Patuxent River Naval Air Station

⚠ Superfund · Cleanup underway

The Navy, with EPA concurrence, has conducted several five-year reviews of the site’s remedies. These reviews ensure that the remedies put in place protect public health and the environment, and function as intended by site decision documents.

Location

CityPatuxent River
CountySt Mary S County
StateMaryland
Coordinates38.27069, -76.41944

Contaminants of concern

Contaminated media

Cleanup timeline

  1. Initial Assessment Completed — 02/01/1985
  2. Proposed to the National Priorities List — 01/18/1994
  3. Finalized on the National Priorities List — 05/31/1994
  4. Remedial Investigation Started — 01/28/1991
  5. Remedy Selected — 07/29/1996
  6. Final Remedy Selected — Estimated Jun - Aug 2028
  7. Remedial Action Started — 08/06/1996
  8. Final Remedial Action Started — Estimated Dec 2027 - Feb 2028
  9. Construction Completed — Not Yet Achieved
  10. Deleted from National Priorities List — Not Yet Achieved

EPA references

EPA-regulated facilities nearby

Understanding this Superfund site

Patuxent River Naval Air Station is a federal Superfund site in Maryland. 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 1,1,2,2-tetrachloroethane, 1,1-dichloroethene, 1,2,3-trichloropropane. Contamination has been detected in groundwater, soil, sediment, surface water, soil gas, 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.