Marion Water Quality Report
4 cities ranked · Average grade: A- · Iowa
Avg Score
87.9
Cities Ranked
4
Health Violations
4
PFAS Detected
3
87.9
County avg score
4
Cities ranked
100%
A or B grade
0%
D or F grade
4
Health violations
3
PFAS detected
Grade Distribution
How Marion 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
▲ 0.4 pts above state average
City Map
Water quality across Marion
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Marion
Best cities
Worst cities
County context
99.1%
of residents on fluoridated water (CDC, 2020)
92
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Marion
Industrial polluters nearby
Facilities reporting the most surface-water releases in Marion, 2023.
Total reported releases to surface water: 92 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
VERMEER CORP PELLA, IA50219 | Manganese | 92 |
PRECISION PULLEY & IDLER INC PELLA, IA50219 | Nickel | 0 |
3M CO - KNOXVILLE KNOXVILLE, IA50138 | — | — |
PELLA CORP PELLA, IA50219 | — | — |
PELLA ENGRAVING CO PELLA, IA50219 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 4 cities in Marion
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Melcher-Dallas | A | 94.2 | 1K | 8 | Health Unresolved | |
| 2 | Pleasantville | A | 91 | 2K | 4 | Health Unresolved | |
| 3 | Pella | A- | 87.2 | 11K | 85 | Health Unresolved | |
| 4 | Knoxville | B | 79.2 | 15K | 8 | Health Unresolved |