CHICKASHA, OK · Grady County

CHICKASHA MUNICIPAL AUTHORITY 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): OK1010821
System type: Community Water System
Population served: 16,036
Service connections: 7,028
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

LSL Inventory
Health-based
LEAD AND COPPER RULE REVISIONS
October 17, 2024
Addressed
LSL Reporting
—
LEAD AND COPPER RULE REVISIONS
October 17, 2024
Addressed
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
March 1, 2024 – March 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2024 – March 31, 2024
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 2, 2023 – February 16, 2024
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
September 1, 2023 – September 30, 2023
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
September 1, 2023 – September 30, 2023
Archived
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
August 1, 2023 – August 31, 2023
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
August 1, 2023 – August 31, 2023
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
September 1, 2021 – September 30, 2021
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
July 1, 2021 – July 31, 2021
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
September 1, 2020 – September 30, 2020
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
September 1, 2020 – September 30, 2020
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
August 1, 2020 – August 31, 2020
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
August 1, 2019 – August 31, 2019
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
August 1, 2015 – August 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2015 – September 30, 2015
Resolved
Failure Submit IDSE/Subpart V Plan Rpt
—
TTHM
June 30, 2015 – September 15, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2015 – June 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, 2014 – December 31, 2014
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
July 1, 2014 – July 31, 2014
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2014 – August 7, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2014 – March 31, 2014
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
October 1, 2013 – December 31, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2013 – December 31, 2013
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2013 – August 7, 2015
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2012 – August 7, 2015
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
January 1, 2012 – March 31, 2012
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2009 – December 31, 2009
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2009 – December 31, 2009
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2007 – August 31, 2007
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2007 – September 30, 2007
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2004 – March 31, 2004
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2003 – December 31, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2003 – December 31, 2003
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2003 – September 30, 2003
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
July 1, 2003 – July 31, 2003
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2003 – June 30, 2003
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2003 – June 30, 2003
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2003 – March 31, 2003
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
February 1, 2002 – February 28, 2002
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 2002 – February 28, 2002
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 1992 – June 30, 1992
Resolved

Addressed corrective action reported, pending final confirmationResolved 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
October 17, 2024	LSL Inventory	LEAD AND COPPER RULE REVISIONS	Health-based	Addressed
October 17, 2024	LSL Reporting	LEAD AND COPPER RULE REVISIONS	—	Addressed
March 1, 2024 – March 31, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 2, 2023 – February 16, 2024	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
September 1, 2023 – September 30, 2023	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
September 1, 2023 – September 30, 2023	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
August 1, 2023 – August 31, 2023	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
August 1, 2023 – August 31, 2023	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
September 1, 2021 – September 30, 2021	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
July 1, 2021 – July 31, 2021	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
September 1, 2020 – September 30, 2020	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
September 1, 2020 – September 30, 2020	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
August 1, 2020 – August 31, 2020	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
August 1, 2019 – August 31, 2019	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
August 1, 2015 – August 31, 2015	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
July 1, 2015 – September 30, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
June 30, 2015 – September 15, 2015	Failure Submit IDSE/Subpart V Plan Rpt	TTHM	—	Resolved
April 1, 2015 – June 30, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2015 – March 31, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2014 – December 31, 2014	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2014 – July 31, 2014	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2014 – August 7, 2015	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2014 – March 31, 2014	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2013 – December 31, 2013	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
October 1, 2013 – December 31, 2013	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2013 – August 7, 2015	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2012 – August 7, 2015	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2012 – March 31, 2012	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
August 1, 2007 – August 31, 2007	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2007 – September 30, 2007	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2004 – March 31, 2004	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
October 1, 2003 – December 31, 2003	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
October 1, 2003 – December 31, 2003	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2003 – September 30, 2003	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2003 – July 31, 2003	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
June 1, 2003 – June 30, 2003	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 2003 – June 30, 2003	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2003 – March 31, 2003	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
February 1, 2002 – February 28, 2002	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
February 1, 2002 – February 28, 2002	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 1992 – June 30, 1992	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved

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

Enforcement actions

July 11, 2025State Violation/Reminder Notice1 linked violation
May 29, 2025State Public Notification received1 linked violation
May 29, 2025State Public Notification received1 linked violation
May 31, 2024State Compliance achieved1 linked violation
May 31, 2024State Compliance achieved1 linked violation
May 15, 2024State Violation/Reminder Notice1 linked violation
May 15, 2024State Public Notification requested1 linked violation
May 15, 2024State Public Notification requested1 linked violation
May 15, 2024State Violation/Reminder Notice1 linked violation
April 16, 2024State Administrative/Compliance Order with penalty issued6 linked violations
February 21, 2024State Public Notification received1 linked violation
February 8, 2024State Public Notification requested2 linked violations
February 8, 2024State Administrative/Compliance Order without penalty issued1 linked violation
January 18, 2024State Violation/Reminder Notice1 linked violation
December 1, 2023State Public Notification received1 linked violation
October 5, 2023State Administrative/Compliance Order without penalty issued2 linked violations
October 5, 2023State Public Notification requested2 linked violations
March 15, 2023State Compliance achieved1 linked violation
January 3, 2023State Public Notification requested2 linked violations
January 3, 2023State Administrative/Compliance Order without penalty issued1 linked violation
July 14, 2022State Compliance achieved7 linked violations
January 11, 2022State Administrative/Compliance Order without penalty issued8 linked violations
January 11, 2022State Public Notification requested8 linked violations
April 7, 2021State Compliance achieved10 linked violations
February 10, 2021State Public Notification received4 linked violations
November 20, 2020State Administrative/Compliance Order without penalty issued4 linked violations
November 20, 2020State Public Notification requested4 linked violations
June 5, 2020State Public Notification received2 linked violations
December 4, 2019State Public Notification requested3 linked violations
December 4, 2019State Administrative/Compliance Order without penalty issued4 linked violations
November 5, 2019State Public Notification received5 linked violations
August 27, 2019State Public Notification requested5 linked violations
August 27, 2019State Administrative/Compliance Order without penalty issued4 linked violations
August 3, 2017State Compliance achieved1 linked violation
August 3, 2017State Compliance achieved5 linked violations
August 3, 2017State Compliance achieved2 linked violations
February 17, 2017State Public Notification received3 linked violations
February 17, 2017State Public Notification received1 linked violation
February 1, 2017State Public Notification requested1 linked violation
February 1, 2017State Violation/Reminder Notice1 linked violation
November 18, 2016State Violation/Reminder Notice3 linked violations
November 18, 2016State Public Notification requested3 linked violations
July 25, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 25, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 25, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 25, 2016State Compliance achieved1 linked violation
July 25, 2016State Compliance achieved1 linked violation
July 25, 2016State Compliance achieved1 linked violation
July 25, 2016State Compliance achieved1 linked violation
July 25, 2016State Compliance achieved1 linked violation
July 25, 2016State Compliance achieved1 linked violation
July 25, 2016State Compliance achieved1 linked violation
April 22, 2016State Public Notification received2 linked violations
April 20, 2016State Public Notification received1 linked violation
April 20, 2016State Public Notification received1 linked violation
April 20, 2016State Public Notification received1 linked violation
April 20, 2016State Public Notification received1 linked violation
April 20, 2016State Public Notification received1 linked violation
April 20, 2016State Public Notification received2 linked violations
April 20, 2016State Public Notification received1 linked violation
March 9, 2016State Administrative/Compliance Order with penalty issued2 linked violations
March 9, 2016State Public Notification requested1 linked violation
February 29, 2016State Public Notification received2 linked violations
February 29, 2016State Compliance achieved1 linked violation
December 2, 2015State Public Notification requested1 linked violation
December 2, 2015State Administrative/Compliance Order with penalty issued1 linked violation
October 26, 2015State Administrative/Compliance Order with penalty issued1 linked violation
October 26, 2015State Public Notification requested1 linked violation
September 15, 2015State Compliance achieved1 linked violation
September 9, 2015State Administrative/Compliance Order with penalty issued1 linked violation
August 24, 2015State Violation/Reminder Notice1 linked violation
August 7, 2015State Compliance achieved3 linked violations
June 9, 2015State Public Notification requested2 linked violations
March 11, 2015State Public Notification requested1 linked violation
March 11, 2015State Administrative/Compliance Order with penalty issued1 linked violation
March 9, 2015State Public Notification received1 linked violation
February 26, 2015State Public Notification received1 linked violation
February 26, 2015State Public Notification received1 linked violation
January 14, 2015State Violation/Reminder Notice1 linked violation
January 14, 2015State Violation/Reminder Notice1 linked violation
January 6, 2015State Public Notification requested2 linked violations
November 4, 2014State Administrative/Compliance Order with penalty issued2 linked violations
August 29, 2014State Violation/Reminder Notice2 linked violations
August 29, 2014State Public Notification requested2 linked violations
August 28, 2014State Violation/Reminder Notice2 linked violations
July 31, 2014State Compliance achieved2 linked violations
July 31, 2014State Compliance achieved2 linked violations
July 2, 2014State Public Notification received3 linked violations
May 5, 2014State Administrative/Compliance Order with penalty issued3 linked violations
October 1, 2013State Compliance achieved2 linked violations
March 18, 2011State Compliance achieved3 linked violations
June 18, 2008State Public Notification received2 linked violations
March 7, 2008State Compliance achieved3 linked violations
March 7, 2008State Administrative/Compliance Order with penalty issued3 linked violations
September 26, 2007State Violation/Reminder Notice2 linked violations
November 21, 2006State Compliance achieved1 linked violation
October 6, 2006State Public Notification requested10 linked violations
August 26, 2005State Compliance achieved8 linked violations
August 26, 2004State Public Notification received3 linked violations
February 23, 2004State Administrative/Compliance Order with penalty issued22 linked violations
September 11, 2003State Public Notification requested2 linked violations
September 5, 2003State Public Notification requested2 linked violations
August 12, 2003State Administrative/Compliance Order with penalty issued3 linked violations
July 26, 2002State Administrative/Compliance Order with penalty issued1 linked violation
April 19, 2002State Administrative/Compliance Order with penalty issued2 linked violations
March 6, 2002State Violation/Reminder Notice1 linked violation
March 6, 2002State Public Notification requested1 linked violation
October 31, 1994State Compliance achieved6 linked violations

Contact

CHICKASHA MUNICIPAL AUTHORITY

918-649-4394

CHICKASHA, OK 73018-2601