Is WINFIELD required to publish a Consumer Confidence Report?

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

WINFIELD’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.

WINFIELD, IL · DuPage County

WINFIELD Water System

Consumer Confidence Report status

WINFIELD 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 WINFIELD.

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): IL0431150
System type: Community Water System
Population served: 9,835
Service connections: 3,830
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

WINFIELD is one of 248 community water systems in Illinois in the 3,301 to 10,000 people size category, serving 9,835 people from surface water.

As of August 1, 2026, its federal record holds 12 entries between 1977 and 2020, all of which EPA lists as closed. Nothing has been added since 2020.

Of the 12, 11 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 Total Coliform Rules, the Radionuclides and Revised Rad Rule, and the Lead and Copper Rule.

Violation history

Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2020 – January 18, 2021
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 1999 – June 30, 1999
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
April 1, 1999 – April 30, 1999
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
March 1, 1999 – March 31, 1999
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
April 1, 1997 – April 30, 1997
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
March 1, 1997 – March 31, 1997
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
December 1, 1995 – December 31, 1995
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
March 1, 1994 – March 31, 1994
Archived
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
March 1, 1994 – March 31, 1994
Archived
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 1994 – March 31, 1994
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 1994 – March 31, 1994
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
December 30, 2020 – January 18, 2021	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
June 1, 1999 – June 30, 1999	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
April 1, 1999 – April 30, 1999	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
March 1, 1999 – March 31, 1999	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
April 1, 1997 – April 30, 1997	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
March 1, 1997 – March 31, 1997	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
December 1, 1995 – December 31, 1995	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
March 1, 1994 – March 31, 1994	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
March 1, 1994 – March 31, 1994	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Archived
January 1, 1994 – March 31, 1994	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived
January 1, 1994 – March 31, 1994	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	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

September 15, 2001State Violation/Reminder Notice2 linked violations
September 15, 2001State Public Notification requested2 linked violations
June 15, 1999State Violation/Reminder Notice1 linked violation
June 15, 1999State Public Notification requested1 linked violation
May 15, 1999State Public Notification requested1 linked violation
May 15, 1999State Violation/Reminder Notice1 linked violation
July 12, 1997State Public Notification received2 linked violations
June 28, 1997State Violation/Reminder Notice1 linked violation
June 28, 1997State Public Notification requested1 linked violation
May 24, 1997State Public Notification requested1 linked violation
May 24, 1997State Violation/Reminder Notice1 linked violation
March 6, 1996State Public Notification received1 linked violation
February 25, 1996State Violation/Reminder Notice1 linked violation
February 25, 1996State Public Notification requested1 linked violation
May 12, 1994State Violation/Reminder Notice1 linked violation
May 12, 1994State Violation/Reminder Notice2 linked violations
May 12, 1994State Public Notification requested2 linked violations
May 12, 1994State Public Notification requested1 linked violation
May 12, 1994State Public Notification requested1 linked violation
April 1, 1994State Public Notification requested2 linked violations
April 1, 1994State Violation/Reminder Notice1 linked violation
April 1, 1994State Public Notification requested1 linked violation
April 1, 1994State Public Notification requested2 linked violations
April 1, 1994State Violation/Reminder Notice1 linked violation
April 1, 1994State Violation/Reminder Notice2 linked violations
November 3, 1990State Public Notification requested2 linked violations

Common questions

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

SUMMERS, EVAN K

630-933-2125

WINFIELD, IL 60190