Public water system · WI4240206
ActiveTrillium Hill Farm
At a glance
Trillium Hill Farm (PWSID WI4240206) is an active non-transient non-community water system in Green Lake County, Wisconsin. It reports serving 49 people through 1 service connection. 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
49
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Trillium Hill Farm compare with other water systems in Green Lake County?
By EPA's size categories, Trillium Hill Farm is a very small system (500 people or fewer). Green Lake County has 70 active public water systems. Its population served is well below the county average of 211 people per system, and accounts for 0.3% of the 14,772 people reported by systems filed under the county. Across Wisconsin, the 11,056 active systems average 469 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Trillium Hill Farm is well 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. Wisconsin has 891 active non-transient non-community water systems, 8.1% of the state's 11,056 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 10,978 Wisconsin systems (99%) list groundwater as their primary source.
Who owns and regulates Trillium Hill Farm?
EPA lists Trillium Hill Farm as privately owned. The WI state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 63 of the 70 active systems in Green Lake County (90%) are also privately owned.
Does Trillium Hill Farm 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 Trillium Hill Farm. For the latest compliance status, check EPA ECHO for current compliance history.
Trillium Hill Farm: frequently asked questions
Who runs Trillium Hill Farm?
Trillium Hill Farm (PWSID WI4240206) is a non-transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Trillium Hill Farm serve?
Trillium Hill Farm reports serving 49 people through 1 service connection in Green Lake County, Wisconsin.
Where does Trillium Hill Farm 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 Trillium Hill Farm have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Trillium Hill Farm'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 Safe Drinking Water Act records list no violations for this system. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Trillium Hill Farm's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Trillium Hill Farm 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 Green Lake County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Berlin Waterworks | Green Lake | 5,524 | Community | Groundwater |
| Markesan Waterworks | Green Lake | 1,365 | Community | Groundwater |
| Princeton Waterworks | Green Lake | 1,166 | Community | Groundwater |
| Green Lake Waterworks | Green Lake | 1,002 | Community | Groundwater |
| Amer Baptist Assem Main | Green Lake | 640 | Non-transient non-community | Groundwater |
| All Saints Catholic Parish | Green Lake | 302 | Non-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, “Trillium Hill Farm, PWSID WI4240206, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/trillium-hill-farm-wi4240206 (data as of October 1, 2026).