Public water system · WI4430637
ActiveWendt Sandbar Resort
At a glance
Wendt Sandbar Resort (PWSID WI4430637) is an active transient non-community water system in Oconto 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 records list 3 violations for this system; none is health-based, and the most recent began in January 2019.
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 Wendt Sandbar Resort compare with other water systems in Oconto County?
By EPA's size categories, Wendt Sandbar Resort is a very small system (500 people or fewer). Oconto County has 202 active public water systems. Its population served is well below the county average of 101 people per system, and accounts for 0.1% 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 transient non-community water system reports serving 144 people, so Wendt Sandbar Resort 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 Wendt Sandbar Resort?
EPA lists Wendt Sandbar Resort 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 Wendt Sandbar Resort have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in January 2019. The violations listed here began between December 2000 and January 2019. By type: 2 monitoring and 1 monitoring and reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (2 of them). EPA lists 3 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 |
|---|---|---|---|---|
| 2019-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2000-12-12 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 3 violations in EPA's records, newest first.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.
Wendt Sandbar Resort: frequently asked questions
Who runs Wendt Sandbar Resort?
Wendt Sandbar Resort (PWSID WI4430637) is a transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Wendt Sandbar Resort serve?
Wendt Sandbar Resort reports serving 25 people through 1 service connection in Oconto County, Wisconsin.
Where does Wendt Sandbar Resort 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 Wendt Sandbar Resort have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in January 2019. 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 Wendt Sandbar Resort'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 3 violations for this system; none is health-based, and the most recent began in January 2019. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Wendt Sandbar Resort's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Wendt Sandbar Resort 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 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, “Wendt Sandbar Resort, PWSID WI4430637, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/wendt-sandbar-resort-wi4430637 (data as of October 1, 2026).