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.

The Association of Clean Water Administrators (ACWA) has developed a companion Nutrient Toolkit page, where state materials—similar in content to the Federal materials on this EPA toolkit—will be housed. ACWA’s preliminary state toolkit was developed in partnership with the EPA.

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

Criteria Documents

Water Quality Monitoring, Assessment, Reporting, and Planning

Permitting, WQBELs, and Trading Guidance


Communications Materials

Non-Agency Resources

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