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esdo�y�Y r.nbanre4 Ye. 1. Introduction Sample Analysis and Laboratory Support—U.S. EPA Region 9 Laboratory and CLP laboratories will be utilized for analysis of contaminants of potential concern(COPCs). 1.2 Distribution List Copies of the final FSP will be distributed to the following persons and organizations: • Carolyn Douglas,U.S. EPA Region 9 • U.S. EPA Region 9 Quality Assurance Office • City of Stockton Redevelopment Agency • E&E START project files 1.3 Statement of the Specific Problem The CSRA plans to redevelop the site for commercial land use. Additional environmental data is needed to assist the CSRA and the NCLR with planning decisions. The specific problem associated with the property is the following: ' The City of Stockton Fire Department Station 3, located adjacent to and west of the subject site, is a former leaking underground storage tank(LUST) site that is documented to have released petroleum hydrocarbons to the groundwater. Based on the up-gradient hydrologic relationship with the subject property, activities at this facility may have caused groundwater contamination at the subject site. The assessment recommendations for this project are also based on review of the various historical documents prepared by other frons in relation to the site(see Section 10 for references). These historical documents indicate that deeper soil,greater than 5 feet below ground surface(bgs)have been characterized but no data exists for surface and shallow soils at the site. Recommendations for the specific scope of this assessment were based on historical observations by other firms. Once the new site assessment data for this project are generated, a report will be prepared and delivered to appropriate decision-makers. The results of this proposed assessment and those from previous investigations may be used to evaluate whether current conditions on the property pose a threat to human health during development or a continuing threat to residents and the general community after the property is developed. Potential threat and exposure concerns are as follows: • Excavation or grading of contaminated soil could result in exposure to contaminated soil for onsite workers and community members. • Migration of contamination from the property to groundwater aquifers could result in a threat to area groundwater. • Migration of contaminated groundwater from the City of Stockton Fire Department Station 3 located adjacent to and west of the subject site could result in contamination of groundwater beneath the subject site. 14m02e93.1401.01BR 1-2 EI C000dlo No.l