State guide
New Hampshire
New Hampshire has a state lead page and an official statewide service line inventory map layer through NHDES.
Checked against official sources on October 4, 2026. Rules and links change; confirm with the office listed before you act.
- State lead service line page
- Official page →
Official resources in New Hampshire
New Hampshire's main state lead page for drinking water information and customer guides.
Official map viewer for the statewide NHDES service line material dataset.
Concord's official service line page with inventory links, self-reporting, and the city's statement about possible financing help for private replacement.
Dover's official inventory and replacement page explaining ownership, city-side replacement, filters, and follow-up testing.
Manchester's official inventory page with homeowner self-identification steps and annual report link.
Key facts for New Hampshire
- NHDES guidance says all service lines must be inventoried regardless of ownership, including customer-owned portions.
- New Hampshire's statewide inventory map is published through NHDES as the Service Line Material 2024 layer.
- Concord says it has already proactively replaced lead service lines on the city's side of the system.
- Concord reported 0 lead private service lines, 202 galvanized lines, and 11,217 non-lead private service lines as of November 1, 2025.
- Concord says potential financing solutions may be available to help property owners replace customer-owned service lines.
- Dover says the city pays all costs for replacing the publicly owned portion, but its page does not publish a private-side subsidy program.
Utility help for homeowners in New Hampshire
| Utility | city | program | Details |
|---|---|---|---|
| City of Concord General Services / Water | Concord | — | Concord says that if you plan to replace the customer-owned portion of the service line, potential financing solutions may be available to assist property owners. |
What to do next
- Use the NHDES map and your utility's inventory page together; some cities publish local inventories that are easier to read than the statewide layer.
- If you are in Concord and your line is galvanized or unknown, contact the city before replacing it yourself because the city says potential financing solutions may be available.
- If your utility offers only city-side work, ask whether they also provide a free post-replacement filter, water test, or inventory assistance while you price private-side replacement.
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 →