Lukachukai Mountains Mining District

⚠ Superfund · Listed on NPL

Now that LMMD is on the NPL, EPA will work through the Superfund process. Once a site is placed on the NPL, further investigation into the problems at the site and the best way to address them is required. This is called a remedial investigation and a feasibility study.

Location

CityCove
CountyApache County
StateArizona
Coordinates36.55887, -109.21712

Cleanup timeline

  1. Initial Assessment Completed — 10/30/2022
  2. Proposed to the National Priorities List — 03/29/2023
  3. Finalized on the National Priorities List — 03/07/2024
  4. Remedial Investigation Started — 08/16/2023
  5. Remedy Selected — Not Yet Achieved
  6. Remedial Action Started — Not Yet Achieved
  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

Understanding this Superfund site

Lukachukai Mountains Mining District is a federal Superfund site in Arizona. 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).

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.