Governing Law and Regulations
Montana Department of Environmental Quality (DEQ) Permitting and Compliance Division
Montana Department of Natural Resources (DNR)
Montana Department of Agriculture (MDA)
U.S. Environmental Protection Agency (EPA) Region 8
See ADDRESSES & CONTACTS for addresses and telephone numbers.
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. The state generally follows the federal requirements for groundwater monitoring for hazardous waste facilities. See the national section GROUNDWATER for additional guidance.
The Montana Department of Environmental Quality (DEQ) also issues Montana Groundwater Pollution Control System (MGWPCS) permits for discharges of wastewater to groundwater in the state (Administrative Rules of Montana (ARM) 17.30.1001 to 17.30.1045). The state has also developed a licensing program for water well drilling, which includes provisions for construction standards.
Montana has also enacted the Agriculture Chemical Groundwater Protection Act to protect groundwater supplies from agricultural chemical applications.
• Administration and enforcement.