Is Defiance NTUA required to publish a Consumer Confidence Report?

Yes. Defiance NTUA 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 Defiance NTUA’s next Consumer Confidence Report due?

Defiance NTUA’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.

Ft Defiance, NN

Defiance NTUA Water System

Consumer Confidence Report status

Defiance NTUA 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 1 item for Defiance NTUA that is 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 Navajo Nation’s official records. Always confirm current status with Navajo Nation before making decisions based on this information.

System facts

System ID (PWSID): NN3500277
System type: Community Water System
Population served: 1,659
Service connections: 485
Ownership: Native American tribal
Water source: groundwater (wells)

Defiance NTUA is among the 22 largest community water systems in Navajo Nation, serving 1,659 people from groundwater.

As of August 1, 2026, its federal record holds 43 entries between 1996 and 2021, of which 1 remains open; none are health-based.

Of the 43, 42 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 volatile organic chemicals, the Total Coliform Rules, and inorganic chemicals.

Violation history

Monitoring, Regular
—
Nitrate
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Nitrite
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Routine (IDSE)
—
TTHM
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
April 1, 2017 – April 30, 2017
Resolved
Monitoring, Regular
—
Toluene
April 1, 2017 – June 27, 2017
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
March 1, 2017 – March 31, 2017
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
February 1, 2017 – February 28, 2017
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
January 1, 2017 – January 31, 2017
Resolved
Sample Siting Plan Errors (RTCR)
—
Revised Total Coliform Rule
April 1, 2016
Unaddressed
Failure Submit IDSE/Subpart V Plan Rpt
—
Stage 2 Disinfectants and Disinfection Byproducts Rule
October 1, 2013 – February 23, 2023
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2012 – December 31, 2012
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2012 – November 30, 2012
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Benzene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Toluene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Styrene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2011 – December 31, 2013
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2010 – July 10, 2010
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2010 – July 10, 2010
Resolved
Monitoring, Regular
—
Nitrite
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 2001 – October 10, 2001
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 31, 1996 – August 30, 1996
Resolved

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2021 – December 31, 2021	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Nitrite	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Routine (IDSE)	TTHM	—	Resolved
April 1, 2017 – April 30, 2017	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
April 1, 2017 – June 27, 2017	Monitoring, Regular	Toluene	—	Resolved
March 1, 2017 – March 31, 2017	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
February 1, 2017 – February 28, 2017	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2017 – January 31, 2017	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
April 1, 2016	Sample Siting Plan Errors (RTCR)	Revised Total Coliform Rule	—	Unaddressed
October 1, 2013 – February 23, 2023	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	—	Resolved
December 1, 2012 – December 31, 2012	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 2012 – November 30, 2012	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	CYANIDE	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Benzene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Toluene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Styrene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Fluoride	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2010 – July 10, 2010	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2010 – July 10, 2010	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	Nitrite	—	Resolved
October 1, 2001 – October 10, 2001	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 31, 1996 – August 30, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet

Enforcement actions

April 30, 2025State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
April 30, 2025State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
August 28, 2024State Formal Notice of Violation issued1 linked violation
February 23, 2023State Compliance achieved1 linked violation
April 19, 2022State Compliance achieved1 linked violation
April 19, 2022State Compliance achieved1 linked violation
March 29, 2022State Public Notification issued1 linked violation
March 29, 2022State Formal Notice of Violation issued1 linked violation
March 29, 2022State Formal Notice of Violation issued1 linked violation
March 29, 2022State Public Notification issued1 linked violation
July 13, 2021State Compliance achieved1 linked violation
July 13, 2021State Compliance achieved1 linked violation
March 31, 2021State Formal Notice of Violation issued1 linked violation
March 31, 2021State Public Notification issued1 linked violation
March 31, 2021State Formal Notice of Violation issued1 linked violation
March 31, 2021State Public Notification issued1 linked violation
November 13, 2017State Compliance achieved1 linked violation
November 13, 2017State Compliance achieved1 linked violation
November 13, 2017State Compliance achieved1 linked violation
November 13, 2017State Compliance achieved1 linked violation
August 29, 2017State Public Notification issued1 linked violation
August 29, 2017State Public Notification issued1 linked violation
August 29, 2017State Formal Notice of Violation issued1 linked violation
August 29, 2017State Formal Notice of Violation issued1 linked violation
August 29, 2017State Formal Notice of Violation issued1 linked violation
August 29, 2017State Public Notification issued1 linked violation
June 27, 2017State Compliance achieved1 linked violation
June 23, 2017State Formal Notice of Violation issued1 linked violation
June 23, 2017State Formal Notice of Violation issued1 linked violation
June 23, 2017State Public Notification issued1 linked violation
June 23, 2017State Public Notification issued1 linked violation
June 23, 2017State Formal Notice of Violation issued1 linked violation
June 23, 2017State Public Notification issued1 linked violation
October 10, 2016State Compliance achieved1 linked violation
October 10, 2016State Compliance achieved1 linked violation
October 10, 2016State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
April 6, 2015State Compliance achieved1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
October 1, 2014State Public Notification received1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Formal Notice of Violation issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
March 21, 2014State Public Notification issued1 linked violation
January 11, 2013State Compliance achieved1 linked violation
January 11, 2013State Formal Notice of Violation issued1 linked violation
December 11, 2012State Compliance achieved1 linked violation
November 2, 2012State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 2, 2012State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 2, 2012State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 2, 2012State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 2, 2012State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 3, 2011State Formal Notice of Violation issued1 linked violation
November 3, 2011State Public Notification issued1 linked violation
November 3, 2011State Formal Notice of Violation issued1 linked violation
November 3, 2011State Public Notification issued1 linked violation
October 21, 2011State Compliance achieved1 linked violation
January 25, 2011State Compliance achieved1 linked violation
July 10, 2010State Compliance achieved1 linked violation
July 10, 2010State Compliance achieved1 linked violation
March 22, 2007State Formal Notice of Violation issued1 linked violation
October 10, 2001State Compliance achieved1 linked violation
December 5, 2000State Compliance achievedgeneral compliance action — not tied to a specific violation on record

Common questions

Is Defiance NTUA required to publish a Consumer Confidence Report?: Yes. Defiance NTUA 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 Defiance NTUA’s next Consumer Confidence Report due?: Defiance NTUA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Defiance NTUA have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 1 item for Defiance NTUA that is 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

Navajo Tribal Utility Authority

9287296277

Ft Defiance, AZ 86504