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Page 6 of 18 <br /> alscience <br /> ;Environmental <br /> Quality Control - Spike/Spike Duplicate <br /> IF aboratorees, Inc. <br /> Shell Oil Pipeline Company LP Date Received: 05/06/09 <br /> P.O. Box 2648 Work Order No: 09-05-0367 <br /> Houston, TX 77252-2648 Preparation: EPA 3050B <br /> Method: EPA 601 OB <br /> Proiect 25705 Patterson Pass Rd., Tracy,'CA . <br /> - <br /> Date Date IIIIIIIIII MS/MSD Batch <br /> L <br /> Quality Control Sample ID Matrix Instrument prepared Analyzed Number <br /> 09 95.9844-1 Solid <br /> ICP.5300 05/11109 05111109 090611t's01 <br /> Parameter MS° REC MSD%REC a9'REC CL RPA RPD CL qualifiers f <br /> Antimony 38 29 50-116 29 0-20 3,4 1 <br /> Arsenic 100 94 .75-125 5 0-20 <br /> Barium 4X 4X 75-125 4X 0-20 Q <br /> Beryllium 98 97 75-125 2 0-20 <br /> Cadmlum 98 96 75-125 3 0-20 <br /> Chromium 103 100 75-125 1 0-20 <br /> Cobalt 100 96 75-125 3 0 20 <br /> Copper 106 102 75-126 2 0-20 <br /> Lend 103 95 75-125 6 0-20 <br /> I Molybdenum 88 79 75-125 10 0-20 <br /> Nickel 112 102 75-125 3 0-20 <br /> Selenium 94 90 75-125 5 0-20 <br /> Silver 99 97 75-125 2 0-20 <br /> Thallium 96 95 75-125 2 0-20 <br /> Venadlum 100 101 75-125 1 0-20 <br /> One 105 104 75-125 0 0-20 <br /> ;I <br /> 4 <br /> 1 ' <br /> l <br /> 3 <br /> RPD-Relative Percent Dilrerence, CL-Control LImR <br /> 7440 LinColn Way, Garden Grove, CA 92841-1427 , TEL:(714)895-5494 • FAX: (794)894-7541 <br />