Public water system · WI2684828
ActiveM Anderson American Legion Post 399
At a glance
M Anderson American Legion Post 399 (PWSID WI2684828) is an active transient non-community water system in Waukesha County, Wisconsin. It reports serving 26 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 4 violations for this system; 3 are health-based, and the most recent began in February 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
26
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does M Anderson American Legion Post 399 compare with other water systems in Waukesha County?
By EPA's size categories, M Anderson American Legion Post 399 is a very small system (500 people or fewer). Waukesha County has 589 active public water systems. Its population served is well below the county average of 549 people per system, and accounts for less than 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 transient non-community water system reports serving 144 people, so M Anderson American Legion Post 399 is well below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Wisconsin has 9,112 active transient non-community water systems, 82% 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 M Anderson American Legion Post 399?
EPA lists M Anderson American Legion Post 399 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 M Anderson American Legion Post 399 have drinking water violations?
EPA's records list 4 violations for this system; 3 are health-based, and the most recent began in February 2014. The violations listed here began between July 1995 and February 2014. By type: 3 contaminant level above the legal limit and 1 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 4 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 |
|---|---|---|---|---|
| 2014-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2013-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2005-03-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1995-07-07 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
All 4 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.
M Anderson American Legion Post 399: frequently asked questions
Who runs M Anderson American Legion Post 399?
M Anderson American Legion Post 399 (PWSID WI2684828) is a transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does M Anderson American Legion Post 399 serve?
M Anderson American Legion Post 399 reports serving 26 people through 1 service connection in Waukesha County, Wisconsin.
Where does M Anderson American Legion Post 399 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 M Anderson American Legion Post 399 have any drinking water violations?
EPA's records list 4 violations for this system; 3 are health-based, and the most recent began in February 2014. 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 M Anderson American Legion Post 399'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 4 violations for this system; 3 are health-based, and the most recent began in February 2014. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find M Anderson American Legion Post 399's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. M Anderson American Legion Post 399 is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
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, “M Anderson American Legion Post 399, PWSID WI2684828, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/m-anderson-american-legion-post-399-wi2684828 (data as of October 1, 2026).