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PUBLIC MALTH SERVICES <br /> 1 <br /> o.PQ�l�� c <br /> SAN JOAQUIN COUNTY r <br /> ENVIRONMENTAL HEALTH DIVISION <br /> Karen Furst, M.D., M.P.H., Health Officer �. P <br /> 304 East Weber Avenue, Third Floor • Stockton, CA 95202 CC <br /> 209/468-3420 <br /> CHIEF GENE LEBLANC AUG 0 G 07 <br /> TRACY RURAL FIRE DISTRICT <br /> 2294 S SEVENTH ST <br /> BANTA CA 95376 <br /> Re: Tracy Rural Fire Station #1 Site Code: 1414 <br /> 22484 Seventh Street <br /> Banta CA 95376 <br /> San Joaquin County Public Health Services, Environmental Health Division (PHS/EHD) has <br /> completed review of the Smith Technology "Workplan for Subsurface Investigation" dated <br /> August 4, 1997. PHS/EHD has prepared the following comments for your response. <br /> The work plan proposed to advance three soil borings to determine the vertical and horizontal <br /> extent of the contamination evidenced at the time of the October 12, 1988 tank removal. The <br /> work plan noted that associated piping was also removed at the time of tank removal. Please <br /> provide information regarding the location of the former product piping. <br /> PHS/EHD understands the Fire District's reluctance to core through the concrete rebar <br /> reinforced driveway; however, in order to determine the horizontal extent of soil and/or <br /> groundwater contamination, it may be necessary to advance additional borings: north, south <br /> and west of the former tank location. <br /> Once field activities are completed and prior to submittal of the soil samples to the laboratory, <br /> PHS/EHD must be contacted to discuss which samples will undergo analysis. The summary <br /> report should include a table with all soil and groundwater sample results obtained from the site <br /> and any recommendations for further investigation and/or remediation. <br /> Also, please be aware that pursuant to the Business and Professions Code, all geological <br /> interpretive activities, such as boring log preparations, must be performed under the direct <br /> supervision of a registered professional geologist and signed following review. <br /> The State Water Resources Control Board Cleanup Fund Unit should be contacted to obtain <br /> pre-approval for the proposed work. <br /> If you have any questions or to schedule the site inspection of the proposed field activities, <br /> please contact me at (209) 468-0337. <br /> Donna Heran, Director, REHS <br /> Environmental Health Division <br /> Mary Meays, Sefor REHS Marga t Lagorio, REHS <br /> Site Mitigation Unit Supervisor <br /> cc: Elizabeth Thayer, Central Valley Regional Water Quality Control Board <br /> Drew Van Allen, Smith Technology <br /> A Division of San Joaquin County Health Care Services <br />