Updating Stormwater Regulations - Timeline


Initiation: August 1, 2019: The Department of Ecology reissued the National Pollutant Discharge Elimination System (NPDES) Phase I Municipal permit (Ecology Permit)

Phase 1 - Equivalency Items and Ecology review:

  • Address items related to Ecology Permit equivalency (e.g., add source control BMPs, update construction stormwater elements, etc.)
  • Public comment period: April 1 through March 16, 2020
  • Draft Stormwater Code and Manual submittal to Ecology: July 1, 2020
  • Ecology review of Draft Stormwater Code and Manual: July - November 2020 (up to 120 days)
  • We recently held 2 online public meetings: April 26 and May 6, 2020. If you missed them, watch our recording of the April 26 meeting and take a look at the PowerPoint!

Phase 2 - Non-Equivalency Items and SEPA

  • Address items that are not related to Ecology Permit equivalency (e.g., stormwater/combined sewer mainline extensions, combined sewer flow control standard/threshold, etc.)
  • SEPA process
  • Public comment period: Fall / Winter 2020
  • Public meetings: Fall / Winter 2020 After Ecology comments are received on Draft Stormwater Code and Manual

Phase 3 - Legislative Process and Adoption

  • City Council review and public hearing: Spring 2021

Effective: July 2021: Our updated Stormwater Code and related Director's Rules are scheduled to take effect