Dane Water Quality Report
22 cities ranked · Average grade: B+ · Wisconsin
Avg Score
81.3
Cities Ranked
22
Health Violations
21
PFAS Detected
6
81.3
County avg score
22
Cities ranked
86%
A or B grade
9%
D or F grade
21
Health violations
6
PFAS detected
Grade Distribution
How Dane cities scored
A
12
55%
Excellent
B
7
32%
Good
C
1
5%
Fair
D
1
5%
Poor
F
1
5%
Failing
Comparison
County vs Wisconsin average
▲ 3.3 pts above state average
City Map
Water quality across Dane
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Dane
Best cities
Worst cities
County context
5
Superfund sites in Dane
98.8%
of residents on fluoridated water (CDC, 2020)
9
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Dane
Industrial polluters nearby
Facilities reporting the most surface-water releases in Dane, 2023.
Total reported releases to surface water: 9 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
MGE WEST CAMPUS COGENERATION FACILITY MADISON, WI53726 | Ammonia | 9 |
FLINT HILLS RESOURCES PINE BEND LLC MCFARLAND TERMINAL MC FARLAND, WI53558 | Polycyclic aromatic compounds | 0 |
FEDERAL INDUSTRIES BELLEVILLE, WI53508 | — | — |
HYDRITE CHEMICAL CO. COTTAGE GROVE, WI53527 | — | — |
MPI ENGINEERED TECHNOLOGIES LLC DEERFIELD, WI53531 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Dane
Superfund sites nearby
Federally tracked hazardous-waste sites within Dane on the EPA National Priorities List.
- CITY DISPOSAL CORP LANDFILL
- HAGEN FARM
- MADISON METROPOLITAN SEWERAGE DISTRICT LAGOONS
- REFUSE HIDEAWAY LANDFILL
- STOUGHTON CITY LANDFILL
Source: EPA Superfund National Priorities List
Full Rankings
All 22 cities in Dane
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Mc Farland | A+ | 95.8 | 10K | 8 | Health Unresolved | |
| 2 | Monona | A | 93.4 | 9K | 5 | Health Unresolved | |
| 3 | Mount Horeb | A | 92.2 | 8K | 47 | Health Unresolved | |
| 4 | Dane | A | 91.7 | 1K | 11 | Health Unresolved | |
| 5 | Marshall | A | 91.4 | 4K | 13 | Health Unresolved | |
| 6 | Fitchburg | A | 90.3 | 25K | 34 | Unresolved | |
| 7 | Sun Prairie | A | 90.1 | 34K | 29 | Health Unresolved | |
| 8 | Windsor | A- | 89.5 | 5K | 4 | Health Unresolved | |
| 9 | Cross Plains | A- | 87 | 4K | 6 | Health Unresolved | |
| 10 | Blue Mounds | A- | 86.8 | 950 | 9 | Health Unresolved | |
| 11 | Cottage Grove | A- | 85.9 | 9K | 7 | Health Unresolved | |
| 12 | Black Earth | A- | 85.3 | 1K | 12 | Health Unresolved | |
| 13 | Deforest | B+ | 84.6 | 11K | 7 | Health Unresolved | |
| 14 | Verona | B+ | 84.3 | 14K | 10 | Health Unresolved | |
| 15 | Stoughton | B+ | 82.5 | 14K | 20 | Health Unresolved | |
| 16 | Mazomanie | B+ | 80.6 | 2K | 20 | Health Unresolved | |
| 17 | Deerfield | B | 77.5 | 3K | 37 | Health Unresolved | |
| 18 | Cambridge | B | 76.3 | 2K | 74 | Health Unresolved | |
| 19 | Waunakee | B- | 70.1 | 16K | 109 | Health Unresolved | |
| 20 | Middleton | C+ | 67 | 24K | 33 | Health Unresolved | |
| 21 | Oregon | D+ | 50.5 | 12K | 67 | Health Unresolved | |
| 22 | Madison | F | 35.4 | 279K | 244 | Health Unresolved |