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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 1 404 N.Wiget Lane Walnut Creek.CA 94598 (925)988-9600 FAX(925)988-9673 <br /> �,,,� Analytical 819 Striker Avenue,Suite 8 Sacramento.CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd.North,Ste.D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 9 <br /> SECOR International Project: ARCO 4493, Stockton,CA Sampled: 2116199 <br /> 9912 Business Park Drive,Ste 100 Project Number: NIA Received: 2/17199 <br /> Sacramento,CA 95827 Project Manager: Rusty Benkosky Reported: 313199 <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 Nates* <br /> MW-1 S9�z52-01 Water <br /> Benzene 9020304 2126199 2126199 10.0 ND ugll D <br /> Bromobenzene 10.0 ND D <br /> B romoch loro methane 10.0 ND D <br /> Bromodichioromethane 10.0 ND D <br /> Bromoform 10.0 ND D <br /> Bromomethane 25.0 ND D <br /> n-Butylbenzene 10.0 ND D <br /> sec-Buty[benzene 10.0 ND D <br /> tert-Butylbenzene 10.0 ND D <br /> Carbon tetrachloride 10.0 ND D <br /> Chlorobenzene 10.0 ND D <br /> Chloroethane " <br /> 25.0 ND D <br /> Chloroform 10.0 11.1 D <br /> 0oromethane " 25.0 ND " D <br /> hlorotoluene 10.0 ND D <br /> 4-Chlorotoluene 10.0 ND D <br /> Dibromochloromethane 10.0 ND D <br /> 1,2-Dibromoethane 10.0 ND D <br /> Dibromomethane 10.0 ND D <br /> 1,2-Dibromo-3-chloropropane 25.0 ND D <br /> 1,2-Dichlorobenzene 10.0 ND D <br /> 1,3-Dichlorobenzene 10.0 ND D <br /> 1,4-Dichlorobenzene 10.0 ND D <br /> Dichlorodifluoromethane 25.0 ND D <br /> 1,1-Dichloroethane 10.0 ND D <br /> 1,2-Dichloroethane 10.0 ND D <br /> l,l-Dichloroethene 10.0 ND D <br /> cis-1,2-Dichloroethene 10.0 39.4 D <br /> trans-1,2-Dichloroethene 10.0 ND D <br /> 1,2-Dichloropropane 10.0 ND D <br /> 1,3-Dichloropropane 10.0 ND D <br /> 2,2-Dichloropropane 10.0 ND D <br /> 1,1-Dichloropropene 10.0 ND D <br /> Ethylbenzene 10.0 ND D <br /> Hexachlorobutadiene 10,0 ND D <br /> IsopropyIbenzene 10.0 ND D <br /> p-Isopropyltoluene 10.0 ND D <br /> Methylene chloride 25.0 ND D <br /> Naphthalene 25.0 ND D <br /> n-Propylbenzene 10.0 ND D <br /> 10.0 ND D <br /> equoia Analytical-Sacramento *Refer to end of report for text of notes and definitions. <br /> Sandra R. Hanson,Client Services Representative Page 3 of 20 <br />