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' indicated that the extent of hydrocarbons was much less widespread and at lower concentrations than in <br /> the middle well casings Samples from wells MW-2, MW-3, and MW-8 did not contain detectable <br />' concentrations of TPHg or benzene Samples from wells along the eastern property boundary (MW-1, <br /> MW-4, and MW-5) contained detectable concentrations of TPHg and benzene (Figure 8) The detection <br />' of hydrocarbons in groundwater from the lower well casings Included two more wells than the December <br /> 2000 results <br /> Analysis of groundwater samples from both monitoring events and both sample groups (the middle and <br />' lower well casing sample groups) indicated that the extent of hydrocarbons in groundwater is undefined <br /> to the south, east, and west of the U-Haul site The hydrocarbon plume at the groundwater surface <br />' appears to be centralized over the former dispenser islands However, the hydrocarbon plume at 60 to <br /> 100 feet bgs is more ambiguous Results from the March 2001 sampling of lower well casings indicated <br /> Ithat hydrocarbons are more widespread along the eastern property boundary These results are <br /> contradicted with near non-detect levels in samples from well MW-2 and MW-3, which include the <br /> middle portion of the site The two source areas associated with the lower well casing samples appear to <br /> be near well MW-4 and MW-6,which are near the eastern and western property boundaries,respectively <br /> I <br /> 07/10/01 <br /> Blaes Project#002-70959-02 16 bjm C 1BLAESIU-Hau1170950170950r101 doe <br /> I <br />