Groundwater Protection

Montanans rely heavily on groundwater as the primary source of drinking water for many rural domestic water supplies as well as public water systems. Groundwater is also important for irrigation, livestock, and indirectly for thermoelectric power. Montana’s programs for the protection and remediation of groundwater are driven by the need to keep groundwater safe from contamination and to protect and support the current and future uses of groundwater

Although DEQ has primary responsibility for groundwater protection, a number of programs across the state aid in the protection of groundwater. Several agencies, the Department of Environmental Quality, Department of Natural Resources and Conservation, and the Department of Agriculture implement the majority of federal and state programs relating to groundwater.

How DEQ Protects Groundwater

  • Source Water Assessment and Protection
  • Groundwater Pollution Control System
  • Groundwater Monitoring
  • Education for Private Well Owners