Public water system · WI4201425
ActiveRosendale Dairy LLC South Parlor
At a glance
Rosendale Dairy LLC South Parlor (PWSID WI4201425) is an active non-transient non-community water system in Fond du Lac County, Wisconsin. It reports serving 75 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2011.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
75
Service connections
2
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Rosendale Dairy LLC South Parlor compare with other water systems in Fond du Lac County?
By EPA's size categories, Rosendale Dairy LLC South Parlor 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 non-transient non-community water system reports serving 430 people, so Rosendale Dairy LLC South Parlor 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 Rosendale Dairy LLC South Parlor?
EPA lists Rosendale Dairy LLC South Parlor 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. 162 of the 207 active systems in Fond du Lac County (78%) are also privately owned.
Does Rosendale Dairy LLC South Parlor have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2011. By type: 1 monitoring and reporting. The contaminant or rule involved is Lead and Copper Rule. EPA lists 1 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 |
|---|---|---|---|---|
| 2011-10-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
The one violation in EPA's records.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.
Rosendale Dairy LLC South Parlor: frequently asked questions
Who runs Rosendale Dairy LLC South Parlor?
Rosendale Dairy LLC South Parlor (PWSID WI4201425) is a non-transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Rosendale Dairy LLC South Parlor serve?
Rosendale Dairy LLC South Parlor reports serving 75 people through 2 service connections in Fond du Lac County, Wisconsin.
Where does Rosendale Dairy LLC South Parlor 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 Rosendale Dairy LLC South Parlor have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2011. 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 Rosendale Dairy LLC South Parlor'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 one violation for this system; it is not health-based, and the most recent began in October 2011. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Rosendale Dairy LLC South Parlor's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Rosendale Dairy LLC South Parlor 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 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, “Rosendale Dairy LLC South Parlor, PWSID WI4201425, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/rosendale-dairy-llc-south-parlor-wi4201425 (data as of October 1, 2026).