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King County Logo
May
31

Community Report

This Wastewater Treatment Division report shares information about the services we provide, and explains the sewer rate and capacity charge to operate and maintain our regional treatment facilities.

Our regional wastewater treatment system has a big job to do. Not only does it operate around the clock to sustain a healthy environment, this vital infrastructure supports economic development that enables our region to thrive.

To keep the system operating reliably as our population grows, King County will need to continue investing in system upgrades and improvements.

We hope this report increases your understanding of our utility’s commitment to fiscal and environmental stewardship. We appreciate the opportunity to serve you and welcome your questions and comments.

Community Report 2025

A lively summer scene on Lake Washington, where people are swimming, kayaking, and diving from a floating platform. In the background, houses line a tree-covered hillside. The cover features the King County Wastewater Treatment Division logo and the title "Community Report 2025."
View report (6.7MB)

Informe Comunitario 2025

Una animada escena veraniega en el lago Washington, donde la gente nada, practica kayak y bucea desde una plataforma flotante. Al fondo, se ven casas alineadas en una ladera arbolada. La portada muestra el logotipo de la División de Tratamiento de Aguas Residuales del Condado de King y el título "Informe Comunitario 2025".
Ver informe (4.6MB)

Related Topics

Capacity charge

How to pay your sewer capacity charge bill and who to contact if you have questions.

Sewer rate and capacity charge

How is the sewer rate and capacity charge set?

Resource Recovery

Learn how Resource Recovery provides leadership around sustainability and the reuse of valuable products to support the mission of the Wastewater Treatment Division to protect public health and the environment.

Capital projects

Find information on King County’s current and planned wastewater capital projects, including project descriptions, locations, and status, and sign up for project updates. 
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