Ft Defiance, NN

Rough Rock NTUA Water System

Current status

No open violations on record as of July 4, 2026.

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): NN0400396
System type: Community Water System
Population served: 455
Service connections: 133
Ownership: Native American tribal
Water source: groundwater (wells)

Violation history

Sample Siting Plan Errors (RTCR)
—
Revised Total Coliform Rule
April 1, 2016 – February 10, 2025
Resolved
Failure Submit IDSE/Subpart V Plan Rpt
—
Stage 2 Disinfectants and Disinfection Byproducts Rule
October 1, 2013 – July 18, 2022
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
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2011 – June 18, 2014
Resolved
Monitoring, Regular
—
Nitrite
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 2009 – July 31, 2009
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
Benzene
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
Toluene
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
Styrene
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
Combined Uranium
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2005 – December 31, 2010
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
April 1, 2016 – February 10, 2025	Sample Siting Plan Errors (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2013 – July 18, 2022	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 – June 18, 2014	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	Nitrite	—	Resolved
July 1, 2009 – July 31, 2009	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	Benzene	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	Toluene	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	Styrene	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	Combined Uranium	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

February 10, 2025State Compliance achieved1 linked violation
August 28, 2024State Formal Notice of Violation issued1 linked violation
July 18, 2022State Compliance achieved1 linked violation
August 25, 2017State Formal Notice of Violation issued1 linked violation
August 25, 2017State Public Notification issued1 linked violation
June 18, 2014State Compliance achieved1 linked violation
May 6, 2014State Public Notification issued1 linked violation
May 6, 2014State Formal Notice of Violation 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
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
October 21, 2011State Compliance achieved1 linked violation
October 14, 2011State Compliance achieved1 linked violation
October 14, 2011State Compliance achieved1 linked violation
October 14, 2011State Compliance achieved1 linked violation
January 25, 2011State Compliance achieved1 linked violation
May 11, 2010State Formal Notice of Violation issued1 linked violation
May 11, 2010State Public Notification requested1 linked violation

Contact

Navajo Tribal Utility Authority

9287296277

Ft Defiance, AZ 86504