This project will construct, calibrate, and validate three HSPF watershed models. The consultant will produce HSPF models that can readily be used to provide information to support conventional parameter TMDLs. The consultant will clearly demonstrate that these models generate predicted output time series for hydrology, sediment, nutrients, and dissolved oxygen which are consistent with available sets of observed data.
This project will continue HSPF watershed model construction beyond the initial framework development. The consultant will add representation of point source discharges to the model. The consultant will also compile flow data for the purposes of calibration and validation. Finally, an initial hydrologic calibration will be performed and submitted for approval.
This project will extend, calibrate, and validate watershed models using the Hydrological Simulation Program - FORTRAN (HSPF) watershed model for the Mississippi Headwaters, Leech Lake, Pine, and South Fork Crow Watersheds.