Lake City Army Ammunition Plant Northwest Lagoon

⚠ Superfund · Cleanup underway

Current activities include operation of in-place remedy systems and continued optimization. Semiannual inspections are held to ensure Land Use Controls remain in place and are effective. Periodic groundwater monitoring continues for remedies encompassing groundwater media. Work is being done to prepare for the expansion of a thermal treatment system in OU3.

Location

CityIndependence
CountyJackson County
StateMissouri
Coordinates39.10300, -94.27830

Contaminants of concern

Contaminated media

Cleanup timeline

  1. Initial Assessment Completed — 03/11/1988
  2. Proposed to the National Priorities List — 10/15/1984
  3. Finalized on the National Priorities List — 07/22/1987
  4. Remedial Investigation Started — 08/01/1987
  5. Remedy Selected — 09/29/1998
  6. Final Remedy Selected — 12/28/2009
  7. Remedial Action Started — 07/31/2000
  8. Construction Completed — Not Yet Achieved
  9. Deleted from National Priorities List — Not Yet Achieved
  10. Most Recent Five-Year Review — 08/28/2025

EPA references

Other Superfund sites in Jackson County

EPA-regulated facilities nearby

Understanding this Superfund site

Lake City Army Ammunition Plant Northwest Lagoon is a federal Superfund site in Missouri. 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 1,1,1-trichloroethane, 1,1,2,2-tetrachloroethane, 1,1,2-trichloroethane. Contamination has been detected in soil, groundwater.

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.