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Page 14 of 21 <br /> aiscience <br /> nvironmental Quality Control - LCS <br /> aboratories, Inc. <br /> ICL Performance Products LP Date Received: 02/26/14 <br /> 10667 Jersey Blvd. Work Order: 14-02-1802 <br /> Rancho Cucamonga, CA 91730-5110 Preparation: EPA 3050B <br /> Method: EPA 6010B <br /> Project: Stockton AB Page 1 of 3 <br /> Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS Batch Number <br /> 097-01-002-18089 LCS Solid ICP 7300 02/27/14 02/28/14 19:36 1402271-01 <br /> Parameter Spike Added Conc. LCS%Rec. %Rec.CL ME CL Qualifiers <br /> Recovered <br /> Antimony 25.00 25.16 101 80-120 73-127 <br /> Arsenic 25.00 24.81 99 80-120 73-127 <br /> Barium 25.00 26.02 104 80-120 73-127 <br /> Beryllium 25.00 25.16 101 80-120 73-127 <br /> Cadmium 25.00 25.94 104 80-120 73-127 <br /> Chromium 25.00 25.99 104 80-120 73-127 <br /> Cobalt 25.00 28.33 113 80-120 73-127 <br /> Copper 25.00 26.25 105 80-120 73-127 <br /> Lead 25.00 25.69 103 80-120 73-127 <br /> Molybdenum 25.00 25.60 102 80-120 73-127 <br /> Nickel 25.00 26.96 108 80-120 73-127 <br /> Selenium 25.00 24.31 97 80-120 73-127 <br /> Silver 12.50 13.18 105 80-120 73-127 0 <br /> U <br /> Thallium 25.00 27.36 109 80-120 73-127 0 <br /> Vanadium 25.00 25.05 100 80-120 73-127 <br /> Zinc 25.00 25.69 103 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 Limits <br /> 7440 Lincoln Way,Garden Grove,CA 92841-1427 • TEL:(714)895-5494 • FAX:(714)894-7501 <br />