Public water system · WI4080221
ActiveBrillion Waterworks
At a glance
Brillion Waterworks (PWSID WI4080221) is an active community water system in Calumet County, Wisconsin. It reports serving 3,262 people through 11,191 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in January 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,262
Service connections
11,191
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Brillion Waterworks compare with other water systems in Calumet County?
By EPA's size categories, Brillion Waterworks is a small system (501 to 3,300 people). Calumet County has 50 active public water systems, and Brillion Waterworks is the 3rd-largest of them by population served. Its population served is about 6.7 times the county average of 485 people per system, and accounts for 13% of the 24,253 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 Brillion Waterworks is about half of 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 Brillion Waterworks?
EPA lists Brillion 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. 12 of the 50 active systems in Calumet County (24%) are also owned by a local government.
Does Brillion Waterworks have drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in January 2019. The violations listed here began between September 1993 and January 2019. By type: 4 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 5 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 |
|---|---|---|---|---|
| 2019-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2019-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2018-01-01 | Required treatment not metLead Service Line Replacement (LSLR) · code 64 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 1995-08-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1993-09-01 | Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 5 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.
Brillion Waterworks: frequently asked questions
Who runs Brillion Waterworks?
Brillion Waterworks (PWSID WI4080221) is a community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Brillion Waterworks serve?
Brillion Waterworks reports serving 3,262 people through 11,191 service connections in Calumet County, Wisconsin.
Where does Brillion 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 Brillion Waterworks have any drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in January 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 Brillion 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 5 violations for this system; 1 is health-based, and the most recent began in January 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 Brillion Waterworks' water quality report?
As a community water system, Brillion 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 Calumet County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Harrison Utilities - Fka Waverly Sd | Calumet | 5,500 | Community | Purchased surface water |
| Chilton Waterworks | Calumet | 4,191 | Community | Groundwater |
| Sherwood Waterworks | Calumet | 3,114 | Community | Purchased surface water |
| New Holstein Waterworks | Calumet | 3,012 | Community | Groundwater |
| Hilbert Waterworks | Calumet | 1,176 | Community | Groundwater |
| Stockbridge Waterworks | Calumet | 650 | 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, “Brillion Waterworks, PWSID WI4080221, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/brillion-waterworks-wi4080221 (data as of October 1, 2026).