Public water system · WI1140058

Active

Juneau Waterworks

At a glance

Juneau Waterworks (PWSID WI1140058) is an active community water system in Dodge County, Wisconsin. It reports serving 2,627 people through 972 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, 7 are health-based, and the most recent began in January 2025.

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

Population served

2,627

Service connections

972

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDWI1140058

System typeCommunity water system

Activity statusActive

Population served2,627

Service connections972

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyWI state drinking water program

City servedJuneau

StateWisconsin

ZIP—

CountyDodge County

How does Juneau Waterworks compare with other water systems in Dodge County?

By EPA's size categories, Juneau Waterworks is a small system (501 to 3,300 people). Dodge County has 180 active public water systems. Its population served is about 6.4 times the county average of 408 people per system, and accounts for 3.6% of the 73,453 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 Juneau Waterworks is about 61% 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 Juneau Waterworks?

EPA lists Juneau 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. 38 of the 180 active systems in Dodge County (21%) are also owned by a local government.

Does Juneau Waterworks have drinking water violations?

Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in January 2025. The violations listed here began between July 1995 and January 2025. By type: 4 required treatment not met, 3 contaminant level above the legal limit, 3 monitoring and reporting and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Lead and Copper Rule (7 of them). EPA lists 10 as resolved and 2 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.

Began	Violation	Contaminant or rule	Health-based	Status
2025-01-11	Required treatment not metPublic Education · code 65	Lead and Copper Rulecode 5000	Yes	Unaddressed
2024-01-11	Required treatment not metPublic Education · code 65	Lead and Copper Rulecode 5000	Yes	Resolved
2024-01-11	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2023-01-11	Required treatment not metPublic Education · code 65	Lead and Copper Rulecode 5000	Yes	Resolved
2021-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Combined Radium (-226 and -228)code 4010	Yes	Resolved
2020-11-01	Required treatment not metPublic Education · code 65	Lead and Copper Rulecode 5000	Yes	Resolved
2020-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Combined Radium (-226 and -228)code 4010	Yes	Resolved
2020-01-10	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2019-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Combined Radium (-226 and -228)code 4010	Yes	Resolved
2018-01-01	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2012-01-01	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Unaddressed
1995-07-01	Monitoring and reportingWater Quality Parameter M/R · code 53	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.

Juneau Waterworks: frequently asked questions

Who runs Juneau Waterworks?

Juneau Waterworks (PWSID WI1140058) is a community water system owned by a local government. It is regulated by the WI state drinking water program.

How many people does Juneau Waterworks serve?

Juneau Waterworks reports serving 2,627 people through 972 service connections in Dodge County, Wisconsin.

Where does Juneau 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 Juneau Waterworks have any drinking water violations?

Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in January 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 Juneau 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, 7 are health-based, and the most recent began in January 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 Juneau Waterworks' water quality report?

As a community water system, Juneau 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 Dodge County

Water system	County	Population served	Type	Source
Beaver Dam Water Utility	Dodge	16,200	Community	Groundwater
Waupun Utilities	Dodge	8,056	Community	Groundwater
Mayville Waterworks	Dodge	5,112	Community	Groundwater
Waupun Correctional Inst	Dodge	3,706	Community	Groundwater
Horicon Waterworks	Dodge	3,682	Community	Groundwater
Lomira Waterworks	Dodge	2,701	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, “Juneau Waterworks, PWSID WI1140058, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/juneau-waterworks-wi1140058 (data as of October 1, 2026).