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Sequoia esapeake Drive Redwood City,CA 9 (650)364-9600 FAX(650)364-9233 <br /> 4D 404 N.Wiget Lane Walnut Creek,CA 9459 (925)988-9600 FAX(925)988-9673 <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 /> Gettler-Ryan-Sac Project: Tosco 11193,Stockton,CA Sampled: 12/29,,98 <br /> 3164 Gold Camp Dr.,Ste.240 Project Number: 140205.03 Received: 12/29/98 <br /> Rancho Cordova,CA 95670 Project Manager: Todd Del Frate Reported: 1/6/99 <br /> Total Purgeable Hydrocarbons(C6-02),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 /> DI-2-10.5 5812362-01 Soil <br /> Purgeable Hydrocarbons 9010047 1/5/99 1/5/99 1.00 ND mg/k2 <br /> Benzene 0.00500 ND " <br /> Toluene 0.00500 ND " <br /> Ethvlbenzene 0.00500 ND " <br /> Xylenes(total) 0.00500 0.0198 " <br /> 'Methvl tert-butyl ether 0.0500 0.338 " <br /> Surrogate: a,a,a-Trifluorotoluene 60.0-140 905 <br /> D2-2-10.5 S812362-02 soil <br /> Methyl tert-butyl ether 9010047 1/5/99 1/5/99 0.500 5.09 mgikg D <br /> Surrogate: a,a,a-Trifluorotoluene 60.0-140 92.5 X) <br /> Purgeable Hydrocarbons 1.00 ND mgikg <br /> Benzene 0.00500 0.0172 <br /> Toluene 0.00500 0.0493 <br /> Ethvlbenzene 0.00500 0.00982 " <br /> Xylenes(total) 0.00500 0.0566 <br /> Surrogate: a,a,a-Trifluorotoluene " " " 60.0-140 92.0 "% <br /> D3-2-10.5 S812362-03 Soil <br /> Purgeable Hydrocarbons 9010047 1/5/99 1/5/99 2500 29600 mg/kg 1,13 <br /> Benzene 12.5 227 D <br /> Toluene 12.5 1560 D <br /> Ethvlbenzene 12.5 604 D <br /> Xylenes(total) 12.5 2900 D <br /> Methyl tert-butyl ether 125 ND D <br /> Surrogate: a,a,a-Trifluorotoluene 60.0-140 105 <br /> 04-2-10.5 S812362-04 SAW <br /> Purgeable Hydrocarbons 9010047 1/5/99 1/5/99 1.00 ND mg/kg <br /> Benzene 0.00500 0.00538 " <br /> Toluene 0.00500 0.00816 " <br /> Ethylbenzene 0.00500 ND " <br /> Xylenes(total) 0.00500 0.0150 " <br /> Methyl tert-butyl ether 0.0500 0.172 " <br /> Surrogate: a,a,a-Trifluorotolttene 60.0-140 90.0 % <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of notes and definitions. <br /> Sandra R.Hanson,Client Services Representative Page 2 of 4 <br />