Barnstable Water Quality Report
14 cities ranked · Average grade: B+ · Massachusetts
Avg Score
82.4
Cities Ranked
14
Health Violations
13
PFAS Detected
5
82.4
County avg score
14
Cities ranked
86%
A or B grade
7%
D or F grade
13
Health violations
5
PFAS detected
Grade Distribution
How Barnstable cities scored
A
7
50%
Excellent
B
5
36%
Good
C
1
7%
Fair
D
1
7%
Poor
F
0
0%
Failing
Comparison
County vs Massachusetts average
▲ 3.1 pts above state average
City Map
Water quality across Barnstable
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Barnstable
Best cities
Worst cities
County context
1
Superfund site in Barnstable
0.0%
of residents on fluoridated water (CDC, 2020)
0
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Barnstable
Industrial polluters nearby
Facilities reporting the most surface-water releases in Barnstable, 2023.
Total reported releases to surface water: 0 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
CANAL GENERATING LLC SANDWICH, MA02563 | Polycyclic aromatic compounds | 0 |
U.S. ARMY NATIONAL GUARD CAMP EDWARDS RANGE BOURNE, MA02542 | — | — |
CAPE COD READY MIX BREWSTER, MA02631 | — | — |
CAPE COD READY-MIX SOUTH DENNIS, MA02660 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Barnstable
Superfund sites nearby
Federally tracked hazardous-waste sites within Barnstable on the EPA National Priorities List.
- OTIS AIR NATIONAL GUARD BASE CAMP EDWARDS
Source: EPA Superfund National Priorities List
Full Rankings
All 14 cities in Barnstable
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Harwich | A+ | 95.9 | 39K | 5 | Health Unresolved | |
| 2 | Sandwich | A | 94.5 | 79K | 37 | Health | |
| 3 | Provincetown | A | 93.7 | 22K | 11 | Health Unresolved | |
| 4 | Dennis | A | 93.2 | 65K | 40 | Health Unresolved | |
| 5 | Chatham | A | 91.1 | 30K | 68 | Health Unresolved | |
| 6 | Eastham | A- | 89.7 | 6K | 1 | Unresolved | |
| 7 | Yarmouth | A- | 86.1 | 39K | 32 | Health Unresolved | |
| 8 | Brewster | B+ | 80.7 | 35K | 28 | Health Unresolved | |
| 9 | Falmouth | B | 79 | 104K | 40 | Health Unresolved | |
| 10 | Mashpee | B | 77.5 | 37K | 110 | Health Unresolved | |
| 11 | Orleans | B | 75.6 | 19K | 36 | Health Unresolved | |
| 12 | Bourne | B- | 74.8 | 36K | 76 | Health PFAS Unresolved | |
| 13 | Wellfleet | C+ | 69.8 | 1K | 192 | Health Unresolved | |
| 14 | Barnstable | D+ | 51.5 | 95K | 136 | Health PFAS Unresolved |