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
301–325 of 361Veolia Water Nj-bald Eagle Village
NJ1615018 · 1,258 served
Lake Lenape Water Co
NJ1902003 · 1,250 served
Long Beach Twp High Bar Harbor
NJ1517006 · 1,230 served
Lawrenceville School
NJ1107001 · 1,200 served
Us Naval Weapons Station
NJ1309001 · 1,200 served
Stillwater Water District 1
NJ1920001 · 1,200 served
Waterford Township Water Dept.
NJ0435003 · 1,184 served
Passaic Valley W C High Crest
NJ1615003 · 1,132 served
Sisters of Charity of Se
NJ1422001 · 1,100 served
Brookwood Musconetcong River Poa
NJ1904001 · 1,087 served
Nj American Water - Strathmere
NJ0511001 · 1,085 served
Morris Chase/morris Hunt Pcws
NJ1427018 · 1,080 served
Mount Arlington Dpw Kadel Sys
NJ1426002 · 1,053 served
Aqua Nj - Wallkill
NJ1911001 · 1,050 served
Lake Tamarack W Co
NJ1911003 · 1,000 served
Edna Mahan Correctional
NJ1025001 · 940 served
Aqua Nj - Califon
NJ1004001 · 936 served
Nj American Water - Sunbury
NJ0329006 · 888 served
Roosevelt Water Dept
NJ1341001 · 880 served
Mercer County Correctional Center
NJ1106002 · 860 served
Nj American Water - Bridgeport
NJ0809001 · 855 served
Nj American Water - West Jersey
NJ1427009 · 837 served
Veolia Water New Jersey Hampton
NJ1910003 · 814 served
Long Beach Twp North Beach
NJ1517003 · 800 served
Wrightstown Mua
NJ0340001 · 800 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.
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Data source: Utility data from EPA SDWIS. 361 active community water systems ingested. CCR contaminant data ingestion in progress.
Last updated: 2026-04-18