Public water system · NJ1022338
ActiveMill Road Dairy
At a glance
Mill Road Dairy (PWSID NJ1022338) is an active non-transient non-community water system in Hunterdon County, New Jersey. It reports serving 270 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in December 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
270
Service connections
2
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Mill Road Dairy compare with other water systems in Hunterdon County?
By EPA's size categories, Mill Road Dairy is a very small system (500 people or fewer). Hunterdon County has 293 active public water systems. Its population served is about 14% below the county average of 313 people per system, and accounts for 0.3% of the 91,772 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 non-transient non-community water system reports serving 430 people, so Mill Road Dairy is about 37% below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. New Jersey has 637 active non-transient non-community water systems, 18% 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 Mill Road Dairy?
EPA lists Mill Road Dairy 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. 229 of the 293 active systems in Hunterdon County (78%) are also privately owned.
Does Mill Road Dairy have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in December 2020. The violations listed here began between November 2008 and December 2020. By type: 11 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Lead and Copper Rule (2 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 |
|---|---|---|---|---|
| 2020-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2020-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2020-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2019-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2019-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2019-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylene dibromide (EDB)code 2946 | No | Resolved |
| 2019-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dibromo-3-chloropropane (DBCP)code 2931 | No | Resolved |
| 2019-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylene dibromide (EDB)code 2946 | No | Resolved |
| 2019-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dibromo-3-chloropropane (DBCP)code 2931 | No | Resolved |
| 2018-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2016-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2008-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | 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.
Mill Road Dairy: frequently asked questions
Who runs Mill Road Dairy?
Mill Road Dairy (PWSID NJ1022338) is a non-transient non-community water system privately owned. It is regulated by the NJ state drinking water program.
How many people does Mill Road Dairy serve?
Mill Road Dairy reports serving 270 people through 2 service connections in Hunterdon County, New Jersey.
Where does Mill Road Dairy 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 Mill Road Dairy 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 December 2020. 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 Mill Road Dairy'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 December 2020. For current results, consult EPA ECHO, or the NJ state drinking water program.
Where can I find Mill Road Dairy's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Mill Road Dairy is a non-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 Hunterdon County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Clinton Water Dept | Hunterdon | 12,500 | Community | Groundwater |
| Flemington Water Department | Hunterdon | 4,581 | Community | Groundwater |
| Veolia Water New Jersey Lambertville | Hunterdon | 3,960 | Community | Surface water |
| Washington Twp Mua-Hager | Hunterdon + 1 more | 3,458 | Community | Groundwater |
| High Bridge W Dept | Hunterdon | 3,300 | Community | Groundwater |
| State of Nj Spruce Run Recreat | Hunterdon | 2,800 | 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, “Mill Road Dairy, PWSID NJ1022338, New Jersey”, https://aquacensus.com/water-systems/new-jersey/mill-road-dairy-nj1022338 (data as of October 1, 2026).