Climate Change
Addressing climate change presents residents, businesses, nonprofits, and municipalities a chance to create, evolve, and maintain a sustainable environment, a robust economy, and a higher quality of life today and tomorrow.
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Notice of tentative determination for the renewal Title V and Title IV permits for Hawkeye Energy Greenport in Greenport NY. Written comments are due by May 1, 2026.
Specialty Minerals, Inc., Adams, MA
Notice of public comment for an application submitted by Specialty Minerals, Inc. for a draft operating permit renewal in Adams, MA. Written comments are due by January 2, 2026.
Big Six Towers, Inc, Woodside NY
Notice of complete application for a minor modification to a Title V facility at Big Six Towers, Inc. in Woodside NY.
Richard M Flynn Power Plant, Holtsville NY
Notice of tentative determination for a renewal Title V and Title IV Permit for Richard M Flynn Power Plant in Holtsville NY. Written comments are due by May 1, 2026.
Port Jefferson Energy Center, Port Jefferson, NY
Notice of tentative determination for a renewal Title V and Title IV Permit for Port Jefferson Energy Center in Port Jefferson NY. Written comments are due by May 1, 2026.
Notice of Intent to Continue in Effect and Renew the Commercial General Permit
Notice of Intent to Continue in Effect and Renew the Commercial General Permit. Written comments due February 26, 2026.
(Originally posted on 12/31/2025) Notice of Intent to Revise the SIP for Air Quality: Attainment Demonstration for the 2008 Ozone NAAQS Contingency Measures and Motor Vehicle Emissions Budgets. A public hearing was not requested by February 18, 2026, therefore the public hearing originally scheduled for February 24, 2026 has been cancelled. Written comments are due by February 24, 2026.
Notice of Opportunity for Public Input on Bear Management Listening Sessions
Notice of Opportunity for Public Comment - Wake Boat and Wakesurf Study
2024 Draft Integrated Water Quality Report
The State of Connecticut Department of Energy and Environmental Protection (CT DEEP) is making available the draft State of Connecticut Integrated Water Quality Report for public review and comment from September 12 to October 14, 2025. Written comments on the draft IWQR must be received by CT DEEP by October 14, 2025.
Yale University Laboratory, New Haven
Notice of plans for final closure of Yale University Laboratory former Wright Nuclear Structures Laboratory. Written comments are due by August 8, 2025.
Notice of Intent to Issue Beneficial Use Determination Authorization
Notice of Intent to Issue Beneficial Use Determination Authorization to GE Vernova Operating Services. Written comments due November 22, 2025.
Climate Change
Addressing climate change presents residents, businesses, nonprofits, and municipalities a chance to create, evolve, and maintain a sustainable environment, a robust economy, and a higher quality of life today and tomorrow.
Recycling
Connecticut disposes of 2.4 million tons of trash annually, an estimated 1,370 pounds of trash per person per year. That's too much! Learn more about how we manage our waste and how to help us move toward more waste reduction, reuse and recycling.
DEEP Programs & Services
DEEP conserves, improves and protects Connecticut's natural resources and the environment, and makes cheaper, cleaner and more reliable energy available to people and businesses. Find DEEP's programs and services here.