FY22 CWF North Creek Foxborough Park TSS Reduction Project

The Vermillion River Watershed Joint Powers Organization (VRWJPO), in partnership with the City of Lakeville and Dakota County, will construct a dry pond with a wet sedimentation forebay in Foxborough Park adjacent to the North Creek tributary to the Vermillion River that will capture and reduce total suspended solids (TSS) and total phosphorus (TP) from an existing stormwater outfall that discharges directly to North Creek. The basin would be constructed within an existing park greenspace and would intercept stormwater from the existing outfall for treatment. The 220-acre subwatershed draining to this stormwater outfall was developed several decades ago with very minimal stormwater treatment, and new opportunities for stormwater treatment are limited. The project will reduce an estimated 18.4 tons/year of TSS and 31.8 pounds/year of TP. Based on information provided by the MPCA in preparation for the second phase of the Vermillion River Watershed Restoration and Protection Strategy, North Creek is to be placed on the impaired waters list in 2022 for TSS and fish bioassessments. The project will directly address the TSS and fish bioassessment impairments by reducing TSS and improving conditions within North Creek for the biological communities.