Drinking Water Compliance OS

CHANDLER, OK · Lincoln County

CHANDLER Water System

Current status

1 open health-based violation on record as of July 4, 2026, alongside 1 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 Oklahoma’s official records. Always confirm current status with Oklahoma before making decisions based on this information.

System facts

System ID (PWSID)
OK1020702
System type
Community Water System
Population served
3,142
Service connections
1,500
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

Violation history

  • Failure Submit IDSE/Subpart V Plan Rpt

    TTHM

    April 1, 2025 – June 4, 2025

    Resolved
  • LSL Inventory

    Health-based

    LEAD AND COPPER RULE REVISIONS

    October 17, 2024

    Addressed
  • LSL Reporting

    LEAD AND COPPER RULE REVISIONS

    October 17, 2024

    Addressed
  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    January 1, 2023 – January 17, 2023

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    January 1, 2023 – March 31, 2023

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    January 1, 2023 – March 31, 2023

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    October 1, 2022 – December 31, 2022

    Resolved
  • Failure Submit IDSE/Subpart V Plan Rpt

    Total Haloacetic Acids (HAA5)

    September 29, 2022 – December 13, 2022

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2022 – September 30, 2022

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2022 – June 30, 2022

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2022 – June 30, 2022

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2018 – June 30, 2018

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    October 1, 2017 – December 31, 2017

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2017 – September 30, 2017

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2017 – June 30, 2017

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    October 1, 2016 – December 31, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2016 – September 30, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2016 – June 30, 2016

    Resolved
  • Treatment Technique (SWTR and GWR)

    Health-based

    Surface Water Treatment Rule

    April 1, 2016 – April 30, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    January 1, 2016 – March 31, 2016

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    October 1, 2015 – December 31, 2015

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2015 – September 30, 2015

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    January 1, 2015 – March 31, 2015

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    October 1, 2013 – December 31, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    October 1, 2012 – December 31, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2012 – September 30, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2012 – June 30, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    January 1, 2012 – March 31, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    October 1, 2011 – December 31, 2011

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2011 – September 30, 2011

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2011 – June 30, 2011

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    January 1, 2011 – March 31, 2011

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    October 1, 2010 – December 31, 2010

    Resolved
  • Monthly Turbidity Exceed (Enhanced SWTR)

    Health-based

    Interim Enhanced Surface Water Treatment Rule

    August 1, 2010 – August 31, 2010

    Resolved
  • Monthly Turbidity Exceed (Enhanced SWTR)

    Health-based

    Interim Enhanced Surface Water Treatment Rule

    July 1, 2010 – July 31, 2010

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2010 – September 30, 2010

    Resolved
  • Monthly Turbidity Exceed (Enhanced SWTR)

    Health-based

    Interim Enhanced Surface Water Treatment Rule

    May 1, 2010 – May 31, 2010

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2010 – June 30, 2010

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    January 1, 2010 – March 31, 2010

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    October 1, 2009 – December 31, 2009

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2009 – September 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

    TTHM

    October 1, 2008 – December 31, 2008

    Resolved
  • Monthly Turbidity Exceed (Enhanced SWTR)

    Health-based

    Interim Enhanced Surface Water Treatment Rule

    August 1, 2008 – August 31, 2008

    Resolved
  • Monitoring, Routine (IDSE)

    Total Haloacetic Acids (HAA5)

    August 1, 2008 – October 31, 2008

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2008 – September 30, 2008

    Resolved
  • Monitoring, Routine (IDSE)

    TTHM

    May 1, 2008 – July 31, 2008

    Resolved
  • Monitoring, Routine (IDSE)

    Total Haloacetic Acids (HAA5)

    May 1, 2008 – July 31, 2008

    Resolved
  • Monitoring and Reporting (DBP)

    CARBON, TOTAL

    April 1, 2008 – June 30, 2008

    Resolved
  • Monitoring and Reporting (DBP)

    CARBON, TOTAL

    January 1, 2008 – March 31, 2008

    Resolved
  • Treatment Technique Precursor Removal

    Health-based

    CARBON, TOTAL

    July 1, 2007 – September 30, 2007

    Resolved
  • Treatment Technique Precursor Removal

    Health-based

    CARBON, TOTAL

    April 1, 2007 – June 30, 2007

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2007 – June 30, 2007

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    January 1, 2007 – March 31, 2007

    Resolved
  • Treatment Technique Precursor Removal

    Health-based

    CARBON, TOTAL

    January 1, 2007 – March 31, 2007

    Resolved
  • Monitoring, Regular

    Arsenic

    January 1, 2007 – December 31, 2007

    Resolved
  • Treatment Technique Precursor Removal

    Health-based

    CARBON, TOTAL

    October 1, 2006 – December 31, 2006

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    October 1, 2006 – December 31, 2006

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2006 – September 30, 2006

    Resolved
  • Treatment Technique Precursor Removal

    Health-based

    CARBON, TOTAL

    July 1, 2006 – September 30, 2006

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    January 1, 2006 – March 31, 2006

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    January 1, 2006 – March 31, 2006

    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

    Total Haloacetic Acids (HAA5)

    April 1, 2005 – June 30, 2005

    Resolved
  • Monitoring, Regular

    Glyphosate

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Diquat

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Atrazine

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    2,4-D

    January 1, 2005 – December 31, 2007

    Resolved
  • Treatment Technique Precursor Removal

    Health-based

    CARBON, TOTAL

    October 1, 2004 – December 31, 2004

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    October 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    May 1, 2000 – May 31, 2000

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    April 1, 2000 – April 30, 2000

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    March 1, 2000 – March 31, 2000

    Resolved
  • Treatment Technique (SWTR and GWR)

    Health-based

    Surface Water Treatment Rule

    April 1, 1998 – April 30, 1998

    Archived
  • Treatment Technique (SWTR and GWR)

    Health-based

    Surface Water Treatment Rule

    July 1, 1996 – July 31, 1996

    Resolved
  • Treatment Technique (SWTR and GWR)

    Health-based

    Surface Water Treatment Rule

    February 1, 1995 – February 28, 1995

    Resolved
  • Treatment Technique (SWTR and GWR)

    Health-based

    Surface Water Treatment Rule

    December 1, 1994 – December 31, 1994

    Resolved
  • Treatment Technique (SWTR and GWR)

    Health-based

    Surface Water Treatment Rule

    June 1, 1994 – June 30, 1994

    Resolved
  • Treatment Technique (SWTR and GWR)

    Health-based

    Surface Water Treatment Rule

    April 1, 1994 – April 30, 1994

    Resolved
  • Treatment Technique (SWTR and GWR)

    Health-based

    Surface Water Treatment Rule

    December 1, 1993 – December 31, 1993

    Archived

Resolved addressed and confirmed by the stateAddressed corrective action reported, pending final confirmationArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Contact

CHANDLER

405-258-3200

CHANDLER, OK 74834