Is OHIO required to publish a Consumer Confidence Report?

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

OHIO’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.

OHIO, IL · Bureau County

OHIO Water System

Consumer Confidence Report status

OHIO 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 OHIO.

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): IL0110800
System type: Community Water System
Population served: 465
Service connections: 246
Ownership: local government
Water source: groundwater (wells)

OHIO is one of 1,572 community water systems in Illinois in the 500 or fewer people size category, serving 465 people from groundwater.

As of August 1, 2026, its federal record holds 9 entries between 1977 and 2009, all of which EPA lists as closed. Nothing has been added since 2009.

Of the 9, 2 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 inorganic chemicals, volatile organic chemicals, and the Radionuclides and Revised Rad Rule.

Violation history

Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2009 – December 31, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2009 – June 30, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2008 – December 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2008 – September 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2007 – December 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2006 – December 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2006 – June 30, 2006
Resolved
Monitoring, Regular
—
Carbon tetrachloride
October 1, 1991 – December 31, 1991
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
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, 2009 – December 31, 2009	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
April 1, 2009 – June 30, 2009	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2008 – December 31, 2008	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2008 – September 30, 2008	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2007 – December 31, 2007	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2006 – December 31, 2006	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
April 1, 2006 – June 30, 2006	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 1991 – December 31, 1991	Monitoring, Regular	Carbon tetrachloride	—	Resolved
June 30, 1977 – June 29, 1981	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

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

Enforcement actions

June 30, 2010State Compliance achieved1 linked violation
March 5, 2010State Compliance achieved16 linked violations
January 20, 2010State Violation/Reminder Notice1 linked violation
November 9, 2009State Public Notification received1 linked violation
October 30, 2009State Violation/Reminder Notice1 linked violation
October 20, 2009State Violation/Reminder Notice1 linked violation
October 20, 2009State Public Notification requested1 linked violation
August 2, 2009State Public Notification received1 linked violation
July 15, 2009State Violation/Reminder Notice1 linked violation
July 15, 2009State Public Notification requested1 linked violation
May 4, 2009State Public Notification received1 linked violation
April 21, 2009State Violation/Reminder Notice1 linked violation
April 21, 2009State Public Notification requested1 linked violation
January 31, 2009State Public Notification received1 linked violation
January 15, 2009State Violation/Reminder Notice1 linked violation
January 15, 2009State Public Notification requested1 linked violation
November 3, 2008State Public Notification received1 linked violation
October 27, 2008State Violation/Reminder Notice1 linked violation
October 27, 2008State Public Notification requested1 linked violation
August 5, 2008State Public Notification received1 linked violation
July 16, 2008State Violation/Reminder Notice1 linked violation
July 16, 2008State Public Notification requested1 linked violation
May 1, 2008State Public Notification received1 linked violation
April 16, 2008State Violation/Reminder Notice1 linked violation
April 16, 2008State Public Notification requested1 linked violation
April 2, 2008State Bilateral Compliance Agreement signed1 linked violation
March 25, 2008State Compliance achieved1 linked violation
March 11, 2008State Public Notification received1 linked violation
March 3, 2008State Formal Notice of Violation issued1 linked violation
February 13, 2008State Violation/Reminder Notice1 linked violation
February 13, 2008State Public Notification requested1 linked violation
January 29, 2008State Public Notification received1 linked violation
January 16, 2008State Violation/Reminder Notice1 linked violation
January 16, 2008State Public Notification requested1 linked violation
October 30, 2007State Public Notification received1 linked violation
October 15, 2007State Public Notification requested1 linked violation
October 15, 2007State Violation/Reminder Notice1 linked violation
August 2, 2007State Public Notification received1 linked violation
July 17, 2007State Public Notification requested1 linked violation
July 17, 2007State Violation/Reminder Notice1 linked violation
May 5, 2007State Public Notification received1 linked violation
April 12, 2007State Violation/Reminder Notice1 linked violation
April 12, 2007State Public Notification requested1 linked violation
February 3, 2007State Public Notification received1 linked violation
January 3, 2007State Violation/Reminder Notice1 linked violation
January 3, 2007State Public Notification requested1 linked violation
November 8, 2006State Public Notification received1 linked violation
October 11, 2006State Violation/Reminder Notice1 linked violation
October 11, 2006State Public Notification requested1 linked violation
August 11, 2006State Public Notification received1 linked violation
July 31, 2006State Violation/Reminder Notice1 linked violation
July 31, 2006State Public Notification requested1 linked violation
June 22, 2006State Bilateral Compliance Agreement signed16 linked violations
May 15, 2006State Public Notification received1 linked violation
April 13, 2006State Formal Notice of Violation issued16 linked violations
April 10, 2006State Violation/Reminder Notice1 linked violation
April 10, 2006State Public Notification requested1 linked violation
February 19, 1993State Compliance achieved7 linked violations
August 29, 1992State Violation/Reminder Notice1 linked violation
August 29, 1992State Public Notification requested1 linked violation
August 24, 1992State Public Notification received1 linked violation
March 11, 1992State Public Notification requested7 linked violations
October 1, 1991State Public Notification requested7 linked violations
October 1, 1991State Violation/Reminder Notice7 linked violations
September 29, 1991State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
September 9, 1991State Public Notification received1 linked violation
August 31, 1991State Violation/Reminder Notice1 linked violation
August 31, 1991State Public Notification requested1 linked violation

Common questions

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

THOMAS, CHARLES L.

815-376-6446

OHIO, IL 61349