Wausau Lead Service Line Replacement Program
Wausau Waterworks serves about 39,994 people and reported 3,518 lead and 62 galvanized service lines that must be replaced, out of 14,318 lines, in EPA's Q3 2026 inventory, plus 4,377 lines of unknown material. Here's who pays to replace yours, what it costs, and how to sign up.
No up-front cost to owners
Wausau has replaced private-side lead service lines at no out-of-pocket cost since 2024, using about $18.9 million in DNR principal forgiveness plus loans. In September 2026 the finance committee voted to keep the program free to property owners even as grant money runs low. The city has paid under $7,000 per line, below the 2026 state average bid of $9,920. Wausau has no mandatory replacement ordinance.
How to get it
- Check your address with Wausau Water Works.
- Sign up for replacement while the no-cost program continues.
- Watch for council changes, since future funding may shift costs.
Sources: wsau.com, wausaupilotandreview.com
Lead lines in Wausau
The most recent 90th-percentile lead result EPA lists for this system is 5.8 parts per billion (2020-07 to 2020-10). 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 Wausau compares: it ranks #143 of 7,556 U.S. water systems and #8 of 258 in Wisconsin for lead and galvanized lines. 25.0% of its service lines need replacing, compared with 16.1% across Wisconsin. See the national ranking.
Source: EPA SDWIS Service Line Inventory, Q3 2026 · PWSID WI7370102
Wausau 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 Wausau Waterworks'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.
Who pays in Wisconsin?
Wisconsin lets each utility decide. Under a 2017 law, utilities can offer grants or loans to owners for the private side with Public Service Commission approval. The DNR gives municipalities principal forgiveness (money that does not have to be repaid) for private-side work, and since July 2025 state law also allows forgiving loans for lead line projects. Homeowners cannot apply to the DNR directly; the money flows through the city.
The law: Wis. Stat. 196.372 (2017 Act 137). Mandatory? No statewide mandate, but some cities, including Appleton and Milwaukee, require replacement by local ordinance. Funding: Wisconsin DNR Safe Drinking Water Loan Program, lead service line principal forgiveness.
Sources: dnr.wisconsin.gov, codes.findlaw.com
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.
Not covered, or can't wait?
Get up to 3 quotes from licensed plumbers who replace service lines in Wausau.
Common questions
Is lead service line replacement free in Wausau?
Free. Wausau has replaced private-side lead service lines at no out-of-pocket cost since 2024, using about $18.9 million in DNR principal forgiveness plus loans.
Is lead service line replacement mandatory in Wausau?
No statewide mandate, but some cities, including Appleton and Milwaukee, require replacement by local ordinance.
How much does it cost to replace a lead service line in Wausau?
If you qualify for Wausau'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 Wausau Waterworks'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 Wausau Waterworks 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 Wisconsin programs
Milwaukee ✓Racine ✓Wauwatosa ✓West Allis ✓Oshkosh ✓Sheboygan ✓Superior ✓Beloit ✓Neenah ✓Fond Du Lac ✓
Something out of date? Report a change. We recheck program terms at least once a year.