Mercer Water Quality Report
6 cities ranked · Average grade: A- · Illinois
Avg Score
87.5
Cities Ranked
6
Health Violations
4
PFAS Detected
0
87.5
County avg score
6
Cities ranked
100%
A or B grade
0%
D or F grade
4
Health violations
0
PFAS detected
Grade Distribution
How Mercer cities scored
A
4
67%
Excellent
B
2
33%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Illinois average
▲ 7.8 pts above state average
City Map
Water quality across Mercer
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Mercer
Best cities
Worst cities
County context
100.0%
of residents on fluoridated water (CDC, 2020)
0
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Mercer
Industrial polluters nearby
Facilities reporting the most surface-water releases in Mercer, 2023.
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
MEMINGER METAL FINISHING INC ALEDO, IL61231 | — | — |
GENERAL METAL COATINGS LLC ALEDO, IL61231 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 6 cities in Mercer
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Aledo | A+ | 96.1 | 3K | 12 | Health Unresolved | |
| 2 | Mathersville | A | 94.5 | 651 | 43 | Unresolved | |
| 3 | New Boston | A | 91.1 | 613 | 12 | Health Unresolved | |
| 4 | Keithsburg | A- | 87.4 | 747 | 7 | Unresolved | |
| 5 | Viola | B | 79.9 | 970 | 170 | Health Unresolved | |
| 6 | Sherrard | B | 76.1 | 2K | 73 | Health Unresolved |