Public water system · IL3156323
ActiveTrinity Commons
At a glance
Trinity Commons (PWSID IL3156323) is an active transient non-community water system in McHenry County, Illinois. It reports serving 47 people through 32 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
47
Service connections
32
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Trinity Commons compare with other water systems in McHenry County?
By EPA's size categories, Trinity Commons is a very small system (500 people or fewer). McHenry County has 192 active public water systems. Its population served is well below the county average of 1,331 people per system, and accounts for less than 0.1% of the 255,516 people reported by systems filed under the county. Across Illinois, the 3,872 active systems average 3,204 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Trinity Commons is well 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. Illinois has 1,703 active transient non-community water systems, 44% of the state's 3,872 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,808 Illinois systems (73%) list groundwater as their primary source.
Who owns and regulates Trinity Commons?
EPA lists Trinity Commons as privately owned. The IL state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 154 of the 192 active systems in McHenry County (80%) are also privately owned.
Does Trinity Commons have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Trinity Commons. For the latest compliance status, check EPA ECHO for current compliance history.
Trinity Commons: frequently asked questions
Who runs Trinity Commons?
Trinity Commons (PWSID IL3156323) is a transient non-community water system privately owned. It is regulated by the IL state drinking water program.
How many people does Trinity Commons serve?
Trinity Commons reports serving 47 people through 32 service connections in McHenry County, Illinois.
Where does Trinity Commons 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 Trinity Commons have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Trinity Commons' 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 Safe Drinking Water Act records list no violations for this system. For current results, consult EPA ECHO, or the IL state drinking water program.
Where can I find Trinity Commons' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Trinity Commons 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 McHenry County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Crystal Lake | McHenry | 40,661 | Community | Groundwater |
| Algonquin | McHenry | 30,700 | Community | Groundwater |
| Lake in the Hills | McHenry | 28,661 | Community | Groundwater |
| Huntley | McHenry | 28,495 | Community | Groundwater |
| Woodstock | McHenry | 25,630 | Community | Groundwater |
| Mchenry | McHenry | 22,335 | 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, “Trinity Commons, PWSID IL3156323, Illinois”, https://aquacensus.com/water-systems/illinois/trinity-commons-il3156323 (data as of October 1, 2026).