Ozaukee Water Quality Report
8 cities ranked · Average grade: B- · Wisconsin
Avg Score
71.6
Cities Ranked
8
Health Violations
7
PFAS Detected
3
71.6
County avg score
8
Cities ranked
63%
A or B grade
25%
D or F grade
7
Health violations
3
PFAS detected
Grade Distribution
How Ozaukee cities scored
A
2
25%
Excellent
B
3
38%
Good
C
1
13%
Fair
D
1
13%
Poor
F
1
13%
Failing
Comparison
County vs Wisconsin average
▼ 6.4 pts below state average
City Map
Water quality across Ozaukee
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Ozaukee
County context
1
Superfund site in Ozaukee
86.5%
of residents on fluoridated water (CDC, 2020)
175
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Ozaukee
Industrial polluters nearby
Facilities reporting the most surface-water releases in Ozaukee, 2023.
Total reported releases to surface water: 175 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
CHARTER STEEL-SAUKVILLE SAUKVILLE, WI53080 | Manganese compounds | 175 |
CEDAR VALLEY CHEESE BELGIUM, WI53004 | — | — |
CARLSON TOOL & MANUFACTURING CORP. CEDARBURG, WI53012 | — | — |
KEMPS LLC CEDARBURG, WI53012 | — | — |
PERFORMANCE HEALTH SUPPLY INC CEDARBURG, WI53012 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Ozaukee
Superfund sites nearby
Federally tracked hazardous-waste sites within Ozaukee on the EPA National Priorities List.
- AMCAST INDUSTRIAL CORPORATION
Source: EPA Superfund National Priorities List
Full Rankings
All 8 cities in Ozaukee
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Fredonia | A | 91.5 | 2K | 10 | Health Unresolved | |
| 2 | Belgium | A- | 87.8 | 2K | 28 | Health Unresolved | |
| 3 | Cedarburg | B+ | 82.3 | 12K | 68 | Health Unresolved | |
| 4 | Port Washington | B+ | 81.5 | 13K | 38 | Health Unresolved | |
| 5 | Saukville | B | 77.7 | 4K | 1 | PFAS Unresolved | |
| 6 | Grafton | C+ | 65.2 | 12K | 167 | Health Unresolved | |
| 7 | Thiensville | D | 47 | 1K | 676 | Health Unresolved | |
| 8 | Mequon | F | 40 | 17K | 437 | Health Unresolved |