State Hub
New Jersey Water Quality
361
Utilities in database
8.9M
Residents served
20%
On private wells
3
Key contaminants tracked
Drinking Water in New Jersey
New Jersey has 361 community water systems serving approximately 8.9 million residents. Primary water sources include groundwater. The most commonly reported contaminants include disinfection byproducts, lead, arsenic. 20% of New Jersey residents rely on private wells. DEP holds primary enforcement authority under the Safe Drinking Water Act.
Utilities in New Jersey
226–250 of 361Mine Hill Twp Water Dept
NJ1420001 · 4,300 served
Nj American Water - Egg Harbor City
NJ0107001 · 4,300 served
Barnegat Light Water Dep
NJ1501001 · 4,148 served
Ho Ho Kus Water Dept
NJ0228001 · 4,060 served
Mountain Lakes Water Dep
NJ1425001 · 4,012 served
Cape May Point Boro Wate
NJ0503001 · 4,000 served
Veolia Water New Jersey Lambertville
NJ1017001 · 3,960 served
Stanhope W Dept
NJ1919001 · 3,730 served
Mt Olive Village Green Water System
NJ1427007 · 3,600 served
Pemberton Township Water - Lake Valley
NJ0329003 · 3,500 served
Nj American Water - New Egypt
NJ1523003 · 3,495 served
Washington Twp Mua-hager
NJ1438003 · 3,458 served
Hamburg Board of Public
NJ1909001 · 3,382 served
Netcong Water Dept
NJ1428001 · 3,342 served
High Bridge W Dept
NJ1014001 · 3,300 served
Ocean Gate Water Dept
NJ1521001 · 3,200 served
National Park Water Department
NJ0812001 · 3,144 served
Upper Deerfield Twp Water Dept
NJ0613004 · 3,100 served
Fayson Lakes Water Company Inc
NJ1415001 · 3,010 served
Woodbury Heights W Utili
NJ0823001 · 3,008 served
Lake Como Water Dept
NJ1347001 · 3,000 served
Jbmdl - Lakehurst
NJ1511010 · 2,903 served
Nj American Water - Belvidere
NJ2103001 · 2,854 served
Riverdale Boro Water Dep
NJ1433001 · 2,850 served
Swedesboro Water Department
NJ0817001 · 2,824 served
Key Contaminant Concerns in New Jersey
Lead
Lead is a naturally occurring heavy metal that was widely used in plumbing infrastructure until it was banned for new installations in 1986. An estimated 9.2 million lead service lines still connect homes to public water mains across the United States, along with millions of homes with lead solder in their internal plumbing.
DBPs
When utilities add chlorine to water to kill pathogens, it reacts with dissolved organic matter — leaves, algae, soil — to produce disinfection byproducts (DBPs). Over 600 DBPs have been identified. The EPA regulates two groups: total trihalomethanes (TTHMs, including chloroform) and haloacetic acids (HAA5). DBP levels tend to be highest in surface water systems and in warm months when organic matter is elevated.
Arsenic
Arsenic (As) occurs naturally in rock and soil, dissolving into groundwater through natural weathering processes. Inorganic arsenic — the form found in drinking water — is a known human carcinogen. The western United States has particularly arsenic-rich geological formations, but elevated levels have been found in 48 states. Arsenic is tasteless and odorless.
New Jersey Water FAQs
Quick Links
Data source: Utility data from EPA SDWIS. 361 active community water systems ingested. CCR contaminant data ingestion in progress.
Last updated: 2026-04-18