Subdivision Review Program
The Department of Environmental Quality Subdivision Program reviews divisions of
land comprising less than 20 acres, as well as condominiums and recreational camping vehicle and
mobile home parks, regardless of the size of the parcel where they are
located. This review under the sanitation in subdivisions regulations is limited to sanitation
facilities, including the water supply, sewage disposal, solid waste
disposal, and storm drainage systems. Proper design and location of these facilities is necessary to
protect the quality of water for public water supplies, domestic uses, and
other beneficial uses, including uses related to agricultural, industry,
recreation, and wildlife.
Subdivisions are reviewed prior to creating the parcels
to assure that adequate sanitation facilities can be constructed,
operated, and maintained to support each parcel. Planning ahead for proper design and location of the
facilities helps protect both our surface and ground water in Montana.
Design manuals have been developed to provide standards for
wastewater treatment systems, water supply development, and storm drainage
systems. The regulations also set out minimum separation distances between water supply sources and
potential contamination sources such as wastewater treatment systems,
surface waters, and floodplains. The regulations and subdivision review are structured to prevent pollution
problems through the proper design, location, operation, and maintenance
of sanitation facilities.
Types of Activities
Regulated, Application Requirements, Permitting
Procedures, Criteria, Fees, Additional Information
