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1 <br /> ' CALIFORNIA LABORATORY SERVICES <br /> ' 08/30/04 09:43 <br /> ENSR-Sacramento Project: Former Unocal 0187,437 East W rMdeoCP5f4711 <br /> 10411 Old Placerville Rd., Suite 210 Project Number. 06940-325-100 COC#: 1,2,3 <br /> Sacramento,CA 95827-2508 Project Manager: Ben 1.Heningburg <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Note <br /> 'U-21 (CNH0711-21)Water Sampled:08/18/04 12:24 Received: 08/20/0418:17 <br /> Di-isopropyl ether 2.2 0.50 gg/L t 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 1.5 0.50 " <br /> fft-butylaleohol ND 5.0rrogate: Toluene-d8 95.0% 72-125 " <br /> U-22(CNH0711-22)Water Sampled:08118/0413:55 Received: 08/20/0418:17 <br /> lDi-isopropyl ether ND 0.50 pg/L 1 CN06577 08125/04 08/25/04 EPA 8260B <br /> Ethyl tert-butyl ether ND 0.50 " <br /> ,Methyl tert-butyl ether ND 0.56 <br /> Wyl methyl ether ND 0.50 <br /> ityl alcohol ND 5.0 <br /> 1Surrogate: Toluene-d8 93.4% 72-125 " " <br /> U-23(CNH0711-23)Water Sampled:08/18/04 14:37 Received: 0812010418:17 <br /> Di-isopropyl ether 0.54 0,50 pg/L 1 CN06577 08/25/04 08/25/04 EPA 8260B <br /> ,Ethyl tert-butyi 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-24(CNH071I-24)Water Sampled:08/18/04 15:48 Received:08/20/04 18:17 <br /> Di-isopropyl ether ND 0.50 gg/L l 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 /> rt-Amyl methyl ether ND 0.50 <br /> keert-butyl <br /> alcohol ND 5.0 " <br /> �urrogate: Toluene-d8 90.9% 72-125 <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br /> 9249 Fitzgerald Road Rancho Cordova,CA 95742 www.californialab.corn 916-638-7301 Fax: 916-638-4510 i <br /> i <br />