Public water system · WI4310281
ActiveKewaunee Waterworks
At a glance
Kewaunee Waterworks (PWSID WI4310281) is an active community water system in Kewaunee County, Wisconsin. It reports serving 2,848 people through 1,054 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 October 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,848
Service connections
1,054
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Kewaunee Waterworks compare with other water systems in Kewaunee County?
By EPA's size categories, Kewaunee Waterworks is a small system (501 to 3,300 people). Kewaunee County has 72 active public water systems, and Kewaunee Waterworks is the 2nd-largest of them by population served. Its population served is about 17 times the county average of 169 people per system, and accounts for 23% of the 12,146 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 Kewaunee Waterworks is about 58% 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 Kewaunee Waterworks?
EPA lists Kewaunee 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. 10 of the 72 active systems in Kewaunee County (14%) are also owned by a local government.
Does Kewaunee Waterworks have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2023. The violations listed here began between October 2002 and October 2023. By type: 11 monitoring and reporting and 1 required treatment not met. The contaminant or rule involved most often is Lead and Copper Rule (3 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 |
|---|---|---|---|---|
| 2023-10-01 | Required treatment not metOCCT/SOWT Study/Recommendation · code 57 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2018-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2009-10-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2009-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2008-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2002-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toluenecode 2991 | No | Resolved |
| 2002-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Styrenecode 2996 | No | Resolved |
| 2002-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dichloromethanecode 2964 | No | Resolved |
| 2002-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloropropanecode 2983 | No | Resolved |
| 2002-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | No | Resolved |
| 2002-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Carbon tetrachloridecode 2982 | No | Resolved |
| 2002-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | p-Dichlorobenzenecode 2969 | 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.
Kewaunee Waterworks: frequently asked questions
Who runs Kewaunee Waterworks?
Kewaunee Waterworks (PWSID WI4310281) is a community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Kewaunee Waterworks serve?
Kewaunee Waterworks reports serving 2,848 people through 1,054 service connections in Kewaunee County, Wisconsin.
Where does Kewaunee 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 Kewaunee Waterworks 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 October 2023. 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 Kewaunee 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. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.
Where can I find Kewaunee Waterworks' water quality report?
As a community water system, Kewaunee 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 Kewaunee County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Algoma Waterworks | Kewaunee | 3,219 | Community | Groundwater |
| Luxemburg Waterworks | Kewaunee | 2,737 | Community | Groundwater |
| Rendezvous Dance Hall | Kewaunee | 220 | Transient non-community | Groundwater |
| J & Ws Place | Kewaunee | 220 | Transient non-community | Groundwater |
| Kewaunee Solutions | Kewaunee | 206 | Non-transient non-community | Groundwater |
| Agropur Inc. | Kewaunee | 180 | Non-transient non-community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Kewaunee Waterworks, PWSID WI4310281, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/kewaunee-waterworks-wi4310281 (data as of October 1, 2026).