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L alscience <br />nvironmenial <br />Laboratories, Inc. <br />Cardno ERI <br />601 North McDowell Blvd. <br />Petaluma, CA 94954-2312 <br />Quality Control - LCS/LCS Duplicate <br />Project: ExxonMobil99CAS/022789C <br />Date Received: <br />Work Order No: <br />Preparation: <br />Method: <br />Page 10 of 16 <br />N/A <br />11-08-1796 <br />EPA 5030C <br />EPA 8015B (M) <br />Date [late LCS/LCSD Batch <br />Quality Control Sample H] SAalrix ipstrurnr nl Prepared Anal ced Nurnher <br />099-12-436-6,571 Aqueous GC 24 08/30/11 08/30/11 110830801 <br />Parameter LCS %REC LCSD %REC %REC CL RPD RPD CL Qualifiers <br />TPH as Gasoline 84 86 78-120 2 0-10 <br />RPD - Relative Percent Difference , CL - Control Limit <br />UTA 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:(714) 895-5494 - FAX: (714) 894-7501 <br />