Public water system · NJ2108001
ActiveHackettstown Mua
At a glance
Hackettstown Mua (PWSID NJ2108001) is an active community water system in Warren County, New Jersey. It reports serving 22,000 people through 5,591 service connections. 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, none is health-based, and the most recent began in July 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
22,000
Service connections
5,591
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Hackettstown Mua compare with other water systems in Warren County?
By EPA's size categories, Hackettstown Mua is a large system (10,001 to 100,000 people). Warren County has 219 active public water systems, and Hackettstown Mua is the 3rd-largest of them by population served. Its population served is about 15 times the county average of 1,491 people per system, and accounts for 6.7% 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 community water system reports serving 6,703 people, so Hackettstown Mua is about 3.3 times that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. New Jersey has 582 active community water systems, 17% 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 Hackettstown Mua?
EPA lists Hackettstown Mua 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. 28 of the 219 active systems in Warren County (13%) are also owned by a local government.
Does Hackettstown Mua have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2024. The violations listed here began between January 2023 and July 2024. By type: 12 monitoring and reporting. The contaminants or rules involved are E. coli, Chlorine, Beryllium and Antimony. EPA lists 10 as archived and 2 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. 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 |
|---|---|---|---|---|
| 2024-07-17 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2023-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Berylliumcode 1075 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Antimonycode 1074 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chromiumcode 1020 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Mercurycode 1035 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Bariumcode 1010 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cyanidecode 1024 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Fluoridecode 1025 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nickelcode 1036 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Thalliumcode 1085 | No | Archived |
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.
Hackettstown Mua: frequently asked questions
Who runs Hackettstown Mua?
Hackettstown Mua (PWSID NJ2108001) is a community water system owned by a local government. It is regulated by the NJ state drinking water program.
How many people does Hackettstown Mua serve?
Hackettstown Mua reports serving 22,000 people through 5,591 service connections in Warren County, New Jersey.
Where does Hackettstown Mua 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 Hackettstown Mua 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 July 2024. 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 Hackettstown Mua'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 July 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the NJ state drinking water program.
Where can I find Hackettstown Mua's water quality report?
As a community water system, Hackettstown Mua must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
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 |
| 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 |
| Alpha Municipal Water Works | Warren | 2,530 | 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, “Hackettstown Mua, PWSID NJ2108001, New Jersey”, https://aquacensus.com/water-systems/new-jersey/hackettstown-mua-nj2108001 (data as of October 1, 2026).