Jefferson Water Quality Report
1 cities ranked · Average grade: B+ · Kentucky
Avg Score
82.2
Cities Ranked
1
Health Violations
1
PFAS Detected
1
82.2
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
0
0%
Excellent
B
1
100%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Kentucky average
▲ 2.9 pts above state average
City Map
Water quality across Jefferson
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Jefferson
Best cities
Worst cities
County context
1
Superfund site in Jefferson
100.0%
of residents on fluoridated water (CDC, 2020)
141,367
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: 141,367 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
LOUISVILLE GAS & ELECTRIC CO. - MILL CREEK STATION LOUISVILLE, KY40272 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 87,626 |
BAKELITE SYNTHETICS LOUISVILLE, KY40216 | Methanol | 50,007 |
CARDINAL ALUMINUM CO PLANT 3 LOUISVILLE, KY40219 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 3,709 |
GE APPLIANCES A HAIER CO - APPLIANCE PARK LOUISVILLE, KY40225 | Zinc compounds | 24 |
MPLX TERMINALS LLC - LOUISVILLE KRAMERS KY TERMINAL LOUISVILLE, KY40216 | Polycyclic aromatic compounds | 0 |
+ 5 more facilities
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.
- DISTLER FARM
Source: EPA Superfund National Priorities List
Full Rankings
All 1 cities in Jefferson
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Louisville | B+ | 82.2 | 765K | 82 | Health PFAS Unresolved |