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1 Chesapeake Drive Redwood City, CA �3 (650) 364-9600 FAX (650) 364-9233 <br /> Sequoia 404 N. Wiget Lane Walnut Creek, CA 94��8 (925) 988-9600 FAX (925) 988.9673 <br /> 819 Striker Avenue, Suite 8 Sacramento, CA 95834 (916) 921 -9600 FAX (916) 921 -0100 <br /> Anal yti ^ ^ l 1455 McDowell Blvd. North, Ste. D Petaluma, CA 94954 (707) 792-1865 FAX (707) 792-0342 <br /> 1 ` ` A 1551 Industrial Road San Carlos, GA 94070-4111 (650) 232-9600 fAX (650) 232-9612 <br /> F164 <br /> yan - Sac Project: Chevron 9-3232, Stockton, CA Sampled: 4/26/99 <br /> ld Camp Dr., Ste. 240 Project Number: 346463.04 Received: 4/27/99 <br /> Cordova, CA 95670 Project Manager: Rick Fears Reported: 5/12/99 <br /> Volatile Oxygenate Compounds by EPA Method 8260A <br /> Sequoia Analytical - Sacramento <br /> Batch Date Date Surrogate Reporting <br /> Analyte Number Prepared Analyzed Limits Limit Result Units Notes* <br /> B11-145' 5904385-03 soilTert-butyl alcohol 9050101 5/ 10/99 5/10/99 10.0 ND mg/kg <br /> Methyl tert-butyl ether " it110. 100 ND to <br /> Di-isopropyl ether " It „ 0. 100 ND " <br /> Ethyl tert-butyl ether It toto0. 100 ND <br /> Tert-amyl methyl ether „ 0. 100 ND <br /> Ethanol to 150 ND to <br /> Surrogate: 1,2-DCA-d4 01it 60. 0-140 102 <br /> BH-1-30' 5904385-06 591 <br /> Tert-butyl alcohol 9050101 5/ 10/99 5/10/99 10.0 ND mg/kg <br /> Methyl tert-butyl ether " " it0. 100 ND " <br /> Di-isopropyl ether it ItIt0. 100 ND " <br /> Ethyl tert-butyl ether it ItIF0. 100 ND it <br /> Tert-amyl methyl ether 0. 100 ND it <br /> Ethanol 150 ND If <br /> Surrogate: 1,1-DCA-d4 60. 0-140 91,.6 % <br /> 1311-1 -45' 5904385-09 soil <br /> Tert-butyl alcohol 9050101 5/10/99 5110/99 10.0 ND mg/kg <br /> Methyl tert-butyl ether " " 0. 100 ND OF <br /> Di-isopropyl ether " " 0. 100 ND IF <br /> Ethyl tert-butyl ether 0. 100 ND " <br /> Ten-amyl methyl ether 0. 100 ND " <br /> Ethanol It IFIF150 ND " <br /> Surrogate: 1,2-DC.444 to ItIf60. 0- 140 98. 0 % <br /> Sequoia Analytical - Sacramento *Refer to end ofrepor i for text of notes and definitions. <br /> Sandra R. Hanson, Client Services Representative Page 3 of 6 <br />