Public water system · WI2671135
ActiveGermantown Mutual Insurance
At a glance
Germantown Mutual Insurance (PWSID WI2671135) is an active non-transient non-community water system in Washington County, Wisconsin. It reports serving 60 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in December 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
60
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Germantown Mutual Insurance compare with other water systems in Washington County?
By EPA's size categories, Germantown Mutual Insurance is a very small system (500 people or fewer). Washington County has 268 active public water systems. Its population served is well below the county average of 496 people per system, and accounts for less than 0.1% of the 132,959 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 Germantown Mutual Insurance 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 Germantown Mutual Insurance?
EPA lists Germantown Mutual Insurance 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. 225 of the 268 active systems in Washington County (84%) are also privately owned.
Does Germantown Mutual Insurance have drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in December 2022. The violations listed here began between September 2013 and December 2022. By type: 1 monitoring and 1 contaminant level above the legal limit. The contaminants or rules involved are Revised Total Coliform Rule and Total coliform bacteria (TCR). EPA lists 2 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 |
|---|---|---|---|---|
| 2022-12-01 | MonitoringMonitoring, Additional Routine (RTCR) · code 3B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2013-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 2 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.
Germantown Mutual Insurance: frequently asked questions
Who runs Germantown Mutual Insurance?
Germantown Mutual Insurance (PWSID WI2671135) is a non-transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Germantown Mutual Insurance serve?
Germantown Mutual Insurance reports serving 60 people through 1 service connection in Washington County, Wisconsin.
Where does Germantown Mutual Insurance 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 Germantown Mutual Insurance have any drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in December 2022. 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 Germantown Mutual Insurance'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 2 violations for this system; 1 is health-based, and the most recent began in December 2022. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Germantown Mutual Insurance's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Germantown Mutual Insurance 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 Washington County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| West Bend Waterworks | Washington | 31,752 | Community | Groundwater |
| Germantown Water Utility | Washington | 20,027 | Community | Groundwater |
| Hartford Waterworks | Washington | 15,805 | Community | Groundwater |
| Jackson Waterworks | Washington | 7,844 | Community | Groundwater |
| Slinger Water Utility | Washington | 5,659 | Community | Groundwater |
| Kewaskum Waterworks | Washington | 4,309 | 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, “Germantown Mutual Insurance, PWSID WI2671135, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/germantown-mutual-insurance-wi2671135 (data as of October 1, 2026).