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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 MS MS MSD SPK SPKRef MS MSD MS/MSD RPD RPD <br /> DF Result Result Val Val %REC %REC Limits Limit <br /> 1,3-Dichlorobenzene 1 0.018 0.019 0.020 ND 88 94 58-127 7.20 20 <br /> 1,4-Dichlorobenzene 1 0.017 0.018 0.020 ND 85 91 54-123 6.28 20 <br /> Dichlorodifluoromethane 1 0.0076 0.0082 0.020 ND 38 41 8-93 7.07 20 <br /> 1,1-Dichloroethane 1 0.016 0.018 0.020 ND 81 88 53-115 8.04 20 <br /> 1,2-Dichloroethane(1,2-DCA) 1 0.016 0.017 0.020 ND 82 87 48-105 6.47 20 <br /> 1,1-Dichloroethene 1 0.016 0.017 0.020 ND 79 86 47-127 9.01 20 <br /> cis-1,2-Dichloroethene 1 0.017 0.018 0.020 ND 85 91 56-111 7.33 20 <br /> trans-1,2-Dichloroethene 1 0.017 0.018 0.020 ND 84 90 51-115 7.64 20 <br /> 1,2-Dichloropropane 1 0.016 0.017 0.020 ND 78 83 51-111 7.12 20 <br /> 1,3-Dichloropropane 1 0.015 0.016 0.020 ND 76 82 51-109 7.41 20 <br /> 2,2-Dichloropropane 1 0.016 0.018 0.020 ND 81 89 50-116 8.72 20 <br /> 1,1-Dichloropropene 1 0.017 0.018 0.020 ND 84 91 46-124 7.99 20 <br /> cis-1,3-Dichloropropene 1 0.015 0.016 0.020 ND 74 80 41-127 8.49 20 <br /> trans-1,3-Dichloropropene 1 0.014 0.016 0.020 ND 72 79 50-111 8.44 20 <br /> Diisopropyl ether(DIPE) 1 0.014 0.015 0.020 ND 70 75 50-103 6.81 20 <br /> Ethylbenzene 1 0.018 0.020 0.020 ND 90 98 65-119 8.52 20 <br /> Ethyl tert-butyl ether(ETBE) 1 0.014 0.015 0.020 ND 68 74 47-100 8.22 20 <br /> Freon 113 1 0.015 0.017 0.020 ND 77 85 48-98 9.49 20 <br /> Hexachlorobutadiene 1 0.023 0.025 0.020 ND 113 125 36-166 10.4 20 <br /> Hexachloroethane 1 0.015 0.017 0.020 ND 75 85 61-146 12.1 20 <br /> 2-Hexanone 1 0.012 0.011 0.020 ND 58 55 31-87 4.11 20 <br /> Isopropylbenzene 1 0.019 0.022 0.020 ND 96 108 24-171 12.1 20 <br /> 4-Isopropyl toluene 1 0.021 0.023 0.020 ND 103 113 69-150 8.95 20 <br /> Methyl-t-butyl ether(MTBE) 1 0.016 0.017 0.020 ND 78 83 50-95 6.65 20 <br /> Methylene chloride 1 0.017 0.018 0.020 ND 85 92 39-123 8.08 20 <br /> 4-Methyl-2-pentanone(MIBK) 1 0.011 0.012 0.020 ND 56 60 41-83 7.29 20 <br /> Naphthalene 1 0.0096 0.0099 0.020 ND 48 50 13-77 3.23 20 <br /> n-Propyl benzene 1 0.020 0.022 0.020 ND 100 112 26-184 11.8 20 <br /> Styrene 1 0.014 0.016 0.020 ND 72 80 54-105 10.8 20 <br /> 1,1,1,2-Tetrachloroethane 1 0.017 0.018 0.020 ND 83 91 60-108 8.60 20 <br /> 1,1,2,2-Tetrachloroethane 1 0.014 0.015 0.020 ND 68 74 37-108 9.19 20 <br /> Tetrachloroethene 1 0.019 0.021 0.020 ND 96 105 54-127 8.99 20 <br /> Toluene 1 0.017 0.018 0.020 ND 83 92 63-114 9.54 20 <br /> 1,2,3-Trichlorobenzene 1 0.012 0.012 0.020 ND 57 61 14-97 5.33 20 <br /> 1,2,4-Trichlorobenzene 1 0.015 0.015 0.020 ND 73 76 31-106 4.11 20 <br /> 1,1,1-Trichloroethane 1 0.017 0.018 0.020 ND 85 92 55-114 8.13 20 <br /> 1,1,2-Trichloroethane 1 0.016 0.017 0.020 ND 78 84 50-104 7.75 20 <br /> Trichloroethene 1 0.018 0.020 0.020 ND 90 98 47-127 8.16 20 <br /> (Cont.) <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 74 of 88 <br />