Public water system · NJ1806305

Active

Duke Island Park

At a glance

Duke Island Park (PWSID NJ1806305) is an active transient non-community water system in Somerset County, New Jersey. It reports serving 1,506 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2022.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

1,506

Service connections

Primary source

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDNJ1806305

System typeTransient non-community water system

Activity statusActive

Population served1,506

Service connections1

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyNJ state drinking water program

City servedBridgewater Twp.-1806

StateNew Jersey

ZIP—

CountySomerset County

How does Duke Island Park compare with other water systems in Somerset County?

By EPA's size categories, Duke Island Park is a small system (501 to 3,300 people). Somerset County has 91 active public water systems, and Duke Island Park is the 2nd-largest of them by population served. Its population served is about 89% above the county average of 797 people per system, and accounts for 2.1% of the 72,559 people reported by systems filed under the county. Across New Jersey, the 3,496 active systems average 2,750 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Duke Island Park is about 10 times that figure.

What does “transient non-community water system” mean?

A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. New Jersey has 2,277 active transient non-community water systems, 65% of the state's 3,496 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 3,313 New Jersey systems (95%) list groundwater as their primary source.

Who owns and regulates Duke Island Park?

EPA lists Duke Island Park as owned by a local government. The NJ state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 20 of the 91 active systems in Somerset County (22%) are also owned by a local government.

Does Duke Island Park have drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2022. The violations listed here began between June 2009 and July 2022. By type: 5 monitoring and reporting, 3 reporting, 3 monitoring and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Revised Total Coliform Rule (6 of them). EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.

Began	Violation	Contaminant or rule	Health-based	Status
2022-07-11	ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B	Revised Total Coliform Rulecode 8000	No	Resolved
2022-06-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2022-04-11	ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B	Revised Total Coliform Rulecode 8000	No	Resolved
2022-01-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2019-07-11	ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B	Revised Total Coliform Rulecode 8000	No	Resolved
2019-06-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2015-08-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2015-01-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2012-07-17	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	E. colicode 3014	No	Resolved
2011-07-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
2009-06-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2009-06-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21	Total coliform bacteria (TCR)code 3100	Yes	Resolved

The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.

Duke Island Park: frequently asked questions

Who runs Duke Island Park?

Duke Island Park (PWSID NJ1806305) is a transient non-community water system owned by a local government. It is regulated by the NJ state drinking water program.

How many people does Duke Island Park serve?

Duke Island Park reports serving 1,506 people through 1 service connection in Somerset County, New Jersey.

Where does Duke Island Park get its water?

EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.

Does Duke Island Park have any drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2022. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.

Is Duke Island Park's water safe to drink?

AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2022. For current results, consult EPA ECHO, or the NJ state drinking water program.

Where can I find Duke Island Park's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Duke Island Park is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.

Other water systems in Somerset County

Water system	County	Population served	Type	Source
Franklin Township Dept of Public Works	Somerset	57,150	Community	Purchased surface water
Dewitt Cabin and Pool	Somerset	805	Transient non-community	Groundwater
Far Hills Country Day School	Somerset	700	Non-transient non-community	Groundwater
Rocky Hill W Dept	Somerset	687	Community	Groundwater
Hillsborough Board of Education	Somerset	540	Non-transient non-community	Groundwater
Fiddlers Elbow Golf Course	Somerset	500	Non-transient non-community	Groundwater

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About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Duke Island Park, PWSID NJ1806305, New Jersey”, https://aquacensus.com/water-systems/new-jersey/duke-island-park-nj1806305 (data as of October 1, 2026).