State guide
Montana
Montana DEQ has a dedicated Lead & Copper Rule page that discusses inventories, funding, and reimbursement for systems, and several cities now publish local line-status pages.
Checked against official sources on October 4, 2026. Rules and links change; confirm with the office listed before you act.
Official resources in Montana
Kalispell residents can use this page to see line classifications, understand notices, and learn about SRF-assisted replacement authorization.
Great Falls page with inventory information, yearly notices, instructions to verify your line, and current city policy statements.
Billings residents can use this page to access the water service line material viewer by address.
Bozeman’s official service-line page explains local lead context and points residents to the city inventory lookup.
Key facts for Montana
- Montana DEQ says funding is available for inventories, planning, and lead service line replacement activities.
- Montana DEQ says it can provide technical assistance and reimbursement up to $14,500 for lead service line activities.
- Great Falls says city code makes the entire service line from main to building the property owner’s responsibility.
- Great Falls says federal funding for private replacement work is currently not accessible directly to property owners.
- Kalispell says Resolution 6239 authorizes SRF resources to assist replacement of non-compliant lead and GRR lines from the water main to the building.
- Bozeman says its practice is to completely remove and replace lead service lines whenever it replaces water mains or discovers lead lines in the field.
Utility help for homeowners in Montana
| Utility | city | program | Details |
|---|---|---|---|
| City of Kalispell Public Works | Kalispell | Lead & Copper Rule / SRF-assisted replacement under Resolution 6239 | Kalispell says Resolution 6239 authorizes use of State Revolving Fund resources to assist replacement of non-compliant lead and galvanized requiring replacement service lines from the water main to the building. |
| City of Great Falls | Great Falls | Lead Service Line Replacement Project | Great Falls approved a pilot project funded through Water Utility Funds and an SRF loan with 60% principal forgiveness to replace up to 13 lead or galvanized service lines at selected volunteer properties. |
What to do next
- Check the Montana DEQ page first to understand state inventory and replacement requirements, then look for your city’s address viewer or classified-address list.
- If you are in Kalispell, contact Public Works and ask for the current replacement schedule for your address if your notice says lead or GRR.
- If you are in Great Falls, verify your service line with the city hotline or form before paying for work, because the city continues updating classifications and notices.
Helpful guides
- Who pays to replace the private side of a lead service line?
- Lead service line replacement grants, reimbursements and loans
- How to tell if your water service line is lead
- The Lead and Copper Rule Improvements: what homeowners need to know
Lead line cost-share estimator →