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Page 12 of 21 <br /> alscience <br /> nvironmental Quality Control - Laboratory Control Sample ' <br /> NEW aboratories Inc. Yf <br /> Shell Oil Pipeline Company LP Date Received: NIA <br /> P.O. Box 2648 Work Order No: 08-10-1847 <br /> Houston, TX 77252-2648 Preparation: EPA 3050B <br /> Method: EPA 6010B <br /> Project: 25705 Patterson Pass Rd., Tracy, CA <br /> Quality Control Sample ID Matrix Instrument Date Analyzed Lab File ID LCS Batch Number <br /> 097-01-00241,656 Solid ICP 5300 10123/08 081023-1-03 0810231-03 <br /> Parameter Conc Added Conc Recovered LCS%Rec %Rec CL ME CL Qualifiers <br /> Antimony 25,0 24.1 96 80-120 73-127 <br /> Arsenic 25.0 22.0 88 80-120 73-127 <br /> Barium 25.0 25.4 102 80-120 73-127 <br /> Beryllium 25.0 23.7 95 80-120 73-127 <br /> Cadmium 25.0 24.8 99 80-120 73-127 <br /> Chromium 25.0 24.2 97 80-120 73-127 <br /> Cobalt 25.0 25.5 102 80-120 73-127 <br /> Copper 25.0 243 97 80-120 73-127 <br /> Lead 25.0 25.2 101 80-120 73-127 <br /> Molybdenum 25.0 24.7 99 80-120 73.127 <br /> Nickel 25.0 25.4 102 80-120 73-127 <br /> Selenium 25.0 21.0 84 80-120 73-127 <br /> Silver 12.5 11.9 95 80-120 73-127 <br /> Thallium 25.0 24.0 96 80-120 73-127 <br /> Vanadium 25.0 24.0 96 80-120 73-127 <br /> Zinc 25.4 24.9 100 80-120 73-127 <br /> Total number of LCS compounds: 16 <br /> Total number of ME compounds: 0 <br /> Total number of ME compounds allowed: 1 <br /> LCS ME CL validation result: Pass <br /> RPD-Relative Percent Difference, CL-Control Limit <br /> 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:{714)895-5494 . FAX: (7'14)894-7501 <br />