U.S. Geological Survey ground-water studies in Minnesota

Nearly 700 million gallons of ground water are withdrawn every day in Minnesota, mostly for public supply, irrigation, and domestic and commercial use. About 94 percent of the public water-supply systems in the State use ground water and 75 percent of all Minnesotans obtain their domestic supplies from ground water. The major issues related to this important resource in Minnesota are:

• Availability of ground water and effects of developing water supplies from wells in buried-drift aquifers,
• Ground-water contamination from hazardous wastes, and
• Effects of land use on ground-water quality.