Landfill Development Co

⚠ Superfund · Ready for anticipated reuse

The L&D Company operates the leachate recovery system as part of its landfill closure permit. Collected leachate is sent to the local sewage treatment plant for disposal. Landfill gas is collected and flared (methane recovery was discontinued because it was no longer economically viable).

Location

CityMount Holly
CountyBurlington County
StateNew Jersey
Coordinates39.98056, -74.77084

Contaminants of concern

Contaminated media

Cleanup timeline

  1. Initial Assessment Completed — 10/01/1983
  2. Proposed to the National Priorities List — 09/08/1983
  3. Finalized on the National Priorities List — 09/21/1984
  4. Remedial Investigation Started — 10/03/1986
  5. Final Remedy Selected — 09/30/2004
  6. Remedial Action Started — 06/23/2006
  7. Final Remedial Action Started — 07/29/2009
  8. Construction Completed — 09/27/2010
  9. Deleted from National Priorities List — Not Yet Achieved
  10. Most Recent Five-Year Review — 01/12/2026

EPA references

Other Superfund sites in Burlington County

EPA-regulated facilities nearby

Understanding this Superfund site

Landfill Development Co is a federal Superfund site in New Jersey. 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 9 contaminants of concern at this site, including 1,2-dichloroethane, 2-butanone (methyl ethyl ketone), 4-methyl-2-pentanone (methyl isobutyl ketone). Contamination has been detected in groundwater.

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.