Municipal stormwater permit reissuance

We reissued the current permits on July 1, 2019. The Phase I and Phase II permits expire on July 31, 2024.

We are beginning to work on the 2024 permit reissuance to identify issues and necessary improvements for the permits.

2024 permit reissuance 

We're in the early stages of planning the 2024 permit reissuance. We welcome early input to help develop the proposed draft permits. We accepted early input until Feb. 25, 2022. This early input is informal — we won't respond to comments at this time. We'll conduct formal comment periods on the draft permits in late 2023 and additional opportunities to provide input will be available.

Early input ideas help inform the scope of significant issues to be addressed in our reissuance of the 2024 permits. If there are suggestions for minor changes or improvements (i.e., would not create significant revisions or change in policy) these may be submitted at a later time.

View early input comments

Next steps in the permit reissuance process

  • Spring 2022 Listening sessions: We shared our early thinking on proposed changes and gathered additional input.
  • Fall 2022/Early 2023 Potential preliminary drafts of permit sections: We may provide preliminary drafts of specific permit sections for informal comment.
  • Late Summer/ Fall 2023 Formal Draft Permits: We will hold a formal public comment period, to include a workshop and hearing, on the draft permits.
  • July 2024: Make permit decision

Listening sessions

We hosted listening sessions on June 6 & 13, 2022, to prepare for the 2024 reissuance of the Municipal Stormwater Permits (Phase I, Western WA and Eastern WA Phase II) and concurrent updates to the Stormwater Management Manuals (SWMM), both eastern and western.

The listening sessions provided an opportunity to:

  • Present our preliminary plans for the scope of changes for the 2024 Permits and SWMMs.
  • Share early input we received from our stakeholders.
  • Hear further input on the proposed scope of changes.

Listening session presentations

Collaboration opportunities

Structural Stormwater Control Policy Advisory Committee

This year we will begin hosting the Structural Stormwater Control (SSC) Policy Advisory Committee (PAC) — which will focus on recommendations regarding the Phase I SSC program requirements, and will also provide recommendations on whether this SSC approach is appropriate for 2024 WWA Phase II Permit. 

PAC Membership:

  1. Rod Swanson, Clark County
  2. Blair Scott, King County
  3. Maureen Meehan, Pierce County
  4. Bill Leif, Snohomish County
  5. Merita Trohimovich, City of Tacoma
  6. Ingrid Wertz, City of Seattle
  7. Sheena Pietzold, WDOT
  8. Jane Dewel, Port of Seattle
  9. Jenny Gaus, City of Kirkland
  10. Larry Schaffner, Thurston County
  11. Jason Quigley, Skagit County
  12. Ken Gill, City of Shelton
  13. Peter Holte, City of Redmond
  14. Alyssa Barton, Puget Soundkeeper
  15. Aaron Clark, Stewardship Partners

Policy Advisory Committee Meetings began in May 2022, details are posted on our SSC PAC project page.

Stakeholder-run collaboration – Ad-hoc groups

Some Phase I and Phase II Permittees are engaging in a collaborative process to discuss and recommend permit changes. Permittees are engaging with one another, as well as environmental stakeholders and other interested parties. This is not an Ecology-led effort so please contact the Stormwater Center below for more information.

Contact for Ad-Hoc Groups:

More information regarding the Ad-hoc Groups is on the Washington Stormwater Center’s website.