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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 (9Z5)988-9600 FAX(925)988-%73 <br /> 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 455 <br /> uma.CA 94954 (77)792- S65 rA)((707)79Z-034Z <br /> Analytical :551 E d�W�If Bead North,Ste. D SanlCarlos,CA 94070-4111 (6050)232-19600 FAX(650)232-9612 <br /> SECOR International Project: ARCO 4493,Stockton,CA Sampled: 4/13/99 <br /> 9912 Business Park Drive,Ste. 100 Project Number: N/A Received: 4/14/99 <br /> Sacramento,CA 95827 Project Manager: Rusty Benkosky Reported: 4/28/99 <br /> Volatile Organic 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 /> XL-160' S904203-03 $� <br /> Benzene 9040173 4/15/99 4/22/99 100 ND ug/kg <br /> Bromobenzene 100 ND " <br /> Bromochloromethane 100 ND " <br /> Bromodichloromethane 100 ND " <br /> Bromoform 100 ND " <br /> Bromomethane 500 ND " <br /> n-Butylbenzene 100 ND " <br /> sec-Butylbenzene 100 ND " <br /> tert-Butyl benzene 100 ND " <br /> Carbon tetrachloride 100 ND " <br /> Chlorobenzene 100 ND " <br /> Chloroethane 500 ND <br /> Chloroform 100 ND " <br /> romethane ;i i; 500 NDWp <br /> lorotoluene 100 ND <br /> hlorotoluene 100 ND <br /> Dibromochloromethane 100 ND " <br /> 1,2-Dibromoethane 100 ND " <br /> Dibromomethane 100 ND " <br /> 1,2-Dibromo-3-chloropropane 500 ND " <br /> 1,2-Dichlorobenzene 100 ND " <br /> 1,3-Dichlorobenzene 100 ND " <br /> 1,4-Dichlorobenzene 100 ND <br /> Dichlorodifluoromethane 500 ND " <br /> 1,1-Dichloroethane 100 ND " <br /> 1,2-Dichloroethane 100 ND " <br /> 1,l-Dichloroethene 100 ND " <br /> cis-1,2-Dichloroethene 100 ND " <br /> trans-1,2-Dichloroethene 100 ND " <br /> 1,2-Dichloropropane 100 ND " <br /> 1,3-Dichloropropane 100 ND " <br /> 2,2-Dichloropropane 100 ND " <br /> 1,1-Dichloropropene 100 ND " <br /> Ethylbenzene 100 ND " <br /> Hexachlorobutadiene 100 ND " <br /> Isopropylbenzene 100 ND " <br /> p-Isopropyltoluene 100 ND " <br /> Methylene chloride 500 ND " <br /> Naphthalene S00 ND " <br /> n-Propylbenzene 100 ND " <br /> Styrene 100 ND " <br /> uoia Analytical -Sacramento *Refer to end of report for test of notes and definitions. <br /> r� <br /> Sandra R.Hanson,Client Services Representative Page 6 of 19 <br /> �I <br />