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Community Water System · PWS NJ1309001

US Naval Weapons Station

Colts Neck, New Jersey 07722 - drinking water served from surface water sources to 1,200 people, tracked in EPA SDWIS and UCMR5.

1,200
People served
50
EPA violations
18
Health-based
Untested
UCMR5 result

The verdict

EPA records 50 drinking-water violations at US Naval Weapons Station, 36% of them health-based - below the New Jersey per-system average.

50
Total EPA violations on record
36%
Health-based (MCL / treatment failure)
1,200
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: US Naval Weapons Station

US Naval Weapons Station is a federal-owned community water system that delivers drinking water to 1,200 residents in Colts Neck, New Jersey (Monmouth County) through 170 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 50 total violations for this system , of which 18 (36%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 29 monitoring and reporting violations are on file. The most recent violation on record dates to 2018.

The most frequently cited contaminant at this system is TTHM, recorded in 18 violations (MCL, health-based). 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%).

US Naval Weapons Station's 50 violations sit below 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
1,200
Total Violations
50
Health-Based Violations
18
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Federal
Connections
170
County
Monmouth
School/Daycare
No
MCL Violations
18
Monitoring Violations
29
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 18 2018
Coliform (TCR) MR 6 2004
TTHM MR 3 2004
Total Haloacetic Acids (HAA5) MR 3 2004
Arsenic MR 3 1985
Nitrate MR 2 1985
Cadmium MR 2 1985
Fluoride MR 2 1985
Selenium MR 2 1985
Mercury MR 2 1985
Chromium MR 2 1985
Barium MR 2 1985

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 US Naval Weapons Station.

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 NJ1309001 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 US Naval Weapons Station 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
2018 TTHM MCL 18 SDWIS / NJ1309001 / 2950
2004 Coliform (TCR) MR 6 SDWIS / NJ1309001 / 3100
2004 TTHM MR 3 SDWIS / NJ1309001 / 2950
2004 Total Haloacetic Acids (HAA5) MR 3 SDWIS / NJ1309001 / 2456
1985 Arsenic MR 3 SDWIS / NJ1309001 / 1005
1985 Nitrate MR 2 SDWIS / NJ1309001 / 1040
1985 Cadmium MR 2 SDWIS / NJ1309001 / 1015
1985 Fluoride MR 2 SDWIS / NJ1309001 / 1025
1985 Selenium MR 2 SDWIS / NJ1309001 / 1045
1985 Mercury MR 2 SDWIS / NJ1309001 / 1035
1985 Chromium MR 2 SDWIS / NJ1309001 / 1020
1985 Barium MR 2 SDWIS / NJ1309001 / 1010

How US Naval Weapons Station Compares

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

Metric US Naval Weapons Station New Jersey avg Federal benchmark
Total violations 50 59.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 18 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 1,200 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 US Naval Weapons Station water safe to drink? ▼
US Naval Weapons Station (PWS ID: NJ1309001) has 50 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,200 people using Surface Water sources.
How many people does US Naval Weapons Station serve? ▼
US Naval Weapons Station serves 1,200 people in Colts Neck, New Jersey. It is a Federal-owned system using Surface Water water sources with 170 service connections.
What type of violations does US Naval Weapons Station have? ▼
US Naval Weapons Station has 50 total violations: 18 health-based violations (MCL exceedances or treatment failures), 29 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in US Naval Weapons Station water? ▼
No PFAS testing data is available for US Naval Weapons Station under the EPA's UCMR5 monitoring program.
What water source does US Naval Weapons Station use? ▼
US Naval Weapons Station uses Surface Water 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.