Clinton, NJ Tap Water Quality 2026

Water quality report for Clinton, NJ — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Clinton's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Clinton Water Dept PWSID: NJ1005001 Updated: 2026 Q2
⚠️

PFAS above the federal limit at 5 of 10 sampling points

Lead is 4.60 ppb, 31% of the action level and no violations are open. However, PFAS exceeds the federal limit at 5 of 10 sampling points, running as high as 2.43 times the limit.

C

Clinton earns a C for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 4.60 ppb — 31% of the federal action level
PFAS above the federal limit at 5 of 10 sampling points
51 violations since 2015, 0 health-based
No violations currently open
Clinton's lead level vs. all New Jersey community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 4.60 ppb — 31% of the federal action level
✓ Lower lead than 19% of New Jersey utilities
Population Served
1017
~4600 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
51 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
31% of EPA action level
4.60 ppb
Action level: 15 ppb
The 90th-percentile lead result is 4.60 ppb, 31% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
E. COLI MONITORING AND REPORTING — 0 2025 Unaddressed
E. COLI MONITORING AND REPORTING — 0 2025 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2024 Archived
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2024 Archived
Groundwater Rule MONITORING AND REPORTING — — 2024 Archived
Groundwater Rule MONITORING AND REPORTING — — 2024 Archived
Groundwater Rule MONITORING AND REPORTING — — 2024 Archived
Groundwater Rule MONITORING AND REPORTING — — 2023 Archived
Groundwater Rule MONITORING AND REPORTING — — 2023 Archived
Groundwater Rule MONITORING AND REPORTING — — 2023 Archived
Groundwater Rule MONITORING AND REPORTING — — 2023 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2023 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2023 Resolved
1,2,4-Trichlorobenzene MONITORING AND REPORTING — 0.07 mg/L 2020 Resolved
cis-1,2-Dichloroethylene MONITORING AND REPORTING — 0.07 mg/L 2020 Resolved
Xylenes, Total MONITORING AND REPORTING — 10 mg/L 2020 Resolved
DICHLOROMETHANE MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
o-Dichlorobenzene MONITORING AND REPORTING — 0.6 mg/L 2020 Resolved
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2020 Resolved
Vinyl chloride MONITORING AND REPORTING — 0.002 mg/L 2020 Resolved
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2020 Resolved
trans-1,2-Dichloroethylene MONITORING AND REPORTING — 0.1 mg/L 2020 Resolved
1,2-Dichloroethane MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
1,1,1-Trichloroethane MONITORING AND REPORTING — 0.2 mg/L 2020 Resolved
Carbon tetrachloride MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
1,2-Dichloropropane MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
Trichloroethylene MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
1,1,2-Trichloroethane MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
CHLOROBENZENE MONITORING AND REPORTING — 0.1 mg/L 2020 Resolved
Benzene MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
Toluene MONITORING AND REPORTING — 1 mg/L 2020 Resolved
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2020 Resolved
Styrene MONITORING AND REPORTING — 0.1 mg/L 2020 Resolved
Consumer Confidence Rule OTHER — — 2020 Resolved
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2020–2022 Resolved
Barium MONITORING AND REPORTING — 2 mg/L 2020–2022 Resolved
Cadmium MONITORING AND REPORTING — 0.005 mg/L 2020–2022 Resolved
Chromium MONITORING AND REPORTING — 0.1 mg/L 2020–2022 Resolved
CYANIDE MONITORING AND REPORTING — 0.2 mg/L 2020–2022 Resolved
Fluoride MONITORING AND REPORTING — 4.0 mg/L 2020–2022 Resolved
Mercury MONITORING AND REPORTING — 0.002 mg/L 2020–2022 Resolved
Nickel MONITORING AND REPORTING — — 2020–2022 Resolved
Antimony, Total MONITORING AND REPORTING — 0.006 mg/L 2020–2022 Resolved
Beryllium, Total MONITORING AND REPORTING — 0.004 mg/L 2020–2022 Resolved
Thallium, Total MONITORING AND REPORTING — 0.002 mg/L 2020–2022 Resolved
Selenium MONITORING AND REPORTING — 0.05 mg/L 2020–2022 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2017 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2017 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2017 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2016 Archived
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

51 violations are on record since 2015, of which 0 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Clinton Water Dept
PWSID NJ1005001
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 1,017
Service connections 4,600
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Clinton tap water safe to drink? ▼
It meets most federal standards, but PFAS exceeds the federal limit at 5 of 10 sampling points. No violations are currently open. Lead is 4.60 ppb, 31% of the action level.
Does Clinton water have PFAS? ▼
Yes. PFAS exceeds the federal limit at 5 of 10 sampling points, running as high as 2.43 times the limit. Limits are enforced on a running annual average at each sampling point, not on a single sample.
Who supplies water to Clinton? ▼
Clinton Water Dept (PWSID NJ1005001). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2025-10-08. No significant deficiencies were recorded.

What Should Clinton Residents Do?

1
Consider a reverse-osmosis filter
Reverse osmosis removes more than 95% of PFAS. Standard carbon pitchers do not.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

Nearby Cities in New Jersey

Raritan, Nj Tap Water Quality 2026 Hunterdon Clinton, Nj Tap Water Quality 2026 Hunterdon Readington, Nj Tap Water Quality 2026 Hunterdon Lambertville, Nj Tap Water Quality 2026 Hunterdon Flemington, Nj Tap Water Quality 2026 Hunterdon High Bridge, Nj Tap Water Quality 2026 Hunterdon