Public water system · WI8020373
ActiveAshland Water Utility
At a glance
Ashland Water Utility (PWSID WI8020373) is an active community water system in Ashland County, Wisconsin. It reports serving 8,000 people through 3,067 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in March 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
8,000
Service connections
3,067
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Ashland Water Utility compare with other water systems in Ashland County?
By EPA's size categories, Ashland Water Utility is a medium system (3,301 to 10,000 people). Ashland County has 82 active public water systems, and Ashland Water Utility is the largest of them by population served. Its population served is about 53 times the county average of 151 people per system, and accounts for 64% of the 12,416 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 Ashland Water Utility is about 19% above 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 20 Wisconsin systems (0.2%) list surface water as their primary source.
Who owns and regulates Ashland Water Utility?
EPA lists Ashland 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. 20 of the 82 active systems in Ashland County (24%) are also owned by a local government.
Does Ashland Water Utility have drinking water violations?
Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in March 2024. The violations listed here began between January 2023 and March 2024. By type: 5 contaminant level above the legal limit, 4 public notice, recordkeeping or other, 1 required treatment not met, 1 monitoring and 1 monitoring and reporting. The contaminant or rule involved most often is Public Notice (4 of them). EPA lists 7 as resolved and 5 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 |
|---|---|---|---|---|
| 2024-03-11 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2024-02-27 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2024-02-27 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2024-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Archived |
| 2024-01-01 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2024-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2023-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Archived |
| 2023-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2023-08-29 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2023-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2023-05-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-01-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
The 12 most recent 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.
Ashland Water Utility: frequently asked questions
Who runs Ashland Water Utility?
Ashland Water Utility (PWSID WI8020373) is a community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Ashland Water Utility serve?
Ashland Water Utility reports serving 8,000 people through 3,067 service connections in Ashland County, Wisconsin.
Where does Ashland Water Utility get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Ashland Water Utility have any drinking water violations?
Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in March 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 Ashland 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. Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in March 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 Ashland Water Utility's water quality report?
As a community water system, Ashland 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 Ashland County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Glidden Sanitary District | Ashland | 750 | Community | Groundwater |
| Mellen Water Utility | Ashland | 731 | Community | Groundwater |
| Butternut Waterworks | Ashland | 283 | Community | Groundwater |
| Marengo Valley School | Ashland | 220 | Non-transient non-community | Groundwater |
| Hartzell Subdivision - Abbey Lane | Ashland | 115 | Transient non-community | Groundwater |
| Beach Club | Ashland | 100 | 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, “Ashland Water Utility, PWSID WI8020373, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/ashland-water-utility-wi8020373 (data as of October 1, 2026).