Carnation Wastewater Treatment Facility

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Historical moment for Carnation—the new wastewater treatment system is up and running

Cinco de Mayo (May 5) marks the date the Carnation sewer system started treating the city's wastewater. Hookups to the system have begun and are proceeding in an organized way. If you need information on the hookup schedule, check Carnation's Web site at http://www.ci.carnation.wa.us/

Dedication Ceremony - June 2, 2008. View event details.

Project background

Until recently, residents and businesses in Carnation relied on septic systems to treat their wastewater. The Carnation City Council felt that a wastewater treatment system was essential to the city's economic and environmental prosperity.

In July 2002, the Carnation City Council approved an agreement with King County to build a treatment plant. In the agreement, the city will design and build a local wastewater collection system while the county will design, build, operate and maintain a new treatment plant and associated discharge facilities.

Carnation's Web site (click on sewer project in left hand column) has information on the sewer system project, especially information about the need for a facility, the cost to ratepayers and the collection system details.

This Web site is a resource for information about this aspect of the project. Click on the links below for more information.

• Advanced treatment technology planned for Carnation
• How was a location for the facility found?
• Where will the treated wastewater go?
• Timeline
• Frequently asked questions

For More Information

King County and the City of Carnation are committed to keeping people informed about the project. Briefings are available on request.

• For information on the treatment plant, call 206-296-8361, or e-mail us. See also news releases and project library Web pages.
• For information on the local sewage-collection system, contact Carnation City Hall at 425-333-4192, or visit the city’s Web site at http://www.ci.carnation.wa.us/.

Home | Type of Treatment Plant | Timeline | FAQs | Project Background / Library

For questions about the Wastewater Treatment Division Web site, please send an e-mail message. For general information about the division, 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

Updated: July 9, 2008

Related Information:
Advanced Wastewater Treatment Processes

Chinook Bend Natural Area

City of Carnation

Snoqualmie - Skykomish Watershed

Snoqualmie River Flooding Information