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The 2017 grant cycle is in the review process. We are not accepting new proposals at this time. Go to Application Process for details.

While WaterWorks is not accepting new proposals, there is funding available for RainWise Outreach Grants, which is currently accepting applications. Go to RainWise Outreach Grants for information and to apply. Deadline is 5 p.m. January 22, 2018.

Eligibility: The following organizations are encouraged to apply:

  • 501 (c) (3) non-profit organizations
  • businesses that are certified as a Small Contractor and Supplier with King County’s Business Development an Contract Compliance office and self-identify as a woman or minority-owned business.

WaterWorks provides funding for projects that improve water quality in the service area for King County's regional wastewater system. This grant program complements the water quality mission of the Wastewater Treatment Division.

In addition to the WaterWorks competitive grants, water quality project funding is available through King County Council allocated funding

Approximately $2 million are awarded every two years for organizations carrying out a variety of projects. Non-profits, schools and educational institutions, cities, counties, tribes, and special purpose districts are eligible to apply, and partnerships are encouraged. 

Use the links below to learn more about the following:

Login to view or continue your WaterWorks Grant application.


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Elizabeth Loudon

Julia Yen