Is WENONA required to publish a Consumer Confidence Report?

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

WENONA’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.

WENONA, IL · Marshall County

WENONA Water System

Consumer Confidence Report status

WENONA 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 1 item for WENONA that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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): IL1234950
System type: Community Water System
Population served: 974
Service connections: 541
Ownership: local government
Water source: groundwater (wells)

WENONA is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 974 people from groundwater.

As of August 1, 2026, its federal record holds 17 entries between 1977 and 2025, of which 1 remains open; none are health-based.

Of the 17, 7 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 Radionuclides and Revised Rad Rule, the Lead and Copper Rule, and the Total Coliform Rules.

Violation history

Notification, Known or Potential LSL
—
LEAD AND COPPER RULE REVISIONS
July 2, 2025
Unaddressed
Public Notification Violation for NPDWR Violation
—
Public Notice
January 3, 2025 – January 7, 2025
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2025 – December 31, 2025
Archived
LSL Reporting
—
LEAD AND COPPER RULE REVISIONS
October 17, 2024 – April 7, 2025
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
July 1, 2024 – September 30, 2024
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
April 1, 2024 – June 30, 2024
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2011 – July 12, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 1998 – May 18, 1999
Resolved
Public Education
Health-based
Lead and Copper Rule
January 1, 1994 – September 9, 1996
Resolved
OCCT/SOWT Study/Recommendation
Health-based
Lead and Copper Rule
January 1, 1994 – January 10, 1995
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 1992 – July 31, 1992
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 1992 – July 27, 1993
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1991 – November 30, 1991
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
June 1, 1989 – August 14, 1992
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 1988 – December 31, 1991
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 25, 1984 – January 24, 1988
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived

Unaddressed no corrective action on record yetResolved 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 2, 2025	Notification, Known or Potential LSL	LEAD AND COPPER RULE REVISIONS	—	Unaddressed
January 3, 2025 – January 7, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Archived
October 17, 2024 – April 7, 2025	LSL Reporting	LEAD AND COPPER RULE REVISIONS	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
July 1, 2011 – July 12, 2011	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 1998 – May 18, 1999	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 1994 – September 9, 1996	Public Education	Lead and Copper Rule	Health-based	Resolved
January 1, 1994 – January 10, 1995	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Health-based	Resolved
July 1, 1992 – July 31, 1992	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
January 1, 1992 – July 27, 1993	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
November 1, 1991 – November 30, 1991	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
June 1, 1989 – August 14, 1992	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
January 1, 1988 – December 31, 1991	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 25, 1984 – January 24, 1988	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
June 30, 1977 – June 29, 1981	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

October 14, 2025State Violation/Reminder Notice1 linked violation
July 3, 2025State Public Notification requested1 linked violation
July 2, 2025State Public Notification requested1 linked violation
May 7, 2025State Public Notification received2 linked violations
May 7, 2025State Public Notification received1 linked violation
April 7, 2025State Compliance achieved1 linked violation
March 31, 2025State Administrative/Compliance Order without penalty issued1 linked violation
January 7, 2025State Compliance achieved1 linked violation
December 3, 2024State Public Notification requested1 linked violation
November 20, 2024State Compliance achieved2 linked violations
October 11, 2024State Public Notification requested1 linked violation
July 11, 2024State Public Notification requested1 linked violation
July 12, 2011State Compliance achieved1 linked violation
May 18, 1999State Compliance achieved1 linked violation
September 9, 1996State Compliance achieved2 linked violations
March 13, 1996State Public Notification requested1 linked violation
March 13, 1996State Violation/Reminder Notice1 linked violation
January 10, 1995State Compliance achieved1 linked violation
July 27, 1993State Compliance achieved3 linked violations
October 11, 1992State Public Notification requested2 linked violations
October 11, 1992State Violation/Reminder Notice3 linked violations
June 26, 1992State Public Notification received2 linked violations
May 7, 1992State Public Notification requested2 linked violations
March 12, 1992State Public Notification requested2 linked violations
January 11, 1992State Public Notification requested1 linked violation
December 15, 1991State Public Notification received2 linked violations
September 26, 1991State Public Notification received2 linked violations
July 13, 1991State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
May 22, 1991State Public Notification received8 linked violations
February 27, 1991State Public Notification received2 linked violations
December 18, 1990State Public Notification requested2 linked violations
October 14, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
October 14, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
September 12, 1990State Public Notification requested2 linked violations
August 15, 1990State Public Notification received2 linked violations
May 23, 1990State Public Notification requested2 linked violations
May 21, 1990State Public Notification received2 linked violations
March 15, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
March 15, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 1, 1990State Public Notification received64 linked violations
May 2, 1989State Public Notification received3 linked violations
April 12, 1989State Public Notification requested2 linked violations

Common questions

Is WENONA required to publish a Consumer Confidence Report?: Yes. WENONA 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 WENONA’s next Consumer Confidence Report due?: WENONA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does WENONA have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 1 item for WENONA that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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

BADE, JANIE

815-674-4768

WENONA, IL 61377