ALERT: All Ecology offices are closed to walk-in service through at least April 8. For more information please visit our COVID-19 response page. See also the Washington state COVID-19 page.
This permit is designed to protect water quality during efforts by the Washington State Department of Agriculture to eradicate Asian and European gypsy moths. This permit is a combined National Pollutant Discharge Elimination System (NPDES) and State Waste Discharge Individual Permit.
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Aquatic Pesticide Permit Specialist