Summary of Washington’s Nutrient Control Plan

Why did Ecology Develop a Nutrient Control Plan?

The Environmental Protection Agency (EPA) identified nutrient criteria development as a national priority and asked states to develop nutrient criteria development plans. Ecology developed a nutrient control plan and submitted it to EPA in May, 2004.

What Comprises Washington’s Nutrient Control Program?

Washington’s nutrient control program combines prevention, carefully chosen trigger criteria, and comprehensive clean-up strategies to ensure that the beneficial uses of the state’s waters will remain protected from the effects of excess nutrients.

For more information:

Nutrient Criteria Development in Washington State - Phosphorus (Ecology publication)

EPA’s Approval Letter for the Nutrient Control Plan (PDF)


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Last updated October 2005