Public water system · NJ1101304
ActivePrinceton Rd Professiona
At a glance
Princeton Rd Professiona (PWSID NJ1101304) is an active transient non-community water system in Mercer County, New Jersey. It reports serving 165 people through 4 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 4 violations for this system; none is health-based, and the most recent began in April 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
165
Service connections
4
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Princeton Rd Professiona compare with other water systems in Mercer County?
By EPA's size categories, Princeton Rd Professiona 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 Princeton Rd Professiona is about 15% above 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 Princeton Rd Professiona?
EPA lists Princeton Rd Professiona 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 Princeton Rd Professiona have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in April 2019. The violations listed here began between January 1980 and April 2019. By type: 2 reporting and 2 monitoring and reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (2 of them). EPA lists 2 as resolved and 2 as archived. 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. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2019-04-11 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-04-11 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 1982-03-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 1980-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
All 4 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.
Princeton Rd Professiona: frequently asked questions
Who runs Princeton Rd Professiona?
Princeton Rd Professiona (PWSID NJ1101304) is a transient non-community water system privately owned. It is regulated by the NJ state drinking water program.
How many people does Princeton Rd Professiona serve?
Princeton Rd Professiona reports serving 165 people through 4 service connections in Mercer County, New Jersey.
Where does Princeton Rd Professiona 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 Princeton Rd Professiona have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in April 2019. 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 Princeton Rd Professiona'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. EPA's records list 4 violations for this system; none is health-based, and the most recent began in April 2019. For current results, consult EPA ECHO, or the NJ state drinking water program.
Where can I find Princeton Rd Professiona's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Princeton Rd Professiona 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, “Princeton Rd Professiona, PWSID NJ1101304, New Jersey”, https://aquacensus.com/water-systems/new-jersey/princeton-rd-professiona-nj1101304 (data as of October 1, 2026).