Reducing Phosphorus Loads to Lake Betsy by Protecting Willow Creek
Stormwater runoff from the City of Kimball drains untreated into Willow Creek, a trout stream. Willow Creek is tributary to Lake Betsy, which is impaired by excess nutrients. This project targets phosphorus removal for Lake Betsy as identified in the Upper Watershed TMDL Studies for the Clearwater River Watershed and protection to Willow Creek trout habitat by infiltrating the 1.5-inch storm event off 428 acres in and around the City of Kimball.
(b) $2,800,000 the first year and $3,124,000 the second year are for grants to watershed districts and watershed management organizations for: (i) structural or vegetative management practices that reduce storm water runoff from developed or disturbed lands to reduce the movement of sediment, nutrients, and pollutants or to leverage federal funds for restoration, protection, or enhancement of water quality in lakes, rivers, and streams and to protect groundwater and drinking water; and (ii) the installation of proven and effective water retention practices including, but not limited to, rain gardens and other vegetated infiltration basins and sediment control basins in order to keep water on the land. The projects must be of long-lasting public benefit, include a local match, and be consistent with TMDL implementation plans or local water management plans. Watershed district and watershed management organization staff and administration may be used for local match. Priority may be given to school projects that can be used to demonstrate water retention practices. Up to five percent may be used for administering the grants (2010 - Runoff Reduction)
Stormwater Infiltration & Re-use Basin was designed and installed, along with a pre-treatment rain garden. Pollution Reduction estimate for this practice is 244 pounds of phosphorous removed per year by controlling stormwater runoff from a 428 acre drainage area in and around Kimball. Sediment reduction estimates for the system is four cubic yards per year kept from entering Willow Creek.