Plymouth Water Quality Report
6 cities ranked · Average grade: A- · Iowa
Avg Score
89.9
Cities Ranked
6
Health Violations
6
PFAS Detected
1
89.9
County avg score
6
Cities ranked
100%
A or B grade
0%
D or F grade
6
Health violations
1
PFAS detected
Grade Distribution
How Plymouth cities scored
A
6
100%
Excellent
B
0
0%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Iowa average
▲ 2.4 pts above state average
City Map
Water quality across Plymouth
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Plymouth
Best cities
Worst cities
County context
1
Superfund site in Plymouth
24.0%
of residents on fluoridated water (CDC, 2020)
0
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Plymouth
Industrial polluters nearby
Facilities reporting the most surface-water releases in Plymouth, 2023.
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
SMITHCO MANUFACTURING CO LE MARS, IA51031 | — | — |
WELLS ENTERPRISES INC SOUTH ICE CREAM PLANT LE MARS, IA51031 | — | — |
WELLS ENTERPRISES INC NORTH ICE CREAM PLANT LE MARS, IA51031 | — | — |
DFA DAIRY BRANDS FLUID LLC DBA KEMPS LE MARS LE MARS, IA51031 | — | — |
WELLS ENTERPRISES INC ENGINEERING CENTER LE MARS, IA51031 | — | — |
+ 1 more facility
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Plymouth
Superfund sites nearby
Federally tracked hazardous-waste sites within Plymouth on the EPA National Priorities List.
- HIGHWAY 3 PCE
Source: EPA Superfund National Priorities List
Full Rankings
All 6 cities in Plymouth
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Merrill | A | 91.1 | 717 | 58 | Health Unresolved | |
| 2 | Hinton | A | 90.6 | 935 | 13 | Health Unresolved | |
| 3 | Le Mars | A | 90.5 | 11K | 17 | Health Unresolved | |
| 4 | Kingsley | A- | 89.9 | 1K | 11 | Health Unresolved | |
| 5 | Remsen | A- | 88.9 | 2K | 12 | Health Unresolved | |
| 6 | Akron | A- | 88.3 | 2K | 15 | Health Unresolved |