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Stormwater pollution prevention plan permit (SWPPP)

What is the purpose of a stormwater pollution prevention plan permit (SWPPP)?

A stormwater pollution prevention plan permit (SWPPP), issued by the Washington State Department of Ecology, addresses legal requirements and controls the discharge of pollutants to protect surface water and ground water quality in Washington State.

What activities require this permit?

Washington State requires a SWPPP for development sites which clear and disturb one acre of land over the entire development site.

Notes / Comments

For application forms or other information

Legal authority

Chapter 90.48 of the Revised Code of Washington (external links)

Administered by

Washington State Department of Ecology

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  Updated: Apr. 11, 2007