Newton County Mine Tailings

⚠ Superfund · Cleanup underway

The EPA is currently conducting response actions to residential yards, private drinking water wells and non-residential mining and milling wastes, contaminated soils and stream sediments. See the below map of the site. There is ongoing investigation work on residential yards, private drinking water wells, and surface water and sediment.

Location

CityNewton County
CountyNewton County
StateMissouri
Coordinates36.99210, -94.38480

Contaminants of concern

Contaminated media

Cleanup timeline

  1. Initial Assessment Completed — 07/23/1987
  2. Proposed to the National Priorities List — 04/30/2003
  3. Finalized on the National Priorities List — 09/29/2003
  4. Remedial Investigation Started — 09/29/2006
  5. Remedy Selected — 06/21/2010
  6. Remedial Action Started — 11/05/2014
  7. Construction Completed — Not Yet Achieved
  8. Deleted from National Priorities List — Not Yet Achieved
  9. Most Recent Five-Year Review — 11/05/2024
  10. Achieved Sitewide Ready for Anticipated Reuse — Not Yet Achieved

EPA references

Other Superfund sites in Newton County

EPA-regulated facilities nearby

Understanding this Superfund site

Newton County Mine Tailings 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.

Contaminants of concern include cadmium, lead, zinc. Contamination has been detected in solid waste, soil, sediment.

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.