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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> M c C a m p b e l l Analytical, Inc, hTo:ll Free Tel nom:(977)152-9262 mFax: �m 5)252-9269 <br /> "When Quality Counts <br /> Quality Control Report <br /> Client: APTIM WorkOrder: 2102E13 <br /> Date Prepared: 02/24/2021 BatchlD: 216043 <br /> Date Analyzed: 02/24/2021 -02/25/2021 Extraction Method: SW5030B <br /> Instrument: GC18,GC38 Analytical Method: SW8260B <br /> Matrix: Soil Unit: mg/kg <br /> Project: 723019111;Lowes-Tracy,CA Sample ID: MBILCS/LCSD-216043 <br /> QC Summary Report for SW8260B <br /> Analyte LCS LCSD SPK LCS LCSD LCSILCSD RPD RPD <br /> Result Result Val %RFC %REC Limits Limit <br /> Surrogate Recovery <br /> Dibromofluoromethane 0.123 0.122 0.12 98 97 70-140 0.800 20 <br /> Toluene-d8 0.132 0.132 0.12 105 105 70-140 0.0257 20 <br /> 4-BFB 0.4156 0.0151 0.012 125 121 70-140 3.10 20 <br /> Benzene-d6 0.0926 0.0878 0.10 93 88 70-140 5.33 20 <br /> Ethylbenzene-d10 0.110 0.106 0.10 110 106 70-140 3.83 20 <br /> 1,2-DCB-d4 0.0821 0.0825 0.90 82 83 70-140 0.545 20 <br /> CA ELAP 1644•NELAP 40330RELAP <br /> VgnA N)of']F <br />