Public water system · WI6620271
ActiveGalesville Waterworks
At a glance
Galesville Waterworks (PWSID WI6620271) is an active community water system in Trempealeau County, Wisconsin. It reports serving 1,679 people through 655 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; 3 are health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,679
Service connections
655
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Galesville Waterworks compare with other water systems in Trempealeau County?
By EPA's size categories, Galesville Waterworks is a small system (501 to 3,300 people). Trempealeau County has 77 active public water systems, and Galesville Waterworks is the 5th-largest of them by population served. Its population served is about 6.5 times the county average of 259 people per system, and accounts for 8.4% of the 19,945 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 Galesville Waterworks 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 Galesville Waterworks?
EPA lists Galesville Waterworks 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. 18 of the 77 active systems in Trempealeau County (23%) are also owned by a local government.
Does Galesville Waterworks have drinking water violations?
EPA's records list 11 violations for this system; 3 are health-based, and the most recent began in October 2024. The violations listed here began between July 1993 and October 2024. By type: 5 monitoring and reporting, 3 public notice, recordkeeping or other, 2 contaminant level above the legal limit and 1 required treatment not met. The contaminant or rule involved most often is Lead and Copper Rule (3 of them). EPA lists 11 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 |
|---|---|---|---|---|
| 2024-10-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2023-12-11 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2023-10-01 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2020-11-21 | Public notice, recordkeeping or otherNotification, State · code 05 | Groundwater Rulecode 0700 | No | Resolved |
| 2015-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2015-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2002-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1999-06-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1994-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1994-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
All 11 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.
Galesville Waterworks: frequently asked questions
Who runs Galesville Waterworks?
Galesville Waterworks (PWSID WI6620271) is a community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Galesville Waterworks serve?
Galesville Waterworks reports serving 1,679 people through 655 service connections in Trempealeau County, Wisconsin.
Where does Galesville Waterworks 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 Galesville Waterworks have any drinking water violations?
EPA's records list 11 violations for this system; 3 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 Galesville Waterworks' 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 11 violations for this system; 3 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 Galesville Waterworks' water quality report?
As a community water system, Galesville Waterworks 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 Trempealeau County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Arcadia Waterworks | Trempealeau | 3,737 | Community | Groundwater |
| Trempealeau Waterworks | Trempealeau | 1,888 | Community | Groundwater |
| Whitehall Waterworks | Trempealeau | 1,820 | Community | Groundwater |
| Osseo Waterworks | Trempealeau | 1,701 | Community | Groundwater |
| Independence Waterworks | Trempealeau | 1,500 | Community | Groundwater |
| Blair Waterworks | Trempealeau | 1,280 | 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, “Galesville Waterworks, PWSID WI6620271, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/galesville-waterworks-wi6620271 (data as of October 1, 2026).