This project will complete spatial and temporal revisions of 6 Hydrologic Simulation Program FORTRAN (HSPF) models, the recalibration and validation of 7 watershed HSPF models, and the revision of the drainage network and point source representation of the Pomme de Terre HSPF model.
This project addresses twelve lakes that have aquatic recreation impairments as identified by eutrophication indicators and 53 impairments on 45 stream reaches in the Minnesota River Mankato and Watonwan River watersheds. The project will develop Total Maximum Daily Loads (TMDLs) addressing impaired lakes and streams in the Minnesota River–Mankato and Watonwan River watersheds. A TMDL establishes the maximum amount of a pollutant allowed in a waterbody and serves as the starting point or planning tool for restoring water quality.