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TreadvvelORollo <br /> 23 December 2003 <br /> Project: 2597.10 EIEDRE� <br /> Jeffery Wong DEC 2 6 2003 j <br /> San Joaquin County Environmental Division <br /> 304 East Weber Street, Third Floor ENVIRONMENT r{�ALTN <br /> Stockton, California 95202 pERMITISERVICES <br /> Subject: Investigation Workplan <br /> 420 North Madison Street(Carando Site) <br /> Stockton, California <br /> Dear Mr. Wong: <br /> This workplan describes the investigation proposed for the Carando Site at 420 North Madison <br /> Street(Figure 1). Treadwell&Rollo has been retained by the City of Stockton to coordinate the j <br /> environmental issues at this site and three other sites within the North Shore Banner Island <br /> project currently being supervised by the San Joaquin County Environmental Health Department i <br /> (SJCEHD) in the underground storage tank program. The other three sites are: <br /> i <br /> 1. 404 West Fremont Street (Crystal Creamery) <br /> 2. 424 North Van Buren Street (Chase West) <br /> 3. 423 North Madison Street (Chase East) <br /> I <br /> Treadwell &Rollo and City of Stockton representatives met with you and Margaret Lagorio on <br /> 5 December 2003 and discussed the planned Banner Island Northshore redevelopment and how <br /> it will impact the four sites. <br /> BACKGROUND <br /> The site is currently being used as a metal working shop that covers the extent of the property. <br /> On 27 June 2003, Advanced GeoEnvironmental (AGE) conducted a groundwater investigation <br /> of the site for the City of Stockton prior to the City's purchase of the site. Aerial photographs <br /> and Sanborn maps show a previous gas station pump and a former service station existed in the <br /> northwest area of the site. The approximate locations of the former service station and pump <br /> islands are shown on figure 1. <br /> SITE GROUNDWATER CONDITIONS <br /> I <br /> Although the site does not contain any wells, groundwater monitoring at adjacent and nearby <br /> sites indicate a northeasterly groundwater flow direction. <br /> Treadwell&Rollo,Inc.Environmental&Geotechnical Consultants <br /> 555 Montgomery Street,Suite 1300,San Francisco,CA 94111 <br /> Telephone(415)955-9040 Facsimile(415)955-9041 <br />