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Page 12 of 21 <br /> aiscience <br /> nvironmental Quality Control - Spike/Spike Duplicate <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 7471A Total <br /> Method: EPA 7471A <br /> Project: Stockton AB Page 3 of 3 <br /> Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number <br /> 14-02-1809-1 Sample Solid Mercury 02/27/14 02/27/1413:11 140227SO4 <br /> 14-02-1809-1 Matrix Spike Solid Mercury 02/27/14 02/27/14 13:13 140227SO4 <br /> 14-02-1809-1 Matrix Spike Duplicate Solid Mercury 02/27/14 02/27/14 13:15 140227SO4 <br /> Parameter Sample Spike MS MS MSD MSD %Rec.CL RPD RPD CL Qualifiers <br /> Conc. Added Conc. %Rec. Conc. %Rec. <br /> Mercury ND 0.8350 0.7521 90 0.4805 58 71-137 44 0-14 3,4 <br /> t <br /> 0 <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 />