Working with the Metropolitan Council, the University of Minnesota - Minnesota Technical Assistance Program (MnTAP) is investigating the opportunity for water conservation by private industrial water users across the Twin Cities metropolitan region. Private industrial water users are defined as industries that use private wells for their water supply. This work is determining factors that encourage or create barriers for implementation of identified industrial water conservation opportunities.
A cooperative study was conducted by the U.S. Geological Survey (USGS), the Metropolitan Council, and the Minnesota Department of Health to assess groundwater and surface-water interactions in lakes in the northeast Twin Cities Metropolitan Area (TCMA), including White Bear Lake. An important product of the study was the creation of a groundwater-flow model focused on the northeast TCMA. The groundwater flow model is available for future use to assess the effects of groundwater withdrawals on lake levels as well as to describe other groundwater and surface-water interactions.
The Twin Cities metropolitan area has a rich history and connection with its waters. In an effort to keep surface waters clean, a wide variety of stormwater practices have been developed and installed throughout the metro in recent years. Many of these, such as rain gardens and infiltration basins and trenches, are intended to reduce the total runoff volume by infiltrating stormwater. Six to seven aquifers underlie the metro area and provide residents with drinking water.
The University of Minnesota Technical Assistance Program (MnTAP) identified opportunities for industrial water users in the North and East Metro Groundwater Management Area (N&E Metro GWMA) to reduce their water consumption as part of the Department of Natural Resources strategies under the GWMA plan. The source of water in this delineated region is almost exclusively groundwater. Several approaches were used for this effort in order to reach, inform, and interact with a broad range of industrial users.