Status note: EPA’s Lead and Copper Rule Improvements (LCRI) are being challenged in AWWA v. EPA in the D.C. Circuit, which heard argument on September 30, 2026. As of this writing, no decision has been reported, and EPA has said it will defend the rule. The dates below are the rule as written. Check for a ruling before you plan around them.
Quick answer
Starting November 1, 2027, most U.S. water systems must begin replacing every lead and galvanized-requiring-replacement service line in their system, generally within 10 years, by December 31, 2037. That’s millions of lines, and a lot of it is plumbing work: the customer side of the line, the connection inside the house, and the permits and restoration that come with it.
- Full replacement only. Partial replacements are limited to emergencies and planned capital projects and don’t count toward a utility’s replacement rate.
- The utility runs the program, but must offer to hire the contractor and coordinate customer-side work. That’s where plumbers come in.
- Lead action level drops from 15 ppb to 10 ppb on November 1, 2027.
- Federally funded jobs carry Davis-Bacon prevailing wage and Build America, Buy America requirements.
- EPA’s average cost estimate is $4,700 per full replacement, with a range of $1,200 to $12,300.
On this page
Lead service line replacement is the biggest steady stream of residential water-line work coming to the plumbing trade in a generation. EPA estimated in late 2025 that about 4 million lead lines remain. The federal rule that forces their removal starts its clock on November 1, 2027, and utilities are already building inventories and lining up contractors. Here’s what the rule requires, where plumbing contractors fit, and what it takes to get the work.
The LCRI timeline
| Date | Requirement |
|---|---|
| October 16, 2024 | Initial service line inventories due (under the earlier 2021 rule) |
| Each November, 2025–2027 | Annual notices to customers with lead, galvanized-requiring-replacement, or unknown lines |
| November 1, 2027 | LCRI compliance date: baseline inventory, replacement plan, and school and child care lists due; lead action level drops to 10 ppb; 10-year replacement clock starts |
| End of 2034 | Non-lead validation of unknown lines |
| December 31, 2037 | End of the standard 10-year replacement period for most systems |
Sources: EPA LCRI documents as compiled by LeadPipeHelp and CDM Smith’s LCRI FAQ. Some systems may qualify for deferred deadlines under the rule.
The rules that shape the work
Full replacement, not partial
The LCRI limits partial replacements, where only the utility side or only the customer side is replaced, to emergency repairs and planned capital improvement projects. Partials can’t be part of a replacement program, don’t count toward the required replacement rate, and leave the line classified as lead. When a partial happens in an emergency, the utility has to offer to replace the customer side within 45 days, and provide flushing instructions, six months of filters, and follow-up sampling.
For plumbers, that means most program work is full-line: main to meter to house, including the customer side that has historically been the homeowner’s problem.
Customer consent and cost
- The utility must make four attempts to get the customer’s consent. If the customer refuses or access is legally blocked, both sides are left alone. A change of ownership restarts the offers.
- The federal rule doesn’t require the utility to pay for the customer side if grants or loans don’t cover it; it can charge the customer. But it must offer to hire the contractor and coordinate the work rather than leaving the homeowner to figure it out. Some states go further and bar charging homeowners.
Connectors and galvanized lines
- Lead connectors (goosenecks) of 3 feet or less must be inventoried and replaced when encountered during work. Longer lead goosenecks are treated as lead service lines.
- Galvanized lines that are or were downstream of lead are classified as galvanized requiring replacement and must be replaced too.
Where plumbers fit
| Path | What the work looks like | What it takes |
|---|---|---|
| Utility prime contracts | Batches of hundreds of addresses, full-line replacement, restoration | Public bidding, bid, performance, and payment bonds, excavation crews, right-of-way permits |
| Subcontracting to a prime | Customer-side and in-house connections for a large general or utility contractor | State plumbing license, insurance, certified payroll, capacity to run several crews |
| Homeowner-paid customer side | Homeowners replacing their side where the utility won’t pay, or getting ahead of the program | Plumbing license, permit, coordination with the utility on timing |
| Inspection and identification | Verifying material at the meter and where the line enters the house | Training on identification methods; some utilities hire plumbers for verification |
Source: VendBuddy’s guide to lead service line replacement contracting.
The interior connection is often the part utilities and excavation contractors least want to do: getting through the foundation wall, setting a new meter or valve, and tying into existing plumbing that may itself be galvanized or old. That’s plumbing work, and it’s where licensed shops have the edge.
Funding, prevailing wage, and BABA
- Federal money: the Bipartisan Infrastructure Law provided $15 billion for lead service line replacement through the Drinking Water State Revolving Fund for fiscal years 2022 through 2026. EPA announced $2.9 billion more for states in May 2026, described as the final year of that supplemental funding.
- The gap: EPA has estimated full replacement nationwide at about $45 billion, so after 2026, more of the work will be funded by regular appropriations, local water rates, and bonds.
- Davis-Bacon: State Revolving Fund projects carry federal prevailing wage and certified payroll requirements. If you’ve never done certified payroll, learn it before you bid.
- Build America, Buy America: SRF projects carry domestic sourcing requirements for iron, steel, and manufactured products. Know where your copper, fittings, and meter setters come from.
States with their own deadlines
Several states moved before the federal rule and set their own timelines, which can be faster. Michigan’s 2018 rule requires replacement of lead lines over roughly 20 years; New Jersey’s 2021 law requires replacement within about 10 years; Illinois’s Lead Service Line Replacement and Notification Act sets timelines that scale with the number of lead lines a system has, with Chicago on the longest schedule. Check your state drinking water program for exact dates, cost-sharing rules, and whether homeowners can be charged.
Field work: identification, replacement, and safety
Identifying the line
Many utility records are wrong or incomplete. Field identification usually means checking the line at the meter and where it enters the building, and potholing to confirm material. Signs a plumber already knows: lead is dull gray, soft enough to scratch to a shiny silver with a key, and doesn’t attract a magnet. Galvanized steel is magnetic; copper scratches to a penny color.
Replacement methods
- Open trench from main to house, where restoration is simple.
- Pits at each end with pulling or boring between them, to save driveways, sidewalks, and landscaping.
- New line typically copper or approved plastic, per local code and the utility’s specs.
- Document material found, material installed, and photos for the utility’s inventory. The utility needs those records to show progress.
Safety
- Trenching: OSHA requires a protective system for trenches 5 feet deep or more unless the excavation is in stable rock. Trenching is one of the most-cited construction hazards. See OSHA’s top 10 violations.
- Lead exposure: cutting, sawing, or torching lead pipe creates exposure. OSHA’s construction lead standard can require exposure assessment, protective equipment, and hygiene practices.
- Utility locates: call 811 before every dig.
- Workers’ comp: excavation work may carry a different class code than service plumbing. Tell your agent before you start. See workers’ comp class codes.
Homeowners who call you first
As utilities send annual notices, homeowners will call plumbers asking whether their line is lead and whether they should replace it now. A good answer:
- Check the utility’s public inventory; many are searchable by address.
- Look at the line where it enters the house, and offer an inspection if it’s unclear.
- Ask the utility whether a program will cover the customer side, and when. A homeowner who pays now may lose out on a free replacement later.
- If they replace now, coordinate with the utility so the utility side is done at the same time. A customer-side-only job is a partial.
- For immediate concerns, point them to the utility’s guidance on flushing and filters certified for lead reduction.
How to get ready
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