Learn the Issues

Where This Occurs: Air

Airborne nitrogen compounds, especially nitrogen oxides, contribute to the formation of air pollutants like smog, which can restrict visibility and affect human health.

Best Management Practices (BMP) and Treatment Technologies Clearinghouse

Public Comments and Responses on National Nutrient Strategy

Public Comments and Responses: National Nutrient Strategy

Peer Review Comments and Responses on National Nutrient Strategy

Mystic River Watershed Steering Committee Meeting, March 7, 2012

Document(s) from the March 7, 2012 Steering Committee Meeting for the Mystic River Watershed.

Regional Streamflow Duration Assessment Methods

Regional SDAMs for the United States classify streams as perennial, intermittent, or ephemeral at the stream reach scale. Learn about SDAMs, their development, and how to apply these field methods using the web application

Renewed Call to Action to Reduce Nutrient Pollution and Support for Incremental Actions to Protect Water Quality and Public Health (2016)

EPA Memo: Renewed Call to Action to Reduce Nutrient Pollution and Support for Incremental Actions to Protect Water Quality and Public Health - September 2016

Inter-Agency Engagement on Nutrient Reduction

Information related to Inter-Agency Engagement on Nutrient Reduction.

EPA’s Water Quality Trading Policy: Promoting Market-Based Mechanisms for Improving Water Quality

Final presentation slides from EPA’s March 5, 2019 webinar on the memo: Updating EPA’s Water Quality Trading Policy to Promote Market-Based Mechanisms for Improving Water Quality. This memo seeks to modernize the agency’s water quality trading policies

Water Quality Certifications on Tribal Lands and Lands of Exclusive Federal Jurisdiction in EPA's Pacific Southwest (Region 9)

This page provides information about EPA’s Clean Water Act (CWA) Section (§)401 Water Quality Certifications on Tribal Lands and Lands of Exclusive Federal Jurisdiction in EPA's Pacific Southwest (Region 9).

U.S. Army Corps of Engineers Nationwide Permit Certification Actions

Summary table of the EPA section 401 water quality certification actions for the 57 Nationwide Permits issued by the U.S. Army Corps of Engineers (USACE).

What You Can Do: In Your Yard

Lawns and gardens can be big sources of nutrient pollution. We can all do our part to make sure water running off our lawns doesn't carry nitrogen and phosphorus into rivers, lakes and streams.

Where This Occurs: Coasts and Bays

Nutrient pollution impairs about two-thirds of the nation's coastal areas and more than one-third of the nation's estuaries.

Pesticide Worker Protection Standard “How to Comply” Manual

The “How to Comply” manual provides information for employers on complying with the worker protection standard for agricultural workers. It has been updated to cover the 2015 revisions to the WPS.

JRO, SBC, RAM, PCR, POC List

This page is a list of the Small Business Coordinators for the Disadvantaged Business Enterprise programs.

Where This Occurs: Lakes and Rivers

Nutrient pollution builds up in our nation's lakes, ponds, and streams. EPA's 2010 National Lakes Assessment found that almost 20 percent of the 50,000 lakes surveyed had been impacted by nitrogen and phosphorus pollution.

RFC 26006 - Unregulated Contaminant Monitoring Rule (UCMR) 5 Data Summary

Request for Correction 26006 documents submitted for review

Tier 3 Waters (Outstanding National Resource Waters) for EPA's Pesticide General Permit (PGP)

EPA’s list of tier three waters for the Pesticide General Permit (PGP) (Outstanding National Resource Waters).

What You Can Do: In Your Home

Our homes can be major sources of nutrient pollution. There are a few simple things you can do to prevent nutrient pollution around your home, including changing your cleaning supplies, cleaning after your pet, being energy efficient, and more.

EPA Region 3 (Mid-Atlantic)

Lists Contact Information & links to Key Issues & News & Events for EPA's Office in Region 3, Serving Delaware, District of Columbia, Maryland, Pennsylvania, Virginia, and West Virginia.