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rather than gasoline, they probably had a source other than the gasoline tank on the Valley Motors <br /> property <br /> IGasoline was detected at a concentration of 2400 ppm at 25 feet in the soil, but no contaminants were <br /> detected below this depth Hunter and Associates also found that contamination does not extend below <br /> 25 feet No benzene was found below a depth of 21 feet in the Hunter study, nor was any found in the <br /> present mvestngatnon <br /> I Due to the presence of elevated concentrations of TCE, TPH, and BTEX in the groundwater, <br /> Upgradient recommends that VM-1 be placed on a quarterly monitoring schedule beginning January, <br /> 1996 We also recommend that PHS/EHD examine its files for potential off-site sources of volatile <br /> halocarbons (TCE, etc) It may be necessary for Valley Motors to contact nearby property owners and <br /> inform them that domestic wells that withdraw water from the shallow aquifer should not be used until <br /> the halocarbon risk has been further evaluated <br /> At the present time, the sidewalk area along Grant Street remains fenced and unpaved We recommend <br /> that tins excavation be resurfaced and paved and the fencing removed We also recommend that a Soil <br /> Remediation Plan be prepared to treat or dispose of the soil stockpile in the southwest corner of the <br /> property, and that drums of purge and decontamination water be pumped or transported to an <br /> appropriate disposal site <br /> I 5 <br /> I <br />