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' CALIFORNIA LABORATORY SERVICES <br /> ' 11/30/04 13:17 <br /> ENSR-Sacramento Project: Former Unocal 0187,437 E&t S Work'Hrdlockt 709 <br /> ' 10411 Old Placerville Rd., Suite 210 Project Number: 06940-325-100 COC#: 1, 2, 3 <br /> Sacramento,CA 95827-2508 Project Manager: Ben Heningburg <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Note <br /> U-1(CNK0709-01)Water Sampled: 11/17/0413:18 Received: 11/19/04 10:53 <br /> Di-isopropyl ether ND 0.50 µg/L I CN09034 11/19/04 11/19/04 EPA 8260B <br /> Ethyl tert-butyl ether ND 0.50 <br /> Methyl tert-butyl ether ND 0.50 " <br /> tert-Amyl methyl ether ND 0.50 " <br /> Tert-butyl alcohol ND 5.0 " <br /> ISurrogate: Toluene-d8 92,7% 72-125 " <br /> U-2(CNK0709-02)Water Sampled: 11/17/0412:44 Received: 11/19/04 10:53 <br /> ' Di-isopropyl ether ND 0.50 µg/L I CN09034 11/19/04 11/19/04 EPA 8260B <br /> Ethyl tert-butyl ether ND 0.50 <br /> �ethyl tert-butyl ether ND 0.50 " <br /> yl methyl ether ND 0.50 <br /> butyl alcohol ND 5.0 " <br /> ' Surrogate: Toluene-d8 92,6% 71-125 <br /> U-4(CNK0709-03)Water Sampled: 11/17/04 08:45 Received: 11/19/04 10:53 <br /> Di-isopropyl ether ND 0.50 µg/L l CN09034 11/19/04 11/19/04 EPA 8260B <br /> ' Ethyl tert-butyl ether ND 0.50 <br /> Methyl tert-butyl ether ND 0.50 " <br /> tcri-Amyl methyl ether ND 0.50 " <br /> Tert-butyl alcohol ND 5.0 <br /> Surrogate: Toluene-d8 92.2% 72-125 <br /> 1 U-5(CNK0709-04)Water Sampled: 11/17/04 09:28 Received: 11/19/0410:53 <br /> Di-isopropyl ether ND 0.50 µ&/L 1 CN09034 11/19/04 11/19/04 EPA 8260B <br /> Ethyl tert-butyl ether ND 0.50 " <br /> ' Methyl tert-butyl ether ND 0.50 " <br /> tert-Amyl methyl ether ND 0.50 " <br /> Tert-butyl alcohol ND 5.0 <br /> . ' Surrogate: Toluene-d8 92,1 % 72-125 <br /> 1 <br /> • <br /> 1 <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova, CA 95742 www.californialab-com 916-638-7301 Fax: 916-638-4510 <br />