Rockingham Water Quality Report
23 cities ranked · Average grade: C- · New Hampshire
Avg Score
59.3
Cities Ranked
23
Health Violations
23
PFAS Detected
9
59.3
County avg score
23
Cities ranked
35%
A or B grade
43%
D or F grade
23
Health violations
9
PFAS detected
Grade Distribution
How Rockingham cities scored
A
2
9%
Excellent
B
6
26%
Good
C
5
22%
Fair
D
2
9%
Poor
F
8
35%
Failing
Comparison
County vs New Hampshire average
▼ 3.0 pts below state average
City Map
Water quality across Rockingham
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Rockingham
Best cities
Worst cities
County context
8
Superfund sites in Rockingham
39.5%
of residents on fluoridated water (CDC, 2020)
11
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Rockingham
Industrial polluters nearby
Facilities reporting the most surface-water releases in Rockingham, 2023.
Total reported releases to surface water: 11 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
SPRAGUE RIVER ROAD TERMINAL NEWINGTON, NH03801 | 1,2,4-Trimethylbenzene | 11 |
HOLOGIC INC LONDONDERRY, NH03053 | — | — |
ALCUMET INC LONDONDERRY, NH03053 | — | — |
L3 TECHNOLOGIES INC. LONDONDERRY, NH03053 | — | — |
LACTALIS US YOGURT INC. LONDONDERRY, NH03053 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Rockingham
Superfund sites nearby
Federally tracked hazardous-waste sites within Rockingham on the EPA National Priorities List.
- AUBURN ROAD LANDFILL
- BEEDE WASTE OIL
- COAKLEY LANDFILL
- KEEFE ENVIRONMENTAL SERVICES KES
- MOTTOLO PIG FARM
+ 3 more sites
Source: EPA Superfund National Priorities List
Full Rankings
All 23 cities in Rockingham
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Chester | A- | 87.3 | 578 | 60 | Health Unresolved | |
| 2 | Rye | A- | 86.7 | 4K | 6 | Health PFAS | |
| 3 | Portsmouth | B+ | 80.7 | 43K | 14 | Health PFAS Unresolved | |
| 4 | Newton | B+ | 80.1 | 533 | 111 | Health Unresolved | |
| 5 | Newmarket | B | 79.3 | 5K | 239 | Health Unresolved | |
| 6 | Epping | B | 76.7 | 2K | 106 | Health Unresolved | |
| 7 | Newfields | B- | 72.7 | 550 | 22 | Health Lead Unresolved | |
| 8 | Hampstead | B- | 71 | 7K | 96 | Health PFAS Unresolved | |
| 9 | Seabrook | C+ | 68.2 | 14K | 221 | Health PFAS Unresolved | |
| 10 | New Castle | C+ | 66.7 | 910 | 29 | Health Lead Unresolved | |
| 11 | Brentwood | C+ | 66.5 | 1K | 7 | Health Lead Unresolved | |
| 12 | Sandown | C+ | 66 | 1K | 187 | Health Unresolved | |
| 13 | Northwood | C | 64.1 | 996 | 118 | Health Lead Unresolved | |
| 14 | Kingston | D+ | 51.2 | 627 | 16 | Health Lead Unresolved | |
| 15 | Salem | D | 47.4 | 22K | 292 | Health PFAS Unresolved | |
| 16 | Derry | F | 42.5 | 21K | 390 | Health PFAS Unresolved | |
| 17 | Raymond | F | 40.2 | 5K | 154 | Health Unresolved | |
| 18 | Londonderry | F | 39 | 9K | 605 | Health PFAS Unresolved | |
| 19 | Windham | F | 38.4 | 3K | 169 | Health Lead Unresolved | |
| 20 | Exeter | F | 37.5 | 14K | 203 | Health PFAS Unresolved | |
| 21 | Danville | F | 36.5 | 1K | 249 | Health Lead Unresolved | |
| 22 | Stratham | F | 36 | 2K | 387 | Health Lead Unresolved | |
| 23 | Plaistow | F | 30 | 2K | 382 | Health Lead Unresolved |