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h <br /> 1551 Industnal Road <br /> Sequoia San Carlos, CA 94070-4111 <br /> (650)232-9600 <br /> Analytical FAX(650) 232-9612 <br /> s <br /> Gettler-Ryan/Geostrategies(1) Project Unocal(l) Sampled 11/23/99 <br /> 6747 Sierra Court,Suite D Project Number Unocal SS#0187/Job#280045 Received 11/24/99 <br /> Dublin,CA 94568 Project Manager Deanna Harding R orted 12/10/99 <br /> Sample Description NP-2-22 <br /> Laboratory Sample Number. L911275-14 <br /> Batch Date Date Specific Method/ Reporting <br /> IAna]Ae Number Prepared Analyzed Surrogate Limits Limit Result Units Notes* <br /> Senuoin Analytical-San Carlos <br /> Total Pur eable Hydrocarbons C6-C12 BTEX and MTBE by DHS LUFT <br /> Purgeable Hydrocarbons as Gasoline 9120016 12/3/99 12/3/99 500 1190 ug/l 2 <br /> Benzene of to500 461 " <br /> Toluene to 11 1. 500 ND " <br /> Ethylbenzene toto N500 ND " <br /> Xylenes(total) " ' It <br /> 5 00 ND " <br /> Methyl tert-butyl ether 500 ND " <br /> Surrogate a aa-Trifluorotoluene " 700-130 905 <br /> Volatile Organic Oxygenated Compounds by EPA Method 8260A <br /> Ethanol 9120029 1217/99 12/7/99 1000 ND ug/1 <br /> Tert-butyl alcohol 200 ND " <br /> Methyl tert-butyl ether 200 ND " <br /> ropyl ether " 200 267 " <br /> ElWtert-butyl ether 200 ND " <br /> Tert-amyl methyl ether 200 ND_ " <br /> Surrogate 12-Dichloroethane-d4 760-114 908 <br /> 0 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> Page 15 of 28 <br />