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PUBLIC RE.ALTH SERVILE <br /> oAQUJN. <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION < <br /> Karen Furst, M.D., M.P.H., Health Officer <br /> 304 East Weber Avenue, Third Floor - Stockton, CA 95202 <br /> 209/468-3420 <br /> HOWARD LENZ AUG 19 W7 <br /> 2362 PHEASANT RUN CIRCLE <br /> STOCKTON CA 95207 <br /> Re: Howard Lenz Property/Fisco Warehouse Site Code: 2181 <br /> 1648 Shaw Road <br /> Stockton CA 95207 <br /> San Joaquin County Public Health Services, Environmental Health Division (PHS/EHD)has reviewed the <br /> "Preliminary Site Investigation Work Plan -July 1997"which was received on August 7, 1997. PHS/EHD <br /> has prepared the following comments for your consideration and response. <br /> The work plan proposed one soil boring to be advanced in the area of the former 550 gallon diesel tanks. <br /> The proposed soil boring will be advanced to a depth of 30 feet below ground surface (bgs) and samples <br /> collected at five foot intervals beginning at 5 feet bgs. At minimum two additional borings will be required <br /> to investigate the lateral extent of the soil contamination evidenced to date. Additional borings and/or <br /> monitoring wells may be necessary to define the extent of the soil and/or groundwater contamination which <br /> resulted from the operation of the former tanks. <br /> Once field activities are completed and prior to submittal of the soil samples to the laboratory, PHS/EHD <br /> must be contacted to discuss which samples will undergo analysis. The summary report should include a <br /> table with all soil and groundwater sample results obtained from the site and any recommendations for <br /> further investigation and/or remediation. <br /> The State Water Resources Control Board Cleanup Fund Unit should be contacted to obtain pre-approval for <br /> the proposed work. <br /> If you have any questions or to notify me when drilling has been scheduled so that the required site <br /> inspections can be scheduled, please contact me at(209)468-0337. <br /> Donna Heran, Director,RENS <br /> Environmental Health Division <br /> Mary Meays, Senior HS _!t7rL`agorioV, R�EHS <br /> Site Mitigation Unit Supervisor <br /> cc: Elizabeth Thayer, Central Valley Regional Water Quality Control Board <br /> cc: Annabel L. Mackey, State Water Resources Control Board,Cleanup Fund Unit <br /> cc: Bob Marty, Advanced GeoEnvironmental <br /> A Division of San Joaquin County Health Care Services <br />