Connecticut Department of Energy & Environmental Protection

DEEP headquarters at 79 Elm Street in Hartford is currently closed due to recent water damage impacting multiple areas of the building. We are working to remediate the situation and get the building back open to staff and the public as soon as possible. While the building is closed, Staff continue to work either remotely or in alternate locations. We continue to be able to receive documents via U.S. Mail or courier service, and our electronic file submittal protocols remain unchanged. For updates, please click here

Brownfields in Connecticut

General Oil TerminalFormer General Oil Terminal now Goodwin College

What is a brownfield?

Connecticut defines a brownfield as any abandoned or underutilized site where redevelopment, reuse or expansion has not occurred due to the presence or potential presence of pollution in the buildings, soil or groundwater that requires investigation or remediation before or in conjunction with the restoration, redevelopment, reuse and expansion of the property. These unknown environmental liabilities often prevent communities, developers and investors from restoring these properties to productive use and revitalizing impacted neighborhoods.

The Connecticut Brownfields Program encourages the cleanup and redevelopment of contaminated properties by providing resources to address the concerns associated with brownfield sites including technical assistance, liability relief programs and, in some cases, funding.

Brownfield Grant Round 3 is now open:  DEEP’s CERCLA 128(a) Brownfield Grant is funded through the EPA’s supplemental CERCLA grant to administer to brownfield sites for the purpose of conducting environmental assessment and cleanup activities. The focus of the grant is on projects that will enable the creation, preservation, or addition of park space, greenways, or other publicly accessible recreational space. 
Closing date Friday, December 5th at noon.

Content Last Updated November 21, 2025