Is Tuba City NTUA required to publish a Consumer Confidence Report?

Yes. Tuba City 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 Tuba City NTUA’s next Consumer Confidence Report due?

Tuba City 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.

Fort Defiance, NN

Tuba City NTUA Water System

Consumer Confidence Report status

Tuba City 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 no open violations for Tuba City NTUA.

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): NN0400206
System type: Community Water System
Population served: 6,276
Service connections: 1,835
Ownership: Native American tribal
Water source: groundwater (wells)

Tuba City NTUA is the fifth largest community water system in Navajo Nation, serving 6,276 people from groundwater.

As of August 1, 2026, its federal record holds 33 entries between 1992 and 2020, all of which EPA lists as closed. Nothing has been added since 2020.

Of the 33, 31 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 synthetic organic chemicals, the Total Coliform Rules, and the Stage 2 Disinfectants and Disinfection Byproducts Rule.

Violation history

Monitoring, Routine (IDSE)
—
TTHM
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
January 1, 2020 – December 31, 2020
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2015 – March 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2015 – March 31, 2015
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2014 – May 20, 2016
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2013 – May 20, 2016
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
December 1, 2011 – December 31, 2011
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
October 1, 2011 – October 31, 2011
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
September 1, 2011 – September 30, 2011
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 2011 – July 31, 2011
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2011 – December 31, 2011
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2011 – December 31, 2011
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
November 1, 2010 – June 20, 2011
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Diquat
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Simazine
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Picloram
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
LASSO
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
February 1, 2005 – February 28, 2005
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2002 – May 31, 2002
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
December 1, 2001 – December 31, 2001
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
February 1, 2001 – February 28, 2001
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 1992 – April 30, 1992
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2020 – December 31, 2020	Monitoring, Routine (IDSE)	TTHM	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2015 – March 31, 2015	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2015 – March 31, 2015	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2014 – May 20, 2016	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2013 – May 20, 2016	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
December 1, 2011 – December 31, 2011	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
October 1, 2011 – October 31, 2011	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
September 1, 2011 – September 30, 2011	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 2011 – July 31, 2011	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 2011 – December 31, 2011	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2011 – December 31, 2011	Monitoring and Reporting (DBP)	TTHM	—	Resolved
November 1, 2010 – June 20, 2011	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Diquat	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Simazine	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Picloram	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	LASSO	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
February 1, 2005 – February 28, 2005	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
May 1, 2002 – May 31, 2002	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
December 1, 2001 – December 31, 2001	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
February 1, 2001 – February 28, 2001	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
April 1, 1992 – April 30, 1992	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

May 2, 2022State Compliance achievedgeneral compliance action — not tied to a specific violation on record
March 29, 2022State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
March 29, 2022State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
July 14, 2021State Compliance achieved1 linked violation
July 14, 2021State Compliance achieved1 linked violation
March 31, 2021State Formal Notice of Violation issued1 linked violation
March 31, 2021State Formal Notice of Violation issued1 linked violation
March 31, 2021State Public Notification issued1 linked violation
March 31, 2021State Public Notification issued1 linked violation
May 20, 2016State Compliance achieved1 linked violation
May 20, 2016State Compliance achieved1 linked violation
May 20, 2016State Compliance achieved1 linked violation
May 20, 2016State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
May 8, 2013State Compliance achieved1 linked violation
May 8, 2013State Compliance achieved1 linked violation
May 8, 2013State Compliance achieved1 linked violation
May 8, 2013State Compliance achieved1 linked violation
May 15, 2012State Compliance achieved1 linked violation
May 15, 2012State Compliance achieved1 linked violation
May 15, 2012State Compliance achieved1 linked violation
March 21, 2012State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
January 9, 2012State Compliance achieved1 linked violation
June 20, 2011State Compliance achieved1 linked violation
June 7, 2011State Compliance achieved1 linked violation
June 7, 2011State Compliance achievedgeneral compliance action — not tied to a specific violation on record
June 7, 2011State Compliance achieved1 linked violation
March 9, 2011State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 13, 2007State Compliance achieved9 linked violations
July 1, 2004State Compliance achieved1 linked violation

Common questions

Is Tuba City NTUA required to publish a Consumer Confidence Report?: Yes. Tuba City 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 Tuba City NTUA’s next Consumer Confidence Report due?: Tuba City NTUA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Tuba City NTUA have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for Tuba City NTUA.
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

9287296239

Fort Defiance, AZ 86504