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HomeMy WebLinkAboutDERR-2024-012776FIGURE 1 Big O Tires 1 TABLE 1 GROUNDWATER ANALYTICAL AND ELEVATION DATA SUMMARY BIG O TIRES 208 SOUTH MAIN STREET RICHFIELD, UTAH SAMPLE ETHYL-NAPH- LOCATION DATE BENZENE BENZENE MTBE THALENE TOLUENE XYLENES TPH-GRO TPH-DRO FPT DTW WTE TOC (ft.)MM/DD/YY (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 RBCA Tier 1 Screening 0.3 4.0 0.2 0.7 3.0 10 10 10 MW-1 11/20/18 0.005 <0.012 <0.005 <0.012 <0.012 <0.012 0.126 <1.0 0.00 20.59 80.93 101.52 02/28/19 0.08 <0.012 <0.005 <0.012 <0.012 <0.012 <0.125 <1.0 0.00 20.99 80.53 05/14/19 0.093 0.022 <0.005 <0.012 <0.012 <0.012 0.424 <1.0 0.00 20.66 80.86 08/29/19 0.00503 0.00109 <0.00100 <0.00500 <0.00100 <0.00300 0.208B <0.100 0.00 20.41 81.11 12/19/19 0.00541 0.00102 <0.00100 <0.00500 <0.00100 <0.00300 0.265 0.130 B 0.00 20.88 80.64 02/11/20 0.0143 0.00268 <0.00100 <0.00500 <0.00100 <0.00300 0.586 0.0483 BJ 0.00 20.98 80.54 05/20/20 0.0195 0.00360 <0.00100 <0.00500 0.000757 J 0.00150 J 0.483 <0.100 0.00 20.34 81.18 08/19/20 0.00418 0.000735 J <0.00100 <0.00500 <0.00100 0.000259 J 0.408 <0.100 0.00 20.17 81.35 MW-2 11/19/18 0.372 0.024 <0.005 0.019 0.017 0.726 2.74 1.4 0.00 20.69 79.20 99.89 02/28/19 0.416 0.107 <0.005 <0.012 0.016 0.351 1.67 <1.0 0.00 21.07 78.82 05/14/19 0.568 0.152 <0.005 0.019 0.024 0.328 1.96 1.1 0.00 20.65 79.24 08/29/19 0.147 0.103 0.000374 J 0.00498 J 0.0194 0.380 2.800 0.226 0.00 20.46 79.43 12/19/19 0.386 0.0966 <0.010 0.0118 J 0.0156 0.318 4.970 0.491 B 0.00 20.95 78.94 02/11/20 0.275 0.0882 0.000368 J 0.00729 0.0121 0.258 3.560 0.187 0.00 21.05 78.84 05/20/20 0.287 0.0872 <0.00100 0.0123 0.0148 0.310 2.780 0.110 0.00 20.41 79.48 08/19/20 0.192 0.0430 <0.00100 0.00683 0.00628 0.153 2.560 0.258 0.00 20.23 79.66 MW-3 11/19/18 0.211 0.040 <0.005 0.018 <0.012 <0.012 1.02 <1.0 0.00 19.45 78.69 98.14 02/28/19 0.103 <0.012 <0.005 <0.012 <0.012 <0.012 0.290 <1.0 0.00 19.90 78.24 05/14/19 0.135 0.026 <0.005 0.020 <0.012 <0.012 0.364 <1.0 0.00 19.58 78.56 08/29/19 0.127 0.00754 <0.00100 0.0172 0.00160 0.00678 0.975 0.241 0.00 19.34 78.80 12/19/19 0.108 0.00276 <0.00100 0.0104 0.00168 0.00407 1.590 0.487 B 0.00 19.88 78.26 02/11/20 0.116 0.00316 <0.00100 0.0103 0.00174 0.00386 1.580 0.233 0.00 20.01 78.13 05/20/20 0.202 0.0122 <0.00100 0.0463 0.00400 0.00998 2.080 0.310 0.00 20.32 77.82 08/19/20 0.229 0.00430 <0.00100 0.0260 0.00341 0.00706 1.830 0.474 0.00 19.14 79.00 MW-4 11/19/18 1.12 0.208 <0.005 0.013 0.415 0.853 3.26 1.1 0.00 20.54 78.95 99.49 02/28/19 0.154 0.026 <0.005 <0.012 0.042 0.081 0.303 <1.0 0.00 20.99 78.50 05/14/19 3.02 0.249 <0.005 0.013 0.344 0.656 5.07 1.1 0.00 20.69 78.80 08/29/19 0.102 0.0152 <0.00100 0.00115J 0.0251 0.0565 0.653 0.149 0.00 20.43 79.06 12/19/19 0.149 0.0243 <0.00100 0.00308 J 0.0389 0.101 1.010 0.344 B 0.00 20.92 78.57 02/11/20 0.143 0.0129 <0.00100 0.00119 J 0.0255 0.0567 0.908 0.0318 J 0.00 21.05 78.44 05/20/20 0.163 0.0252 0.000281 J 0.00356 J 0.0502 0.122 1.260 0.0835 J 0.00 20.38 79.11 08/19/20 0.0836 0.00827 0.000153 J <0.00500 0.0144 0.0391 0.487 0.194 0.00 20.20 79.29 MW-5 11/20/18 <0.005 <0.012 <0.005 <0.012 <0.012 <0.012 <0.125 1.2 0.00 21.85 78.13 99.98 02/28/19 <0.005 <0.012 <0.005 <0.012 <0.012 <0.012 <0.125 <1.0 0.00 22.27 77.71 05/14/19 <0.005 <0.012 <0.005 <0.012 <0.012 <0.012 <0.125 <1.0 0.00 21.93 78.05 08/29/19 <0.00100 <0.00100 <0.00100 <0.00500 <0.00100 <0.00300 0.0582B,J 2.950 0.00 21.77 78.21 12/19/19 <0.00100 <0.00100 <0.00100 <0.00500 <0.00100 <0.00300 <0.100 0.710 B 0.00 22.21 77.77 02/11/20 <0.00100 <0.00100 <0.00100 <0.00500 <0.00100 <0.00300 <0.100 0.198 B 0.00 22.31 77.67 05/20/20 <0.00100 <0.00100 <0.00100 <0.00500 <0.00100 <0.00300 0.0348 B,J 0.268 0.00 21.66 78.32 08/19/20 <0.00100 <0.00100 <0.00100 <0.00500 <0.00100 <0.00300 <0.100 0.295 0.00 21.49 78.49 MW-6 11/20/18 0.012 <0.012 <0.005 <0.012 <0.012 <0.012 0.302 <1.0 0.00 20.72 79.28 100.00 02/28/19 0.008 <0.012 <0.005 <0.012 <0.012 <0.012 <0.125 <1.0 0.00 21.12 78.88 05/14/19 <0.005 <0.012 <0.005 <0.012 <0.012 <0.012 <0.125 <1.0 0.00 20.70 79.30 08/29/19 0.00173 0.000558J <0.00100 <0.00500 <0.00100 <0.00300 0.103B <0.00100 0.00 20.52 79.48 12/19/19 0.00522 0.000648 J <0.00100 <0.00500 <0.00100 <0.00300 0.202 0.0665 B,J 0.00 20.99 79.01 02/11/20 0.00102 <0.00100 <0.00100 <0.00500 <0.00100 <0.00300 <0.100 <0.100 0.00 21.09 78.91 05/20/20 0.000566 J 0.000182 J <0.00100 <0.00500 <0.00100 <0.00300 0.0414 B,J <0.100 0.00 20.43 79.57 08/19/20 0.00103 0.000365 J <0.00100 <0.00500 <0.00100 0.000239 J 0.0506 J <0.100 0.00 20.29 79.71 Big O Tires 2 TABLE 1 GROUNDWATER ANALYTICAL AND ELEVATION DATA SUMMARY BIG O TIRES 208 SOUTH MAIN STREET RICHFIELD, UTAH SAMPLE ETHYL-NAPH- LOCATION DATE BENZENE BENZENE MTBE THALENE TOLUENE XYLENES TPH-GRO TPH-DRO FPT DTW WTE TOC (ft.)MM/DD/YY (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 RBCA Tier 1 Screening 0.3 4.0 0.2 0.7 3.0 10 10 10 MW-7 11/19/18 0.347 0.052 <0.005 0.016 <0.012 0.013 1.93 1.0 0.00 18.58 78.41 96.99 02/28/19 0.307 0.023 <0.005 <0.012 <0.012 <0.012 1.21 <1.0 0.00 19.03 77.96 05/14/19 0.242 0.016 <0.005 <0.012 <0.012 <0.012 1.00 <1.0 0.00 18.69 78.30 08/29/19 0.148 0.0412 <0.00100 0.00906 0.00783 0.0159 4.110 0.375 0.00 18.48 78.51 12/19/19 0.254 0.0312 <0.010 0.0146 J 0.00739 J 0.0133 J 4.640 0.608 0.00 19.02 77.97 02/11/20 0.271 0.0408 <0.00100 0.0192 0.00783 0.0169 4.620 0.406 0.00 19.18 77.81 05/20/20 0.189 0.0283 <0.00100 0.0231 0.00784 0.0171 3.570 0.264 0.00 18.48 78.51 08/19/20 0.116 0.0148 <0.00100 0.0168 0.00466 0.0100 2.540 0.406 0.00 18.29 78.70 10/24/24 0.0548 0.00932 <0.00100 0.0185 0.00363 0.00479 1.620 0.426 0.00 19.77 77.22 MW-8 11/19/18 0.016 <0.012 <0.005 <0.012 <0.012 <0.012 <0.125 <1.0 0.00 20.14 78.65 98.79 02/28/19 0.016 <0.012 <0.005 <0.012 <0.012 <0.012 <0.125 <1.0 0.00 20.58 78.21 05/14/19 0.040 <0.012 <0.005 <0.012 <0.012 <0.012 <0.125 <1.0 0.00 20.27 78.52 08/29/19 0.0467 0.00412 <0.00100 0.00281J 0.000658J 0.00212J 0.788 0.0811J 0.00 20.05 78.74 12/19/19 0.0316 0.00231 <0.00100 0.00445 J 0.000609 J 0.00141 J 0.993 0.296 B 0.00 20.58 78.21 02/11/20 0.0357 0.00157 <0.00100 0.00547 0.000554 J 0.00127 J 0.520 0.352 0.00 20.72 78.07 05/20/20 0.0340 0.00125 <0.00100 0.00368 J 0.00119 0.00245 J 0.525 <0.100 0.00 20.04 78.75 08/19/20 0.0414 0.00431 <0.00100 0.00933 0.000706 J 0.00184 J 0.637 0.205 0.00 19.84 78.95 Notes: TPH -GRO = Total Petroleum Hydrocarbons as Gasoline NE = Not Established TPH -DRO = Total Petroleum Hydrocarbons as Diesel DTW = Depth to Water TOC = Top of Casing, Monitoring Well Surveyed Elevation mg/L = Milligrams per Liter < = Not detected above the laboratory reporting limit FPT = Free Product Thickness RBCA = Risk Based Corrective Action WTE = Water Table Elevation J = The identification of the analyte is acceptable; the reported value is an estimate.B = The same analyte is found in the associated blank. Bold numbers indicate an exceedance of the Tier I Screening Level ANALYTICAL REPORT November 07, 2024 One Atlas Sample Delivery Group:L1795530 Samples Received:11/05/2024 Project Number: Description:Big O Tires Report To:Jim Coletta 1775 South 4130 West, Ste A Salt Lake City, UT 84104 Entire Report Reviewed By: November 07, 2024 [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 mydata.pacelabs.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 L1795530 11/07/24 16:31 1 of 11 November 07, 2024 Daphne Richards Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1795530 11/07/24 16:31 1 of 11 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 MW-7 L1795530-01 5 Qc: Quality Control Summary 6 Volatile Organic Compounds (GC) by Method 8015D/GRO 6 Volatile Organic Compounds (GC/MS) by Method 8260B 7 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 8 Gl: Glossary of Terms 9 Al: Accreditations & Locations 10 Sc: Sample Chain of Custody 11 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 L1795530 11/07/24 16:31 2 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1795530 11/07/24 16:31 2 of 11 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-7 L1795530-01 GW Olaf Questereit 10/24/24 10:00 11/05/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC) by Method 8015D/GRO WG2396115 1 11/06/24 02:51 11/06/24 02:51 ADM Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2397102 1 11/07/24 03:52 11/07/24 03:52 JHH Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2395778 1 11/05/24 17:58 11/06/24 11:55 MAA 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 L1795530 11/07/24 16:31 3 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1795530 11/07/24 16:31 3 of 11 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 L1795530 11/07/24 16:31 4 of 11 Daphne Richards Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1795530 11/07/24 16:31 4 of 11 SAMPLE RESULTS - 01 L1795530 MW-7 Collected date/time: 10/24/24 10:00 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 1620 31.4 100 1 11/06/2024 02:51 WG2396115 (S) a,a,a-Trifluorotoluene(FID)95.5 78.0-120 11/06/2024 02:51 WG2396115 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 54.8 0.0941 1.00 1 11/07/2024 03:52 WG2397102 Toluene 3.63 0.278 1.00 1 11/07/2024 03:52 WG2397102 Ethylbenzene 9.32 0.137 1.00 1 11/07/2024 03:52 WG2397102 Total Xylenes 4.79 0.174 3.00 1 11/07/2024 03:52 WG2397102 Methyl tert-butyl ether U 0.101 1.00 1 11/07/2024 03:52 WG2397102 Naphthalene 18.5 1.00 5.00 1 11/07/2024 03:52 WG2397102 (S) Toluene-d8 105 80.0-120 11/07/2024 03:52 WG2397102 (S) 4-Bromofluorobenzene 99.1 77.0-126 11/07/2024 03:52 WG2397102 (S) 1,2-Dichloroethane-d4 105 70.0-130 11/07/2024 03:52 WG2397102 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 426 24.7 100 1 11/06/2024 11:55 WG2395778 (S) o-Terphenyl 102 52.0-156 11/06/2024 11:55 WG2395778 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 L1795530 11/07/24 16:31 5 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1795530 11/07/24 16:31 5 of 11 QUALITY CONTROL SUMMARYWG2396115 Volatile Organic Compounds (GC) by Method 8015D/GRO L1795530-01 Method Blank (MB) (MB) R4143140-3 11/05/24 23:18 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)99.2 78.0-120 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4143140-1 11/05/24 21:58 • (LCSD) R4143140-2 11/05/24 22:34 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) Low Fraction 5000 4360 4700 87.2 94.0 72.0-127 7.51 20 (S) a,a,a-Trifluorotoluene(FID) 97.7 97.5 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 L1795530 11/07/24 16:31 6 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1795530 11/07/24 16:31 6 of 11 QUALITY CONTROL SUMMARYWG2397102 Volatile Organic Compounds (GC/MS) by Method 8260B L1795530-01 Method Blank (MB) (MB) R4143267-3 11/07/24 02:50 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 107 80.0-120 (S) 4-Bromofluorobenzene 95.6 77.0-126 (S) 1,2-Dichloroethane-d4 102 70.0-130 Laboratory Control Sample (LCS) (LCS) R4143267-1 11/07/24 01:06 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% Benzene 5.00 4.65 93.0 70.0-123 Toluene 5.00 4.74 94.8 79.0-120 Ethylbenzene 5.00 4.83 96.6 79.0-123 Total Xylenes 15.0 14.0 93.3 79.0-123 Methyl tert-butyl ether 5.00 4.50 90.0 68.0-125 Naphthalene 5.00 3.37 67.4 54.0-135 J (S) Toluene-d8 103 80.0-120 (S) 4-Bromofluorobenzene 95.6 77.0-126 (S) 1,2-Dichloroethane-d4 102 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 L1795530 11/07/24 16:31 7 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1795530 11/07/24 16:31 7 of 11 QUALITY CONTROL SUMMARYWG2395778 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 L1795530-01 Method Blank (MB) (MB) R4143028-1 11/06/24 10:51 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 120 52.0-156 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4143028-2 11/06/24 11:12 • (LCSD) R4143028-3 11/06/24 11:34 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 1520 1620 101 108 50.0-150 6.37 20 (S) o-Terphenyl 91.5 98.5 52.0-156 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 L1795530 11/07/24 16:31 8 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1795530 11/07/24 16:31 8 of 11 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 L1795530 11/07/24 16:31 9 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1795530 11/07/24 16:31 9 of 11 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 L1795530 11/07/24 16:31 10 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: One Atlas L1795530 11/07/24 16:31 10 of 11