New Jersey
Water quality data from the EPA Safe Drinking Water Information System
Water Systems
14,932
Active public water systems
Population Served
9.55M
Residents with piped water
Lead Violations
249
Systems exceeding 15 ppb
Copper Violations
730
Lead & Copper Rule
Average Lead Level
EPA Action Level: 15 ppb
MCLG (health goal): 0 ppb
Average across 2599 systems with reported lead data.
Violations Detected
979 water systems in New Jersey have reported violations under the Lead and Copper Rule. These utilities are required to notify customers and take corrective action.
Schools & Daycares
1 school or daycare water system identified in this state.
Children are especially vulnerable to lead exposure. Schools are required to test for lead and remediate violations.
Water Systems: Highest Lead Levels
| System Name | City | Population | Lead Level | Status | Sample Date |
|---|---|---|---|---|---|
| POINT PLEASEANT BEACH | 12,000 | 12.80 ppb | OK | 2024-12-31 | |
| DENVILLE | 15,881 | 12.70 ppb | OK | 2023-12-31 | |
| HAWORTH | 792,713 | 11.00 ppb | OK | 2025-12-31 | |
| WALDWICK | 10,208 | 8.48 ppb | OK | 2025-12-31 | |
| RIDGEWOOD | 61,700 | 6.40 ppb | OK | 2025-12-31 | |
| LONGPORT | 10,777 | 6.17 ppb | OK | 2023-12-31 | |
| HOBOKEN | 262,000 | 5.55 ppb | OK | 2025-12-31 | |
| HADDON HEIGHTS | 210,213 | 5.00 ppb | OK | 1995-12-31 | |
| EGG HARBOR TWP | 58,360 | 5.00 ppb | OK | 2005-12-31 | |
| CAMDEN | 27,300 | 5.00 ppb | OK | 1995-12-31 | |
| LAKEWOOD | 17,712 | 5.00 ppb | OK | 1995-12-31 | |
| POMPTON PLAINS | 14,010 | 4.80 ppb | OK | 2025-12-31 | |
| MONTVILLE | 22,000 | 4.69 ppb | OK | 2023-12-31 | |
| CLINTON | 12,500 | 4.60 ppb | OK | 2023-12-31 | |
| KEARNY | 63,000 | 4.50 ppb | OK | 2025-12-31 |
Showing top 15 of 2469 systems with lead data. Action level: 15 ppb.
Systems With Active Violations
These water systems have exceeded EPA limits and must take corrective action.
EDISON · Pop. 35,000
Lead: 1.60 ppb (2023-12-31)
ORANGE · Pop. 30,134
Lead: 0.00 ppb (2025-12-31)
MILLVILLE · Pop. 27,500
Lead: 0.00 ppb (2025-12-31)
RAHWAY · Pop. 27,300
Lead: 0.00 ppb (2025-12-31)
MAHWAH · Pop. 26,777
Lead: 4.38 ppb (2024-12-31)
BRANT BEACH · Pop. 25,295
Lead: 1.20 ppb (2024-12-31)
PENNSAUKEN · Pop. 24,500
Lead: 0.00 ppb (2025-12-31)
BRIDGETON · Pop. 22,770
Lead: 2.90 ppb (2024-12-31)
SPARTA · Pop. 17,625
Lead: 1.19 ppb (2025-12-31)
SOUTH RIVER · Pop. 16,000
Lead: 0.00 ppb (2025-12-31)
DELRAN · Pop. 14,406
Lead: 1.00 ppb (2025-12-31)
HIGHLAND PARK · Pop. 14,000
Lead: 3.38 ppb (2023-12-31)
Water Source Types
Air Quality
GoodAvg AQI
42.6
PM2.5
5.8 µg/m³
Unhealthy Days
4
Primary Pollutant
Ozone
Source: EPA AirNow & American Lung Association 2024 State of the Air. AQI scale: 0–50 Good · 51–100 Moderate · 101–150 Sensitive Groups · 151+ Unhealthy.
PFAS Contamination
High DetectionPFAS (per- and polyfluoroalkyl substances), known as “forever chemicals,” are a group of synthetic chemicals that persist indefinitely in the environment and human body. The EPA set a maximum contaminant level (MCL) of 4 parts per trillion (ppt) for PFOA and PFOS in April 2024. View national PFAS tracker →
Systems Tested
682
PFAS Detected
556
Detection Rate
81.5%
Exceeding MCL (4 ppt)
152(22.3%)
Highest recorded level: 210 ppt (EPA MCL: 4 ppt). EWG: 556 systems with PFAS above proposed limits — highest nationally. Dense industrial history, numerous chemical manufacturers. State has own stricter MCLs for PFOA/PFOS (14 ppt each, pre-EPA rule). 548 systems estimated to exceed federal MCLs (NY Health Dept comparison data)