San Juan Water Quality Report
3 cities ranked · Average grade: F · Washington
Avg Score
44.3
Cities Ranked
3
Health Violations
3
PFAS Detected
0
44.3
County avg score
3
Cities ranked
0%
A or B grade
100%
D or F grade
3
Health violations
0
PFAS detected
Grade Distribution
How San Juan cities scored
A
0
0%
Excellent
B
0
0%
Good
C
0
0%
Fair
D
0
0%
Poor
F
3
100%
Failing
Comparison
County vs Washington average
▼ 25.8 pts below state average
City Map
Water quality across San Juan
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in San Juan
Best cities
Worst cities
Full Rankings
All 3 cities in San Juan
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Lopez Island | F | 44.9 | 2K | 229 | Health Unresolved | |
| 2 | Eastsound | F | 44 | 5K | 525 | Health Unresolved | |
| 3 | Friday Harbor | F | 43.9 | 7K | 961 | Health Unresolved |