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Public water system · IL0090010

Active

Western Il Correctional Center

At a glance

Western Il Correctional Center (PWSID IL0090010) is an active community water system in Brown County, Illinois. It reports serving 1,600 people through 8 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a state government. 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

1,600

Service connections

8

Primary source

GWP

Purchased groundwater

System type

CWS

Community water system

System record

PWSIDIL0090010
System typeCommunity water system
Activity statusActive
Population served1,600
Service connections8
Primary water sourcePurchased groundwater
Owner typeState government
Primacy agencyIL state drinking water program
City servedMount Sterling
StateIllinois
ZIP—
CountyBrown County

How does Western Il Correctional Center compare with other water systems in Brown County?

By EPA's size categories, Western Il Correctional Center is a small system (501 to 3,300 people). Brown County has 5 active public water systems, and Western Il Correctional Center is the 2nd-largest of them by population served. Its population served is about 40% above the county average of 1,144 people per system, and accounts for 28% of the 5,721 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 Western Il Correctional Center 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 groundwater means the system buys groundwater from another public water system rather than drawing its own. 348 Illinois systems (9%) list purchased groundwater as their primary source.

Who owns and regulates Western Il Correctional Center?

EPA lists Western Il Correctional Center as owned by a state government. 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. 1 of the 5 active systems in Brown County (20%) are also owned by a state government.

Does Western Il Correctional Center 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 reporting. The contaminant or rule involved is Lead and Copper Rule Revisions. EPA lists 1 as unaddressed. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.

BeganViolationContaminant or ruleHealth-basedStatus
2025-07-02ReportingNotification, Known or Potential LSL · code 4HLead and Copper Rule Revisionscode 5200NoUnaddressed

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.

Western Il Correctional Center: frequently asked questions

Who runs Western Il Correctional Center?

Western Il Correctional Center (PWSID IL0090010) is a community water system owned by a state government. It is regulated by the IL state drinking water program.

How many people does Western Il Correctional Center serve?

Western Il Correctional Center reports serving 1,600 people through 8 service connections in Brown County, Illinois.

Where does Western Il Correctional Center get its water?

EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.

Does Western Il Correctional Center 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 Western Il Correctional Center'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 Western Il Correctional Center's water quality report?

As a community water system, Western Il Correctional Center 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 Brown County

Water systemCountyPopulation servedTypeSource
Mount SterlingBrown3,271CommunityPurchased groundwater
VersaillesBrown478CommunityGroundwater
RipleyBrown250CommunityPurchased groundwater
Mound StationBrown122CommunityPurchased groundwater

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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, “Western Il Correctional Center, PWSID IL0090010, Illinois”, https://aquacensus.com/water-systems/illinois/western-il-correctional-center-il0090010 (data as of October 1, 2026).