Lawrence Aviation Industries Inc

⚠ Superfund · Ready for anticipated reuse

The EPA proposed to delete the land, soil, and groundwater (not the groundwater plume) portion of the LAI Superfund site from the NPL in August 2024 based on its finding, with NYSDEC agreement, that the cleanup at these portions of the site is protecting people and the environment, and no further work is needed.

Location

CityPort Jefferson Station
CountySuffolk County
StateNew York
Coordinates40.92814, -73.06919

Contaminants of concern

Contaminated media

Cleanup timeline

  1. Initial Assessment Completed — 09/01/1984
  2. Proposed to the National Priorities List — 10/22/1999
  3. Finalized on the National Priorities List — 02/04/2000
  4. Remedial Investigation Started — 07/26/2001
  5. Final Remedy Selected — 09/29/2006
  6. Remedial Action Started — 09/30/2008
  7. Final Remedial Action Started — 09/24/2009
  8. Construction Completed — 08/01/2014
  9. Deleted from National Priorities List — Not Yet Achieved
  10. Most Recent Five-Year Review — 03/24/2025

EPA references

Other Superfund sites in Suffolk County

EPA-regulated facilities nearby

Understanding this Superfund site

Lawrence Aviation Industries Inc is a federal Superfund site in New York. 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 aroclor 1254, aroclor 1260, chloroethene (vinyl chloride). Contamination has been detected in soil, groundwater, 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.