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Page 27 of 48 <br /> u I'Ofl nS Quality Control - Spike/Spike duplicate <br /> calscterlct <br /> Conestoga-Rovers &Associates Date Received: 05/30/15 <br /> 6520 Corporate Drive Work Order: 15-05-2299 <br /> Indianapolis, IN 46278-2915 Preparation: EPA 35506 <br /> Method: EPA 8015E (M) <br /> Project: 085972-23A-5702 Page 2 of 8 <br /> Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number <br /> COMP(RWR-5702) Sample Solid GC 46 06/01/15 0610211511:47 150601314 <br /> COMP(RWR-5702) Matrix Spike Solid GC 46 06/01/15 06102/35 05:04 150601514 <br /> COMP(RWR-5702) Matrix Spike Duplicate Solid GC 46 06/01115 06102115 05:22 150601514 <br /> Parameter Sample SRike MS INS MSD MSD %Rec.CL RPD RPD CL Qualifiers <br /> Conc. Added Conc. %Rec. Conc. %Rec. <br /> TPH as Motor Oil 3490 400.0 4341 213 4915 356 64-130 12 0-15 3 <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 />