Public water system · IL3110247
ActiveNaperville C. C. Clubhouse
At a glance
Naperville C. C. Clubhouse (PWSID IL3110247) is an active transient non-community water system in DuPage County, Illinois. It reports serving 100 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as under public/private ownership. EPA's records list 2 violations for this system; all are health-based, and the most recent began in January 2009.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
100
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Naperville C. C. Clubhouse compare with other water systems in DuPage County?
By EPA's size categories, Naperville C. C. Clubhouse 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 Naperville C. C. Clubhouse is about 31% 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. 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 Naperville C. C. Clubhouse?
EPA lists Naperville C. C. Clubhouse 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 Naperville C. C. Clubhouse have drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in January 2009. The violations listed here began between January 1997 and January 2009. By type: 2 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 1 as resolved and 1 as archived. 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. 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 |
|---|---|---|---|---|
| 2009-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1997-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
All 2 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.
Naperville C. C. Clubhouse: frequently asked questions
Who runs Naperville C. C. Clubhouse?
Naperville C. C. Clubhouse (PWSID IL3110247) 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 Naperville C. C. Clubhouse serve?
Naperville C. C. Clubhouse reports serving 100 people through 1 service connection in DuPage County, Illinois.
Where does Naperville C. C. Clubhouse 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 Naperville C. C. Clubhouse have any drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in January 2009. 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 Naperville C. C. Clubhouse'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 2 violations for this system; all are health-based, and the most recent began in January 2009. For current results, consult EPA ECHO, or the IL state drinking water program.
Where can I find Naperville C. C. Clubhouse's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Naperville C. C. Clubhouse 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, “Naperville C. C. Clubhouse, PWSID IL3110247, Illinois”, https://aquacensus.com/water-systems/illinois/naperville-c-c-clubhouse-il3110247 (data as of October 1, 2026).