Is IOLA required to publish a Consumer Confidence Report?

Yes. IOLA 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 IOLA’s next Consumer Confidence Report due?

IOLA’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.

IOLA, IL · Clay County

IOLA Water System

Consumer Confidence Report status

IOLA 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 IOLA.

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): IL0250010
System type: Community Water System
Population served: 158
Service connections: 61
Ownership: local government
Water source: groundwater (wells)

IOLA is one of 1,572 community water systems in Illinois in the 500 or fewer people size category, serving 158 people from groundwater.

As of August 1, 2026, its federal record holds 11 entries between 1994 and 2019, all of which EPA lists as closed. Nothing has been added since 2019.

Of the 11, 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 Stage 1 Disinfectants and Disinfection Byproducts Rule, the Total Coliform Rules, and the Lead and Copper Rule.

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2019 – July 14, 2020
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2012 – February 27, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2005 – December 31, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2005 – September 30, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2005 – September 30, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2005 – June 30, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2005 – June 30, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2005 – March 31, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 1995 – May 31, 1995
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1994 – August 31, 1994
Archived

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
October 1, 2019 – July 14, 2020	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2012 – February 27, 2012	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2005 – December 31, 2005	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2005 – September 30, 2005	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2005 – September 30, 2005	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2005 – June 30, 2005	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 2005 – June 30, 2005	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2005 – March 31, 2005	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2004 – December 31, 2004	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
May 1, 1995 – May 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
August 1, 1994 – August 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived

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

Enforcement actions

July 14, 2020State Compliance achieved1 linked violation
June 15, 2020State Public Notification received1 linked violation
November 4, 2019State Public Notification requested1 linked violation
November 4, 2019State Violation/Reminder Notice1 linked violation
February 27, 2012State Compliance achieved1 linked violation
February 16, 2012State Violation/Reminder Notice1 linked violation
January 24, 2006State Compliance achieved5 linked violations
December 12, 2005State Public Notification received1 linked violation
November 29, 2005State Violation/Reminder Notice1 linked violation
November 29, 2005State Public Notification requested1 linked violation
October 18, 2005State Compliance achieved2 linked violations
September 27, 2005State Public Notification requested2 linked violations
September 27, 2005State Violation/Reminder Notice1 linked violation
September 15, 2005State Bilateral Compliance Agreement signed3 linked violations
July 12, 2005State Formal Notice of Violation issued1 linked violation
July 7, 2005State Violation/Reminder Notice1 linked violation
July 7, 2005State Public Notification requested1 linked violation
June 27, 2005State Public Notification received2 linked violations
June 17, 2005State Bilateral Compliance Agreement signed3 linked violations
May 19, 2005State Public Notification requested1 linked violation
May 19, 2005State Violation/Reminder Notice1 linked violation
May 13, 2005State Public Notification received1 linked violation
April 5, 2005State Violation/Reminder Notice1 linked violation
April 5, 2005State Public Notification requested1 linked violation
February 2, 2005State Formal Notice of Violation issued3 linked violations
January 28, 2005State Public Notification received1 linked violation
January 11, 2005State Public Notification requested1 linked violation
January 11, 2005State Violation/Reminder Notice1 linked violation
July 15, 1995State Public Notification requested1 linked violation
July 15, 1995State Violation/Reminder Notice1 linked violation
October 15, 1994State Public Notification requested1 linked violation
October 15, 1994State Violation/Reminder Notice1 linked violation

Common questions

Is IOLA required to publish a Consumer Confidence Report?: Yes. IOLA 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 IOLA’s next Consumer Confidence Report due?: IOLA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does IOLA have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for IOLA.
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

BUTTS, MIKE

618-367-3663

IOLA, IL 62838