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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N.Wiget lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 4 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916)921-9600 FAX(916)921-0100 <br /> ID 455 <br /> Analytical 1551 Indust all/RBoad. North,Ste. D SanalCarlos,CA 94070-4111 (6050)232-tuma,CA 94954 (77) 9600 FAX(650)232-9612 <br /> SECOR International Project: ARCO 4493,Stockton,CA Sampled: 2/24/99 to 2125/99 <br /> 9912 Business Park Drive,Ste. 100 Project Number: N/A Received: 2/26/99 <br /> Sacramento,CA 95827 Project Manager: Rusty Benkosky Reported: 3/5/99 <br /> Total Purgeable Hydrocarbons(C6-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 Notes* <br /> T2E-12(continued) 5903005-05 SAW <br /> Methyl tent-butyl ether 9030049 3/2/99 3/2/99 0.0500 0.0708 mg/kg <br /> Surrogate: a,a,a-Trifluorotoluene 60.0-140 100 % <br /> ]CIE-13.5 S903005-06 Sail <br /> Purgeable Hydrocarbons 9030048 3/2/99 3/2/99 1.00 4.29 mg/kg 2 <br /> Benzene 0.00500 ND " <br /> Toluene 0.00500 ND " <br /> Ethylbenzene 0.00500 0.0158 " <br /> Xylenes(total) 0.00500 0.0111 " <br /> Methyl tert-butyl ether 0.0500 ND j <br /> Surrogate: a,a,a-Trifluorotoluene 60.0-140 101 YO <br /> L7-3 5903005-07 Sidi <br /> eable Hydrocarbons 9030048 3/2199 312/99 1.00 ND mg/kg <br /> zene 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-Trifluorololuene " 60.0-140 95.5 % <br /> L8-3.5 S903005-08 Skil <br /> Purgeable Hydrocarbons 9030048 312/99 3/2199 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 60.0440 97.0 % <br /> D4-4 S903005-09 Soil <br /> Purgeable Hydrocarbons 9030048 3/2/99 312199 10.0 39.1 mg/kg 3,D <br /> Benzene 0.0500 ND D <br /> Toluene 0.0500 ND D <br /> Ethylbenzene 0.0500 0.181 D <br /> Xylenes(total) 0.0500 0.771 D <br /> Methyl tert-butyl ether 0.500 ND D <br /> Surrogate: a,a,a-Trifluorotoluene " 11 11 60.0-140 94.5 % <br /> D3-3 5903005-10 Sail <br /> gcable Hydrocarbons 9030048 312/99 3/2/99 1.00 ND mg/kg <br /> equoia Analytical-Sacramento *Refer 10 end of report for text of notes and definitions. <br /> -v <br /> Sand�R. anson, Client ervices Representative page 4 of 21 <br />