Cleaning Up Polluted Water Bodies with Water Pollution Reduction Plans (TMDLs) in New England – Region 1
EPA Region 1 serves Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont and 10 Tribal nations.
Basic Information
- What is a Total Maximum Daily Load or TMDL?
- What is the Impaired Waters List (303(d) list)?
- What is the Clean Water Act
Region 1 HOT Topics
- Connecticut’s Jointly-Developed Bantam Lake Nutrient TMDLs and NPS Watershed-Based Plan
- Opti-Tool: EPA Region 1's Stormwater Management Optimization Tool
- Information on the Lake Champlain Phosphorus TMDL [UPDATED 2023]
Find Specific TMDLs and Impaired Waters
- Find a TMDL, Advance Restoration Plan, or Protection Plan in Region 1
- Find an Impaired Water or a State 303(d) List in Region 1
What is the 303(d) Vision?
Additional Information and Tools
- Region 1 TMDL and 303(d) Listing Program Contacts
- Region 1 Reports, Selected Regional Projects, and Fact Sheets about TMDLs and Impaired Waters
- Integrated Reporting (IR) Guidance documents
- Summary of State and Regional Water Information (Click on a State/map for its information) [updating in progress]
- Detailed Information on TMDLs and Impaired Waters (Expert Database Query)
- How's My Waterway?
- ATTAINS database
