This project encompasses surface water quality sampling within the Snake River Watershed over a period of two years (2017-18). This is the cycle II monitoring as follow-up to the original Snake River Watershed monitoring 10 years ago as part of the Watershed Restoration and Protection Strategy Report (WRAPS). This project shall provide follow-up data on the waters in the Snake River Watershed in regards to changes in water quality over this 10-year cycle. The current sampling project will entail sampling 5 lakes and 11 stream sites.
This project will update sediment Total Maximum Daily Loads (TMDLs) for 60-64 impaired stream reaches and provide a final TMDL report. The report will address sediment and turbidity impaired streams in the Minnesota River Watershed. TMDLs will describe the impairment in each water body and water quality targets, and will include a discussion of pollutant sources, supporting report components that document assumptions and methodologies, and TMDL equations with completed load allocations, wasteload allocations, and margin of safety for each impairment.
The goal of this project is to refine the nutrient and algae simulation in the Minnesota River basin using all relevant available sources of information. The outcome of this work order is a revised Hydrological Simulation Program – FORTRAN (HSPF) watershed model application for the Minnesota River basin that correctly represents nutrient sources and algae.