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680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia 404 N wlget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 4a- ) <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell 81vd North Ste D Petaluma CA 94954 (747)792-1865 FAX(707)792-0342 <br /> Iwo1551 Industrial Road San Carlos CA 94070-4111 (650)232-9600 FAX(650)232-9612 <br /> Pacific Environmental Group-Sac Project Chevron, 1001621 Banta CA Sampled 2/23/99 <br /> 11315 Sunrise Gold Circle St M Project Number 920 002 2D Received 2126/99 <br /> Rancho Cordova,CA 95742 Protect Manager Chris Brown Reported 3112199 <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 /> T-1 (contu=Q 890.2349-14 Water <br /> Xylenes(total) 9030038 3/2/99 312199 0 500 ND ug/I <br /> Methyl tert-butyl ether „ „ 11 500 ND <br /> 1. <br /> Surrogate a a a-Tris luorotoluene " " " 600-140 108 % <br /> 1--1 S902349-1 Water <br /> Purgeable Hydrocarbons 9030040 313199 313199 500 ND ug/l <br /> „ 1, 110 500 ND <br /> Benzene „ <br /> to 0 500 ND <br /> Toluene <br /> 0 500 ND <br /> Ethylbenzene <br /> Xylenes(total) 0 500 <br /> Methyl tert-butyl ether 5 00 78 <br /> 5 58 " <br /> Surrogate a,a,a-Trifluorotoluene 600-140 <br /> 107 <br /> 5902349-16 Water <br /> Purgeable Hydrocarbons 9030039 3/3199 3/3/99 500 ND ug/1 <br /> 0 500 ND <br /> Benzene 0 500 ND " <br /> Toluene „ <br /> to 0 500 ND <br /> Ethylbenzene <br /> 0 500 ND <br /> Xylenes(total) <br /> Methyl tert-butyl ether 5 00 4 8 <br /> Surrogate a,a a-Tr¢fluoratoluene <br /> 60 0-140 94 8 <br /> 0 <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of nates and definitions <br /> Page 6 of 17 <br /> Sandra R Hanson,Client Services Representative <br />