Public water system · WI6480240
ActiveMaiden Rock Water Utility
At a glance
Maiden Rock Water Utility (PWSID WI6480240) is an active community water system in Pierce County, Wisconsin. It reports serving 118 people through 87 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
118
Service connections
87
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Maiden Rock Water Utility compare with other water systems in Pierce County?
By EPA's size categories, Maiden Rock Water Utility is a very small system (500 people or fewer). Pierce County has 95 active public water systems. Its population served is about 65% below the county average of 341 people per system, and accounts for 0.4% of the 32,378 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 Maiden Rock Water Utility 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 Maiden Rock Water Utility?
EPA lists Maiden Rock Water Utility 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. 10 of the 95 active systems in Pierce County (11%) are also owned by a local government.
Does Maiden Rock Water Utility have drinking water violations?
EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in October 2024. The violations listed here began between July 2004 and October 2024. By type: 2 required treatment not met, 2 public notice, recordkeeping or other and 1 monitoring and reporting. The contaminants or rules involved are Lead and Copper Rule Revisions, Public Notice, Stage 1 Disinfectants and Disinfection Byproducts Rule and Lead and Copper Rule. EPA lists 4 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Resolved |
| 2024-10-17 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2016-07-30 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Resolved |
| 2012-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2004-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
All 5 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.
Maiden Rock Water Utility: frequently asked questions
Who runs Maiden Rock Water Utility?
Maiden Rock Water Utility (PWSID WI6480240) is a community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Maiden Rock Water Utility serve?
Maiden Rock Water Utility reports serving 118 people through 87 service connections in Pierce County, Wisconsin.
Where does Maiden Rock Water Utility 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 Maiden Rock Water Utility have any drinking water violations?
EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in October 2024. 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 Maiden Rock Water Utility'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 5 violations for this system; 2 are health-based, and the most recent began in October 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.
Where can I find Maiden Rock Water Utility's water quality report?
As a community water system, Maiden Rock Water Utility 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 Pierce County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| River Falls Waterworks | Pierce | 16,000 | Community | Groundwater |
| Prescott Waterworks | Pierce | 4,258 | Community | Groundwater |
| Ellsworth Waterworks | Pierce | 3,304 | Community | Groundwater |
| Spring Valley Waterworks | Pierce | 1,409 | Community | Groundwater |
| Elmwood Waterworks | Pierce | 798 | Community | Groundwater |
| Belle Ame Vineyard | Pierce | 500 | 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, “Maiden Rock Water Utility, PWSID WI6480240, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/maiden-rock-water-utility-wi6480240 (data as of October 1, 2026).