63.5
County avg score
16
Cities ranked
44%
A or B grade
44%
D or F grade
15
Health violations
4
PFAS detected
Grade Distribution
How Waukesha cities scored
A
1
6%
Excellent
B
6
38%
Good
C
2
13%
Fair
D
5
31%
Poor
F
2
13%
Failing
Comparison
County vs Wisconsin average
▼ 14.7 pts below state average
City Map
Water quality across Waukesha
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Waukesha
County context
4
Superfund sites in Waukesha
81.8%
of residents on fluoridated water (CDC, 2020)
89
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Waukesha
Industrial polluters nearby
Facilities reporting the most surface-water releases in Waukesha, 2023.
Total reported releases to surface water: 89 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
METALTEK INTERNATIONAL-WISCO NSIN CENTRIFUGAL DIV WAUKESHA, WI53188 | Copper | 64 |
NORTHERN STAINLESS CORP PEWAUKEE, WI53072 | Copper | 15 |
WAUKESHA FOUNDRY INC WAUKESHA, WI53186 | Copper compounds | 9 |
CASTALLOY INC. WAUKESHA, WI53189 | Manganese | 1 |
CHEMSTATION OF WISCONSIN BUTLER, WI53007 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Waukesha
Superfund sites nearby
Federally tracked hazardous-waste sites within Waukesha on the EPA National Priorities List.
- LAUER I SANITARY LANDFILL
- MASTER DISPOSAL SERVICE LANDFILL
- MUSKEGO SANITARY LANDFILL
- WASTE MANAGEMENT OF WISCONSIN INC BROOKFIELD SANITARY LANDFILL
Source: EPA Superfund National Priorities List
Full Rankings
All 16 cities in Waukesha
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Butler | A- | 87.9 | 2K | 24 | Unresolved | |
| 2 | Menomonee Falls | B+ | 84.2 | 26K | 176 | Health Unresolved | |
| 3 | North Prairie | B+ | 84 | 2K | 83 | Health Unresolved | |
| 4 | Eagle | B+ | 80.3 | 2K | 78 | Health Unresolved | |
| 5 | Hartland | B | 79.5 | 9K | 38 | Health PFAS Unresolved | |
| 6 | New Berlin | B | 79 | 28K | 274 | Health Unresolved | |
| 7 | Oconomowoc | B | 76.3 | 16K | 66 | Health Unresolved | |
| 8 | Dousman | C | 62.4 | 3K | 74 | Health Unresolved | |
| 9 | Brookfield | C- | 56.6 | 35K | 232 | Health Unresolved | |
| 10 | Sussex | D+ | 53.2 | 12K | 323 | Health Unresolved | |
| 11 | Mukwonago | D | 48.5 | 8K | 380 | Health Unresolved | |
| 12 | Waukesha | D | 47.1 | 71K | 393 | Health Unresolved | |
| 13 | Delafield | D | 47 | 1K | 281 | Health Unresolved | |
| 14 | Muskego | D | 46.5 | 10K | 408 | Health Unresolved | |
| 15 | Elm Grove | F | 43 | 810 | 294 | Health Unresolved | |
| 16 | Pewaukee | F | 40.2 | 17K | 256 | Health PFAS Unresolved |