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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Clean Water Fund Priority List Fiscal Year 2026 and 2027
Notice of public hearing will be held on February 5, 2026, at 10:30 a.m. to collect comments on the draft fiscal year 2026 and 2027 Priority List for the Clean Water Fund program. Written comments are due by February 27, 2026.
ReEnergy Holding's Petition for a Declaratory Ruling Regarding the Applicability of the Section 16-245a(g) Statutory Exemption from the Reduction in Value of Renewable Energy Certificates Generated by Biomass Facilities.
Clean Water Fund Priority List - Fiscal Year 2022 and 2023
Notice of public hearing to collect comments on the draft Fiscal Year 2022 and 2023 Priority List for the Clean Water Fund Program. Public hearing to be held on May 16, 2022. Members of the public must register for the hearing by May 9, 2022. Written comments are due by May 27, 2022.
Availability of Environmental Impact Evaluation
Public notice of availability of Environmental Impact Evaluation has been prepared pursuant to Section to Section 22a-1b of the Connecticut General Statues and Section 22a-1a-7 of the Regulations of Connecticut State Agencies for the proposed Regional Wastewater Study. Written comments are due by December 6, 2021.
Vanderbilt Chemical Corporation, Bethel
Public notice for the Closure of Interim Status submitted by Vanderbilt Chemical Corporation of plans for the final closure of four hazardous waste storage/management units. Written comments due by January 12, 2022.
Significant Industrial Users in Significant Non -Compliance During Federal Fiscal Year 2024
Notice of Significant Industrial Sewer Users that were in significant non-compliance with pretreatment standards and other pretreatment requirements during the preceding federal fiscal year 2024.
Notice of Significant Industrial Sewer Users that were in significant non-compliance with pretreatment standards and other pretreatment requirements during the preceding federal fiscal year 2023.
National Estuarine Research Reserve (NERR), Lyme, Old Lyme, and Groton
Notice of a public hearing for an Environmental Impact Statement (EIS) scoping meeting required to designate portions of the Lower Connecticut River, Bluff Point, Haley Farm State Park and adjacent areas of Long Island Sound as part of a proposed National Estuarine Research Reserve (NERR). Public hearing to be held on August 4, 2020. Written comments due by August 18, 2020.
Notice of Radioactive Materials and Sources of Ionizing Radiation Permanent Regulation
Notice of a regulatory amendment to adopt a permanent replacement for emergency regulations effective on 25 September 2025 and scheduled to expire on 24 March 2026. In doing so, this proposal maintains the Department’s enforcement authority over the use of radioactive materials and other sources of ionizing radiation. A public hearing was not requested by October 17, 2025, therefore the public hearing originally scheduled for October 30, 2025 has been cancelled. Written comments are due by November 3, 2025.
Public Notice of Availability of Watershed Documents
Public notice of availability of three draft documents, the Lake Nutrient TMDL Core Document, The Bantam Lake TMDL, and Bantam Lake Watershed-based Plan. A virtual public informational meeting will be held on July 29, 2021 via zoom. Written comments are due by August 19, 2021.
Availability of Environmental Impact Evaluation, Bridgeport
Notice of availability of environmental impact evaluation for both wastewater treatment facilities that serve Bridgeport's combined sewer overflow (CSO) communities - West side plant and East side plant. Comments are due by July 23, 2021.
Significant Industrial Users in Significant Non-Compliance during Federal Fiscal Year 2021
Notice of those Significant Industrial Sewer Users that were in Significant Non-compliance with pretreatment standards and other pretreatment requirements during the preceding federal fiscal year 2021.
Notice of informational meeting for an application submitted by Aquarion Water Company of Connecticut. Informational meeting to be held on August 26, 2020.
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.