Ft Defiance, NN

Buffalo Springs NTUA Water System

Current status

1 item on record is 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): NN3500264
System type: Community Water System
Population served: 397
Service connections: 116
Ownership: Native American tribal
Water source: groundwater (wells)

Violation history

Sample Siting Plan Errors (RTCR)
—
Revised Total Coliform Rule
April 1, 2016
Unaddressed
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2013 – October 31, 2013
Resolved
Failure Submit IDSE/Subpart V Plan Rpt
—
Stage 2 Disinfectants and Disinfection Byproducts Rule
October 1, 2013 – February 18, 2025
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, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
Nitrite
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 2007 – November 30, 2007
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2005 – July 22, 2005
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
—
o-Dichlorobenzene
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2005 – December 31, 2010
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
—
Gross Alpha, Excl. Radon and U
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 2003 – August 31, 2003
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 2002 – August 31, 2002
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 2002 – August 31, 2002
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2002 – July 31, 2002
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2002 – July 31, 2002
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 2002 – June 30, 2002
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
May 1, 2002 – May 31, 2002
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
April 1, 2002 – April 30, 2002
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
December 1, 2001 – December 31, 2001
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
December 1, 2001 – December 31, 2001
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 2001 – November 30, 2001
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
October 1, 2001 – October 31, 2001
Resolved

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 – October 31, 2013	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2013 – February 18, 2025	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, 2011	Monitoring, Regular	Nitrite	—	Resolved
January 1, 2011 – December 31, 2011	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	Nitrite	—	Resolved
November 1, 2007 – November 30, 2007	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 2005 – July 22, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	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	o-Dichlorobenzene	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	p-Dichlorobenzene	—	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, 2004 – December 31, 2004	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
August 1, 2003 – August 31, 2003	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
August 1, 2002 – August 31, 2002	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
August 1, 2002 – August 31, 2002	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
July 1, 2002 – July 31, 2002	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2002 – July 31, 2002	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
June 1, 2002 – June 30, 2002	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
May 1, 2002 – May 31, 2002	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
April 1, 2002 – April 30, 2002	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
December 1, 2001 – December 31, 2001	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
December 1, 2001 – December 31, 2001	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
November 1, 2001 – November 30, 2001	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
October 1, 2001 – October 31, 2001	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved

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

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
February 18, 2025State Compliance achieved1 linked violation
August 28, 2024State Formal Notice of Violation issued1 linked violation
August 28, 2017State Public Notification issued1 linked violation
August 28, 2017State Formal Notice of Violation issued1 linked violation
February 18, 2014State Public Notification issued1 linked violation
February 18, 2014State Formal Notice of Violation issued1 linked violation
November 26, 2013State Compliance achieved1 linked violation
January 11, 2013State Formal Notice of Violation issued1 linked violation
January 11, 2013State Compliance achieved1 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
June 11, 2012State Compliance achieved1 linked violation
June 11, 2012State Compliance achieved1 linked violation
February 29, 2012State Public Notification issued1 linked violation
February 29, 2012State Public Notification issued1 linked violation
February 29, 2012State Formal Notice of Violation issued1 linked violation
February 29, 2012State Formal Notice of Violation issued1 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
February 21, 2012State Compliance achieved1 linked violation
October 21, 2011State Compliance achieved1 linked violation
May 13, 2009State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
October 23, 2008State Formal Notice of Violation issued1 linked violation
May 12, 2008State Formal Notice of Violation issued1 linked violation
March 27, 2008State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 14, 2008State Compliance achieved1 linked violation
January 1, 2008State Compliance achieved1 linked violation
January 1, 2008State Compliance achieved1 linked violation
March 20, 2007State Formal Notice of Violation issued2 linked violations
March 19, 2007State Compliance achieved6 linked violations
July 22, 2005State Compliance achieved1 linked violation
April 7, 2005State Compliance achieved1 linked violation
August 3, 2004State Compliance achieved1 linked violation

Contact

Navajo Tribal Utility Authority

9287296277

Ft Defiance, AZ 86504