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CHROMALAB, INC. <br /> Environmental Services(SDB) <br /> January 22, 1999 Submission #: 9901168 <br /> URS GREINER <br /> Atten: Nate Johnson <br /> Project: ARCH RD Project#: 43-0006672 . 00 . 200 <br /> Received: January 15, 1999 <br /> re: Blank spike and duplicate report for Lead analysis . <br /> Method: EPA 3050A/7420A <br /> Matrix: SOIL <br /> Lab Run#: 16998 Analyzed: January 18 , 1999 <br /> Spike <br /> Spike Amount Amount Found Spike Recov % <br /> BSP Dup SSP Dup BSP Dup Control % RPD <br /> Analyte (mg/Kd) (mg/Kcr) M M Limits RPD Lim <br /> LEAD 250 250 253 249 101 99 . 6 85-115 1 .40 20 <br /> r <br /> BS Smpt #: 225439 <br /> BSD Smpt #: 225440 1220 Quarry Lane • Pleasanton, California 94566-4756 <br /> (925) 484-1919 • Facsimile (925) 484-1096 <br /> Federal ID#68-0140157 <br />