Ft Defiance, NN

Lupton NTUA Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of March 31, 2018. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in NN.

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): NN0400282
System type: Community Water System
Population served: 783
Service connections: 204
Ownership: Native American tribal
Water source: groundwater (wells)

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
August 1, 2015 – September 9, 2015
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2015 – August 1, 2015
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2015 – July 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2015 – July 21, 2015
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2015 – July 21, 2015
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2014 – August 13, 2014
Resolved
Failure Submit IDSE/Subpart V Plan Rpt
—
Stage 2 Disinfectants and Disinfection Byproducts Rule
October 1, 2013 – March 31, 2018
Archived
Monitoring, Regular
—
Nitrate
January 1, 2013 – October 2, 2013
Resolved
Monitoring, Regular
—
Nitrite
January 1, 2013 – October 2, 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
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2011 – September 30, 2011
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Benzene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Toluene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Styrene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2011 – December 31, 2013
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2009 – September 30, 2009
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 2008 – April 30, 2008
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2008 – December 31, 2010
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2006 – October 31, 2006
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2006 – June 30, 2006
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 2006 – May 31, 2006
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
Combined Uranium
January 1, 2005 – December 31, 2010
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2005 – December 31, 2010
Resolved

Resolved 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
August 1, 2015 – September 9, 2015	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
August 1, 2015 – August 1, 2015	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2015 – July 31, 2015	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2015 – July 21, 2015	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2015 – July 21, 2015	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
August 1, 2014 – August 13, 2014	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2013 – March 31, 2018	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	—	Archived
January 1, 2013 – October 2, 2013	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2013 – October 2, 2013	Monitoring, Regular	Nitrite	—	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
September 1, 2011 – September 30, 2011	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Benzene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Toluene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Styrene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
September 1, 2009 – September 30, 2009	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 2008 – April 30, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Thallium, Total	—	Resolved
October 1, 2006 – October 31, 2006	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
June 1, 2006 – June 30, 2006	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
May 1, 2006 – May 31, 2006	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	Combined Uranium	—	Resolved
January 1, 2005 – December 31, 2010	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

August 25, 2017State Public Notification issued1 linked violation
August 25, 2017State Formal Notice of Violation issued1 linked violation
March 8, 2016State Formal Notice of Violation issued1 linked violation
March 8, 2016State Formal Notice of Violation issued1 linked violation
March 8, 2016State Public Notification issued1 linked violation
March 8, 2016State Public Notification issued1 linked violation
March 8, 2016State Formal Notice of Violation issued1 linked violation
March 8, 2016State Public Notification issued1 linked violation
December 2, 2015State Formal Notice of Violation issued1 linked violation
December 2, 2015State Public Notification issued1 linked violation
December 2, 2015State Public Notification issued1 linked violation
December 2, 2015State Formal Notice of Violation issued1 linked violation
September 9, 2015State Compliance achieved1 linked violation
August 1, 2015State Compliance achieved1 linked violation
August 1, 2015State Compliance achieved1 linked violation
July 21, 2015State Compliance achieved1 linked violation
July 21, 2015State Compliance achieved1 linked violation
November 17, 2014State Public Notification requested1 linked violation
November 17, 2014State Formal Notice of Violation issued1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 28, 2014State no longer subject to Rule1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 14, 2014State Compliance achieved1 linked violation
August 13, 2014State Compliance achieved1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Public Notification issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
March 18, 2014State Formal Notice of Violation issued1 linked violation
October 2, 2013State Compliance achieved1 linked violation
October 2, 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 6, 2012State Compliance achieved1 linked violation
June 6, 2012State Compliance achieved1 linked violation
November 22, 2011State Formal Notice of Violation issued1 linked violation
November 22, 2011State Public Notification requested1 linked violation
October 31, 2011State Compliance achieved1 linked violation
October 19, 2011State Formal Notice of Violation issued1 linked violation
October 19, 2011State Formal Notice of Violation issued1 linked violation
October 19, 2011State Formal Notice of Violation issued1 linked violation
October 19, 2011State Formal Notice of Violation issued1 linked violation
October 19, 2011State Formal Notice of Violation issued1 linked violation
October 19, 2011State Formal Notice of Violation issued1 linked violation
October 19, 2011State Public Notification issued1 linked violation
October 19, 2011State Public Notification issued1 linked violation
October 19, 2011State Public Notification issued1 linked violation
October 19, 2011State Public Notification issued1 linked violation
October 19, 2011State Public Notification issued1 linked violation
October 19, 2011State Public Notification issued1 linked violation
October 19, 2011State Compliance achieved1 linked violation
October 19, 2011State Compliance achieved1 linked violation
October 19, 2011State Compliance achieved1 linked violation
June 7, 2011State Compliance achieved1 linked violation
June 7, 2011State Compliance achieved1 linked violation
June 7, 2011State Compliance achieved1 linked violation
June 7, 2011State Compliance achieved1 linked violation
June 18, 2010State Compliance achieved1 linked violation
May 12, 2010State Compliance achieved1 linked violation
May 12, 2010State Compliance achieved1 linked violation
December 10, 2009State Formal Notice of Violation issued1 linked violation
October 13, 2009State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
October 13, 2009State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
October 13, 2009State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
September 16, 2009State Compliance achievedgeneral compliance action — not tied to a specific violation on record
September 16, 2009State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
September 16, 2009State Othergeneral compliance action — not tied to a specific violation on record
September 11, 2009State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
September 11, 2009State Compliance achievedgeneral compliance action — not tied to a specific violation on record
June 12, 2009State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
June 12, 2009State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
June 4, 2009State Violation/Reminder Notice1 linked violation
May 9, 2008State Public Notification received1 linked violation
May 9, 2008State Compliance achieved1 linked violation
April 23, 2008State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 13, 2007State Compliance achieved1 linked violation
August 16, 2006State Formal Notice of Violation issued2 linked violations

Last known contact on file (system is inactive)

Navajo Tribal Utility Authority

9287296277

Ft Defiance, AZ 86504