Is DUNCAN PUBLIC UTILITIES AUTHORITY required to publish a Consumer Confidence Report?

Yes. DUNCAN PUBLIC UTILITIES AUTHORITY is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is DUNCAN PUBLIC UTILITIES AUTHORITY’s next Consumer Confidence Report due?

DUNCAN PUBLIC UTILITIES AUTHORITY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

DUNCAN, OK · Stephens County

DUNCAN PUBLIC UTILITIES AUTHORITY Water System

Consumer Confidence Report status

DUNCAN PUBLIC UTILITIES AUTHORITY must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for DUNCAN PUBLIC UTILITIES AUTHORITY.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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): OK1010809
System type: Community Water System
Population served: 23,000
Service connections: 10,938
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

DUNCAN PUBLIC UTILITIES AUTHORITY is among the 25 largest community water systems in Oklahoma, serving 23,000 people from surface water.

As of August 1, 2026, its federal record holds 83 entries between 1991 and 2025, all of which EPA lists as closed.

Of the 83, 11 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Stage 2 Disinfectants and Disinfection Byproducts Rule, the Stage 1 Disinfectants and Disinfection Byproducts Rule, and the Total Coliform Rules.

Violation history

Monitoring, Lab Certification/Method Error (RTCR)
—
Revised Total Coliform Rule
December 1, 2025 – December 31, 2025
Archived
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
November 1, 2024 – November 30, 2024
Resolved
Monitoring and Reporting (DBP)
—
Chloramine
November 1, 2024 – November 30, 2024
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2024 – December 31, 2024
Archived
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
August 1, 2024 – August 31, 2024
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2024 – September 30, 2024
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2024 – March 31, 2024
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2023 – March 31, 2023
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2020 – March 31, 2020
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2019 – December 31, 2019
Archived
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
July 1, 2019 – September 30, 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
July 1, 2019 – September 30, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2019 – June 30, 2019
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2019 – June 30, 2019
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2019 – June 30, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2019 – March 31, 2019
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2019 – March 31, 2019
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2019 – March 31, 2019
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2018 – December 31, 2018
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2018 – September 30, 2018
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2018 – June 30, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2018 – March 31, 2018
Resolved
Monitoring and Reporting (DBP)
—
Chloramine
October 1, 2017 – December 31, 2017
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
Total Haloacetic Acids (HAA5)
July 1, 2017 – September 30, 2017
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
February 1, 2017 – April 30, 2017
Resolved
Monitoring and Reporting (DBP)
—
TTHM
February 1, 2017 – April 30, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2017 – March 31, 2017
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2017 – March 31, 2017
Archived
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
December 1, 2016 – December 31, 2016
Resolved
Monitoring and Reporting (DBP)
—
TTHM
November 1, 2016 – January 31, 2017
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
November 1, 2016 – January 31, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2016 – December 31, 2016
Archived
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2016 – December 31, 2016
Archived
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2016 – September 30, 2016
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2016 – September 30, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2016 – June 30, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2016 – June 30, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2016 – March 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2015 – December 31, 2015
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2015 – June 30, 2015
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2015 – March 31, 2015
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2014 – December 31, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2014 – September 30, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2014 – June 30, 2014
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2014 – March 31, 2014
Archived
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
November 1, 2013 – January 31, 2014
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
August 1, 2013 – October 31, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2012 – June 30, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2008 – June 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2008 – March 31, 2008
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2008 – March 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2008 – March 31, 2008
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
December 1, 2007 – December 31, 2007
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2007 – December 31, 2007
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2007 – September 30, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
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
Total Haloacetic Acids (HAA5)
April 1, 2007 – June 30, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2007 – March 31, 2007
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2006 – March 31, 2006
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2005 – September 30, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2005 – March 31, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2004 – December 31, 2004
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2004 – September 30, 2004
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2004 – September 30, 2004
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2004 – June 30, 2004
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2004 – June 30, 2004
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
October 1, 2003 – December 31, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2003 – December 31, 2003
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2003 – September 30, 2003
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2003 – June 30, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2003 – June 30, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2002 – December 31, 2002
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2002 – December 31, 2002
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2002 – September 30, 2002
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 1991 – April 30, 1991
Resolved

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
December 1, 2025 – December 31, 2025	Monitoring, Lab Certification/Method Error (RTCR)	Revised Total Coliform Rule	—	Archived
November 1, 2024 – November 30, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
November 1, 2024 – November 30, 2024	Monitoring and Reporting (DBP)	Chloramine	—	Resolved
October 1, 2024 – December 31, 2024	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
August 1, 2024 – August 31, 2024	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
July 1, 2024 – September 30, 2024	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
January 1, 2024 – March 31, 2024	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
January 1, 2023 – March 31, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
January 1, 2020 – March 31, 2020	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
October 1, 2019 – December 31, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
October 1, 2019 – December 31, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2019 – September 30, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2019 – September 30, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2019 – September 30, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2019 – September 30, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2019 – June 30, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
April 1, 2019 – June 30, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
April 1, 2019 – June 30, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2019 – March 31, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
January 1, 2019 – March 31, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
January 1, 2019 – March 31, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
October 1, 2018 – December 31, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
July 1, 2018 – September 30, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
April 1, 2018 – June 30, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2018 – March 31, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2017 – December 31, 2017	Monitoring and Reporting (DBP)	Chloramine	—	Resolved
October 1, 2017 – December 31, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2017 – September 30, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2017 – September 30, 2017	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
February 1, 2017 – April 30, 2017	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
February 1, 2017 – April 30, 2017	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2017 – March 31, 2017	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Archived
January 1, 2017 – March 31, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
December 1, 2016 – December 31, 2016	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
November 1, 2016 – January 31, 2017	Monitoring and Reporting (DBP)	TTHM	—	Resolved
November 1, 2016 – January 31, 2017	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2016 – December 31, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
October 1, 2016 – December 31, 2016	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Archived
July 1, 2016 – September 30, 2016	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Archived
July 1, 2016 – September 30, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2016 – June 30, 2016	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 2016 – June 30, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2016 – March 31, 2016	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2015 – December 31, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
April 1, 2015 – June 30, 2015	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
January 1, 2015 – March 31, 2015	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
October 1, 2014 – December 31, 2014	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2014 – September 30, 2014	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2014 – June 30, 2014	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
January 1, 2014 – March 31, 2014	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
November 1, 2013 – January 31, 2014	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
August 1, 2013 – October 31, 2013	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2012 – June 30, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2008 – June 30, 2008	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2008 – March 31, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2008 – March 31, 2008	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2008 – March 31, 2008	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
December 1, 2007 – December 31, 2007	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
October 1, 2007 – December 31, 2007	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2007 – September 30, 2007	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2007 – September 30, 2007	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 2007 – June 30, 2007	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
April 1, 2007 – June 30, 2007	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2007 – June 30, 2007	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2007 – March 31, 2007	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2006 – March 31, 2006	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2005 – September 30, 2005	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2005 – March 31, 2005	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2004 – December 31, 2004	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2004 – September 30, 2004	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2004 – September 30, 2004	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
April 1, 2004 – June 30, 2004	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2004 – June 30, 2004	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2003 – December 31, 2003	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	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	TTHM	Health-based	Resolved
July 1, 2003 – September 30, 2003	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
April 1, 2003 – June 30, 2003	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
April 1, 2003 – June 30, 2003	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2002 – December 31, 2002	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2002 – December 31, 2002	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2002 – September 30, 2002	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 1991 – April 30, 1991	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

February 24, 2026State Compliance achieved1 linked violation
February 19, 2026State Public Notification requested1 linked violation
February 19, 2026State Violation/Reminder Notice1 linked violation
January 27, 2026State Violation/Reminder Notice1 linked violation
January 27, 2026State Public Notification requested1 linked violation
June 17, 2025State Public Notification received2 linked violations
June 17, 2025State Public Notification received2 linked violations
May 28, 2025State Public Notification received2 linked violations
May 2, 2025State Violation/Reminder Notice2 linked violations
May 2, 2025State Public Notification requested2 linked violations
April 15, 2025State Administrative/Compliance Order with penalty issued4 linked violations
February 13, 2025State Compliance achieved1 linked violation
February 13, 2025State Compliance achieved1 linked violation
January 29, 2025State Public Notification requested2 linked violations
January 29, 2025State Violation/Reminder Notice2 linked violations
December 23, 2024State Compliance achieved1 linked violation
December 23, 2024State Compliance achieved1 linked violation
October 21, 2024State Public Notification requested2 linked violations
October 21, 2024State Violation/Reminder Notice2 linked violations
July 25, 2024State Public Notification requested1 linked violation
July 25, 2024State Administrative/Compliance Order without penalty issued1 linked violation
June 7, 2024State Public Notification received1 linked violation
May 3, 2024State Administrative/Compliance Order without penalty issued1 linked violation
May 3, 2024State Public Notification requested1 linked violation
May 4, 2023State Public Notification received1 linked violation
March 22, 2023State Administrative/Compliance Order without penalty issued1 linked violation
March 22, 2023State Public Notification requested1 linked violation
February 8, 2021State Compliance achieved21 linked violations
October 6, 2020State Public Notification received1 linked violation
August 27, 2020State Violation/Reminder Notice1 linked violation
August 27, 2020State Public Notification requested1 linked violation
July 6, 2020State Public Notification received4 linked violations
May 15, 2020State Violation/Reminder Notice4 linked violations
May 15, 2020State Public Notification requested4 linked violations
May 6, 2020State Public Notification received4 linked violations
February 3, 2020State Violation/Reminder Notice5 linked violations
January 6, 2020State Public Notification received5 linked violations
November 5, 2019State Violation/Reminder Notice5 linked violations
October 28, 2019State Public Notification received1 linked violation
September 16, 2019State Public Notification received5 linked violations
July 23, 2019State Violation/Reminder Notice5 linked violations
June 27, 2019State Public Notification received5 linked violations
May 1, 2019State Public Notification requested7 linked violations
January 31, 2019State Violation/Reminder Notice2 linked violations
January 22, 2019State Public Notification received2 linked violations
November 21, 2018State Violation/Reminder Notice2 linked violations
July 30, 2018State Public Notification requested2 linked violations
May 8, 2018State Compliance achieved2 linked violations
April 30, 2018State Violation/Reminder Notice3 linked violations
January 30, 2018State Public Notification requested3 linked violations
January 30, 2018State Violation/Reminder Notice1 linked violation
January 12, 2018State Violation/Reminder Notice2 linked violations
January 12, 2018State Public Notification requested1 linked violation
October 31, 2017State Violation/Reminder Notice2 linked violations
October 11, 2017State Public Notification received3 linked violations
October 11, 2017State Public Notification received2 linked violations
September 15, 2017State Compliance achieved3 linked violations
September 15, 2017State Compliance achieved2 linked violations
August 18, 2017State Public Notification requested2 linked violations
July 17, 2017State Public Notification requested4 linked violations
July 17, 2017State Violation/Reminder Notice2 linked violations
June 9, 2017State Public Notification received9 linked violations
March 15, 2017State Public Notification received2 linked violations
February 8, 2017State Public Notification requested2 linked violations
February 8, 2017State Violation/Reminder Notice2 linked violations
February 6, 2017State Administrative/Compliance Order with penalty issued1 linked violation
February 6, 2017State Public Notification requested1 linked violation
January 20, 2017State Public Notification received6 linked violations
November 29, 2016State Public Notification requested6 linked violations
November 29, 2016State Violation/Reminder Notice6 linked violations
August 29, 2016State Administrative/Compliance Order with penalty issued48 linked violations
August 12, 2016State Public Notification received1 linked violation
August 12, 2016State Public Notification received1 linked violation
August 12, 2016State Public Notification received2 linked violations
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 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
March 11, 2016State Administrative/Compliance Order with penalty issued1 linked violation
March 11, 2016State Public Notification requested1 linked violation
December 4, 2015State Administrative/Compliance Order with penalty issued1 linked violation
December 4, 2015State Public Notification requested1 linked violation
September 11, 2015State Public Notification requested2 linked violations
September 11, 2015State Administrative/Compliance Order with penalty issued2 linked violations
August 4, 2015State Public Notification received2 linked violations
June 11, 2015State Administrative/Compliance Order with penalty issued2 linked violations
June 11, 2015State Public Notification requested2 linked violations
May 8, 2015State Public Notification received1 linked violation
March 13, 2015State Public Notification requested1 linked violation
March 13, 2015State Administrative/Compliance Order with penalty issued1 linked violation
January 27, 2015State Public Notification received1 linked violation
January 27, 2015State Public Notification received2 linked violations
December 4, 2014State Compliance achieved4 linked violations
November 12, 2014State Public Notification requested1 linked violation
November 12, 2014State Administrative/Compliance Order with penalty issued1 linked violation
October 3, 2014State Public Notification received1 linked violation
July 31, 2014State Administrative/Compliance Order with penalty issued1 linked violation
July 31, 2014State Public Notification requested1 linked violation
May 9, 2014State Public Notification requested2 linked violations
May 9, 2014State Administrative/Compliance Order with penalty issued2 linked violations
November 1, 2013State Compliance achieved3 linked violations
August 28, 2013State Public Notification received2 linked violations
August 26, 2013State Public Notification received1 linked violation
July 19, 2012State Public Notification requested1 linked violation
July 19, 2012State Administrative/Compliance Order with penalty issued1 linked violation
May 24, 2012State Public Notification requested1 linked violation
May 24, 2012State Administrative/Compliance Order with penalty issued1 linked violation
December 14, 2011State Compliance achieved1 linked violation
December 14, 2011State Public Notification received1 linked violation
July 13, 2011State Public Notification requested1 linked violation
July 13, 2011State Administrative/Compliance Order with penalty issued1 linked violation
March 18, 2011State Compliance achieved1 linked violation
February 9, 2010State Public Notification requested1 linked violation
February 9, 2010State Violation/Reminder Notice1 linked violation
October 13, 2009State Compliance achieved1 linked violation
September 15, 2009State Public Notification received1 linked violation
August 10, 2009State Compliance achieved83 linked violations
August 6, 2009State Public Notification received1 linked violation
May 26, 2009State Administrative/Compliance Order with penalty issued1 linked violation
May 26, 2009State Public Notification requested1 linked violation
May 7, 2009State Public Notification requested1 linked violation
May 7, 2009State Violation/Reminder Notice1 linked violation
December 15, 2008State Public Notification received6 linked violations
December 15, 2008State Public Notification received1 linked violation
December 3, 2008State Public Notification received5 linked violations
November 19, 2008State Compliance achieved1 linked violation
November 3, 2008State Public Notification requested1 linked violation
November 3, 2008State Violation/Reminder Notice1 linked violation
September 29, 2008State Public Notification requested5 linked violations
September 29, 2008State Violation/Reminder Notice5 linked violations
July 23, 2008State Public Notification received1 linked violation
June 20, 2008State Public Notification requested1 linked violation
June 20, 2008State Administrative/Compliance Order with penalty issued1 linked violation
March 18, 2008State Public Notification requested6 linked violations
March 18, 2008State Administrative/Compliance Order with penalty issued6 linked violations
December 11, 2007State Public Notification received3 linked violations
October 15, 2007State Administrative/Compliance Order with penalty issued3 linked violations
October 15, 2007State Public Notification requested3 linked violations
July 26, 2007State Public Notification received2 linked violations
June 8, 2007State Public Notification requested2 linked violations
June 8, 2007State Administrative/Compliance Order with penalty issued2 linked violations
March 16, 2007State Public Notification received3 linked violations
March 16, 2007State Public Notification received5 linked violations
March 16, 2007State Public Notification received2 linked violations
March 16, 2007State Public Notification received2 linked violations
March 16, 2007State Public Notification received3 linked violations
March 16, 2007State Public Notification received2 linked violations
February 20, 2007State Public Notification requested2 linked violations
February 20, 2007State Administrative/Compliance Order with penalty issued2 linked violations
November 7, 2006State Public Notification requested3 linked violations
October 17, 2006State Administrative/Compliance Order with penalty issued8 linked violations
October 17, 2006State Public Notification requested10 linked violations
April 19, 2006State Public Notification requested7 linked violations
January 6, 2006State Public Notification received10 linked violations
March 3, 2005State Public Notification requested3 linked violations
March 3, 2005State Public Notification requested5 linked violations
March 3, 2005State Administrative/Compliance Order with penalty issued4 linked violations
November 29, 2004State Public Notification received110 linked violations
November 16, 2004State Public Notification requested3 linked violations
September 7, 2004State Public Notification requested9 linked violations
September 7, 2004State Public Notification requested7 linked violations
May 24, 2004State Administrative/Compliance Order with penalty issued7 linked violations
November 12, 2003State Administrative/Compliance Order with penalty issued5 linked violations
September 24, 2003State Administrative/Compliance Order without penalty issued61 linked violations
August 12, 2003State Administrative/Compliance Order with penalty issued3 linked violations
November 1, 2002State Administrative/Compliance Order with penalty issued2 linked violations
October 25, 2002State Administrative/Compliance Order with penalty issued2 linked violations
September 27, 2002State Administrative/Compliance Order with penalty issued56 linked violations
March 10, 1998State Compliance achieved3 linked violations
February 14, 1996State Consent Decree/Judgement2 linked violations
May 8, 1990State Boil Water Ordergeneral compliance action — not tied to a specific violation on record
March 26, 1990State Administrative/Compliance Order without penalty issuedgeneral compliance action — not tied to a specific violation on record

Common questions

Is DUNCAN PUBLIC UTILITIES AUTHORITY required to publish a Consumer Confidence Report?: Yes. DUNCAN PUBLIC UTILITIES AUTHORITY is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is DUNCAN PUBLIC UTILITIES AUTHORITY’s next Consumer Confidence Report due?: DUNCAN PUBLIC UTILITIES AUTHORITY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does DUNCAN PUBLIC UTILITIES AUTHORITY have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for DUNCAN PUBLIC UTILITIES AUTHORITY.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

DUNCAN PUBLIC UTILITIES AUTHORITY

580-251-7796

DUNCAN, OK 73534