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  1. Home
  2. Impaired Waters and TMDLs

Nonpoint Source (Polluted Runoff) Water Pollution 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 Nonpoint Source (NPS) Pollution?
  • What are the Types of Nonpoint Source Pollution?
  • NPS Grant Program for States and Territories

Region 1 HOT Topics

  • Updated New England States' Nonpoint Source Management Program Plans
  • Nonpoint Source Program and Grants Guidelines for States and Territories (pdf) (3.93 MB, May 4, 2024, EPA 841-R-24-009)
  • Restoring Nonpoint Source Polluted Waters (2002-2018): Region 1 NPS success story map (pdf) (12.64 MB)
  • Celebrating New England's Tribal 319 Nonpoint Source Program Efforts: Tribal Nations' Success Story Presentation (pdf) (6.56 MB)

Find Specific NPS Projects and Watershed-Based Plans

  • Find a NPS Project in Region 1
  • Find a Watershed-Based Plan in Region 1

Other NPS Information

  • Find a State NPS Management Plan (select Region "01")
  • Polluted Runoff: NPS Pollution Home
  • Tribal Nonpoint Source Program
  • Technical Guidance and Tools
  • NPS Program Guidance (2013) (pdf) (762 KB)
  • NPS Success Stories
  • GRTS NPS Database
  • How's My Waterway?

Additional Region 1 Information

  • Region 1 EPA Nonpoint Source Program Contacts
  • Region 1 States' Nonpoint Source Program Contacts  (select Region "01")
Illustration: What is a watershed? [Credit: The Center for Watershed Protection]
What is a watershed?
[Credit: The Center for Watershed Protection]

Nonpoint source pollution (NPS), also known as polluted runoff, is caused by rainfall or snowmelt moving over or through the ground. As the runoff moves, it picks up and carries away natural and human-made pollutants, finally depositing them into lakes, rivers, wetlands, and coastal waters.

Because it is a diffuse source, underground pollution from poorly performing septic systems is also included.

Region 1

States' Nonpoint Source Programs

  • Connecticut
  • Maine
  • Massachusetts
  • New Hampshire
  • Rhode Island
  • Vermont

Related Regional Programs

  • Region 1 TMDL and Listing Program
  • Beach Monitoring Program
  • 604(b) Water Quality Management Planning Grants Program
  • Region 1 NPDES Permit Program

National Estuary Programs

  • National Program website
  • Buzzards Bay
  • Casco Bay
  • Long Island Sound
  • Massachusetts Bays
  • Narragansett Bay
  • Piscataqua Region

Regional Geographic Programs

  • Lake Champlain Basin Program
  • Long Island Sound Program
  • Southeast New England Program (SNEP)

Impaired Waters and TMDLs

  • Program Vision
  • Impaired Waters and TMDLs throughout the U.S
  • Technical Tools and Resources
Contact Us About Impaired Waters and TMDLs
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on February 18, 2025
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