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Preliminary Site Assessment Work Plan CURRY'S WAREHOUSE 3127 East Fremont Street, Stockton, California 1.0. INTRODUCTION At the request of Mr. Wiley Chandler, Advanced GeoEnvironmental, Inc. (AGE)has prepared the enclosed Work Plan for the Curry's Warehouse site located at 3127 East Fremont Street, Stockton, California. The location of the site is illustrated on Figure 1 - Location Map. A plan of the site is illustrated on Figure 2 -Site Plan. This Work Plan has been prepared as required by the San Joaquin County Public Health Services - Environmental Health Division (PHS-EHD) to obtain a drilling permit for performance of a subsurface investigation. This work plan is prepared in accordance with PHS-EHD and Central Valley Regional Water Quality Control Board (CVRWQCB) guidelines for the investigation of underground storage tank (UST) sites. The purpose of this investigation is to assess the potential presence of petroleum hydrocarbon and solvent compound impacts to soil and/or ground water related to the former site operations. Areas of potential environmental concern to be investigated include the former UST area, a suspected dry well area and an area formerly occupied by a truck repair facility. This Work Plan provides a description of the scope of work and procedures to be used in soil probe borings, soil and groundwater sample collection and analysis, and soil boring abandonment. 2.0. BACKGROUND The site is currently utilized as a food warehouse retail facility. Four warehouse structures presently occupy the site. Furthermore, it is AGE's understanding that one portion of the site was formerly utilized as a truck repair facility and another area was used as a truck repair and/or transmission repair facility. 2.1. UNDERGROUND STORAGE TANK REMOVAL It is AGE's understanding that one 4,000-gallon unleaded gasoline underground storage tank(UST) was installed in 1980 and then removed on 25 September 1989. The UST was a steel single-walled design. The UST was located behind the 3127 East Fremont Street structure (See Figure 2). Three soil samples were collected during the UST removal procedures: 1N, 1S, and Dispenser. Based on the laboratory results from the soil samples collected from the UST removal event,CHS-EHD personnel required further site investigation to delineate hydrocarbon impaction. Additional assessment was performed to evaluate the UST area andla closure letter was issued for the site. Advanced GeoEnviron mental,Inc.