Holiday closure Monday May 28: Most county offices will be closed in observance of Memorial Day.

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: 206-684-1280
Fax: 206-684-1741
Telecommunication device for the deaf (TTY): 711

Get Directions to our office location in Seattle, Washington.

Staff Contacts
Only 1 percent of water on earth is fresh and available

Keep cars maintained; fix leaks.

  

Keep cars maintained; fix leaks and change brake pads

Car parts, oils, and fluids deposit metals, chemicals and toxic particles on streets that run off into water bodies and contaminate Puget Sound. 

Find out how you can help keep water clean!
Keep water clean

Take hazardous waste to a disposal facility.
Hazardous waste disposal

Choose to walk, bike, bus or carpool.
Walk, bike, bus or carpool

Use commercial car washes or the grass.
Use commercial car washes

External resources 

Get started now; tools to help 

Learn more about this

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