Is Menomonee Falls, WI tap water safe?
Data: U.S. EPA · How we read the data · How we check it
Summary
No federal limits exceeded in EPA data for Menomonee Falls Water Works – Surface Water.
2 public water systems serve parts of Menomonee Falls. The largest, Menomonee Falls Water Works – Surface Water, serves 23,867 people. Your water bill names your system.
Largest system
Menomonee Falls Water Works – Surface Water
23,867 people · Purchased surface water · EPA ID WI2680082
Buys treated water from Milwaukee Waterworks.
| PFAS | Highest average | Limit |
|---|---|---|
| PFOA Not detected | – | 4 ppt |
| PFOS Not detected | – | 4 ppt |
| PFHxS Not detected | – | 10 ppt |
| PFNA Not detected | – | 10 ppt |
| HFPO-DA (GenX) Not detected | – | 10 ppt |
ppt = parts per trillion. "Highest average" is the highest average at any of the system's entry points, the way EPA compares results with the limits.
Lead: 2.1 ppb at the 90th percentile (Sep 2023, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 1
Across Wisconsin, 18 of 196 water systems EPA tested had PFAS above a 2024 federal limit, and 4 systems were above the lead action level in results from the last five years. Wisconsin results.
Menomonee Falls homes and lead pipes
Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. How to check your own line.
Housing: Census American Community Survey 2020–2024 5-year estimates for Menomonee Falls village (tables B25034, B25003). Estimates for small places have a margin of error.
Other water systems serving Menomonee Falls
- Menomonee Falls Water Works – Groundwater1,796 people · Groundwater · Wisconsin · lists this cityNot in EPA's PFAS sample
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| Mequon 6 mi Mequon Water Utility | None above limits | 0.52 ppb |
| Brookfield 7 mi Brookfield Water Utility | None above limits | 1.5 ppb |
| Wauwatosa 8 mi Wauwatosa Waterworks | None above limits | 8.4 ppb |
| Milwaukee 10 mi Milwaukee Waterworks | None above limits | 5.3 ppb |
| West Allis 11 mi West Allis Waterworks | None above limits | 2.4 ppb |
| Waukesha 12 mi Waukesha Water Utility | None above limits | 0.56 ppb |
Menomonee Falls ZIP codes (1)
- 53051
Questions
Is Menomonee Falls tap water safe to drink?
Menomonee Falls Water Works – Surface Water had 1 health-based violation since 2016. Utility data can't show lead from your own pipes: if your home was built before 1986, test your tap. Your utility's annual Consumer Confidence Report is the official summary.
Who supplies water in Menomonee Falls, WI?
2 public water systems serve parts of Menomonee Falls. The largest is Menomonee Falls Water Works – Surface Water (23,867 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.
Does Menomonee Falls tap water have PFAS?
None detected above EPA's reporting limits. Menomonee Falls Water Works – Surface Water had no PFAS detected in EPA's 2023–2025 testing. "Not detected" means below the reporting limit (about 2 to 20 ppt), not proven zero.
Do Menomonee Falls homes have lead pipes?
Census estimates put 50% of Menomonee Falls homes as built before 1980 (Wisconsin: 57%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. Menomonee Falls Water Works – Surface Water's service line inventory says what your line is made of. The only way to know for your home is to check the line where it enters the house and test your tap.
Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.