47
County avg score
6
Cities ranked
17%
A or B grade
67%
D or F grade
6
Health violations
0
PFAS detected
Grade Distribution
How Belknap cities scored
A
1
17%
Excellent
B
0
0%
Good
C
1
17%
Fair
D
1
17%
Poor
F
3
50%
Failing
Comparison
County vs New Hampshire average
▼ 17.9 pts below state average
City Map
Water quality across Belknap
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Belknap
Best cities
Worst cities
County context
60.7%
of residents on fluoridated water (CDC, 2020)
0
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Belknap
Industrial polluters nearby
Facilities reporting the most surface-water releases in Belknap, 2023.
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
NEW HAMPSHIRE BALL BEARINGS INC LACONIA, NH03246 | — | — |
BOYD LACONIA LLC LACONIA, NH03246 | — | — |
RYMES - LACONIA LACONIA, NH03246 | — | — |
SPX AIDS TO NAVIGATION TILTON, NH03276 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 6 cities in Belknap
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Barnstead | A- | 87.5 | 2K | 74 | Health Unresolved | |
| 2 | Meredith | C- | 59.4 | 4K | 292 | Health Unresolved | |
| 3 | Alton | D | 46.1 | 2K | 214 | Health Lead Unresolved | |
| 4 | Gilford | F | 31 | 3K | 1030 | Health Lead Unresolved | |
| 5 | Belmont | F | 30 | 2K | 444 | Health Lead Unresolved | |
| 6 | New Hampton | F | 28 | 600 | 133 | Health Lead Unresolved |