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PUBLIC HEALTH SERVIc S 'OpO.!�Y!N <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION N <br /> Karen Furst, M.D., M.P.H., Health Officerq. �P <br /> 304 East Weber Avenue, Third Floor • Stockton, CA 95202 <br /> 209/468-3420 <br /> MIKE KARVELOT <br /> QUIK STOP MARKETS INC <br /> 4567 ENTERPRISE ST <br /> FREMONT CA 95438-7605 <br /> RE: QUIK STOP MARKET#121 Site Code: # 1430 <br /> 1196 W.LOUISE AVE. <br /> MANTECA CA 95336 <br /> WORK PLAN: Work Plan for Additional Well Installations <br /> DATED: September 18,2000 <br /> PREPARED BY: Compliance&Closure,Inc. <br /> APPROVED <br /> DISAPPROVED �O <br /> ADDENDUM NEEDED [xj Submit by October 20,2000 <br /> 40k <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORK PLAN[H&S 25299.37,subd(c)(3)1: <br /> 1. Installation onsite of one depth discrete well,built to 42 feet below surface grade(bsg). <br /> 2. Installation onsite of one groundwater extraction well. <br /> 3. Installation offsite of two wells in a cluster,one shallow and one deep(to 42 feet bsg). <br /> 4. Soil and groundwater samples will be analyzed for TPHg,BTEY,and Oxygenates by EPA Method 8260. <br /> 5. At least one of the onsite borings will be continuously cored. <br /> 6. Installation onsite of two additional shallow groundwater monitoring wells. <br /> COMMENTS AND CONDITIONS: <br /> win the locations of all proposed installations must be submitted with all work plans. <br /> 1. A scaled site ma showing p p . <br /> p <br /> g <br /> 2. Vertical definition of the MtBE contamination in groundwater has not been made onsite. PHS/EHD directs that a <br /> second deep well be installed onsite,screened in the gravelly sand lens located at approximately 70 feet bsg. <br /> 3. Additional deep,discretely screened wells maybe necessary in the future. <br /> 4. Specific details of the proposed groundwater extraction system must be submitted to PHS/EHD. Include a diagram <br /> and details of the well,piping and treatment system,and plans for discharge of the treated water. <br /> DATED 10 H d _BY L � Cl <br /> Lori DuncanSenior REHS (209) 468-0337 <br /> cc: Marry Hartzell,CVRWQCB <br /> George Yamashita,c/o Jeffrey Widman <br /> Gary Mulkey,Compliance&Closure,Inc. <br /> A Division of San Joaquin County Health Care Services <br />