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Water Quality Criteria
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Nutrients

National Nutrient Strategy (July 1998)

Nutrient Ecoregion Map of the Nation's 14 aggregated nutrient ecoregions.

National Nutrient Guidance contains guidance documents and policy memos for developing nutrient criteria.

National Nutrient Team

EPA Regional Nutrient Coordinators

Frequently Asked Questions (FAQs)

Past, Present, and Future Meetings and Events

 

 

 



Region 3's Criteria Guidance for the Chesapeake Bay and its tidal tributaries defines dissolved oxygen, water clarity and chlorophyll a criteria.

Ecoregional Nutrient Criteria
addressing lakes and reservoirs, rivers and streams, and wetlands in 26 specific geographic regions (ecoregions) of the United States.

Nutrient Database displays water quality data from states and ecoregions.

EnviroMapper provides results from sampling and monitoring stations located in waterbodies nationwide.

Wetland Modules provide biological and nutrient assessment techniques for developing criteria and ecological assessments for wetlands.


 


Nutrients Navigation

 

Water Quality Standards | Drinking Water | Research and Development

 
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