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Page 10 of 18 <br /> a1science <br /> Environmental Quality Control LCS/LCS Duplicate <br /> Laboratories, Inc. <br /> Shell Oil Pipeline Company LP Date Received: N/A <br /> P.O. Box 2648 Work Order No: 09-05-0367 <br /> Houston, TX 77252-2648 Preparation: EPA 30508 <br /> Method: EPA 60108 <br /> Project: 25705 Patterson Pass Rd., Tracy, CA <br /> Date Date LCS/LCSD Batch <br /> Quality Control Semple ID Matrix Instrument Prepared Analyzed Number <br /> 097-01.002-12,296 Solid JCP 5300 05M1109 05111109 090511L01 <br /> Rammete LCS%REC LCSD%REC %REC CL ME CL RV—DRPD CL Qualiflers <br /> Antimony 97 .98 80-120 73-127. . 0 0-20 <br /> Arsenic 101 101 80-120 73-127 0 0-20 <br /> Barium 105 104 80-120 73-127 0 0-20 <br /> Beryllium 98 98 .80-1.20 73-127 0 0-20 <br /> Cadmium 100 100 80-120 73-127 0 0.20 <br /> Chromium 97 96 80-120 .73-127 0 0-20 <br /> Cobalt 104 104 80-120 73-127 0 0-20 <br /> Copper 97 97 .80-120 73-127 0 0-20 <br /> Lead .104 104 80-120 73-127 1 0-20 <br /> Molybdenum 105 105 807120 13-127 0 0-20 <br /> Nickel 105 105 80-120 73-127 0 0-20 <br /> Selenium 96 95 80.120 73-127 0 0-20 <br /> Silver .97 97 80-12.0 73-127 0 0-20 <br /> Thallium 16.5 106. 80-120 73-127 1 0-20 <br /> Vanadium .97 97 80-120 73-127 0 0-20 <br /> Zinc 102 102 80-120 73-127 0 0-20 <br /> Total number of LCS compounds: 18 <br /> Total number of ME compounds: 0 <br /> Total number of ME compounds allowed: 1 <br /> LCS ME CL valldallon result: Pass <br /> RPD-Relative Percent Difference, GL-CantrolUrnit <br /> 7440 Lincoln Way, Garden Grove, CA 92841-1427 TEL:(714)895-5494 FAX: (714)894-7501 <br />