The onsite wetland absorbs water that is redirected from the pollution abatement ponds nearby, filtering out any residual sediment and further reducing pollutants that might enter Issaquah Creek. The goal of the wetland is to enhance water quality as well as to provide an educational exhibit demonstrating the value and function of wetlands.

The wetland was created in the spring of 2009 and was sponsored by students from Clark Elementary’s Science/Technology Magnet class, King County Department of Natural Resources and Parks, Water, and Land Resources Division, “Small Change for a Big Difference Award,” the Washington State Department of Fish and Wildlife, FISH, Mountains to Sound Greenway, and the Grange Supply.