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M CHROMALAB, INC. <br /> Environmental Services(SDB) <br /> ' February 10, 1999 Submission #: 9902051 <br /> MURS GREINER <br /> Atten: Hollis Phillips <br /> Project: ARCH RD Project#: 43-00066762 . 004000 <br /> Received: February 3 , 1999 <br /> re: Matrix Spike report for Lead analysis . <br /> Method: EPA 3050A/7420A <br /> Matrix: SOIL Extracted: February 4 , 1999 <br /> Lab Run#: 17255 Instrument: Analyzed: February 4, 1999 <br /> Spiked <br /> Sample Spike Amt Amt Found Spike Recov % <br /> Amount MS MSD MS MSD MS MSD Control % RPD <br /> Analyte (m4/Kc7) (mv/Kcr) (mQ/Kcr) (%) (%) Limits RPD Lim <br /> fLEAD N.D . 250 250 245 246 98 . 0 98 . 4 80-120 0 .40 20 <br /> Sample Spiked: 227265 <br /> Submission #: 9902032 <br /> Client Sample ID: SB5-0 . 5S <br /> MS Smpl #: 227445 1220 Quarry Lane • Pleasanton, California 94566-4756 <br /> MSD Smpl #: 227446 (925) 484-1919 • Facsimile (925) 484-1096 CICMSPK1229 ACHFIS 10-Feb-9906: <br /> Federal ID #68-0140157 <br />