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Mansfield, NJ Tap Water Quality 2026

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

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

Main Utility: Hackettstown Mua PWSID: NJ2108001 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 1.00 ppb, 7% of the action level and no violations are open. No PFAS was detected.

A

Mansfield earns an A for water quality

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

Lead: 1.00 ppb — 7% of the federal action level
PFAS tested, none detected
54 violations since 2015, 0 health-based
No violations currently open
Mansfield's lead level vs. all New Jersey community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.00 ppb — 7% of the federal action level
✓ Lower lead than 91% of New Jersey utilities
Population Served
4961
~5591 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
54 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
7% of EPA action level
1.00 ppb
Action level: 15 ppb
The 90th-percentile lead result is 1.00 ppb, 7% 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 2024 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2023 Resolved
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2023–2025 Archived
Barium MONITORING AND REPORTING — 2 mg/L 2023–2025 Archived
Cadmium MONITORING AND REPORTING — 0.005 mg/L 2023–2025 Archived
Chromium MONITORING AND REPORTING — 0.1 mg/L 2023–2025 Archived
CYANIDE MONITORING AND REPORTING — 0.2 mg/L 2023–2025 Archived
Fluoride MONITORING AND REPORTING — 4.0 mg/L 2023–2025 Archived
Mercury MONITORING AND REPORTING — 0.002 mg/L 2023–2025 Archived
Nickel MONITORING AND REPORTING — — 2023–2025 Archived
Antimony, Total MONITORING AND REPORTING — 0.006 mg/L 2023–2025 Archived
Beryllium, Total MONITORING AND REPORTING — 0.004 mg/L 2023–2025 Archived
Thallium, Total MONITORING AND REPORTING — 0.002 mg/L 2023–2025 Archived
Selenium MONITORING AND REPORTING — 0.05 mg/L 2023–2025 Archived
Revised Total Coliform Rule REPORTING FAILURE — — 2022 Resolved
Consumer Confidence Rule OTHER — — 2021 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2021 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2021 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2020 Resolved
Radium-228 MONITORING AND REPORTING — — 2020–2025 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2019 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2019 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2018 Resolved
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2018 Resolved
E. COLI MONITORING AND REPORTING — 0 2018 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2018 Resolved
1,2,4-Trichlorobenzene MONITORING AND REPORTING — 0.07 mg/L 2017 Resolved
cis-1,2-Dichloroethylene MONITORING AND REPORTING — 0.07 mg/L 2017 Resolved
Xylenes, Total MONITORING AND REPORTING — 10 mg/L 2017 Resolved
DICHLOROMETHANE MONITORING AND REPORTING — 0.005 mg/L 2017 Resolved
o-Dichlorobenzene MONITORING AND REPORTING — 0.6 mg/L 2017 Resolved
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2017 Resolved
Vinyl chloride MONITORING AND REPORTING — 0.002 mg/L 2017 Resolved
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2017 Resolved
trans-1,2-Dichloroethylene MONITORING AND REPORTING — 0.1 mg/L 2017 Resolved
1,2-Dichloroethane MONITORING AND REPORTING — 0.005 mg/L 2017 Resolved
1,1,1-Trichloroethane MONITORING AND REPORTING — 0.2 mg/L 2017 Resolved
Carbon tetrachloride MONITORING AND REPORTING — 0.005 mg/L 2017 Resolved
1,2-Dichloropropane MONITORING AND REPORTING — 0.005 mg/L 2017 Resolved
Trichloroethylene MONITORING AND REPORTING — 0.005 mg/L 2017 Resolved
1,1,2-Trichloroethane MONITORING AND REPORTING — 0.005 mg/L 2017 Resolved
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2017 Resolved
CHLOROBENZENE MONITORING AND REPORTING — 0.1 mg/L 2017 Resolved
Benzene MONITORING AND REPORTING — 0.005 mg/L 2017 Resolved
Toluene MONITORING AND REPORTING — 1 mg/L 2017 Resolved
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2017 Resolved
Styrene MONITORING AND REPORTING — 0.1 mg/L 2017 Resolved
E. COLI MONITORING AND REPORTING — 0 2017 Resolved
Revised Total Coliform Rule REPORTING FAILURE — — 2016 Unaddressed
Revised Total Coliform Rule MONITORING FAILURE — — 2016 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2015 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2015 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2015 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2015 Resolved
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

54 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 Hackettstown Mua
PWSID NJ2108001
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 4,961
Service connections 5,591
Systems serving this area 4
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Mansfield tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 1.00 ppb, 7% of the action level.
Does Mansfield water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Mansfield? ▼
Hackettstown Mua (PWSID NJ2108001), one of 4 systems serving this area. Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2023-12-05. No significant deficiencies were recorded.

What Should Mansfield Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
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.

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