Carroll Water Quality Report
7 cities ranked · Average grade: B+ · Illinois
Avg Score
83.9
Cities Ranked
7
Health Violations
6
PFAS Detected
0
83.9
County avg score
7
Cities ranked
86%
A or B grade
0%
D or F grade
6
Health violations
0
PFAS detected
Grade Distribution
How Carroll cities scored
A
4
57%
Excellent
B
2
29%
Good
C
1
14%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Illinois average
▲ 4.2 pts above state average
City Map
Water quality across Carroll
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Carroll
Worst cities
County context
95.0%
of residents on fluoridated water (CDC, 2020)
0
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Carroll
Industrial polluters nearby
Facilities reporting the most surface-water releases in Carroll, 2023.
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
ELKAY PLUMBING PRODUCTS CO LANARK, IL61046 | — | — |
METFORM LLC MOUNT CARROLL, IL61053 | — | — |
ELKAY PLUMBING PRODUCTS CO SAVANNA, IL61074 | — | — |
METFORM CORP EXTRUSION SCIENCE PRODUCTS SAVANNA, IL61074 | — | — |
METFORM L.L.C. HOT FORMED PRODUCTS PLANT SAVANNA, IL61074 | — | — |
+ 3 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 7 cities in Carroll
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Mount Carroll | A | 92.7 | 1K | 21 | Health Unresolved | |
| 2 | Milledgeville | A | 92.3 | 989 | 6 | Health Unresolved | |
| 3 | Thomson | A- | 88.7 | 3K | 7 | Health Unresolved | |
| 4 | Chadwick | A- | 86.3 | 523 | 14 | Health Unresolved | |
| 5 | Savanna | B+ | 82.9 | 3K | 6 | Unresolved | |
| 6 | Lanark | B+ | 82.3 | 2K | 10 | Health Unresolved | |
| 7 | Shannon | C | 61.8 | 801 | 44 | Health Lead Unresolved |