Is DAVENPORT UTILITY AUTH required to publish a Consumer Confidence Report?

Yes. DAVENPORT UTILITY AUTH 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 DAVENPORT UTILITY AUTH’s next Consumer Confidence Report due?

DAVENPORT UTILITY AUTH’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.

DAVENPORT, OK · Lincoln County

DAVENPORT UTILITY AUTH Water System

Consumer Confidence Report status

DAVENPORT UTILITY AUTH 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 2 items for DAVENPORT UTILITY AUTH that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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): OK3004104
System type: Community Water System
Population served: 881
Service connections: 526
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

DAVENPORT UTILITY AUTH is one of 511 community water systems in Oklahoma in the 501 to 3,300 people size category, serving 881 people from surface water.

As of August 1, 2026, its federal record holds 101 entries between 1991 and 2025, of which 2 remain open; none are health-based.

Of the 101, 28 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

Failure Submit IDSE/Subpart V Plan Rpt
—
TTHM
December 30, 2025 – March 3, 2026
Resolved
Failure Submit IDSE/Subpart V Plan Rpt
—
TTHM
September 29, 2025 – March 3, 2026
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2025 – September 30, 2025
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2025 – September 30, 2025
Archived
Failure Submit IDSE/Subpart V Plan Rpt
—
TTHM
June 30, 2025 – March 3, 2026
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2025 – June 30, 2025
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2025 – June 30, 2025
Archived
Failure Submit IDSE/Subpart V Plan Rpt
—
TTHM
April 1, 2025 – March 3, 2026
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2025 – March 31, 2025
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2025 – March 31, 2025
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2024 – December 31, 2024
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2024 – December 31, 2024
Archived
Failure Submit IDSE/Subpart V Plan Rpt
—
TTHM
September 29, 2023
Unaddressed
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
September 1, 2023 – November 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
TTHM
September 1, 2023 – November 30, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2023 – September 30, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2023 – June 30, 2023
Resolved
Failure Submit IDSE/Subpart V Plan Rpt
—
TTHM
April 1, 2023
Unaddressed
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 2, 2022 – June 26, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2022 – December 31, 2022
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2022 – December 31, 2022
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2022 – December 15, 2023
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
July 1, 2019 – February 7, 2020
Resolved
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
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2018 – March 31, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2017 – December 31, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2017 – December 31, 2017
Archived
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
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2017 – June 30, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2017 – March 31, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2016 – December 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2016 – December 31, 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)
April 1, 2016 – June 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
January 1, 2015 – March 31, 2015
Resolved
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
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2014 – June 30, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2014 – March 31, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2014 – March 31, 2014
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
December 1, 2013 – February 28, 2014
Resolved
Monitoring and Reporting (DBP)
—
TTHM
December 1, 2013 – February 28, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2013 – December 31, 2013
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2013 – December 31, 2013
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
September 1, 2013 – November 30, 2013
Resolved
Monitoring and Reporting (DBP)
—
TTHM
September 1, 2013 – November 30, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2013 – September 30, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2013 – June 30, 2013
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2012 – December 31, 2012
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2012 – December 31, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2012 – December 31, 2012
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
August 1, 2012 – August 22, 2012
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
August 1, 2012 – August 22, 2012
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2012 – August 22, 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
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2010 – September 30, 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
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Routine (IDSE)
—
TTHM
April 1, 2009 – June 30, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Routine (IDSE)
—
TTHM
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
January 1, 2009 – March 31, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Routine (IDSE)
—
TTHM
October 1, 2008 – December 31, 2008
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
October 1, 2008 – December 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2008 – December 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2008 – June 30, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2008 – May 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2008 – June 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 2008 – January 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2007 – December 31, 2007
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2007 – June 30, 2007
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2007 – April 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
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2007 – March 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2006 – December 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2006 – September 30, 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)
October 1, 2005 – December 31, 2005
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2004 – March 31, 2004
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 1999 – July 31, 1999
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 1991 – August 31, 1991
Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)Unaddressed no corrective action on record yet

Period	Violation	Contaminant / rule	Health-based	Status
December 30, 2025 – March 3, 2026	Failure Submit IDSE/Subpart V Plan Rpt	TTHM	—	Resolved
September 29, 2025 – March 3, 2026	Failure Submit IDSE/Subpart V Plan Rpt	TTHM	—	Resolved
July 1, 2025 – September 30, 2025	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
July 1, 2025 – September 30, 2025	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
June 30, 2025 – March 3, 2026	Failure Submit IDSE/Subpart V Plan Rpt	TTHM	—	Resolved
April 1, 2025 – June 30, 2025	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
April 1, 2025 – June 30, 2025	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
April 1, 2025 – March 3, 2026	Failure Submit IDSE/Subpart V Plan Rpt	TTHM	—	Resolved
January 1, 2025 – March 31, 2025	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
January 1, 2025 – March 31, 2025	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
October 1, 2024 – December 31, 2024	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
October 1, 2024 – December 31, 2024	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
September 29, 2023	Failure Submit IDSE/Subpart V Plan Rpt	TTHM	—	Unaddressed
September 1, 2023 – November 30, 2023	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
September 1, 2023 – November 30, 2023	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2023 – September 30, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2023 – June 30, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2023	Failure Submit IDSE/Subpart V Plan Rpt	TTHM	—	Unaddressed
October 2, 2022 – June 26, 2023	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
October 1, 2022 – December 31, 2022	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2022 – December 31, 2022	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2022 – December 15, 2023	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2019 – February 7, 2020	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
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
January 1, 2018 – March 31, 2018	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2017 – December 31, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2017 – December 31, 2017	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Archived
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
April 1, 2017 – June 30, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2017 – March 31, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2016 – December 31, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2016 – December 31, 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
April 1, 2016 – June 30, 2016	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2016 – March 31, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2015 – December 31, 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 – 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	Resolved
April 1, 2014 – June 30, 2014	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2014 – March 31, 2014	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2014 – March 31, 2014	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
December 1, 2013 – February 28, 2014	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
December 1, 2013 – February 28, 2014	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2013 – December 31, 2013	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Archived
October 1, 2013 – December 31, 2013	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
September 1, 2013 – November 30, 2013	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
September 1, 2013 – November 30, 2013	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2013 – September 30, 2013	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2013 – June 30, 2013	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2012 – December 31, 2012	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2012 – December 31, 2012	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2012 – December 31, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
August 1, 2012 – August 22, 2012	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 2012 – August 22, 2012	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 2012 – August 22, 2012	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2012 – September 30, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2012 – June 30, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2012 – March 31, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2011 – December 31, 2011	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2011 – September 30, 2011	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2011 – June 30, 2011	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2011 – March 31, 2011	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2010 – December 31, 2010	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2010 – September 30, 2010	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2010 – June 30, 2010	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2010 – March 31, 2010	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2009 – December 31, 2009	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2009 – September 30, 2009	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Routine (IDSE)	TTHM	—	Resolved
April 1, 2009 – June 30, 2009	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Routine (IDSE)	TTHM	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2009 – March 31, 2009	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2008 – December 31, 2008	Monitoring, Routine (IDSE)	TTHM	—	Resolved
October 1, 2008 – December 31, 2008	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2008 – December 31, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2008 – September 30, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
June 1, 2008 – June 30, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
May 1, 2008 – May 31, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2008 – June 30, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2008 – March 31, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2008 – January 31, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2007 – December 31, 2007	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
June 1, 2007 – June 30, 2007	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 2007 – April 30, 2007	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2007 – June 30, 2007	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2007 – March 31, 2007	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2007 – March 31, 2007	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2006 – December 31, 2006	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2006 – September 30, 2006	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2006 – March 31, 2006	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2005 – December 31, 2005	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2004 – March 31, 2004	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 1999 – July 31, 1999	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
August 1, 1991 – August 31, 1991	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)Unaddressed no corrective action on record yet

Enforcement actions

February 19, 2026State Public Notification requested3 linked violations
October 20, 2025State Administrative/Compliance Order without penalty issued2 linked violations
October 20, 2025State Public Notification requested4 linked violations
July 29, 2025State Violation/Reminder Notice2 linked violations
July 1, 2025State Public Notification requested3 linked violations
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule3 linked violations
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule2 linked violations
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 18, 2025State no longer subject to Rule1 linked violation
June 3, 2025State Violation/Reminder Notice1 linked violation
May 2, 2025State Administrative/Compliance Order without penalty issued2 linked violations
May 2, 2025State Public Notification requested2 linked violations
May 2, 2025State Public Notification requested2 linked violations
January 31, 2025State Public Notification received2 linked violations
January 8, 2025State Public Notification requested2 linked violations
January 8, 2025State Administrative/Compliance Order without penalty issued2 linked violations
April 29, 2024State Public Notification received2 linked violations
April 5, 2024State Compliance achieved2 linked violations
February 20, 2024State Compliance achieved2 linked violations
February 20, 2024State Compliance achieved2 linked violations
February 20, 2024State Compliance achieved2 linked violations
February 20, 2024State Compliance achieved2 linked violations
February 16, 2024State Violation/Reminder Notice1 linked violation
January 23, 2024State Public Notification requested2 linked violations
January 23, 2024State Violation/Reminder Notice2 linked violations
December 15, 2023State Compliance achieved1 linked violation
October 4, 2023State Public Notification requested2 linked violations
October 4, 2023State Administrative/Compliance Order without penalty issued2 linked violations
August 1, 2023State Public Notification received4 linked violations
July 20, 2023State Violation/Reminder Notice1 linked violation
June 20, 2023State Administrative/Compliance Order without penalty issued3 linked violations
June 20, 2023State Public Notification requested3 linked violations
March 6, 2023State Public Notification received3 linked violations
March 2, 2023State Public Notification requested3 linked violations
March 2, 2023State Administrative/Compliance Order without penalty issued2 linked violations
February 3, 2023State Administrative/Compliance Order without penalty issued2 linked violations
February 3, 2023State Public Notification requested34 linked violations
January 18, 2023State Violation/Reminder Notice1 linked violation
December 31, 2022State Public Notification received1 linked violation
April 20, 2021State Public Notification received2 linked violations
September 29, 2020State Violation/Reminder Notice1 linked violation
September 29, 2020State Public Notification requested1 linked violation
February 3, 2020State Public Notification received2 linked violations
February 3, 2020State Public Notification received8 linked violations
January 6, 2020State Public Notification requested3 linked violations
September 30, 2019State Violation/Reminder Notice3 linked violations
August 26, 2019State Public Notification requested2 linked violations
January 31, 2019State Public Notification requested2 linked violations
August 3, 2018State Public Notification received3 linked violations
June 29, 2018State Violation/Reminder Notice2 linked violations
April 4, 2018State Violation/Reminder Notice2 linked violations
April 4, 2018State Public Notification requested3 linked violations
February 7, 2018State Public Notification received3 linked violations
December 6, 2017State Violation/Reminder Notice3 linked violations
November 6, 2017State Public Notification received3 linked violations
October 5, 2017State Public Notification requested3 linked violations
June 30, 2017State Public Notification requested2 linked violations
April 10, 2017State Public Notification received3 linked violations
March 21, 2017State Violation/Reminder Notice2 linked violations
March 7, 2017State Public Notification requested2 linked violations
December 2, 2016State Public Notification requested7 linked violations
September 15, 2016State Administrative/Compliance Order with penalty issued39 linked violations
August 4, 2016State Compliance achieved1 linked violation
August 4, 2016State Compliance achieved2 linked violations
August 4, 2016State Compliance achieved4 linked violations
August 4, 2016State Compliance achieved3 linked violations
August 4, 2016State Compliance achieved2 linked violations
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
March 4, 2016State Public Notification received2 linked violations
January 29, 2016State Public Notification requested3 linked violations
November 20, 2015State Compliance achieved2 linked violations
November 13, 2015State Violation/Reminder Notice3 linked violations
October 22, 2015State Public Notification received3 linked violations
September 24, 2015State Public Notification received3 linked violations
August 26, 2015State Public Notification requested2 linked violations
June 12, 2015State Intentional no-action44 linked violations
April 28, 2015State Administrative/Compliance Order with penalty issued1 linked violation
March 4, 2015State Public Notification received4 linked violations
January 30, 2015State Administrative/Compliance Order with penalty issued2 linked violations
December 3, 2014State Compliance achieved5 linked violations
October 2, 2014State Administrative/Compliance Order with penalty issued2 linked violations
July 31, 2014State Administrative/Compliance Order with penalty issued3 linked violations
July 3, 2014State Public Notification received6 linked violations
June 17, 2014State Administrative/Compliance Order with penalty issued1 linked violation
June 17, 2014State Administrative/Compliance Order with penalty issued6 linked violations
June 17, 2014State Public Notification requested6 linked violations
August 5, 2013State Violation/Reminder Notice44 linked violations
February 1, 2013State Compliance achieved6 linked violations
January 24, 2013State Public Notification requested4 linked violations
January 7, 2013State Administrative/Compliance Order with penalty issued44 linked violations
September 28, 2012State Violation/Reminder Notice5 linked violations
September 28, 2012State Public Notification requested1 linked violation
August 22, 2012State Compliance achieved4 linked violations
August 16, 2012State Boil Water Order26 linked violations
August 16, 2012State Public Notification received5 linked violations
May 3, 2012State Public Notification received3 linked violations
April 23, 2012State Public Notification requested3 linked violations
February 3, 2012State Public Notification received6 linked violations
January 9, 2012State Public Notification requested3 linked violations
October 31, 2011State Public Notification received3 linked violations
July 7, 2011State Public Notification requested4 linked violations
July 7, 2011State Violation/Reminder Notice1 linked violation
May 17, 2011State Public Notification received1 linked violation
April 11, 2011State Violation/Reminder Notice4 linked violations
January 7, 2011State Public Notification requested2 linked violations
November 10, 2010State Public Notification received1 linked violation
October 6, 2010State Violation/Reminder Notice2 linked violations
July 6, 2010State Violation/Reminder Notice3 linked violations
April 21, 2010State Public Notification requested2 linked violations
January 26, 2010State Public Notification requested3 linked violations
September 28, 2009State Violation/Reminder Notice31 linked violations
July 29, 2009State Public Notification requested7 linked violations
January 15, 2009State Violation/Reminder Notice2 linked violations
October 30, 2008State Violation/Reminder Notice12 linked violations
September 29, 2008State Public Notification received1 linked violation
September 29, 2008State Public Notification received2 linked violations
September 15, 2008State Public Notification requested3 linked violations
July 1, 2008State Compliance achieved9 linked violations
June 30, 2008State Violation/Reminder Notice2 linked violations
June 5, 2008State Violation/Reminder Notice2 linked violations
June 5, 2008State Public Notification requested2 linked violations
March 10, 2008State Public Notification received3 linked violations
February 25, 2008State Violation/Reminder Notice2 linked violations
February 19, 2008State Violation/Reminder Notice2 linked violations
January 2, 2008State Public Notification requested2 linked violations
August 22, 2007State Public Notification requested3 linked violations
July 25, 2007State Public Notification requested5 linked violations
May 24, 2007State Public Notification requested2 linked violations
February 15, 2007State Public Notification requested5 linked violations
December 11, 2006State Administrative/Compliance Order with penalty issued10 linked violations
October 19, 2006State Public Notification received5 linked violations
October 19, 2006State Public Notification received2 linked violations
October 19, 2006State Public Notification received3 linked violations
October 3, 2006State Administrative/Compliance Order with penalty issued2 linked violations
May 1, 2006State Public Notification received3 linked violations
April 10, 2006State Public Notification requested3 linked violations
February 1, 2006State Public Notification received5 linked violations
December 29, 2005State Public Notification requested4 linked violations
August 12, 2005State Public Notification received3 linked violations
July 19, 2005State Public Notification requested3 linked violations
April 1, 2004State Compliance achieved4 linked violations
October 17, 2002State Public Notification received2 linked violations

Common questions

Is DAVENPORT UTILITY AUTH required to publish a Consumer Confidence Report?: Yes. DAVENPORT UTILITY AUTH 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 DAVENPORT UTILITY AUTH’s next Consumer Confidence Report due?: DAVENPORT UTILITY AUTH’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does DAVENPORT UTILITY AUTH have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 2 items for DAVENPORT UTILITY AUTH that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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

DAVENPORT UTILITY AUTH

918-377-2235

DAVENPORT, OK 74026-0279