Somerset, NJ

Compiled by PlainEnviro Editorial, Environmental Data Editorial Team · July 13, 2026

Moderate Risk (40/100)

A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology.

Environmental data for Somerset in New Jersey · Population: 346,203

Somerset, NJ is tracked across three EPA datasets covering 25 Toxics Release Inventory (TRI) facilities, 10 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 40/100 (Moderate Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.

Industrial disclosures inside the county total 482.8K lbs of reported toxic releases under EPCRA Section 313, while 2 water systems carry an active health-based violation in the SDWIS record. No EPA Air Quality System monitors currently report data for this county.

All figures below draw directly from federal EPA records, TRI self-reported emissions, SDWIS compliance history, NPL Hazard Ranking System scores, and AQS daily AQI summaries, and are not adjusted, weighted, or forecast. A past violation or elevated score does not itself indicate current unsafe conditions; it documents the regulatory and disclosure history publicly filed with the U.S. Environmental Protection Agency through the most recent reporting cycle.

Population

346,203

TRI Facilities

Water Systems

Superfund Sites

Total Releases

482.8K lbs

Water Systems (10)

System	City	Source	Population	Violations	Health
NJ AMERICAN WATER - RARITAN	Brtidgewater	Surface Water	615,430	0	–
NJ AMERICAN WATER - LIBERTY	Bound Brook	Surface Water	134,000	0	–
FRANKLIN TOWNSHIP DEPT OF PUBLIC WORKS	Somerset	Surface Water	57,150	5	Yes
NORTH BRUNSWICK W DEPT	Franklin	Surface Water	43,905	0	–
NJ AMERICAN WATER - FRENCHTOWN	Bound Brook	Groundwater	1,373	0	–
NJ AMERICAN WATER - OLDWICK	Bound Brook	Groundwater	246	0	–
HILLANDALE MOBILE HOME PARK	Belle Mead	Groundwater	220	1	Yes
LEHMAN HOME PARK	Bridgewater	Groundwater	63	0	–
KA MIDDLEBURY MOBILE HOME PARK	Hills Borough	Groundwater	57	0	–
TILLMANS MOBILE HOME PARK	Watchung	Groundwater	32	0	–

TRI Facilities (25)

#	Facility	City	Industry	Total Releases
1	Rotor Clip Co Inc	Somerset	Fabricated Metals	186.1K lbs
2	Viscofan USA Inc.	Bridgewater	Food	133.4K lbs
3	Veeco Instruments	Somerset	Computers and Electronic Products	42.5K lbs
4	L'Oreal USA Products Inc	Somerset	Chemicals	36.8K lbs
5	Rust-Oleum Corp	Somerset	Chemicals	23.8K lbs
6	Rb Manufacturing LLC	Hillsborough	Chemicals	16.2K lbs
7	Zeus Co LLC Bnj	Somerville	Plastics and Rubber	11.1K lbs
8	Ii-Vi Optoelectronic Devices Inc.	Warren	Computers and Electronic Products	9.2K lbs
9	Fancyheat Corp	Somerset	Chemicals	6.5K lbs
10	Ortho-Clinical Diagnostics	Raritan	Chemicals	3.7K lbs
11	Fisher Scientific Co. L.L.C.	Bridgewater	Chemicals	3.1K lbs
12	Symrise Inc	Branchburg	Food	3.0K lbs
13	Braddock Heat Treating Inc	Bridgewater	Fabricated Metals	2.6K lbs
14	Emd Performance Materials Corp	Somerville	Chemicals	1.5K lbs
15	Roche Molecular Systems Inc	Branchburg	Chemicals	1.4K lbs
16	Cyalume Specialty Products	Bound Brook	Chemicals	1.2K lbs
17	Ii-Vi Advanced Materials Hillsborough	Hillsborough	Nonmetallic Mineral Product	575 lbs
18	Rathgibson North Branch	North Branch	Primary Metals	64 lbs
19	Komline-Sanderson Corp	Peapack	Machinery	42 lbs
20	Air Liquide Advanced Materials Inc	Branchburg	Chemicals	15 lbs
21	Polymer Molded Products LLC	Bound Brook	Plastics and Rubber	14 lbs
22	Industrial Tube Corp	Hillsborough	Primary Metals	10 lbs
23	Ethicon	Somerville	Computers and Electronic Products	0 lbs
24	Agilex Flavors & Fragrances	Somerset	Chemicals	0 lbs
25	Griffith Allied Trucking Plant	Hillsborough	Other	0 lbs

Cities in Somerset (13)

Warren

Pop: -

1 facilities · 0 water

Peapack

Pop: -

1 facilities · 0 water

Hillsborough

Pop: -

4 facilities · 0 water

Bound Brook

Pop: -

2 facilities · 3 water

Bridgewater

Pop: -

3 facilities · 1 water

Raritan

Pop: -

1 facilities · 0 water

Somerset

Pop: -

6 facilities · 1 water

North Branch

Pop: -

1 facilities · 0 water

Branchburg

Pop: -

3 facilities · 0 water

Somerville

Pop: -

3 facilities · 0 water

Montgomery Township

Pop: -

0 facilities · 0 water

Rocky Hill Borough

Pop: -

0 facilities · 0 water

Manville

Pop: -

0 facilities · 0 water

Frequently Asked Questions

What is the environmental risk level in Somerset, New Jersey? ▼

Somerset, NJ has an environmental risk score of 40/100 (Moderate Risk), based on 25 TRI facilities, 0 Superfund sites, and 10 water systems on record. 2 water systems have health-based violations. Source: EPA TRI, SDWIS, and Superfund NPL.

Are there Superfund sites in Somerset? ▼

No Superfund National Priorities List (NPL) sites are currently registered in Somerset, NJ in the EPA database.

How many toxic release facilities are in Somerset? ▼

Somerset, NJ has 25 TRI-reporting facilities on record with the EPA Toxic Release Inventory, with a combined total of 482.8K lbs in reported toxic releases. TRI facilities self-report annual chemical release data to the EPA.

What is the air quality in Somerset? ▼

Air quality monitoring data (EPA AQS) is not available for Somerset, NJ. This may indicate no EPA monitoring stations are located in the county. For regional air quality data, see the state environmental profile or visit EPA's AirNow.gov.

Is the drinking water safe in Somerset? ▼

Somerset, NJ has 10 EPA-regulated water systems. 2 systems have reported health-based violations (MCL exceedances). A past violation does not necessarily mean water is currently unsafe. For current water quality, contact your local water utility. Source: EPA SDWIS.

What environmental agencies cover Somerset? ▼

Environmental compliance in Somerset, New Jersey is overseen by the U.S. Environmental Protection Agency (EPA) at the federal level and the New Jersey state environmental agency. Facilities report to the EPA Toxic Release Inventory, water systems are regulated under the Safe Drinking Water Act, and contaminated sites are managed under the Superfund program. Contact your state environmental agency for local concerns.

What does this county environmental profile show?

This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.

Related Guides

Understanding EPA Data

How EPA collects and publishes environmental data

Environmental Justice

Who lives near polluters and environmental hazards

How to Check Environmental Quality

Step-by-step guide to checking your local environment

Read our methodology - how this data is sourced, computed, and verified.

Browse all → | Rankings →

Data sourced from U.S. EPA environmental datasets. See our methodology for details. Retrieved and formatted by PlainEnviro Editorial