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Canepa's Car Wash <br /> 6230 Pacific Avenue, Stockton, California <br />' Interim Status Report, Phase HInvestigation <br /> 1 <br /> 1.0 Project Identification <br />' The Canepa's Car Wash has been required t <br /> P q o install four(4) groundwater monitoring wells <br />' as a result of an on-site fuel line leak These wells will provide groundwater gradient <br /> information and help to define the extent of the contamination plume in the soil and <br /> groundwater The request was made by the San Joaquin County Environmental Health <br /> Department, and is a part of an on-going site investigation <br />' 2.0 Site Description and History <br /> Canepa's Car Wash has been operating at this site for nearly 20 years Between February <br /> 25 and March 3 of 1993, three (3) underground fuel tanks, fuel lines and dispensers were <br /> removed in order to replace them with the required double wall system, It was discovered <br /> that the fuel lines had leaked and that the tanks had apparently been over-filled <br /> Approximately 500 cubic yards of soil were removed from the tank excavation area The <br /> soils were tested by a certified Iaboratory and transported under manifest as a non- <br /> hazardous waste to Forward Landfill in Stockton, California for disposal Forward <br /> Landfill is a properly licensed Class H disposal facility to receive soils of this nature and <br /> level of contamination <br /> The site has had a single soil boring installed to the groundwater table that showed the <br /> groundwater had been impacted There is also a network of nine soil vapor extraction <br /> wells installed under the dispenser island, and a combustion system designed to treat the <br /> soil contamination problem has been awaiting permits <br /> 3.0 Scope of Work <br /> Between September 28 and 30, 1993, WHF, Inc , installed four (4) groundwater <br /> monitoring wells at this site MW-1, a four-inch (4") monitoring well, was installed <br /> immediately east of the soil vapor extraction well network (Figure 2) MW-1 also has the <br /> potential to be used as an extraction well MW-2, a two-inch (2") monitoring well, was <br /> installed in the a%, munediately south of the sosl vapor extraction well network 1'VfW-3, <br /> a two-inch (2") monitoring well, was installed at the southeast corner of the main building <br />