAL RE S I D E N T I A L RESIDENTIAL DISPENSOR ISLANDS ELECTRICAL LINE SEEP AREA FENCE G G G G G G G G G G G G G NATURAL GAS ST E E P S L O P E STEEP SLOPE TP TP TELEPHONE POLE W W W W W W W S WATER LINE (Approximate Depth = 5') SEWER LINE (Approximate Depth = 8') US H W Y 4 0 INSTALLED JANUARY 2008 MONITORING WELL LOCATION INSTALLED OCTOBER 2008 IRRIGATION WATER LINE 271EM00757PROJECT NUMBER:DATE:01-09-23 4 FIGURE DRAWN BY:JCAPPROVED BY:OQ W W W W W W W W W S S W W W W WESTERN PETROLEUM W W W W W W W W W W S S S S S MONITORING WELL LOCATION (02-14) W W W W W W G G G G G G G G G NEW MONITORING WELL LOCATION (05-17) W W W W W W MONITORING WELL LOCATION WITH TPH-GRO CONCENTRATION MEASURED IN mg/L ESTIMATED TPH-GRO ISOCONCENTRATION LINE MEASURED IN mg/L NOT SAMPLED ABANDONED OR DESTROYED WELL 358 South 700 East, B518 Salt Lake City, Utah 84102 801-935-4917 20 0 E A S T MOVIE GALLERY (LCL OIL) PALMER TIRE ELECTRICAL SEEP RESIDENTIAL RE S I D E N T I A L RESIDENTIAL DISPENSOR ISLANDS ELECTRICAL LINE SEEP AREA FENCE G G G G G G G G G G G G G NATURAL GAS ST E E P S L O P E STEEP SLOPE TP TP TELEPHONE POLE W W W W W W W S WATER LINE (Approximate Depth = 5') SEWER LINE (Approximate Depth = 8') US H W Y 4 0 INSTALLED JANUARY 2008 MONITORING WELL LOCATION INSTALLED OCTOBER 2008 IRRIGATION WATER LINE 271EM00757PROJECT NUMBER:DATE:01-10-24 5 FIGURE DRAWN BY:JCAPPROVED BY:OQ W W W W W W W W W S S W W W W WESTERN PETROLEUM W W W W W W W W W W S S S S S MONITORING WELL LOCATION (02-14) W W W W W W G G G G G G G G G NEW MONITORING WELL LOCATION (05-17) W W W W W W ABANDONED OR DESTROYED WELL MONITORING WELL LOCATION WITH TPH-DRO CONCENTRATION MEASURED IN mg/L ESTIMATED TPH-DRO ISOCONCENTRATION LINE MEASURED IN mg/L NOT SAMPLED 358 South 700 East, B518 Salt Lake City, Utah 84102 801-935-4917 TABLES TABLE 1 GROUNDWATER ANALYTICAL AND ELEVATION DATA SUMMARY PALMER TIRE 395 SOUTH 200 EAST ROOSEVELT, UTAH SAMPLE ETHYL-NAPH-ORGANIC LOCATION DATE BENZENE BENZENE MTBE THALENE TOLUENE XYLENES TPH-GRO TPH-DRO LEAD LEAD DTW FPT WTE TOC (ft.)MM/DD/YY (mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(feet)(feet)(feet) Initial Screening Levels 0.005 0.7 0.2 0.7 1.0 10 1.0 1.0 NE NE RBCA Tier 1 Screening 0.3 4.0 0.2 0.7 3.0 10 10 10 NE NE MW-1 03/19/08 0.986 0.842 0.192 0.180 0.081 0.530 2.16 F,J 3.80 F,X NA NA 17.40 0.00 80.09 97.49 05/15/08 0.559 0.92 0.097 0.21 <0.005 0.27400 2.42 F,J <2.0 NA NA 17.35 0.00 80.14 5074.04 11/07/08 NS NS NS NS NS NS NS NS NA NA 17.36 0.00 5056.68 02/04/09 0.260 0.410 0.130 0.031 0.0061J 0.0884 3.60 4.20 NA NA 17.51 0.00 5056.53 06/10/09 0.120 0.350 0.130 0.0052J 0.0015J 0.0097J 2.50 5.10 NA NA 17.29 0.00 5056.75 09/30/09 0.150 0.650 0.110 0.015 0.0031 0.0528 4.10 4.10 NA NA 17.02 0.00 5057.02 04/13/10 0.031 0.190 0.180 0.0014 0.0012 0.00155 1.4 1.5 NA NA 17.53 0.00 5056.51 09/29/10 0.061 0.350 0.150 <0.005 <0.005 <0.005 2.7 1.8 NA NA 17.50 0.00 5056.54 03/06/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 09/17/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 12/22/14 NS NS NS NS NS NS NS NS NS NS NM NM NM MW-2 03/19/08 <0.001 <0.001 <0.001 0.027 B <0.001 <0.003 0.493 F,J <2.0 F,X NA NA 6.18 0.00 88.08 94.26 05/15/08 <0.001 0.001 <0.001 0.007 B <0.001 <0.003 <0.05 F <2.0 F,X NA NA 7.01 0.00 87.25 5070.81 11/07/08 NS NS NS NS NS NS NS NS NA NA 6.89 0.00 5063.92 02/04/09 0.0026J 0.0023J <0.005 0.00017J 0.00081J 0.0024J 0.044J 0.520 NA NA 7.70 0.00 5063.11 06/10/09 <0.005 0.00031J <0.005 <0.005 <0.005 <0.005 <0.1 0.140 NA NA 8.56 0.00 5062.25 09/30/09 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.1 <0.1 NA NA 9.14 0.00 5061.67 04/13/10 <0.001 <0.001 <0.001 <0.001 <0.002 <0.001 <0.1 0.27 NA NA 11.85 0.00 5058.96 09/29/10 0.00017J <0.001 <0.001 <0.001 <0.001 <0.001 0.027J 0.16 NA NA 11.69 0.00 5059.12 03/06/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 09/17/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 12/22/14 NS NS NS NS NS NS NS NS NS NS NM NM NM MW-3 03/19/08 <0.001 <0.001 <0.001 0.015 B <0.001 0.014 B 3.10 F <2.0 F,UJ,X NA NA 12.83 0.00 79.10 91.93 05/15/08 <0.001 <0.001 <0.001 <0.005 <0.001 <0.003 0.237 F <2.0 F,X NA NA 12.84 0.00 79.09 5069.48 11/07/08 0.022 J 0.180 <0.005 0.130 0.009 J 0.240 67 140 NA NA 12.81 0.14 5056.78 01/27/09 NS NS NS NS NS NS NS NS NA NA 13.10 0.01 5056.39 02/04/09 13.12 0.00 5056.36 06/10/09 0.0076 0.014 0.008 0.074 <0.005 0.065 2.40 510 NA NA 12.74 0.03 5056.76 09/30/09 0.021 0.020 0.015 0.044 <0.001 0.049 5.70 110 NA NA 12.53 0.01 5056.96 04/13/10 0.0025 <0.001 <0.001 0.020 <0.001 0.0263 1.9 170 NA NA 13.02 0.00 5056.46 09/29/10 13.00 0.00 5056.48 03/06/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 09/17/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 12/22/14 NS NS NS NS NS NS NS NS NS NS NM NM NM MW-4 03/19/08 16.34 0.00 75.05 91.39 05/15/08 <0.001 <0.001 0.0660 <0.005 <0.001 <0.003 <0.05 F <2.0 F,X NA NA 14.51 0.00 76.88 5067.95 11/07/08 NS NS NS NS NS NS NS NS NA NA 13.48 0.00 5054.47 02/04/09 0.0019J 0.00023J 0.066 0.0023J <0.005 0.001J 0.250 4.40 NA NA 13.74 0.00 5054.21 06/10/09 0.110 0.028 0.065 0.0072 0.00055J 0.00596J 0.670 2.00 NA NA 12.95 0.00 5055.00 09/30/09 0.040 0.018 0.062 0.0028 <0.001 0.00194 0.43 1.9 NA NA 13.49 0.00 5054.46 04/13/10 0.0067 0.0014 0.016 <0.002 <0.001 <0.001 <0.1 0.18 NA NA 14.55 0.00 5053.40 09/29/10 0.0095 0.002 0.042 0.00099J 0.00013J 0.00082J 0.23 0.95 NA NA 13.77 0.00 5054.18 03/06/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 09/17/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 12/22/14 NS NS NS NS NS NS NS NS NS NS NM NM NM MW-5 03/19/08 Dry 0.00 -- 88.90 05/15/08 Dry 0.00 -- 5065.45 11/07/08 Dry 0.00 -- 02/04/09 Dry 0.00 -- 06/10/09 Dry 0.00 -- 09/30/09 Dry 0.00 -- 04/13/10 Dry 0.00 -- 09/29/10 Dry 0.00 -- 03/06/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 09/17/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 12/22/14 NS NS NS NS NS NS NS NS NS NS NM NM NM Not enough water volume to collect a sample Dry Dry Dry Dry Not enough water volume to collect a sample Not enough water volume to collect a sample Dry Dry Dry Dry 1 of 7 TABLE 1 GROUNDWATER ANALYTICAL AND ELEVATION DATA SUMMARY PALMER TIRE 395 SOUTH 200 EAST ROOSEVELT, UTAH SAMPLE ETHYL-NAPH-ORGANIC LOCATION DATE BENZENE BENZENE MTBE THALENE TOLUENE XYLENES TPH-GRO TPH-DRO LEAD LEAD DTW FPT WTE TOC (ft.)MM/DD/YY (mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(feet)(feet)(feet) Initial Screening Levels 0.005 0.7 0.2 0.7 1.0 10 1.0 1.0 NE NE RBCA Tier 1 Screening 0.3 4.0 0.2 0.7 3.0 10 10 10 NE NE MW-6 03/19/08 <0.001 0.002 <0.001 0.003 B <0.001 0.032 B 0.660 F <2.0 F,X NA NA 10.99 0.00 77.51 88.50 05/15/08 0.002 <0.001 0.0730 <0.005 <0.001 <0.003 <0.05 F <2.0 F,X NA NA 11.54 0.00 76.96 5065.05 11/07/08 NS NS NS NS NS NS NS NS NA NA 11.45 0.00 5053.60 02/04/09 0.017 0.012 0.040 0.00047J <0.005 0.00193J 0.300 2.40 NA NA 11.59 0.00 5053.46 06/10/09 0.0014J 0.00016J 0.025 0.00041J <0.005 <0.005 0.034J 0.440 NA NA 11.78 0.00 5053.27 09/30/09 <0.001 <0.001 0.051 <0.001 <0.001 <0.001 <0.1 0.83 NA NA 11.78 0.00 5053.27 04/13/10 <0.001 <0.001 0.0018 <0.001 <0.001 <0.001 <0.1 0.2 NA NA 11.80 0.00 5053.25 09/29/10 <0.001 <0.001 0.0032 <0.001 <0.001 <0.001 <0.1 0.29 NA NA 11.87 0.00 5053.18 03/06/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 09/17/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 12/22/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 03/03/15 NS NS NS NS NS NS NS NS NS NS 19.83 0.00 5045.22 MW-7 03/19/08 <0.001 0.001 0.206 0.016 B <0.001 <0.003 1.30 F <2.0 F,UJ,X NA NA 15.45 0.00 75.58 91.03 05/15/08 0.023 <0.001 0.1670 <0.025 <0.001 <0.015 0.262 F,J <2.0 F,X NA NA 15.18 0.00 75.85 5067.57 11/07/08 NS NS NS NS NS NS NS NS NS NS 14.11 0.00 5053.46 02/04/09 0.00013J 0.00036J 0.082 <0.005 <0.005 0.00027J 0.170 1.70 NA NA 15.12 0.00 5052.45 06/10/09 0.00016J <0.005 0.039 <0.005 <0.005 0.00021J 0.058J 1.20 NA NA 14.29 0.00 5053.28 09/30/09 <0.001 <0.001 0.015 <0.001 <0.001 <0.001 <0.1 0.67 NA NA 15.71 0.00 5051.86 04/13/10 <0.001 <0.001 0.014 <0.001 <0.001 <0.001 <0.1 0.18 NA NA 15.93 0.00 5051.64 09/29/10 0.00043J <0.001 0.0043 <0.001 <0.001 <0.001 <0.1 0.29 NA NA 15.89 0.00 5051.68 03/06/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 09/17/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 12/22/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 03/03/15 NS NS NS NS NS NS NS NS NS NS 15.93 0.00 5051.64 MW-8 03/19/08 3.31 Jcal 1.120 0.141 0.375 0.448 1.900 16.90 F 5.20 F,J,X NA NA 12.75 0.00 65.92 78.67 05/15/08 3.610 1.010 0.1910 0.215 0.1650 0.9390 8.43 F <2.0 F,X NA NA 12.81 0.00 65.86 5052.64 11/07/08 NS NS NS NS NS NS NS NS NS NS 12.24 0.00 5040.40 02/04/09 3.700 1.000 0.240J 0.280 0.260 0.800 19 10 NA NA 13.90 0.00 5038.74 06/10/09 3.200 0.740 0.210 0.170 0.150 0.561 14 14 NA NA 13.10 0.00 5039.54 09/30/09 2.900 0.420 0.190 0.100 0.130 0.260 11 15 NA NA 12.62 0.00 5040.02 04/13/10 3.400 1.100 2.20 1.60 1.0000 5.230 15 16 NA NA 15.18 0.00 5037.46 09/29/10 2.900 0.710 0.190 0.150 0.240 0.430 14 3.5 NA NA 11.79 0.00 5040.85 03/06/14 NS NS NS NS NS NS NS NS NS NS 16.45 0.22 5036.36 09/17/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 12/22/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 04/26/16 NS NS NS NS NS NS NS NS NS NS 13.97 0.00 NM 08/08/16 NS NS NS NS NS NS NS NS NS NS 12.22 0.00 NM MW-9 03/19/08 0.089 0.163 <0.001 0.015 0.058 0.422 0.521 F,J 3.50 F,J,X NA NA 14.45 0.00 85.55 100.00 05/15/08 8.70 0.19 91.44 05/22/08 <0.005 P 0.013 P <0.001 P 0.167 P 0.024 P 0.47 P 6.29 F,P 31.30 F,P,X NA NA 4.45 0.02 95.57 5076.52 11/07/08 0.058 0.11 <0.005 0.065 0.054 0.266 4.90 16.00 NA NA 5.38 0.03 5071.16 01/27/09 NS NS NS NS NS NS NS NS NA NA 10.28 0.00 5066.24 02/04/09 0.044J 0.800 <0.050 0.310 0.200 1.430 5.40 240 NA NA 10.18 0.20 5066.49 06/10/09 <0.005 0.120 <0.005 0.180 0.014 0.348 15.00 200 0.00748 0.525 4.20 0.00 5072.32 09/30/09 <0.001 <0.001 <0.001 0.0026 <0.001 0.00288 1.7 95 NA NA 3.60 0.00 5072.92 09/30/09*<0.001 0.0011 <0.001 0.0038 <0.001 0.00401 0.73 98 NA NA ------ 04/13/10 0.025 0.620 <0.010 0.320 0.060 1.280 4.2 2.4 NA NA 7.73 0.01 5068.80 04/13/10*0.019 0.520 <0.010 0.220 0.048 1.060 3.0 2.2 NA NA ------ 09/29/10 <0.001 <0.001 <0.001 0.0016 <0.001 0.00288 0.56 0.61 NA NA 4.02 0.00 5072.50 9/29/2010*0.0004J 0.00055J <0.001 0.003 <0.001 0.0045 0.89 1.6 NA NA ------ 5076.99 03/06/14 NS NS NS NS NS NS NS NS NA NA 10.85 0.00 5066.14 09/17/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 12/22/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 03/03/15 NS NS NS NS NS NS NS NS NS NS 18.54 2.44 5060.28 MW-10 11/07/08 1.400 0.740 0.022 J 0.450 0.097 2.578 15.00 11.00 NA NA 3.18 0.00 5073.14 5076.32 02/04/09 1.700 1.000 0.039J 0.320 0.120 4.194 18.00 31.00 NA NA 4.90 0.02 5073.76 06/10/09 1.100 0.660 0.017J 0.400 0.072J 3.396 110 700 0.0125 <0.020†3.78 0.20 5072.69 09/30/09 1.300 0.700 0.013 0.400 0.079 3.074 15 21 NA NA 4.34 0.31 5072.21 04/13/10 1.600 1.000 0.023 0.430 0.083 3.688 19 29 NA NA 4.73 0.01 5071.60 Free Product Present, Well Not Sampled 2 of 7 TABLE 1 GROUNDWATER ANALYTICAL AND ELEVATION DATA SUMMARY PALMER TIRE 395 SOUTH 200 EAST ROOSEVELT, UTAH SAMPLE ETHYL-NAPH-ORGANIC LOCATION DATE BENZENE BENZENE MTBE THALENE TOLUENE XYLENES TPH-GRO TPH-DRO LEAD LEAD DTW FPT WTE TOC (ft.)MM/DD/YY (mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(feet)(feet)(feet) Initial Screening Levels 0.005 0.7 0.2 0.7 1.0 10 1.0 1.0 NE NE RBCA Tier 1 Screening 0.3 4.0 0.2 0.7 3.0 10 10 10 NE NE MW-10 09/29/10 1.100 0.750 0.017 0.490 0.054 2.660 19 22 NA NA 4.78 0.02 5071.56 Cont.03/06/14 NS NS NS NS NS NS NS NS NS NS 15.74 8.94 5067.29 09/17/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 12/22/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 03/03/15 NS NS NS NS NS NS NS NS NS NS 14.14 8.01 5068.19 05/18/22 NS NS NS NS NS NS NS NS NS NS 21.66 14.21 5065.32 09/29/22 NS NS NS NS NS NS NS NS NS NS 8.99 2.08 5068.89 05/10/23 NS NS NS NS NS NS NS NS NS NS 6.27 1.56 5071.22 08/17/23 NS NS NS NS NS NS NS NS NS NS 5.34 0.68 5071.49 11/27/23 NS NS NS NS NS NS NS NS NS NS 5.40 0.32 5071.16 MW-11 11/07/08 0.074 0.061 <0.005 0.085 0.011 0.078 0.660 1.900 NA NA 3.58 0.00 5075.06 5078.64 02/04/09 0.180 0.070 <0.005 0.150 0.017 0.078 1.30 5.00 NA NA 4.10 0.00 5074.54 06/10/09 0.025 0.012 <0.005 0.031 <0.005 0.0101 0.130 3.00 NA NA 3.31 0.00 5075.33 09/30/09 0.0054 0.0012 0.0012 0.010 <0.001 0.00498 0.43 1.6 NA NA 3.84 0.00 5074.80 04/13/10 0.015 0.0057 <0.001 0.011 <0.001 0.0035 0.28 1.2 NA NA 3.22 0.00 5075.42 09/29/10 0.480 0.130 <0.005 0.0064 0.0065 0.0045J 2.7 3.4 NA NA 4.70 0.00 5073.94 03/06/14 0.105 0.010 <0.005 0.0490 <0.005 0.017 1.01 F 1.5 X,M,F Jlo NA NA 12.36 0.00 5066.28 9/17/2014***0.163 0.012 <0.005 0.020 0.009 <0.015 0.559 F 4.6 X,M,F,Jlo NA NA 10.14 0.00 5067.74 12/22/14 0.345 0.033 <0.001 UJ 0.064 0.017 0.035 1.35 F 3.3 X,M,F,Jlo NA NA 10.32 0.00 5068.32 03/03/15 0.119 0.007 <0.001 0.041 0.005 0.030 1.96 F 5.4 X,M,F NA NA 10.08 0.00 5068.56 06/11/15 0.214 0.039 <0.001 UJ 0.059 0.015 0.032 1.12 F 3.6 X,M,F,Jlo NA NA 12.39 0.00 5066.25 04/26/16 0.050 0.011 <0.005 0.045 <0.005 0.024 1.38 17.8 NA NA 13.03 0.00 5065.61 08/08/16 0.062 <0.005 <0.005 <0.005 <0.005 <0.005 0.563 9.7 NA NA 10.03 0.00 5068.61 05/09/17 0.115 0.0288 <0.0100 <0.0500 <0.0100 <0.0300 0.904 16.7 NA NA 10.57 0.00 5068.07 11/13/19 NS NS NS NS NS NS NS NS NS NS 7.29 0.00 5069.99 09/29/22 NS NS NS NS NS NS NS NS NS NS 8.09 0.00 5069.19 05/10/23 0.0925 0.00687 <0.00100 0.00413 J 0.000320 J 0.00122 J 0.587 3.410 NS NS 3.98 0.00 5073.30 08/17/23 0.112 0.0132 <0.00100 0.00282 J 0.000550 J 0.00135 J 0.443 6.180 NS NS 6.53 0.00 5070.75 11/27/23 0.129 0.0175 <0.00100 0.00138 J <0.00100 0.000444 J 0.424 6.130 NS NS 12.00 0.00 5065.28 MW-12 11/07/08 2.800 1.200 <0.005 0.460 1.300 3.100 26 5.20 NA NA 4.57 0.00 5073.31 5077.88 02/04/09 5.800 0.780 <0.100 0.190 0.750 0.840 7.30 NA**NA NA 6.00 0.00 5071.88 06/10/09 6.200 2.200 <0.500 0.760 3.700 6.700 41 7.10 <0.005 <0.020†5.54 0.00 5072.34 09/30/09 5.200 1.200 <0.050 0.380 2.300 2.960 25 11 NA NA 6.22 0.00 5071.66 04/13/10 5.100 1.300 <0.050 0.270 1.700 2.690 10 8.4 NA NA 6.65 0.00 5071.23 09/29/10 4.100 0.640 <0.1 0.300 0.920 1.210 18 E 3.4 NA NA 8.13 0.00 5069.75 03/06/14 3.41 0.388 <0.005 0.371 0.021 0.096 4.55 F 2.6 X,M,F NA NA 11.82 0.00 5066.06 03/06/14*3.33 0.372 <0.005 0.377 0.020 0.094 4.83 F 2.6 X,M,F NA NA ------ 9/17/2014***4.30 0.584 <0.01 0.244 0.077 0.480 9.29 F <1 X,M,F,UJ NA NA 10.65 0.00 5067.23 12/22/14 3.39 0.413 <0.001 UJ 0.313 0.019 0.102 5.81 F 1.8 X,M,F NA NA 10.86 0.00 5067.02 03/03/15 3.01 0.470 <0.001 0.239 0.026 0.130 7.05 F 3.9 X,M,F NA NA 11.10 0.00 5066.78 06/11/15 3.08 0.398 <0.005 UJ 0.277 0.033 0.223 4.90 F 1.4 X,M,F NA NA 9.61 0.00 5068.27 04/26/16 2.26 0.313 <0.005 0.242 0.024 0.092 3.67 9.60 NA NA 10.21 0.00 5067.67 08/08/16 4.22 0.534 <0.005 0.262 0.041 0.263 6.61 8.20 NA NA 10.28 0.00 5067.60 MW-13 11/07/08 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.50 0.960 NA NA 19.10 0.00 5057.22 5076.32 11/07/08 *<0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.50 0.740 NA NA ------ 02/04/09 NM NM NM 06/10/09 NM NM NM 09/30/09 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.1 0.510 NA NA 8.78 0.00 5067.54 04/13/10 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.1 0.55 NA NA 19.44 0.00 5056.88 09/29/10 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.1 0.64 NA NA 19.42 0.00 5056.90 03/06/14 <0.001 <0.001 <0.001 <0.002 <0.001 <0.003 <0.05 F 1.1 X,M,F NA NA 21.44 0.00 5054.88 09/17/14 <0.001 <0.001 <0.001 <0.002 <0.001 <0.003 <0.05 F <1 X,M,F,UJ NA NA 20.44 0.00 5055.88 12/22/14 <0.001 <0.001 <0.001 UJ <0.002 UJ <0.001 <0.003 <0.05 F <1 X,M,F NA NA 21.32 0.00 5055.00 03/03/15 <0.001 <0.001 <0.001 <0.002 <0.001 <0.003 <0.05 F <1 X,M,F NA NA 21.70 0.00 5054.62 06/11/15 <0.001 <0.001 <0.001 UJ <0.002 <0.001 <0.003 <0.05 F <1 X,M,F NA NA 20.98 0.00 5055.34 04/26/16 <0.002 <0.005 <0.005 <0.010 <0.005 <0.010 0.100 1.0 NA NA 21.13 0.00 5055.19 08/08/16 <0.002 <0.005 <0.005 <0.005 <0.005 <0.005 <0.050 <1.0 NA NA 21.20 0.00 5055.12 05/09/17 NM NM NMWell could not be located Well was destroyed during over-excavation Could not locate, buried under snow Could not locate, buried under gravel 3 of 7 TABLE 1 GROUNDWATER ANALYTICAL AND ELEVATION DATA SUMMARY PALMER TIRE 395 SOUTH 200 EAST ROOSEVELT, UTAH SAMPLE ETHYL-NAPH-ORGANIC LOCATION DATE BENZENE BENZENE MTBE THALENE TOLUENE XYLENES TPH-GRO TPH-DRO LEAD LEAD DTW FPT WTE TOC (ft.)MM/DD/YY (mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(feet)(feet)(feet) Initial Screening Levels 0.005 0.7 0.2 0.7 1.0 10 1.0 1.0 NE NE RBCA Tier 1 Screening 0.3 4.0 0.2 0.7 3.0 10 10 10 NE NE MW-14 11/07/08 Dry ---- 5048.74 01/27/09 NS NS NS NS NS NS NS NS NA NA 13.40 0.00 5035.34 02/04/09 0.059 0.0089J 0.050 0.056 0.024J 0.197 31 10 NA NA 13.46 0.00 5035.28 06/10/09 0.190 0.140 0.180 0.280 0.023J 0.770 8.30 17 NA NA 12.81 0.00 5035.93 09/30/09 0.230 0.170 0.160 0.170 0.020 0.518 11 95 NA NA 12.80 0.00 5035.94 04/13/10 0.099 0.100 0.140 0.190 0.011 0.503 6.2 5.1 NA NA 14.98 0.00 5033.76 09/29/10 0.140 0.088 0.130 0.120 0.010 0.318 5.8 F 4 X,M,F NA NA 11.82 0.00 5036.92 03/06/14 NS NS NS NS NS NS NS NS NS NS 14.30 0.00 5034.44 09/17/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 12/22/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 03/03/15 NS NS NS NS NS NS NS NS NS NS 14.65 0.00 5034.09 04/26/16 NS NS NS NS NS NS NS NS NS NS 14.48 0.00 5034.26 08/08/16 NS NS NS NS NS NS NS NS NS NS 12.77 0.00 5035.97 05/09/17 NS NS NS NS NS NS NS NS NS NS 10.27 0.00 5038.47 05/18/22 0.00713 J 0.0523 0.0210 0.0312 J <0.0100 0.0334 31.500 53.000 NS NS 14.38 0.00 5034.36 09/29/22 0.00985 J 0.0473 0.0630 0.0259 J <0.0100 0.0251 J 8.570 J 9.180 NS NS 12.71 0.00 5036.03 05/10/23 0.00948 0.000682 J 0.00486 0.0328 0.00183 0.0770 2.880 9.670 NS NS 8.43 0.00 5040.31 08/17/23 0.0115 0.000150 J 0.0125 0.0430 0.00204 0.0740 4.040 12.400 NS NS 11.17 0.00 5037.57 11/27/23 0.00946 0.000200 J 0.0301 0.0336 0.00125 0.0525 9.870 17.200 NS NS 12.10 0.00 5036.64 MW-15 11/07/08 Dry ---- 5047.17 01/27/09 NS NS NS NS NS NS NS NS NS NS 16.32 0.00 5030.85 02/04/09 0.140 0.073 0.180 0.180 0.027 0.630 8.10 220 NA NA 16.48 0.00 5030.69 06/10/09 0.930 0.068J 0.074J 0.017J 1.000 0.440 38 130 NA NA 15.35 0.00 5031.82 09/30/09 1.000 0.100 0.067 0.051 1.400 0.590 50 170 NA NA 14.95 0.00 5032.22 04/13/10 17.50 0.00 5029.67 09/29/10 0.710 0.099 0.067 0.083 0.830 0.830 38 180 NA NA 15.98 0.00 5031.19 03/06/14 NS NS NS NS NS NS NS NS NS NS 17.38 0.00 5029.79 09/17/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 12/22/14 NS NS NS NS NS NS NS NS NS NS NM NM NM 03/03/15 NS NS NS NS NS NS NS NS NS NS 17.35 0.00 5029.82 04/26/16 NS NS NS NS NS NS NS NS NS NS 17.04 0.00 5030.13 08/08/16 NS NS NS NS NS NS NS NS NS NS 16.93 0.00 5030.24 05/09/17 NS NS NS NS NS NS NS NS NS NS 14.39 0.00 5032.78 05/18/22 17.36 0.00 5029.81 09/29/22 DRY 0.00 DRY 05/10/23 DRY 0.00 DRY 08/17/23 0.00477 <0.00100 0.00172 0.00222 J 0.000311 J 0.00119 J <1.000 6.720 NA NA 15.14 0.00 5032.03 11/27/23 0.0143 <0.00100 0.00504 0.00341 J <0.00100 0.000576 J <1.000 11.400 NA NA 16.65 0.00 5030.52 MW-16 03/06/14 0.758 0.222 <0.001 0.168 0.019 0.070 1.93 F 3.5 X,M,F NA NA 8.33 0.00 5068.75 5077.08 09/17/14 1.16 0.248 <0.001 0.515 0.020 0.046 2.46 F 1.0 X,M,F,Jlo NA NA 7.96 0.00 5069.12 12/22/14 0.972 0.246 <0.001 UJ 0.413 0.019 0.038 2.37 F 3.6 X,M,F NA NA 9.10 0.00 5067.98 03/03/15 0.894 0.295 <0.001 0.428 0.023 0.058 3.24 F 9.0 X,M,F NA NA 10.23 0.00 5066.85 06/11/15 0.882 0.293 <0.001 UJ 0.551 0.022 0.057 1.91 F 4.3 X,M,F NA NA 8.37 0.00 5068.71 04/26/16 1.03 0.257 <0.005 0.522 0.030 0.072 2.81 14.4 NA NA 9.10 0.00 5067.98 08/08/16 1.15 0.282 <0.005 0.428 0.025 0.063 2.68 17.8 NA NA 8.50 0.00 5068.58 MW-17 03/06/14 0.830 0.179 <0.01 0.177 <0.01 0.051 2.59 F 1.7 X,M,F NA NA 23.16 0.00 5054.12 5077.28 09/17/14 1.09 0.215 <0.001 0.069 0.001 0.027 2.81 F <1 X,M,F NA NA 24.25 0.00 5052.83 12/22/14 1.07 0.269 <0.001 UJ 0.065 <0.001 0.028 3.29 F <1 X,M,F NA NA 24.42 0.00 5052.86 03/03/15 0.669 0.176 <0.001 0.062 <0.001 0.019 3.83 F <1 X,M,F NA NA 23.29 0.00 5053.99 06/11/15 0.658 0.250 <0.005 0.106 <0.005 <0.015 2.19 F <1 X,M,F NA NA 24.13 0.00 5053.15 04/26/16 0.992 0.154 <0.005 0.431 <0.005 0.023 6.31 10.6 NA NA 24.32 TRACE 5052.96 08/08/16 0.624 0.364 <0.005 0.470 0.243 0.440 6.02 14.4 NA NA 22.37 0.22 5055.08 05/09/17 0.375 <0.0100 <0.0100 0.151 0.0773 0.188 4.11 48.8 NA NA 20.81 SHEEN 5056.47 07/24/18 NS NS 23.08 0.20 5054.35 10/30/18 NS NS 24.58 0.18 5052.84 01/09/19 NS NS 24.37 0.17 5053.04 04/16/19 0.604 0.385 <0.005 0.672 0.149 0.335 31.7 101 NA NA 21.50 0.00 5055.78 11/13/19 NS NS 23.25 0.12 5054.12 02/19/20 NS NS 24.27 0.23 5053.18 Well was dry Well was destroyed during over-excavation Not enough water volume to collect a sample Dry Free Product Present, Well Not Sampled Dry Free Product Present, Well Not Sampled Free Product Present, Well Not Sampled Free Product Present, Well Not Sampled Not enough water volume to collect a sample Well was dry Free Product Present, Well Not Sampled 4 of 7 TABLE 1 GROUNDWATER ANALYTICAL AND ELEVATION DATA SUMMARY PALMER TIRE 395 SOUTH 200 EAST ROOSEVELT, UTAH SAMPLE ETHYL-NAPH-ORGANIC LOCATION DATE BENZENE BENZENE MTBE THALENE TOLUENE XYLENES TPH-GRO TPH-DRO LEAD LEAD DTW FPT WTE TOC (ft.)MM/DD/YY (mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(feet)(feet)(feet) Initial Screening Levels 0.005 0.7 0.2 0.7 1.0 10 1.0 1.0 NE NE RBCA Tier 1 Screening 0.3 4.0 0.2 0.7 3.0 10 10 10 NE NE MW-17 05/11/20 0.836 0.365 <0.0500 0.297 0.0916 0.256 9.370 B 40.000 NA NA 21.41 0.00 5055.87 Cont.08/11/20 NS NS 22.15 0.57 5055.56 09/27/21 NS NS 24.29 0.66 5053.49 01/12/22 NS NS 24.28 0.57 5053.43 05/18/22 NS NS 23.74 0.55 5053.95 09/29/22 NS NS 23.51 0.56 5054.19 05/10/23 NS NS 24.02 0.50 5053.64 08/17/23 NS NS 21.62 0.50 5056.04 11/27/23 NS NS 24.36 1.58 5054.11 MW-18 03/06/14 DRY NM NM 5076.65 04/06/14 0.002 <0.001 <0.001 <0.002 <0.001 <0.003 1.1 F 0.135 F,X,M NA NA 23.00 0.00 5053.65 09/17/14 <0.001 <0.001 <0.001 <0.002 <0.001 <0.003 <0.05 F <1 X,M,F,UJ NA NA 19.67 0.00 5056.98 12/22/14 <0.001 <0.001 <0.001 UJ 0.002 Jlo <0.001 <0.003 <0.05 F <1 X,M,F NA NA 21.38 0.00 5055.27 03/03/15 <0.001 <0.001 <0.001 <0.002 <0.001 <0.003 0.070 F <1 X,M,F NA NA 21.83 0.00 5054.82 06/11/15 <0.001 <0.001 <0.001 <0.002 <0.001 <0.003 <0.05 F <1 X,M,F NA NA 9.10 0.00 5067.55 04/26/16 <0.002 <0.005 <0.005 <0.010 <0.005 <0.010 0.099 7.9 NA NA 20.37 0.00 5056.28 05/09/17 <0.0010 <0.0010 <0.0010 <0.0050 <0.0010 <0.0030 <0.100 12.50 NA NA 7.60 0.00 5069.05 07/24/18 0.020 <0.012 <0.005 <0.012 <0.012 <0.012 <0.125 4.9 NA NA 22.05 0.00 5054.60 10/30/18 0.038 <0.012 <0.005 <0.012 <0.012 <0.012 0.225 7.1 NA NA 23.02 0.00 5053.63 01/09/19 0.076 0.025 <0.005 <0.012 <0.012 0.014 0.650 7.4 NA NA 22.35 0.00 5054.30 04/16/19 0.007 <0.012 <0.005 <0.012 <0.012 <0.012 <0.125 5.1 NA NA 20.31 0.00 5056.34 11/13/19 0.00421 <0.001 0.000722 J <0.005 <0.001 <0.003 0.233 B 8.130 NA NA 22.14 0.00 5054.51 02/19/20 NS NS 22.29 0.20 5054.51 05/11/20 NS NS 21.11 0.52 5055.93 08/11/20 NS NS 21.15 0.38 5055.79 09/27/21 NS NS 21.81 0.15 5054.95 01/12/22 NS NS 21.79 0.02 5054.88 05/18/22 NS NS 21.12 0.14 5055.64 09/29/22 0.0341 0.198 <0.00500 0.301 0.0222 0.346 7.630 J 13.400 NA NA 18.81 0.00 5057.84 05/10/23 NS NS 5.67 0.08 5071.04 08/17/23 NS NS 9.46 0.02 5067.21 11/27/23 <0.00100 0.00109 <0.00100 0.0194 <0.00100 0.00712 1.630 5.670 NA NA 6.97 0.00 5069.68 MW-19 03/06/14 <0.001 <0.001 0.027 <0.002 <0.001 <0.003 0.063 F <1 X,M,F NA NA 20.93 0.00 5054.59 5075.52 09/17/14 0.003 <0.001 0.003 <0.002 <0.001 <0.003 <0.05 F <1 X,M,F,UJ NA NA 19.94 0.00 5055.58 12/22/14 <0.001 <0.001 <0.001 UJ <0.002 UJ <0.001 UJ <0.003 <0.05 F <1 X,M,F NA NA 20.83 0.00 5054.69 03/03/15 <0.001 <0.001 0.009 <0.002 <0.001 <0.003 <0.05 F <1 X,M,F NA NA 21.29 0.00 5054.23 06/11/15 <0.001 <0.001 0.003 <0.002 <0.001 <0.003 <0.05 F <1 X,M,F NA 0.003 20.48 0.00 5055.04 04/26/16 <0.002 <0.005 0.013 0.014 <0.005 <0.010 0.120 <1.0 NA NA 20.63 0.00 5054.89 08/08/16 <0.002 <0.005 0.007 <0.005 <0.005 <0.005 <0.050 <1.0 NA NA 20.69 0.00 5054.83 05/09/17 <0.0010 <0.0010 0.0171 <0.0050 <0.0010 <0.0030 <0.100 1.00 NA NA 19.92 0.00 5055.60 07/24/18 <0.005 <0.012 0.019 <0.012 <0.012 <0.012 <0.125 <1.0 NA NA 20.20 0.00 5055.32 10/30/18 <0.005 <0.012 0.016 <0.012 <0.012 <0.012 <0.125 1.0 NA NA 20.44 0.00 5055.08 01/09/19 <0.005 <0.012 0.011 <0.012 <0.012 <0.012 <0.125 <1.0 NA NA 21.53 0.00 5053.99 04/16/19 <0.005 <0.012 0.025 <0.012 <0.012 <0.012 <0.125 <1.0 NA NA 20.18 0.00 5055.34 11/13/19 0.00141 <0.001 0.0127 <0.005 <0.001 <0.003 0.351 1.110 NA NA 21.26 0.00 5054.26 02/19/20 0.00112 <0.00100 0.0215 0.00178 J <0.00100 <0.00300 0.116 1.190 J4 NA NA 21.81 0.00 5053.71 05/11/20 0.000876 J 0.000302 J 0.0281 <0.00500 <0.00100 <0.00300 0.339 0.979 NA NA 20.64 0.00 5054.88 08/11/20 0.00406 0.000598 J 0.0192 <0.00500 <0.00100 <0.00300 0.361 B 0.985 NA NA 20.79 0.00 5054.73 09/27/21 0.0212 0.0257 0.0315 0.0894 0.00207 0.00996 1.490 3.470 NA NA 20.31 0.00 5055.21 01/12/22 0.0356 0.0217 0.0207 0.0691 0.00126 0.00674 2.160 3.190 NA NA 21.32 0.00 5054.20 05/18/22 0.00803 0.00524 0.0267 0.0220 0.000621 J 0.00333 1.470 3.470 NA NA 20.69 0.00 5054.83 09/29/22 0.00618 0.00388 0.0903 0.0212 0.000349 J 0.00314 0.791 2.280 NA NA 20.11 0.00 5055.41 05/10/23 0.00114 <0.00100 0.00174 0.0142 <0.00100 0.00128 J 0.767 J 2.020 NA NA 19.35 0.00 5056.17 08/17/23 0.00607 0.000988 J 0.00489 0.0140 <0.00100 0.00104 J <1.000 2.370 NA NA 19.68 0.00 5055.84 11/27/23 0.00194 0.000459 J 0.00336 0.0113 <0.00100 0.000673 J 0.671 1.740 NA NA 19.98 0.00 5055.54 MW-20 03/06/14 <0.001 <0.001 <0.001 <0.002 <0.001 <0.003 <0.05 F <1 X,M,F NA NA 9.28 0.00 5069.67 5078.95 09/17/14 <0.001 <0.001 <0.001 <0.002 <0.001 <0.003 <0.05 F <1 X,M,F,UJ NA NA 7.43 0.00 5071.52 12/22/14 <0.001 <0.001 <0.001 UJ <0.002 UJ <0.001 <0.003 <0.05 F <1 X,M,F NA NA 8.07 0.00 5070.88 03/03/15 <0.001 <0.001 <0.001 <0.002 <0.001 <0.003 <0.05 F <1 X,M,F NA NA 7.83 0.00 5071.12 06/11/15 <0.001 <0.001 <0.001 <0.002 <0.001 <0.003 <0.05 F <1 X,M,F NA NA 7.40 0.00 5071.55 Free Product Present, Well Not Sampled Free Product Present, Well Not Sampled Free Product Present, Well Not Sampled Free Product Present, Well Not Sampled Free Product Present, Well Not Sampled Free Product Present, Well Not Sampled Free Product Present, Well Not Sampled Free Product Present, Well Not Sampled Free Product Present, Well Not Sampled Free Product Present, Well Not Sampled Free Product Present, Well Not Sampled Not enough water volume to collect a sample Free Product Present, Well Not Sampled Free Product Present, Well Not Sampled Free Product Present, Well Not Sampled Free Product Present, Well Not Sampled Free Product Present, Well Not Sampled 5 of 7 TABLE 1 GROUNDWATER ANALYTICAL AND ELEVATION DATA SUMMARY PALMER TIRE 395 SOUTH 200 EAST ROOSEVELT, UTAH SAMPLE ETHYL-NAPH-ORGANIC LOCATION DATE BENZENE BENZENE MTBE THALENE TOLUENE XYLENES TPH-GRO TPH-DRO LEAD LEAD DTW FPT WTE TOC (ft.)MM/DD/YY (mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(feet)(feet)(feet) Initial Screening Levels 0.005 0.7 0.2 0.7 1.0 10 1.0 1.0 NE NE RBCA Tier 1 Screening 0.3 4.0 0.2 0.7 3.0 10 10 10 NE NE MW-20 04/26/16 <0.002 <0.005 <0.005 0.012 <0.005 <0.010 0.181 2.2 NA NA 7.70 0.00 5071.25 Cont.08/08/16 <0.002 <0.005 <0.005 <0.005 <0.005 <0.005 0.066 1.4 NA NA 7.63 0.00 5071.32 05/09/17 <0.0010 <0.0010 <0.0010 <0.0050 <0.0010 <0.0030 <0.100 2.63 NA NA 7.07 0.00 5071.88 07/24/18 <0.005 <0.012 <0.005 <0.012 <0.012 <0.012 <0.125 <1.0 NA NA 8.69 0.00 5070.26 10/30/18 <0.005 <0.012 <0.005 <0.012 <0.012 <0.012 <0.125 1.7 NA NA 9.13 0.00 5069.82 01/09/19 <0.005 <0.012 <0.005 <0.012 <0.012 <0.012 <0.125 1.4 NA NA 9.80 0.00 5069.15 04/16/19 <0.005 <0.012 <0.005 <0.012 <0.012 <0.012 <0.125 1.6 NA NA 7.79 0.00 5071.16 11/13/19 0.00035 J <0.001 <0.001 <0.005 <0.001 <0.003 0.105 B 1.810 NA NA 8.53 0.00 5070.42 02/19/20 <0.00100 <0.00100 <0.00100 <0.00500 <0.00100 <0.00300 0.0888 BJ 1.890 J4 NA NA 8.97 0.00 5069.98 05/11/20 0.00260 0.000490 J <0.00100 0.00203 J <0.00100 0.000373 J 0.143 B 1.510 NA NA 7.78 0.00 5071.17 08/11/20 <0.00100 <0.00100 <0.00100 <0.00500 <0.00100 <0.00300 0.0451 J 1.520 NA NA 8.19 0.00 5070.76 09/27/21 <0.00100 <0.00100 <0.00100 0.00178 J <0.00100 <0.00300 0.0366 J 1.400 NA NA 9.18 0.00 5069.77 01/12/22 <0.00100 <0.00100 <0.00100 <0.00500 <0.00100 <0.00300 0.0691 J 1.000 NA NA 9.69 0.00 5069.26 05/18/22 <0.00100 <0.00100 <0.00100 <0.00500 <0.00100 <0.00300 0.0461 J 0.671 NA NA 8.52 0.00 5070.43 MW-21 05/09/17 0.303 0.0462 <0.0050 0.0582 0.00578 0.219 1.16 9.42 NA NA 22.95 0.00 5055.20 5078.15 07/24/18 5.23 0.630 <0.005 0.336 <0.012 0.041 7.25 7.6 NA NA 15.70 0.00 5062.45 10/30/18 5.16 0.478 <0.005 0.345 <0.012 0.033 7.00 9.9 NA NA 16.31 0.00 5061.84 01/09/19 2.02 0.311 <0.005 0.188 <0.012 0.027 3.57 10.7 NA NA 18.98 0.00 5059.17 04/16/19 0.228 <0.012 <0.005 <0.012 <0.012 <0.012 0.228 4.9 NA NA 15.27 0.00 5062.88 11/13/19 2.2600 0.00127 <0.001 0.104 J 0.00127 0.0142 5.860 12.300 NA NA 16.32 0.00 5061.83 02/19/20 3.190 0.138 <0.00100 0.0363 0.00151 0.0171 5.170 11.500 J4 NA NA 17.07 0.00 5061.08 05/11/20 1.910 0.135 <0.00100 0.0333 0.00178 0.0250 4.110 7.640 NA NA 16.04 0.00 5062.11 08/11/20 2.140 0.104 <0.0500 <0.250 <0.0500 0.0167 J 6.230 7.500 NA NA 15.91 0.00 5062.24 09/27/21 2.460 0.164 <0.0250 0.291 <0.0250 0.0376 J 7.250 13.900 NA NA 14.92 0.00 5063.23 01/12/22 3.260 0.213 <0.0250 0.157 <0.0250 0.0165 J 7.540 11.700 NA NA 16.30 0.00 5061.85 05/18/22 2.590 0.141 <0.0250 0.0587 J <0.0250 0.0231 J 8.400 8.150 NA NA 15.36 0.00 5062.79 09/29/22 2.150 0.198 <0.0500 0.178 J <0.0500 0.0285 J 5.020 12.900 NA NA 14.66 0.00 5063.49 05/10/23 1.710 0.169 <0.00100 0.102 J 0.00256 0.0124 3.410 12.400 NA NA 13.59 0.00 5064.56 08/17/23 1.110 0.0854 <0.0250 0.164 <0.0250 <0.0750 3.220 9.220 NA NA 13.19 0.00 5064.96 11/27/23 1.460 0.157 <0.00100 0.0449 0.00281 0.0136 3.330 9.140 NA NA 14.92 0.00 5063.23 MW-22 05/09/17 0.0325 0.0162 <0.0010 0.0140 <0.0010 <0.0030 0.250 10.8 NA NA 12.90 0.00 5065.15 5078.05 07/24/18 0.012 <0.012 <0.005 <0.012 <0.012 <0.012 <0.125 3.7 NA NA 11.41 0.00 5066.64 10/30/18 0.012 <0.012 <0.005 <0.012 <0.012 <0.012 <0.125 4.4 NA NA 12.62 0.00 5065.43 01/09/19 <0.005 <0.012 <0.005 <0.012 <0.012 <0.012 <0.125 3.6 NA NA 14.99 0.00 5063.06 04/16/19 <0.005 <0.012 <0.005 <0.012 <0.012 <0.012 <0.125 1.6 NA NA 8.92 0.00 5069.13 11/13/19 0.00377 <0.001 <0.001 <0.005 <0.001 <0.003 0.107 B 4.670 NA NA 8.00 0.00 5070.05 02/19/20 0.00325 <0.00100 <0.00100 <0.00500 <0.00100 <0.00300 0.0904 J 4.430 J4 NA NA 8.35 0.00 5069.70 05/11/20 0.00287 0.000622 J <0.00100 <0.00500 <0.00100 0.00171 J 0.0997 BJ 4.680 NA NA 6.46 0.00 5071.59 08/11/20 0.00274 <0.00100 <0.00100 <0.00500 <0.00100 <0.00300 0.0776 J 2.670 NA NA 6.38 0.00 5071.67 09/27/21 0.00273 <0.00100 <0.00100 <0.00500 <0.00100 <0.00300 0.0832 J 4.020 NA NA 6.80 0.00 5071.25 01/12/22 0.00245 <0.00100 <0.00100 <0.00500 <0.00100 <0.00300 0.127 4.750 NA NA 7.57 0.00 5070.48 05/18/22 0.00193 <0.00100 <0.00100 <0.00500 <0.00100 <0.00300 0.0812 J 4.060 NA NA 6.44 0.00 5071.61 09/29/22 0.00299 0.000181 J 0.00425 0.00383 B,J <0.00100 0.000220 J 0.0936 J 3.850 NA NA 6.78 0.00 5071.27 05/10/23 0.00188 <0.00100 <0.00100 0.00281 J <0.00100 <0.00100 <1.000 4.010 NA NA 4.82 0.00 5073.23 08/17/23 0.00133 <0.00100 <0.00100 0.00182 J <0.00100 <0.00300 0.457 B,J 3.680 B,J NA NA 5.82 0.00 5072.23 11/27/23 0.00217 <0.00100 <0.00100 <0.00500 <0.00100 <0.00300 0.0673 J 2.810 NA NA 6.44 0.00 5071.61 SEEP 11/20/07 2.085 0.4350 0.1520 0.0112 0.0340 0.0571 NA NA NA NA ------ 12/04/07 2.350 0.315 J,P 0.128 P 0.013 J,P 0.025 P 0.045 J,P 6.85 F,P <2.0 F,X NA NA ------ 05/22/08 1.060 0.132 0.0790 0.216 0.023 0.133 5.05 F,J <2.0 F,X NA NA ------ 06/11/09 0.0038J 0.0054 0.0099 0.00028J 0.0012J 0.00197J 0.160 1.30 <0.005 <0.020†------ 09/30/09 ------ 04/13/10 <0.001 <0.001 0.0064 <0.001 <0.001 <0.001 <0.1 0.44 NA NA ------ 09/29/10 0.0004J <0.001 <0.001 0.00035J 0.00051J 0.0008J 0.016J 0.37 NA NA ------ 06/11/15 0.015 0.008 0.004 Jlo 0.005 0.003 0.018 0.371 F <1 X,M,F NA NA ------ PZ3 03/19/08 11.48 0.00 66.19 77.67 05/15/08 Dry ---- 5051.67 11/07/08 Dry ---- 02/04/09 Dry ---- 06/10/09 11.25 0.00 5040.42 04/13/10 Dry ---- Not enough water volume to collect a sample Dry Not enough water volume to collect a sample Dry Well was destroyed Dry Dry Dry 6 of 7 TABLE 1 GROUNDWATER ANALYTICAL AND ELEVATION DATA SUMMARY PALMER TIRE 395 SOUTH 200 EAST ROOSEVELT, UTAH SAMPLE ETHYL-NAPH-ORGANIC LOCATION DATE BENZENE BENZENE MTBE THALENE TOLUENE XYLENES TPH-GRO TPH-DRO LEAD LEAD DTW FPT WTE TOC (ft.)MM/DD/YY (mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(feet)(feet)(feet) Initial Screening Levels 0.005 0.7 0.2 0.7 1.0 10 1.0 1.0 NE NE RBCA Tier 1 Screening 0.3 4.0 0.2 0.7 3.0 10 10 10 NE NE PZ3 09/29/10 Dry ---- Cont. PZ-4 03/19/08 Dry ---- 76.91 05/15/08 Dry ---- 5050.91 11/07/08 12.13 0.00 5038.78 02/04/09 12.26 0.00 5038.65 06/10/09 11.25 0.00 5039.66 04/13/10 Dry ---- 09/29/10 Dry ---- Notes: TPH -GRO = Total Petroleum Hydrocarbons as Gasoline WTE = Water Table Elevation mg/L = Milligrams per Liter TOC = Top of Casing, Monitoring Well Surveyed Elevation RBCA = Risk Based Corrective Action DTW = Depth to Water < = Not detected above the laboratory reporting limit B = Analyte detected in Method Blank † = Method Detection Limit UJ = Analyte not detected. Surrogate recovery below limits.F = No Dual Column Confirmation NA = Not Analyzed J = Estimated value between Method Detection Limit and Practical Quantitation Limit X = Hexane used for Extractions NE = Not Established Jcal = Estimated value. Result above linear calibration range of instrument * = Duplicate Sample TPH -DRO = Total Petroleum Hydrocarbons as Diesel ** = Jar was broken during shipment Bold numbers indicate an exceedence of the Tier I Screening Level ***= Samples were inadvertently switched in the field P = Not Preserved in the field, HCL added at the time of receipt of samples at the laboratory FPT = Free Product Thickness Jlo = Estimated value. Results may be biased low. Spike or surrogate recovery below QC limits.E = Concentration exceeds calibration range of instrument J4 = Associated batch QC was outside the established quality control range for accuracy. Dry Dry Dry Not enough water volume to collect a sample Not enough water volume to collect a sample Not enough water volume to collect a sample Dry Dry 7 of 7 APPENDIX A LABORATORY ANALYTICAL REPORTS ANALYTICAL REPORT December 07, 2023 One Atlas Sample Delivery Group:L1682031 Samples Received:11/29/2023 Project Number: Description:Palmer Tire Report To:Jim Coletta 1775 South 4130 West, Ste A Salt Lake City, UT 84104 Entire Report Reviewed By: December 07, 2023 [Preliminary Report] Daphne Richards 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: One Atlas L1682031 12/07/23 14:22 1 of 22 December 07, 2023 Daphne Richards Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 1 of 22 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 MW-11 L1682031-01 6 MW-14 L1682031-02 7 MW-15 L1682031-03 8 MW-18 L1682031-04 9 MW-19 L1682031-05 10 MW-21 L1682031-06 11 MW-22 L1682031-07 12 FIELD BLANK L1682031-08 13 TRIP BLANK L1682031-09 14 Qc: Quality Control Summary 15 Volatile Organic Compounds (GC) by Method 8015D/GRO 15 Volatile Organic Compounds (GC/MS) by Method 8260B 17 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 19 Gl: Glossary of Terms 20 Al: Accreditations & Locations 21 Sc: Sample Chain of Custody 22 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 14:22 2 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 2 of 22 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-11 L1682031-01 GW Olaf Q 11/27/23 15:30 11/29/23 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC) by Method 8015D/GRO WG2183553 1 12/06/23 13:39 12/06/23 13:39 ACG Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2181728 1 12/03/23 09:43 12/03/23 09:43 JCP Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2179415 1 11/30/23 08:08 11/30/23 17:28 DMG Mt. Juliet, TN Collected by Collected date/time Received date/time MW-14 L1682031-02 GW Olaf Q 11/27/23 16:30 11/29/23 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC) by Method 8015D/GRO WG2183553 20 12/06/23 14:28 12/06/23 14:28 ACG Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2181728 1 12/03/23 10:04 12/03/23 10:04 JCP Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2179415 5 11/30/23 08:08 12/01/23 13:49 TGB Mt. Juliet, TN Collected by Collected date/time Received date/time MW-15 L1682031-03 GW Olaf Q 11/27/23 16:45 11/29/23 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC) by Method 8015D/GRO WG2180229 10 11/30/23 19:56 11/30/23 19:56 NCD Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2181728 1 12/03/23 10:26 12/03/23 10:26 JCP Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2179415 5 11/30/23 08:08 12/01/23 14:09 TGB Mt. Juliet, TN Collected by Collected date/time Received date/time MW-18 L1682031-04 GW Olaf Q 11/27/23 16:15 11/29/23 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC) by Method 8015D/GRO WG2180229 1 11/30/23 15:03 11/30/23 15:03 NCD Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2182714 1 12/05/23 04:38 12/05/23 04:38 JCP Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2179415 1 11/30/23 08:08 11/30/23 18:29 DMG Mt. Juliet, TN Collected by Collected date/time Received date/time MW-19 L1682031-05 GW Olaf Q 11/27/23 15:00 11/29/23 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC) by Method 8015D/GRO WG2180229 1 11/30/23 15:28 11/30/23 15:28 NCD Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2181728 1 12/03/23 10:47 12/03/23 10:47 JCP Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2179415 1 11/30/23 08:08 11/30/23 18:49 DMG Mt. Juliet, TN Collected by Collected date/time Received date/time MW-21 L1682031-06 GW Olaf Q 11/27/23 16:00 11/29/23 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC) by Method 8015D/GRO WG2180229 1 11/30/23 15:52 11/30/23 15:52 NCD Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2181728 1 12/03/23 11:08 12/03/23 11:08 JCP Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2182714 20 12/05/23 05:20 12/05/23 05:20 JCP Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2179415 1 11/30/23 08:08 11/30/23 19:09 DMG 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: One Atlas L1682031 12/07/23 14:22 3 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 3 of 22 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-22 L1682031-07 GW Olaf Q 11/27/23 15:15 11/29/23 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC) by Method 8015D/GRO WG2180229 1 11/30/23 16:16 11/30/23 16:16 NCD Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2181728 1 12/03/23 11:30 12/03/23 11:30 JCP Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2182714 1 12/05/23 04:59 12/05/23 04:59 JCP Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2179415 1 11/30/23 08:08 11/30/23 19:58 DMG Mt. Juliet, TN Collected by Collected date/time Received date/time FIELD BLANK L1682031-08 GW Olaf Q 11/27/23 15:45 11/29/23 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC) by Method 8015D/GRO WG2180229 1 11/30/23 12:36 11/30/23 12:36 NCD Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2181728 1 12/03/23 05:25 12/03/23 05:25 JCP Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2179415 1 11/30/23 08:08 12/01/23 10:07 TGB Mt. Juliet, TN Collected by Collected date/time Received date/time TRIP BLANK L1682031-09 GW Olaf Q 11/27/23 00:00 11/29/23 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260B WG2181728 1 12/03/23 05:04 12/03/23 05:04 JCP 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: One Atlas L1682031 12/07/23 14:22 4 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 4 of 22 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] Daphne Richards 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: One Atlas L1682031 12/07/23 14:22 5 of 22 Daphne Richards Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 5 of 22 SAMPLE RESULTS - 01 L1682031 MW-11 Collected date/time: 11/27/23 15:30 Volatile Organic Compounds (GC) by Method 8015D/GRO Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time TPH (GC/FID) Low Fraction 424 31.4 100 1 12/06/2023 13:39 WG2183553 (S) a,a,a-Trifluorotoluene(FID)90.8 78.0-120 12/06/2023 13:39 WG2183553 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Benzene 129 0.0941 1.00 1 12/03/2023 09:43 WG2181728 Toluene U 0.278 1.00 1 12/03/2023 09:43 WG2181728 Ethylbenzene 17.5 0.137 1.00 1 12/03/2023 09:43 WG2181728 Total Xylenes 0.444 J 0.174 3.00 1 12/03/2023 09:43 WG2181728 Methyl tert-butyl ether U 0.101 1.00 1 12/03/2023 09:43 WG2181728 Naphthalene 1.38 J 1.00 5.00 1 12/03/2023 09:43 WG2181728 (S) Toluene-d8 104 80.0-120 12/03/2023 09:43 WG2181728 (S) 4-Bromofluorobenzene 103 77.0-126 12/03/2023 09:43 WG2181728 (S) 1,2-Dichloroethane-d4 103 70.0-130 12/03/2023 09:43 WG2181728 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time TPH (GC/FID) High Fraction 6130 24.7 100 1 11/30/2023 17:28 WG2179415 (S) o-Terphenyl 96.8 31.0-160 11/30/2023 17:28 WG2179415 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 14:22 6 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 6 of 22 SAMPLE RESULTS - 02 L1682031 MW-14 Collected date/time: 11/27/23 16:30 Volatile Organic Compounds (GC) by Method 8015D/GRO Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time TPH (GC/FID) Low Fraction 9870 628 2000 20 12/06/2023 14:28 WG2183553 (S) a,a,a-Trifluorotoluene(FID)100 78.0-120 12/06/2023 14:28 WG2183553 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Benzene 9.46 0.0941 1.00 1 12/03/2023 10:04 WG2181728 Toluene 1.25 0.278 1.00 1 12/03/2023 10:04 WG2181728 Ethylbenzene 0.200 J 0.137 1.00 1 12/03/2023 10:04 WG2181728 Total Xylenes 52.5 0.174 3.00 1 12/03/2023 10:04 WG2181728 Methyl tert-butyl ether 30.1 0.101 1.00 1 12/03/2023 10:04 WG2181728 Naphthalene 33.6 1.00 5.00 1 12/03/2023 10:04 WG2181728 (S) Toluene-d8 87.6 80.0-120 12/03/2023 10:04 WG2181728 (S) 4-Bromofluorobenzene 103 77.0-126 12/03/2023 10:04 WG2181728 (S) 1,2-Dichloroethane-d4 121 70.0-130 12/03/2023 10:04 WG2181728 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time TPH (GC/FID) High Fraction 17200 123 500 5 12/01/2023 13:49 WG2179415 (S) o-Terphenyl 127 31.0-160 12/01/2023 13:49 WG2179415 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 14:22 7 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 7 of 22 SAMPLE RESULTS - 03 L1682031 MW-15 Collected date/time: 11/27/23 16:45 Volatile Organic Compounds (GC) by Method 8015D/GRO Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time TPH (GC/FID) Low Fraction U 314 1000 10 11/30/2023 19:56 WG2180229 (S) a,a,a-Trifluorotoluene(FID)90.3 78.0-120 11/30/2023 19:56 WG2180229 Sample Narrative: L1682031-03 WG2180229: Lowest possible dilution due to sample foaming. Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Benzene 14.3 0.0941 1.00 1 12/03/2023 10:26 WG2181728 Toluene U 0.278 1.00 1 12/03/2023 10:26 WG2181728 Ethylbenzene U 0.137 1.00 1 12/03/2023 10:26 WG2181728 Total Xylenes 0.576 J 0.174 3.00 1 12/03/2023 10:26 WG2181728 Methyl tert-butyl ether 5.04 0.101 1.00 1 12/03/2023 10:26 WG2181728 Naphthalene 3.41 J 1.00 5.00 1 12/03/2023 10:26 WG2181728 (S) Toluene-d8 108 80.0-120 12/03/2023 10:26 WG2181728 (S) 4-Bromofluorobenzene 94.6 77.0-126 12/03/2023 10:26 WG2181728 (S) 1,2-Dichloroethane-d4 121 70.0-130 12/03/2023 10:26 WG2181728 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time TPH (GC/FID) High Fraction 11400 123 500 5 12/01/2023 14:09 WG2179415 (S) o-Terphenyl 136 31.0-160 12/01/2023 14:09 WG2179415 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 14:22 8 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 8 of 22 SAMPLE RESULTS - 04 L1682031 MW-18 Collected date/time: 11/27/23 16:15 Volatile Organic Compounds (GC) by Method 8015D/GRO Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time TPH (GC/FID) Low Fraction 1630 31.4 100 1 11/30/2023 15:03 WG2180229 (S) a,a,a-Trifluorotoluene(FID)105 78.0-120 11/30/2023 15:03 WG2180229 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Benzene U 0.0941 1.00 1 12/05/2023 04:38 WG2182714 Toluene U 0.278 1.00 1 12/05/2023 04:38 WG2182714 Ethylbenzene 1.09 0.137 1.00 1 12/05/2023 04:38 WG2182714 Total Xylenes 7.12 0.174 3.00 1 12/05/2023 04:38 WG2182714 Methyl tert-butyl ether U 0.101 1.00 1 12/05/2023 04:38 WG2182714 Naphthalene 19.4 1.00 5.00 1 12/05/2023 04:38 WG2182714 (S) Toluene-d8 103 80.0-120 12/05/2023 04:38 WG2182714 (S) 4-Bromofluorobenzene 114 77.0-126 12/05/2023 04:38 WG2182714 (S) 1,2-Dichloroethane-d4 91.8 70.0-130 12/05/2023 04:38 WG2182714 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time TPH (GC/FID) High Fraction 5670 24.7 100 1 11/30/2023 18:29 WG2179415 (S) o-Terphenyl 79.5 31.0-160 11/30/2023 18:29 WG2179415 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 14:22 9 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 9 of 22 SAMPLE RESULTS - 05 L1682031 MW-19 Collected date/time: 11/27/23 15:00 Volatile Organic Compounds (GC) by Method 8015D/GRO Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time TPH (GC/FID) Low Fraction 671 31.4 100 1 11/30/2023 15:28 WG2180229 (S) a,a,a-Trifluorotoluene(FID)97.3 78.0-120 11/30/2023 15:28 WG2180229 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Benzene 1.94 0.0941 1.00 1 12/03/2023 10:47 WG2181728 Toluene U 0.278 1.00 1 12/03/2023 10:47 WG2181728 Ethylbenzene 0.459 J 0.137 1.00 1 12/03/2023 10:47 WG2181728 Total Xylenes 0.673 J 0.174 3.00 1 12/03/2023 10:47 WG2181728 Methyl tert-butyl ether 3.36 0.101 1.00 1 12/03/2023 10:47 WG2181728 Naphthalene 11.3 1.00 5.00 1 12/03/2023 10:47 WG2181728 (S) Toluene-d8 99.1 80.0-120 12/03/2023 10:47 WG2181728 (S) 4-Bromofluorobenzene 102 77.0-126 12/03/2023 10:47 WG2181728 (S) 1,2-Dichloroethane-d4 93.8 70.0-130 12/03/2023 10:47 WG2181728 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time TPH (GC/FID) High Fraction 1740 24.7 100 1 11/30/2023 18:49 WG2179415 (S) o-Terphenyl 104 31.0-160 11/30/2023 18:49 WG2179415 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 14:22 10 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 10 of 22 SAMPLE RESULTS - 06 L1682031 MW-21 Collected date/time: 11/27/23 16:00 Volatile Organic Compounds (GC) by Method 8015D/GRO Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time TPH (GC/FID) Low Fraction 3330 31.4 100 1 11/30/2023 15:52 WG2180229 (S) a,a,a-Trifluorotoluene(FID)83.1 78.0-120 11/30/2023 15:52 WG2180229 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Benzene 1460 1.88 20.0 20 12/05/2023 05:20 WG2182714 Toluene 2.81 0.278 1.00 1 12/03/2023 11:08 WG2181728 Ethylbenzene 157 0.137 1.00 1 12/03/2023 11:08 WG2181728 Total Xylenes 13.6 0.174 3.00 1 12/03/2023 11:08 WG2181728 Methyl tert-butyl ether U 0.101 1.00 1 12/03/2023 11:08 WG2181728 Naphthalene 44.9 1.00 5.00 1 12/03/2023 11:08 WG2181728 (S) Toluene-d8 97.4 80.0-120 12/03/2023 11:08 WG2181728 (S) Toluene-d8 95.0 80.0-120 12/05/2023 05:20 WG2182714 (S) 4-Bromofluorobenzene 103 77.0-126 12/03/2023 11:08 WG2181728 (S) 4-Bromofluorobenzene 99.2 77.0-126 12/05/2023 05:20 WG2182714 (S) 1,2-Dichloroethane-d4 99.4 70.0-130 12/03/2023 11:08 WG2181728 (S) 1,2-Dichloroethane-d4 90.0 70.0-130 12/05/2023 05:20 WG2182714 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time TPH (GC/FID) High Fraction 9140 24.7 100 1 11/30/2023 19:09 WG2179415 (S) o-Terphenyl 90.5 31.0-160 11/30/2023 19:09 WG2179415 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 14:22 11 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 11 of 22 SAMPLE RESULTS - 07 L1682031 MW-22 Collected date/time: 11/27/23 15:15 Volatile Organic Compounds (GC) by Method 8015D/GRO Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time TPH (GC/FID) Low Fraction 67.3 J 31.4 100 1 11/30/2023 16:16 WG2180229 (S) a,a,a-Trifluorotoluene(FID)91.4 78.0-120 11/30/2023 16:16 WG2180229 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Benzene 2.17 0.0941 1.00 1 12/05/2023 04:59 WG2182714 Toluene U 0.278 1.00 1 12/03/2023 11:30 WG2181728 Ethylbenzene U 0.137 1.00 1 12/05/2023 04:59 WG2182714 Total Xylenes U 0.174 3.00 1 12/03/2023 11:30 WG2181728 Methyl tert-butyl ether U 0.101 1.00 1 12/03/2023 11:30 WG2181728 Naphthalene U 1.00 5.00 1 12/05/2023 04:59 WG2182714 (S) Toluene-d8 106 80.0-120 12/03/2023 11:30 WG2181728 (S) Toluene-d8 97.3 80.0-120 12/05/2023 04:59 WG2182714 (S) 4-Bromofluorobenzene 101 77.0-126 12/03/2023 11:30 WG2181728 (S) 4-Bromofluorobenzene 99.9 77.0-126 12/05/2023 04:59 WG2182714 (S) 1,2-Dichloroethane-d4 106 70.0-130 12/03/2023 11:30 WG2181728 (S) 1,2-Dichloroethane-d4 89.4 70.0-130 12/05/2023 04:59 WG2182714 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time TPH (GC/FID) High Fraction 2810 24.7 100 1 11/30/2023 19:58 WG2179415 (S) o-Terphenyl 94.7 31.0-160 11/30/2023 19:58 WG2179415 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 14:22 12 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 12 of 22 SAMPLE RESULTS - 08 L1682031 FIELD BLANK Collected date/time: 11/27/23 15:45 Volatile Organic Compounds (GC) by Method 8015D/GRO Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time TPH (GC/FID) Low Fraction U 31.4 100 1 11/30/2023 12:36 WG2180229 (S) a,a,a-Trifluorotoluene(FID)90.4 78.0-120 11/30/2023 12:36 WG2180229 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Benzene U 0.0941 1.00 1 12/03/2023 05:25 WG2181728 Toluene U 0.278 1.00 1 12/03/2023 05:25 WG2181728 Ethylbenzene U 0.137 1.00 1 12/03/2023 05:25 WG2181728 Total Xylenes U 0.174 3.00 1 12/03/2023 05:25 WG2181728 Methyl tert-butyl ether U 0.101 1.00 1 12/03/2023 05:25 WG2181728 Naphthalene U 1.00 5.00 1 12/03/2023 05:25 WG2181728 (S) Toluene-d8 105 80.0-120 12/03/2023 05:25 WG2181728 (S) 4-Bromofluorobenzene 109 77.0-126 12/03/2023 05:25 WG2181728 (S) 1,2-Dichloroethane-d4 110 70.0-130 12/03/2023 05:25 WG2181728 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time TPH (GC/FID) High Fraction 65.9 J 24.7 100 1 12/01/2023 10:07 WG2179415 (S) o-Terphenyl 141 31.0-160 12/01/2023 10:07 WG2179415 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 14:22 13 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 13 of 22 SAMPLE RESULTS - 09 L1682031 TRIP BLANK Collected date/time: 11/27/23 00:00 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Benzene U 0.0941 1.00 1 12/03/2023 05:04 WG2181728 Toluene U 0.278 1.00 1 12/03/2023 05:04 WG2181728 Ethylbenzene U 0.137 1.00 1 12/03/2023 05:04 WG2181728 Total Xylenes U 0.174 3.00 1 12/03/2023 05:04 WG2181728 Methyl tert-butyl ether U 0.101 1.00 1 12/03/2023 05:04 WG2181728 Naphthalene U 1.00 5.00 1 12/03/2023 05:04 WG2181728 (S) Toluene-d8 105 80.0-120 12/03/2023 05:04 WG2181728 (S) 4-Bromofluorobenzene 101 77.0-126 12/03/2023 05:04 WG2181728 (S) 1,2-Dichloroethane-d4 117 70.0-130 12/03/2023 05:04 WG2181728 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 14:22 14 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 14 of 22 QUALITY CONTROL SUMMARYWG2180229 Volatile Organic Compounds (GC) by Method 8015D/GRO L1682031-03,04,05,06,07,08 Method Blank (MB) (MB) R4008515-2 11/30/23 11:51 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l TPH (GC/FID) Low Fraction U 31.4 100 (S) a,a,a-Trifluorotoluene(FID)90.8 78.0-120 Laboratory Control Sample (LCS) (LCS) R4008515-1 11/30/23 11:02 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% TPH (GC/FID) Low Fraction 5500 6230 113 72.0-127 (S) a,a,a-Trifluorotoluene(FID) 98.5 78.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 14:22 15 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 15 of 22 QUALITY CONTROL SUMMARYWG2183553 Volatile Organic Compounds (GC) by Method 8015D/GRO L1682031-01,02 Method Blank (MB) (MB) R4009288-2 12/06/23 12:26 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l TPH (GC/FID) Low Fraction U 31.4 100 (S) a,a,a-Trifluorotoluene(FID)90.6 78.0-120 Laboratory Control Sample (LCS) (LCS) R4009288-1 12/06/23 11:37 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% TPH (GC/FID) Low Fraction 5500 5990 109 72.0-127 (S) a,a,a-Trifluorotoluene(FID) 93.2 78.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 14:22 16 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 16 of 22 QUALITY CONTROL SUMMARYWG2181728 Volatile Organic Compounds (GC/MS) by Method 8260B L1682031-01,02,03,05,06,07,08,09 Method Blank (MB) (MB) R4007982-3 12/03/23 04:42 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Benzene U 0.0941 1.00 Toluene U 0.278 1.00 Ethylbenzene U 0.137 1.00 Total Xylenes U 0.174 3.00 Methyl tert-butyl ether U 0.101 1.00 Naphthalene U 1.00 5.00 (S) Toluene-d8 103 80.0-120 (S) 4-Bromofluorobenzene 110 77.0-126 (S) 1,2-Dichloroethane-d4 110 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4007982-1 12/03/23 03:38 • (LCSD) R4007982-2 12/03/23 03:59 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Benzene 5.00 5.27 5.16 105 103 70.0-123 2.11 20 Toluene 5.00 5.45 4.63 109 92.6 79.0-120 16.3 20 Ethylbenzene 5.00 5.24 5.46 105 109 79.0-123 4.11 20 Total Xylenes 15.0 15.9 15.7 106 105 79.0-123 1.27 20 Methyl tert-butyl ether 5.00 5.58 5.12 112 102 68.0-125 8.60 20 Naphthalene 5.00 5.26 4.81 105 96.2 54.0-135 8.94 20 (S) Toluene-d8 106 92.6 80.0-120 (S) 4-Bromofluorobenzene 102 104 77.0-126 (S) 1,2-Dichloroethane-d4 111 108 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: One Atlas L1682031 12/07/23 14:22 17 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 17 of 22 QUALITY CONTROL SUMMARYWG2182714 Volatile Organic Compounds (GC/MS) by Method 8260B L1682031-04,06,07 Method Blank (MB) (MB) R4008216-2 12/05/23 01:07 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Benzene U 0.0941 1.00 Toluene U 0.278 1.00 Ethylbenzene U 0.137 1.00 Total Xylenes U 0.174 3.00 Methyl tert-butyl ether U 0.101 1.00 Naphthalene U 1.00 5.00 (S) Toluene-d8 95.5 80.0-120 (S) 4-Bromofluorobenzene 95.1 77.0-126 (S) 1,2-Dichloroethane-d4 93.4 70.0-130 Laboratory Control Sample (LCS) (LCS) R4008216-1 12/05/23 00:25 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% Benzene 5.00 5.32 106 70.0-123 Toluene 5.00 5.39 108 79.0-120 Ethylbenzene 5.00 5.47 109 79.0-123 Total Xylenes 15.0 17.1 114 79.0-123 Methyl tert-butyl ether 5.00 5.53 111 68.0-125 Naphthalene 5.00 5.47 109 54.0-135 (S) Toluene-d8 93.4 80.0-120 (S) 4-Bromofluorobenzene 95.9 77.0-126 (S) 1,2-Dichloroethane-d4 94.1 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: One Atlas L1682031 12/07/23 14:22 18 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 18 of 22 QUALITY CONTROL SUMMARYWG2179415 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 L1682031-01,02,03,04,05,06,07,08 Method Blank (MB) (MB) R4006988-1 11/30/23 13:47 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l TPH (GC/FID) High Fraction U 24.7 100 (S) o-Terphenyl 101 31.0-160 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4006988-2 11/30/23 14:07 • (LCSD) R4006988-3 11/30/23 14:27 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% TPH (GC/FID) High Fraction 1500 1450 1580 96.7 105 50.0-150 8.58 20 (S) o-Terphenyl 123 86.5 31.0-160 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 14:22 19 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 19 of 22 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. 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. 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 J The identification of the analyte is acceptable; the reported value is an estimate. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 14:22 20 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 20 of 22 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: One Atlas L1682031 12/07/23 14:22 21 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1682031 12/07/23 15:22 21 of 22