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.p <br /> PUBLIC HEALTH SERVICYS <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION <br /> Karen Furst M.D. M.P.H. Health Officer <br /> 4FORa` <br /> 304 East Weber Avenue, Third Floor • Stockton, CA 95202 6 <br /> 2091468-3420 <br /> 51 y <br /> PAUL SUPPLE C (DID <br /> ARCO PRODUCTS COMPANY <br /> PO sox 6549 MAR 0 6 2000 <br /> MORAGA CA 94570 <br /> Re: ARCO Service Station #2186 Site Code: 1035 <br /> 3212 N.California St. <br /> Stockton, CA 95204 <br /> San Joaquin County Public Health Services Environmental Health Division(PIASIE1^ID)has reviewed the <br /> Well Installation and Feasibility Test Workplan dated 1�ebruary 10,2000 prepared by 1T Corporation for <br /> the above referenced site. Adequate and necessary elements in the Workplan are the installation of 2 <br /> Monitoring Wells(MWs),soil and groundwater sample collection and analysis, and a proposed feasibility <br /> study. The Workplan is approved with the following conditions: <br /> I. The screened intervals for the proposed MWs 5 and 6 must be appropriate for the suspected <br /> contaminant lithological pathway. MW screens should be designed to extend above the groundwater <br /> level to allow for relevant sample collection. MWs currently located at this site are screened below the <br /> groundwater level and may not reflect actual groundwater conditions in regards to contamination. It <br /> may be necessary to construct additional MWs to evaluate groundwater near the source area and to <br /> intercept contaminants migrating off site. <br /> 2. Contact PHS/EHD for an inspection appointment prior to performing feasibility testing and MW <br /> construction. <br /> 3. Encroachment permit(s) and boring pen-nit application(s) concurrent with $89.00 permit fee(s) should <br /> be submitted to PHS/EHD by April 20,2000. <br /> 4. All work should be completed according to the above referenced Workplan within 90 days from <br /> the date of this letter. <br /> Please contact Carol Oz, Senior REHS at(209)468-3440 if you have questions regarding this letter. <br /> Donna Heran, REHS, Director <br /> Environmental Health Division <br /> Carol Oz, Senior REHS Margaret agorio, REHS <br /> Site Mitigation Unit IV Supervisor <br /> cc: Marty Hartzell-CVRWQCB <br /> Joel Coffman-EMCON <br /> A Division of San Joaquin County Health Care Services <br />