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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: 177310 <br /> Date Analyzed: 5/4/19 Extraction Method: SW5030B <br /> Instrument: GC16 Analytical Method: SW8260B <br /> Matrix: Soil Unit: mg/kg <br /> Project: 11191863;212470-Tracy Chevron Sample ID: MB/LCS/LCSD-177310 <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 0.017 0.020 80 83 68-126 3.29 20 <br /> trans-1,3-Dichloropropene 0.016 0.017 0.020 80 83 69-117 4.20 20 <br /> Diisopropyl ether(DIPE) 0.017 0.017 0.020 84 87 57-110 3.65 20 <br /> Ethylbenzene 0.019 0.019 0.020 94 94 80-128 0 20 <br /> Ethyl tert-butyl ether(ETBE) 0.016 0.016 0.020 78 82 54-106 4.41 20 <br /> Freon 113 0.013 0.014 0.020 65 69 60-108 5.36 20 <br /> Hexachlorobutadiene 0.021 0.021 0.020 104 105 67-182 0.635 20 <br /> Hexachloroethane 0.021 0.021 0.020 104 103 85-156 0.986 20 <br /> 2-Hexanone 0.012 0.014 0.020 63 71 37-90 13.2 20 <br /> Isopropylbenzene 0.022 0.021 0.020 108 106 64-167 1.79 20 <br /> 4-Isopropyl toluene 0.021 0.022 0.020 107 108 88-167 0.812 20 <br /> Methyl-t-butyl ether(MTBE) 0.016 0.016 0.020 78 81 60-102 4.99 20 <br /> Methylene chloride 0.016 0.016 0.020 81 82 71-117 2.21 20 <br /> 4-Methyl-2-pentanone(MIBK) 0.013 0.014 0.020 66 70 48-90 4.59 20 <br /> Naphthalene 0.010 0.0090 0.020 50 45 29-65 10.8 20 <br /> n-Propyl benzene 0.022 0.022 0.020 112 109 88-161 2.23 20 <br /> Styrene 0.014 0.014 0.020 68, F2 70 70-108 1.97 20 <br /> 1,1,1,2-Tetrachloroethane 0.016 0.016 0.020 80 82 69-117 3.00 20 <br /> 1,1,2,2-Tetrachloroethane 0.014 0.013 0.020 68 66 53-96 3.06 20 <br /> Tetrachloroethene 0.017 0.018 0.020 85 87 78-128 2.60 20 <br /> Toluene 0.017 0.017 0.020 83 85 78-121 1.56 20 <br /> 1,2,3-Trichlorobenzene 0.012 0.011 0.020 60 57 35-80 6.11 20 <br /> 1,2,4-Trichlorobenzene 0.015 0.015 0.020 75 73 46-101 2.29 20 <br /> 1,1,1-Trichloroethane 0.017 0.017 0.020 83 86 69-121 3.37 20 <br /> 1,1,2-Trichloroethane 0.015 0.016 0.020 74 78 64-104 5.30 20 <br /> Trichloroethene 0.018 0.019 0.020 89 95 73-118 6.35 20 <br /> Trichlorofluoromethane 0.014 0.014 0.020 68 72 31-119 6.44 20 <br /> 1,2,3-Trichloropropane 0.014 0.014 0.020 70 71 65-107 1.45 20 <br /> 1,2,4-Trimethylbenzene 0.020 0.020 0.020 98 99 80-147 0.416 20 <br /> 1,3,5-Trimethylbenzene 0.020 0.020 0.020 102 100 83-156 1.37 20 <br /> Vinyl Chloride 0.012 0.013 0.020 61 67 40-125 10.2 20 <br /> m,p-Xylene 0.038 0.039 0.040 96 96 80-122 0 20 <br /> o-Xylene 0.018 0.018 0.020 89 91 79-116 2.19 20 <br /> (Cont.) <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 66 of 88 <br />