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:

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