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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> _ M c C a m p b e I l Analytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "When Quality Counts" http://www.mccampbeR.com/E-mail:main@mccampbell.com <br /> Quality Control Report <br /> Client: AdvancedGeo,Inc. WorkOrder: 2309886 <br /> Date Prepared: 09/14/2023 BatchID: 278038 <br /> Date Analyzed: 09/22/2023 -09/23/2023 Extraction Method: SW5030B <br /> Instrument: GC16,GC49 Analytical Method: SW8260B <br /> Matrix: Soil Unit: mg/kg <br /> Project: San Joaquin County Corp Yard Sample ID: MB/LCS/LCSD-278038 <br /> QC Summary Report for SW8260B <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> cis-1,3-Dichloropropene 0.020 0.019 0.020 98 96 60-140 1.75 30 <br /> trans-1,3-Dichloropropene 0.020 0.019 0.020 98 96 60-140 1.71 30 <br /> Diisopropyl ether(DI PE) 0.017 0.016 0.020 83 82 60-140 0.864 30 <br /> Ethylbenzene 0.021 0.020 0.020 104 102 60-140 1.76 30 <br /> Ethyl tert-butyl ether(ETBE) 0.017 0.017 0.020 84 83 60-140 1.31 30 <br /> Freon 113 0.016 0.016 0.020 81 81 50-140 0.252 30 <br /> Hexachlorobutadiene 0.021 0.021 0.020 107 107 60-140 0.129 30 <br /> Hexachloroethane 0.022 0.022 0.020 109 108 60-140 1.14 30 <br /> 2-Hexanone 0.019 0.018 0.020 93 89 40-140 4.37 30 <br /> Isopropyl benzene 0.023 0.023 0.020 115 114 60-140 1.59 30 <br /> 4-Isopropyl toluene 0.024 0.023 0.020 119 117 60-150 1.66 30 <br /> Methyl-t-butyl ether(MTBE) 0.017 0.017 0.020 86 85 50-140 0.817 30 <br /> Methylene chloride 0.021 0.020 0.020 103 100 60-140 2.59 30 <br /> 4-Methyl-2-pentanone(MIBK) 0.017 0.017 0.020 85 86 50-140 0.607 30 <br /> Naphthalene 0.010 0.010 0.020 53 52 30-140 0.543 30 <br /> n-Propyl benzene 0.024 0.024 0.020 122 120 60-140 1.74 30 <br /> Styrene 0.018 0.018 0.020 92 91 60-140 0.710 30 <br /> 1,1,1,2-Tetrachloroethane 0.018 0.018 0.020 92 90 60-140 1.60 30 <br /> 1,1,2,2-Tetrachloroethane 0.019 0.019 0.020 95 94 40-140 1.83 30 <br /> Tetrachloroethene 0.020 0.020 0.020 100 100 60-140 0.293 30 <br /> Toluene 0.019 0.019 0.020 94 93 60-140 0.639 30 <br /> 1,2,3-Trichlorobenzene 0.013 0.013 0.020 67 65 40-140 3.51 30 <br /> 1,2,4-Trichlorobenzene 0.014 0.014 0.020 71 70 50-140 1.65 30 <br /> 1,1,1-Trichloroethane 0.018 0.018 0.020 88 89 60-140 1.14 30 <br /> 1,1,2-Trichloroethane 0.019 0.019 0.020 96 94 60-140 2.04 30 <br /> Trichloroethene 0.018 0.018 0.020 92 92 60-140 0.332 30 <br /> Trichlorofluoromethane 0.017 0.017 0.020 87 87 50-140 0.355 30 <br /> 1,2,3-Trichloropropane 0.010 0.0098 0.010 100 98 60-130 1.68 30 <br /> 1,2,4-Trim ethyl benzene 0.021 0.022 0.020 107 108 30-140 0.252 30 <br /> 1,3,5-Trim ethyl benzene 0.023 0.023 0.020 117 113 60-140 3.42 30 <br /> Vinyl Chloride 0.0087 0.0087 0.010 87 87 30-140 0.206 30 <br /> m,p-Xylene 0.040 0.040 0.040 100 99 60-140 0.851 30 <br /> o-Xylene 0.019 0.019 0.020 95 94 60-140 0.741 30 <br /> (Cont.) <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 20 of 28 <br />