Calhoun Water Quality Report
4 cities ranked · Average grade: A- · Iowa
Avg Score
86.3
Cities Ranked
4
Health Violations
3
PFAS Detected
0
86.3
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 Calhoun cities scored
A
3
75%
Excellent
B
1
25%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Iowa average
▼ 1.2 pts below state average
City Map
Water quality across Calhoun
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Calhoun
Best cities
Worst cities
County context
57.9%
of residents on fluoridated water (CDC, 2020)
0
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Calhoun
Industrial polluters nearby
Facilities reporting the most surface-water releases in Calhoun, 2023.
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
BOWIE INTERNATIONAL LLC LAKE CITY, IA51449 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 4 cities in Calhoun
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Lake City | A | 91.1 | 2K | 48 | Unresolved | |
| 2 | Manson | A- | 86.9 | 2K | 33 | Health Unresolved | |
| 3 | Pomeroy | A- | 85 | 671 | 9 | Health Unresolved | |
| 4 | Rockwell City | B+ | 82.4 | 3K | 22 | Health Unresolved |