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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.mccampbell.com/E-mail:main@mccampbell.com <br /> Quality Control Report <br /> Client: GHD WorkOrder: 1905227 <br /> Date Prepared: 5/3/19 BatchID: 177316 <br /> Date Analyzed: 5/4/19 Extraction Method: SW5030B <br /> Instrument: GC38 Analytical Method: SW8260B <br /> Matrix: Soil Unit: mg/kg <br /> Project: 11191863;212470-Tracy Chevron Sample ID: MB/LCS/LCSD-177316 <br /> 1905227-014AMS/MSD <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 0.016 0.016 0.020 80 82 68-126 1.69 20 <br /> trans-1,3-Dichloropropene 0.015 0.016 0.020 76 79 69-117 2.83 20 <br /> Diisopropyl ether(DIPE) 0.015 0.016 0.020 75 78 57-110 3.05 20 <br /> Ethylbenzene 0.020 0.020 0.020 100 102 80-128 2.67 20 <br /> Ethyl tert-butyl ether(ETBE) 0.014 0.015 0.020 71 74 54-106 3.29 20 <br /> Freon 113 0.017 0.017 0.020 85 85 60-108 0 20 <br /> Hexachlorobutadiene 0.025 0.026 0.020 127 129 67-182 1.46 20 <br /> Hexachloroethane 0.017 0.017 0.020 86 87 85-156 1.19 20 <br /> 2-Hexanone 0.012 0.012 0.020 58 60 37-90 2.37 20 <br /> Isopropylbenzene 0.022 0.022 0.020 110 111 64-167 1.28 20 <br /> 4-Isopropyl toluene 0.023 0.023 0.020 116 117 88-167 0.904 20 <br /> Methyl-t-butyl ether(MTBE) 0.016 0.017 0.020 82 84 60-102 2.81 20 <br /> Methylene chloride 0.019 0.019 0.020 94 94 71-117 0 20 <br /> 4-Methyl-2-pentanone(MIBK) 0.011 0.011 0.020 55 57 48-90 4.19 20 <br /> Naphthalene 0.010 0.0095 0.020 51 47 29-65 7.38 20 <br /> n-Propyl benzene 0.023 0.023 0.020 114 115 88-161 0.894 20 <br /> Styrene 0.016 0.016 0.020 79 79 70-108 0 20 <br /> 1,1,1,2-Tetrachloroethane 0.018 0.018 0.020 90 92 69-117 1.83 20 <br /> 1,1,2,2-Tetrachloroethane 0.013 0.014 0.020 67 69 53-96 2.54 20 <br /> Tetrachloroethene 0.022 0.022 0.020 108 108 78-128 0 20 <br /> Toluene 0.018 0.019 0.020 92 93 78-121 0.773 20 <br /> 1,2,3-Trichlorobenzene 0.012 0.011 0.020 58 57 35-80 0.365 20 <br /> 1,2,4-Trichlorobenzene 0.015 0.015 0.020 75 74 46-101 1.52 20 <br /> 1,1,1-Trichloroethane 0.018 0.019 0.020 92 93 69-121 0.756 20 <br /> 1,1,2-Trichloroethane 0.016 0.017 0.020 81 83 64-104 2.59 20 <br /> Trichloroethene 0.020 0.020 0.020 100 101 73-118 1.05 20 <br /> Trichlorofluoromethane 0.018 0.018 0.020 92 92 31-119 0 20 <br /> 1,2,3-Trichloropropane 0.017 0.018 0.020 86 88 65-107 2.13 20 <br /> 1,2,4-Trimethylbenzene 0.020 0.021 0.020 101 103 80-147 2.00 20 <br /> 1,3,5-Trimethylbenzene 0.021 0.022 0.020 105 108 83-156 2.28 20 <br /> Vinyl Chloride 0.013 0.013 0.020 67 66 40-125 2.33 20 <br /> m,p-Xylene 0.039 0.040 0.040 98 99 80-122 1.57 20 <br /> o-Xylene 0.019 0.019 0.020 94 97 79-116 2.36 20 <br /> (Cont.) <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 72 of 88 <br />