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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650)3649600 FAX(650)364-9233 <br /> 404 H.Wiget cane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-%73 <br /> 819 Striker Avenue,Suite S Sacramento.CA 95834 (916)921-9600 FAX(916)92 1-0 100 <br /> 455 cDowe <br /> Blvd. <br /> talua,CA 94954 (707)792- 865 FAX(707) 792-032 <br /> Analytical 1551 InduustrialllRoad North,Ste. 0 San Carlrlos,CA 94070-4111 (650)232-19600 FAX(650)232-9642 <br /> SECOR International Project: ARCO 4493,Stockton,CA Sampled: 4/13/99 <br /> 9912 Business Park Drive,Ste. 100 Project Number: NIA Received: 4/14/99 <br /> Sacramento,CA 95827 Project Manager: Rusty Benkosky Reported: 4/28/99 <br /> Total Purgeable Hydrocarbons(C&C12),BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical-Sacramento <br /> Batch Date Date Surrogate Reporting <br /> Analyte Number Prepared Analyzed Limits Limit Result Units Nates* <br /> OE-?n.2, S904203-01 S(W <br /> Purgeable Hydrocarbons 9040178 4/16/99 4/16/99 1.00 ND mg/kg <br /> Benzene 0.00500 ND " <br /> Toluene 0.00500 ND " <br /> Ethylbenzene 0.00500 ND " <br /> Xylenes(total) 0.00500 ND " <br /> Methyl cert-butyl ether 0.0500 ND " <br /> Surrogate: a,a,a-Trifluorotoluene 60.0-140 97.5 <br /> OE-802' $204203-02 Soil <br /> Purgeable Hydrocarbons 9040178 4/16/99 4/16/99 1.00 ND mg/kg <br /> Benzene 0.00500 ND " <br /> Toluene 0.00500 ND " <br /> Ethylbenzene 0.00500 ND " <br /> lenes(total) 0.00500 ND " <br /> hyl tert-butyl ether 0.0500 ND " <br /> urrogate: a,a,a-Trifluorotoluene 60.0-140 97.5 <br /> XL-I�2' S904203-03 SJW <br /> Purgeable Hydrocarbons 9040178 4/16/99 4/16199 1.00 ND mg/kg <br /> Benzene 0.00500 ND " <br /> Toluene 0.00500 ND " <br /> Ethylbenzene 0.00500 ND " <br /> Xylenes(total) 0.00500 ND " <br /> Methyl ter-butyl ether 0.0500 ND " <br /> Surrogate: a,a,a-Trifluorotoluene 60.0-140 100 <br /> XL,2&9' 5904203-04 Slid <br /> Purgeable Hydrocarbons 9049178 4/16/99 4/16199 1.00 ND mg/kg <br /> Benzene 0.00500 ND " <br /> Toluene 0.00500 ND " <br /> Ethylbenzene 0.00500 ND " <br /> Xylenes(total) 0.00500 ND " <br /> Methyl tert-butyl ether 0.0500 ND " <br /> Surrogate: a,a,a-Trifluorotoluene 60.0-140 97.5 <br /> quoia Analytical-Sacramento *Refer to end of report for text of notes and definitions. <br /> 12 <br /> Sandra R. Hanson,Client Services Representative Page 2 of 19 <br />