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� v <br /> o <br /> A S S O C I A T E S I N C <br /> Remediation System Installation Report <br /> Farmer Property <br /> 610 North Hunter Street <br /> Stockton, California <br /> ATC Project No 54 62596 0001 <br /> 1.0 INTRODUCTION <br />' ATC Associates Inc hasre ared this Remediation System <br /> P p y Installation Report for the Farmer <br /> Property located at 610 North Hunter Street in Stockton, California All work was completed in <br /> general accordance with ATC's Interim Remediation Plan for the Farmer Property, 610 North <br /> Hunter Street, Stockton, California, dated October 24, 2001 San Joaquin County Environmental <br />' Health Division(SJCEHD) approved this workplan with minor modification on November 2, 2001 <br /> 2.0 SITE DESCRIPTION <br /> The site is located on the north side of Oak Street and the east side of Hunter Street, Stockton, <br /> California, as shown on Figure 1 The location is a mixed commercial and residential area The <br />' location of the existing monitoring wells, vapor extraction wells, building, former underground <br /> storage tanks (USTs), and other pertinent features are shown on Figure 2 The site is bound by <br /> Canepas Car Wash to the north, a vacant lot to the east, Oak Street to the south, and Hunter Street <br />' to the west <br /> 3.0 PREVIOUS ENVIRONMENTAL WORK <br />' On October 6, 1987, Al Williamson General Contractor, removed two 1,000-gallon leaded <br /> gasoline tanks and one 550-gallon waste oil tank from the locations shown on Figure 2 Soil <br /> samples collected after the tank removals contained elevated concentrations of petroleum <br /> hydrocarbons and volatile organic compounds (VOCs) <br />' On January 21, 1988, Falcon Energy, attempted to remove all VOC contaminated soil by <br /> overexcavating the former tank locations The former tank locations were excavated to a depth <br /> of approximately 22 feet below ground surface (bgs) The excavation was limited to the north by <br /> the on-site building The confirmation samples collected from the base of the overexcavation <br /> still contained elevated concentrations of volatile organics The overexcavated soil was disposed <br />' of at Forward Landfill <br /> On June 30 and July 1, 1997, Smith Technology personnel supervised advancement of seven soil <br /> borings, SBI through SB7, at the site to depths ranging from approximately 40 to 45 feet bgs at <br /> the site to investigate the horizontal and vertical extent of petroleum hydrocarbon soil and <br /> w lwordpro1625961repor1slfrp doc 1 <br />