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BBL <br /> BLASU1ND,BOUCN&IEE.INC. <br /> VVEOD <br /> JUL 212006 0 <br /> ENVIRONMEN <br /> PE,Rlo �SERV/CESTH <br /> Transmitted via Federal Express <br /> July 26,2006 <br /> Ms. Lori Duncan <br /> Senior REHS <br /> San Joaquin County Environmental Health Department <br /> 304 East Weber Avenue, Third Floor <br /> Stockton,CA 95202-2708 <br /> Re: Work Plan for Additional Site Assessment near MW-1 <br /> Former Chevron Service Station 9-8227 <br /> San Joaquin County Environmental Health Department Site Code: 9327 <br /> 242 North Sutter Street <br /> Stockton,California <br /> BBL Project#: 45145 <br /> Dear Ms. Duncan: <br /> Blasland, Bouck & Lee, Inc., an ARCADIS company (BBL), on behalf of Chevron Environmental <br /> Management Company (Chevron), presents this work plan for additional site assessment activities (Work <br /> Plan) for the above-referenced site, based on a review of available site-related documents. The objectives <br /> of the proposed site investigative activities are to confirm the presence of four 550-gallon underground <br />�-' storage tanks (USTs) reportedly abandoned in place and delineate petroleum hydrocarbons in soil and <br /> groundwater near monitoring well MW-l. This Work Plan has been prepared in response to a letter from <br /> the San Joaquin County Environmental Health Department (SJCEHD), dated May 25, 2006 (included as <br /> Attachment 1), regarding the results of on-site investigations performed on behalf of the Sutter Office <br /> Center. As previously discussed with the SJCEHD, Chevron is providing this work plan to obtain data to <br /> further delineate impacts and confirm the presence of USTs at the site prior to developing a feasibility <br /> study for the remediation of soil and groundwater. On June 23, 2006, Margaret Lagorio (SJCEHD) <br /> agreed to postpone the feasibility study until Chevron could further assess conditions at the site. <br /> SITE DESCRIPTION <br /> The Site is located on the southwest corner of the intersection of East Miner Avenue and California Street <br /> in a commercial area in central Stockton. Sutter Office Center(SOC)currently owns the property located <br />.. at 242 North Sutter Street (formerly 334 to 448 East Miner Avenue). One multi-story office building is <br /> situated on the western side of the property. The remaining portions of the property include paved <br /> parking. <br /> J:\D0006\9-8227_00261022_2006 Work Plan doc <br /> 2033 North Main Street.•Suite 340•Walnut Creek,CA 94596•Duns#14-848-7635 <br /> Tel(925)274-1100•Fax(925)274-1103•www.bbl-inc.com•Offices Nationwide <br />