A guide for people buying a house
Lead pipes, and what the seller has to tell you
Since November 2024 water utilities have had to send a letter every year to every customer whose service line is lead, galvanized, or unknown. About 25.6 million addresses get one. If you are buying a house, that letter is the single most useful piece of paper in the transaction, and almost nobody asks for it.
2.19Mlines reported as lead
1.00Mgalvanized needing replacement
22.45Mlines nobody has identified yet
51states and DC covered below
The short version
Three things are true almost everywhere, and they are worth knowing before you talk to anyone.
- Sellers disclose what they know, not what they could have found out. Nearly every state disclosure law is written around the seller's actual knowledge, and a lot of them say in so many words that the seller does not have to inspect or investigate. If the seller genuinely does not know, in most states there is nothing to disclose.
- The utility's letter is what changes that. A seller who got a letter saying the line is lead, and then answered "no" to a question about lead pipes, is in a very different position from a seller who never knew. The letter is evidence of actual knowledge. That is the whole ballgame.
- You can look it up yourself, today, without asking anyone. Utilities are required to publish their inventory, and for lead and galvanized lines it has to be findable by address.
One caution about the 22 million "unknown" lines. The federal rule makes the utility tell those customers the material "is unknown but may be lead." That is a letter saying nobody knows. It is not the seller hiding something. Most of the 25.6 million letters are that letter, not the "your line is lead" letter.
1
Look it up before you make an offer
You do not need the seller's cooperation for this, and it takes about ten minutes.
Your water utility's inventory
Every community water system had to file a service line inventory and make it public. For lines they have classified as lead or galvanized, the inventory has to be searchable down to the address. Search your utility's name plus "service line inventory," or call and ask for the service line material at the address. They have to tell you.
EPA's national dashboard
EPA publishes what every state reported at the Service Line Inventory dashboard. It is system-level, not address-level, so use it to see how bad your utility's numbers are, then go to the utility for the address.
Ask the seller for the letter itself
If the house is on public water, the owner has been getting an annual notice since late 2024. Ask for a copy. It is one page and it says which of the three categories the line is in. A seller who says they never got one is telling you something useful either way.
What the letter looks like. For a line classified as lead or galvanized, the federal rule requires the notice to state that the service line is lead or galvanized requiring replacement, and to tell you how to notify the utility if you disagree with the classification. For an unknown line, the notice has to say the material is unknown but may be lead, and point you to ways to verify it. The categories come from the utility's records, not from anyone digging up the yard. Records are wrong in both directions often enough that a 2026 audit of New York's inventory found a city model that recorded tens of thousands of "not lead" determinations in a set the auditors thought held over a thousand real lead lines.
2
What your state actually makes the seller tell you
This is the part almost nobody gets right, including some of the people writing about it. Disclosure is state law, and the states are not close to uniform. Pick yours.
All 51 jurisdictions at a glance
The column that matters most is the middle one. A state form that asks a direct question about lead pipes is what turns a seller's silence into a false answer on a state document. Most forms do not ask.
| State | Does the form ask about lead in the water? | What the seller has to know | If they hid it |
|---|---|---|---|
| Alabama | No, lead paint only | Court-made rules only | Weak |
| Alaska | No, lead paint only | Know or should have known | Only if you prove they knew |
| Arizona | Partly, it asks pipe material | Court-made rules only | Only if you prove they knew |
| Arkansas | No, lead paint only | Court-made rules only | Only if you prove they knew |
| California | No, it only asks the water source | Only what they actually know | Very weak |
| Colorado | Partly, it asks pipe material | Only what they know, need not look | Only if you prove they knew |
| Connecticut | Yes, it names lead plumbing | Only what they know, need not look | Only if you prove they knew |
| Delaware | Yes, it names lead plumbing | Only what they actually know | Only if you prove they knew |
| District of Columbia | Yes, it names the service line | Only what they know, need not look | Only if you prove they knew |
| Florida | No, it only asks the water source | Only what they actually know | Only if you prove they knew |
| Georgia | No state form | Court-made rules only | Weak |
| Hawaii | No, lead paint only | Only what they know, need not look | Only if you prove they knew |
| Idaho | No, it only asks the water source | Only what they actually know | Only if you prove they knew |
| Illinois | Yes, it names lead plumbing | Only what they know, need not look | Only if you prove they knew |
| Indiana | No, lead paint only | Only what they actually know | Only if you prove they knew |
| Iowa | Yes, it names the service line | Know or should have known | Real claim |
| Kansas | Partly, it asks pipe material | Court-made rules only | Only if you prove they knew |
| Kentucky | No, lead paint only | Best of their knowledge | Only if you prove they knew |
| Louisiana | No, lead paint only | Only what they actually know | Only if you prove they knew |
| Maine | No, lead paint only | Only what they know, need not look | Only if you prove they knew |
| Maryland | No, lead paint only | Only what they know, need not look | Only if you prove they knew |
| Massachusetts | No, lead paint only | Court-made rules only | Very weak |
| Michigan | Partly, it asks pipe material | Only what they actually know | Only if you prove they knew |
| Minnesota | No state form | Only what they know, need not look | Only if you prove they knew |
| Mississippi | No, it only asks the water source | Only what they actually know | Very weak |
| Missouri | Yes, it names lead plumbing | Best of their knowledge | Only if you prove they knew |
| Montana | No state form | Court-made rules only | Only if you prove they knew |
| Nebraska | No, lead paint only | Only what they actually know | Weak |
| Nevada | No, lead paint only | Only what they actually know | Only if you prove they knew |
| New Hampshire | No, it only asks the water source | Court-made rules only | Weak |
| New Jersey | Yes, it names the service line | Best of their knowledge | Only if you prove they knew |
| New Mexico | No, not in a way that reaches the buried line | Only what they actually know | Only if you prove they knew |
| New York | Yes, it names lead plumbing | Only what they actually know | Only if you prove they knew |
| North Carolina | Partly, it asks pipe material | Only what they know, need not look | Very weak |
| North Dakota | Yes, it names lead plumbing | Only what they actually know | Only if you prove they knew |
| Ohio | No, lead paint only | Only what they actually know | Only if you prove they knew |
| Oklahoma | No, lead paint only | Only what they actually know | Only if you prove they knew |
| Oregon | No, lead paint only | Only what they actually know | Very weak |
| Pennsylvania | Yes, it names lead plumbing | Only what they know, need not look | Only if you prove they knew |
| Rhode Island | Partly, it asks pipe material | Only what they know, need not look | Only if you prove they knew |
| South Carolina | Partly, it asks pipe material | Only what they actually know | Weak |
| South Dakota | No, lead paint only | Best of their knowledge | Only if you prove they knew |
| Tennessee | No, lead paint only | Only what they know, need not look | Only if you prove they knew |
| Texas | No, it only asks the water source | Best of their knowledge | Only if you prove they knew |
| Utah | No, it only asks the water source | Only what they actually know | Only if you prove they knew |
| Vermont | Yes, it names lead plumbing | Court-made rules only | Only if you prove they knew |
| Virginia | No | Court-made rules only | Very weak |
| Washington | No, lead paint only | Only what they actually know | Weak |
| West Virginia | No state form | Court-made rules only | Only if you prove they knew |
| Wisconsin | Yes, it names lead plumbing | Best of their knowledge | Only if you prove they knew |
| Wyoming | No state form | Court-made rules only | Very weak |
Click any state in the picker above for the statute, the form question, and screenshots of both.
3
Ask in writing, and ask specifically
This is the highest-value thing in this guide. In a lot of states a seller has no duty to volunteer anything, but once you ask a direct question they cannot answer it falsely. A specific written question converts a weak position into a strong one, and it costs you nothing.
Send these to the seller through your agent, in writing
- Has the water utility sent you a notice about your service line material? Please provide a copy of every notice you have received since November 2024.This is the document that matters. Asking for it in writing puts the seller's answer on the record.
- What has the utility classified this property's service line as: lead, galvanized requiring replacement, non-lead, or unknown?Uses the utility's own four categories so the answer cannot be vague.
- Has the utility ever asked for permission to replace or inspect the service line, and did you or a prior owner refuse?If a prior owner refused access, the utility has to come back to you within six months of the sale and offer replacement again. Refusing access is also strong evidence the owner knew.
- What is the water service line from the street to the house made of, and how do you know?The "how do you know" is the part that matters.
- Has anyone replaced any portion of the service line, and do you have the permit or invoice?A partial replacement is worth knowing about. Disturbing a lead line can spike lead at the tap.
Keep the answers. If the seller answers falsely in writing, that is the case. If they answer honestly, you have what you needed and can price it or ask them to replace it.
Do not count on the home inspector
Standard home inspection practice does not cover the buried service line. The American Society of Home Inspectors standard covers interior water supply piping, and the buried line from the street is outside it. A clean inspection report is not evidence the line is not lead.
4
What the water utility owes you
Separate from anything the seller does. These obligations run to whoever owns the house.
An annual notice
If your line is lead, galvanized requiring replacement, or unknown, the utility has to notify you every year and explain the health effects and the steps you can take. If the line is classified lead or galvanized, the notice also has to tell you how to let the utility know you disagree with that classification.
A notice when you become the customer
New customers get the notice when service starts. If the previous owner refused a replacement, the utility has to come back to you with a replacement offer within six months of the sale, and try at least two ways of reaching you in the first year.
Replacement, on a schedule
Under the Lead and Copper Rule Improvements, systems generally have to replace lead and galvanized lines at a mandatory annual rate starting in November 2027, with a ten year horizon. This matters for what an undisclosed line is actually worth to you, because in most places the line is coming out anyway.
Ask who pays before you assume
Whether the utility covers the private-side portion varies by system, and the notice has to say if the utility intends you to pay part of it. Ask. Many programs replace the full line at no cost to the owner.
Sources: the lead service line notification requirements at 40 CFR 141.85, the inventory and public-accessibility requirements at 40 CFR 141.84, and EPA's Lead and Copper Rule Improvements.
5
If you already closed and nobody told you
Here is the honest version, because there is a lot of confident writing on this that overstates it.
You will read that a buyer who was not told about a lead line can recover the cost of replacing it. That is not a fair statement of the law in most states, for four reasons that stack.
- Knowledge. You have to show the seller actually knew. The utility letter is how you do it, and it is genuinely good evidence. Without it you usually have nothing, because "should have known" is not the standard almost anywhere.
- Whether it counts as a defect. Courts read "material defect" more narrowly than you would expect. In 2025 the Ohio Supreme Court held that a recorded sewer easement running through a lot was not a material defect the seller had to list, because the sewer line worked fine and was only inconvenient for what that particular buyer wanted to build. A lead line is a health hazard rather than an inconvenience, so the case does not decide the lead question. It does show how narrow the definition can get.
- What the disclosure law gives you. In a large group of states the disclosure statute's only remedy is the right to walk away before closing. After closing it is worth nothing, and you are back to proving common law fraud.
- How damages are measured. The usual measure is what the house is worth as delivered versus as promised, not the cost of the repair. And because the utility is already obligated to replace the line, what you actually lost may be timing and inconvenience rather than the full replacement price.
The reality check. As of September 2026 a thorough search turns up no reported case anywhere in the country of a buyer suing a seller over an undisclosed lead service line. Compare the federal lead paint disclosure rule, which has been on the books for thirty years, applies to every pre-1978 house, and carries triple damages: buyers still very rarely recover from sellers under it, mostly because it too only reaches what the seller actually knew.
None of that means do nothing. It means the leverage is before closing, not after. Look it up, ask in writing, and price it or get it replaced as a condition of sale.
Where these answers come from
Every state entry above links to that state's disclosure statute and, where the state publishes one, the actual disclosure form, with the operative language marked in the screenshot. Federal requirements are cited to the Code of Federal Regulations. The service line counts are EPA's national dashboard as of September 1, 2026.
This is a guide, not legal advice. Disclosure law is state specific and changes. Two states changed theirs in the last five years. If you are in a dispute, talk to a real estate lawyer in your state.