Ft Defiance, NN

Montezuma Creek 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): NN4903018
System type: Community Water System
Population served: 424
Service connections: 124
Ownership: Native American tribal
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Arsenic
January 1, 2022 – March 31, 2022
Resolved
Monitoring, Regular
—
Arsenic
October 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Arsenic
April 1, 2021 – June 30, 2021
Resolved
Monitoring, Regular
—
Arsenic
April 1, 2019 – February 12, 2019
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2019 – February 12, 2019
Resolved
Sample Siting Plan Errors (RTCR)
—
Revised Total Coliform Rule
April 1, 2016 – March 7, 2025
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2015 – December 1, 2014
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2015 – August 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2015 – December 1, 2014
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 1, 2015 – March 17, 2016
Resolved
Monitoring, Regular
—
Arsenic
April 1, 2015 – May 9, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2015 – December 1, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2014 – December 1, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2014 – September 30, 2014
Resolved
Monitoring, Regular
—
Arsenic
July 1, 2014 – August 5, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2014 – June 30, 2014
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
January 1, 2014 – October 1, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2014 – March 31, 2014
Resolved
Failure Submit IDSE/Subpart V Plan Rpt
—
Stage 2 Disinfectants and Disinfection Byproducts Rule
October 1, 2013 – February 23, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2013 – December 31, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2013 – September 30, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2013 – June 30, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2013 – March 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
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2012 – December 31, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2012 – September 30, 2012
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2011 – August 31, 2011
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Nitrite
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Diquat
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Endothall
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Glyphosate
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Chromium
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Barium
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
2,3,7,8-TCDD
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Mercury
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Selenium
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2008 – December 31, 2010
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2022 – March 31, 2022	Monitoring, Regular	Arsenic	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring, Regular	Arsenic	—	Resolved
April 1, 2021 – June 30, 2021	Monitoring, Regular	Arsenic	—	Resolved
April 1, 2019 – February 12, 2019	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2019 – February 12, 2019	Monitoring, Regular	Arsenic	—	Resolved
April 1, 2016 – March 7, 2025	Sample Siting Plan Errors (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2015 – December 1, 2014	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
August 1, 2015 – August 31, 2015	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2015 – December 1, 2014	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2015 – March 17, 2016	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 1, 2015 – May 9, 2013	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2015 – December 1, 2014	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2014 – December 1, 2014	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2014 – September 30, 2014	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2014 – August 5, 2014	Monitoring, Regular	Arsenic	—	Resolved
April 1, 2014 – June 30, 2014	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2014 – October 1, 2014	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2014 – March 31, 2014	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2013 – February 23, 2023	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	—	Resolved
October 1, 2013 – December 31, 2013	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2013 – September 30, 2013	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
April 1, 2013 – June 30, 2013	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2013 – March 31, 2013	Maximum Contaminant Level Violation, Average	Arsenic	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
October 1, 2012 – December 31, 2012	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2012 – September 30, 2012	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
August 1, 2011 – August 31, 2011	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Fluoride	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	Nitrite	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Diquat	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Endothall	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Glyphosate	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Fluoride	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	CYANIDE	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Chromium	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Barium	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	2,3,7,8-TCDD	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Mercury	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Selenium	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Dalapon	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

March 7, 2025State Compliance achieved1 linked violation
August 28, 2024State Formal Notice of Violation issued1 linked violation
February 23, 2023State Compliance achieved1 linked violation
September 27, 2022State Compliance achieved1 linked violation
September 27, 2022State Compliance achieved1 linked violation
July 7, 2021State Compliance achieved1 linked violation
February 12, 2019State Compliance achieved1 linked violation
February 12, 2019State Compliance achieved1 linked violation
August 28, 2017State Formal Notice of Violation issued1 linked violation
August 28, 2017State Public Notification issued1 linked violation
March 17, 2016State Compliance achieved1 linked violation
March 8, 2016State Formal Notice of Violation issued1 linked violation
March 8, 2016State Formal Notice of Violation issued1 linked violation
December 2, 2015State Formal Notice of Violation issued1 linked violation
December 2, 2015State Public Notification issued1 linked violation
September 30, 2015State Compliance achieved1 linked violation
March 4, 2015State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
March 4, 2015State Formal Notice of Violation issued1 linked violation
March 4, 2015State Public Notification requested1 linked violation
March 4, 2015State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 1, 2014State Compliance achieved1 linked violation
December 1, 2014State Compliance achieved1 linked violation
December 1, 2014State Compliance achieved1 linked violation
December 1, 2014State Compliance achieved1 linked violation
December 1, 2014State Compliance achieved1 linked violation
December 1, 2014State Compliance achieved1 linked violation
December 1, 2014State Compliance achieved1 linked violation
December 1, 2014State Compliance achieved1 linked violation
December 1, 2014State Compliance achieved1 linked violation
December 1, 2014State Compliance achieved1 linked violation
December 1, 2014State Compliance achieved1 linked violation
December 1, 2014State Compliance achieved1 linked violation
December 1, 2014State Compliance achieved1 linked violation
October 1, 2014State Compliance achieved1 linked violation
October 1, 2014State Compliance achieved1 linked violation
August 28, 2014State Public Notification received1 linked violation
August 28, 2014State Public Notification received1 linked violation
August 5, 2014State Compliance achieved1 linked violation
April 14, 2014State Public Notification issued1 linked violation
April 14, 2014State Formal Notice of Violation issued1 linked violation
January 28, 2014State Public Notification received1 linked violation
January 28, 2014State Public Notification received1 linked violation
January 28, 2014State Public Notification received1 linked violation
January 28, 2014State Public Notification received1 linked violation
January 28, 2014State Public Notification received1 linked violation
October 25, 2013State Bilateral Compliance Agreement signed1 linked violation
May 20, 2013State Administrative/Compliance Order without penalty issued1 linked violation
May 20, 2013State Administrative/Compliance Order without penalty issued1 linked violation
May 20, 2013State Administrative/Compliance Order without penalty issued1 linked violation
May 20, 2013State Administrative/Compliance Order without penalty issued1 linked violation
May 20, 2013State Administrative/Compliance Order without penalty issued1 linked violation
May 20, 2013State Administrative/Compliance Order without penalty issued1 linked violation
May 20, 2013State Administrative/Compliance Order without penalty issued1 linked violation
May 20, 2013State Administrative/Compliance Order without penalty issued1 linked violation
May 20, 2013State Administrative/Compliance Order without penalty issued1 linked violation
May 20, 2013State Administrative/Compliance Order without penalty issued1 linked violation
May 20, 2013State Administrative/Compliance Order without penalty issued1 linked violation
May 20, 2013State Administrative/Compliance Order without penalty issued1 linked violation
May 20, 2013State Administrative/Compliance Order without penalty issued1 linked violation
May 20, 2013State Administrative/Compliance Order without penalty issued1 linked violation
May 20, 2013State Administrative/Compliance Order without penalty issued1 linked violation
May 20, 2013State Administrative/Compliance Order without penalty issued1 linked violation
May 20, 2013State Administrative/Compliance Order without penalty issuedgeneral compliance action — not tied to a specific violation on record
May 20, 2013State Administrative/Compliance Order without penalty issued1 linked violation
May 9, 2013State Compliance achieved1 linked violation
March 12, 2013State 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 20, 2012State Formal Notice of Violation issued1 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
November 22, 2011State Formal Notice of Violation issued1 linked violation
November 22, 2011State Public Notification requested1 linked violation
October 25, 2011State Public Notification issued1 linked violation
October 25, 2011State Formal Notice of Violation issued1 linked violation
October 25, 2011State Formal Notice of Violation issued1 linked violation
October 25, 2011State Formal Notice of Violation issued1 linked violation
October 25, 2011State Formal Notice of Violation issued1 linked violation
October 25, 2011State Formal Notice of Violation issued1 linked violation
October 25, 2011State Formal Notice of Violation issued1 linked violation
October 25, 2011State Formal Notice of Violation issued1 linked violation
October 25, 2011State Formal Notice of Violation issued1 linked violation
October 25, 2011State Formal Notice of Violation issued1 linked violation
October 25, 2011State Formal Notice of Violation issued1 linked violation
October 25, 2011State Formal Notice of Violation issued1 linked violation
October 25, 2011State Formal Notice of Violation issued1 linked violation
October 25, 2011State Formal Notice of Violation issued1 linked violation
October 25, 2011State Public Notification issued1 linked violation
October 25, 2011State Public Notification issued1 linked violation
October 25, 2011State Public Notification issued1 linked violation
October 25, 2011State Public Notification issued1 linked violation
October 25, 2011State Public Notification issued1 linked violation
October 25, 2011State Public Notification issued1 linked violation
October 25, 2011State Public Notification issued1 linked violation
October 25, 2011State Public Notification issued1 linked violation
October 25, 2011State Public Notification issued1 linked violation
October 25, 2011State Public Notification issued1 linked violation
October 25, 2011State Public Notification issued1 linked violation
October 25, 2011State Public Notification issued1 linked violation
October 21, 2011State Public Notification issued1 linked violation
October 21, 2011State Public Notification issued1 linked violation
October 21, 2011State Compliance achieved1 linked violation
October 21, 2011State Formal Notice of Violation issued1 linked violation
October 21, 2011State Formal Notice of Violation issued1 linked violation
October 21, 2011State Formal Notice of Violation issued1 linked violation
October 21, 2011State Public Notification issued1 linked violation
October 1, 2011State Compliance achieved1 linked violation
September 12, 2011State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
September 12, 2011State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
September 7, 2011State Compliance achieved1 linked violation
September 7, 2011State Compliance achieved1 linked violation
September 7, 2011State Compliance achieved1 linked violation
September 7, 2011State Compliance achieved1 linked violation
September 7, 2011State Compliance achieved1 linked violation
September 7, 2011State Compliance achieved1 linked violation
September 7, 2011State Compliance achieved1 linked violation
September 7, 2011State Compliance achieved1 linked violation
September 7, 2011State Compliance achieved1 linked violation
September 7, 2011State Compliance achieved1 linked violation
September 7, 2011State Compliance achieved1 linked violation
September 7, 2011State Compliance achieved1 linked violation
September 7, 2011State Compliance achieved1 linked violation
September 7, 2011State Compliance achieved1 linked violation
September 7, 2011State Compliance achieved1 linked violation
September 7, 2011State Compliance achieved1 linked violation
December 9, 2009State Compliance achievedgeneral compliance action — not tied to a specific violation on record

Contact

Navajo Tribal Utility Authority

9287296277

Ft Defiance, AZ 86504