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Page 30 of 48 <br /> 1 : <br /> eurof ins Quality Control - Spike/Spike Duplicate <br /> Calscience <br /> Conestoga-Rovers &Associates Date Received: 05/30/15 <br /> 6520 Corporate Drive Work Order: 15-05-2299 <br /> Indianapolis, IN 46278-2915 Preparation: T22.11.5. All <br /> Method: EPA 6010E <br /> Project: 085972-23A-5702 Page 5 of 8 <br /> Quality Contrci Sample ID Type Matrix Instrument Date Prepared Date Anaiyzed NISIVISD Batch Number <br /> 15-06.0116-1 Sample Aqueous ICP 7300 06103115 06/03115 20:25 150603SA6 <br /> 15.06.0116-1 Matrix Spike Aqueous ICP 7300 06/03/15 06103/15 20:31 150603SAG <br /> 15-06-0116-1 Matrix Spike Duplicate Aqueous lCP 7300 06103/15 06103/15 20:33 150603SA6 <br /> Parameter Sarni)le SpXe MS MS MSD MSD %Rec.CL RPD RPD CL Qualifiers <br /> Conc. Added Conc. %Rec. onc. %oRec. <br /> Arsenic ND 5.000 5.273 105 4.647 93 75-125 13 0-20 <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 />