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Preliminary Site Assessment Work Plan KISHIDA PROPERTY 860 East Pine Street,Lodi, California 1.0. INTRODUCTION At the request of Mr. Russell Kishida,Advanced GeoEnvironmental,Inc. (AGE)has prepared this Preliminary Site Assessment Report for the property located at 860 East Pine Street,Lodi,California (site). A plan of the site is illustrated on Figure 2. This report was prepared as required by the California Regional Water Quality Control Board - Central Valley Region (Regional Board) by a letter dated 02 July 2008 (Appendix A) and is in accordance the Regional Board's guidelines for Spills, Leaks Investigations Cleanup (SLIC) sites. 2.0. BACKGROUND The site is located in an industrial and residential area at 860 Pine Street, Lodi, California. The property is rectangular in shape, and the surface primarily consists of dirt and gravel. Prominent features on the site include a building on the northern portion, and a large canopy on the south western portion of the property(Figure 2). In their letter dated 07 May 2008,the San Joaquin County Environmental Health Department(EHD) reported previous business owners allegedly disposed of used oil,waste solvents,waste paint,waste diesel fuel and waste hydraulic fluids onto dirt and gravel on the site between 2004 and 2007. On 18 January 2008,a site inspection revealed stained areas on the property and several abandoned drums. Hazardous waste containers were properly disposed of at the Household Hazardous Waste Consolidation Facility; however several stained areas remain on-site (EHD letter,May 2008). 3.0. PROCEDURES Fieldwork was performed in accordance with proceduresoutlined in the AGE-prepared Preliminary Site Assessment Work Plan dated 24 September 2008 and approved by the Regional Board by a letter dated 20 October 2008 (Appendix A). The work was performed in accordance with the Regional Board guidelines for the subsurface investigation of Spills, Leaks Investigations Cleanup (SLIC) sites. The EHD boring permit is included in Appendix B. 3.1. ADVANCEMENT OF SOIL BORINGS On 24 through 25 November 2008, four soil borings (P-2 through P-5) were advanced on-site, to depths of 10 feet below surface grade(bsg); two soil borings(P-1 and P-6)were advanced to depths Advanced GeoEnvironmental,Inc.