Public water system · IL3125948
ActiveThe Isles Dx3 Inc.
At a glance
The Isles Dx3 Inc. (PWSID IL3125948) is an active transient non-community water system in Iroquois County, Illinois. It reports serving 72 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is not health-based, and the most recent began in January 1992.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
72
Service connections
2
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does The Isles Dx3 Inc. compare with other water systems in Iroquois County?
By EPA's size categories, The Isles Dx3 Inc. is a very small system (500 people or fewer). Iroquois County has 56 active public water systems. Its population served is well below the county average of 442 people per system, and accounts for 0.3% of the 24,775 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 The Isles Dx3 Inc. is about half of 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 The Isles Dx3 Inc.?
EPA lists The Isles Dx3 Inc. as privately owned. 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. 28 of the 56 active systems in Iroquois County (50%) are also privately owned.
Does The Isles Dx3 Inc. have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in January 1992. By type: 1 monitoring and reporting. 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 |
|---|---|---|---|---|
| 1992-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | 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.
The Isles Dx3 Inc.: frequently asked questions
Who runs The Isles Dx3 Inc.?
The Isles Dx3 Inc. (PWSID IL3125948) is a transient non-community water system privately owned. It is regulated by the IL state drinking water program.
How many people does The Isles Dx3 Inc. serve?
The Isles Dx3 Inc. reports serving 72 people through 2 service connections in Iroquois County, Illinois.
Where does The Isles Dx3 Inc. 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 The Isles Dx3 Inc. have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in January 1992. 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 The Isles Dx3 Inc.'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 not health-based, and the most recent began in January 1992. For current results, consult EPA ECHO, or the IL state drinking water program.
Where can I find The Isles Dx3 Inc.'s water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. The Isles Dx3 Inc. 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 Iroquois County
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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, “The Isles Dx3 Inc., PWSID IL3125948, Illinois”, https://aquacensus.com/water-systems/illinois/the-isles-dx3-inc-il3125948 (data as of October 1, 2026).