Hamilton Water Quality Report
3 cities ranked · Average grade: A- · Iowa
Avg Score
85.2
Cities Ranked
3
Health Violations
2
PFAS Detected
1
85.2
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 Hamilton 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
▼ 2.3 pts below state average
City Map
Water quality across Hamilton
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Hamilton
Best cities
Worst cities
County context
95.4%
of residents on fluoridated water (CDC, 2020)
72
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Hamilton
Industrial polluters nearby
Facilities reporting the most surface-water releases in Hamilton, 2023.
Total reported releases to surface water: 72 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
VAN DIEST SUPPLY CO WEBSTER CITY, IA50595 | Ammonia | 72 |
POET BIOREFINING JEWELL, IA50130 | — | — |
AGROLIQUID - WILLIAMS WILLIAMS, IA50271 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 3 cities in Hamilton
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Webster City | A | 90 | 8K | 8 | Health Unresolved | |
| 2 | Ellsworth | A- | 86.3 | 514 | 14 | Health Unresolved | |
| 3 | Jewell | B | 79.2 | 1K | 4 | Unresolved |