This permit is required for any person, agency, or entity, either public or private, initiating a short-term activity that may cause unavoidable short-term violation of state water quality standards. The major application of this law is related to sediments and turbidity caused by construction or other activities.
Helpful Hint: Oftentimes, the 318 permit is included within the 310 permit process.
Contact: Water Protection Bureau
Permitting and Compliance Division
Department of Environmental Quality
1520 E. Sixth Avenue, P.O. Box 200901
Helena, Montana 59620-0901
Phone: (406) 444-3080