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i <br /> SOIL AND GROUNDWATER REMEDIATION REPORT <br /> FORMER CARANDO MACHINE WORKS <br /> 420 NORTH MADISON STREET <br /> Stockton,California <br /> 1.0 INTRODUCTION <br /> This report documents the soil and groundwater remediation work performed at the former <br /> Carando Machine Works Site(Site) at 420 North Madison Street(Figures 1 &2). The City of <br /> Stockton(City)owns the Si Site, &Rollo, Inc. (Treadwell&Rollo)was retained by <br /> the City for environmental consulting services. The San Joaquin County Environmental Health <br /> Department(SJCEHD) is overseeing the soil and groundwater characterization and remediation <br /> work at the Site related to releases from underground storage tanks(USTs) at the former on-site <br /> gasoline service station. <br /> The objective of this remediation project was to mitigate soil and groundwater contamination <br /> from leaking USTs and to place an oxygen releasing compound in the subsurface to expedite and <br /> assist in-situ bioremediation of the petroleum contaminants. During April 2005,the soil <br /> remediation was conducted in conformance with the 14 February 2005 workplan titled <br /> Remediation and Groundwater Monitoring Workplan, Former Carando Site, 420 North Madison <br /> Street, Stockton, California(Treadwell&Rollo 2005a),which was approved by the SJCEHD in <br /> a letter.dated 3 March 2005(SJCEHD 2005a). The approval letter is included in Appendix A. <br /> This report presents the following: <br /> 1. Our findings regarding previous site uses and investigations; <br /> 2. Soil and groundwater remediation methodologies; and <br /> 3. Sampling results and laboratory analytical methods used during our remediation program <br /> I <br /> i <br /> I� <br />