List of Contaminated or Potentially Contaminated Sites in Connecticut
The Contaminated or Potentially Contaminated Sites List is now housed at Connecticut Open Data and is updated weekly.
List of Contaminated or Potentially Contaminated Sites | Connecticut Data
Sites on the list originated from:
- Leaking Underground Storage Tank sites
- PCB sites
- Release-Based Cleanup Program sites
- Property Transfer Program sites
- Voluntary Remediation Programs sites
- Brownfields sites
- Environmental Use Restriction sites
- Federal Remediation sites (Superfund Enterprise Management System)
- State Remediation sites
- Significant Environmental Hazard sites
- Landfill Monitoring sites
- RCRA Corrective Action sites
- Sites with Remediation Enforcement actions requiring investigation and remediation of pollution
Additional site information is available at DEEP Document Online Search Portal. (See Remediation Division Documents for tips on finding files)
For information about leaking underground storage tank sites, contact the LUST Program at DEEP.Leakingust@ct.gov or 860-424-3376.
To obtain more information about Remediation sites, contact the Remediation Division at DEEP at 860-424-3705.
Content Last Updated April 8, 2026