Public water system · NJ1436300
ActiveHopatcong State Park
At a glance
Hopatcong State Park (PWSID NJ1436300) is an active transient non-community water system in Morris County, New Jersey. It reports serving 1,200 people through 11 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,200
Service connections
11
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Hopatcong State Park compare with other water systems in Morris County?
By EPA's size categories, Hopatcong State Park is a small system (501 to 3,300 people). Morris County has 302 active public water systems. Its population served is about 19% below the county average of 1,490 people per system, and accounts for 0.3% of the 449,898 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 Hopatcong State Park is about 8.3 times 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 Hopatcong State Park?
EPA lists Hopatcong State Park as owned by a state 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. 4 of the 302 active systems in Morris County (1.3%) are also owned by a state government.
Does Hopatcong State Park have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2025. The violations listed here began between June 2016 and July 2025. By type: 7 reporting, 4 monitoring and 1 required treatment not met. The contaminant or rule involved most often is Revised Total Coliform Rule (12 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 |
|---|---|---|---|---|
| 2025-07-11 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-11-11 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-05-11 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-05-27 | Required treatment not metTreatment Technique Startup Procedures (RTCR) · code 2D | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2017-04-01 | ReportingReport Startup Procedures Cert Form (RTCR) · code 4C | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-10-11 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-07-11 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-06-11 | 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.
Hopatcong State Park: frequently asked questions
Who runs Hopatcong State Park?
Hopatcong State Park (PWSID NJ1436300) is a transient non-community water system owned by a state government. It is regulated by the NJ state drinking water program.
How many people does Hopatcong State Park serve?
Hopatcong State Park reports serving 1,200 people through 11 service connections in Morris County, New Jersey.
Where does Hopatcong State Park 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 Hopatcong State Park 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 July 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 Hopatcong State Park'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 July 2025. For current results, consult EPA ECHO, or the NJ state drinking water program.
Where can I find Hopatcong State Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Hopatcong State Park 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 Morris County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Southeast Morris County Mua | Morris | 62,349 | Community | Surface water |
| Parsippany-Troy Hills Water Department | Morris | 50,400 | Community | Purchased surface water |
| Dover Water Commission | Morris | 27,806 | Community | Groundwater |
| Montville Twp Mua | Morris | 22,000 | Community | Purchased surface water |
| Denville Twp Water Dept | Morris | 15,881 | Community | Groundwater |
| Madison Water Dept | Morris | 15,820 | 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, “Hopatcong State Park, PWSID NJ1436300, New Jersey”, https://aquacensus.com/water-systems/new-jersey/hopatcong-state-park-nj1436300 (data as of October 1, 2026).