Is Long House Valley NTUA required to publish a Consumer Confidence Report?

Yes. Long House Valley 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 Long House Valley NTUA’s next Consumer Confidence Report due?

Long House Valley 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

Long House Valley NTUA Water System

Consumer Confidence Report status

Long House Valley 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 2 items for Long House Valley NTUA 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 Navajo Nation’s official records. Always confirm current status with Navajo Nation before making decisions based on this information.

System facts

System ID (PWSID): NN0400825
System type: Community Water System
Population served: 277
Service connections: 81
Ownership: Native American tribal
Water source: groundwater (wells)

Long House Valley NTUA is one of 125 community water systems in Navajo Nation in the 500 or fewer people size category, serving 277 people from groundwater.

As of August 1, 2026, its federal record holds 13 entries between 2013 and 2020, of which 2 remain open; none are health-based.

Of the 13, 12 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 Lead and Copper Rule, and the Total Coliform Rules.

Violation history

Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
October 1, 2020 – December 31, 2020
Resolved
Monitoring, Routine (IDSE)
—
TTHM
October 1, 2020 – December 31, 2020
Resolved
Monitoring, Routine (IDSE)
—
TTHM
July 1, 2020 – September 30, 2020
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
July 1, 2020 – September 30, 2020
Resolved
Monitoring, Routine (IDSE)
—
TTHM
April 1, 2020 – June 30, 2020
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
April 1, 2020 – June 30, 2020
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
January 1, 2020 – March 31, 2020
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2020 – May 11, 2020
Resolved
Monitoring, Routine (IDSE)
—
TTHM
January 1, 2020 – March 31, 2020
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
October 1, 2019 – December 31, 2019
Resolved
Monitoring, Routine (IDSE)
—
TTHM
October 1, 2019 – December 31, 2019
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
Unaddressed

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

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2020 – December 31, 2020	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2020 – December 31, 2020	Monitoring, Routine (IDSE)	TTHM	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Routine (IDSE)	TTHM	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2020 – June 30, 2020	Monitoring, Routine (IDSE)	TTHM	—	Resolved
April 1, 2020 – June 30, 2020	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2020 – March 31, 2020	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2020 – May 11, 2020	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2020 – March 31, 2020	Monitoring, Routine (IDSE)	TTHM	—	Resolved
October 1, 2019 – December 31, 2019	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2019 – December 31, 2019	Monitoring, Routine (IDSE)	TTHM	—	Resolved
April 1, 2016	Sample Siting Plan Errors (RTCR)	Revised Total Coliform Rule	—	Unaddressed
October 1, 2013	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	—	Unaddressed

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

Enforcement actions

March 31, 2021State Formal Notice of Violation issued1 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 Formal Notice of Violation issued1 linked violation
March 31, 2021State Public Notification issued1 linked violation
March 31, 2021State Public Notification issued1 linked violation
March 31, 2021State Public Notification issued1 linked violation
March 31, 2021State Public Notification issued1 linked violation
March 31, 2021State Public Notification issued1 linked violation
March 31, 2021State Formal Notice of Violation issued1 linked violation
February 16, 2021State Compliance achieved1 linked violation
February 16, 2021State Compliance achieved1 linked violation
February 16, 2021State Compliance achieved1 linked violation
February 16, 2021State Compliance achieved1 linked violation
February 16, 2021State Compliance achieved1 linked violation
February 16, 2021State Compliance achieved1 linked violation
February 16, 2021State Compliance achieved1 linked violation
February 16, 2021State Compliance achieved1 linked violation
February 16, 2021State Compliance achieved1 linked violation
February 16, 2021State Compliance achieved1 linked violation
August 26, 2020State Formal Notice of Violation issued1 linked violation
August 26, 2020State Formal Notice of Violation issued1 linked violation
August 26, 2020State Public Notification issued1 linked violation
August 26, 2020State Public Notification issued1 linked violation
August 20, 2020State Formal Notice of Violation issued1 linked violation
August 20, 2020State Formal Notice of Violation issued1 linked violation
August 20, 2020State Formal Notice of Violation issued1 linked violation
August 20, 2020State Formal Notice of Violation issued1 linked violation
July 15, 2020State Formal Notice of Violation issued1 linked violation
July 15, 2020State Formal Notice of Violation issued1 linked violation
July 15, 2020State Public Notification issued1 linked violation
July 15, 2020State Public Notification issued1 linked violation
May 11, 2020State Compliance achieved1 linked violation

Common questions

Is Long House Valley NTUA required to publish a Consumer Confidence Report?: Yes. Long House Valley 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 Long House Valley NTUA’s next Consumer Confidence Report due?: Long House Valley NTUA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Long House Valley NTUA have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 2 items for Long House Valley NTUA 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

Navajo Tribal Utility Authority

9287296277

Ft Defiance, AZ 86504