State guide
Massachusetts
Massachusetts does not appear to use one single statewide ownership split for water service lines. MassDEP says ownership varies by water system and is frequently split so customer ownership begins at the curb stop, but official city pages reviewed also show property-line and full-owner-responsibility models.
Checked against official sources on October 4, 2026. Rules and links change; confirm with the office listed before you act.
Try a ZIP like 30303, “Travis County” or “Columbus, OH”
- Who usually owns the water service line
- There is no single statewide split; MassDEP says ownership varies by water system, often with customer ownership beginning at the curb stop, while local pages reviewed range from property-line splits to full owner responsibility from main to dwelling.
- State drinking water program
- Massachusetts Department of Environmental Protection (MassDEP) Drinking Water Program
- State lead service line page
- Official page →
- Permits for repair or replacement
- Massachusetts says the local plumbing inspector must issue a permit before plumbing is installed, altered, removed, replaced, or repaired, and permits are issued only to licensed plumbers.
- Assistance programs
- MassDEP says utilities may have local options and state SRF funding exists for systems, but a MassDEP webinar Q&A says there are currently no MassDEP or Massachusetts SRF programs that assist individual homeowners directly.
Official resources in Massachusetts
MassDEP Drinking Water Health & Safety
MassDEP’s main public drinking water page with program contacts, lead resources, and state drinking water information.
MassDEP Lead in Drinking Water
MassDEP’s public lead page with consumer guidance, inventories, labs, and related lead-in-water resources.
MassDEP Lead Service Line Replacement Requirements
Explains when MassDEP requires lead service line replacement and what utilities must do on the private side.
Boston Water and Sewer Commission Lead Replacement Incentive Program
Boston’s official program page for no-cost replacement of eligible private lead water services.
Cambridge Water Service Information
Cambridge’s official page for checking service-line material and arranging a site visit.
Key facts for Massachusetts
- MassDEP says service-line ownership varies by water system and customer ownership frequently begins at the curb stop.
- MassDEP says a utility required to replace lead service lines must offer to replace the homeowner portion at the homeowner’s expense if it does not own or control it.
- Massachusetts law says the local plumbing inspector must issue a permit before plumbing is installed, altered, removed, replaced, or repaired.
- Boston says the private water service runs from the property line into the building and replacement can be no cost to eligible owners.
- Cambridge says installation and repair from the water main to the dwelling is the property owner’s financial responsibility.
- Medford says the city maintains water lines and lateral service lines from the main line to curb boxes.
Utility water service line rules in Massachusetts
| Utility | city | phone | Details |
|---|---|---|---|
| MassDEP Drinking Water Program Suffolk | Boston | Not published* | State drinking water program contact for public drinking water issues and lead resources. |
| Boston Water and Sewer Commission Lead Replacement Incentive Program Suffolk | Boston | 617-989-7888 | Boston says private water service is owner responsibility from the property line into the building and eligible lead replacement is at no cost to the owner. |
| Cambridge Water Department Middlesex | Cambridge | 617-349-4770 | Confirms service-line material by site visit; city pages say owners are financially responsible, but Cambridge can cover replacement within the public right of way in its lead-line work. |
| Worcester DPW Water Operations Worcester | Worcester | 508-929-1300 | Handles Worcester’s service-line inventory questions and coordinates investigations when service material is unknown. |
| Medford Water Quality Division Lead and Copper Program Middlesex | Medford | 781-393-2561 | Offers free water testing and service inspection; Medford says it maintains laterals from the main to curb boxes and reimburses $1000 toward residential service-line replacement. |
| New Bedford DPI Repair Shop Bristol | New Bedford | (508) 979-1550 | City page says ownership is typically shared and the homeowner typically owns the section under the homeowner’s property; call for replacement options and any payment assistance. |
* Not published: the official page doesn't list it. Call the office to confirm before you rely on it.
What to do next
- Check your local utility’s inventory map or ask for a site visit before assuming where public ownership ends.
- If you are replacing a lead line yourself, contact the utility first so records and any utility-side work can be coordinated.
- Use a licensed plumber and confirm permit requirements with the local plumbing inspector before private-side replacement work starts.
Not seeing your utility or county?
We list a utility only when an official government page publishes its rules. If yours isn't in the table above, it may not publish them online yet. Here's what to use instead, in order:
- General Start with the statewide information above. It applies across Massachusetts, but cities and counties can add their own steps, fees or deadlines.
- Closest verified Nearest places where we have verified local data outside this state (distance from Massachusetts's population center, for comparison only):
- Manchester Water Works, New Hampshire · about 49 miles
- Manchester Water Works Service Line Protection Plan, New Hampshire · about 49 miles
- NHDES Drinking Water and Groundwater Bureau, New Hampshire · about 67 miles
- Call to confirm Ask the official office. They have the current local rule, fee and form.MassDEP Drinking Water Health & Safety
Website →Phone not shown: use the contact page on the official website above.Your city or county office: Local governments →Not sure who handles it locally? USAGov's free help line, 1-844-872-4681, or the Massachusetts page on USA.gov can point you to the right office. - Know the current info? Tell us and include a link to the official page. We check every tip before it goes up.
Helpful guides
- Who is responsible for the water line to your house?
- The curb stop, meter and property line, explained
- Water line leak in your yard: what to do
- Water service line replacement costs
Water line responsibility check →
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