Jefferson Water Quality Report
3 cities ranked · Average grade: C- · Montana
Avg Score
58.6
Cities Ranked
3
Health Violations
3
PFAS Detected
0
58.6
County avg score
3
Cities ranked
33%
A or B grade
67%
D or F grade
3
Health violations
0
PFAS detected
Grade Distribution
How Jefferson cities scored
A
0
0%
Excellent
B
1
33%
Good
C
0
0%
Fair
D
1
33%
Poor
F
1
33%
Failing
Comparison
County vs Montana average
▼ 7.1 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.
Highlights
Top & bottom cities in Jefferson
Best cities
Worst cities
County context
1
Superfund site in Jefferson
0
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: 0 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
ASH GROVE CEMENT CO MONTANA CITY PLANT CLANCY, MT59634 | Lead compounds | 0 |
MARKS-MILLER POST & POLE INC CLANCY, MT59634 | — | — |
BARRICK GOLD CORP-GOLDEN SUNLIGHT MINE WHITEHALL, MT59759 | — | — |
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.
- BASIN MINING AREA
Source: EPA Superfund National Priorities List
Full Rankings