Somerset Water Quality Report
2 cities ranked · Average grade: B- · New Jersey
Avg Score
71.6
Cities Ranked
2
Health Violations
1
PFAS Detected
1
71.6
County avg score
2
Cities ranked
50%
A or B grade
50%
D or F grade
1
Health violations
1
PFAS detected
Grade Distribution
How Somerset cities scored
A
1
50%
Excellent
B
0
0%
Good
C
0
0%
Fair
D
1
50%
Poor
F
0
0%
Failing
Comparison
County vs New Jersey average
▲ 1.2 pts above state average
City Map
Water quality across Somerset
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Somerset
Best cities
Worst cities
County context
14
Superfund sites in Somerset
324
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Somerset
Industrial polluters nearby
Facilities reporting the most surface-water releases in Somerset, 2023.
Total reported releases to surface water: 324 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
FIRMENICH INC PLAINSBORO, NJ08536 | 1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexamethylcyclopenta[g]-2-benzopyran | 213 |
V&S AMBOY GALVANIZING LLC PERTH AMBOY, NJ08861 | Zinc compounds | 89 |
SEWAREN TERMINAL SEWAREN, NJ07077 | Xylene (mixed isomers) | 18 |
AMES ADVANCED MATERIALS CORP SOUTH PLAINFIELD, NJ07080 | Silver And Silver Compounds | 4 |
PRIDE SOLVENTS & CHEMICAL CO OF NEW JERSEY AVENEL, NJ07001 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Somerset
Superfund sites nearby
Federally tracked hazardous-waste sites within Somerset on the EPA National Priorities List.
- ATLANTIC RESOURCES
- CHEMICAL INSECTICIDE CORP
- CHEMSOL INC
- CORNELL DUBILIER ELECTRONICS INC
- CPS MADISON INDUSTRIES
+ 9 more sites
Source: EPA Superfund National Priorities List
Full Rankings
All 2 cities in Somerset
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Rocky Hill Boro-1817 | A- | 89 | 687 | 19 | Unresolved | |
| 2 | Franklin Twp.-1808 | D+ | 54.2 | 103K | 170 | Health PFAS Unresolved |