Is Caledonia, 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 Village of Caledonia Water Utility.
Village of Caledonia Water Utility supplies Caledonia (21,819 people).
Water system
Village of Caledonia Water Utility
21,819 people · Purchased surface water · EPA ID WI2520184
Buys treated water from Racine Waterworks, Oak Creek 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: 3.3 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.
Caledonia 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 Caledonia village (tables B25034, B25003). Estimates for small places have a margin of error.
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| Oak Creek 6 mi Oak Creek Waterworks | None above limits | 2 ppb |
| Racine 6 mi Racine Waterworks | None above limits | 3.3 ppb |
| Franklin 9 mi Franklin Water Utility | None above limits | 3 ppb |
| Muskego 14 mi Muskego Water Utility | None above limits | 3.89 ppb |
| Kenosha 15 mi Kenosha Water Utility | None above limits | 4.1 ppb |
| West Allis 16 mi West Allis Waterworks | None above limits | 2.4 ppb |
Caledonia ZIP codes (4)
- 53108
- 53126
- 53402
- 53404
Questions
Is Caledonia tap water safe to drink?
Village of Caledonia Water Utility 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 Caledonia, WI?
Village of Caledonia Water Utility, which serves 21,819 people.
Does Caledonia tap water have PFAS?
None detected above EPA's reporting limits. Village of Caledonia Water Utility 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 Caledonia homes have lead pipes?
Census estimates put 56% of Caledonia 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. Village of Caledonia Water Utility'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.