Public water system · WI4200537
ActiveWi Dnr Kmsfnu Mauthe Lk Upper 500s
At a glance
Wi Dnr Kmsfnu Mauthe Lk Upper 500s (PWSID WI4200537) is an active transient non-community water system in Fond du Lac County, Wisconsin. It reports serving 70 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
70
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Wi Dnr Kmsfnu Mauthe Lk Upper 500s compare with other water systems in Fond du Lac County?
By EPA's size categories, Wi Dnr Kmsfnu Mauthe Lk Upper 500s is a very small system (500 people or fewer). Fond du Lac County has 207 active public water systems. Its population served is well below the county average of 421 people per system, and accounts for less than 0.1% of the 87,145 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 Wi Dnr Kmsfnu Mauthe Lk Upper 500s is about half of 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 Wi Dnr Kmsfnu Mauthe Lk Upper 500s?
EPA lists Wi Dnr Kmsfnu Mauthe Lk Upper 500s as owned by a state government. 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. 19 of the 207 active systems in Fond du Lac County (9.2%) are also owned by a state government.
Does Wi Dnr Kmsfnu Mauthe Lk Upper 500s 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 Wi Dnr Kmsfnu Mauthe Lk Upper 500s. For the latest compliance status, check EPA ECHO for current compliance history.
Wi Dnr Kmsfnu Mauthe Lk Upper 500s: frequently asked questions
Who runs Wi Dnr Kmsfnu Mauthe Lk Upper 500s?
Wi Dnr Kmsfnu Mauthe Lk Upper 500s (PWSID WI4200537) is a transient non-community water system owned by a state government. It is regulated by the WI state drinking water program.
How many people does Wi Dnr Kmsfnu Mauthe Lk Upper 500s serve?
Wi Dnr Kmsfnu Mauthe Lk Upper 500s reports serving 70 people through 1 service connection in Fond du Lac County, Wisconsin.
Where does Wi Dnr Kmsfnu Mauthe Lk Upper 500s 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 Wi Dnr Kmsfnu Mauthe Lk Upper 500s have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Wi Dnr Kmsfnu Mauthe Lk Upper 500s' 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 Wi Dnr Kmsfnu Mauthe Lk Upper 500s' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Wi Dnr Kmsfnu Mauthe Lk Upper 500s 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 Fond du Lac County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Fond Du Lac Waterworks | Fond du Lac | 44,678 | Community | Groundwater |
| Ripon Water Utility | Fond du Lac | 7,716 | Community | Groundwater |
| North Fond Du Lac Waterworks | Fond du Lac | 5,414 | Community | Groundwater |
| Campbellsport Waterworks | Fond du Lac | 1,825 | Community | Groundwater |
| Oakfield Waterworks | Fond du Lac | 1,058 | Community | Groundwater |
| Ashwood Grove Edgewater | Fond du Lac | 1,046 | 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, “Wi Dnr Kmsfnu Mauthe Lk Upper 500s, PWSID WI4200537, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/wi-dnr-kmsfnu-mauthe-lk-upper-500s-wi4200537 (data as of October 1, 2026).