Winneshiek Water Quality Report
3 cities ranked · Average grade: A- · Iowa
Avg Score
87.3
Cities Ranked
3
Health Violations
2
PFAS Detected
1
87.3
County avg score
3
Cities ranked
100%
A or B grade
0%
D or F grade
2
Health violations
1
PFAS detected
Grade Distribution
How Winneshiek cities scored
A
2
67%
Excellent
B
1
33%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Iowa average
▼ 0.2 pts below state average
City Map
Water quality across Winneshiek
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Winneshiek
Best cities
Worst cities
County context
79.5%
of residents on fluoridated water (CDC, 2020)
6
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Winneshiek
Industrial polluters nearby
Facilities reporting the most surface-water releases in Winneshiek, 2023.
Total reported releases to surface water: 6 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
INFASTECH-DECORAH LLC DECORAH, IA52101 | Manganese | 6 |
GEMINI-DECORAH DECORAH, IA52101 | — | — |
ROCKWELL COLLINS - DECORAH OPERATIONS DECORAH, IA52101 | — | — |
IOWA ROTOCAST PLASTICS INC DECORAH, IA52101 | — | — |
DECO PRODUCTS CO DECORAH, IA52101 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings