Reeseville, WI · PWSID WI1140153
Reeseville Waterworks lead service lines
45 lead or galvanized lines to replace
Reeseville Waterworks reported 37 lead and 8 galvanized-requiring-replacement service lines out of 274 in its inventory. That's 16% of all its lines. Another 56 (20%) are still listed as unknown material.
Ranks #113 of 258 Wisconsin systems with confirmed lead lines, and #2,745 nationally.
16% of Reeseville Waterworks's service lines are lead or galvanized requiring replacement. That's higher than the Wisconsin average (11%) and higher than the national average (3.1%).
- Lead 14%
- Galvanized (replace) 2.9%
- Unknown 20%
- Non-lead 63%
Total service lines reported: 274. Reported all required service line types. Population served: 718; 265 connections.
Lead test results
Reeseville Waterworks's most recent 90th-percentile lead result (Jan 2024–Jun 2024) was 4.9 ppb, below both the 15 ppb action level and the 10 ppb level that takes effect in 2027. This means 90% of homes sampled were at or below that level; individual homes, especially those with lead lines, can be higher.
Lead and Copper Rule 90th-percentile results reported to EPA, in parts per billion. Dashed lines: 15 ppb action level and the 10 ppb level from November 1, 2027.
Progress since 2025 Q1
Reported lead and galvanized-requiring-replacement lines went from 47 in 2025 Q1 to 45 in 2026 Q3: down 2 (4.3%). Lines of unknown material went from 70 to 56, down 14 (20%).
Quarterly counts reported to EPA. A drop usually means lines were replaced or confirmed non-lead; a rise usually means more lines were identified. Replacement progress rankings.
Lead rule violations
EPA's data lists 2 Lead and Copper Rule violations since 2015, 1 health-based for Reeseville Waterworks. Health-based violations are treatment failures, such as corrosion control or public education; the rest are missed monitoring or reporting.
| Began | Violation | Status |
|---|---|---|
| Jan 2023 | Missed initial lead and copper tap sampling | Returned to compliance |
| Dec 2022 | Corrosion control study or recommendation not done health-based | Returned to compliance |
Source: EPA SDWIS violation records for the Lead and Copper Rule.
Where the water comes from
Reeseville Waterworks's main water source is groundwater (wells).
Source: EPA SDWIS water system and facility records.
Check your own address
These counts cover the whole system. To see whether your line is lead, use the utility's address-level inventory. Utilities had to prepare one by October 16, 2024 and make it publicly accessible; systems serving more than 50,000 people must post it online.
No map yet? Do the 2-minute scratch and magnet test on the pipe where water enters your home.
Protect your drinking water now
If your line is lead, galvanized or unknown, filter water for drinking, cooking and baby formula. Use a filter certified to NSF/ANSI 53 for lead. Run cold water for a few minutes after it sits for hours, and never use hot tap water for cooking.
How to pick a lead-certified filter · How to test your water for lead
Getting the line replaced
EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask Reeseville Waterworks whether it replaces the private side for free or with a cost share before you hire anyone. If you want it done sooner, or your utility doesn't cover your side, a licensed plumber can quote it. What replacement costs.
County pages: Lead pipes in Dodge County
Other water systems nearby
| System | Lead + galv. | Unknown |
|---|---|---|
| Beaver Dam Water Utility | 1,171 | 4 |
| Waupun Utilities | 388 | 213 |
| Waupun Correctional Inst | 19 | 0 |
| Horicon Waterworks | 42 | 20 |
| Lomira Waterworks | 5 | 104 |
| Juneau Waterworks | 1 | 1 |
| Iron Ridge Waterworks | 3 | 205 |
| Clyman Waterworks | 3 | 94 |
Check another water system
Questions
Does Reeseville Waterworks have lead pipes?
Yes. Reeseville Waterworks reported 37 lead service lines and 8 galvanized lines that must be replaced, out of 274 total. 56 more are of unknown material.
How do I check if my home's service line is lead?
Look up your address on Reeseville Waterworks's official service line inventory, which utilities must make publicly available. You can also scratch the pipe where it enters your home: lead is soft, dull gray, scratches to shiny silver and does not attract a magnet.
When will Reeseville Waterworks replace lead service lines?
Under EPA's Lead and Copper Rule Improvements, most systems must replace lead and galvanized-requiring-replacement lines by December 31, 2037, starting from November 1, 2027. The rule is being challenged in court, so dates could change. Many utilities run free or cost-share programs now.
Has Reeseville Waterworks had lead violations?
EPA's data shows 2 Lead and Copper Rule violations since 2015, 1 health-based for Reeseville Waterworks.
Which water filters remove lead?
Use a filter certified to NSF/ANSI Standard 53 for lead reduction, or NSF/ANSI 58 for reverse osmosis. Check the certification on NSF's listings, not just the box.
Embed or cite this data
Local news sites, blogs and community groups can embed this card. It updates when EPA releases new data.
Citation: Lead Pipe Map, "Reeseville Waterworks lead service lines," https://leadpipemap.com/wi/reeseville-waterworks/. Source: EPA SDWIS service line inventory, 2026 Q3. Download the full dataset on the data page.