Westmoreland County (MAWC) Lead Service Line Replacement Program
Mawc Sweeney Plant serves about 143,000 people and reported 2,408 lead and 272 galvanized service lines that must be replaced, out of 64,985 lines, in EPA's Q3 2026 inventory, plus 1,911 lines of unknown material. Here's who pays to replace yours, what it costs, and how to sign up.
Free in eight funded communities
The Municipal Authority of Westmoreland County dropped its planned $3,200 owner fee and now replaces lead service lines for free, while funds last, for owners in eight northern communities covered by its grants. Responsibility for the line from the curb stop into the home returns to the owner 30 days after installation. MAWC hopes to expand to other areas with new funding.
How to get it
- Call MAWC at 724-755-5800 to see if your address is in a funded community.
- Sign the service line replacement agreement.
- Sign up soon, since the offer lasts only while funds last.
Sources: mawc.org, cbsnews.com
Lead lines in Westmoreland County (MAWC)
The most recent 90th-percentile lead result EPA lists for this system is 3.5 parts per billion (2025-06 to 2025-09). Under the new federal rule, the action level drops to 10 ppb in 2027. Galvanized lines count if they ever sat downstream of a lead pipe, because they can hold lead particles. Unknown lines must be identified by the utility, and many turn out to be lead.
How Westmoreland County (MAWC) compares: it ranks #180 of 7,556 U.S. water systems and #9 of 399 in Pennsylvania for lead and galvanized lines. 4.1% of its service lines need replacing, compared with 3.3% across Pennsylvania. See the national ranking.
Source: EPA SDWIS Service Line Inventory, Q3 2026 · Utility phone: 724-755-5800 · PWSID PA5650032
Westmoreland County (MAWC) lead service line map: check your address
Every water utility had to publish an inventory of its service lines, and most offer an address lookup map. Start with Mawc Sweeney Plant's official lead program page, which links to its lookup or explains how to get your line checked. The status will be lead, galvanized requiring replacement, non-lead or unknown. If it's unknown, you can usually check the pipe yourself and send the utility a photo.
Communities and ZIP codes served
ZIP codes: 15035, 15085, 15148, 15601, 15613, 15615, 15619, 15623, 15624, 15626, 15629, 15632, 15633, 15634, 15635, 15636, 15641, 15644, 15647, 15656, 15662, 15665, 15668, 15673, 15675, 15680, 15681, 15684, 15692
Who pays in Pennsylvania?
Pennsylvania's Act 120 lets PUC-regulated water utilities replace customer-owned lead service lines and recover the cost through rates, and it prohibits partial replacement. The PUC's 2022 rules require utilities to file replacement programs; Aqua Pennsylvania's was approved in April 2025 for up to 1,500 customer lines a year. City systems such as Philadelphia and Pittsburgh set their own terms.
The law: Act 120 of 2018 (66 Pa.C.S. § 1311(b)) and 52 Pa. Code Chapter 65. Mandatory? No owner mandate statewide; utilities must replace full lines and partial replacement is prohibited. Funding: PENNVEST loans and grants; utility rate recovery approved by the PUC.
Sources: puc.pa.gov, puc.pa.gov
Nationwide, EPA's Lead and Copper Rule Improvements require most utilities to replace every lead and galvanized-requiring-replacement line by December 31, 2037, starting November 1, 2027. Utilities must mail a notice every year to each home with a lead, galvanized or unknown line. See the federal timeline.
What would you pay?
Many utility loans are 0% (enter 0). Private loans run higher. Your real price depends on how far the house sits from the street, digging versus trenchless methods, permits and restoration. This is an estimate, not a quote.
The calculator starts at 0% because Westmoreland County (MAWC)'s program is free only for eligible owners. If you qualify, set "Utility pays" to 100%.
Not covered, or can't wait?
Get up to 3 quotes from licensed plumbers who replace service lines in Westmoreland County (MAWC).
Common questions
Is lead service line replacement free in Westmoreland County (MAWC)?
Free if eligible. The Municipal Authority of Westmoreland County dropped its planned $3,200 owner fee and now replaces lead service lines for free, while funds last, for owners in eight northern communities covered by its grants.
Is lead service line replacement mandatory in Westmoreland County (MAWC)?
No owner mandate statewide; utilities must replace full lines and partial replacement is prohibited.
How much does it cost to replace a lead service line in Westmoreland County (MAWC)?
If you qualify for Westmoreland County (MAWC)'s program, the private side costs you nothing. Most private-side replacements cost about $4,000 to $10,000, and long or difficult lines can run higher. Price depends on the distance from the street to your house, whether the contractor digs a trench or pulls the new pipe through (trenchless), permits, and restoring your lawn, sidewalk or basement wall. That's what you'd pay if you replace it on your own or don't qualify.
How do I know if my home has a lead service line?
Look up your address on Mawc Sweeney Plant's service line inventory or check the letter it mailed you. You can also check the pipe where it enters your basement, usually near the meter: lead is dull gray, soft, and turns shiny silver when you scratch it with a key, and a magnet won't stick. Galvanized steel is gray too, but a magnet sticks to it. See our step-by-step guide.
What if I can't afford to replace my lead line?
Ask Mawc Sweeney Plant about income-based help first; federal money often makes replacement free for low-income owners. Other options are utility payment plans, 0% city loans, state revolving fund programs, property tax assessments and home improvement loans. Our guide on paying for replacement lists them.
Who owns the water service line?
In most U.S. cities the utility owns the pipe from the water main to the curb stop or property line, and the property owner owns the rest, into the house. Some utilities, including Minneapolis and many in St. Louis County, treat the whole line as the owner's. Federal rules now require utilities to replace the whole lead line, not just their part.
Other Pennsylvania programs
Philadelphia ✓Pittsburgh ✓Allentown ✓Altoona ✓Pittsburgh suburbs (PA American Water) ✓Montgomery County (Aqua PA) ✓Johnstown ✓Wilkinsburg & Penn Hills ✓Oil CityCumberland County (PA American Water) ✓
Something out of date? Report a change. We recheck program terms at least once a year.