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ENVIRONMENTAL HEALTH DEPARTMENT <br /> °U'" 0 SAN JOAQUIN COUNTY <br /> Unit Supervisors <br /> Donna K.Heran,R.E.H.S. <br /> 304 East Weber Avenue, Third Floor Carl Bergman,R.E.H.S. <br /> Director <br /> Mike Huggins,R.E.H.S.,R.D.I. <br /> AI Olsen,R.E.H.S. Stockton, California 95202-2708 Douglas W.Wilson,R.E.H.S. <br /> • cqC+FopNtc Program Manager Telephone: (209)468-3420 Margaret Lagorio,R.E.H.S. <br /> Laurie A.Cotulla,R.E.H.S. Fax: (209) 464-0138 Robert McClellon,R.E.H.S. <br /> Progran+Manager Mark Barcellos,R.E.H.S. <br /> D=EB 2 2 2005 <br /> GENE GABBARD INC JIM & SHEYLA CREEL <br /> 10335 CREEK TRAIL 640 EL DORADO STREET <br /> STOCKTON CA 95209 STOCKTON CA 95202 <br /> RE: Gabbard Property Site Code: # 1090 <br /> 640 EI Dorado Street <br /> Stockton CA 95202 <br /> WORK PLAN: "Work Plan for Additional Site Work" APPROVED: [x]-with conditions <br /> DATED: February 9,2005 DISAPPROVED: [ ] <br /> PREPARED BY: Ground Zero Analysis,Inc. <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORK PLAN 1H&S 25296.10(c)(3)1: <br /> 1. Installation of two monitoring wells discretely screened in deeper water bearing zones. These wells will be located in <br /> the down and cross gradient direction,near monitoring wells M1VV-6 and MW-7. The work plan states these wells are <br /> to investigate the potential vertical migration of PCE at these locations. <br /> 2. Installation of additional shallow groundwater monitoring wells for investigation of the lateral extent of the shallow <br /> groundwater contamination offsite. <br /> 3. Installation of a more efficient skimmer for removal of free-product motor oil from monitoring well MIW-3,the well <br /> located in the former underground storage tank pit area. <br /> COMMENTS AND CONDITIONS: <br /> 1. The vertical extent of the groundwater contamination in the former UST area still has not been addressed or defined. <br /> Further investigation in this are may be necessary. SJC/EHD directs the installation of a third deep,discretely <br /> screened monitoring well located near onsite well MW-4,or immediately down gradient near MVV-1. <br /> 2. SJC/EHD approves the installation of two offsite wells only,the two located on the north side of Park St.,labeled <br /> on the submitted site map as wells MW-10 and MVV/-11. <br /> 3. Please submit a San Joaquin County well permit application and required$89.00 permit fee for each parcel of land on <br /> which drilling will take place. Submit copies of all necessary encroachment permits or access agreements with the <br /> permit applications. <br /> 4. A report of findings must be submitted to SJC/EHD within 60 days following completion of all fieldwork. <br /> Lori Duncan,Senior REHS Nuel C.Henderson,Jr.,R.G. <br /> LOP/Site Mitigation Unit IV LOP/Site Mitigation Unit IV' <br /> cc: James Barton,CVRWQCB <br /> John Lane,Ground Zero Analysis,Inc. <br />