Iroquois Water Quality Report
13 cities ranked · Average grade: B · Illinois
Avg Score
78.5
Cities Ranked
13
Health Violations
10
PFAS Detected
1
78.5
County avg score
13
Cities ranked
69%
A or B grade
0%
D or F grade
10
Health violations
1
PFAS detected
Grade Distribution
How Iroquois cities scored
A
3
23%
Excellent
B
6
46%
Good
C
4
31%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Illinois average
▼ 1.2 pts below state average
City Map
Water quality across Iroquois
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Iroquois
Worst cities
County context
99.0%
of residents on fluoridated water (CDC, 2020)
0
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Iroquois
Industrial polluters nearby
Facilities reporting the most surface-water releases in Iroquois, 2023.
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
INCOBRASA INDUSTRIES LTD GILMAN, IL60938 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 13 cities in Iroquois
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Crescent City | A | 93.9 | 650 | 13 | Health Unresolved | |
| 2 | Buckley | A | 91.9 | 600 | 12 | Unresolved | |
| 3 | Watseka | A- | 86.7 | 6K | 25 | Health Unresolved | |
| 4 | Cissna Park | B+ | 83.5 | 846 | 8 | Unresolved | |
| 5 | Chebanse | B+ | 83.3 | 1K | 52 | Health Unresolved | |
| 6 | Gilman | B+ | 82.2 | 2K | 18 | Health Unresolved | |
| 7 | Sheldon | B+ | 81.2 | 950 | 14 | Unresolved | |
| 8 | Onarga | B+ | 80 | 1K | 10 | Health Unresolved | |
| 9 | Loda | B | 79.6 | 2K | 25 | Health Unresolved | |
| 10 | Milford | C+ | 68.4 | 2K | 56 | Health Unresolved | |
| 11 | Ashkum | C+ | 68.2 | 724 | 27 | Health Unresolved | |
| 12 | Clifton | C | 61 | 2K | 50 | Health Unresolved | |
| 13 | Danforth | C | 60.4 | 663 | 22 | Health Lead Unresolved |