Public water system · IL0870010
ActiveShawnee Correctional Center
At a glance
Shawnee Correctional Center (PWSID IL0870010) is an active community water system in Johnson County, Illinois. It reports serving 1,617 people through 1 service connection. Its primary water source is purchased surface water, and EPA lists it as owned by a state government. EPA's records list 5 violations for this system; none is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,617
Service connections
1
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Shawnee Correctional Center compare with other water systems in Johnson County?
By EPA's size categories, Shawnee Correctional Center is a small system (501 to 3,300 people). Johnson County has 7 active public water systems, and Shawnee Correctional Center is the 3rd-largest of them by population served. Its population served is about 41% above the county average of 1,146 people per system, and accounts for 20% of the 8,021 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 Shawnee 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 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 Shawnee Correctional Center?
EPA lists Shawnee 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. 2 of the 7 active systems in Johnson County (29%) are also owned by a state government.
Does Shawnee Correctional Center have drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in July 2025. The violations listed here began between October 2024 and July 2025. By type: 5 monitoring and reporting. The contaminant or rule involved most often is Lead and Copper Rule (2 of them). EPA lists 5 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 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2025-04-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2024-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2024-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
All 5 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.
Shawnee Correctional Center: frequently asked questions
Who runs Shawnee Correctional Center?
Shawnee Correctional Center (PWSID IL0870010) is a community water system owned by a state government. It is regulated by the IL state drinking water program.
How many people does Shawnee Correctional Center serve?
Shawnee Correctional Center reports serving 1,617 people through 1 service connection in Johnson County, Illinois.
Where does Shawnee Correctional Center 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 Shawnee Correctional Center have any drinking water violations?
EPA's records list 5 violations for this system; none is 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 Shawnee 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 5 violations for this system; none is 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 Shawnee Correctional Center's water quality report?
As a community water system, Shawnee 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 Johnson County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Burnside PWD | Johnson | 2,702 | Community | Purchased surface water |
| Vienna | Johnson | 1,618 | Community | Surface water |
| Goreville | Johnson | 1,068 | Community | Purchased surface water |
| Vienna Correctional Center | Johnson | 501 | Community | Surface water |
| Belknap | Johnson | 490 | Community | Groundwater |
| Twice the Ice Vienna | Johnson | 25 | Transient non-community | Purchased 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, “Shawnee Correctional Center, PWSID IL0870010, Illinois”, https://aquacensus.com/water-systems/illinois/shawnee-correctional-center-il0870010 (data as of October 1, 2026).