Is MOUNT VERNON required to publish a Consumer Confidence Report?

Yes. MOUNT VERNON is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is MOUNT VERNON’s next Consumer Confidence Report due?

MOUNT VERNON’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

MOUNT VERNON, IL · Jefferson County

MOUNT VERNON Water System

Consumer Confidence Report status

MOUNT VERNON must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for MOUNT VERNON.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)

MOUNT VERNON is one of 225 community water systems in Illinois in the 10,001 to 100,000 people size category, serving 15,793 people from surface water.

As of August 1, 2026, its federal record holds 8 entries between 1990 and 2024, all of which EPA lists as closed.

Of the 8, 4 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Consumer Confidence Rule, the Stage 2 Disinfectants and Disinfection Byproducts Rule, and the Total Coliform Rules.

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
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2017 – July 24, 2017
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 2007 – July 31, 2007
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, 2017 – July 24, 2017	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2007 – July 31, 2007	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	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
July 17, 2017State Violation/Reminder Notice2 linked violations
June 24, 2008State Public Notification received2 linked violations
February 1, 2008State Compliance achieved1 linked violation
August 16, 2007State Public Notification requested3 linked violations
August 16, 2007State Violation/Reminder Notice6 linked violations
September 23, 2005State Compliance achieved1 linked violation
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 Violation/Reminder Notice2 linked violations
October 1, 1988State Public Notification requestedgeneral compliance action — not tied to a specific violation on record

Common questions

Is MOUNT VERNON required to publish a Consumer Confidence Report?: Yes. MOUNT VERNON is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is MOUNT VERNON’s next Consumer Confidence Report due?: MOUNT VERNON’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MOUNT VERNON have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for MOUNT VERNON.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

MCKENNA, NATHAN

618-242-6802

MOUNT VERNON, IL 62864