Sierra Water Quality Report
2 cities ranked · Average grade: A- · California
Avg Score
87.8
Cities Ranked
2
Health Violations
1
PFAS Detected
0
87.8
County avg score
2
Cities ranked
100%
A or B grade
0%
D or F grade
1
Health violations
0
PFAS detected
Grade Distribution
How Sierra cities scored
A
1
50%
Excellent
B
1
50%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs California average
▲ 11.3 pts above state average
City Map
Water quality across Sierra
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Sierra
Best cities
Worst cities
Full Rankings
All 2 cities in Sierra
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Loyalton | A | 91.1 | 983 | 4 | Unresolved | |
| 2 | Downieville | B+ | 84.5 | 2K | 23 | Health Unresolved |