Ft Defiance, NN

Inscription House-Navajo Mountain NTUA Water System

Current status

2 items on record are open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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): NN0400283
System type: Community Water System
Population served: 1,368
Service connections: 400
Ownership: Native American tribal
Water source: groundwater (wells)

Violation history

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
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 2013 – May 31, 2013
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
—
Nitrite
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2005 – December 31, 2005
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
July 31, 1996 – August 30, 1996
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
July 31, 1996 – August 30, 1996
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
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
May 1, 2013 – May 31, 2013	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	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, 2010 – December 31, 2010	Monitoring, Regular	Nitrite	—	Resolved
January 1, 2005 – December 31, 2005	Monitoring, Regular	Nitrate	—	Resolved
July 31, 1996 – August 30, 1996	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
July 31, 1996 – August 30, 1996	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Archived

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

Enforcement actions

August 28, 2024State Formal Notice of Violation issued1 linked violation
December 13, 2018State Compliance achievedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2017State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
August 29, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 29, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 29, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 7, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
February 27, 2017State Formal Notice of Violation issued1 linked violation
October 3, 2013State Formal Notice of Violation issued1 linked violation
June 27, 2013State Compliance achieved1 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
October 21, 2011State Compliance achieved1 linked violation
March 6, 2006State Compliance achieved1 linked violation
December 5, 2000State Compliance achieved1 linked violation

Contact

Navajo Tribal Utility Authority

9287296277

Ft Defiance, AZ 86504