Public water system · IL1595050
ActiveWest Liberty-Dundas Water District
At a glance
West Liberty-Dundas Water District (PWSID IL1595050) is an active community water system in Richland County, Illinois. It reports serving 563 people through 225 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 10 violations for this system; 3 are health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
563
Service connections
225
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does West Liberty-Dundas Water District compare with other water systems in Richland County?
By EPA's size categories, West Liberty-Dundas Water District is a small system (501 to 3,300 people). Richland County has 9 active public water systems, and West Liberty-Dundas Water District is the 3rd-largest of them by population served. Its population served is about half of the county average of 1,231 people per system, and accounts for 5.1% of the 11,075 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 West Liberty-Dundas Water District 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 West Liberty-Dundas Water District?
EPA lists West Liberty-Dundas Water District 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. 6 of the 9 active systems in Richland County (67%) are also owned by a local government.
Does West Liberty-Dundas Water District have drinking water violations?
EPA's records list 10 violations for this system; 3 are health-based, and the most recent began in July 2025. The violations listed here began between June 1977 and July 2025. By type: 4 monitoring and reporting, 3 contaminant level above the legal limit, 2 public notice, recordkeeping or other and 1 reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 6 as archived, 3 as resolved and 1 as unaddressed. 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. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Unaddressed |
| 2022-08-10 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2022-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2004-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1999-03-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1999-03-01 | Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1998-08-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1992-02-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1992-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1977-06-30 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
All 10 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.
West Liberty-Dundas Water District: frequently asked questions
Who runs West Liberty-Dundas Water District?
West Liberty-Dundas Water District (PWSID IL1595050) is a community water system owned by a local government. It is regulated by the IL state drinking water program.
How many people does West Liberty-Dundas Water District serve?
West Liberty-Dundas Water District reports serving 563 people through 225 service connections in Richland County, Illinois.
Where does West Liberty-Dundas Water District 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 West Liberty-Dundas Water District have any drinking water violations?
EPA's records list 10 violations for this system; 3 are 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 West Liberty-Dundas Water District'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 10 violations for this system; 3 are 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 West Liberty-Dundas Water District's water quality report?
As a community water system, West Liberty-Dundas Water District 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 Richland County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Olney | Richland | 8,877 | Community | Surface water |
| Noble | Richland | 805 | Community | Purchased surface water |
| Parkersburg | Richland | 356 | Community | Purchased surface water |
| Claremont | Richland | 190 | Community | Groundwater |
| Calhoun | Richland | 172 | Community | Groundwater |
| Acorn Acres MHP | Richland | 52 | 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, “West Liberty-Dundas Water District, PWSID IL1595050, Illinois”, https://aquacensus.com/water-systems/illinois/west-liberty-dundas-water-district-il1595050 (data as of October 1, 2026).