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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 PAX(650)364-9233 <br /> 404 N Wiget lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921 0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 1551 Industrial Road San Carlos,CA 94070-4111 (650)232-9600 FAX(650)232-9612 <br /> Blaine Tech Services Project Chevron(3) Sampled 3/5/99 <br /> 1680 Rogers Avenue Project Number Chevron 9-3232,990305-J1 Received 3/8/99 <br /> San Jose,CA 95112 Project Manager Christine Lillie R orted 3/26/99 <br /> Volatile Qrgax�lc Qarygenated Compounds by EPA Method 8260A/Qus[tti Control <br /> Sequoia Analytical ,San Carlos <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 9030030 Date Prepared 3/9199 Extraction Method EPA 5030B FP/T1 <br /> Blank 9030030-BLKI <br /> Ethanol 3/10199 ND ug/l 3000 <br /> Tert-butyl alcohol it ND 200 <br /> Methyl tert-butyl ether " ND 200 <br /> Di-isopropyl ether ND 200 <br /> Ethyl tert-butyl ether ND 200 <br /> Tert-amyl methyl ether ND 200 <br /> Surrogate 12-Dichloroethane-d4 500 490 760-114 980 <br /> Blank 9030030-BLK2 <br /> Ethanol 3/10199 ND ug/1 3000 <br /> Tert-butyl alcohol ND 200 <br /> Methyl Cert-butyl ether ND 200 <br /> Di-isopropyl ether ND 200 <br /> 01 tert-butyl ether ND '' 200 <br /> amyl methyl ether ND 200 <br /> Surrogate 12-Dichloroethane-d4 500 494 760-114 988 <br /> Blank 9030030-BLK3 <br /> Ethanol 3/11/99 ND ug/1 3000 <br /> Vert-butyl alcohol ND 200 <br /> Methyl tert-butyl ether ND 2 00 <br /> Di-isopropyl ether ND 2 00 <br /> Ethyl tent-butyl ether ND 200 <br /> Tert-amyl methyl ether ND 200 <br /> Surrogate 1,2-Dichloroethane-d4 500 470 760-114 940 <br /> LCS 9030030-BS 1 <br /> Methyl tert-butyl ether 3/10/99 500 470 ug/1 700-130 940 <br /> Surrogate 12-Dtchloroethane-d4 f, 500 480 760-114 960 <br /> LCS 9030030-BS2 <br /> Methyl tert-butyl ether 3/10/99 500 516 ug/l 700-130 103 <br /> Surrogate 12-Dtchloroethane-d4 0500 494 760-114 98 8 <br /> LCS 9030030-BS3 <br /> Methyl tert-butyl ether 3111/99 500 506 ug/l 700-130 101 <br /> Surrogate 12-Dtchloroethane-d4 11500 471 760-114 942 <br /> _Matrix Spike 9030030-MSI L903058-01 <br /> Methvl ten-butyl ether 3/10/99 500 ND 49 5 ug/l 600-140 990 <br /> ,qWoia Analyt:cal-San Carlos *Refer to end of report for text of notes and defint-to ns <br /> page 8 of 10 <br />