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King County Wastewater Treatment Division (WTD) RainWise Outreach Grants

We are excited announce that King County Wastewater Treatment Division (WTD) is now accepting proposals for the RainWise Outreach Grants.


$250,000 has been allocated for this effort. Applications will be accepted through October 1, 2023. To find out more information and the application template, please go to https://kingcounty.gov/en/dept/dnrp/waste-services/wastewater-treatment/programs/rainwise/outreach-grants


The RainWise program is a King County WTD effort to address combined sewer overflows and stormwater pollution by offering rebates to private property owners for the installation of rain gardens and cisterns. This program is a team effort with Seattle Public Utilities (SPU). These grants fund community-based organizations, non-profit organizations, and small businesses with King County Small Contractor and Supplier (SCS) certification to help with outreach and promotion of the RainWise program in King County combined sewer overflow (CSO) basins. RainWise grants are paid in installments, with an initial portion of the grant processed at the start of scope delivery and further payments over the course of the grant activities.


The RainWise Outreach Grant Program is seeking proposals that help accomplish goals in the five Program Areas below: (levels of funding are only representative and are subject to change. Applicants are invited to propose a body of work that addresses one or more Program Area, and should indicate the estimated level of funding for their proposal.)

  1. Conduct innovative and effective outreach and customer support (in-person and/or virtual) to interested residential property owners in eligible King County basins resulting in installations of RainWise rain gardens and cisterns (~75K)
  2. Coordinate extensive outreach and customer support in newly opened and/or reopened King County basins (~40K)
  3. Embed equity and social justice in RainWise outreach and program delivery (~75K)
  4. Execute outreach, marketing, and customer support to RainWise Big Roof property owners, including community centers, faith-based centers, schools, businesses, multi-family residences and apartment buildings (~30K)
  5. Develop resources and provide support for Green Stormwater Infrastructure education and job training (~30K)


Anyone with questions can email GreenGrants@kingcounty.gov or call Amelia Bahr at 206-263-9275.


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