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680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 2tlfl � 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical <br /> 619 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> J�J 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> • <br /> Sequoia-RC(Subbed In) Protect Kayvon Kimyai Sampled 2/23/99 to 2125/99 <br /> 680 Chesapeake Dr Protect Number 9902E24/E25 Received 3/3199 <br /> Redwood City,CA 94063 Project Mana er Kaymprnyaa Reported 3112199 <br /> Volatile Organic Compounds by EPA Method 8260B/Quahty Control <br /> Sequoia Analytical-Petaluma <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Anal a Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Blank continued 9030221-BLK1 <br /> Ethanol 3/9/99 ND mg/kg 0200 <br /> Ethyl tent-butyl ether ND 000500 <br /> Methyl tert-butyl ether ND 000500 <br /> Surrogate Dibromofluoromethane 1100500 00477 800-120 954 <br /> Surrogate 1,2-Dichloroethane-d4 1100500 00446 800-120 892 <br /> Surrogate Toluene-d8 of00500 00500 810-117 100 <br /> Surrogate 4-Bromofluorobenzene or 00500 00502 NO740-121 100 <br /> Blank 9030221-BLK2 <br /> Tert-amyl methyl ether 3/10/99 ND mg/kg 000500 <br /> Tert-butyl alcohol ND 0 100 <br /> Di-isopropyl ether ND 000500 <br /> 1,2-Dibromoethane(EDB) ND 000500 <br /> wichloroethane " ND " 000500 <br /> of ND 0200 <br /> Ethyl tert-butyl ether ND 000500 <br /> Methyl tert-butyl ether _ ND 000500 _ <br /> Surrogate Dibromofluoromethane 1100500 00483 800-120 966 <br /> Surrogate 1,2-Dach1oroe1hane-d4 00500 00444 800-120 88 8 <br /> Surrogate Toluene-d8 00500 00520 810-117 104 <br /> Surrogate 4-Bromofluorobenzene 00500 00520 740-121 104 <br /> Blank 9030221-BLK3 <br /> Tert-amyl methyl ether 3/11199 ND mg/kg 000500 <br /> Tert-butyl alcohol " ND 0100 <br /> Di-isopropyl ether ND 000500 <br /> 1,2-Dibromoethane(EDB) ND 000500 <br /> 1,2-Drchloroethane ND 000500 <br /> Ethanol NO ND 1. 0200 <br /> Ethyl tert-butyl ether ND 000500 <br /> Methyl tert-butyl ether ND 000500 <br /> ISurrogate Dibromofluoromethane 00500 00500 800-120 100 <br /> Surrogate 1,2-Dachloroethane-d4 00500 00516 800-120 103 <br /> Surrogate Toluene-0 00500 00495 810-117 990 <br /> Surrogate 4-Bromofluorobenzene 00500 00516 740-121 103 <br /> LCS 9030221-BS1 <br /> Methyl tert-butyl ether 3/9/99 00500 00455 mg/kg 700-130 910 _ <br />` Surrogate Dibromofluoromethane to00500 00507 It800-120 101 <br /> If Surrogate 1,2-Dachloroethane-d4 IF 00500 00494 IN800-120 988 <br /> 0 t Toluene-d8 to00500 00467 IF810-117 934 <br /> Sequoia Analytical-Petaluma *Refer to end of report for text of notes and definitions <br /> i <br /> Page 20 of 22 <br /> I <br />