Wisconsin · population 2,757
Lead pipes in Walworth, WI
441 lead or galvanized lines to replace
Most of Walworth (population 2,757) gets its water from Walworth Waterworks. That system reported 441 lead and 0 galvanized-requiring-replacement service lines out of 1,084, with 0 more of unknown material.
41% of Walworth Waterworks's service lines are lead or galvanized requiring replacement, higher than the Wisconsin average (11%) and higher than the national average (3.1%).
- Lead 41%
- Galvanized (replace) 0%
- Unknown 0%
- Non-lead 59%
Latest lead test for Walworth Waterworks (Jun 2025–Sep 2025): 6.3 ppb at the 90th percentile, against a 15 ppb federal action level. Full test history.
Compliance record: EPA lists 2 Lead and Copper Rule violations since 2015 for Walworth Waterworks.
Water systems serving Walworth
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Walworth WaterworksMain system | 441 | 0 | 0 | 41% |
| Inspiration Ministries & Meadows AptsAlso serves parts of the city | 0 | 0 | 8 | 0% |
| Fontana Water UtilityServes nearby areas | 0 | 0 | 1,085 | 0% |
Matched from EPA water system service area boundaries and the cities each system reports serving. Edges of the city may be served by a neighboring system; your water bill names your utility.
Check your address in Walworth
The counts above cover the whole water system. To see whether your line is lead, look up your address on Walworth Waterworks's official inventory. Utilities had to make these public by October 16, 2024.
No map yet? Do the 2-minute scratch and magnet test.
Protect your drinking water
If your line is lead, galvanized or unknown, use a filter certified to NSF/ANSI 53 for lead for drinking, cooking and baby formula, and use only cold water.
Choosing a lead-certified filter · Testing your water · Replacement cost
Nearby cities
- Fontana-on-Geneva Lake1,085 unknown
- Williams Bay7 lead + galv. lines
- Delavan626 lead + galv. lines
- Lake Geneva424 lead + galv. lines
- Bloomfieldno lead reported
- Genoa199 lead + galv. lines
- Clinton11 lead + galv. lines
- Twin Lakes122 unknown
Check another water system
Questions
Does Walworth, WI have lead pipes?
Yes. Walworth Waterworks, which serves Walworth, reported 441 lead and 0 galvanized-requiring-replacement service lines, plus 0 of unknown material.
Who supplies water to Walworth?
EPA's service area maps place most of Walworth in Walworth Waterworks's service area (PWSID WI2650149). Inspiration Ministries & Meadows Apts, Fontana Water Utility also serve parts of the city or nearby areas.
How do I check whether my Walworth home has a lead service line?
Search your address on Walworth Waterworks's service line inventory map. You can also scratch the pipe where water enters your home: lead is soft, dull gray, scratches to shiny silver and doesn't attract a magnet.
When will lead pipes in Walworth be replaced?
EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask Walworth Waterworks whether your street is scheduled and whether it covers the private side.