Publications & resources

• Regional Wastewater Services Plan
• Ratepayer Report
• Annual Financial Statements (WTD)
• DNRP Annual Report
• WTD Year in Review

• Facts about the King County Regional Wastewater System 

• Near Neighbor 
• Water Quality 

• Treatment process diagrams
  • Brightwater Treatment Plant , 2018
  • Carnation Treatment Plant , 2018
  • South Treatment Plant , 2018
  • Vashon Treatment Plant , 2018
  • West Point Treatment Plant , 2018
• Loop brochure , see also Loop Biosolids Resources and Documents
• Don't Flush Trouble flier (available in multiple languages)
• Endocrine Disrupting Chemicals in the Environment - brochure and insert , Oct. 2007
• Residential Relocation Program Brochure, Jan. 2010
• Education program materials

• Better Than Promised: An informal history of the Municipality of Metropolitan Seattle, 1995
• Metropolitan Seattle Sewerage and Drainage Survey, 1958
• Multi-Agency Benchmarking Report, 1999
• Productivity Initiative, 2000-2011
• See also the Technical Document and Research Center

• WTD Strategic Plans
  • 2018 Strategic Asset Management Plan Update , December 2018
  • King County Biosolids Program Strategic Plan, 2018–2037 , June 2018
  • King County Recycled Water Program Strategic Plan, 2018–2037 , June 2018
  • King County Technology Assessment and Innovation Program Strategic Plan, 2018-2037 , June 2018
  • Wastewater Treatment Division Energy Plan, 2018-2025 , February 2018
• System Planning 
  • Clean Water Plan (launched 2019)
  • Regional Wastewater Services Plan (adopted 1999)
• Wastewater Flow and Loadings Forecasting
  • West Point Flow and Wasteload Projections, 2010 - 2060 , December 2018
  • South Plant Flow and Wasteload projections, 2010 - 2060 , January 2019
  • Brightwater Flow and Wasteload projections, 2010 - 2060 , January 2019
• Treatment Planning
  • Nitrogen Removal Study – Draft Final , September 2020
  • Treatment Plant Flows and Loadings Study Summary Report , November 2019

• Capacity Charge - FAQs
• Combined Sewer Overflow Control (Protecting our Waters) 
• Conveyance System Improvement 
• Industrial Waste - forms, newsletter
• Regional Infiltration and Inflow Control 
• Resource Recovery - Loop Biosolids, Energy, Recycled Water and Research and Technology 
• Sediment Management 
• Wastewater (NPDES) Permits

Refer to library pages on capital projects.   

• Metropolitan Water Pollution Abatement Advisory 
• Regional Water Quality

• WTD Operational Performance Metrics
• DNRP Publications
• Technical Document and Research Center
• King County Budget 
• King County Editorial Style Guide
• Public Records Officers
• WTD staff contacts

The National Association of Clean Water Agencies (formerly the Association of Metropolitan Sewerage Agencies) -- NACWA represents wastewater treatment agencies in developing environmental legislation and working with federal regulatory agencies to carry out environmental programs.

National Small Flows Clearing House -- The NSFC helps America's small communities and individuals solve their wastewater problems to protect public health and the environment.

Puget Sound Partnership -- The Puget Sound Partnership is a community effort of citizens, governments, tribes, scientists and businesses working together to restore and protect Puget Sound.

United States Environmental Protection Agency -- EPA's mission is to protect human health and safeguard the natural environment -- air, water, and land -- upon which life depends.

Water Environment Federation -- WEF is an international not-for-profit educational and technical organization of more than 40,000 water quality experts. Its mission: to preserve and enhance the global water environment.