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Stockton, NJ Tap Water Quality 2026

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

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

Main Utility: Stockton Water Department PWSID: NJ1023001 Updated: 2026 Q2
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1 violation currently open

Lead is 1.20 ppb, 8% of the action level. PFAS has never been sampled at this system.

D

Stockton earns a D for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: 1.20 ppb — 8% of the federal action level
PFAS never sampled at this system
33 violations since 2015, 2 health-based
1 violation currently open
Stockton's lead level vs. all New Jersey community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.20 ppb — 8% of the federal action level
✓ Lower lead than 77% of New Jersey utilities
Population Served
495
~226 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
1
1 open of 33 since 2015

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
8% of EPA action level
1.20 ppb
Action level: 15 ppb
Copper (Cu)
90th percentile of tap samples. SDWIS reports a copper figure only when a system exceeds the action level, so any value here is an exceedance.
115.4% of EPA action level
1,500 ppb
Action level: 1,300 ppb
The 90th-percentile lead result is 1.20 ppb, 8% 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. Copper reached the action level here; a copper figure appears in SDWIS only when a system triggers it.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Consumer Confidence Rule OTHER — — 2025 Unaddressed
Lead and Copper Rule MONITORING AND REPORTING — TT 2025 Unaddressed
Consumer Confidence Rule OTHER — — 2025 Unaddressed
Lead and Copper Rule MONITORING AND REPORTING — TT 2025 Unaddressed
Lead and Copper Rule MONITORING AND REPORTING — TT 2024 Unaddressed
Consumer Confidence Rule OTHER — — 2024 Resolved
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2024 Resolved
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2024 Resolved
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2024 Resolved
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2024 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2024 Unaddressed
TTHM MONITORING AND REPORTING — 0.080 mg/L 2023–2024 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2023–2024 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2023 Resolved
Public Notice OTHER — — 2023 Resolved
Lead and Copper Rule TREATMENT TECHNIQUE — TT 2023 Unaddressed
Lead and Copper Rule MONITORING AND REPORTING — TT 2022 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2022 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2022 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2021 Resolved
Revised Total Coliform Rule REPORTING FAILURE — — 2021 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2021 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2021 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2021 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2020 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2020 Resolved
Lead and Copper Rule TREATMENT TECHNIQUE — TT 2019 Addressed
TTHM MONITORING AND REPORTING — 0.080 mg/L 2019–2020 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 2016 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2015–2016 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2015–2016 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

1 violation remains open, out of 33 recorded since 2015 (2 health-based).

About the Main Water System

Utility Stockton Water Department
PWSID NJ1023001
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 495
Service connections 226
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Stockton tap water safe to drink? ▼
No federal limit is exceeded on record. 1 violation(s) remain open. Lead is 1.20 ppb, 8% of the action level.
Does Stockton water have PFAS? ▼
This system has never been sampled for PFAS. EPA's national monitoring covered systems serving 3,300 people or more, so no results exist — which is not evidence that none is present.
Who supplies water to Stockton? ▼
Stockton Water Department (PWSID NJ1023001). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2022-04-26. Inspectors recorded 2 significant deficiencies.

What Should Stockton 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
Follow the open violation
This system has an unresolved violation. Contact the supplier for its corrective-action schedule.

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