Public water system · NJ1106311

Active

Marcos Pizza

At a glance

Marcos Pizza (PWSID NJ1106311) is an active transient non-community water system in Mercer County, New Jersey. It reports serving 104 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2026.

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

Population served

104

Service connections

Primary source

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDNJ1106311

System typeTransient non-community water system

Activity statusActive

Population served104

Service connections1

Primary water sourceGroundwater

Owner typePrivate

Primacy agencyNJ state drinking water program

City servedHopewell Twp.1106-

StateNew Jersey

ZIP—

CountyMercer County

How does Marcos Pizza compare with other water systems in Mercer County?

By EPA's size categories, Marcos Pizza is a very small system (500 people or fewer). Mercer County has 97 active public water systems. Its population served is well below the county average of 3,340 people per system, and accounts for less than 0.1% of the 323,956 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 Marcos Pizza is about 28% below 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 Marcos Pizza?

EPA lists Marcos Pizza as privately owned. 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. 74 of the 97 active systems in Mercer County (76%) are also privately owned.

Does Marcos Pizza have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2026. The violations listed here began between July 2021 and January 2026. By type: 6 reporting, 5 monitoring and 1 monitoring and reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (11 of them). EPA lists 6 as archived, 5 as unaddressed and 1 as resolved. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. 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
2026-01-11	ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B	Revised Total Coliform Rulecode 8000	No	Unaddressed
2025-10-01	ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B	Revised Total Coliform Rulecode 8000	No	Unaddressed
2025-10-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Archived
2025-07-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Archived
2025-04-11	ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B	Revised Total Coliform Rulecode 8000	No	Unaddressed
2025-01-11	ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B	Revised Total Coliform Rulecode 8000	No	Unaddressed
2025-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Archived
2025-01-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Archived
2024-10-11	ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B	Revised Total Coliform Rulecode 8000	No	Unaddressed
2024-10-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Archived
2024-07-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Archived
2021-07-11	ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B	Revised Total Coliform Rulecode 8000	No	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.

Marcos Pizza: frequently asked questions

Who runs Marcos Pizza?

Marcos Pizza (PWSID NJ1106311) is a transient non-community water system privately owned. It is regulated by the NJ state drinking water program.

How many people does Marcos Pizza serve?

Marcos Pizza reports serving 104 people through 1 service connection in Mercer County, New Jersey.

Where does Marcos Pizza 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 Marcos Pizza have any drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2026. 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 Marcos Pizza'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, none is health-based, and the most recent began in January 2026. For current results, consult EPA ECHO, or the NJ state drinking water program.

Where can I find Marcos Pizza's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Marcos Pizza 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 Mercer County

Water system	County	Population served	Type	Source
Trenton Water Works	Mercer	217,000	Community	Surface water
Aqua Nj - Hamilton Square	Mercer	39,128	Community	Purchased surface water
East Windsor Mua	Mercer	25,000	Community	Groundwater
Aqua Nj - Lawrence	Mercer	8,655	Community	Groundwater under influence of surface water
Hightstown Water Department	Mercer	5,400	Community	Groundwater
Pennington Shop-Rite	Mercer	3,663	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, “Marcos Pizza, PWSID NJ1106311, New Jersey”, https://aquacensus.com/water-systems/new-jersey/marcos-pizza-nj1106311 (data as of October 1, 2026).