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680 Chesapeake Drive Redwood Clty CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia 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)911-0100 <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 /> Sequoia-Redwood City Project Kayvan Kimyai Sampled 2/24/99 <br /> 680 Chesapeake Drive Project Number 9902D75 (Blaine Tech) Received 3/l/99 <br /> Redwood City,CA 94063 Project Manager Kayvan K3myai Reported 3/11/99 <br /> Volatile Organic Oxygenated Compounds by EPA Method 8260A/Quality Control <br /> Segno><a Analytical-San Carlos <br /> Date Spike Sample QC Reporting Linut Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 9020007 Date Prepared 3/1199 Extraction Method EPA 5030B fP/T1 <br /> Blank 9020007-BLKI <br /> Ethanol 3/1/99 ND ug/l 3000 <br /> Tert-butyl alcohol ND 200 <br /> Methyl tert-butyl ether ND 200 <br /> Di-isopropyl ether ND 200 <br /> Ethyl tert-butyl ether ND " 2 00 <br /> Tert-amyl methyl ether ND 200 <br /> Surrogate 12-Dtchloroethane-d4 50 0 510 760-114 102 <br /> Blank 9020007-BLK2 <br /> Ethanol 3/2/99 ND ug11 3000 <br /> Tert-butyl alcohol ND " 200 <br /> Methyl tert-butyl ether ND 200 <br /> VD-isopropyl ether ND 2 00 <br /> tert-butyl ether " ND 2 00 <br /> amyl methyl ether ND 200 <br /> Surrogate 1,2-Dichloroethane-d4 500 529 760-114 106 <br /> LCs 9020007-BSI <br /> Methyl tert-butyl ether 3/1/99 500 _ 490 ug/l 700-130 98 0 <br /> Surrogate 1 2-Dichloroethane-d4 11Soo 520 760-114 104 <br /> LCS 9020007-BS2 <br /> Methyl Cert-butyl ether 3/2/99 500 539 ug/1 700-130 108 <br /> Surrogate 12-Dtchloroethane-d4 10500 537 760-114 107 <br /> Matrix Spike 9020007-MSI L903006-02 <br /> Methyl tert-butyl ether 3/1/99 500 550 540 ug/l 600-140 97 0 <br /> Surrogate 1,2-Dtchloroethane-d4 11Soo SI 0 760-114 10.2 <br /> Matrix Spike Dup 9020007-MSD1 L903006-02 <br /> Methyl tert-butyl ether 3/1/99 50_0_ 550 _ 590 ug/l 600-140 105 25 0 7 92 <br /> Surrogate 12-Dtchloroethane-d4 500 520 760-114 104 <br /> oia Analytical- Sart Carlos - *Refer to end of report for text of notes and definitions <br /> Page 10 of 1 1 <br />