WINFIELD, IL · DuPage County

WINFIELD Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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)

Violation history

Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2020 – January 18, 2021
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
July 1, 2001 – July 31, 2001
Archived
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)
March 1, 1997 – March 31, 1997
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
December 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
April 1, 1994 – June 30, 1994
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
July 1, 2001 – July 31, 2001	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Archived
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
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
April 1, 1994 – June 30, 1994	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	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

January 18, 2021State Compliance achieved1 linked violation
September 15, 2001State Violation/Reminder Notice2 linked violations
June 15, 1999State Violation/Reminder Notice1 linked violation
June 15, 1999State Public Notification requested1 linked violation
May 15, 1999State Violation/Reminder Notice1 linked violation
May 15, 1999State Public Notification requested1 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 Public Notification requested1 linked violation
February 25, 1996State Violation/Reminder Notice1 linked violation
May 12, 1994State Violation/Reminder Notice1 linked violation
May 12, 1994State Public Notification requested1 linked violation
May 12, 1994State Public Notification requested1 linked violation
May 12, 1994State Public Notification requested2 linked violations
May 12, 1994State Violation/Reminder Notice2 linked violations
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 Violation/Reminder Notice1 linked violation
April 1, 1994State Violation/Reminder Notice2 linked violations
November 3, 1990State Public Notification requested2 linked violations

Contact

SUMMERS, EVAN K

630-933-2125

WINFIELD, IL 60190