Public water system · WI8660303

Active

Minong Waterworks

At a glance

Minong Waterworks (PWSID WI8660303) is an active community water system in Washburn County, Wisconsin. It reports serving 561 people through 207 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, none is health-based, and the most recent began in July 2016.

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

Population served

561

Service connections

207

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDWI8660303

System typeCommunity water system

Activity statusActive

Population served561

Service connections207

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyWI state drinking water program

City servedMinong

StateWisconsin

ZIP—

CountyWashburn County

How does Minong Waterworks compare with other water systems in Washburn County?

By EPA's size categories, Minong Waterworks is a small system (501 to 3,300 people). Washburn County has 128 active public water systems, and Minong Waterworks is the 3rd-largest of them by population served. Its population served is about 7.5 times the county average of 75 people per system, and accounts for 5.9% of the 9,565 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 Minong 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 Minong Waterworks?

EPA lists Minong 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. 16 of the 128 active systems in Washburn County (13%) are also owned by a local government.

Does Minong Waterworks have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2016. The violations listed here began between April 2002 and July 2016. By type: 7 monitoring and reporting and 5 public notice, recordkeeping or other. The contaminant or rule involved most often is Consumer Confidence Rule (4 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
2016-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2014-01-01	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2013-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2012-10-01	Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72	Consumer Confidence Rulecode 7000	No	Resolved
2010-11-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2010-10-01	Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72	Consumer Confidence Rulecode 7000	No	Resolved
2010-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2010-06-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
2010-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2003-04-01	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2003-03-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
2002-04-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	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.

Minong Waterworks: frequently asked questions

Who runs Minong Waterworks?

Minong Waterworks (PWSID WI8660303) is a community water system owned by a local government. It is regulated by the WI state drinking water program.

How many people does Minong Waterworks serve?

Minong Waterworks reports serving 561 people through 207 service connections in Washburn County, Wisconsin.

Where does Minong 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 Minong Waterworks have any drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2016. 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 Minong 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, none is health-based, and the most recent began in July 2016. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.

Where can I find Minong Waterworks' water quality report?

As a community water system, Minong 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 Washburn County

Water system	County	Population served	Type	Source
Spooner Waterworks	Washburn	2,653	Community	Groundwater
Shell Lake Waterworks	Washburn	950	Community	Groundwater
Birchwood Waterworks	Washburn	442	Community	Groundwater
Northwood School	Washburn	350	Non-transient non-community	Groundwater
Birch Trail Camp for Girls Main Well	Washburn	300	Transient non-community	Groundwater
Friends of Hunt Hill Audubon Sanctuary Main Camp	Washburn	275	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, “Minong Waterworks, PWSID WI8660303, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/minong-waterworks-wi8660303 (data as of October 1, 2026).