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PRELIMINARY INVESTIGATION AND EVALUATION REPORT <br /> January 1996 <br /> Paige's Towing <br /> 1807 Douglas Road <br /> Stockton, California <br /> ' 1.0. INTRODUCTION <br /> In accordance with the request of Mr. Bill Watkins of Paige's Towing,Advanced GeoEnvironmental, <br /> Inc. (AGE) has prepared this Preliminary Investigation and Evaluation Report (PIER) for 1807 <br /> Douglas Road, Stockton, California. The scope of work included the advancement of six soil <br /> probings and the collection and analysis of soil and ground water samples. The location of the site <br /> ' is illustrated on Figure 1 - Location Map. A plan of the site is illustrated on Figure 2 - Site Plan. <br /> The investigation was performed in accordance with the guidelines of both the San Joaquin County <br /> ' Public Health Services - Environmental Health Division (PHS-EHD) and Central Valley Regional <br /> Water Quality Control Board for the investigation of underground storage tank(UST) sites. <br /> 2.0. BACKGROUND <br /> 2.1. SITE DESCRIPTION AND USAGE <br /> The site is located at 1807 Douglas Road, on the northwest corner of the intersection of Douglas <br /> ' Road and Harrisburg Road, in a topographically flat area of the city of Stockton, San Joaquin.County, <br /> California. The site is within the southeast quarter of Section 20, Township 2 North, Range 6 East, <br /> Mount Diablo Base and Meridian (MDB&M). <br /> Paige's Towing, an automobile towing company, is currently located on the site. Paige's Towing <br /> ' presently utilizes one 10,000-gallon gasoline UST and one 10,000-gallon diesel UST at the site. A <br /> garage, an office, two dispenser islands and associated canopies are located on the property. <br /> Historically, the site was operated as a gasoline and service station. Surrounding land use is primarily <br /> ' residential, although a small strip mall is located immediately south of the property. <br /> ' 2.2. UNDERGROUND STORAGE TANK REMOVAL AND REPLACEMENT <br /> Two 10,000 USTs were removed from the site in 1985. The removed USTs were replaced with two <br /> ' new 10,000-gallon USTs. Soil samples were not collected from beneath the former USTs at the time <br /> of their removal. However, it is our understanding that an initial subsurface assessment of the <br /> property was performed in 1989. <br /> According to representatives of the PHS-EHD, soil samples collected during the initial assessment <br /> indicated that hydrocarbon-impacted soil was present beneath the former USTs and piping. However, <br />