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1 ; <br /> Sequoia %O 15apeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wlget Lane Walnut Creek,CA 94598 (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 ma <br /> i 1455 McDowell Blvd North Ste D PetaluCA 94954 707 792-1865 FAX 707 79Z-0342 <br /> y - <br /> Pacific Environmental Group-Sac Project Unocal 0123,Tracy,CA Sampled 1016198 <br /> 1 1315 Sunrise G01d Circle St M Project Number 910-017 1A Received 10/7/98 <br /> Rancho Cordova,CA 95742 Project Manager Mike Mitchener Reported 10/20/98 <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 /> BBQ 10' SH I Q080-01 5AW <br /> Purgeable Hydrocarbons 8t00157 10/9/98 10/9/98 1 00 ND mg/kg <br /> Benzene 000500 ND " <br />' Toluene 000500 ND <br /> Ethylbenzene 000500 ND " <br /> Xylenes(total) 000500 ND " <br /> Methyl tert-butyl ether 00500 ND " <br /> tSurrogate a,a,a-Trrfluorololuene - 600-140 850 % <br /> BA-A01 5810080-03 SAW <br />' Purgeable Hydrocarbons 8100157 10/9198 10/9/98 1 00 ND mg/kg <br /> Benzene 11 000500 ND " <br /> Toluene 000500 ND " <br /> Ethylbenzene 000500 ND " <br /> JKylenes(total) " " 000500 ND " <br /> ethyl tert-butyl ether 00500 ND <br /> surrogate a a a-Trifluorotoluene 600-140 895 910 <br /> B-4(k 23 S810080-04 SAW <br /> Purgeable Hydrocarbons 8100157 10/9/98 10/9/98 1 00 ND mg/kg <br /> Benzene 000500 ND " <br />' Toluene 000500 ND " <br /> Ethylbenzene " " 000500 ND " <br /> Xylenes(total) 000500 ND " <br /> Methyl tert-butyl ether 00500 ND " <br /> Surra to a,a a-Trrfluorololuene 600-140 940 % <br /> U-6 11' 5810080-05 ydrocarbons 8100157 10/9/98 10/9198 200 Z2jrI,D <br />'Benzene 0 100 D <br /> Toluene 0100 ND D <br /> Ethylbenzene 0100 ND D <br />'Xylenes(total) ;i 0100 ND D <br /> Methyl tert-butyl ether 1 00 ND D <br /> Surrogate a a a-Trrfluorotoluene 600-140 106 % <br /> U-6 as 16' 5810080-06 SAW <br /> Purgeable Hydrocarbons 8100157 10/9/98 1019198 1 00 ND mg/kg <br /> Benzene 000500 ND " <br /> Toluene 000500 ND " <br /> Ethylbenzene 000500 ND " <br /> ri <br /> lenes(total) 000500 ND " <br /> quota Analytical-Sacramento *Refer to end of report for text of notes and definitions <br /> Fin' <br /> da C Schneider,Laboratory Director Page 2 of 16 <br />