77.3
County avg score
6
Cities ranked
83%
A or B grade
0%
D or F grade
6
Health violations
1
PFAS detected
Grade Distribution
How Hancock cities scored
A
2
33%
Excellent
B
3
50%
Good
C
1
17%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Maine average
▼ 4.1 pts below state average
City Map
Water quality across Hancock
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Hancock
County context
1
Superfund site in Hancock
67.9%
of residents on fluoridated water (CDC, 2020)
0
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Hancock
Industrial polluters nearby
Facilities reporting the most surface-water releases in Hancock, 2023.
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
HINCKLEY CO TRENTON, ME04605 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Hancock
Superfund sites nearby
Federally tracked hazardous-waste sites within Hancock on the EPA National Priorities List.
- CALLAHAN MINING CORP
Source: EPA Superfund National Priorities List
Full Rankings
All 6 cities in Hancock
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Bar Harbor | A- | 87.6 | 4K | 4 | Health Unresolved | |
| 2 | Winter Harbor | A- | 86.2 | 700 | 17 | Health Unresolved | |
| 3 | Ellsworth | B | 77.5 | 4K | 27 | Health Unresolved | |
| 4 | Southwest Hbr | B- | 72.6 | 2K | 94 | Health Unresolved | |
| 5 | Mount Desert | B- | 72.5 | 2K | 49 | Health Unresolved | |
| 6 | Castine | C+ | 67.3 | 1K | 250 | Health Unresolved |