This page offers background information on agriculture, harmful algal blooms, hypoxia, nitrogen, and phosphorus. You will also find links to training opportunities, teaching resources, EPA webcasts, and opportunities to take action to reduce nutrient pollution.
- EPA’s Nonpoint Source Pollution
- EPA’s Nonpoint Source- Agriculture
- Animal Feeding Operations
- EPA Agricultural Topics Related to Water Resources
- USDA-NRCS Water Quality
- Cornell Nutrient Analysis Laboratory
- Cooperative Extension Offices
- Natural Resources Conservation Service Conservation Practice Standards
- 2008 Farm Bill Provisions (from Natural Resources Conservation Service)
- EPA's National Agriculture Compliance Assistance Center
- Water Quality Information Center at the National Agricultural Library
- Conservation Technology Information Center
- North Carolina State University Water Quality Group
- Natural Resources Conservation Service Photo Gallery
- Cooperative Research and Extension Services
- USDA-NRCS Mississippi River Basin Healthy Watersheds Initiative
- Harmful Algal Blooms
- Research on Nitrogen and Phosphorus Pollution
- Conservation Effects Assessment Project (CEAP)
- Large Lakes and Rivers Forecasting Research Branch
- US Geological Survey, Toxic Substances Hydrology Program: Nutrients
- National Oceanic and Atmospheric Administration Center for Sponsored Coastal Ocean Research: Hypoxia and Nutrient Pollution
- National Atmospheric Deposition Program (wet deposition)
- National Atmospheric Deposition Program
- Nitrogen Pollution: From the Sources of the Sea
- Training Opportunities
- Wastewater Treatment
- Water Environment Research Foundation's Nutrients Knowledge Area
- Municipal Nutrient Removal Technologies Reference Document (September 2008)
- Nutrient Control Design Manual (August 2010) (PDF) (369 pp, 10 MB)
- Nutrient Control Design Manual: State of Technology Review Report (January 2009) (PDF) (104 pp, 3 MB)
- Decentralized Wastewater Treatment Webinar Series: Treatment Technologies, System Design, and Management Strategies
- EPA Webcasts
The Mississippi River/Gulf of Mexico Hypoxia Task Force Action Plan calls for the reduction of excessive nutrients to the Gulf of Mexico. As part of this overall effort, states are developing Nutrient Reduction Strategies. The individual state strategies need to outline how states will reduce nutrient impairments within their jurisdiction, improve the quality of life for citizens, and contribute to reducing the size of the hypoxia zone in the Gulf of Mexico. Each state’s Nutrient Reduction Strategy needs to answer four basic questions:
- What nutrient load reductions are achievable?
- How will these reductions be achieved?
- What are the implementation schedule and corresponding milestones for this effort?
- What is the value to each stakeholder of these reduction efforts?
The state strategies are to cover all major sources within the states.
Agriculture has been identified as the largest source of nutrients impacting the Gulf. The diversity of agriculture throughout the Upper Mississippi and Ohio River basins and the range of agricultural intensity between states requires that each state develop a state-specific plan to address agriculture.
These webcasts are an extension of a June 2011 workshop intended to help states in the basins develop the agricultural component for their State Nutrient Reduction Strategies. Please visit the following link to view access the State Nutrient Reduction Strategies Web Series. Search EPA Archive
Webinars available by contacting Cynthia Curtis at 202-566-0340 or email firstname.lastname@example.org.
- Wisconsin Nitrate Demonstration Project, November 13, 2013
Wisconsin Nitrate Demonstration Project Transcript
- Wetlands Supplement: Incorporating Wetlands into Watershed Planning, August 21, 2013
Wetlands Nutrients Webinar Transcript
- Analyzing NRCS Ag-BMP Effects on Water Quality-A Process for Matching Practices to the Problems, July 24, 2013
NRCS Nutrients Webinar Transcript
- Using Interactive GIS to Plan Nutrient Reductions and Track Implementation and Interactive GLRI Watershed Remediation Tracking System, June 5, 2013
Interactive Nutrients Webinar Transcript
- Nutrient Trading in the MRB: Possibilities for Improving Gulf Water Quality & Ideas for State Nutrient Reduction Strategies, May 29, 2013
Nutrient Trading Nutrients Webinar Transcript
- What Drives Successful Nutrient Reduction Efforts? And How Can Land Grant Universities Support Them?, May 1, 2013
Successful Nutrients Webinar Transcript
- Indian Creek Watershed Project, April 24, 2013
Indian Creek Nutrients Webinar Transcript
- Interactive Routine for Bioreactor Design and Evaluation, March 6, 2013
Bioreactor Nutrients Webinar Transcript
- The Nose Knows: Canine Scent Tracking, February 7, 2013
Sniffdog Nutrients Webinar Transcript
EPA's Watershed Academy also sponsors a webinar series dealing with nutrient reduction strategies and numeric criteria development.
- EPA Releases Scientific Report Showing U.S. Coastal Waters a Mix of Good and Fair Health, Feb. 25, 2016
- Case Studies on Implementing Low-Cost Modifications to Improve Nutrient Reduction at Wastewater Treatment Plants, Oct. 15, 2015
- ELI/TNC Watershed Approach Handbook: Improving Outcomes and Increasing Benefits Associated with Wetland and Stream Restoration and Protection Projects, March 18, 2015
- Ten Years of Watershed Assessment in Conservation Effects Assessment (CEAP): Insights and Lessons Learned, Feb. 5, 2015