Lead Service Lines in Waukesha, Wisconsin
What you need to know
Waukesha Water Utility serves about 70,718 people in the Waukesha area. The utility draws water from surface sources (lakes and rivers), which is generally lower-risk for lead than groundwater systems, but lead can still enter your home through service lines—the pipes connecting the street main to your house.
Current inventory status
As of now, Waukesha Water Utility has not yet completed a full lead service line inventory. This means the utility does not yet have a public count of how many lead, galvanized, or unknown service lines exist in the system. Inventories are a federal requirement under the Lead and Copper Rule, and utilities are working toward deadlines set by the EPA.
Without a finished inventory, the utility may not yet have a detailed replacement plan in place. However, this doesn't mean there's no action happening—many utilities are actively surveying their systems and developing strategies.
What this means for your home
You won't know if your service line contains lead until the utility completes its inventory—or until you get your own water tested. If your home was built before 1986, there's a higher chance your line is lead or galvanized steel (which can leach lead over time). Homes built after 1986 are less likely to have lead lines, though it's still possible.
Testing your water is a straightforward way to know your situation. You can request a free or low-cost test through your water utility, or use a certified private lab.
Next steps for residents
- Contact Waukesha Water Utility directly to ask about their lead service line inventory progress and whether a replacement program is planned.
- Test your water if you're concerned, especially if you have young children or are pregnant. Contact the utility for testing options.
- Know your home's age: If built before 1986, assume higher risk and take precautions (flush lines before drinking, use a filter if recommended).
- Check the EPA's Lead and Copper Rule page for more information on federal requirements and timelines.
Key figures
| Total inventoried lines | 0 |
|---|---|
| BIL/IIJA funding received | — |
| Replacement plan status | Not reported |
| Utility's LCRR inventory | Not provided |
Frequently asked
Does Waukesha Water Utility have lead in the water?
The utility hasn't yet published a complete inventory of lead service lines in the system. Lead enters homes through old service line pipes, not typically from the treatment plant itself. Testing your water is the clearest way to know if lead is present in your home.
How do I know if my house has a lead service line?
Homes built before 1986 are at higher risk. You can ask your utility about their inventory data once available, hire a plumber to inspect your line, or have your water tested. Waukesha Water Utility may also be able to tell you what material your service line is made of.
Is it safe to drink tap water in Waukesha?
Waukesha treats its water to federal standards, but lead risk depends on your home's service line and internal plumbing. If you're concerned, have your water tested and consider using a filter certified for lead removal while you investigate your line.
When will Waukesha replace lead service lines?
The utility must develop a replacement plan under federal law, but no timeline has been publicly released yet. Contact Waukesha Water Utility directly to ask about their progress and any programs available to help with replacement costs.