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680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia 404 N Wiget lane Walnut Creek.CA 94598 (925)988-9600 FAX(925)968-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921.9600 FAX(916)921-0100 <br /> �- Analytical 1455 MCDowell Blvd North Ste D Petaluma CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 1551 industrial Road San Carlos CA 94070-4111 (650)232-9600 FAX(650)23Z-9612 <br /> SECOR International Project Chevron 9-6258,Stockton,CA Sampled 416199 to 417199 <br /> 9912 Business Park Drive,Ste 100 Project Number 7GO07-018-Ot Received 418199 <br /> Sacramento,CA 95827 Project Manager Roger Hoffmore Reported 4122/99 <br /> Volatile Organic Compounds by EPA Method 8010E <br /> Sequoia Analytical-Sacramento <br /> Batch Date Date Surrogate Reporting <br /> IAnalyte Number Prepared Analyzed Limits Limit Result Units Notes` <br /> DL-1 0-25' 5994159-0 SQil <br /> Ethylene dibromide 9040243 4120/99 4/20/99 500 ND ug/kg <br /> Bromodichloromethane 500 ND " <br /> Bromoform 500 ND " <br /> Bromomethane 100 ND " <br /> Carbon tetrachloride 500 ND <br /> Chlorobenzene Soo ND " <br /> Chloroethane 100 ND " <br /> 2-Chloroethylvmyl ether too ND " <br /> Chloroform 500 ND " <br /> Chloromethane too ND " <br /> Dibromochloromethane 500 ND " <br /> 1,3-Dichlorobenzene 500 ND " <br /> 1,4-Dichlorobenzene 500 ND " <br /> 1,2-Dichlorobenzene 500 ND " <br /> 0l-Dichloroethane Soo ND <br /> 2-Dichloroethane 500 ND " <br /> ],I-Dichloroethene 500 ND <br /> cis-1,2-Dichloroethene 500 ND <br /> trans-1,2-Dichloroethene 500 ND " <br /> 1,2-Dichloropropane 500 ND " <br /> cis-1,3-Dichloropropene 500 ND <br /> trans-1,3-Dichloropropene 500 ND " <br /> Methylene chloride 500 ND " <br /> 1,1,2,2-Tetrachloroethtme- 5 00- NLS " <br /> Tetrachloroethene 500 ND " <br /> 1,1,1-Trichloroethane 500 ND " <br /> 1,1,2-Trichloroethane Soo ND " <br /> Trichloroethene 500 ND <br /> Trichlorofluoromethane Soo ND " <br /> Vinyl chloride 10 0 ND " <br /> Surrogate Bromochloromethane 600-140 700 % <br /> Surrogate 2-Chlorotoluene 600-140 117 " <br /> wquoia Analytical-Sacramenta _ "Refer to end of report for text of rotes and drfina ons m <br /> Sandra R Hanson,Client Services Representative Page 6 of 23 <br />