Waukesha Water Quality Report
17 cities ranked · Average grade: C · Wisconsin
Avg Score
63.8
Cities Ranked
17
Health Violations
16
PFAS Detected
4
63.8
County avg score
17
Cities ranked
41%
A or B grade
41%
D or F grade
16
Health violations
4
PFAS detected
Grade Distribution
How Waukesha cities scored
A
1
6%
Excellent
B
6
35%
Good
C
3
18%
Fair
D
5
29%
Poor
F
2
12%
Failing
Comparison
County vs Wisconsin average
▼ 14.2 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 17 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 | 10K | 38 | Health PFAS Unresolved | |
| 6 | New Berlin | B | 79 | 28K | 274 | Health Unresolved | |
| 7 | Oconomowoc | B | 76.3 | 17K | 66 | Health Unresolved | |
| 8 | Wales | C+ | 68.8 | 624 | 226 | Health Unresolved | |
| 9 | Dousman | C | 62.4 | 3K | 74 | Health Unresolved | |
| 10 | Brookfield | C- | 56.6 | 35K | 232 | Health Unresolved | |
| 11 | Sussex | D+ | 53.2 | 12K | 323 | Health Unresolved | |
| 12 | Mukwonago | D | 48.5 | 8K | 380 | Health Unresolved | |
| 13 | Waukesha | D | 47.1 | 71K | 393 | Health Unresolved | |
| 14 | Delafield | D | 47 | 2K | 281 | Health Unresolved | |
| 15 | Muskego | D | 46.5 | 11K | 408 | Health Unresolved | |
| 16 | Elm Grove | F | 43 | 1K | 294 | Health Unresolved | |
| 17 | Pewaukee | F | 40.2 | 17K | 256 | Health PFAS Unresolved |