Detection of trichloroethene (TCE) during routine water sampling at a local Boys and Girls Club was traced to the Millsboro, Delaware Township wells where TCE was detected at levels greater than the Maximum Contaminant Level. Since the Township of more than 2,500 residents relies solely on these wells for water, it was important that a thorough and aggressive site assessment be conducted to support decisions regarding immediate and long-term aquifer restoration and human health protection actions. Immediacy of the situation required a flexible and adaptive decision process for selection of sample locations in the field based on real-time or next day data results.
The Environmental Visualization Software model assisted in determining membrane interface probe locations to further delineate the source of contamination for the completion of a Pilot Study Program at the source. An In Situ Chemical Oxidation (Modified Fenton’s Reagent) Pilot Study, including monitoring (groundwater and soil sampling via direct push, groundwater sampling of onsite wells, and subsequent membrane interface probe investigation), is currently in progress. A Pilot Study Report will be completed with recommendations and approach for full-scale in situ chemical oxidation remediation.