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1117 Lone Palm Avenue <br /> ENVIRONMENTAL HEALTH Di VISION Suite e <br /> 304 E. Weber Ave. Third Floor 209 ,579. 2221 <br /> Modesto. CA 95351 <br /> P. O. Box 388, Stockton CA 95201 -0388 Fax 209 . 579. 2225 <br /> &�A Approved Jl <br /> A s s o c i A T e s I N c . Denied 0 <br /> Conrlitinnc <br /> Date 19, 1��1 _bY..PAM& .✓ <br /> December 30, 1998 <br /> 62596 <br /> F1 <br /> o <br /> Fa , : 11998 <br /> Mr. Ron Rowe <br /> San Joaquin County Public Health 31 <br /> Services, Environmental Health Division oy <br /> 304 Weber Avenue, 3rd Floor <br /> Stockton, California 95201 -0388 <br /> Subject: Workplan to Complete Groundwater and Soil Investigation at 610 North Hunter <br /> Street, Stockton, California <br /> Dear Mr. Rowe: <br /> ATC Associates Inc. has prepared this workplan, on behalf of Mr. and Mrs. Raymond Farmer, to <br /> complete the groundwater and soil investigation at the above referenced site (Figure 1 ). The <br /> proposed scope of work contained in this workplan is based on ATC ' s Summary Report of <br /> Subsurface Investigation dated August 14, 1998, and San Joaquin County Public Health Services, <br /> Environmental Health Division (PHS/EHD) correspondence dated November 18, 1998 . <br /> SITE LOCATION <br /> The site is located on the northeast comer of North Hunter Street and Oak Street in Stockton, <br /> California, as shown on Figure 1 . The location is primarily a commercial and residential area. <br /> The site is currently unoccupied . <br /> BACKGROUND <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 onsite building. The confirmation samples collected from the base of the overexcavation still <br /> contained elevated concentrations of volatile organics. The overexcavated soil was disposed of at <br /> Forward Landfill. <br /> w:\625964eports\shwkp.da 1 <br />