MOUNT VERNON, IL · Jefferson County

MOUNT VERNON 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): IL0810300
System type: Community Water System
Population served: 15,793
Service connections: 6,655
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2024 – December 6, 2024
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2023 – December 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2023 – June 30, 2023
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2020 – January 14, 2021
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 2007 – July 31, 2007
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2004 – July 23, 2004
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2000 – June 30, 2000
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
May 23, 1990 – October 1, 1990
Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2024 – December 6, 2024	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
December 30, 2020 – January 14, 2021	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2007 – July 31, 2007	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 2004 – July 23, 2004	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
June 1, 2000 – June 30, 2000	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
May 23, 1990 – October 1, 1990	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

December 6, 2024State Compliance achieved1 linked violation
October 15, 2024State Violation/Reminder Notice1 linked violation
June 25, 2024State Public Notification received1 linked violation
June 25, 2024State Public Notification received1 linked violation
March 4, 2024State Compliance achieved1 linked violation
January 12, 2024State Violation/Reminder Notice1 linked violation
January 12, 2024State Public Notification requested1 linked violation
September 2, 2023State Compliance achieved1 linked violation
July 11, 2023State Violation/Reminder Notice1 linked violation
July 11, 2023State Public Notification requested1 linked violation
January 14, 2021State Compliance achieved1 linked violation
January 6, 2021State Violation/Reminder Notice1 linked violation
July 24, 2017State Compliance achieved1 linked violation
June 24, 2008State Public Notification received2 linked violations
February 1, 2008State Compliance achieved1 linked violation
August 16, 2007State Public Notification requested3 linked violations
September 23, 2005State Compliance achieved1 linked violation
August 15, 2000State Public Notification requested9 linked violations
October 1, 1990State Compliance achieved2 linked violations
June 22, 1990State Public Notification received1 linked violation
September 9, 1989State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
October 9, 1988State Public Notification requested1 linked violation
October 9, 1988State Violation/Reminder Notice2 linked violations
October 1, 1988State Violation/Reminder Notice1 linked violation

Contact

MCKENNA, NATHAN

618-242-6802

MOUNT VERNON, IL 62864