What's the Problem?
With every storm, rain carries pollutants off our roofs, driveways and other hard surfaces to local creeks, Lake Washington and the Puget Sound. During big storms, the sheer volume of this “stormwater” can cause sewer overflows, and erode hillsides and stream banks. Rain gardens and cisterns can help control this stormwater with your help.
How to become RainWise
The RainWise program provides rebates that cover most or all of the cost of installing cisterns and rain gardens on your property. To receive a rebate, you must live in an eligible combined sewer overflow basin. The average rebate has been around $4,400.
You can also call the Garden Hotline at 206-633-0224 for eligibility information.
Download the following documents to learn more about this program.
RainWise helps private property owners manage the rain that falls on their roofs. Information is included in the Green Stormwater Infrastructure Accomplishment Report .
Not eligible for RainWise?
Green Stormwater Mini-Grants are available in the King County Wastewater Treatment Division service area.
Here are some other resources: GSI Western WA Resources
Blog: Clean water stories
RainWise is working to promote Green Stormwater Infrastructure!, September 6, 2019
RainWise program celebrates new installation in North Seattle, October 18, 2017
Why “Water Wisely” When It Won’t Stop Raining? February 26, 2017
Making Your Landscape a Dream, Not a Nightmare, January 21, 2017