Hancock Water Quality Report
9 cities ranked · Average grade: B- · Maine
Avg Score
71.6
Cities Ranked
9
Health Violations
9
PFAS Detected
1
71.6
County avg score
9
Cities ranked
67%
A or B grade
11%
D or F grade
9
Health violations
1
PFAS detected
Grade Distribution
How Hancock cities scored
A
2
22%
Excellent
B
4
44%
Good
C
2
22%
Fair
D
1
11%
Poor
F
0
0%
Failing
Comparison
County vs Maine average
▼ 8.8 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 9 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 | Stonington | B- | 74.5 | 727 | 71 | Health Unresolved | |
| 5 | Southwest Hbr | B- | 72.6 | 2K | 94 | Health Unresolved | |
| 6 | Mount Desert | B- | 72.5 | 2K | 49 | Health Unresolved | |
| 7 | Castine | C+ | 67.3 | 1K | 250 | Health Unresolved | |
| 8 | Bucksport | C- | 59 | 2K | 116 | Health Unresolved | |
| 9 | Hancock | D | 47 | 516 | 299 | Health Unresolved |