The Drinking Water Contaminants of Emerging Concern (CEC) program identifies environmental contaminants for which current health-based standards currently do not exist or need to be updated, investigate the potential for human exposure to these chemicals, and develop guidance values for drinking water. Contaminants evaluated by CEC staff include contaminants that have been released or detected in Minnesota waters (surface water and groundwater) or that have the potential to migrate to or be detected in Minnesota waters.
The purpose of this work is to develop Total Maximum Daily Loads (TMDLs; a federal clean Water Act requirement) for streams and lakes in the Kettle River and Upper St. Croix watersheds. This and other technical information will be used to develop a separate report called a Watershed Restoration and Protection Strategy (WRAPS) report.
The purpose of this project is to gain additional information about the amount of phosphorous flowing into Lake St Croix by implementing additional water quality monitoring and/or to reduce the amount of phosphorous entering Lake St Croix by the implementation of projects that will reduce phosphorus loadings. The St. Croix River Association (SCRA) will coordinate with a subgroup of the St. Croix Basin Water Resources Planning Team and other local resource experts on the identification and funding of comprehensive water monitoring and phosphorus reduction activities in the Lake St.
The International Water Institute (IWI) will monitor 42 sites (3 basin, 12 major watershed, and 27 subwatershed) in the Red River and Upper Mississippi River Basins intensively during 2016, 2017, 2018 and 2019. There will also be 5 sites in the Red River Basin where mercury samples will be collected in 2016 and 2017 and sent to Minnesota Department of Health for analysis. The IWI will collect water samples across the range of flow conditions targeting sample collection at times of moderate to high flow.
The main outcome of the project will be the development of a Total Maximum Daily Load (TMDL) study that address total suspended solids/turbidity impairments of the Mississippi River (Swan River to Crow Wing River). Community outreach to communicate the results and strategies for restoration will also take place during this project.