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Aquatic Pesticide Permits

Thumbnail of Flowchart for determining which pesticide permit is needed for freshwater plant and algae control or nutrient inactivation
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What permit do you need for freshwater plant and algae control or nutrient inactivation? - Use this flow chart to determine what NPDES permit you need for freshwater use of herbicides, physical plant control methods, nutrient inactivation products, or biocontrols in Washington.

Aquatic Pesticide GENERAL Permits:

Aquatic Pesticide INDIVIDUAL Permits: