The Municipal Sewer Connections grant program seeks to preserve Montana’s water resources by providing financial assistance to projects that replace septic systems with connections to municipal or group sewer systems.
Donor Name: The Montana Department of Natural Resources & Conservation
State: Montana
County: All Counties
Type of Grant: Grant
Deadline: 03/30/2026
Size of the Grant: $10,000 to $100,000
Grant Duration: Grant Duration Not Mentioned
Details:
The purpose of the Nonpoint Source (NPS) Grant Program is to provide financial assistance to projects which measurably preserve Montana’s water resources. Projects must improve water quality or water quantity, including stream flows and water storage in existing natural systems, such as riparian areas, floodplains, and wetlands.
NPS Municipal Sewer Connections Grants are intended to offset or eliminate the cost of terminating individual or group septic systems and connecting into municipal sewer systems. Grant funds must directly offset costs for individual homeowners to connect. Projects must measurably eliminate or reclaim septic systems.
Funding Information
$5,000 per municipal connection; no more than $100,000 per grant.
Eligible Projects
NPS Municipal Sewer Connections Grants are intended for projects which will eliminate individual or group septic systems.
Criteria for Eligible Projects:
- Septic systems must be eliminated and reclaimed.
- Applicants must use grant funds for directly offsetting or eliminating costs for individual homeowners or businesses to connect to a municipal sewer system.
- Priority given to connection projects that demonstrate septic risks to state waters.
Eligibility Criteria
- Eligible applicants include government entities.
- Governmental entities include, but are not limited to:
- Cities
- Irrigation Districts
- Towns
- School Districts and Universities
- Counties
- Regional Water Authorities
- Water and/or Sewer Districts
- State Agencies
- Conservation Districts
- Tribal Government
For more information, visit DNRC.


