ONARGA, IL · Iroquois County

ONARGA Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Illinois’s official records. Always confirm current status with Illinois before making decisions based on this information.

System facts

System ID (PWSID): IL0750700
System type: Community Water System
Population served: 1,409
Service connections: 500
Ownership: local government
Water source: groundwater (wells)

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
October 16, 2024 – December 3, 2024
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 16, 2024 – December 3, 2024
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
August 1, 2023 – August 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2023 – September 25, 2023
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2020 – July 17, 2020
Resolved
OCCT/SOWT Study/Recommendation
Health-based
Lead and Copper Rule
January 1, 1994 – January 25, 1995
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
October 16, 2024 – December 3, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 16, 2024 – December 3, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
August 1, 2023 – August 31, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2023 – September 25, 2023	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2020 – July 17, 2020	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 1994 – January 25, 1995	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

December 9, 2024State Public Notification received1 linked violation
December 9, 2024State Public Notification received1 linked violation
December 3, 2024State Compliance achieved1 linked violation
December 3, 2024State Compliance achieved1 linked violation
November 19, 2024State Violation/Reminder Notice1 linked violation
November 19, 2024State Violation/Reminder Notice1 linked violation
October 16, 2023State Violation/Reminder Notice1 linked violation
October 16, 2023State Public Notification requested1 linked violation
October 16, 2023State Violation/Reminder Notice1 linked violation
October 16, 2023State Public Notification requested1 linked violation
September 25, 2023State Compliance achieved1 linked violation
September 11, 2023State Compliance achieved1 linked violation
October 14, 2022State Public Notification received1 linked violation
February 15, 2022State Compliance achieved1 linked violation
January 19, 2022State Violation/Reminder Notice1 linked violation
January 19, 2022State Public Notification requested1 linked violation
July 21, 2020State Violation/Reminder Notice1 linked violation
July 17, 2020State Compliance achieved1 linked violation
March 31, 2001State Compliance achieved3 linked violations
January 25, 1995State Compliance achieved1 linked violation

Contact

HAMILTON, TIM

815-268-7311

ONARGA, IL 60955