Public water system · NJ2106308
ActiveInhouse
At a glance
Inhouse (PWSID NJ2106308) is an active transient non-community water system in Warren County, New Jersey. It reports serving 102 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 7 violations for this system; 1 is health-based, and the most recent began in April 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
102
Service connections
2
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Inhouse compare with other water systems in Warren County?
By EPA's size categories, Inhouse is a very small system (500 people or fewer). Warren County has 219 active public water systems. Its population served is well below the county average of 1,491 people per system, and accounts for less than 0.1% of the 326,592 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 Inhouse is about 29% 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 Inhouse?
EPA lists Inhouse 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. 177 of the 219 active systems in Warren County (81%) are also privately owned.
Does Inhouse have drinking water violations?
EPA's records list 7 violations for this system; 1 is health-based, and the most recent began in April 2025. The violations listed here began between January 1992 and April 2025. By type: 4 monitoring and reporting, 1 reporting, 1 monitoring and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 3 as archived, 3 as resolved and 1 as unaddressed. 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. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-04-11 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Unaddressed |
| 2025-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 1998-10-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1998-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1998-07-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1992-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1992-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 7 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.
Inhouse: frequently asked questions
Who runs Inhouse?
Inhouse (PWSID NJ2106308) is a transient non-community water system privately owned. It is regulated by the NJ state drinking water program.
How many people does Inhouse serve?
Inhouse reports serving 102 people through 2 service connections in Warren County, New Jersey.
Where does Inhouse 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 Inhouse have any drinking water violations?
EPA's records list 7 violations for this system; 1 is health-based, and the most recent began in April 2025. 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 Inhouse'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 7 violations for this system; 1 is health-based, and the most recent began in April 2025. For current results, consult EPA ECHO, or the NJ state drinking water program.
Where can I find Inhouse's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Inhouse 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 Warren County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Nj American Water - Short Hills | Warren + 6 more | 217,230 | Community | Surface water |
| Aqua Nj - Phillipsburg | Warren | 26,686 | Community | Groundwater under influence of surface water |
| Hackettstown Mua | Warren | 22,000 | Community | Groundwater |
| Nj American Water - Washington/Oxford | Warren | 10,719 | Community | Groundwater |
| Allamuchy Twp Water & Sewer | Warren | 5,423 | Community | Groundwater |
| Nj American Water - Belvidere | Warren | 2,854 | 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, “Inhouse, PWSID NJ2106308, New Jersey”, https://aquacensus.com/water-systems/new-jersey/inhouse-nj2106308 (data as of October 1, 2026).