Public water system · WI6420895
ActiveWi Dot Sparta Swef 54
At a glance
Wi Dot Sparta Swef 54 (PWSID WI6420895) is an active transient non-community water system in Monroe County, Wisconsin. It reports serving 28 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
28
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Wi Dot Sparta Swef 54 compare with other water systems in Monroe County?
By EPA's size categories, Wi Dot Sparta Swef 54 is a very small system (500 people or fewer). Monroe County has 102 active public water systems. Its population served is well below the county average of 385 people per system, and accounts for less than 0.1% of the 39,274 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 Wi Dot Sparta Swef 54 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 Wi Dot Sparta Swef 54?
EPA lists Wi Dot Sparta Swef 54 as owned by a state 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. 10 of the 102 active systems in Monroe County (9.8%) are also owned by a state government.
Does Wi Dot Sparta Swef 54 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 2025. By type: 1 monitoring. The contaminant or rule involved is Revised Total Coliform Rule. EPA lists 1 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 |
|---|---|---|---|---|
| 2025-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
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.
Wi Dot Sparta Swef 54: frequently asked questions
Who runs Wi Dot Sparta Swef 54?
Wi Dot Sparta Swef 54 (PWSID WI6420895) is a transient non-community water system owned by a state government. It is regulated by the WI state drinking water program.
How many people does Wi Dot Sparta Swef 54 serve?
Wi Dot Sparta Swef 54 reports serving 28 people through 1 service connection in Monroe County, Wisconsin.
Where does Wi Dot Sparta Swef 54 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 Wi Dot Sparta Swef 54 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 2025. 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 Wi Dot Sparta Swef 54'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 2025. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Wi Dot Sparta Swef 54's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Wi Dot Sparta Swef 54 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 Monroe County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Sparta Waterworks | Monroe | 10,025 | Community | Groundwater |
| Fort Mccoy North Post | Monroe | 10,000 | Community | Groundwater |
| Tomah Waterworks | Monroe | 9,192 | Community | Groundwater |
| Cashton Waterworks | Monroe | 1,120 | Community | Groundwater |
| Brookwood High School | Monroe | 700 | Non-transient non-community | Groundwater |
| Norwalk Waterworks | Monroe | 653 | 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, “Wi Dot Sparta Swef 54, PWSID WI6420895, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/wi-dot-sparta-swef-54-wi6420895 (data as of October 1, 2026).