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Wastewater Treatment Division

King County, Washington, protects water quality and prevents water pollution by providing wastewater treatment to 17 cities and 17 local sewer utilities. The county's Wastewater Treatment Division serves about 1.4 million people, including most urban areas of King County and parts of south Snohomish County and northeast Pierce County. Learn more about our system and who we are.
 

 

A Clean Water Agency

Our mission is to protect public health and enhance the environment by treating and reclaiming water, recycling solids and generating energy.

 

 

Wastewater system and process

Our Wastewater System and Process

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Features | News | Site Map

New! Sewage Treatment Capacity Charge: you can now pay your bill online.

mile-long marine outfall pipes
Two mile-long marine outfall pipes (for the Brightwater Treatment System) being towed to the Pt. Wells site. More photos.

Learn more about WTD career opportunities
Learn more about our career opportunities

Bellevue Pump Station Upgrade Project

Juanita Bay Pump Station Replacement Project, Kirkland

Elliott West CSO Facility Emergency Repair, Seattle

King Street Odor Control Project, Seattle

53rd Ave. Pump Station Upgrade Project, West Seattle

Kent-Auburn Conveyance System Improvements Project

Companies earn environmental awards

Kirkland Pump Station and Sewer Upgrade Project

Ravenna Creek Wastewater Spill, Seattle

View the Ratepayer Report, April 2008 | Frequently asked questions

Puget Sound Beach CSO Projects (North Beach, South Magnolia, West Seattle)Puget Sound Beach CSO Projects (North Beach, South Magnolia, West Seattle)

Things You Can Do to Protect Your Environment

In the News

Smooth sailing for Brightwater outfall pipelines

Brightwater outfall pipeline tow rescheduled for late Sunday morning

Brightwater outfall construction to temporarily affect marine traffic from Everett to Shoreline

Community invited to celebrate clean water at Vashon treatment plant open house

Heavy rains result in small overflow in University Slough

Carnation earns WateReuse Association's Small Project of the Year award

More WTD news | DNRP news

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Other County Links

King County Watersheds Map

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King County Online Directory

system planning

System Planning

wastewater programs

Wastewater Programs

Creating Resources from Wastewater

Our Vision:
Creating Resources from Wastewater

information, education, public involvement

Information, Education, Public Involvement

External Environmental Links and Resources

Web Site Table of Contents (site map)

Information for contractors
and consultants

Bid and RFP Information

Brightwater Construction Contracts

Requesting Design Standards


Utilities Underground Location Center
Call Before You Dig!
Call Before You Dig -- Utilities Underground Location Center


mail image Contact information is provided on specific program pages. For questions about the Wastewater Treatment Division Web site, please send an e-mail message or contact us at:

Department of Natural Resources and Parks
Wastewater Treatment Division
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

Get Directions to our office location in Seattle, Washington.

Updated: Sept. 15, 2008


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