Public water system · IL1210200
ActiveJunction City
At a glance
Junction City (PWSID IL1210200) is an active community water system in Marion County, Illinois. It reports serving 494 people through 212 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 3 violations for this system; none is health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
494
Service connections
212
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Junction City compare with other water systems in Marion County?
By EPA's size categories, Junction City is a very small system (500 people or fewer). Marion County has 18 active public water systems. Its population served is well below the county average of 2,372 people per system, and accounts for 1.2% of the 42,699 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 Junction City 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 Junction City?
EPA lists Junction City as owned by a local 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. 11 of the 18 active systems in Marion County (61%) are also owned by a local government.
Does Junction City have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in October 2024. The violations listed here began between May 2014 and October 2024. By type: 3 monitoring and reporting. The contaminant or rule involved most often is Haloacetic acids (HAA5) (2 of them). EPA lists 3 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 |
|---|---|---|---|---|
| 2024-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2014-05-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2014-05-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
All 3 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.
Junction City: frequently asked questions
Who runs Junction City?
Junction City (PWSID IL1210200) is a community water system owned by a local government. It is regulated by the IL state drinking water program.
How many people does Junction City serve?
Junction City reports serving 494 people through 212 service connections in Marion County, Illinois.
Where does Junction City 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 Junction City have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in October 2024. 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 Junction City'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 3 violations for this system; none is health-based, and the most recent began in October 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.
Where can I find Junction City's water quality report?
As a community water system, Junction City 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 Marion County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Centralia | Marion | 12,182 | Community | Surface water |
| Salem | Marion | 7,905 | Community | Surface water |
| Raccoon Water Company | Marion | 7,080 | Community | Purchased surface water |
| North East Marion County Water Cmpny | Marion | 3,220 | Community | Purchased surface water |
| Fmc Water Company | Marion | 2,945 | Community | Purchased surface water |
| Odin | Marion | 2,543 | 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, “Junction City, PWSID IL1210200, Illinois”, https://aquacensus.com/water-systems/illinois/junction-city-il1210200 (data as of October 1, 2026).