Public water system · WI2680082
ActiveMenomonee Falls Ww - Surface Water
At a glance
Menomonee Falls Ww - Surface Water (PWSID WI2680082) is an active community water system in Waukesha County, Wisconsin. It reports serving 23,867 people through 8,839 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in November 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
23,867
Service connections
8,839
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Menomonee Falls Ww - Surface Water compare with other water systems in Waukesha County?
By EPA's size categories, Menomonee Falls Ww - Surface Water is a large system (10,001 to 100,000 people). Waukesha County has 589 active public water systems, and Menomonee Falls Ww - Surface Water is the 4th-largest of them by population served. Its population served is about 43 times the county average of 549 people per system, and accounts for 7.4% 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 Menomonee Falls Ww - Surface Water is about 3.6 times 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 43 Wisconsin systems (0.4%) list purchased surface water as their primary source.
Who owns and regulates Menomonee Falls Ww - Surface Water?
EPA lists Menomonee Falls Ww - Surface Water 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. 102 of the 589 active systems in Waukesha County (17%) are also owned by a local government.
Does Menomonee Falls Ww - Surface Water have drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in November 2016. The violations listed here began between July 1998 and November 2016. By type: 5 monitoring and reporting, 4 contaminant level above the legal limit, 1 reporting, 1 required treatment not met and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 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 |
|---|---|---|---|---|
| 2016-11-26 | ReportingReporting, Assessment Forms (RTCR) · code 4A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-11-26 | Required treatment not metTreatment Technique, Level 1 Assessment (RTCR) · code 2A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2002-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2000-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2000-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1999-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1999-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1999-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1999-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Gross alpha (excluding radon and uranium)code 4000 | Yes | Resolved |
| 1999-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Gross alpha (excluding radon and uranium)code 4000 | Yes | Resolved |
| 1998-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Gross alpha (excluding radon and uranium)code 4000 | Yes | Resolved |
| 1998-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Gross alpha (excluding radon and uranium)code 4000 | Yes | 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.
Menomonee Falls Ww - Surface Water: frequently asked questions
Who runs Menomonee Falls Ww - Surface Water?
Menomonee Falls Ww - Surface Water (PWSID WI2680082) is a community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Menomonee Falls Ww - Surface Water serve?
Menomonee Falls Ww - Surface Water reports serving 23,867 people through 8,839 service connections in Waukesha County, Wisconsin.
Where does Menomonee Falls Ww - Surface Water get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Menomonee Falls Ww - Surface Water have any drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in November 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 Menomonee Falls Ww - Surface Water'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. Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in November 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 Menomonee Falls Ww - Surface Water's water quality report?
As a community water system, Menomonee Falls Ww - Surface Water 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 |
| Oconomowoc Waterworks | Waukesha | 15,805 | Community | Groundwater |
| Sussex Village Hall & Water Utility | Waukesha | 11,750 | Community | Groundwater |
| Hartland Waterworks | Waukesha | 9,212 | Community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Menomonee Falls Ww - Surface Water, PWSID WI2680082, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/menomonee-falls-ww-surface-water-wi2680082 (data as of October 1, 2026).