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Sqe uoia 684 I-Ioeake"live <br /> Redwood City CA 940 ) (650)364-9600 FAX(650)364-9233 <br /> �] 404 145 N Wlget LanenuWalnut 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 /> 5 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 Pro3ect Kayvan Kimyai Sampled 2/26/99 <br /> 680 Chesapeake Drive Project Number 9903085-(Cambria) Received 3/3/99 <br /> Redwood City,CA 94063 Project Mane er K"yan Kim ai Reported 3/16/99 <br /> bate Spike Sample QC Retorting Limit Recov RPD RPD <br /> Arial Analyzed Level Result Result Units Recov Limits % Limit IN, Notes* <br /> Batch-_9030010 Date Prepared 313/99 Extraction Method EPA 5030B IPITI <br /> Blank X030010-BLK1 <br /> Ethanol 3/3/99 ND 119/1 3000 <br /> Tert-butyl alcohol ND 200 <br /> Methyl tert-butyl ether ND " 200 <br /> Di-isopropyl ether It ND - 200 <br /> Ethyl tert-butyl ether ND 200 <br /> Tert-amyl methyl ether ND i, 200 <br /> Surrogate 1,2-Dichloroethane-& " 500 511 " 760-114 102 <br /> Blank 9030010-BLK2 <br /> Ethanol 3/4/99 ND 119/1 3000 <br /> Tert-butyl alcohol ND 200 <br /> Methyl tert-butyl ether ND 200 <br /> Di-isopropyl ether ND 200 <br /> tent-butyl ether ND '+ 200 <br /> 2 methyl ether ND 200 <br /> Surrogate 1,2-Dichloroethaned4 500 535 760-114 107 <br /> LOS 9030010-BS1 <br /> Methyl tert-butyl ether 3/3/99 538 ug/l 700-130 <br /> Surrogate 1,2 Dichloroethane-0 " 500 548 " 760-114 110 <br /> LCS 9030010-BS2 <br /> Methyl tert-butyl ether 3/4/99 500 516 ug/l 700-130 103 <br /> Surrogate 1,2-Drchloroethane-d4 NSoo 526 760-114 105 <br /> Matrix Spike 9030010-MS1 L903019-03 <br /> Methyl tert-butyl ether 3/3/99 500 122 163 11g/1 600-140 820 <br /> Surrogate 1,1 Dichloroethane-d4 N 500 504 760-114 101 <br /> Matrix Spike Dap 9030010-MSDI L903019-03 <br /> Methyl tert-butyl ether 3/3/99 500 122 174 u9/1 600-140 104 250 23.7 <br /> Surrogate 1,2-Drch1oroethane-d4 " 500 510 760-114 102 <br /> ora Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> ,pr Page 10 of 1 1 <br />