Public water system · MI2076611
ActiveOntario Trailhead Park
At a glance
Ontario Trailhead Park (PWSID MI2076611) is an active transient non-community water system in Berrien County, Michigan. It reports serving 50 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is not health-based, and the most recent began in July 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
50
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Ontario Trailhead Park compare with other water systems in Berrien County?
By EPA's size categories, Ontario Trailhead Park is a very small system (500 people or fewer). Berrien County has 196 active public water systems. Its population served is well below the county average of 669 people per system, and accounts for less than 0.1% of the 131,038 people reported by systems filed under the county. Across Michigan, the 10,599 active systems average 847 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Ontario Trailhead Park is about 65% 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. Michigan has 7,865 active transient non-community water systems, 74% of the state's 10,599 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 10,214 Michigan systems (96%) list groundwater as their primary source.
Who owns and regulates Ontario Trailhead Park?
EPA lists Ontario Trailhead Park as owned by a local government. The MI state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 24 of the 196 active systems in Berrien County (12%) are also owned by a local government.
Does Ontario Trailhead Park have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in July 2024. By type: 1 monitoring. The contaminant or rule involved is Revised Total Coliform Rule. EPA lists 1 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 |
|---|---|---|---|---|
| 2024-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
The one violation in EPA's records.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.
Ontario Trailhead Park: frequently asked questions
Who runs Ontario Trailhead Park?
Ontario Trailhead Park (PWSID MI2076611) is a transient non-community water system owned by a local government. It is regulated by the MI state drinking water program.
How many people does Ontario Trailhead Park serve?
Ontario Trailhead Park reports serving 50 people through 1 service connection in Berrien County, Michigan.
Where does Ontario Trailhead 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 Ontario Trailhead Park have any drinking water violations?
EPA's records list one violation for this system; it is not 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 Ontario Trailhead 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. EPA's records list one violation for this system; it is not health-based, and the most recent began in July 2024. For current results, consult EPA ECHO, or the MI state drinking water program.
Where can I find Ontario Trailhead Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Ontario Trailhead 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 Berrien County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Southwest Michigan Regional Sanitary Sew | Berrien | 26,780 | Community | Purchased surface water |
| Niles | Berrien | 14,215 | Community | Groundwater |
| Benton Harbor | Berrien | 9,103 | Community | Surface water |
| St Joseph | Berrien | 7,930 | Community | Surface water |
| Benton Charter Township | Berrien | 6,768 | Community | Surface water |
| Buchanan | Berrien | 4,871 | 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, “Ontario Trailhead Park, PWSID MI2076611, Michigan”, https://aquacensus.com/water-systems/michigan/ontario-trailhead-park-mi2076611 (data as of October 1, 2026).