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Page 15 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: T22.11.5. All <br /> Method: EPA 6010B <br /> Project: Stockton AB Page 2 of 3 <br /> Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS Batch Number <br /> 097-05-006-7176 LCS Aqueous ICP 7300 03/05/14 03/07/14 18:29 140307LA3 <br /> Parameter Spike Added Conc. Recovered LCS%Rec. %Rec.CL Qualifiers <br /> Chromium 5.000 5.141 103 80-120 <br /> t <br /> N <br /> C <br /> N <br /> 0 <br /> O <br /> U <br /> 0 <br /> 3 <br /> m <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 />