Public water system · WI2686202
ActiveDelafield Library & City Hall
At a glance
Delafield Library & City Hall (PWSID WI2686202) is an active transient non-community water system in Waukesha County, Wisconsin. It reports serving 40 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
40
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Delafield Library & City Hall compare with other water systems in Waukesha County?
By EPA's size categories, Delafield Library & City Hall 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 Delafield Library & City Hall 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 Delafield Library & City Hall?
EPA lists Delafield Library & City Hall 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 Delafield Library & City Hall have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Delafield Library & City Hall. For the latest compliance status, check EPA ECHO for current compliance history.
Delafield Library & City Hall: frequently asked questions
Who runs Delafield Library & City Hall?
Delafield Library & City Hall (PWSID WI2686202) is a transient non-community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Delafield Library & City Hall serve?
Delafield Library & City Hall reports serving 40 people through 1 service connection in Waukesha County, Wisconsin.
Where does Delafield Library & City Hall 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 Delafield Library & City Hall have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Delafield Library & City Hall'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 Safe Drinking Water Act records list no violations for this system. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Delafield Library & City Hall's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Delafield Library & City Hall 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, “Delafield Library & City Hall, PWSID WI2686202, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/delafield-library-city-hall-wi2686202 (data as of October 1, 2026).