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o Groundwater samples were analyzed for TPH gasoline, TPH diesel, <br /> BTEX compounds, and halogenated volatile organics (EPA 624). <br /> Samples obtained from Wells U-1 and U-2 contained 140 ppb and <br /> 670.ppb gasoline, respectively. Wells U-3 and WSW-1 contained no <br /> detectable levels of any of the analyzed compounds. Diesel was not <br /> detected in any of the wells sampled. <br /> o The water supply well survey revealed nine documented water supply <br /> wells within a 1/2-mile radius of the site. None of these wells are <br /> currently located downgradient of the site. <br /> o PACIFIC recommends the installation. of' three additional <br /> groundwater monitoring wells to 'further evaluate'. the extent of <br /> hydrocarbons in the soil and groundwater.- Four:shallow soil borings <br /> are also`recommended.to more accurately determine the potential <br /> source.and exteni of hydrocarbon-affected soils. <br /> ZI <br /> i <br /> i <br /> i <br /> 3100101/REPORTli February 13,1991 <br /> i <br />