Marshall Water Quality Report
6 cities ranked · Average grade: A · Iowa
Avg Score
90.8
Cities Ranked
6
Health Violations
6
PFAS Detected
2
90.8
County avg score
6
Cities ranked
100%
A or B grade
0%
D or F grade
6
Health violations
2
PFAS detected
Grade Distribution
How Marshall cities scored
A
5
83%
Excellent
B
1
17%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Iowa average
▲ 3.3 pts above state average
City Map
Water quality across Marshall
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Marshall
County context
97.5%
of residents on fluoridated water (CDC, 2020)
21
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Marshall
Industrial polluters nearby
Facilities reporting the most surface-water releases in Marshall, 2023.
Total reported releases to surface water: 21 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
FISHER CONTROLS INTERNATIONAL LLC MARSHALLTOWN, IA50158 | Manganese | 21 |
DIAMOND VOGEL INC. MARSHALLTOWN, IA50158 | — | — |
LENNOX INDUSTRIES INC MARSHALLTOWN, IA50158 | — | — |
SWIFT PORK MARSHALLTOWN, IA50158 | — | — |
FORTERRA CONCRETE PRODUCTS - MARSHALLTOWN MARSHALLTOWN, IA50158 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 6 cities in Marshall
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Gilman | A+ | 95.9 | 582 | 8 | Health | |
| 2 | State Center | A | 93.2 | 1K | 13 | Health Unresolved | |
| 3 | Melbourne | A | 92.4 | 765 | 5 | Health Unresolved | |
| 4 | Le Grand | A | 91.1 | 910 | 9 | Health Unresolved | |
| 5 | Marshalltown | A- | 88.4 | 29K | 45 | Health Unresolved | |
| 6 | Waverly | B+ | 83.7 | 48K | 30 | Health PFAS Unresolved |