Buffalo and Upper Red River Watersheds Hydrologic Simulation Program FORTRAN (HSPF) Model Extensions

The United States Environmental Protection Agency (USEPA) requires the Minnesota Pollution Control Agency (MPCA) to carry out the Total Maximum Daily Load Program (TMDL) in the state of Minnesota. Minnesota has an abundance of lakes and river reaches, many of which will require a TMDL study. In an effort to expedite the completion of TMDL projects, the MPCA has decided to construct watershed models. These models have the potential to support the simultaneous development of TMDL studies for multiple listings within a cataloging unit or 8-digit Hydrologic Unit Code watershed. In many cases, the MPCA developed Hydrologic Simulation Program FORTRAN (HSPF) models become out of date when new meteorological and stream monitoring data become available. With new information and more water quality data collected it is necessary to update and extend the existing HSPF models. This work order will extend the Buffalo River and Upper Red River Watershed HSPF models in the Red River Basin.