Drinking Water Compliance OS

LEXINGTON, IL · McLean County

COOKSVILLE 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)
IL1130400
System type
Community Water System
Population served
157
Service connections
104
Ownership
local government
Water source
groundwater (wells)

Violation history

  • Public Notification Violation for NPDWR Violation

    Public Notice

    May 30, 2025 – June 1, 2025

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    May 30, 2025 – June 1, 2025

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    April 1, 2025 – June 30, 2025

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2025 – June 30, 2025

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    January 1, 2020 – March 31, 2020

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    October 1, 2019 – December 31, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2019 – September 30, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2019 – June 30, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2015 – September 30, 2015

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    May 1, 2012 – May 31, 2012

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    April 1, 2012 – June 6, 2012

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    February 1, 2012 – February 29, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    July 1, 2010 – September 30, 2010

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    April 1, 2010 – June 30, 2010

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    January 1, 2010 – March 31, 2010

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    October 23, 2009 – December 8, 2009

    Resolved
  • Public Notification Violation without NPDWR Violation

    Public Notice

    October 23, 2009 – December 8, 2009

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    October 1, 2009 – December 31, 2009

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    July 1, 2009 – September 30, 2009

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    April 1, 2009 – June 30, 2009

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2009 – June 30, 2009

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    January 1, 2009 – March 31, 2009

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    January 1, 2009 – March 31, 2009

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    October 1, 2008 – December 31, 2008

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    July 1, 2008 – September 30, 2008

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    July 1, 2008 – September 30, 2008

    Resolved
  • Monitoring, Regular

    Arsenic

    July 1, 2008 – September 30, 2008

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    July 1, 2008 – September 30, 2008

    Resolved
  • Public Notification Violation without NPDWR Violation

    Public Notice

    April 16, 2008 – June 16, 2008

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    April 16, 2008 – June 16, 2008

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    April 1, 2008 – June 30, 2008

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    January 1, 2008 – March 31, 2008

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    October 1, 2007 – December 31, 2007

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    July 13, 2007 – September 14, 2007

    Resolved
  • Public Notification Violation without NPDWR Violation

    Public Notice

    July 13, 2007 – September 14, 2007

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    July 1, 2007 – September 30, 2007

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    April 1, 2007 – June 30, 2007

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    January 1, 2007 – March 31, 2007

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    November 11, 2006 – December 8, 2006

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    October 1, 2006 – December 31, 2006

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    October 1, 2005 – December 31, 2005

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    October 1, 2005 – December 31, 2005

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    July 1, 2005 – September 30, 2005

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2005 – June 30, 2005

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    January 1, 2005 – March 31, 2005

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    July 1, 2004 – September 30, 2004

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2004 – September 30, 2004

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2004 – June 30, 2004

    Resolved
  • Monitoring, Repeat Major (TCR)

    Coliform (TCR)

    February 1, 2000 – February 29, 2000

    Archived
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    November 1, 1996 – November 30, 1996

    Archived
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    October 1, 1996 – October 31, 1996

    Archived
  • Monitoring, Repeat Minor (TCR)

    Coliform (TCR)

    October 1, 1996 – October 31, 1996

    Archived
  • Monitoring, Regular

    Carbon tetrachloride

    April 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    April 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    April 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    April 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Regular

    1,1-Dichloroethylene

    April 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Regular

    p-Dichlorobenzene

    April 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Regular

    Xylenes, Total

    April 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Regular

    o-Dichlorobenzene

    April 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Regular

    cis-1,2-Dichloroethylene

    April 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    April 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Regular

    DICHLOROMETHANE

    April 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Regular

    1,2,4-Trichlorobenzene

    April 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    April 1, 1994 – April 30, 1994

    Archived
  • Monitoring, Regular

    Styrene

    April 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Regular

    Ethylbenzene

    April 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Regular

    Toluene

    April 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Regular

    Benzene

    April 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Regular

    CHLOROBENZENE

    April 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    April 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Regular

    Trichloroethylene

    April 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Regular

    1,2-Dichloropropane

    April 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    December 1, 1991 – December 31, 1991

    Archived
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    May 1, 1991 – May 31, 1991

    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)

Enforcement actions

Contact

BEARD, MICHAEL D.

309-365-3331

LEXINGTON, IL 61753