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Toolkit of Resources to Assist States with Adopting and Implementing Numeric Nutrient Criteria

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This toolkit compiles available Agency resources to facilitate state adoption of numeric nutrient criteria. It includes information on: criteria and standards development; water quality monitoring, assessment, reporting, and planning; permitting, WQBELs, and trading; economics and financing; and communications materials. This dynamic toolkit will be updated as new Agency materials are developed.

For further information on states' and territories' progress in adopting numeric nutrient criteria refer to our State Development of Numeric Criteria for Nitrogen and Phosphorus Pollution website, and for information on state nutrient data, visit the Nutrient Indicators Dataset.

Useful public content for understanding the role that numeric nutrient criteria can play in creating and protecting clean water bodies is available at EPA Nutrient Pollution website.

The following links exit the site Exit

Criteria Documents

Water Quality Monitoring, Assessment, Reporting, and Planning

Permitting, WQBELs, and Trading Guidance


Communications Materials

Non-Agency Resources

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