Public water system · IL3113001
ActiveUma Gasoline/Citgo
At a glance
Uma Gasoline/Citgo (PWSID IL3113001) is an active transient non-community water system in Lake County, Illinois. It reports serving 300 people through 1 service connection. 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 1991.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
300
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Uma Gasoline/Citgo compare with other water systems in Lake County?
By EPA's size categories, Uma Gasoline/Citgo is a very small system (500 people or fewer). Lake County has 266 active public water systems. Its population served is well below the county average of 2,442 people per system, and accounts for less than 0.1% of the 649,474 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 Uma Gasoline/Citgo is about twice 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 Uma Gasoline/Citgo?
EPA lists Uma Gasoline/Citgo 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. 193 of the 266 active systems in Lake County (73%) are also privately owned.
Does Uma Gasoline/Citgo 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 1991. 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 |
|---|---|---|---|---|
| 1991-01-01 | 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.
Uma Gasoline/Citgo: frequently asked questions
Who runs Uma Gasoline/Citgo?
Uma Gasoline/Citgo (PWSID IL3113001) is a transient non-community water system privately owned. It is regulated by the IL state drinking water program.
How many people does Uma Gasoline/Citgo serve?
Uma Gasoline/Citgo reports serving 300 people through 1 service connection in Lake County, Illinois.
Where does Uma Gasoline/Citgo 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 Uma Gasoline/Citgo 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 1991. 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 Uma Gasoline/Citgo'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 1991. For current results, consult EPA ECHO, or the IL state drinking water program.
Where can I find Uma Gasoline/Citgo's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Uma Gasoline/Citgo 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 Lake County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Waukegan | Lake | 87,149 | Community | Surface water |
| Vernon Hills - Lake Co Pw | Lake | 33,207 | Community | Purchased surface water |
| Mundelein | Lake | 31,500 | Community | Purchased surface water |
| Gurnee | Lake | 30,193 | Community | Purchased surface water |
| Highland Park | Lake | 30,176 | Community | Surface water |
| Round Lake Beach | Lake | 27,200 | 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, “Uma Gasoline/Citgo, PWSID IL3113001, Illinois”, https://aquacensus.com/water-systems/illinois/uma-gasoline-citgo-il3113001 (data as of October 1, 2026).