Groundwater supplies 75 percent of Minnesota's drinking water and 90 percent of agricultural irrigation. Availability varies throughout the state and may be limited in areas for larger withdrawals.

State Agency Roles

  • Minnesota Department of Natural Resources: availability and ecological impacts
  • Minnesota Department of Agriculture: agricultural pesticide and fertilizer contamination
  • Minnesota Pollution Control Agency: industrial contamination
  • Minnesota Department of Health: drinking water supply

icons representing agencies: cities, dump trucks, farms, trees




    Data and Maps




    Related Links

    • Groundwater Provinces: Summary of aquifer and groundwater resource differences at the regional level.
    • Groundwater and the Mt. Simon Aquifer Video: Part 1 and Part 2
      • A primer on groundwater and an explanation of the results of a study of groundwater usage in a major water supply aquifer that serves the Twin Cities Metropolitan Area and southeastern Minnesota.