Shell Rock River Scenarios and Total Maximum Daily Loads (TMDLs)

This project will complete an extension of the Shell Rock River Hydrologic Simulation Program FORTRAN (HSPF) watershed model application through the year 2018. Compliance scenarios will be executed to address potential expansion of discharges from the Albert Lea Wastewater Treatment Plant (WWTP). The model will be fully functioning, calibrated, validated, and executable and will simulate hydrology, sediment (sand, silt, and clay), temperature, phosphorus, nitrogen, dissolved oxygen, biochemical oxygen demand, and chlorophyll at the 12-digit hydrologic unit code (HUC) subbasin scale (or finer). Another outcome of this project will be a draft Total Maximum Daily Load (TMDL) report that provides quantitative source assessments, allowable loads, and load reductions needed for compliance with water quality standards.