77.2
County avg score
6
Cities ranked
83%
A or B grade
0%
D or F grade
2
Health violations
2
PFAS detected
Grade Distribution
How Warren cities scored
A
1
17%
Excellent
B
4
67%
Good
C
1
17%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs New Jersey average
▲ 6.6 pts above state average
City Map
Water quality across Warren
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Warren
County context
1
Superfund site in Warren
67,023
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Warren
Industrial polluters nearby
Facilities reporting the most surface-water releases in Warren, 2023.
Total reported releases to surface water: 67,023 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
AVANTOR PERFORMANCE MATERIALS PHILLIPSBURG, NJ08865 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 37,665 |
DSM NUTRITIONAL PRODUCTS LLC BELVIDERE, NJ07823 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 29,347 |
MCWANE DUCTILE-NEW JERSEY PHILLIPSBURG, NJ08865 | Zinc compounds | 11 |
ANDREX HACKETTSTOWN, NJ07840 | — | — |
BOREALIS COMPOUNDS INC. PORT MURRAY, NJ07865 | — | — |
+ 1 more facility
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Warren
Superfund sites nearby
Federally tracked hazardous-waste sites within Warren on the EPA National Priorities List.
- POHATCONG VALLEY GROUND WATER CONTAMINATION
Source: EPA Superfund National Priorities List
Full Rankings
All 6 cities in Warren
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Blairstown Twp.-2104 | A- | 85.8 | 800 | 28 | Unresolved | |
| 2 | Washington Boro-2121 | B+ | 84.7 | 11K | 26 | PFAS Unresolved | |
| 3 | Phillipsburg Town-2119 | B+ | 81.4 | 27K | 32 | Unresolved | |
| 4 | Allamuchy Twp.-2101 | B+ | 80.4 | 5K | 36 | Unresolved | |
| 5 | Hackettstown Town-2108 | B- | 72.6 | 22K | 100 | Health Unresolved | |
| 6 | Alpha Boro-2102 | C- | 58.4 | 3K | 341 | Health Unresolved |