Air Force Plant 4 General Dynamics

⚠ Superfund · Construction complete

The Fifth FYR is has been completed by the United States Air Force (USAF). AFP4 is currently in the remedial action (RA) phase of the Superfund process following the completion of a Record of Decision Amendment (RODA) that removed the full-scale ground water pump and treat system as the remedy of choice and instilled Monitored Natural Attenuation (MNA) as...

Location

CityFort Worth
CountyTarrant County
StateTexas
Coordinates32.77778, -97.45000

Contaminants of concern

Contaminated media

Cleanup timeline

  1. Initial Assessment Completed — 11/01/1983
  2. Proposed to the National Priorities List — 07/22/1987
  3. Proposed to the National Priorities List — 10/15/1984
  4. Finalized on the National Priorities List — 08/30/1990
  5. Remedial Investigation Started — 08/20/1990
  6. Final Remedy Selected — 08/26/1996
  7. Remedial Action Started — 08/01/1999
  8. Final Remedial Action Started — 01/26/2024
  9. Construction Completed — 09/15/2006
  10. Deleted from National Priorities List — Not Yet Achieved

EPA references

Other Superfund sites in Tarrant County

EPA-regulated facilities nearby

Understanding this Superfund site

Air Force Plant 4 General Dynamics is a federal Superfund site in Texas. 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: Construction complete. Physical construction of the cleanup remedy is complete, though long-term monitoring and institutional controls typically continue for years or decades. Groundwater treatment systems, for example, often run long after surface cleanup finishes.

EPA has identified 10 contaminants of concern at this site, including 1,1-dichloroethane, 1,2-dichloroethene (cis and trans mixture), barium. Contamination has been detected in groundwater, soil, 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.