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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 /> Acetone 0.19 0.20 0.20 97 99 59-127 1.93 20 <br /> tert-Amyl methyl ether(TAME) 0.014 0.015 0.020 71 75 54-98 4.93 20 <br /> Benzene 0.017 0.017 0.020 84 86 71-115 1.38 20 <br /> Bromobenzene 0.018 0.018 0.020 89 91 69-120 1.85 20 <br /> Bromochloromethane 0.019 0.020 0.020 97 98 63-117 0.581 20 <br /> Bromodichloromethane 0.016 0.016 0.020 78 80 61-109 2.64 20 <br /> Bromoform 0.011 0.012 0.020 56 58 46-87 2.37 20 <br /> Bromomethane 0.017 0.017 0.020 87 85 22-195 2.31 20 <br /> 2-Butanone(MEK) 0.052 0.053 0.080 66 66 53-124 0 20 <br /> t-Butyl alcohol(TBA) 0.056 0.060 0.080 70 75 29-142 6.50 20 <br /> n-Butyl benzene 0.024 0.024 0.020 119 119 102-169 0 20 <br /> sec-Butyl benzene 0.023 0.024 0.020 116 118 100-166 1.81 20 <br /> tert-Butyl benzene 0.022 0.022 0.020 112 111 91-153 1.50 20 <br /> Carbon Disulfide 0.016 0.016 0.020 82 81 60-125 2.19 20 <br /> Carbon Tetrachloride 0.019 0.019 0.020 95 96 69-124 0.753 20 <br /> Chlorobenzene 0.019 0.019 0.020 94 95 73-116 0.924 20 <br /> Chloroethane 0.015 0.014 0.020 73 71 47-140 1.82 20 <br /> Chloroform 0.018 0.019 0.020 92 94 69-118 1.42 20 <br /> Chloromethane 0.012 0.012 0.020 59 59 30-132 0 20 <br /> 2-Chlorotoluene 0.020 0.020 0.020 102 101 75-147 0.968 20 <br /> 4-Chlorotoluene 0.019 0.019 0.020 96 97 75-137 0.182 20 <br /> Dibromochloromethane 0.014 0.014 0.020 70 71 57-105 2.24 20 <br /> 1,2-Dibromo-3-chloropropane 0.013 0.013 0.020 65 66 36-103 1.33 20 <br /> 1,2-Dibromoethane(EDB) 0.016 0.016 0.020 79 82 66-101 2.67 20 <br /> Dibromomethane 0.016 0.017 0.020 80 84 61-103 4.11 20 <br /> 1,2-Dichlorobenzene 0.016 0.016 0.020 78 80 59-104 2.34 20 <br /> 1,3-Dichlorobenzene 0.019 0.019 0.020 95 97 70-133 1.65 20 <br /> 1,4-Dichlorobenzene 0.018 0.018 0.020 91 90 68-123 0.413 20 <br /> Dichlorodifluoromethane 0.0089 0.0086 0.020 44 43 13-107 3.09 20 <br /> 1,1-Dichloroethane 0.018 0.018 0.020 89 89 69-118 0 20 <br /> 1,2-Dichloroethane(1,2-DCA) 0.017 0.018 0.020 86 88 59-112 2.45 20 <br /> 1,1-Dichloroethene 0.017 0.017 0.020 87 87 69-126 0 20 <br /> cis-1,2-Dichloroethene 0.018 0.018 0.020 92 92 69-116 0 20 <br /> trans-1,2-Dichloroethene 0.018 0.018 0.020 91 92 73-116 0.493 20 <br /> 1,2-Dichloropropane 0.017 0.017 0.020 83 85 65-111 2.10 20 <br /> 1,3-Dichloropropane 0.018 0.018 0.020 89 91 67-110 2.22 20 <br /> 2,2-Dichloropropane 0.018 0.018 0.020 91 91 65-125 0 20 <br /> 1,1-Dichloropropene 0.018 0.018 0.020 91 92 70-123 1.12 20 <br /> (Cont.) <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 71 of 88 <br />