EPA Modifies Fish Hatchery Poop Permits in Washington State
Published Date: 8/14/2026
Notice
Summary
The Environmental Protection Agency (EPA), Region 10, proposes to modify the National Pollutant Discharge Elimination System (NPDES) General Permit for Federal Aquaculture Facilities and Aquaculture Facilities Located in Indian Country in Washington (draft modified GP). The draft modified GP incorporates facility-specific conditions for Leavenworth National Fish Hatchery which will allow the facility to obtain coverage under the draft modified GP. Additionally, the draft modified GP proposes a modification to the chlorine monitoring requirements for all facilities covered under the GP. The draft modified GP and Fact Sheet addendum are available on the EPA Region 10 website at https://www.epa.gov/npdes-permits/npdes-general-permit- federal-aquaculture-facilities-and-aquaculture-facilities.
Analyzed Economic Effects
2 provisions identified: 1 benefits, 0 costs, 1 mixed.
Leavenworth Hatchery Eligible for Permit
The draft modified NPDES General Permit (WAG130000) adds facility-specific conditions for Leavenworth National Fish Hatchery in Washington so that the Leavenworth facility can obtain coverage under the permit. The proposal is open for public comment through September 28, 2026.
Chlorine Monitoring Rule Change for Facilities
The draft modified NPDES General Permit (WAG130000) proposes a modification to the chlorine monitoring requirements for all facilities covered under the permit in Washington. The proposal is open for public comment through September 28, 2026.
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