Ft Defiance, NN
Red Mesa NTUA Water System
Current status
4 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)
- NN4903017
- System type
- Community Water System
- Population served
- 1,023
- Service connections
- 299
- Ownership
- Native American tribal
- Water source
- surface water (rivers, lakes, or reservoirs)
Violation history
Public Notification Violation for NPDWR Violation
—Public Notice
July 1, 2024
UnaddressedMaximum Contaminant Level Violation, Average
Health-basedArsenic
July 1, 2024 – September 30, 2024
ResolvedMaximum Contaminant Level Violation, Average
Health-basedArsenic
April 1, 2024 – June 30, 2024
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
April 1, 2024
UnaddressedMaximum Contaminant Level Violation, Average
Health-basedArsenic
January 1, 2024 – March 31, 2024
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
January 1, 2024
UnaddressedPublic Notification Violation for NPDWR Violation
—Public Notice
October 1, 2023
UnaddressedMaximum Contaminant Level Violation, Average
Health-basedArsenic
October 1, 2023 – December 31, 2023
ResolvedMonitoring, Regular
—Arsenic
January 1, 2022 – March 31, 2022
ResolvedMonitoring, Regular
—Arsenic
January 1, 2019 – February 12, 2019
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
January 1, 2017 – May 19, 2017
ResolvedMaximum Contaminant Level Violation, Average
Health-basedArsenic
January 1, 2017 – March 31, 2017
ResolvedSample Siting Plan Errors (RTCR)
—Revised Total Coliform Rule
April 1, 2016 – March 7, 2025
ResolvedMaximum Contaminant Level Violation, Average
Health-basedArsenic
October 1, 2015 – December 31, 2015
ResolvedMaximum Contaminant Level Violation, Average
Health-basedArsenic
July 1, 2014 – September 30, 2014
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
July 1, 2014 – June 5, 2014
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
April 1, 2014 – November 17, 2014
ResolvedMaximum Contaminant Level Violation, Average
Health-basedArsenic
April 1, 2014 – June 30, 2014
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
January 1, 2014 – November 17, 2014
ResolvedMaximum Contaminant Level Violation, Average
Health-basedArsenic
January 1, 2014 – March 31, 2014
ResolvedMaximum Contaminant Level Violation, Average
Health-basedArsenic
October 1, 2013 – December 31, 2013
ResolvedFailure Submit IDSE/Subpart V Plan Rpt
—Stage 2 Disinfectants and Disinfection Byproducts Rule
October 1, 2013 – February 10, 2025
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
October 1, 2013 – November 17, 2014
ResolvedMaximum Contaminant Level Violation, Average
Health-basedArsenic
July 1, 2013 – September 30, 2013
ResolvedMaximum Contaminant Level Violation, Average
Health-basedArsenic
April 1, 2013 – June 30, 2013
ResolvedMaximum Contaminant Level Violation, Average
Health-basedArsenic
January 1, 2013 – March 31, 2013
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
December 1, 2012 – December 31, 2012
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
November 1, 2012 – November 30, 2012
ResolvedMonitoring, Regular
—Nitrite
January 1, 2010 – December 31, 2010
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
September 1, 2007 – September 30, 2007
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Benzene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Toluene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Styrene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Combined Uranium
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Xylenes, Total
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2005 – December 31, 2010
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
January 1, 2004 – December 31, 2004
Resolved
Unaddressed no corrective action on record yetResolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2024 | Public Notification Violation for NPDWR Violation | Public Notice | — | Unaddressed |
| July 1, 2024 – September 30, 2024 | Maximum Contaminant Level Violation, Average | Arsenic | Health-based | Resolved |
| April 1, 2024 – June 30, 2024 | Maximum Contaminant Level Violation, Average | Arsenic | Health-based | Resolved |
| April 1, 2024 | Public Notification Violation for NPDWR Violation | Public Notice | — | Unaddressed |
| January 1, 2024 – March 31, 2024 | Maximum Contaminant Level Violation, Average | Arsenic | Health-based | Resolved |
| January 1, 2024 | Public Notification Violation for NPDWR Violation | Public Notice | — | Unaddressed |
| October 1, 2023 | Public Notification Violation for NPDWR Violation | Public Notice | — | Unaddressed |
| October 1, 2023 – December 31, 2023 | Maximum Contaminant Level Violation, Average | Arsenic | Health-based | Resolved |
| January 1, 2022 – March 31, 2022 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2019 – February 12, 2019 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2017 – May 19, 2017 | Public Notification Violation for NPDWR Violation | Public Notice | — | Resolved |
| January 1, 2017 – March 31, 2017 | Maximum Contaminant Level Violation, Average | Arsenic | Health-based | Resolved |
| April 1, 2016 – March 7, 2025 | Sample Siting Plan Errors (RTCR) | Revised Total Coliform Rule | — | Resolved |
| October 1, 2015 – December 31, 2015 | 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 – June 5, 2014 | Public Notification Violation for NPDWR Violation | Public Notice | — | Resolved |
| April 1, 2014 – November 17, 2014 | Public Notification Violation for NPDWR Violation | Public Notice | — | Resolved |
| April 1, 2014 – June 30, 2014 | Maximum Contaminant Level Violation, Average | Arsenic | Health-based | Resolved |
| January 1, 2014 – November 17, 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 – December 31, 2013 | Maximum Contaminant Level Violation, Average | Arsenic | Health-based | Resolved |
| October 1, 2013 – February 10, 2025 | Failure Submit IDSE/Subpart V Plan Rpt | Stage 2 Disinfectants and Disinfection Byproducts Rule | — | Resolved |
| October 1, 2013 – November 17, 2014 | Public Notification Violation for NPDWR Violation | Public Notice | — | 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 |
| January 1, 2010 – December 31, 2010 | Monitoring, Regular | Nitrite | — | Resolved |
| September 1, 2007 – September 30, 2007 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | 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 | 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 | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2005 – December 31, 2010 | Monitoring, Regular | o-Dichlorobenzene | — | 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, 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, 2004 – December 31, 2004 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Resolved |
Unaddressed no corrective action on record yetResolved addressed and confirmed by the state
Enforcement actions
- April 30, 2025State Formal Notice of Violation issued1 linked violation
- April 30, 2025State Formal Notice of Violation issued1 linked violation
- April 22, 2025State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- April 22, 2025State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- March 7, 2025State Formal Notice of Violation issued1 linked violation
- March 7, 2025State Formal Notice of Violation issued1 linked violation
- March 7, 2025State Compliance achieved1 linked violation
- March 7, 2025State Formal Notice of Violation issued1 linked violation
- February 10, 2025State Compliance achieved1 linked violation
- November 13, 2024State Compliance achieved1 linked violation
- November 13, 2024State Compliance achieved1 linked violation
- November 13, 2024State Compliance achieved1 linked violation
- November 13, 2024State Compliance achieved1 linked violation
- August 28, 2024State Formal Notice of Violation issued1 linked violation
- August 28, 2024State Formal Notice of Violation issued1 linked violation
- August 28, 2024State Formal Notice of Violation issued1 linked violation
- August 28, 2024State Formal Notice of Violation issued1 linked violation
- August 28, 2024State Formal Notice of Violation issued1 linked violation
- August 28, 2024State Formal Notice of Violation issued1 linked violation
- May 19, 2022State Compliance achieved1 linked violation
- January 20, 2022State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- March 31, 2021State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- March 31, 2021State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
- July 10, 2019State Public Notification issued1 linked violation
- July 10, 2019State Formal Notice of Violation issued1 linked violation
- February 12, 2019State Compliance achieved1 linked violation
- August 28, 2017State Public Notification issued1 linked violation
- August 28, 2017State Formal Notice of Violation issued1 linked violation
- June 23, 2017State Public Notification issued1 linked violation
- June 23, 2017State Formal Notice of Violation issued1 linked violation
- May 19, 2017State Compliance achieved1 linked violation
- May 2, 2017State Compliance achieved1 linked violation
- August 31, 2016State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- August 31, 2016State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
- August 2, 2016State Compliance achieved1 linked violation
- July 1, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- May 31, 2016State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
- May 3, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- March 8, 2016State Formal Notice of Violation issued1 linked violation
- March 8, 2016State Public Notification issued1 linked violation
- March 4, 2015State Public Notification requested1 linked violation
- November 17, 2014State Formal Notice of Violation issued1 linked violation
- November 17, 2014State Formal Notice of Violation issued1 linked violation
- November 17, 2014State Formal Notice of Violation issued1 linked violation
- November 17, 2014State Formal Notice of Violation issued1 linked violation
- November 17, 2014State Formal Notice of Violation issued1 linked violation
- November 17, 2014State Formal Notice of Violation issued1 linked violation
- November 17, 2014State Compliance achieved1 linked violation
- November 17, 2014State Compliance achieved1 linked violation
- November 17, 2014State Compliance achieved1 linked violation
- November 17, 2014State Formal Notice of Violation issued1 linked violation
- November 17, 2014State Formal Notice of Violation issued1 linked violation
- November 17, 2014State Formal Notice of Violation issued1 linked violation
- November 3, 2014State Compliance achieved1 linked violation
- November 3, 2014State Compliance achieved1 linked violation
- November 3, 2014State Compliance achieved1 linked violation
- November 3, 2014State Compliance achieved1 linked violation
- November 3, 2014State Compliance achieved1 linked violation
- November 3, 2014State Compliance achieved1 linked violation
- November 3, 2014State Compliance achieved1 linked violation
- June 5, 2014State Compliance achieved1 linked violation
- April 25, 2014State Compliance Meeting conducted1 linked violation
- April 15, 2014State Compliance Meeting conducted1 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
- June 6, 2012State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- June 6, 2012State Variance/Exemption issuedgeneral compliance action — not tied to a specific violation on record
- June 6, 2012State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- June 6, 2012State Variance/Exemption issuedgeneral compliance action — not tied to a specific violation on record
- June 6, 2012State Public Notification issuedgeneral 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 25, 2011State Compliance achieved1 linked violation
- October 25, 2011State Compliance achieved1 linked violation
- October 25, 2011State Compliance achieved1 linked violation
- October 21, 2011State Compliance achieved1 linked violation
- May 5, 2011State Variance/Exemption issuedgeneral compliance action — not tied to a specific violation on record
- July 21, 2008State Violation/Reminder Notice1 linked violation
- March 25, 2008Federal Variance/Exemption issuedgeneral compliance action — not tied to a specific violation on record
- October 11, 2007State Public Notification received1 linked violation
- October 11, 2007State Compliance achieved1 linked violation
- May 9, 2006State Other1 linked violation
- May 9, 2006State Compliance achieved1 linked violation
Contact
Navajo Tribal Utility Authority
9287296277
Ft Defiance, AZ 86504