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Public water system record

West Liberty-Dundas Water District

Serves an area of Richland County, IL that includes Dundas · 484 people served

Federal records show 1 health-based violation and 2 monitoring/reporting issues for West Liberty-Dundas Water District in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • IL1595050
  • DUNDAS
  • IL
  • 484 served

System profile

Source water Purchased surface water
ZIP 62425
EPA system ID IL1595050

Verify this system on EPA ECHO →

Health-based violations, last 10 years
1
Resolved
1
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
2

Key facts

  • West Liberty-Dundas Water District buys its water from Olney.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit), 2022.
  • Most recent formal enforcement: compliance order (no penalty) by Illinois, October 2022.
  • Record on file since 1977, with 2 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 90 unknown out of 226 service lines.

Check whether West Liberty-Dundas Water District serves your address

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Apr 1, 2022 Resolved No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
LEAD AND COPPER RULE REVISIONS
RPT
 Jul 2, 2025 Active
Public Notice
OTHER
 Aug 10, 2022 Resolved

Full record since 1977

EPA's records for West Liberty-Dundas Water District go back to 1977. Before October 19, 2016 they list 2 health-based violations (2 archived by EPA without a recorded fix) and 5 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1970s 0 1
1990s 2 3
2000s 0 1
2020s 1 2

Most recent health-based violation before October 19, 2016: Total Coliform, began March 1999, Archived.

Show all 2 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
 Mar 1, 1999 Archived
Total Coliform
Contaminant limit exceeded
 Jan 1, 1992 Archived

Enforcement actions

Illinois regulators took 1 formal enforcement action against West Liberty-Dundas Water District in 2022. The most recent was a compliance order (no penalty) in October 2022.

Date By Action Violations covered
Oct 14, 2022 Illinois Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)

What the violations mean

Total Trihalomethanes (TTHMs)

1 incident

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

West Liberty-Dundas Water District buys its water from Olney. It lists no wells or intakes of its own.

Buys water from

Annual water quality report

West Liberty-Dundas Water District must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask West Liberty-Dundas Water District for a copy.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Illinois.

Certified drinking water labs by state EPA guidance for private wells