Lehillier Mankato

⚠ Superfund · Ready for anticipated reuse

EPA is conducting the sixth five-year review of the LeHillier/Mankato Superfund site. Its completion is expected by May 2026. The five-year review gives the public an opportunity to comment about site conditions or concerns.

Location

CityLehillier
CountyBlue Earth County
StateMinnesota
Coordinates44.15333, -94.03833

Contaminants of concern

Contaminated media

Cleanup timeline

  1. Initial Assessment Completed — 07/01/1982
  2. Proposed to the National Priorities List — 12/30/1982
  3. Finalized on the National Priorities List — 09/08/1983
  4. Remedial Investigation Started — 12/30/1983
  5. Final Remedy Selected — 09/27/1985
  6. Final Remedial Action Started — 03/31/1988
  7. Construction Completed — 04/08/1992
  8. Deleted from National Priorities List — Not Yet Achieved
  9. Most Recent Five-Year Review — 09/30/2021
  10. Achieved Sitewide Ready for Anticipated Reuse — 08/26/2010

EPA references

EPA-regulated facilities nearby

Understanding this Superfund site

Lehillier Mankato is a federal Superfund site in Minnesota. 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.

Contaminants of concern include tetrachloroethene, trichloroethene. 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.