Public water system · WI4200601
ActiveAlto Reformed Church
At a glance
Alto Reformed Church (PWSID WI4200601) is an active transient non-community water system in Fond du Lac County, Wisconsin. It reports serving 502 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 4 violations for this system; all are health-based, and the most recent began in March 2010.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
502
Service connections
2
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Alto Reformed Church compare with other water systems in Fond du Lac County?
By EPA's size categories, Alto Reformed Church is a small system (501 to 3,300 people). Fond du Lac County has 207 active public water systems. Its population served is about 19% above the county average of 421 people per system, and accounts for 0.6% 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 Alto Reformed Church is about 3.5 times 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 Alto Reformed Church?
EPA lists Alto Reformed Church 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 Alto Reformed Church have drinking water violations?
EPA's records list 4 violations for this system; all are health-based, and the most recent began in March 2010. The violations listed here began between July 2006 and March 2010. By type: 4 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 4 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 |
|---|---|---|---|---|
| 2010-03-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2009-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Nitratecode 1040 | Yes | Resolved |
| 2006-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2006-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 4 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.
Alto Reformed Church: frequently asked questions
Who runs Alto Reformed Church?
Alto Reformed Church (PWSID WI4200601) is a transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Alto Reformed Church serve?
Alto Reformed Church reports serving 502 people through 2 service connections in Fond du Lac County, Wisconsin.
Where does Alto Reformed Church 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 Alto Reformed Church have any drinking water violations?
EPA's records list 4 violations for this system; all are health-based, and the most recent began in March 2010. 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 Alto Reformed Church'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 4 violations for this system; all are health-based, and the most recent began in March 2010. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Alto Reformed Church's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Alto Reformed Church 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, “Alto Reformed Church, PWSID WI4200601, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/alto-reformed-church-wi4200601 (data as of October 1, 2026).