Keddy Mill

⚠ Superfund · Listed on NPL

Remedial Process : The RI Report, including the associated human health and ecological risk assessments, and FS Report were made available to the public concurrent with the Proposed Plan, documenting EPA's evaluation of remedial alternatives and selection of a preferred alternative, in June 2023.

Location

CityWindham
CountyCumberland County
StateMaine
Coordinates43.73495, -70.42451

Contaminants of concern

Contaminated media

Cleanup timeline

  1. Initial Assessment Completed — 11/16/2011
  2. Proposed to the National Priorities List — 12/12/2013
  3. Finalized on the National Priorities List — 05/12/2014
  4. Remedial Investigation Started — 06/09/2015
  5. Remedy Selected — 09/28/2023
  6. Final Remedial Action Started — Estimated Mar - May 2028
  7. Construction Completed — Not Yet Achieved
  8. Deleted from National Priorities List — Not Yet Achieved
  9. Most Recent Five-Year Review — Not Yet Achieved
  10. Achieved Sitewide Ready for Anticipated Reuse — Not Yet Achieved

EPA references

Other Superfund sites in Cumberland County

EPA-regulated facilities nearby

Understanding this Superfund site

Keddy Mill is a federal Superfund site in Maine. 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: Listed on NPL. This site is on EPA's National Priorities List, which identifies the most serious uncontrolled or abandoned hazardous waste sites in the country. Listing triggers federal cleanup authority and funding under CERCLA (the Superfund law).

EPA has identified 10 contaminants of concern at this site, including 1,4-dichlorobenzene, 2,3,7,8-tetrachlorodibenzo-p-dioxin (tcdd) toxicity equivalents (teq), 2-methylnaphthalene. Contamination has been detected in groundwater, soil, sediment, fish tissue.

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.