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Community Water System · PWS NJ1023001

Stockton Water Department

Stockton, New Jersey 08559 - drinking water served from groundwater sources to 650 people, tracked in EPA SDWIS and UCMR5.

650
People served
129
EPA violations
10
Health-based
Untested
UCMR5 result

The verdict

EPA records 129 drinking-water violations at Stockton Water Department, 8% of them health-based - above the New Jersey per-system average.

129
Total EPA violations on record
8%
Health-based (MCL / treatment failure)
650
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Stockton Water Department

Stockton Water Department is a local-owned community water system that delivers drinking water to 650 residents in Stockton, New Jersey (Hunterdon County) through 226 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 129 total violations for this system , of which 10 (8%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 101 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 30 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across New Jersey, EPA tracks 3,428 public water systems serving 9,570,926 people, with 204,988 cumulative violations and 22,229 health-based violations on record. About 95% of systems in the state carry at least one violation, and state-wide the average per system is 59.8 violations. Statewide, 208 of 264 UCMR5-tested systems have reported PFAS detections (78.8%).

Stockton Water Department's 129 violations sit above the New Jersey average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
650
Total Violations
129
Health-Based Violations
10
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
226
County
Hunterdon
School/Daycare
No
MCL Violations
3
Monitoring Violations
101
Treatment Tech Violations
7

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 30 2025
TTHM MR 8 2023
Lead and Copper Rule TT 7 2023
ETHYLENE DIBROMIDE MR 6 2024
1,2-DIBROMO-3-CHLOROPROPANE MR 6 2024
Total Haloacetic Acids (HAA5) MR 6 2023
Chlorine MR 5 2021
Consumer Confidence Rule Other 3 2025
Revised Total Coliform Rule MON 3 2021
Coliform (TCR) MCL 3 1994
Nitrate MR 2 1988
Barium MR 2 1988
Public Notice Other 2 2023
Chromium MR 2 1988
Mercury MR 2 1988
Fluoride MR 2 1988
Cadmium MR 2 1988
Selenium MR 2 1988
Arsenic MR 2 1988
Revised Total Coliform Rule RPT 2 2021
DICHLOROMETHANE MR 1 2004
o-Dichlorobenzene MR 1 2004
1,2-Dichloroethane MR 1 2004
1,1,1-Trichloroethane MR 1 2004
Carbon tetrachloride MR 1 2004
Trichloroethylene MR 1 2004
1,1,2-Trichloroethane MR 1 2004
Benzene MR 1 2004
Styrene MR 1 2004
1,2,4-Trichlorobenzene MR 1 2004

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Stockton Water Department.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID NJ1023001 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

New Jersey Drinking Water Authority

NJ DEP, Bureau of Safe Drinking Water is the primacy agency that licenses and inspects Stockton Water Department under EPA-delegated authority.

Open NJ regulator portal

Source: NJ DEP, Bureau of Safe Drinking Water

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 Lead and Copper Rule MR 30 SDWIS / NJ1023001 / 5000
2025 Consumer Confidence Rule Other 3 SDWIS / NJ1023001 / 7000
2024 ETHYLENE DIBROMIDE MR 6 SDWIS / NJ1023001 / 2946
2024 1,2-DIBROMO-3-CHLOROPROPANE MR 6 SDWIS / NJ1023001 / 2931
2023 TTHM MR 8 SDWIS / NJ1023001 / 2950
2023 Lead and Copper Rule TT 7 SDWIS / NJ1023001 / 5000
2023 Total Haloacetic Acids (HAA5) MR 6 SDWIS / NJ1023001 / 2456
2023 Public Notice Other 2 SDWIS / NJ1023001 / 7500
2021 Chlorine MR 5 SDWIS / NJ1023001 / 0999
2021 Revised Total Coliform Rule MON 3 SDWIS / NJ1023001 / 8000
2021 Revised Total Coliform Rule RPT 2 SDWIS / NJ1023001 / 8000
2004 DICHLOROMETHANE MR 1 SDWIS / NJ1023001 / 2964
2004 o-Dichlorobenzene MR 1 SDWIS / NJ1023001 / 2968
2004 1,2-Dichloroethane MR 1 SDWIS / NJ1023001 / 2980
2004 1,1,1-Trichloroethane MR 1 SDWIS / NJ1023001 / 2981

How Stockton Water Department Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Stockton Water Department New Jersey avg Federal benchmark
Total violations 129 59.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 10 6.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 78.8% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 650 2,792 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 3,428 regulated public water systems in New Jersey.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Stockton Water Department water safe to drink? ▼
Stockton Water Department (PWS ID: NJ1023001) has 129 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 650 people using Groundwater sources.
How many people does Stockton Water Department serve? ▼
Stockton Water Department serves 650 people in Stockton, New Jersey. It is a Local-owned system using Groundwater water sources with 226 service connections.
What type of violations does Stockton Water Department have? ▼
Stockton Water Department has 129 total violations: 10 health-based violations (MCL exceedances or treatment failures), 101 monitoring/reporting violations, and 7 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Stockton Water Department water? ▼
No PFAS testing data is available for Stockton Water Department under the EPA's UCMR5 monitoring program.
What water source does Stockton Water Department use? ▼
Stockton Water Department uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.