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Clean Water Plan SEPA scoping comment period extended - now ends July 19, 2020

You're invited to comment on the scope of the Draft Environmental Impact Statement (EIS) for the Clean Water Plan

A public comment period for the scope of the Draft EIS under the State Environmental Policy Act (SEPA) review of the Clean Water Plan is open through 5 p.m. on June July 19, 2020. Visit our online open house to learn more about the Clean Water Plan, SEPA scoping, and how to submit a SEPA scoping comment.

The SEPA review process is designed to help agency decision-makers and the public understand how a proposed action or plan will affect the environment. On May 20, 2020, King County Wastewater Treatment Division (WTD) issued a Determination of Significance and Request for Comments on the Scope of the Programmatic EIS  for the Clean Water Plan. This formally began the SEPA scoping public comment period for the Clean Water Plan.

To make a formal SEPA scoping comment, submit your comment via email or regular mail:

Email to:

Mail to:
Katherine Fischer
Environmental Programs Managing Supervisor
King County Wastewater Treatment Division
201 S Jackson Street, MS: KSC-NR-0505
Seattle, WA 98104-3855

family at beach

Our relationship to water is part of what makes this region special. Puget Sound and our lakes, rivers, and streams give us food, transportation, jobs and fun. This water is central to Native people’s cultures and traditions, and the ecological health of salmon, orca and other fish and wildlife. We all play a part in protecting this resource for future generations, and preserving the beauty and health of the Puget Sound region.

King County is undertaking this large planning effort because it is facing critical decisions that will affect the region’s water quality.

Why make a plan?

Over the next few decades our region will collectively spend billions of dollars on protecting water quality. King County needs to update its wastewater plan so that we make the right investments at the right time for the best water quality outcomes. We feel strongly that when the County hears from everyone, we all benefit.

What are some issues the plan considers?

The Clean Water Plan will outline WTD’s future and address broader water quality concerns. We are facing a number of complicated issues, including:

  • Serving a growing population
  • A changing climate resulting in more extreme weather events
  • Further reducing the amount of untreated sewage and polluted stormwater that overflows into local water bodies during storms
  • Maintaining our 50-year old system of wastewater pipes, pumps, and treatment facilities  
  • Better coordination of water quality investments to get the best outcomes for human health, habitat, and wildlife
  • Ensuring benefits of water quality investments are distributed equitably
  • Making treatment facilities more resilient to storm and earthquake risks
  • How to finance water quality improvements
  • And more

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