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�• i <br /> 6 CONCLUSIONS <br /> E , I <br /> r <br /> V R <br /> I ; <br /> • Although an October 2003 grab soil sample collected from�4 feet beneath the eastern gasoline y <br />} dispenser contained 1.5 mg/Kg MTBE, three March 2004 soil samples collected from depths of 5, <br /> 7, and 9 feet a few feet away did not contain detectable gasoline, BTEX, or MTBE, indicating very <br /> limited and minor residual MTBE contamination. <br /> • Although an October 2003 grab soil sample collected from 4 feet beneath the diesel dispenser <br /> contained 140 mg/Kg diesel, three March 2004 soil sample's collected from depths of 5, 7, and 9 <br /> feet a few feet away did not contain detectable diesel, indicating very limited and minor residual <br /> diesel contamination. s <br /> • Although two October 2003 grab soil samples collected from 4 and 4.5 feet beneath the waste oil <br /> tank piping contained 0.0055 and 0.0079 mg/Kg PCE, three March 2004 soil samples collected <br /> from depths of 5, 7, and 9 feet a few feet away did not contain detectable PCE, indicating very <br /> limited and minor residual PCE contamination. <br /> 7 REFERENCES <br /> Wagner, D.L., E.J. Bortugno, R.D. McJunkin, compilers. 1990. Geologic map of the San Francisco—San <br /> Jose quadrangle. California Division of Mines and Geology. 1:250,000. <br /> { Geo-Logic, 2003. Sampling Report for PG&E Stockton, 4040 West!Lane, Stockton, California. <br /> Consultant's report prepared for Paradiso Mechanical, Inc. October 28, 2003. h <br /> IT Corporation. 2001. Report on excavation, sampling and disposal associated with the upgrades of <br /> f product delivery lines and dispensers at the Pacific Gas &Electric Company Stockton Service Center <br /> Fueling Facility, 4040 West Lane, Stockton, California. Prepared for PG&E. April 11, 2001. <br /> f i <br /> PG&E. 2003. Workplan, Proposed Soil Investigation Near Two Fuel Dispensers, PG&E Stockton Service <br /> Center, 4040 West Lane, Stockton, California, 95204. TES Report No. 402.331.04.10. January 30, 2004. I <br /> Technical and Ecological Services, San Ramon, CA. j <br /> �? k <br /> * I <br /> . 1 <br /> 3 <br /> k <br /> � k <br /> d <br /> I{ <br /> 402.331.04.30 5 <br /> k <br />