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Water Quality Program

Aquatic Invasive Species Management General Permit

The Aquatic Invasive Species Management General Permit (permit) is a combined National Pollutant Discharge Elimination System (NPDES) and State Waste Discharge General Permit. It covers the in-water treatment of aquatic invasive animal species and nonnative invasive marine algae. This permit will allow for the treatment of early infestations and for small localized projects that may lead to the eradication or containment of invasive species.

Reissued Permit Documents

Ecology reissued this permit on August 17, 2016. This permit will become effective on September 16, 2016.

Current Permit Documents

Final Environmental Impact Statement (FEIS)

Determination of Significance (DS) and Environmental Impact Statement Scoping Notice (May 5, 2009)

Washington Fish and Wildlife Timing Table

Historical Information

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Aquatic Pesticide NPDES Permit ListServ