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4D (701455 McDowell Blvd North, Ste D <br /> Sequoia Petaluma CA 94954 <br /> Analytical FAX <br /> 7) 792 1865 <br /> (707) 792-0342 <br /> Blaine Technical Services,Inc Project Shell Oil Co Sampled 2/11/99 <br /> 1680 Rogers Ave Project Number 1267 Country Club,Stockton/990211-K2 Received 2/16/99 <br /> San Jose,CA 95112 Project Manager Ann Pember Rp orted 4/9/99 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical-Petaluma <br /> Batch Date Date Surrogate Reporting <br /> Ana! a Number Prepared Analyzed Linuts Limit Result Units Notes* <br /> S-4 P902377-04 Water 3"4 <br /> Tert-amyl methyl ether 9030726 4/l/99 4/1/99 100 ND ug/l <br /> Tert-butyl alcohol 20 0 ND " <br /> Di-isopropyl ether 1 00 ND " <br /> 1,2-Dibromoethane(EDB) 0 500 ND " <br /> 1,2-Dtchloroethane 0 500 NO " <br /> Ethanol 100 NO " <br /> Ethyl tert-butyl ether 100 NO " <br /> Methyl tert-butyl ether 0 500 NO " <br /> Surrogate Dibromofluoromethane 860-118 980 % <br /> Surrogate 12-Dtchloroethane-d4 " " " 800-120 106 to <br /> Surrogate Toluene-d8 to " " 880-110 976 <br /> Surrogate 4-Bromofluorobenzene " " " 860-115 922 " <br /> S--5 P902377-05 Water 3,4 <br /> Tert-amyl methyl ether 9030726 4/1/99 4/1/99 1 00 ND ug/l <br /> Tert-butyl alcohol 200 NO <br /> Di-isopropyl ether 1 00 ND " <br /> 1,2-Dibromoethane(EDS) 0 500 ND " <br /> 1,2-Dtchloroethane 0 500 ND " <br /> Ethanol " " 100-ND " <br /> Ethyl ter-butyl ether 100 NO " <br /> Methyl tert-butyl ether 0 500 NO _ <br /> Surrogate Dibromofluoromethane 860-118 104 % <br /> Surrogate 12-Dtchloroethane-d4 to 800-120 III " <br /> Surrogate Toluene-d8 of 11 11 880-110 972 to <br /> Surrogate 4-Bromofluorobenzene " 860-115 906 to <br /> SS=6 P902377-06 Water 3.,4 <br /> Tert-amyl methyl ether 9030726 4/1/99 4/1199 l 00 ND ug/1 <br /> Tert-butyl alcohol 1. 200 NO " <br /> Di-isopropyl ether 1. too NO " <br /> 1,2-Dibromoethane(EDB) " 0 500 NO " <br /> 1,2-Dtchloroethane 0 500 ND " <br /> Ethanol 100 NO " <br /> Ethyl tert-butyl ether 1 00 NO " <br /> Methyl tert-butyl ether 0 500 ND " <br /> Surrogate Dibromofluoromethane " 860-118 101 % <br /> Surrogate 1 2-Dtchloroethane-d4 If <br /> 800-120 110 <br /> Surrogate Toluene-d8 IF to 880-110 952 <br /> Surrogate 4-Bromofluorobenzene 860-115 912 <br /> Sequoia Analytical-Petaluma *Refer to end ofrepori for text of notes and definitta <br /> APR 0 9 1999 <br /> Page 6 of l <br />