Rock Island Water Quality Report
13 cities ranked · Average grade: C+ · Illinois
Avg Score
66.4
Cities Ranked
13
Health Violations
11
PFAS Detected
7
66.4
County avg score
13
Cities ranked
62%
A or B grade
31%
D or F grade
11
Health violations
7
PFAS detected
Grade Distribution
How Rock Island cities scored
A
1
8%
Excellent
B
7
54%
Good
C
1
8%
Fair
D
2
15%
Poor
F
2
15%
Failing
Comparison
County vs Illinois average
▼ 13.3 pts below state average
City Map
Water quality across Rock Island
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Rock Island
Worst cities
County context
88.4%
of residents on fluoridated water (CDC, 2020)
2,198,129
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Rock Island
Industrial polluters nearby
Facilities reporting the most surface-water releases in Rock Island, 2023.
Total reported releases to surface water: 2,198,129 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
TYSON FRESH MEATS INC - JOSLIN IL HILLSDALE, IL61257 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 2,197,525 |
3M CHEMICAL OPERATIONS' CORDOVA FACILITY CORDOVA, IL61242 | Nickel And Nickel Compounds | 595 |
JOHN DEERE SEEDING & CYLINDER MOLINE, IL61265 | Manganese | 9 |
PRECISION ALUMINUM ROCK ISLAND, IL61201 | — | — |
ROCK ISLAND LUBRICANTS (RILCO) ROCK ISLAND, IL61201 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 13 cities in Rock Island
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Reynolds | A | 91.3 | 508 | 9 | Unresolved | |
| 2 | Andalusia | B+ | 82.8 | 1K | 3 | Unresolved | |
| 3 | Taylor Ridge | B+ | 82.1 | 719 | 113 | Health Unresolved | |
| 4 | Carbon Cliff | B+ | 80.5 | 2K | 32 | Health Unresolved | |
| 5 | Hampton | B | 77.3 | 2K | 28 | Health Unresolved | |
| 6 | Rock Island | B- | 72.2 | 47K | 58 | Health PFAS Unresolved | |
| 7 | Cordova | B- | 70.9 | 2K | 40 | Health Unresolved | |
| 8 | Port Byron | B- | 70.6 | 2K | 40 | Health Unresolved | |
| 9 | Moline | C | 60.5 | 46K | 95 | Health Unresolved | |
| 10 | East Moline | D+ | 54.2 | 23K | 57 | Health Unresolved | |
| 11 | Milan | D | 45.5 | 7K | 166 | Health Unresolved | |
| 12 | Coal Valley | F | 38.9 | 5K | 147 | Health Unresolved | |
| 13 | Silvis | F | 36.8 | 9K | 114 | Health Unresolved |