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al Road <br /> Sequoia San Carlo5s,,CA 94070-4111 <br /> 1 (650) 232-9600 <br /> Analytical FAX(650) 232-9612 <br /> North Creek Analytical-Bothell Project - Sampled 3/23/00 <br /> 18939120th Ave NE,Suite 101 Project Number 3000535 Received. 3/28/00 <br /> Bothell,WA 98011 Project Manager Kirk Gendron Reported 4/4/00 <br /> Emil <br /> Date Spike Sample QC Reporting Lmut Recov RPD RPD <br /> Anal Anal Leve] Result Result Units Recov Limits % Limit % Notes* <br /> Batch 00301.57 Date Pre ared• 3130!00 Extraction Method- EPA 5030B fP <br /> Blank 0030157-BLK1 <br /> Ethanol 3/30/00 ND ug/l 1000 <br /> Tert-butyl alcohol ND 100 <br /> Methyl tert-butyl ether " ND 2.00 <br /> Dl isopropyl ether ND 200 <br /> Ethyl tent-butyl ether ND 200 <br /> Tert-amyl methyl ether " ND " 2.00 <br /> Surrogate 1,2-Dichloroethane-d4 500 494 760-114 988 <br /> LCS 0030157-BSI <br /> Methyl tmt-butyl ether 3/30/00 500 470 ug/l 700-130 940 <br /> Surrogate 1,2 Dichloroethane-d4 500 489 760-114 978 <br /> 0030157-MSI L003242-01 <br /> y1 tert-butyl ether 3/30/00 500 ND 403 ug/l 600-140 80.6 <br /> Surrogate 42-Dichloroethane-d4 " Soo 489 760-114 978 <br /> Matrix Spike Dug 0030157-MSDI L003242-01 <br /> Methyl Cert-butyl ether 3/30/00 500 ND 426 ug/l 600-140 852 250 555 <br /> Surrogate 1,2-Dlchloroethane-d4 500 478 760-114 956 <br /> l <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> Page 3 of 4 <br />