Clayton Water Quality Report
7 cities ranked · Average grade: A- · Iowa
Avg Score
88.7
Cities Ranked
7
Health Violations
3
PFAS Detected
0
88.7
County avg score
7
Cities ranked
100%
A or B grade
0%
D or F grade
3
Health violations
0
PFAS detected
Grade Distribution
How Clayton cities scored
A
5
71%
Excellent
B
2
29%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Iowa average
▲ 1.2 pts above state average
City Map
Water quality across Clayton
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Clayton
Worst cities
County context
43.2%
of residents on fluoridated water (CDC, 2020)
244,429
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Clayton
Industrial polluters nearby
Facilities reporting the most surface-water releases in Clayton, 2023.
Total reported releases to surface water: 244,429 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
PRAIRIE FARMS LUANA, IA52156 | Nitric acid | 244,429 |
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 7 cities in Clayton
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Strawberry Point | A | 94.4 | 1K | 6 | Health Unresolved | |
| 2 | Garnavillo | A | 91.6 | 763 | 4 | Unresolved | |
| 3 | Guttenberg | A | 90.4 | 2K | 8 | Unresolved | |
| 4 | Edgewood | A- | 89.5 | 939 | 3 | Health Unresolved | |
| 5 | Monona | A- | 87.5 | 1K | 4 | Unresolved | |
| 6 | Mcgregor | B+ | 84.8 | 902 | 21 | Health Unresolved | |
| 7 | Elkader | B+ | 82.6 | 1K | 36 | Unresolved |