Winona Water Quality Report
6 cities ranked · Average grade: A · Minnesota
Avg Score
92.4
Cities Ranked
6
Health Violations
4
PFAS Detected
1
92.4
County avg score
6
Cities ranked
100%
A or B grade
0%
D or F grade
4
Health violations
1
PFAS detected
Grade Distribution
How Winona cities scored
A
6
100%
Excellent
B
0
0%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Minnesota average
▲ 4.9 pts above state average
City Map
Water quality across Winona
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Winona
Worst cities
County context
99.3%
of residents on fluoridated water (CDC, 2020)
270
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Winona
Industrial polluters nearby
Facilities reporting the most surface-water releases in Winona, 2023.
Total reported releases to surface water: 270 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
MILLER WASTE MILLS (DBA RTP CO.) WINONA, MN55987 | Antimony compounds | 265 |
MILLER WASTE MILLS DBA RTP CO WINONA, MN55987 | Antimony compounds | 5 |
RIVERSIDE ELECTRONICS LTD LEWISTON, MN55952 | — | — |
BADGER FOUNDRY CO WINONA, MN55987 | — | — |
BENCHMARK WINONA, MN55987 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 6 cities in Winona
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Rollingstone | A+ | 96.5 | 664 | 1 | Health | |
| 2 | St. Charles | A | 92.7 | 4K | 2 | Unresolved | |
| 3 | Lewiston | A | 92.7 | 2K | 17 | Health Unresolved | |
| 4 | Altura | A | 91.3 | 553 | 5 | Unresolved | |
| 5 | Stockton | A | 91.1 | 697 | 3 | Health Unresolved | |
| 6 | Winona | A | 90 | 32K | 25 | Health Unresolved |