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Sequoia 1455 McDowell Blvd North,Ste D <br /> Petaluma,CA 94954 <br /> 4 (707) 792-1865 <br /> ID <br /> IAnalytical FAX(707) 792-0342 <br /> ISan <br /> ne Technical Services,Inc Project Shell Oil Co Sampled 2111199 <br /> Rogers Ave Project Number 1267 Country Club,Stockton 1990211-K2 Received 2/16/99 <br /> Jose,CA 95112 Project Manager Ann Pember Reported 419199 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical-Petaluma <br /> Batch Date Date Surrogate Reporting <br /> [Analyte Number Pre aced Analy2ed Limits Limit Result Units Notes* <br /> S-1 P902377-01 Water 3 4 <br /> Tert-amyl methyl ether 9030726 4/1199 411199 500 ND ug/l <br /> Tert-butyl alcohol 100 ND " <br /> Di-isopropyl ether Soo 299 " <br /> 1,2-Dibromoethane(EDB) 250 ND " <br /> 1,2-Dichloroethane 250 4 55 " <br /> Ethanol 500 ND " <br /> Ethyl tert-butyl ether 500 ND " <br /> Methyl tert-butyl ether 250 ND " <br /> Surrogate Dtbromofluoromethane of " " 860-118 100 % <br /> Surrogate 1,2-Dichloroethane-d4 " 800-120 105 <br /> Surrogate Toluene-d8 0' 880-110 958 " <br /> Surrogate 4-Bromofluorobenzene toor 860-115 904 <br /> S-2P902377-02 Water 3,4,5 <br /> 0amyl methyl ether 9030726 4/1/99 411199 100 ND ug/I <br /> --butyl alcohol 2000 ND <br /> Di-isopropyl ether 100 ND <br /> 1,2-Dibromoethane(EDB) 500 ND " <br /> 1,2-Dichloroethane Soo ND " <br /> Ethanol 10000 ND " <br /> Ethyl tert-butyl ether 100 ND " <br /> Methyl tert-butyl ether 500 ND <br /> Surrogate Dtbromofluoromethane " 860-118 94 6 % <br /> Surrogate 1 2-Dichloroethane-d4 to " 800-120 102 " <br /> Surrogate Toluene-d8 11880-110 950 " <br /> Surrogate 4-Bromofluorobenzene If of860-115 906 IF <br /> S-3 P902377-03 Water 3,4 <br /> Tert-amyl methyl ether 9030726 4/1/99 411199 500 ND ug/l <br /> Tert-butyl alcohol 100 ND " <br /> Di-isopropyl ether 100 161 " <br /> 1,2-Dibromoethane(EDB) 250 ND " <br /> 1,2-Dichloroethane 250 341 " <br /> Ethanol 500 ND " <br /> Ethyl tert-butyl ether 5 00 ND " <br /> Methyl tert-butyl ether 250 ND " <br /> Surrogate Dtbromofluoromethane 860-118 94 4 <br /> Surrogate 1,2-Dichloroethane-d4 800-120 980 <br /> Surrogate Toluene-d8 880-110 954 <br /> Surrogate 4-Bromofluorobenzene 860-115 902 <br /> Am <br /> uoia Analytical-Petaluma *Refer to end of report jar text of notes and definitions <br /> APR 0 9 1999 <br /> Page 5 of 1 <br />