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For questions about the Wastewater Treatment Division Web site, please send an e-mail message or contact us at:

King Street Center
201 S. Jackson St., Suite 505
Seattle, WA 98104-3855
Phone: 206-684-1280
Fax: 206-684-1741
Telecommunication device for the deaf (TTY): 711

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Staff Contacts

Puget Sound shoreline next to the West Point Treatment Plant, Seattle

RWSP operational master plan & Ordinance 13680

ompThe Operational Master Plan, or OMP, explains how King County will implement the Regional Wastewater Services Plan as required by Ordinance 13680, which adopts changes to King County's Comprehensive Water Pollution Abatement Plan. Whereas the ordinance focuses on the policies that drive the RWSP, the OMP focuses on defining the performances measures, needed resources, and projected workload necessary to implement the RWSP.

Ordinance 13680 was codified in the King County Code as Chapter 28.86. Amendments to Ordinance 13680 and the King County Code have been made since the adoption of the RWSP and are included in the King County Code, Chapter 28.86.010 through Chapter 28.86.180. Amendments have included updates to the RWSP financial policies, conveyance policies, new odor control policies for the county's existing treatment plants and conveyance facilities, and a new section on reporting policies.

  • King County Code (refer to Chapter 28.86.010 through 28.86.180)
  • Ordinance 16033 (enacted 3/20/2008), approving amendments to RWSP conveyance policies
  • Ordinance 15602 (enacted 10/5/2006), adopting RWSP technical and policy amendments
  • Ordinance 15384 (enacted 3/22/2006), adopting RWSP reporting policies
  • Ordinance 14712 (enacted 7/25/2003), adopting policies relating to odor control at existing treatment plants and conveyance facilities
  • Ordinance 14219 (enacted 10/11/2001), updating RWSP financial policies