Lead & Galvanized Water Service Lines in Massachusetts, How to Tell, Who Pays, What to Do

If you own an older Massachusetts home and just learned the buried pipe feeding your house might be lead, here's the headline: a lead water service line replacement in Massachusetts is increasingly free or heavily subsidized, and your first move is to call your water department, not a private plumber. Under the EPA's Lead and Copper Rule Improvements (LCRI), every lead and "galvanized requiring replacement" service line under a water system's control has to be fully gone within 10 years, with the clock starting November 1, 2027. Towns like Boston and Somerville are already replacing the whole line at no charge to the homeowner, funded by the MWRA and federal money. So before you spend a dollar, find out whether your town's program already covers it.

The service line is the pipe that runs from the water main in the street to your basement. It's a different animal from the pipes inside your walls, replacing those is whole-home repiping, covered in our galvanized vs. copper vs. PEX repiping guide. This article is strictly about that buried line from the main to the meter: how to tell what it's made of, whether you're legally on the hook to replace it, who pays, and what to actually do. For the bigger picture on hiring and licensing, see the plumbing hub.

What is a water service line, and what's "the private side"?

A water service line is the single pipe carrying drinking water from the public main under the street into your home. Ownership of that one pipe is split in two, and the split is the source of most confusion.

The public side runs from the main to your property line and is owned by the city or water department. The private side runs from the property line to the water meter in your basement, and you own it. In Somerville, for example, the city owns the pipe from the property line to the main, and the homeowner owns the pipe under their own property, a split most MA towns use.

Why it matters: under the federal rule, a service line only counts as fully replaced when the entire length is non-lead, both the customer side and the system side. Swapping out just the city's half does nothing for your water if your half is still lead. That's also why partial replacements are banned (more on that below).

How do I tell if I have a lead or galvanized water service line?

You can usually identify your service line yourself in about five minutes with a coin and a magnet, at the point where the pipe enters your basement near the water meter. Lead, galvanized steel, and copper each behave differently.

The scratch test and the magnet test

Find where the service line comes through your basement wall or floor and reaches the meter. Then run two quick tests on that pipe:

• Lead: soft, dull gray, and not magnetic. Scratch it with a coin or key , it scrapes easily and the scratch turns shiny silver. A magnet will not stick. Lead pipe is often slightly bulged at joints and can be scratched with a fingernail.
• Galvanized steel: silver-gray, harder, and magnetic, a fridge magnet sticks firmly. Scratching it does not reveal bright shiny metal the way lead does.
• Copper: the color of a penny (or green if corroded), harder than lead, not magnetic, and scratches to a copper tone, not silver.

If a magnet sticks, it's galvanized, which is not automatically safe, as the next section explains.

The age clue, homes plumbed before 1986

The federal ban on installing new lead pipe took effect in 1986, so a home plumbed before then is the prime candidate for a lead service line. A home built after 1986 is very unlikely to have one, but "unlikely" isn't "impossible", old materials sometimes lingered in supply rooms, and additions or repairs can muddy the picture. Treat 1986 as the line in the sand, not a guarantee, and verify with the tests and your town's records rather than the build year alone.

Check your town's service-line inventory or call the water department

Every public water system in Massachusetts was required to complete an initial service-line inventory by October 16, 2024, identifying which lines are lead, galvanized requiring replacement, non-lead, or unknown. Many towns, Somerville, Concord, Lexington, Reading, Malden, and Brookline among them, put a lookup tool online where you type your address and see your line's status. If your town has one, that's the fastest answer. If not, call the water department; they have the record on file.

Lead vs. galvanized, and what "GRR" means

Galvanized pipe can be just as much of a problem as lead, and that surprises people. The reason is a category the EPA calls Galvanized Requiring Replacement (GRR).

A galvanized service line is GRR if it is, or ever was, downstream of a lead line, or downstream of a line whose material is unknown. Galvanized steel absorbs lead from any lead pipe upstream of it over the years, then keeps releasing it into your water long after the lead section is gone. The rule is strict: if a water system can't prove a galvanized line was never downstream of lead, it's classified as GRR and must be replaced.

There's a related wrinkle on the lead side. A lead-lined galvanized line counts as a lead service line outright. So "it's galvanized, not lead" is not the all-clear it sounds like. Under the LCRI, both lead lines and GRR lines are on the mandatory replacement list.

Does my Massachusetts town make me replace a lead service line?

Yes, eventually, and not on a vague timeline. The EPA's Lead and Copper Rule Improvements require water systems to replace all lead and GRR service lines under their control within 10 years, and the dates are set.

• October 16, 2024, initial service-line inventory was due.
• November 1, 2027, baseline inventory and the formal replacement plan are due, and the 10-year replacement window begins (program year 1 runs from that date through December 31, 2028).
• The lead action level dropped from 15 µg/L to 10 µg/L under the LCRI, a lower threshold that triggers system-wide action.
• Partial replacements are prohibited except for emergency repairs or coordinated infrastructure work, and they don't count toward a system's replacement rate. Ripping out half a lead line can briefly spike lead levels, which is exactly why the rule bans it.

You'll see "all lead pipes gone by 2037" in news coverage. That's a rough approximation of "10 years from the rule," not a hard legal date. The verified mandate is within 10 years starting November 1, 2027, with deferred deadlines allowed only in limited cases. The practical reality for you as a homeowner: your town is on a clock, which is precisely why funded programs are ramping up now , and why waiting for your town to come to you can mean getting the work done for free.

Who pays, the city or me? (the part everyone gets wrong)

This is the single biggest point of confusion, so here it is plainly: in a growing number of Massachusetts communities, the city replaces the entire line , including your private side, at no cost to you, using MWRA loans and federal funds. In others, the city handles the public side and offers a loan or grant to help with the private side. The answer is town-specific, which is why national blogs can't give it to you. Here's how the named MA programs compare.

Authority / program	Public side (main → property line)	Private side (property line → meter)	What it costs the homeowner
Somerville LSL Program	City-funded	City-funded (via MWRA)	Full line replaced at no charge to the property owner
Boston (BWSC) Lead Replacement Incentive	BWSC-funded	Replaced at no cost (federal IIJA funding); Lead Hotline 617-989-7888	$0, if eligible, active/non-delinquent account, owner consent, no extraordinary obstacles
MWRA-served communities (47 of 52 eligible)	Loan-funded	25% grant for towns that fully fund private-side removal	Varies by town; many pass the funding through to you
Cambridge, Lynn, Clinton, Leominster, Worcester	Not MWRA-loan eligible	Not MWRA-loan eligible	Check the local program directly, terms differ
EPA "Get the Lead Out" cities (Chelsea, Fall River, Malden, Melrose, Revere, Taunton)	Federally accelerated	Federally accelerated	Targeted federal funding to speed replacement

The takeaway: do not assume the private side is automatically your bill. In Somerville and Boston right now, it isn't. Even where it is, MWRA's 25% private-side grant and MassDEP loan forgiveness can shrink it dramatically. Call before you pay.

How much does it cost if you're on your own?

If no program covers your private side, the honest answer is: get quotes from licensed plumbers, because there's no reliable published Massachusetts figure to hand you. National blogs throw around a $3,000–$8,000 range for a private-side replacement, but that number isn't confirmed on any Massachusetts primary source, and your real cost swings on excavation distance, depth, driveway or sidewalk restoration, and how far the pipe runs to the street.

What's verifiable is the funding that can erase or slash that bill, so price the job and the programs in the same conversation. Ask your water department two things: "Does your program cover my private side?" and "If not, what loan or grant can I tap?" In many towns the practical out-of-pocket lands far below the generic blog range, or at zero. Any plumber doing this work also needs to pull the right permits; our plumbing permits and licensing guide covers who's allowed to do it and what gets inspected.

Massachusetts programs that pay for lead service line replacement

Several layers of funding stack up in Massachusetts, and they're the reason "call the water department first" is the right move. Each is a self-contained source of money for this exact job.

• MassDEP Drinking Water State Revolving Fund (DWSRF): offers 0% interest loans plus loan forgiveness for lead service line planning and construction tied to LCRI compliance, with up to 40% forgiveness on LSL projects subject to available funds.
• MWRA Lead Service Line Replacement Program: a pool of $200 million in 10-year, zero-interest loans ($100M committed in 2016 plus another $100M in 2024), available to 47 of the 52 MWRA water communities. It includes a 25% grant component for communities that fully fund removal of the lead line on private property. The five not eligible for the loans are Cambridge, Lynn, Clinton, Leominster, and Worcester.
• Boston Water and Sewer Commission (BWSC): replaces the private lead service line at no cost to the property owner using federal IIJA funding. Work generally runs April through October. Eligibility requires an active, non-delinquent account, owner consent, and no extraordinary obstacles. The Lead Hotline is 617-989-7888.
• EPA "Get the Lead Out" partnership: in September 2024 the EPA named six Massachusetts cities, Chelsea, Fall River, Malden, Melrose, Revere, and Taunton, for accelerated lead line replacement.
• Federal funding flowing to MA: in December 2025 the state was set to receive $55 million from the EPA (including $21M re-allotted from other states), on top of roughly $102 million spent since 2022 supporting about 160 communities and water systems.

What to actually do, the decision tree

The right sequence saves most homeowners the entire cost. Work it in order rather than calling a plumber first.

1. Call your water department (or use its online inventory lookup). Ask whether your service line is listed as lead, GRR, non-lead, or unknown, and whether the town has an active replacement program.
2. Ask specifically: does the program cover the private side, and is it free? In Somerville and Boston the answer is currently yes. Don't assume; confirm.
3. Enroll in the town/MWRA program if one exists. This is where the MWRA loan and 25% private-side grant, MassDEP forgiveness, or BWSC's free replacement get applied. Getting on the list early matters, programs run on the warm-season schedule, roughly April through October, because frost depth makes winter excavation hard.
4. Do not pay for a partial replacement. Replacing only one side is banned outside emergencies, doesn't satisfy the rule, and can spike lead levels.
5. After replacement, use the protections the system must provide. Following a replacement, the water system must give you notice of a temporary lead spike, flushing instructions, an ANSI-certified pitcher or point-of-use filter with six months of cartridges, and an offer of a follow-up tap test 3–6 months later. Use the filter and flush as instructed, newly disturbed pipe can shed lead for weeks.
6. If you're buying or selling, flag it during inspection. A lead service line often surfaces in a home inspection. Knowing the town program, and whether the replacement can be scheduled for free, turns a scary inspection finding into a manageable line item.

If lead in general is on your radar for an older Massachusetts home, the same era's exterior often carries its own legacy hazards; our guide on asbestos and lead in older Massachusetts siding covers those. And if your interior pipes are also aging, that's the separate job covered in the repiping guide, while a failing water heater is its own project, see the water heater replacement cost guide.

FAQ

How do I tell if I have a lead or galvanized water service line? At the point where the pipe enters your basement near the meter, scratch it with a coin and hold a magnet to it. Lead is soft and dull gray, scratches to a shiny silver, and is not magnetic. Galvanized steel is harder, doesn't scratch shiny, and a magnet sticks to it. Copper is penny-colored and not magnetic.

What is "galvanized requiring replacement" (GRR)? GRR is a galvanized service line that is, or ever was, downstream of a lead line , or downstream of a line of unknown material. Galvanized steel absorbs and re-releases lead over time, so under the LCRI it must be replaced unless the water system can prove it was never downstream of lead.

Who pays for replacing a lead service line in Massachusetts, the city or me? It depends on your town. Somerville and Boston currently replace the entire line, including your private side, at no cost to the homeowner using MWRA and federal funding. In other MWRA communities the city handles the public side and may pass through a 25% private-side grant or a loan. Call your water department to confirm which applies.

Is replacement free in Boston or Somerville? Yes for eligible properties. Somerville replaces the full line at no charge via MWRA funding. Boston's BWSC replaces the private lead line at no cost using federal IIJA money, for accounts that are active and non-delinquent with owner consent.

When do all lead pipes have to be gone, is it 2037? "2037" is a rough approximation. The verified federal mandate is that all lead and GRR lines under a system's control be replaced within 10 years, with the window starting November 1, 2027, and deferred deadlines allowed only in limited cases.

What is the EPA lead action level now? Under the Lead and Copper Rule Improvements, the lead action level dropped from 15 µg/L to 10 µg/L. When water samples exceed it, the system must take action.

Should I use a filter while I wait for replacement? Yes. The EPA and CDC say there is no known safe level of lead in a child's blood, so a filter is worth using if your line is lead. After a replacement, the water system is required to provide an ANSI-certified pitcher or point-of-use filter with six months of cartridges, because newly disturbed pipe can briefly release more lead.