LONDONDERRY Lead Service Line Inventory
What you need to know about lead in Londonderry water
LONDONDERRY serves approximately 6,255 people in New Hampshire. Like all US water systems, it is required by the EPA to maintain an inventory of lead service lines—the pipes that connect the water main to individual homes.
Current inventory status: LONDONDERRY has not yet completed a full lead service line inventory. This means the utility does not yet have a comprehensive count of how many lead lines exist in the system. This is common; many smaller systems nationwide are still in the early stages of mapping their infrastructure.
Why this matters for your home
A lead service line is one potential source of lead in drinking water. Lead can leach into water, especially if the water is corrosive or if the line is old. Even at low levels, lead exposure is a health concern—especially for children and pregnant people.
Not all homes have lead lines. Yours may have:
- A lead service line
- A galvanized steel line (which can contain some lead)
- A non-lead line (copper, plastic, or other materials)
The only way to know for sure is to contact your water utility or have your water tested.
Your next steps
Because LONDONDERRY's inventory is still being developed, you won't find a definitive list of affected addresses yet. However, you can take action now:
- Contact LONDONDERRY directly and ask whether your specific address has a known lead line. Provide your street address and account number if you have it.
- Request a free or low-cost water test to check for lead. Many utilities offer this service.
- Check your home's age and records. Homes built before 1986 are more likely to have lead service lines.
- Visit the EPA's Lead and Copper Rule page for steps to reduce lead exposure while waiting for infrastructure replacement.
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Key figures
| Total inventoried lines | 0 |
|---|---|
| BIL/IIJA funding received | — |
| Replacement plan status | Not reported |
| Utility's LCRR inventory | Not provided |
Frequently asked
How do I know if my house has a lead service line?
Contact LONDONDERRY water utility directly with your address—they may have records of your line material. You can also have your water tested for lead, or a plumber can inspect the line where it enters your home (it will look dull gray, not shiny like copper).
Is lead in water dangerous?
Lead can be harmful, especially for children and pregnant people. For health concerns, contact your pediatrician or the CDC. The EPA recommends using filters certified to remove lead and flushing your tap before drinking.
When will LONDONDERRY finish its lead inventory?
Contact LONDONDERRY directly to ask about their timeline. All utilities must complete inventories under EPA rule, but timelines vary by system size and resources.
Can I get my service line replaced?
Some states and utilities offer replacement programs or rebates. Ask LONDONDERRY about their replacement plan and any available funding or assistance for homeowners.