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' tlOARD OF TRUSTEES ... .N JOAQUIN LOCAL HEALTH Di, . RICT SERVING <br /> Al Crow Pres San Joaquin County <br /> Earl Pimentel Vice Pres 1601 East Hazelton Avenue City of Manteca <br /> Tommy Joyce Sec y Stockton, California 95205 City of Escalon <br /> James F Culbertson City of Lodi <br /> John D Mast,M D JOGI KHANNA. M D, M P H, DISTRICT HEALTH OFFICER City of Tracy <br /> ' Virginia Mathews City of Ripon <br /> Thomas Schubert,D V M San Joaquin County <br /> Daphne Shaw City of Stockton <br /> Harvey Williams PhD San Joaquin County <br /> September 27, 1988 <br /> victor Farhoud 4`-' L, <br /> EZ Gas Minimart <br /> 1405 Main Street <br /> Escalon, CA 95352 <br /> Re 1405 Main Street, Escalon <br /> Review of the Supplemental Site Assessment submitted to this <br /> office on 8 September 1988, reveals the following: <br /> 1 1 . The SJLHD does not concur with the conclusions and recommend- <br /> ations of the ETS Environmental report . Specifically: <br /> a )The report does not include a cross--sectional diagram <br /> indicating the direction and true vertical depth of the <br /> 30 degree angle borings #6 and #7, nor the relationship <br /> of these borings to potential sources of the contamination <br /> noted in boring #6 . <br /> b) It is unclear from the information provided how the <br /> analytical laboratory is able to distinguish between <br /> "weathered" gasoline and diesel in characterizing the <br /> contamination identified in the initial report . <br /> c )The investigation does not address the diesel tank precision <br /> test in 1986 which failed to show piping integrity and <br /> the subsequent piping repair performed by R&R Service <br /> Station Repair . <br /> 2 . Further investigation may be required in the future to <br /> identify the nature and extent of 5011 contamination noted <br /> in the Preliminary Site Assessment Report of 7/11/88, and <br /> to prove that groundwater contamination has not occurred <br /> at this site . <br /> 3 . An Unauthorized Release Report will be filed for this facility <br /> and 1t will be added to the list of sites with evidence of <br /> soil contamination. <br /> Administration Clinical Services Environmental Health Public Health Nursing <br /> 468-3400 468-3830 468-3420 468-3860 <br /> Air Pollution Community Services Laboratory WIC <br /> 468-3470 468-3820 468-3460 468-3280 <br /> AIDS Information 468-3820 <br />