Public water system · IL0810200
ActiveOak Grove Village
At a glance
Oak Grove Village (PWSID IL0810200) is an active community water system in Jefferson County, Illinois. It reports serving 385 people through 154 service connections. Its primary water source is purchased surface water, 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 July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
385
Service connections
154
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Oak Grove Village compare with other water systems in Jefferson County?
By EPA's size categories, Oak Grove Village is a very small system (500 people or fewer). Jefferson County has 14 active public water systems. Its population served is well below the county average of 2,544 people per system, and accounts for 1.1% of the 35,609 people reported by systems filed under the county. Across Illinois, the 3,872 active systems average 3,204 people each. Nationally, the average active community water system reports serving 6,703 people, so Oak Grove Village is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Illinois has 1,773 active community water systems, 46% of the state's 3,872 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 619 Illinois systems (16%) list purchased surface water as their primary source.
Who owns and regulates Oak Grove Village?
EPA lists Oak Grove Village 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. 5 of the 14 active systems in Jefferson County (36%) are also privately owned.
Does Oak Grove Village have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in July 2025. By type: 1 public notice, recordkeeping or other. The contaminant or rule involved is Consumer Confidence Rule. EPA lists 1 as resolved. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
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.
Oak Grove Village: frequently asked questions
Who runs Oak Grove Village?
Oak Grove Village (PWSID IL0810200) is a community water system privately owned. It is regulated by the IL state drinking water program.
How many people does Oak Grove Village serve?
Oak Grove Village reports serving 385 people through 154 service connections in Jefferson County, Illinois.
Where does Oak Grove Village get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Oak Grove Village 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 July 2025. 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 Oak Grove Village'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 July 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.
Where can I find Oak Grove Village's water quality report?
As a community water system, Oak Grove Village must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Jefferson County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Mount Vernon | Jefferson | 15,793 | Community | Purchased surface water |
| Northeast Mount Vernon Water Company | Jefferson | 5,483 | Community | Purchased surface water |
| Woodlawn | Jefferson | 3,587 | Community | Purchased surface water |
| Dix-Kell Water Commssion | Jefferson | 1,972 | Community | Purchased surface water |
| Belle Rive | Jefferson | 1,930 | Community | Purchased surface water |
| Waltonville | Jefferson | 1,901 | 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, “Oak Grove Village, PWSID IL0810200, Illinois”, https://aquacensus.com/water-systems/illinois/oak-grove-village-il0810200 (data as of October 1, 2026).