The County’s Long-term CSO Control Plan  

How can the public be involved?

The Council is expected to review and make any amendments to the Plan in summer 2012. Adoption of the amended Plan is anticipated by fall 2012. The public will have the opportunity to comment on the Executive’s recommended plan during the Council review.

About the previous comment period

The end date for providing comments on the Wastewater Treatment Division’s Recommended Combined Sewer Overflow (CSO) Control Plan was December 31, 2011. All comments we received will be forwarded to King County Executive Dow Constantine to help shape the proposal for CSO control that he will forward to the King County Council by the early summer 2012.

Learn more

• Get e-mail updates on the CSO Control Program Review
• Check to see if a county informational meeting about CSO Control is currently scheduled
• Discuss the plan with project staff. Call Dana West, Communications Specialist, at 206-684-1097 or TTY: 711

Read the Wastewater Treatment Division Recommended CSO Control Plan

• View the county's Wastewater Treatment Division Recommended CSO Control Plan and supporting technical documents.
  • Our website provides much detail on the technologies and alternatives we reviewed and shows maps of proposed project areas. 
• We will mail you a copy of the plan if you request it
• Print copies of the plan and related technical memorandums are available at the King County Library System’s Bellevue, Burien, Fairwood, Federal Way, Redmond and Shoreline libraries (external link), the Seattle Public Library’s Central Library (external link) and the Ballard Neighborhood Service Center (external link). You can also use the library computers to read the plan and technical memorandums.