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Sequoia <br /> y�� 1455 McDowell Blvd, North. Ste. D <br /> J t..a Petaluma, CA 94954 <br /> (707) 792-1865 <br /> Iwo Anal)f ical FAX (707}792-0342 <br /> Blaine'Tech Services, Inc. Project: Chevron USA,Inc. Sampled: 2/2/00 <br /> 1680 Rogers Ave. Project Number: 139 S.Center St, Stockton Received: 2'7100 <br /> San Jose,CA 95112 Project Manager: Scott Boor Reported: 2/22/00 <br /> Total Petroleum Hydrocarbons as Gasoline and BTEX by EPA 80I5M18020M <br /> Sequoia Analytical-Petaluma <br /> Batch Date Date Surrogate Reporting <br /> Analyte Number Prepared Analyzed Limits Limit Result Units Notes* <br /> MW-9(continued) P002365-09 Water <br /> Toluene 0020366 2115/00 2115/00 500 20800 ug/l <br /> Ethylbenzene 500 2290 " <br /> Xylenes(total) 500 12000 " <br /> Methyl tert-butyl ether 2500 ND " <br /> Surrogate: a,a,a-Trifluorotoluene 65.0-135 102 % <br /> Surrogate: 4-Bromofluorobenzene 65.0-135 91.3 " <br /> TR P002365-10 Water <br /> Gasoline 0020366 2/15/00 2115/00 50.0 ND ug/l <br /> Benzene 0.500 ND " <br /> Toluene 0.500 ND " <br /> Ethylbenzene 0.500 ND " <br /> Xylenes(total) 0.500 ND " <br /> Methyl tent-butyl ether 2.50 ND <br /> rrogale: a,a,a-Trifluorotoluene 65.0-135 105 % <br /> arrogate., 4-Bromofluorobenzene 65.0-135 94.0 <br /> lWquoia Analytical - Petaluma *Refer to end of report for text of notes and definitions. <br /> Page 4 of 6 <br />