Public water system · WI7440558
ActiveWillows End
At a glance
Willows End (PWSID WI7440558) is an active transient non-community water system in Oneida County, Wisconsin. It reports serving 25 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
25
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Willows End compare with other water systems in Oneida County?
By EPA's size categories, Willows End is a very small system (500 people or fewer). Oneida County has 345 active public water systems. Its population served is well below the county average of 117 people per system, and accounts for less than 0.1% of the 40,498 people reported by systems filed under the county. Across Wisconsin, the 11,056 active systems average 469 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Willows End 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. Wisconsin has 9,112 active transient non-community water systems, 82% 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 Willows End?
EPA lists Willows End 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. 299 of the 345 active systems in Oneida County (87%) are also privately owned.
Does Willows End 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 Willows End. For the latest compliance status, check EPA ECHO for current compliance history.
Willows End: frequently asked questions
Who runs Willows End?
Willows End (PWSID WI7440558) is a transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Willows End serve?
Willows End reports serving 25 people through 1 service connection in Oneida County, Wisconsin.
Where does Willows End 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 Willows End have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Willows End'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 Willows End's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Willows End 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 Oneida County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Rhinelander Water & Wastewater | Oneida | 8,234 | Community | Groundwater |
| Lakeland Sanitary Dist 1 | Oneida | 2,381 | Community | Groundwater |
| Minocqua Hazelhurst Elem Sch | Oneida | 650 | Non-transient non-community | Groundwater |
| Three Lakes Sanitary District | Oneida | 500 | Community | Groundwater |
| Scouting America Camp Tesomas Program Center and Dining Hall | Oneida | 500 | Transient non-community | Groundwater |
| Wi Dnr Clear Lk Cmpgd 10 | Oneida | 450 | 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, “Willows End, PWSID WI7440558, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/willows-end-wi7440558 (data as of October 1, 2026).