FREEPORT, IL · Stephenson County

WINSLOW Water System

Current status

1 open health-based violation on record as of July 4, 2026, alongside 5 other open item(s). See the violation history below for contaminant and status details.

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): IL1770550
System type: Community Water System
Population served: 350
Service connections: 160
Ownership: local government
Water source: groundwater (wells)

Violation history

Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2025
Unaddressed
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
July 1, 2025
Unaddressed
Public Notification Violation for NPDWR Violation
—
Public Notice
January 16, 2025
Unaddressed
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2025
Unaddressed
LSL Inventory
Health-based
LEAD AND COPPER RULE REVISIONS
October 17, 2024
Unaddressed
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2024 – July 8, 2025
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2024 – July 9, 2024
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2023
Unaddressed
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2022 – August 3, 2022
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2021 – September 30, 2021
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2021 – June 30, 2021
Resolved
OCCT/SOWT Treatment Installation/Demonstration
Health-based
Lead and Copper Rule
May 2, 2020 – April 23, 2021
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
May 2, 2020 – December 21, 2020
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2018 – December 31, 2020
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 2009 – June 30, 2009
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 2009 – May 31, 2009
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
May 1, 2009 – May 31, 2009
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2009 – June 30, 2009
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2007 – August 31, 2007
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2007 – July 31, 2007
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2007 – June 30, 2007
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
October 1, 2006 – October 31, 2006
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
February 8, 2006 – April 3, 2006
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
February 8, 2006 – April 3, 2006
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2001 – October 31, 2001
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
January 1, 1995 – December 31, 1995
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 1, 2025	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Unaddressed
July 1, 2025	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
January 16, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
January 1, 2025	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
October 17, 2024	LSL Inventory	LEAD AND COPPER RULE REVISIONS	Health-based	Unaddressed
July 1, 2024 – July 8, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2024 – July 9, 2024	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2023	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Unaddressed
July 1, 2022 – August 3, 2022	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2021 – June 30, 2021	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
May 2, 2020 – April 23, 2021	OCCT/SOWT Treatment Installation/Demonstration	Lead and Copper Rule	Health-based	Resolved
May 2, 2020 – December 21, 2020	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2018 – December 31, 2020	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
June 1, 2009 – June 30, 2009	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
May 1, 2009 – May 31, 2009	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
May 1, 2009 – May 31, 2009	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
August 1, 2007 – August 31, 2007	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2007 – July 31, 2007	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
June 1, 2007 – June 30, 2007	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2006 – October 31, 2006	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
February 8, 2006 – April 3, 2006	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
February 8, 2006 – April 3, 2006	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 1, 2001 – October 31, 2001	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 1995 – December 31, 1995	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	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

September 2, 2025State Violation/Reminder Notice1 linked violation
August 25, 2025State Public Notification received1 linked violation
July 29, 2025State Public Notification requested1 linked violation
July 29, 2025State Violation/Reminder Notice1 linked violation
July 22, 2025State Violation/Reminder Notice1 linked violation
July 22, 2025State Public Notification requested1 linked violation
July 8, 2025State Compliance achieved1 linked violation
April 17, 2025State Public Notification received1 linked violation
February 18, 2025State Violation/Reminder Notice1 linked violation
January 21, 2025State Public Notification requested1 linked violation
January 21, 2025State Violation/Reminder Notice1 linked violation
July 31, 2024State Violation/Reminder Notice1 linked violation
July 9, 2024State Compliance achieved1 linked violation
January 16, 2024State Violation/Reminder Notice1 linked violation
January 16, 2024State Public Notification requested1 linked violation
December 19, 2023State Violation/Reminder Notice1 linked violation
August 3, 2022State Compliance achieved1 linked violation
July 18, 2022State Violation/Reminder Notice1 linked violation
December 3, 2021State Public Notification received1 linked violation
November 24, 2021State Compliance achieved2 linked violations
August 20, 2021State Violation/Reminder Notice1 linked violation
July 28, 2021State Compliance achieved1 linked violation
July 14, 2021State Violation/Reminder Notice1 linked violation
April 23, 2021State Compliance achieved1 linked violation
January 12, 2021State Bilateral Compliance Agreement signed1 linked violation
December 28, 2020State Public Notification received1 linked violation
December 21, 2020State Compliance achieved1 linked violation
October 21, 2020State Violation/Reminder Notice1 linked violation
October 21, 2020State Public Notification requested1 linked violation
October 15, 2020State Violation/Reminder Notice1 linked violation
September 21, 2020State Formal Notice of Violation issued1 linked violation
July 15, 2020State Public Notification requested1 linked violation
July 15, 2020State Violation/Reminder Notice1 linked violation
June 9, 2010State Public Notification received4 linked violations
April 14, 2010State Violation/Reminder Notice1 linked violation
April 14, 2010State Compliance achieved1 linked violation
April 14, 2010State Public Notification requested1 linked violation
January 1, 2010State Compliance achieved3 linked violations
July 14, 2009State Public Notification requested1 linked violation
July 14, 2009State Violation/Reminder Notice1 linked violation
July 14, 2009State Public Notification requested1 linked violation
July 14, 2009State Violation/Reminder Notice1 linked violation
July 14, 2009State Compliance achieved1 linked violation
July 1, 2009State Public Notification received1 linked violation
June 11, 2009State Public Notification requested1 linked violation
June 11, 2009State Violation/Reminder Notice1 linked violation
June 11, 2009State Public Notification requested1 linked violation
June 11, 2009State Violation/Reminder Notice1 linked violation
March 1, 2008State Compliance achieved3 linked violations
September 28, 2007State Public Notification received1 linked violation
September 18, 2007State Public Notification requested1 linked violation
September 18, 2007State Violation/Reminder Notice1 linked violation
September 10, 2007State Public Notification received1 linked violation
September 5, 2007State Formal Notice of Violation issued3 linked violations
August 16, 2007State Violation/Reminder Notice1 linked violation
August 16, 2007State Public Notification requested1 linked violation
July 30, 2007State Public Notification received1 linked violation
July 18, 2007State Public Notification requested1 linked violation
July 18, 2007State Violation/Reminder Notice1 linked violation
May 1, 2007State Compliance achieved3 linked violations
December 18, 2006State Bilateral Compliance Agreement signed2 linked violations
December 11, 2006State Public Notification received1 linked violation
November 15, 2006State Public Notification requested1 linked violation
November 15, 2006State Violation/Reminder Notice1 linked violation
November 9, 2006State Formal Notice of Violation issued2 linked violations
October 31, 2006State Public Notification received1 linked violation
October 16, 2006State Violation/Reminder Notice1 linked violation
October 16, 2006State Public Notification requested1 linked violation
September 11, 2006State Public Notification received1 linked violation
August 15, 2006State Public Notification requested1 linked violation
August 15, 2006State Violation/Reminder Notice1 linked violation
April 3, 2006State Compliance achieved2 linked violations
April 3, 2006State Public Notification received1 linked violation
March 9, 2006State Violation/Reminder Notice1 linked violation
March 9, 2006State Violation/Reminder Notice1 linked violation
September 1, 2005State Violation/Reminder Notice1 linked violation
August 26, 2005State Compliance achieved1 linked violation
July 1, 2005State Compliance achieved1 linked violation
February 7, 2005State Public Notification requested1 linked violation
February 7, 2005State Violation/Reminder Notice1 linked violation
December 31, 1995State Compliance achieved1 linked violation
October 7, 1990State Violation/Reminder Notice1 linked violation
October 7, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record

Contact

GLENDENNING, THOMAS

815-235-7643

FREEPORT, IL 61032