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Page 23 of 32 <br /> C alscience <br /> n�irvnmental Quality Control - LCS/LCSD <br /> 1. a►boratories, Inc. <br /> Cardno ERI Date Received: 12/21/13 <br /> 601 North McDowell Blvd. Work Order: 13-12-1796 <br /> Petaluma, CA 94954-2312 Preparation: EPA 3510C <br /> Method: EPA 8015B (M) <br /> Project: ExxonMobil 99CAS/022789C Page 1 of 5 <br /> Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS/LCSD Batch Number <br /> 099-15-304.558 LCS Aqueous GC 48 12/23113 12/27/13 14:51 1131223620 <br /> 099-15-304.558 LCSD Aqueous GC 48 12/23113 12127113 15:06 931223620 <br /> Parameter alaiu LCS LCS LCSD LCSD %Rec.CL RPD RPD CL Qualifiers <br /> Added Conc. %Rec. Conc. %Rec. <br /> TPH as Diesel 2000 2345 117 2196 110 75-117 7 0-13 <br /> RPD:Relative Percent Difference. CL:Control Limits <br /> 7440 Lincoln Way.Garden Grove,CA 92841-1427 • TEL:(714)895-5494 • FAX:(714)894-7501 <br />