The 6th Five-Year Review , completed in 2023, concluded that the existing PRB was not functioning as intended and additional action was required. In October 2024, NHBB completed the construction of a replacement PRB. Additionally, the first phase of pre-design investigation for Enhanced In-Situ Bioremediation (EISB) was completed in Fall 2023.
| City | Peterborough |
|---|---|
| County | Hillsborough County |
| State | New Hampshire |
| Coordinates | 42.84890, -71.94680 |
South Municipal Water Supply Well is a federal Superfund site in New Hampshire. The Superfund program, created by Congress in 1980, addresses sites where hazardous substances have been released or threaten release into the environment. EPA scores potential sites using the Hazard Ranking System; those that score high enough are placed on the National Priorities List.
Current status: Construction complete. Physical construction of the cleanup remedy is complete, though long-term monitoring and institutional controls typically continue for years or decades. Groundwater treatment systems, for example, often run long after surface cleanup finishes.
EPA has identified 10 contaminants of concern at this site, including 1,1,1-trichloroethane, 1,1-dichloroethane, 1,1-dichloroethene. Contamination has been detected in sediment, groundwater, soil.
If you live near this site and have health concerns, your state health department can provide site-specific guidance. EPA maintains a community involvement program for most NPL sites, and site documents — including the Record of Decision, five-year reviews, and public health assessments — are typically available through EPA's Superfund site profile.