Public water system · WI2682639
ActiveBrandybrook Subdivision
At a glance
Brandybrook Subdivision (PWSID WI2682639) is an active community water system in Waukesha County, Wisconsin. It reports serving 474 people through 116 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
474
Service connections
116
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Brandybrook Subdivision compare with other water systems in Waukesha County?
By EPA's size categories, Brandybrook Subdivision is a very small system (500 people or fewer). Waukesha County has 589 active public water systems. Its population served is about 14% below the county average of 549 people per system, and accounts for 0.1% of the 323,265 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 Brandybrook Subdivision 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 Brandybrook Subdivision?
EPA lists Brandybrook Subdivision as privately owned. 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. 452 of the 589 active systems in Waukesha County (77%) are also privately owned.
Does Brandybrook Subdivision have drinking water violations?
EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in July 2025. The violations listed here began between October 2015 and July 2025. By type: 2 contaminant level above the legal limit and 1 reporting. The contaminants or rules involved are Lead and Copper Rule Revisions, Revised Total Coliform Rule and Total coliform bacteria (TCR). EPA lists 2 as resolved and 1 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 |
|---|---|---|---|---|
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Unaddressed |
| 2025-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, E. coli (RTCR) · code 1A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2015-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 3 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.
Brandybrook Subdivision: frequently asked questions
Who runs Brandybrook Subdivision?
Brandybrook Subdivision (PWSID WI2682639) is a community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Brandybrook Subdivision serve?
Brandybrook Subdivision reports serving 474 people through 116 service connections in Waukesha County, Wisconsin.
Where does Brandybrook Subdivision 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 Brandybrook Subdivision have any drinking water violations?
EPA's records list 3 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 Brandybrook Subdivision's 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 3 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 Brandybrook Subdivision's water quality report?
As a community water system, Brandybrook Subdivision 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 Waukesha County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Waukesha Water Utility | Waukesha | 70,718 | Community | Purchased surface water |
| Brookfield Water Utility | Waukesha | 29,070 | Community | Groundwater |
| New Berlin Water Utility | Waukesha | 27,899 | Community | Purchased surface water |
| Menomonee Falls Ww - Surface Water | Waukesha | 23,867 | Community | Purchased surface water |
| Oconomowoc Waterworks | Waukesha | 15,805 | Community | Groundwater |
| Sussex Village Hall & Water Utility | Waukesha | 11,750 | 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, “Brandybrook Subdivision, PWSID WI2682639, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/brandybrook-subdivision-wi2682639 (data as of October 1, 2026).