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Sea/ Ola 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 1 404 N Wiget lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 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 /> eyuoia-Redwood City Project Met Mei Shin Sampled 3/19/99 <br /> 680 Chesapeake Drive Project Number 9903B91(Blaine) Received 3/30/99 <br /> Redwood City,CA 94063 Project Manager Mei Mei Shin Reported 4/1/99 <br /> Volatile Organic Oxygenated Compounds by EPA Method 8260A/Quahty 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 90301.47 Date Prepared 3130199 Extraction Method EPA 5030B FPM <br /> Blank 9030147-BLKI <br /> Ethanol 3/30/99 ND ug/l 3000 <br /> Tert-butyl alcohol 11 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 1,2-Drchloroethane-d4 500 494 760-114 988 <br /> Blank 9030147-BLK2 <br /> Ethanol 3/31/99 ND ug/l 3000 <br /> Tert-butyl alcohol ND 200 <br /> Methyl tert-butyl ether ND 200 <br /> Di-isopropyl ether ND " 200 <br /> Aik-yl tert-butyl ether ND 200 <br /> -amyl methyl ether ND 200 <br /> .arrogate 1,2-Drchloroethane-d4 500 508 760-114 102 <br /> LCS 9030147-BSI <br /> Methyl tert-bury] ether 3/30/99 Soo 534 ug/l 700-130 107 <br /> Surrogate 1,2-Dichloroethane-d4 11 500 52 7 760-114 105 <br /> LCS 9030147-13S2 <br /> Methyl tert-butyl ether 3/31/99 Soo 468 ug/1 700-130 93 6 <br /> Surrogate 12-Drchloroethane-d4 " 500 509 rr 760-114 102 <br /> Matrix Snake 9030147-MSI L903288-03 <br /> Methyl tert-butyl ether 3/30/99 500 401 986 ug/l 600-140 117 <br /> Surrogate 1 2-Drchloroethane-d4 it 500 528 ft 760-114 106 <br /> Matrix Spike Dun 9030147-MSD1 L903288-03 <br /> Methyl tert-butyl ether 3/30/99 500 40 1 944 ug/1 600-140 109 250 708 <br /> Surrogate 12-Drchloroethane-d4 500 531 760-114 106 <br /> uoia Analytical- San Carlos *Refer to end of report for text of notes and definitions <br /> Page 8 of 9 <br />