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CALIFORNIA LABORATORY SERVICES <br /> 08/30/04 09:43 <br /> ENSR-Sacramento Project: Former Unocal 0187,4371JFLMin�rlv�rSe cctt �711 <br /> 10411 Old Placerville Rd.,Suite 210 Project Number: 06940-325-100 S W ttii #:�-l�t , <br /> Sacramento,CA 95827-2508 Project Manager: Ben 1. Heningburg COC#: 1,2,3 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Note ' <br /> U-9(CNH0711-09)Water Sampled: 08/19/04 11:22 Received:08/20/04 18:17 <br /> Di-isopropyl ether ND 0.50 gg/L 1 CN06537 08/24/04 08/24/04 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 93.3% 72-125 " <br /> U- 10(CNH0711-10)Water Sampled:08/19/04 15:58 Received: 08/20/04 18:17 <br /> Di-isopropyl ether ND 0.50 µg/L I CN06537 08/24/04 08/24/04 EPA 8260E <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 97.5% 72-125 " <br /> U- 11(CNH0711-11)Water Sampled: 08/19/04 12:57 Received: 08/20/04 18:17 <br /> Di-isopropyl ether ND 0.50 pg/L I CN06537 08/24/04 08/24/04 EPA 8260B <br /> Ethyl tent-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 94.8% 72-125 <br /> U- 12(CNH0711-12)Water Sampled: 08/19/04 13:41 Received: 08/20/04 18:17 , <br /> Di-isopropyl ether 1.4 0.50 pg/L I CN06577 08/25/04 08/25/04 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 963 % 72-125 <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 />