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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

Participant information and directions

You will need a PDF reader to view and print files.

Participant information sheets

Please print out and distribute to all participants (including students!)

Driving directions and site maps

Black River watershed walk self-guided field trip materials

Copies of all handouts will be ready for you, in the kits, when you arrive for your field trip.

Education resources

Education program questions: contact Casey Plank at 206-477-5448 or

Other county education resources

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