Public water system · WI7372480
ActiveMosinee East System
At a glance
Mosinee East System (PWSID WI7372480) is an active community water system in Marathon County, Wisconsin. It reports serving 1,046 people through 387 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,046
Service connections
387
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Mosinee East System compare with other water systems in Marathon County?
By EPA's size categories, Mosinee East System is a small system (501 to 3,300 people). Marathon County has 196 active public water systems. Its population served is about twice the county average of 528 people per system, and accounts for 1% of the 103,490 people reported by systems filed under the county. Across Wisconsin, the 11,056 active systems average 469 people each. Nationally, the average active community water system reports serving 6,703 people, so Mosinee East System is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Wisconsin has 1,053 active community water systems, 9.5% 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 Mosinee East System?
EPA lists Mosinee East System as owned by a local 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. 43 of the 196 active systems in Marathon County (22%) are also owned by a local government.
Does Mosinee East System 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 Mosinee East System. For the latest compliance status, check EPA ECHO for current compliance history.
Mosinee East System: frequently asked questions
Who runs Mosinee East System?
Mosinee East System (PWSID WI7372480) is a community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Mosinee East System serve?
Mosinee East System reports serving 1,046 people through 387 service connections in Marathon County, Wisconsin.
Where does Mosinee East System 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 Mosinee East System have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Mosinee East System'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 Safe Drinking Water Act records list no violations for this system. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.
Where can I find Mosinee East System's water quality report?
As a community water system, Mosinee East System must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Marathon County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Wausau Waterworks | Marathon | 39,994 | Community | Groundwater |
| Weston Municipal Utilities | Marathon | 16,000 | Community | Groundwater |
| Kronenwetter Water & Sewer Utility | Marathon | 6,931 | Community | Groundwater |
| Rib Mountain Water Utility | Marathon | 6,398 | Community | Groundwater |
| Mosinee Waterworks | Marathon | 3,406 | Community | Groundwater |
| Rothschild Waterworks | Marathon | 3,190 | 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, “Mosinee East System, PWSID WI7372480, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/mosinee-east-system-wi7372480 (data as of October 1, 2026).