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Page 21 of 28 <br /> Lalscience <br /> ,_nvironmental Quality Control - LCS/LCS Duplicate <br /> r� abora tories, Inc. <br /> Cardno ERI Date Received: N/A <br /> 601 North McDowell Blvd. Work Order No: 11-09-1646 <br /> Petaluma, CA 94954-2312 Preparation: EPA 5030C <br /> Method: EPA 8015B (M) <br /> Project: ExxonMobil99CAS/022789C <br /> Dale f7a[e LCS/LCSD Batch <br /> Quality Control Sample ID Moatrix Inslrunlent hraparel Ar,=alyzod Number <br /> 099-12-436-6,652 Aqueous GC 18 09/26/11 09/26/11 110926801 <br /> Parameter SPIKE ADDED LCS%REC LCSD%REC %REC CL RPD RPD CL Qualifiers <br /> TPH as Gasoline 2000 103 99 78-120 3 0-10 <br /> RPD-Relative Percent Difference, CL-Control Limit <br /> hAlk <br /> 7440 Lincoln Way, Garden Grove, CA 92841-1427 a TEL:(714)895-5494 . FAX: (714) 894-7501 <br />