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Wastewater Treatment

King County, Washington

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

King Street Center
201 S. Jackson St., Suite 500
Seattle, WA 98104-3855
Phone: 206-477-5371
Fax: 206-684-1741
Telecommunication device for the deaf (TTY): 711

Get Directions to our office location in Seattle, Washington.

Staff Contacts

Enhancing the environment with our facilities

The Wastewater Treatment Division's commitment to the environment extends to how we design and build facilities to treat and harness resources from wastewater.

King County makes it a priority to use design standards and building practices to ensure our facilities benefit the environment and enhance the communities in which they are built.

green building
Green Building

Public Art
Public Art

public space
Public Space

Unique Architecture
Unique Architecture

More about our treatment plants and facilities

Related topics

  • Visit the Resource Recovery site to learn how King County recovers and recycles beneficial resources from the wastewater treatment process.