Hudson Refinery

⚠ Superfund · Ready for anticipated reuse

Site’s that are listed on the National Priorities List (NPL) are subject to the Superfund Cleanup Process . Remedial Action at the Site was completed in December 2013 and post construction completion activities, which consist of operations and maintenance of the implemented remedy, is on-going.

Location

CityCushing
CountyPayne County
StateOklahoma
Coordinates35.98556, -96.77972

Contaminants of concern

Contaminated media

Cleanup timeline

  1. Initial Assessment Completed — 07/01/1983
  2. Proposed to the National Priorities List — 04/23/1999
  3. Finalized on the National Priorities List — 07/22/1999
  4. Remedial Investigation Started — 04/30/2001
  5. Final Remedy Selected — 11/23/2007
  6. Remedial Action Started — 02/28/2010
  7. Final Remedial Action Started — 02/28/2010
  8. Construction Completed — 11/23/2010
  9. Deleted from National Priorities List — Not Yet Achieved
  10. Most Recent Five-Year Review — 07/16/2025

EPA references

EPA-regulated facilities nearby

Understanding this Superfund site

Hudson Refinery is a federal Superfund site in Oklahoma. 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: Ready for anticipated reuse. EPA considers this site ready for anticipated reuse, meaning cleanup has progressed enough for certain land uses. This does not necessarily mean all contamination has been removed — institutional controls like deed restrictions may limit how the land can be used.

EPA has identified 7 contaminants of concern at this site, including arsenic, asbestos, benzene. Contamination has been detected in soil, groundwater, sediment, surface water.

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.