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1 � <br /> PACT FI C <br /> ENVIRONMENTAL <br /> 4D GRO0P.�INQ_, <br /> FEB <br /> VFF <br /> L) <br /> Tg 1997 <br /> February 14, 1997 ENV) FEB <br /> � <br /> Project 329-133 7B PERtV117 /S' RFMC,�S�TH <br /> Ms Mary Meays <br /> San Joaquin County Environmental Health Division <br /> Site Mitigation Unit <br /> PO Box 388 <br /> Stockton, California 95201-0388 <br /> Re Revised Request for Site Closure <br /> Former Chevron Service Station 9-1918 <br /> 45 East Harding Way at El Dorado Avenue <br /> Stockton, California <br /> Dear Ms Meays <br /> This letter, prepared by Pacific Environmental Group, Inc (PACIFIC) on behalf of <br /> Chevron Products Company (Chevron), discusses the site history including site assess- <br /> ment, remediation, and monitoring activities presents current conditions and provides <br /> rationale for site closure The initial Request foi Clos-ure (PACIFIC, September 18, <br /> 1996) was revised based on the letter to Chevron from the San Joaquin County <br /> Environmental Health Division (SJCEHD) dated September 26, 1996 In a subsequent <br /> letter to Chevron, the SJCEHD presented further comments regarding the Revised <br /> Request for Site Closure dated November 12, 1996 and requested a work plan to install <br /> additional groundwater monitoring wells to evaluate groundwater quality trends This <br /> letter discusses the SJCEHD comments, presents further revisions to correct deficiencies <br /> commented upon, provides rationale for alleviating the need for the installation of further <br /> monitoring wells, and maintains that the site be evaluated for closure at the next <br /> technical review comrmttee meeting <br /> Included is the rationale for closure, an estimate of residual petroleum hydrocarbons in <br /> soil and groundwater, and an evaluation of the effect of the residual petroleum <br /> hydrocarbons on water quality, health, or other beneficial uses This letter was prepared <br /> in accordance with the closure documentation requirements outlined in Tri-Regional <br /> Board Staff Recommendations Appendix -Requesrs for Sire Closure (Central Valley <br /> -Regional Water Quality Control Board [RWQCB], March 1, 1994) <br />�i <br /> 2025 Gateway Place, Suite 440, San Jose, California 95110 (408)441-7500 FAX (408) 441-7539 <br />