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819 Striker Avenue,Suite 8 <br /> Sequoia Sacramento,CA 95834 <br /> 4 (916)921-9600 <br /> Analytical FAX (916)921-0100 <br /> IT Group-Rancho Cordova Project: Tosco 44409,Stockton,CA Sampled: 612199 <br /> 11315 Sunrise Gold Circle#A Project Number: NIA Received: 613199 <br /> Rancho Cordova.CA 95742 Project Manager: Mike Mitchener Reported: 6123199 <br /> Total Purgeable Hydrocarbons(C6-C12),BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical-Sacramento <br /> I <br /> Batch Date Date Surrogate Reporting <br /> Analyte Number Prepared Analvzed Limits Limit Result Units Notes' <br /> S906049-01 5A <br /> Purgeable Hydrocarbons 9060100 617199 617199 20.0 247 mg/kg 1,D <br /> Benzene 0.100 ND „ D <br /> 0.100 ND D <br /> Toluene <br /> E,thylbenzeae 0.100 0.171 " D <br /> 0.]00 0.82$ D <br /> Xylenes(total) <br /> 1.00 ND D <br /> Methyl tert-butyl ether <br /> 60.0-140 95.5 <br /> Srrogate: a,a,a-Tris luorotoluene <br /> u <br /> 5906049-02 SAM <br /> Purgeable Hydrocarbons 9060100 617199 617199 20.0 177 mg/kg 1,D <br /> Benzene 0.100 ND „ D <br /> Toluene 0.100 ND D <br /> 0.100 0.521 D <br /> Ethylbenzene <br /> �hy <br /> es(total) 0.100 2.01 D <br /> I ten-butyl ether 1.00 ND D <br /> Surrogate: a,a,a-Trifluorotoluene <br /> 600-140 96.5 °/u <br /> OX-My 5906049-03 Wate1 <br /> 5000 36500 u 2,D <br /> Purgeable Hydrocarbons 9060110 617199 617199 g� <br /> " " " 50.0 605 D <br /> Benzene <br /> " 50.0 289 D <br /> Toluene „ <br /> Ethylbenzene <br /> " " 50.0 2090 D <br /> Xylenes(total) 50.0 8590 D <br /> Methyl ten-butyl ether 500 ND D <br /> Surrogate: a,a,a-Trifiuorotoluene <br /> b00-140 <br /> ' . 75.9 % <br /> S906049-04 S9�1 <br /> Purgeable Hydrocarbons 9060100 617199 6/7/99 100 1110 mg/kg I,D <br /> 0.500 ND D <br /> Benzene " 0.500 ND D <br /> Toluene „ <br /> 0.540 3.75 D <br /> Ethylbenzene 0.500 17.3 D <br /> „ <br /> Xylenes(total) " <br /> Methyl tert-butyl ether 5.00 ND D <br /> Surrogate: a,a,a-Trifluorotoluene <br /> " 60.0-140 89.5 % <br /> 5906049-45 Sim <br /> Purgeable Hydrocarbons 9060100 617199 617199 20.0 347 mg/kg 1,D <br /> " 0.100 ND D <br /> Benzene 0.100 2.71 D <br /> Toluene <br /> 0.100 4.51 D <br /> Ethylbenzene <br /> 0.100 17.5 D <br /> lenes(total) <br /> — <br /> Sequoia Analytical-Sacramento "Refer to end of report for text of notes and definitions. <br /> Page 2 of 10 <br />