Pilot Region-Based Optimization Program for Fund-Lead Sites in EPA Region 3. Site Optimization Tracker: Butz Landfill Superfund Site, Jackson Township, Monroe County, Pennsylvania Final rept

摘要

The five-year review was completed four months after the P&T construction, therefore, the five-year review recommended monitoring and evaluation of P&T performance. The environmental monitoring (20 wells, approximately ...) and P&T performance monitoring were analyzed and evaluated in monitoring reports. The site remedy as a whole is protective and functioning as designed. However, the upgradient end of the plume is not strongly affected by the remedial design. The extent of the TCE plume has not significantly changed since treatment began. The TCE concentrations in three extraction wells slowly decrease (wells 1 and 3) or remain stable (well 2). At EW-2, (the extraction well with the highest TCE concentrations), the TCE concentrations fluctuate between 1,000 ug/L and 2,000 ug/L. The site team is considering in-situ chemical oxidation and/or enhanced bioremediation to decrease the hot spot within the plume and shorten the time P&T operates.