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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> _ M c C a m p b e I I Analytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> I "When Quality Counts" http://www.mccampbell.com/E-mail:main@mccampbell.com <br /> Quality Control Report <br /> Client: Patriot Environmental Services,Inc. WorkOrder: 2411396 <br /> Date Prepared: 11/07/2024 BatchID: 305513 <br /> Date Analyzed: 11/10/2024- 11/11/2024 Extraction Method: SW5035 <br /> Instrument: GC19 Analytical Method: SW8021B/8015Bm <br /> Matrix: Soil Unit: mg/Kg <br /> Project: 6515;Marathon Stockton Bin Sample ID: MB/LCS/LCSD-305513 <br /> QC Summary Report for SW8021B/8015Bm <br /> Analyte MB MDL RL SPK MB IS/SS MB IS/SS <br /> Result Val %REC Limits <br /> TPH(g)(C6-C12) ND 0.48 1.0 - - <br /> MTBE ND 0.0025 0.050 - - <br /> Benzene ND 0.0014 0.0050 - - <br /> Toluene ND 0.0021 0.0050 - - <br /> Ethylbenzene ND 0.00093 0.0050 - - <br /> m,p-Xylene ND 0.0024 0.010 - - <br /> o-Xylene ND 0.00090 0.0050 - - - <br /> Surrogate Recovery <br /> 2-Fluorotoluene 0.098 0.1 98 75-120 <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> TPH(btex) 0.55 0.55 0.60 92 91 75-120 1.05 20 <br /> MTBE 0.084 0.095 0.10 84 95 65-120 12.0 20 <br /> Benzene 0.092 0.10 0.10 92 103 75-120 11.2 20 <br /> Toluene 0.098 0.11 0.10 98 106 80-120 7.83 20 <br /> Ethylbenzene 0.098 0.10 0.10 98 103 80-120 4.95 20 <br /> m,p-Xylene 0.20 0.21 0.20 99 104 75-120 4.55 20 <br /> o-Xylene 0.10 0.10 0.10 101 104 75-120 3.18 20 <br /> Surrogate Recovery <br /> 2-Fluorotoluene 0.092 0.098 0.10 92 98 75-120 6.13 20 <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 20 of 27 <br />