Jefferson Water Quality Report
1 cities ranked · Average grade: A- · Iowa
Avg Score
85.3
Cities Ranked
1
Health Violations
1
PFAS Detected
1
85.3
County avg score
1
Cities ranked
100%
A or B grade
0%
D or F grade
1
Health violations
1
PFAS detected
Grade Distribution
How Jefferson cities scored
A
1
100%
Excellent
B
0
0%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Iowa average
▼ 2.2 pts below state average
City Map
Water quality across Jefferson
Each dot is a city, colored by grade. Click any city to view its full report.
County context
1
Superfund site in Jefferson
100.0%
of residents on fluoridated water (CDC, 2020)
20
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Jefferson
Industrial polluters nearby
Facilities reporting the most surface-water releases in Jefferson, 2023.
Total reported releases to surface water: 20 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
HYCAST LLC FAIRFIELD, IA52556 | Lead compounds | 20 |
DEXTER LAUNDRY INC FAIRFIELD, IA52556 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Jefferson
Superfund sites nearby
Federally tracked hazardous-waste sites within Jefferson on the EPA National Priorities List.
- FAIRFIELD COAL GASIFICATION PLANT
Source: EPA Superfund National Priorities List
Full Rankings
All 1 cities in Jefferson
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Fairfield | A- | 85.3 | 10K | 28 | Health Unresolved |