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... <br /> 11011121=111,111, <br /> The Seve rage Source ?nc <br /> 202/799-3030 <br /> May 25, 1988 <br /> TABLE 3 <br /> GROUNDWATER SAMPLZ ANALYSIS SUHMAIZY <br /> APRIL 4, 1988 <br /> SAMPLE TOTAL TPH AS TPH BY EPA TOTAL <br /> ID BTEh (ppb) GASOLINE (nob) 418.1 (onmZ PNAs {ppm <br /> MW-1 <0.5 <1 .0 <1 .0 <1 .0 <br /> MW-2 <0.5 <1 .0 <1 .0 <1.0 <br /> MW-3 <0.5 <1 .0 <1 .0 <1.0 <br /> Method Detection <br /> Limit 0.5 1.0 i .0 1.0 <br /> SghL"4Ar'ZY <br /> As revealed from the laboratory analyses, the detectable <br /> levels of TPH by EPA Method .418.1 -and FNAs in soil correspond <br /> with compounds once store on-site. EPA Method 418.1 .reveals <br /> heavier hydrocarbons characteristic of the diesel range. <br /> Similarly, the PNA analysis reveals compou^ds such as naphthalene <br /> characteristic of even heavier end hydrocarbons found within <br /> bunker oil. The relatively low concentrations of TPH and PNAs <br /> within the soil suggests that the majority of hydrocarbons were <br /> most likely excavated during the tank removal operations. <br /> Groundwater, conversely. has not been impacted acccrding to the <br /> most recent laboratory results. The viscous nature of the <br /> hydrocarbons present :within the underground storage tank have <br /> apparently impeded migration through the sandy soils underlying <br /> the site. <br /> E i� <br />