Public water system · WI6180302
ActiveFoster Bar
At a glance
Foster Bar (PWSID WI6180302) is an active transient non-community water system in Eau Claire County, Wisconsin. It reports serving 100 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 8 violations for this system; all are health-based, and the most recent began in November 2010.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
100
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Foster Bar compare with other water systems in Eau Claire County?
By EPA's size categories, Foster Bar is a very small system (500 people or fewer). Eau Claire County has 111 active public water systems. Its population served is well below the county average of 834 people per system, and accounts for 0.1% of the 92,606 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 Foster Bar is about 31% below 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 Foster Bar?
EPA lists Foster Bar 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. 90 of the 111 active systems in Eau Claire County (81%) are also privately owned.
Does Foster Bar have drinking water violations?
EPA's records list 8 violations for this system; all are health-based, and the most recent began in November 2010. The violations listed here began between October 1991 and November 2010. By type: 8 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (8 of them). EPA lists 7 as resolved and 1 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2010-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2010-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2008-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2003-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1999-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1999-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1991-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
All 8 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.
Foster Bar: frequently asked questions
Who runs Foster Bar?
Foster Bar (PWSID WI6180302) is a transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Foster Bar serve?
Foster Bar reports serving 100 people through 1 service connection in Eau Claire County, Wisconsin.
Where does Foster Bar 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 Foster Bar have any drinking water violations?
EPA's records list 8 violations for this system; all are health-based, and the most recent began in November 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 Foster Bar'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 8 violations for this system; all are health-based, and the most recent began in November 2010. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Foster Bar's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Foster Bar 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 Eau Claire County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Eau Claire Waterworks | Eau Claire | 70,587 | Community | Groundwater |
| Altoona Waterworks | Eau Claire | 9,627 | Community | Groundwater |
| Augusta Waterworks | Eau Claire | 1,450 | Community | Groundwater |
| Fall Creek Waterworks | Eau Claire | 1,269 | Community | Groundwater |
| Hillcrest Estates MHP | Eau Claire | 850 | Community | Groundwater |
| Menards Old Mill Center | Eau Claire | 730 | Non-transient non-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, “Foster Bar, PWSID WI6180302, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/foster-bar-wi6180302 (data as of October 1, 2026).