Jefferson Water Quality Report
2 cities ranked · Average grade: C+ · Oregon
Avg Score
65.5
Cities Ranked
2
Health Violations
2
PFAS Detected
1
65.5
County avg score
2
Cities ranked
50%
A or B grade
50%
D or F grade
2
Health violations
1
PFAS detected
Grade Distribution
How Jefferson cities scored
A
0
0%
Excellent
B
1
50%
Good
C
0
0%
Fair
D
1
50%
Poor
F
0
0%
Failing
Comparison
County vs Oregon average
▲ 3.2 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
7.7%
of residents on fluoridated water (CDC, 2020)
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.
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
WILBUR-ELLIS MADRAS MADRAS, OR97741 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 2 cities in Jefferson
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Madras | B+ | 82.1 | 16K | 160 | Health Unresolved | |
| 2 | Terrebonne | D | 49 | 6K | 331 | Health Unresolved |