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�flry <br /> r <br /> s � <br /> UAS <br /> June 27, 2003 <br /> Ms Margaret Lagono 00434 <br /> San Joaquin County Environmental Health Department 06 a4 <br /> 304 East Weber Avenue,Third Floor <br /> Stockton, CA 95202-2708 <br /> Re: Closure Request for <br /> Former ARCO Station 434 <br /> 501 West Kettleman Lane,Lodi, California <br /> Dear Ms Lagorio <br /> URS Corporation Americas (URS) has prepared this letter on behalf of Atlantic Richfield Company <br /> (ARCO) to request regulatory closure of the above-named site as requested in your June 03, 2003 letter <br /> (Attachment A) This closure letter is prepared in accordance with Appendix B, Tri-Regional Board <br /> Staff Recommendations for Preliminary Investigations and Evaluation of Underground Tank Sates, No <br /> Further Action Requests (CVRWQCB, 1996) <br /> SITE BACKGROUND <br /> The site is a former gasoline station and AM/PM mim-mart located at 501 West Kettleman Lane in <br /> Lodi, California (Figures 1 and 2) As part of divestment activities, all USTs,dispensers, and associated <br /> piping were removed from the site The piping and dispensers were removed to August 2002, and the <br /> USTs were excavated and removed in October 2002 USTs and piping were also removed and replaced <br /> in 1999 as part of updgrade requirements The site is at an elevation of approximately 40 feet above <br /> mean sea level (USGS, 1976) The subject property is partially paved with areas of exposed soil where <br /> excavations and demolitions occurred <br /> Site Location <br /> I <br /> The site is located in the southern portion of Lodi, California on the northwest corner of West <br /> Kettleman Lane and South Hutchins Street A multi-tenant commercial/retail center is located south of <br /> West Kettleman Lane and a grocery store is located east of South Hutchins Street The site is also <br /> bounded by houses to the north and an office to the west <br /> Site Geology <br /> Drilling activities at the site have documented the subsurface geology to a total depth of approximately <br /> 80 feet bgs The subsurface geology is dominated by inter-bedded layers of clay, silt, and silt Ground- <br /> URS Group Inc <br /> Crown Corporate Center <br /> 2870 Gateway Oaks Drive Suite 300 <br /> Sacramento CA 95833 <br /> Tel 916 679 2000 <br /> Fax 916 679 2900 K\Wprocess\6 BP ARCO\004341Closure Request\Station 434 Closure Doc doc <br />