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

Reduce fertilizers and pesticides: choose natural yard care.

Reduce fertilizers and pesticides: practice natural yard care

Chemical fertilizers and pesticides can be easily washed off lawns and gardens into storm drains. The organic, living material in composts or natural yard care products can help the soil hold more water and nutrients for the plants, reducing the need for chemical products.


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

Take hazardous waste to a disposal facility.
Hazardous waste disposal

Pick up pet waste and throw it in the trashcan.
Pick up pet waste

Choose natural, simple products. Avoid fragrances, phosphorus and chemicals.
Choose natural, simple products

  

External resources

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Its easy being green, let King County show you how