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CLOSURE REQUEST REPORT Section No 3 0 Former American Forest Products Company 07/31/01 2801 West Lane Page 3-1 Stockton,California 3.0 SITE CHARACTERISTICS Thus section provides a summary of conditions at the site Included are discussions of site physiography and land use, site geology and,hydrogeology, and groundwater use in the vicinity of the site based on a survey of nearby wells 31 SITE DESCRIPTION AND LAND USE The former AFPC facility is located at 2801 West Lane, approximately 15 miles north of downtown Stockton, California (Figure 1) The former AFPC facility covers approximately 40 acres (Figure 2) This Closure Request Report is restricted in scope to the area of two former USTs, located in the extreme southern portion of the former AFPC facility (Figure 2) AFDC operated a wood manufacturing plant at the site between 1921 and 1987 In the spring of 1987, American Moulding and Millwork Company (AM&M) acquired the AFPC Stockton site and currently maintains similar operations A maintenance shop was located at the site in the southern end of the facility until its demolition in 1990 (Figure 3) The maintenance shop was used for storage of plumbing and electrical parts required for building maintenance Forklifts and motor vehicles were also serviced and refueled at the maintenance shop,thus requiring fuel storage and pump islands nearby According to old site plans, three USTs were located in the vicinity of the maintenance shop A 10,000- gallon UST and pump island were located on the western side of the building A 500-gallon UST, used for the storage of waste il, was located on the eastern side of the maintenance shop According to plant personnel, a 325-gallon underground gasoline or diesel tank also existed on the northern side of the building but was evidently removed owFl eve no record f the removal were kept The ages of the tanks are not known, although plant personnel believed the tanks were installed prior to 1960 This closure report is focused on impacts apparently derived from the 10,000- and 500-gallon USTs The site is located approximately 15 miles north of downtown Stockton, at an elevation of approximately 17 feet above mean sea level (msl) The topography of the site and surrounding area is relatively flat, sloping gently toward the west Regional surface water drainage is towards either the Calaveras River, located north of the site or the San Joaquin River, which hes to the west of the site The primary wind direction is from the west-northwest, although seasonal variation may occur This report focuses on the investigation area adjacent to the former maintenance shop building located at the southern end of the former AFDC facility A map of the entire facility showing the investigation site, including the location of the former maintenance shop and pump island, is shown on Figure 2 The maintenance shop was a corrugated steel building with a concrete floor and was 150 feet by 60 feet The shop was constructed in 1951 The site currently is vacant, and is bordered to the east by several abandoned buildings that were used by AFPC as storage sheds for lumber and various wood manufacturing equipment and offices The area of investigation is paved with asphalt The area in the immediate vicinity of the site consists of the Stockton Rural and San Joaquin cemeteries to the west, commercial and manufacturing facilities to the north and east, and residential properties to the south The nearest residences are located along Palm and Taft Avenues approximately 120 feet to the west and south of the site The nearest residences in the direction of groundwater flow are approximately 3,500 feet to the north-northeast K 1840191afp1afp_closure_rpt doc a