Public water system · WI4380445

Active

Wausaukee Waterworks

At a glance

Wausaukee Waterworks (PWSID WI4380445) is an active community water system in Marinette County, Wisconsin. It reports serving 585 people through 316 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in July 2025.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

585

Service connections

316

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDWI4380445

System typeCommunity water system

Activity statusActive

Population served585

Service connections316

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyWI state drinking water program

City servedWausaukee

StateWisconsin

ZIP—

CountyMarinette County

How does Wausaukee Waterworks compare with other water systems in Marinette County?

By EPA's size categories, Wausaukee Waterworks is a small system (501 to 3,300 people). Marinette County has 191 active public water systems, and Wausaukee Waterworks is the 6th-largest of them by population served. Its population served is about 4.2 times the county average of 141 people per system, and accounts for 2.2% of the 26,830 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 Wausaukee 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 Wausaukee Waterworks?

EPA lists Wausaukee 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. 27 of the 191 active systems in Marinette County (14%) are also owned by a local government.

Does Wausaukee Waterworks have drinking water violations?

EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in July 2025. The violations listed here began between April 1991 and July 2025. By type: 4 monitoring and reporting, 3 public notice, recordkeeping or other, 1 reporting, 1 required treatment not met and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 9 as resolved and 1 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
2025-07-02	ReportingNotification, Known or Potential LSL · code 4H	Lead and Copper Rule Revisionscode 5200	No	Resolved
2024-10-17	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2024-10-17	Required treatment not metLSL Inventory · code 2E	Lead and Copper Rule Revisionscode 5200	Yes	Resolved
2017-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Nitratecode 1040	Yes	Resolved
2015-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2005-11-01	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2005-10-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
2004-05-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
1995-02-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
1991-04-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived

All 10 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.

Wausaukee Waterworks: frequently asked questions

Who runs Wausaukee Waterworks?

Wausaukee Waterworks (PWSID WI4380445) is a community water system owned by a local government. It is regulated by the WI state drinking water program.

How many people does Wausaukee Waterworks serve?

Wausaukee Waterworks reports serving 585 people through 316 service connections in Marinette County, Wisconsin.

Where does Wausaukee 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 Wausaukee Waterworks have any drinking water violations?

EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in July 2025. 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 Wausaukee 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 10 violations for this system; 2 are health-based, and the most recent began in July 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.

Where can I find Wausaukee Waterworks' water quality report?

As a community water system, Wausaukee 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 Marinette County

Water system	County	Population served	Type	Source
Marinette Waterworks	Marinette	10,968	Community	Surface water
Peshtigo Waterworks	Marinette	3,420	Community	Groundwater
Niagara Waterworks	Marinette	1,561	Community	Groundwater
Crivitz Waterworks	Marinette	1,026	Community	Groundwater
Coleman Waterworks	Marinette	727	Community	Groundwater
Goodman Sanitary Dist No 1	Marinette	350	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, “Wausaukee Waterworks, PWSID WI4380445, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/wausaukee-waterworks-wi4380445 (data as of October 1, 2026).