Public water system · IL3040683
ActiveSquirrel Cage Tavern
At a glance
Squirrel Cage Tavern (PWSID IL3040683) is an active transient non-community water system in DuPage County, Illinois. It reports serving 200 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as under public/private ownership. EPA's records list one violation for this system; it is health-based, and the most recent began in July 1987.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
200
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Squirrel Cage Tavern compare with other water systems in DuPage County?
By EPA's size categories, Squirrel Cage Tavern is a very small system (500 people or fewer). DuPage County has 125 active public water systems. Its population served is well below the county average of 6,865 people per system, and accounts for less than 0.1% of the 858,100 people reported by systems filed under the county. Across Illinois, the 3,872 active systems average 3,204 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Squirrel Cage Tavern is about 39% above 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. Illinois has 1,703 active transient non-community water systems, 44% of the state's 3,872 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,808 Illinois systems (73%) list groundwater as their primary source.
Who owns and regulates Squirrel Cage Tavern?
EPA lists Squirrel Cage Tavern as under public/private ownership. The IL state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 16 of the 125 active systems in DuPage County (13%) are also under public/private ownership.
Does Squirrel Cage Tavern have drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in July 1987. By type: 1 contaminant level above the legal limit. The contaminant or rule involved is Total coliform bacteria (TCR). EPA lists 1 as archived. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 1987-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
The one violation in EPA's records.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.
Squirrel Cage Tavern: frequently asked questions
Who runs Squirrel Cage Tavern?
Squirrel Cage Tavern (PWSID IL3040683) is a transient non-community water system under public/private ownership. It is regulated by the IL state drinking water program.
How many people does Squirrel Cage Tavern serve?
Squirrel Cage Tavern reports serving 200 people through 1 service connection in DuPage County, Illinois.
Where does Squirrel Cage Tavern 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 Squirrel Cage Tavern have any drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in July 1987. 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 Squirrel Cage Tavern'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 one violation for this system; it is health-based, and the most recent began in July 1987. For current results, consult EPA ECHO, or the IL state drinking water program.
Where can I find Squirrel Cage Tavern's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Squirrel Cage Tavern 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 DuPage County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Naperville | DuPage | 156,406 | Community | Purchased surface water |
| Wheaton | DuPage | 53,970 | Community | Purchased surface water |
| Downers Grove | DuPage | 49,425 | Community | Purchased surface water |
| Elmhurst | DuPage | 45,000 | Community | Purchased surface water |
| Lombard | DuPage | 44,476 | Community | Purchased surface water |
| Carol Stream | DuPage | 39,854 | Community | Purchased surface water |
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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, “Squirrel Cage Tavern, PWSID IL3040683, Illinois”, https://aquacensus.com/water-systems/illinois/squirrel-cage-tavern-il3040683 (data as of October 1, 2026).