Poweshiek Water Quality Report
2 cities ranked · Average grade: B- · Iowa
Avg Score
71.2
Cities Ranked
2
Health Violations
1
PFAS Detected
1
71.2
County avg score
2
Cities ranked
50%
A or B grade
50%
D or F grade
1
Health violations
1
PFAS detected
Grade Distribution
How Poweshiek cities scored
A
1
50%
Excellent
B
0
0%
Good
C
0
0%
Fair
D
1
50%
Poor
F
0
0%
Failing
Comparison
County vs Iowa average
▼ 16.3 pts below state average
City Map
Water quality across Poweshiek
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Poweshiek
Best cities
Worst cities
County context
83.0%
of residents on fluoridated water (CDC, 2020)
0
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Poweshiek
Industrial polluters nearby
Facilities reporting the most surface-water releases in Poweshiek, 2023.
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
JELD-WEN DOOR SYSTEMS GRINNELL, IA50112 | — | — |
BASF MALCOM, IA50157 | — | — |
THOMBERT INC. BROOKLYN, IA52211 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings