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1455 McDowell Blvd North Ste D <br /> ma CA 9954 <br /> Sequoia Petal <br /> (707} 92-1865 <br /> FAX(707)792-0342 <br /> Iwo- Analytical www sequotalabs com <br /> 0 <br /> Cambria Environmental Project Equrva Sampled 3127/00 to 3130/00 <br /> 270 Perkins St Pi oject Number 620 W Charter,Stockton Received 3/31/00 <br /> Sonoma,CA 95476 Project Mana er Aubrey Cool Reported 4/17/00 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical-Petaluma <br /> Batch Date Date Surrogate Reportmg <br /> lAnalyte_ Number Prepared Analyzed Ltrrnts Limit Result Units Notes* <br /> CPT-3W-83'(continued) P004023-43 Water <br /> Ethyl tert-butyl ether 0040053 4/5/00 4/5100 1 00 ND ug/l <br /> Methyl tert-butyl ether 0 500 ND I. <br /> _ <br /> Surrogate Dibromofluoromethane 860-118 104 % <br /> Surrogate 1 2-Drchloroethane-d4 to800-120 978 <br /> Surrogate Toluene-d8 880-110 990 <br /> CPT-4W-47' P004023-44 Water 2 <br /> Tert-amyl methyl ether 0040079 4/5/00 4/5/00 400 ND ug/l <br /> Tert-butyl alcohol 800 ND " <br /> Di-isopropyl ether 40 0 ND " <br /> 1,2-Dtbromoethane(EDB) 200 ND " <br /> 1,2-Dichloroethane 200 ND " <br /> Ethyl tert-butyl ether 400 ND " <br /> 10ethyl tert-butyl ether 200 294 <br /> rrogate Dibromofluoromethane 860-118 962 % <br /> swrogate 12 Dichloroethane-d4 800-120 940 <br /> Surrogate Toluene-d8 to880-110 992 <br /> CPT-4W-66' P004023-45 Water 2 <br /> Tert-amyl methyl ether 0040079 416100 4/6/00 200 ND ug/1 <br /> Tert-butyl alcohol 400 ND " <br /> Dr-isopropyl ether 200 ND " <br /> 1,2-Dtbromoethane(EDB) 10 0 ND " <br /> 1,2-Drchloroethane 100 498 " <br /> Ethyl tert-butyl ether 200 ND <br /> Methyl tert-butyl ether ___ 100 ND <br /> Surrogate Dibromofluoromethane 860-118 996 % <br /> Surrogate 1,2-Dichloroethane-d4 800-120 898 " <br /> Surrogate Toluene-d8 880-110 105 " <br /> CPT4W-74' P004023-46 Water 2 <br /> Tert-amyl methyl ether 0040079 4/6100 4/6100 200 ND ug/l <br /> Tert-butyl alcohol 400 ND " <br /> Di-isopropyl ether 200 ND " <br /> 1,2-Drbromoethane(EDB) 100 ND " <br /> 1,2-Dichloroethane 100 17 6 " <br /> Ethyl tert-butyl ether " 200 ND " <br /> Methyl tert-butyl ether _ _ _ __ _ _ 100 mm ND <br /> Surrogate Drbromofluoromethane 860-118 971 % <br /> Surrogate 1 2-Drchloroethane-d4 to " " 800-120 906 " <br /> rrogate Toluene-d8 880-110 100 " <br /> equora Analytical-Petaluma *Refer to end of report for text ofnotes and definitions <br /> Page 14 of 22 <br />