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3534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> } Mc G a m p be I I Analytical, Inc. Toll Free Teiephone:(877)252-92621 Fax:(925)252-9269 <br /> "When Quality Counts" http;llwww.rmnmpbell.oml E-mail:main@r=anVbell.com <br /> Quality Control Report <br /> Client: APTIM WorkGrder: 2102E10 <br /> Date Prepared: 02/24/2021 BatchID: 216043 <br /> Date Analyzed: 02/24/2021 -02/25/2021 Extraction Method: SW5030B <br /> Instrument: GC 18,GC38 Analytical Method: SW8260B <br /> Matrix: Soil Unit: mg/kg <br /> Project: 723019111;Lowes-Tracy,CA Sample ID: MB/LCSILCSD-216043 <br /> QC Summary Report for SW8260B <br /> Analyte LCS LCSD SPK LCS LCS© LCSILCSD RPO RPD <br /> Result Result Val %REG %REC Limits Limit <br /> cis-1,3-Dichloropropene 0.0188 0.0184 0.020 94 92 60-140 1.73 20 <br /> trans-1,3-Dichloropropene 0.0192 0.0190 0.020 96 95 60-140 0.517 20 <br /> Diisopropy ether(DIPJ=) 0.0172 0.0169 0.020 86 85 60-140 1.89 20 <br /> Ethylbenzene 0.0193 0.0186 0.020 97 93 60-140 3.69 20 <br /> Ethyl tert-butyl ether{ETRE} 0.0181 0.0178 0.020 90 89 60-140 1.44 20 <br /> Freon 113 0.0131 0.0125 0.020 65 63 50-140 4.34 20 <br /> Hexachlorobutadiene 0.0285 0.0271 0.020 143,F2 136 60-140 5.03 20 <br /> Hexachloroethane 0.0238 0,0236 0.020 119 118 60-140 0.453 20 <br /> 2-Hexanone 0.0144 0,0147 0.020 72 74 40-140 1.91 20 <br /> isopropylbenzene 0.0244 0.0239 0.020 122 119 60-140 2.12 20 <br /> 4-Isopropyl toluene 0.0248 0.0245 0.020 124 122 60-150 1.38 20 <br /> Methyl-t-butyl ether(MTBE) 0.0167 0.0169 0.020 83 84 50-140 1.38 20 <br /> Methylene chloride 0.0195 0.0187 0.020 97 93 60-140 4.14 20 <br /> 4-Methy4-2-pentanone(MIBK) 0.0152 0.0151 0.020 76 76 50-140 0.804 20 <br /> Naphthalene 0.0103 0.0105 0.020 51 53 30-140 2.19 20 <br /> n-Propyl benzene 0.0235 0.0228 0.020 118 114 60-140 2.82 20 <br /> Styrene 0.0149 0.0150 0.020 75 75 60-140 0.503 20 <br /> 1,1,1,2-Tetrachloroethane 0.0191 0.0191 0.020 95 95 60-140 0.185 20 <br /> 1,1,2,2-Tetrachloroethane 0.0152 0.0131 0.020 76 65 40-140 15.5 20 <br /> Tatrachloroethene 0.0171 0.0164 0.020^ 88� $2 60-140 4.47 20 <br /> Toluene 0.0172 0.0166 0.020 86 83 60-140 3.38 20 <br /> 1,2,3-Trichlorobernzene 0.0122 0.0125 0.020 61 62 40-140 2.20 20 <br /> 1,2,4-Trichlorobenzene 0.0173 0.0169 0.020 87 84 50-140 2.56 20 <br /> 1,1,1-Trichloroethane 0.0169 0.0161 0.020 84 80 60-140 4.81 20 <br /> 1,1,2-Trichloroethane 0.0170 0.0172 0.020 85 86 60-140 1.08 20 <br /> Trichloroethene 0.0168 0.0178 0.020 84 89 60-140 5.48 20 <br /> Trichlorofluoromethane 0.0146 0.0141 0.020 73 70 50-140 4.02 20 <br /> 1,2,3-Trichloropropane 0.00847 0.00846 0.010 85 85 40-140 0.132 20 <br /> 1,2,4-Trim ethyl benzene 0.0206 0.0204 0.020 103 102 30-140 0.987 20 <br /> 1,3,5-Trim ethyl benzene 0.0225 0.0221 0.020 113 111 60-140 1.71 20 <br /> Vinyl Chloride 0.00476 0.00443 0.010 48 44 30-140 7.09 20 <br /> m,p-Xylene 0.0337 0.0326 0.040 84 81 60-140 3.46 20 <br /> o-Xylene 0.0176 0.0171 0.020 88 86 60-140 2.50 20 <br /> (Cont.) <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> pane I I of N <br />