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Protecting our waters

Doing our part on rainy days
For questions about the King County Protecting Our Waters Program, please contact John Phillips.

Wastewater Treatment Division
King Street Center
201 S. Jackson St., Suite 505
Seattle, WA 98104-3855

Get Directions to our office location in Seattle, Washington.

Real Time Combined Sewer Overflow (CSO) Notification

Be RainWise -- Manage your rain water at home

03_HouseGSI_180What is RainWise?

More than 500 Seattle homeowners have installed rain gardens and cisterns that are helping to control stormwater runoff and preventing combined sewer overflows as part of the RainWise program in Seattle.

Fall, winter and early spring are great times to start a RainWise project:

  • Plants have time to grow healthy roots and with plenty of rain you don’t need to water them until summer
  • Contractors who install rain gardens and cisterns tend to be more available fall, winter and early spring.

RainWise events in your neighborhood
Learn about RainWise at these upcoming events in North and West Seattle.

Take a virtual tour
Take a virtual tour of RainWise projects

Learn how these Seattle neighborhoods are becoming RainWise

Eligible RainWise Basins
Check your eligibility at the RainWise Tools Website at (external link) or call the Garden Hotline at 206-633-0224.


Download the  Be RainWise flier to learn more about this program.
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