Green Lake Water Quality Report
4 cities ranked · Average grade: B+ · Wisconsin
Avg Score
83.1
Cities Ranked
4
Health Violations
3
PFAS Detected
0
83.1
County avg score
4
Cities ranked
100%
A or B grade
0%
D or F grade
3
Health violations
0
PFAS detected
Grade Distribution
How Green Lake cities scored
A
1
25%
Excellent
B
3
75%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Wisconsin average
▲ 5.1 pts above state average
City Map
Water quality across Green Lake
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Green Lake
Best cities
Worst cities
County context
0.0%
of residents on fluoridated water (CDC, 2020)
0
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Green Lake
Industrial polluters nearby
Facilities reporting the most surface-water releases in Green Lake, 2023.
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
SIGMA ENGINEERED SOLUTIONS MARKESAN, WI53946 | — | — |
DARLING INGREDIENTS INC BERLIN, WI54923 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 4 cities in Green Lake
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Berlin | A | 94.2 | 6K | 33 | Health Unresolved | |
| 2 | Markesan | B+ | 82.7 | 1K | 1 | Unresolved | |
| 3 | Princeton | B+ | 81.1 | 1K | 29 | Health Unresolved | |
| 4 | Green Lake | B- | 74.5 | 1K | 38 | Health Unresolved |