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Sequoia 1455 McDowefl BNd North Ste <br /> Petaluma,CA 849544 <br /> (707)792-1865 <br /> FAX 792-0342 <br /> Analytical <br /> www sequoiaquoialabs com <br /> Cambria Environmental Project Equiva Sampled 3/27/00 to 3130100 <br /> 270 Perkins St Protect Number 620 W Charter,Stockton Received 3131100 <br /> Sonoma,CA 95476 Project Manager Aubrey Cool Reported 4/17100 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analyt:cal=Petaluma <br /> Batch Date Date Surrogate Reporting <br /> Analyte Number Prepared Analyzed Limits Limit Result Units Nates* <br /> CPT-3W-49' P004023-40 Water 2 <br /> Tert-amyl methyl ether 0040053 415100 4/5/00 200 ND ug/l <br /> Tert-butyl alcohol 400 ND " <br /> Di-isopropyl ether " 200 ND <br /> 1,2-Dibromoethane(EDB) 100 ND " <br /> 1,2-Dichloroethane 100 ND " <br /> Ethyl tert-butyl ether " " 20 0 ND " <br /> Methyl tert-butyl ether 100 ND " <br /> Surrogate Dibromofluoromethane 860-118 107 % <br /> Surrogate 12-Dichloroethane-d4 800-120 970 " <br /> Surrogate Toluene-d8 " 880-110 998 <br /> CPT-3W-65' P004023-41 Water 2 <br /> Tert-amyl methyl ether 0040053 415100 4/5/00 200 ND ug/l <br /> Tert-butyl alcohol 400 ND <br /> Di-isopropyl ether 200 ND " <br /> 1,2-Dibromoethane(EDB) 100 ND " <br /> 1,2-Dichloroethane 100 ND " <br /> Ethyl tert-butyl ether " 200 ND " <br /> Methyl tert-butyl ether 100 ND " <br /> Surrogate—Dibromofluoromethane "-86 0-118T 107 % <br /> Surrogate 1 2-Dichloroethane-d4 11 800-120 972 " <br /> Surrogate Toluene-d8 880-110 984 " <br /> CPT-3W-74' P004023-42 Water 2 <br /> Tert-amyl methyl ether 0040053 4/5/00 4/5/00 100 ND ug/l <br /> Tcrt-butyl alcohol 2000 ND " <br /> Di-isopropyl ether 100 ND " <br /> 1,2-Dibromoethane(EDB) 50 0 ND " <br /> 1,2-Dichloroeth2ne 500 154 " <br /> Ethyl tert-butyl ether 100 ND " <br /> Methyl tert-butyl ether 500 ND <br /> Surrogate Dibromofluoromethane 860-118 104 % <br /> Surrogate 1,2-Dichloroethane-d4 " " " 800-120 926 " <br /> Surrogate Toluene-d8 880-110 100 " <br /> CPT-3W-83' P004023-43 Water <br /> Tert-amyl methyl ether 0040053 4/5/00 415100 100 ND ug/l <br /> Tert-butyl alcohol " 200 ND " <br /> Di-isopropyl ether 1 00 ND " <br /> 1,2-Dibromoethane(EDB) " 0 500 ND " <br /> 1,2-Dichloroethane 0 500 ND " <br /> Sequoia Analytical-Petaluma *Refer to end of report for text of notes and definitions <br /> Page 13 of 22 <br />