Public water system · WI8580532
ActiveHayward Water Utility
At a glance
Hayward Water Utility (PWSID WI8580532) is an active community water system in Sawyer County, Wisconsin. It reports serving 2,552 people through 945 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,552
Service connections
945
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Hayward Water Utility compare with other water systems in Sawyer County?
By EPA's size categories, Hayward Water Utility is a small system (501 to 3,300 people). Sawyer County has 191 active public water systems, and Hayward Water Utility is the largest of them by population served. Its population served is about 36 times the county average of 70 people per system, and accounts for 19% of the 13,417 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 Hayward Water Utility is about 62% 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 Hayward Water Utility?
EPA lists Hayward 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. 8 of the 191 active systems in Sawyer County (4.2%) are also owned by a local government.
Does Hayward Water Utility have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2019. The violations listed here began between January 2007 and July 2019. By type: 10 monitoring and reporting, 1 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2019-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2011-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2011-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2010-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | No | Resolved |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Uraniumcode 4006 | No | Resolved |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | No | Resolved |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Resolved |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Uraniumcode 4006 | No | Resolved |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Resolved |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | 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.
Hayward Water Utility: frequently asked questions
Who runs Hayward Water Utility?
Hayward Water Utility (PWSID WI8580532) is a community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Hayward Water Utility serve?
Hayward Water Utility reports serving 2,552 people through 945 service connections in Sawyer County, Wisconsin.
Where does Hayward 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 Hayward Water Utility have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2019. 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 Hayward 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, one is health-based, and the most recent began in July 2019. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.
Where can I find Hayward Water Utility's water quality report?
As a community water system, Hayward 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 Sawyer County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Winter Waterworks | Sawyer | 344 | Community | Groundwater |
| Nelson Lake Lodge Office | Sawyer | 300 | Transient non-community | Groundwater |
| Grand Pines Motel | Sawyer | 300 | Transient non-community | Groundwater |
| Dock the | Sawyer | 250 | Transient non-community | Groundwater |
| Big Bear Lodge | Sawyer | 250 | Transient non-community | Groundwater |
| Radisson Waterworks | Sawyer | 241 | 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, “Hayward Water Utility, PWSID WI8580532, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/hayward-water-utility-wi8580532 (data as of October 1, 2026).