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Sequoia <br />,!D— <br />Analytical <br />ler-Ryan -'Dublin ' <br />s 6747 Sierra Court, Suite J <br />Dublin, CA 94568 <br />Attention Barbara Sieminskl <br />Analyte <br />680 Chesapeake Drive <br />Redwood City CA 94063 <br />404 N Wiget Lane <br />Walnut Creek. CA 94598 <br />819 Striker Avenue Suite 8 <br />Sacramento CA 95834 <br />1455 McDowell Blvd North Ste D <br />Petaluma. CA 94954 <br />Client Project ID Chevron #9-5775, Lodi <br />Sample Descnpt Sod, MW3-64 5 <br />Analysis Method EPA 8260 <br />Lab Number 902-0877 <br />OXYGENATED COMPOUNDS (EPA 8260) <br />Detection Limit <br />lig/Kg <br />(650)364-9600 <br />(925)988-9600 <br />(916)921-9600 <br />(707) 792-1865 <br />Sampled <br />Relogged <br />Analyzed <br />Reported <br />FAX (650) 364-9133 <br />FAX (925) 988-9673 <br />FAX (916) 9 21 - 0100 <br />FAX (707) 792-0342 <br />Jan 26, 1999 <br />Feb 10, 1999 <br />Feb 18, 1999 <br />Mar 1, 1999 <br />Sample Results <br />pg/Kg <br />Ethanol <br />25,000 <br />N D <br />t -Butanol <br />5,000 <br />N D <br />Methyl t -Butyl Ether (MTBE) <br />100 <br />N D <br />Di -Isopropyl Ether (DIPS) <br />100 <br />N D <br />Ethyl t -Butyl Ether (ETBE) <br />100 <br />N D <br />t -Amyl Methyl Ether (TAME) <br />100 <br />N D <br />Surrogates <br />Dlbromofluoromethane <br />1,2-Dlchloroethane-d4 <br />• <br />Control Limrt % <br />50 150 <br />50 150 <br />Analytes reported as N D were not present above the stated lima of detection <br />SEQUOIA ANALYTICAL, #1271 Please Note <br />" Past Holding Time (2/18/99) <br />lianne Fegley <br />Project Manager <br />% Recovery <br />105 <br />97 <br />9020875 GET <2> <br />