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ERM-West, nc. <br /> SU1te 2.60• 1777 Botelho Drive Walnut Creek.Cal iforniii 91596-5012 •(.115)916'0455•Te;uia+(415)9:16.9968 <br /> October 24, 1991 <br /> 1' .4 <br /> Ms . Mary Meays (;; r"' 1y .i«.q1 <br /> Public Health Services/Environmental Health <br /> San Joaquin rrsunty <br /> R O.Box 2009 <br /> 1601 East Hazelton Avenue <br /> Stockton, CA. 95201 <br /> SUBJECT: Interim Problem Assessment Re,ort- 1515, 1325, and 1541 <br /> West Weber Ave.,Stockton,CA(Site Code: 1284) <br /> Dear Mary: <br /> On behalf of Catellus Development Corporation, we hereby submit two <br /> copies of this interim Problem Assessment Report (PAR) for the three <br /> former underground tank locations at 1515, 1325,and 1541 West Weber <br /> Avenue in Stockton, California. This PAR has been prepared in <br /> accordance with the Tri-Regional Board Staff Recommendations for <br /> Preliminary Evaluation and Investigation of Underground Tank Sites, <br /> dated August 10, 1990. <br /> The, purpose of the enclosed report is to summarize the site <br /> characterization and investigation activities to date for the three tank <br /> removals. A preliminary evaluation of remedial alternatives is also <br /> presented for two of the three tank site locations where leaks have occurred. <br /> Underground storage tanks have been removed from each of the three <br /> locations of the West Weber property, specifically at the addresses 1515, <br /> 1325,and 1541. At 1515 and 1325 West Weber, a release of petroleum <br /> products from the tanks has been detected. The extent of the release from <br /> the 1515 West Weber location has been characterized and interim remedial <br /> measures are currently being considered. The extent of the release from <br /> the property located at 1325 West Weber,however, has not been <br /> characterized and will require further investigation. <br /> Leaks were not evident from the tank removed from the 1541 West Weber <br /> location. Sample results indicated that constituents were not detected in <br /> either soil or ground water beneath the former tank. The original <br /> supporting laboratory reports were submitted to the San Joaquin County <br /> Environmental Health Division on October 11, 1991; copies have also been <br /> included in the PAR as an appendix. 'These laboratory reports confirm that <br /> the tank removal at 1541 West Weber was a clean closure. <br /> M Thr <br /> An atfil.ate 61 The£nviranmental Resources Management Cgoup with O$Le5 wcirld•mde <br />