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680 Chesapeake Drive Redwood CRY CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia 404 N Wlget lane walnut Creek.CA 94598 (91S)988-9600 FAX(925)988-9673 <br /> e819 Striker Avenue Suite Sacramento CA 95834 (916)921-9600 FAX(916)9Zt-0100 <br /> 7:,F Analytical <br /> cL r 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 /> 11,quoia-Petaluma Project Scott Forbes Sampled 3111199 <br /> 1455 N McDowell Blvd,Suite D Project Number P903469 Received 3123199 <br /> Petaluma,CA 94954 Project Manager Scott Forbes Reported 4/6199 <br /> Sample Description P903469-03 <br /> Laboratory Sample Number L903210-02 <br /> Batch Date Date Specific Method/ Reporting <br /> Analyte Number Pr aced Analyzed Surrogate Limits Limit Result Units Notes* <br /> Sequoia Anal lcal-San Carlos <br /> Volatile Organic Comaounds by EPA Method 8260A <br /> Di-isopropyl ether 9030107 3125/99 3125199 200 ND ug/l <br /> Ethyl tert-butyl ether " 11200 ND " <br /> Methyl tent-butyl ether it 10 500 ND <br /> Tert-amyl methyl ether " " 2 00 ND „ <br /> Tert-butyl alcohol 100 ND " <br /> Surrogate 1 2-Dichloroethane-d4 760-114 95 6 <br /> Surrogate Toluene-d8 " 880-110 936 <br /> AMC <br /> luoia Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> Page 3 of 7 <br />