The goal of this project is to finalize the draft Lake Pepin Total Maximum Daily Load (TMDL) Report, issue it for public comment, address comments, and finalize the report. Lake Pepin is impaired by high levels of nutrients that cause excessive growth of algae. High levels of sediment, carried in by major river systems, also affect the lake. The sediment is filling in the lake at a much faster rate than before Minnesota was settled and intensely farmed. Nutrients and sediment are distinct yet inter-related pollutants, and are being addressed in separate TMDL reports.
The goal of this project is the continued development of an overall strategy for reduction of turbidity/TSS, with sets of sediment reduction initiatives and actions for various sources, to address the Minnesota River Turbidity TMDL and the South Metro Mississippi River TSS TMDL. The overall strategy will be used to help establish a path towards achieving the required reductions of turbidity/TSS.
The final outcome of this project will be a chloride management plan which will lay out a strategy for addressing chloride impacts to our surface waters for the 7-county metropolitan area. This chloride management plan will satisfy EPA requirements for impaired waters, address waters not yet listed, and develop a strategy to protect waters that are currently meeting the water quality standards. This management plan will also include implementation activities for reducing chloride to TCMA waters as well as identify high priority areas to target implementation activities.