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PUBLIC HrALTH SERVI C"ES <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION <br /> Karen Furst, M.D., M.P.H., Health Officer ;P <br /> iFri 601 <br /> 304 East Weber Avenue, Third Floor • Stockton, CA 9520 <br /> :C 2091468-3420 <br /> BOB YAMADA 'JAN 3 4 1998 <br /> 15406 S TRACY BLVD <br /> STOCKTON CA 95206 <br /> RE: YAMADA BROS SITE CODE: 4067 <br /> 15406 S TRACY BLVD <br /> STOCKTON CA 95206 <br /> This letter is sent as per your attorney's, Mr. Oscar Kleinfeld, request following <br /> our telephone conversation on January 28, 1998. <br /> The presence of hydrocarbons in the groundwater was detected by the lab <br /> analysis of the one grab water sample taken at seven feet below surface at this <br /> site when the underground storage tanks (#39-4067-01 and #39-4067-02) were <br /> removed on July 18, 1991. The analytical results of the one sample are as <br /> follows: <br /> Sample ID: Tank #1 Total Extractable 0.21 mg/L (parts per <br /> (Water) Hydrocarbon (diesel) million) <br /> (same as above) Lead 0.0071 mg/L (ppm) <br /> (same as above) Ethylene dibromide 0.018 ug/L (ppb) <br /> (See attached.) <br /> The water sample was collected from the center of the underground storage tank <br /> (UST) excavation. It was the only sample analyzed and reported by the <br /> laboratory, Roy F. Weston, Inc, although there were soil samples taken at six <br /> feet according to the chain of custody. The depth to water at this site is seven <br /> feet below grade and there is a domestic well less than 200 feet away from the <br /> former UST location. <br /> The San Joaquin County Public Health Services, Environmental Health Division <br /> (PHS/EHD) has determined further investigation is required in order to assess <br /> the extent of the contamination and impact to groundwater. <br /> Enclosed is a list of environmental consulting firms and a claim application <br /> package for the State Water Resources Control Board Cleanup Fund for which <br /> A Division of San Joaquin County Health Care Services <br />