Alteration Permit (310
Permit): Required under
the Montana Natural Streambed and Land Preservation Act.
These are the most common permits issued by local Conservation
Districts for activities impacting streams including: installation of
any material on a streambank (i.e. rip rap, fencing to stabilize
slope), temporary stream crossings during low flow periods, irrigation
diversion structures, bridges etc.
The person initiating the project must complete a permit
application available at all conservation district offices prior to
beginning any activity, and approval is required.
and Fill Permit
(404 Permit): Required
under the Federal Clean Water Act.
Projects that include construction, road building and
maintenance, culvert installation, stream modification, large vehicle
crossing on or near a stream, or any activity that may contribute a
“significant” amount of sediment, dredging or fill material to a
waterbody or wetland. This
permit is issued and reviewed by the US Army Corps of Engineers and
the EPA. Permit
information and assistance is available at all conservation districts.
Water Right Permit:
Required under the Montana Water Use Act. Any person, agency,
or governmental entity intending to acquire new or additional water
rights, or to change an existing water right, must obtain a water
permit. This applies to any
surface water appropriation, and groundwater appropriation over 35
gallons per minute or 10 acre-feet per year.
Water right applications are available at county clerk and
recorders’ offices, and all eight Water Resources Regional Offices
of the DNRC in most major Montana towns and cities.
Western Montana river and lake basins are closed to new water
Required under the Montana Floodplain and Floodway Management
Act. Anyone planning new
construction, the placement of fill, roads, bridges, irrigation
structures, homes or additions within a designated 100-year floodplain
must obtain a permit from the Floodplain Management section of the
DNRC. Contact a local
floodplain administrator (in most county planning offices) within the
county or the DNRC in Helena prior to initiating the project.
Required under county septic system regulations.
Any person intending to construct, alter, extend, or operate a
sewage treatment and disposal system must obtain a permit from the
systems must be 100 feet from the 100-year floodplain, and 6 feet
above groundwater (Montana Association of Conservation Districts
1997). Contact the
sanitarian of the county wherein the project is to occur before
The DEQ must be contacted before mining or dam construction
activities are initiated below the high water mark on any lake or
stream in Montana. Also,
the DEQ must be contacted before any liquid or solid is discharged
into any surface or ground waterbody, or for any temporary violation
of Montana Surface Water Standards.
courtesy of Neysa King