Aquatic Noxious Weed Control NPDES General Permit
The general permit covers the indirect discharge of herbicides, adjuvants, and marker dyes into estuaries, marine areas, wetlands, along lake shorelines, rivers, streams, and other wet areas to manage Spartina and freshwater noxious weeds in Washington. An indirect discharge occurs when there may be incidental overspray or dripping of a chemical from the treated plants into waters of the state.
Draft permit for public review
Public comment period
The public comment period is now closed. The public comment period lasted from September 21 - November 4, 2016. We held a workshop and public hearing on October 27, 2016 at 1:00 pm.
Current permit documents
Product to Active Ingredient Conversion Table - End of year reporting must be in pounds of active ingredient.
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