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Interim Soil Remediation Work Plan Former ROY'S TOWING (Roy Knoll) 3570 East Miner Avenue,Stockton,California 1.0. INTRODUCTION At the request of Mr. Juan Barajas of Aliso Trariler Manufacturing Inc. Advanced GeoEnvironmental,Inc. (AGE)has prepared the enclosed Interim Soil Remediation and Sampling Work Plan for the property located at 3570 East Miner Avenue, Stockton.The location of the site is illustrated on Figure 1 as the Location Map.A plan of the site is illustrated on Figure 2 as the Site Plan. As required, the shallow soil areas which will be remediated are depicted on Figure 3. This plan is prepared in accordance with directive of the San Joaquin County-Office of the District Attorney-Special Operations made by Mr.David Irey.The work plan was prepared in accordance with Appendix A to Tri-Regional Recommendations-Reporting,dated 16 April 2004,prepared by the Central Valley Regional Water Quality Control Board(Appendix A-Reports)for the subsurface investigation of petroleum site sites. 2.0. SITE DESCRIPTION The site is located in east Stockton,at the eastern termination of Miner Avenue at the Highway 99 right-of-way. The site was recently used as a towing yard and storage yard for automobiles. One metal storage buildings located in the central are of the site is shown in Figure 2. 2.1. BACKGROUND AGE has been informed that the property was operated as an automobile towing yard,dismantling yard and/or an automobile body repair since the 1975.The eastern boundary of the site was purchase by the California Department of Transportation for the widening and improvement of the Highway 99 right-of-way approach to the western direction of the Stockton Crosstown Freeway (Highway 4). Historical analytical soil data is presented in Appendix A. 2.2. SITE ASSESSMENT In 1988,the Department of Health Services collected and analyzed shallow soil samples surrounding the on-site building. Elevated level of petroleum hydrocarbons and/or lead were detected in these samples. In 1991, the California Department of Transportation hired Kaldveer Associates to drill 33 soil borings in the eastern portion of the site for a right-of-way to depths as great as 10 feet below surface grade (bsg) and/�soil samples were collected from depths of 1 foot to 4.5 feet bsg. A reported Advanced GeoEnvironmental,Inc.