Ugi Columbia Gas Plant

⚠ Superfund · Ready for anticipated reuse

EPA has conducted the second five-year review of the site’s remedy. This review ensures that the remedies put in place protect public health and the environment, and function as intended by site decision documents.

Location

CityColumbia
CountyLancaster County
StatePennsylvania
Coordinates40.02621, -76.49839

Contaminants of concern

Contaminated media

Cleanup timeline

  1. Initial Assessment Completed — 02/01/1985
  2. Proposed to the National Priorities List — 06/23/1993
  3. Finalized on the National Priorities List — 05/31/1994
  4. Remedial Investigation Started — 04/04/1996
  5. Final Remedy Selected — 09/24/2007
  6. Final Remedial Action Started — 05/31/2011
  7. Construction Completed — 09/24/2007
  8. Deleted from National Priorities List — Not Yet Achieved
  9. Most Recent Five-Year Review — 05/05/2021
  10. Achieved Sitewide Ready for Anticipated Reuse — 11/05/2018

EPA references

Other Superfund sites in Lancaster County

EPA-regulated facilities nearby

Understanding this Superfund site

Ugi Columbia Gas Plant is a federal Superfund site in Pennsylvania. 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 10 contaminants of concern at this site, including 1,2,4-trimethylbenzene, 1,2-dihydroacenaphthylene, 1-methylnaphthalene. 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.