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PUBLIC H-ZALTH SERVICES ..wry. �o <br /> SAN JOAQUIN COUNTY z: <br /> ENVIRONMENTAL HEALTH DIVISION ` <br /> Karen Furst, M.D., M.P.H., Health Officer �_ P <br /> 4��FO.R�.i� <br /> 304 East Weber Avenue, Third Floor • Stockton, CA 95202 <br /> 209/468-3420 <br /> B M SAMSON <br /> SUTTER OFFICE CENTER <br /> 2001 UNION STREET #300 <br /> SAN FRANCISCO CA 94123 <br /> RE: 242 N.SLITTER STREET Site Code: # 9327 <br /> STOCKTON CA 95202 <br /> APN 139-250-05 <br /> WORK PLAN: Proposed Work Plan-Extent of Soil/Groundwater Contamination <br /> DATED: September 2000 <br /> PREPARED BY: Hydro-Geo Consultants,Inc. <br /> APPROVED: <br /> DISAPPROVED: <br /> ADDENDUM NEEDED: x Submit bv: October 27,2000 <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORK PLAN[H&S 25299.37,subd(c)(3)J: <br /> 1. Installation of one monitoring well onsite to shallow groundwater. <br /> 2. Installation of two direct push soil borings to 40 feet bsg down-gradient(east/north-east) of the site. <br /> 3. A well/receptor survey will be conducted. <br /> COMMENTS AND CONDITIONS: <br /> I. A minimum of three monitoring wells must be installed onsite. <br /> 2. Provide in the work plan addendum a description of how the monitoring wells will be built(casing size,screen length, <br /> type of filter pack,etc.) <br /> 3. A scaled site map showing the location of the proposed wells and soil borings should be included in all work plans <br /> submitted to the county for review. Please provide one for this site. <br /> 4. Sources other than the Department of Water Resources may have to be utilized in order to complete a thorough well/receptor <br /> survey. Other sources may include municipal water suppliers,nearby industries and even a door-to-door search. Provide as much <br /> information as possible about any wells located,such as address,owner,total depth,screen intervals,pumping rates,etc. <br /> 5. The vertical extent of the contaminant plume in both soil and groundwater has not been defined. Describe in the addendum how <br /> you will address each of these issues. <br /> DATED o 0 BY Lzn-,� cA ( C4 <br /> Lori Duncan,Senior RENS (209) 468-0337 <br /> cc: Marry Hartzell,CVRWQCB <br /> John T.O'Rourke,Hydro-Geo Consultants,Inc. FILE COPY <br /> A Division of San Joaquin County Health Care Services <br />