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. The list of Remediation sites and Leaking Underground Storage Tank sites are now separate.  There is a description for each list explaining how the data was derived, which users should read.  Under CT Data in the top left corner of the screen, click on "data' to see the lists.

Sites on the Remediation list originated from:

Additional site information is available at DEEP Document Online Search Portal. (Remediation file scanning is being done in 2022-23. Some information may be temporarily unavailable.)

For information about leaking underground storage tank sites, contact the LUST Program at or 860-424-3376

To obtain more information about Remediation sites, contact the Remediation Division at DEEP at 860-424-3705.

Content Last UpdatedMay 21, 2024