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  2. Impaired Waters and TMDLs

Impaired Waters and TMDLs in Region 2

Map of Region 2
New Jersey, New York, Puerto Rico, U.S. Virgin Islands, and eight Indian Nations
Basic Information 
What is a TMDL?
 
What is the Impaired Waters 303(d) List?
 
What are Surface Water Quality Standards?

EPA Region 2 serves New York, New Jersey, Puerto Rico, the U.S. Virgin Islands, and 8 federally recognized Indian Nations. 

Water resources are central to the region’s aesthetics, economics and health. There are some 60,000 miles of rivers and streams in Region 2, including waterways of major importance such as the Hudson and Passaic Rivers, the ports of San Juan and the New York/New Jersey Harbor, Lake Ontario, Niagara Falls and the St. Lawrence Seaway. New York, New Jersey, Puerto Rico and the U.S. Virgin Islands have a combined 685 miles of ocean coastline. Clean and safe water is essential to the health and livelihood of the region’s 31 million residents.

Learn about impaired waters in:
  • U.S. Virgin Islands
  • Puerto Rico
  • New York
  • New Jersey

Recent Actions in
Region 2

  • Approval of New Jersey's 2022 303(d) List

  • Partial Approval/Partial Disapproval of New York's 2020-2022 303(d) list

  • Approval of Puerto Rico's 2024 303(d) List
  • Approval of Puerto Rico's 2022 303(d) List
  • Approval of U.S. Virgin Islands' 2022 303(d) List
  • Partial Approval/Partial Disapproval of New York's 2018 303(d) List

Search for Impaired Waters and TMDLs

Visit EPA's How's My Waterway to search for impaired waters and TMDLs in Region 2.

Region 2 Contacts

Contact Regional Staff

State Water Quality Programs

U.S. Virgin Islands

Puerto Rico 

New York

New Jersey

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 About Impaired Waters and TMDLs to ask a question, provide feedback, or report a problem.
Last updated on April 16, 2025
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