Is WINNEBAGO required to publish a Consumer Confidence Report?

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

WINNEBAGO’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.

WINNEBAGO, IL · Winnebago County

WINNEBAGO Water System

Consumer Confidence Report status

WINNEBAGO 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 WINNEBAGO.

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): IL2010500
System type: Community Water System
Population served: 2,940
Service connections: 1,212
Ownership: local government
Water source: groundwater (wells)

WINNEBAGO is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 2,940 people from groundwater.

As of August 1, 2026, its federal record holds 21 entries between 1977 and 2002, all of which EPA lists as closed. Nothing has been added since 2002.

Of the 21, 19 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 volatile organic chemicals, the Total Coliform Rules, and the Radionuclides and Revised Rad Rule.

Violation history

Monitoring, Regular
—
Styrene
October 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
CHLOROBENZENE
October 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Benzene
October 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Toluene
October 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Ethylbenzene
October 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
October 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Xylenes, Total
October 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
October 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
October 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
October 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
October 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
October 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
October 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Carbon tetrachloride
October 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Trichloroethylene
October 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
October 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Tetrachloroethylene
October 1, 2002 – December 31, 2002
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
February 1, 1999 – February 28, 1999
Archived
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
June 1, 1993 – June 30, 1993
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 1993 – June 30, 1993
Archived
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, 2002 – December 31, 2002	Monitoring, Regular	Styrene	—	Resolved
October 1, 2002 – December 31, 2002	Monitoring, Regular	CHLOROBENZENE	—	Resolved
October 1, 2002 – December 31, 2002	Monitoring, Regular	Benzene	—	Resolved
October 1, 2002 – December 31, 2002	Monitoring, Regular	Toluene	—	Resolved
October 1, 2002 – December 31, 2002	Monitoring, Regular	Ethylbenzene	—	Resolved
October 1, 2002 – December 31, 2002	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
October 1, 2002 – December 31, 2002	Monitoring, Regular	Xylenes, Total	—	Resolved
October 1, 2002 – December 31, 2002	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
October 1, 2002 – December 31, 2002	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
October 1, 2002 – December 31, 2002	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
October 1, 2002 – December 31, 2002	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
October 1, 2002 – December 31, 2002	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
October 1, 2002 – December 31, 2002	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
October 1, 2002 – December 31, 2002	Monitoring, Regular	Carbon tetrachloride	—	Resolved
October 1, 2002 – December 31, 2002	Monitoring, Regular	Trichloroethylene	—	Resolved
October 1, 2002 – December 31, 2002	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
October 1, 2002 – December 31, 2002	Monitoring, Regular	Tetrachloroethylene	—	Resolved
February 1, 1999 – February 28, 1999	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
June 1, 1993 – June 30, 1993	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Archived
June 1, 1993 – June 30, 1993	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
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

March 26, 2003State Public Notification requested20 linked violations
March 26, 2003State Violation/Reminder Notice20 linked violations
January 21, 2003State Compliance achieved20 linked violations
April 15, 1999State Violation/Reminder Notice1 linked violation
September 19, 1993State Public Notification requested1 linked violation
September 19, 1993State Violation/Reminder Notice1 linked violation
August 14, 1993State Public Notification requested2 linked violations
August 14, 1993State Violation/Reminder Notice2 linked violations
September 20, 1992State Violation/Reminder Notice1 linked violation
September 20, 1992State Public Notification requested1 linked violation

Common questions

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

INSKO, CHAD

815-985-8635

WINNEBAGO, IL 61088