Public water system · WI1540579
ActiveCompeer Financial
At a glance
Compeer Financial (PWSID WI1540579) is an active transient non-community water system in Rock County, Wisconsin. It reports serving 33 people through 1 service connection. 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 January 1993.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
33
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Compeer Financial compare with other water systems in Rock County?
By EPA's size categories, Compeer Financial is a very small system (500 people or fewer). Rock County has 156 active public water systems. Its population served is well below the county average of 952 people per system, and accounts for less than 0.1% of the 148,563 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 Compeer Financial is well 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 Compeer Financial?
EPA lists Compeer Financial 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. 126 of the 156 active systems in Rock County (81%) are also privately owned.
Does Compeer Financial have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in January 1993. By type: 1 monitoring and reporting. The contaminant or rule involved is Nitrate. EPA lists 1 as archived. 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 |
|---|---|---|---|---|
| 1993-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
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.
Compeer Financial: frequently asked questions
Who runs Compeer Financial?
Compeer Financial (PWSID WI1540579) is a transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Compeer Financial serve?
Compeer Financial reports serving 33 people through 1 service connection in Rock County, Wisconsin.
Where does Compeer Financial 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 Compeer Financial 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 January 1993. 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 Compeer Financial'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 January 1993. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Compeer Financial's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Compeer Financial 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 Rock County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Janesville Water Utility | Rock | 64,415 | Community | Groundwater |
| Beloit City of | Rock | 36,677 | Community | Groundwater |
| Evansville Waterworks | Rock | 5,703 | Community | Groundwater |
| Milton Waterworks | Rock | 5,588 | Community | Groundwater |
| Edgerton Waterworks | Rock | 5,512 | Community | Groundwater |
| Wi Dot Rest Area 22 Turtle | Rock | 3,005 | 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, “Compeer Financial, PWSID WI1540579, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/compeer-financial-wi1540579 (data as of October 1, 2026).