Public water system · WI4430291
ActiveZahn Farms
At a glance
Zahn Farms (PWSID WI4430291) is an active non-transient non-community water system in Oconto County, Wisconsin. It reports serving 74 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
74
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Zahn Farms compare with other water systems in Oconto County?
By EPA's size categories, Zahn Farms is a very small system (500 people or fewer). Oconto County has 202 active public water systems. Its population served is about 26% below the county average of 101 people per system, and accounts for 0.4% of the 20,322 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 Zahn Farms 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 Zahn Farms?
EPA lists Zahn Farms 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. 170 of the 202 active systems in Oconto County (84%) are also privately owned.
Does Zahn Farms 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 Zahn Farms. For the latest compliance status, check EPA ECHO for current compliance history.
Zahn Farms: frequently asked questions
Who runs Zahn Farms?
Zahn Farms (PWSID WI4430291) is a non-transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Zahn Farms serve?
Zahn Farms reports serving 74 people through 1 service connection in Oconto County, Wisconsin.
Where does Zahn Farms 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 Zahn Farms have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Zahn Farms' 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 Zahn Farms' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Zahn Farms 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 Oconto County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Oconto Waterworks | Oconto | 4,583 | Community | Groundwater |
| Oconto Falls Waterworks | Oconto | 2,892 | Community | Groundwater |
| Gillett Waterworks | Oconto | 1,264 | Community | Groundwater |
| Lena Waterworks | Oconto | 585 | Community | Groundwater |
| Sunnyside Elementary Sch | Oconto | 575 | Non-transient non-community | Groundwater |
| Suring Waterworks | Oconto | 517 | 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, “Zahn Farms, PWSID WI4430291, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/zahn-farms-wi4430291 (data as of October 1, 2026).