Laserfiche WebLink
EXECUTIVE SUMMARY <br /> Upgradient Environmental Consultants visited the Valley Motors dealership on September 27 to <br /> measure water depths and collect groundwater samples The depth to groundwater is about 1 foot <br /> more than it was in June, and now averages 314 feet below grade Depth measurements indicate <br /> that groundwater currently flows to the southeast s <br /> After measuring the depth to groundwater,the four monitoring wells were purged using the surge <br /> and purge method and water samples were collected with disposable Teflon bailers, poured into 40- <br /> ml vials and preserved for laboratory analysis The samples were analyzed for TPH-gasoline using <br /> EPA method 602 and for BTEX using EPA method 8020 <br /> Hydrocarbon concentrations declined in some wells and rose in others The changes were slight in <br /> VM-3 and VM-4, but were much larger in VM-1 and VM-2 The pattern was not consistent and is <br /> not understood at this time Some declines may be due to the fact that a smaller volume of water <br /> was purged this quarter, but this does not explain the increases in other wells <br /> 1 <br /> 1 <br /> 5 <br />