Tooele Army Depot North Area

⚠ Superfund · Cleanup underway

EPA has divided the site into 16 operable units (OUs), to better address cleanup. OUs 1–3 and 11-14 include over 50 Resource Conservation and Recovery Act (RCRA) solid waste management units (SWMUs). All of the site’s groundwater and some source areas, are regulated under a state RCRA permit.

Location

CityTooele
CountyTooele County
StateUtah
Coordinates40.52646, -112.41037

Contaminants of concern

Contaminated media

Cleanup timeline

  1. Initial Assessment Completed — Not Yet Achieved
  2. Proposed to the National Priorities List — 10/15/1984
  3. Finalized on the National Priorities List — 08/30/1990
  4. Remedial Investigation Started — 08/16/1983
  5. Remedy Selected — 09/30/1994
  6. Remedial Action Started — 06/20/1995
  7. Final Remedial Action Started — Estimated Apr - Jun 2027
  8. Construction Completed — Not Yet Achieved
  9. Deleted from National Priorities List — Not Yet Achieved
  10. Most Recent Five-Year Review — 05/02/2023

EPA references

Other Superfund sites in Tooele County

EPA-regulated facilities nearby

Understanding this Superfund site

Tooele Army Depot North Area is a federal Superfund site in Utah. 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: Cleanup underway. Active cleanup is underway, meaning EPA has approved a remediation plan and work is in progress. Cleanup timelines vary widely — some sites take decades depending on contamination depth, groundwater involvement, and funding availability.

EPA has identified 10 contaminants of concern at this site, including 2,4-dinitrotoluene, antimony, arsenic. Contamination has been detected in soil, solid waste.

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.