Ft Defiance, NN
Red Rock NTUA Water System
Consumer Confidence Report status
Red Rock NTUA must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show 2 items for Red Rock NTUA that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)
- NN3500335
- System type
- Community Water System
- Population served
- 1,652
- Service connections
- 483
- Ownership
- Native American tribal
- Water source
- groundwater (wells)
Red Rock NTUA is among the 24 largest community water systems in Navajo Nation, serving 1,652 people from groundwater.
As of August 1, 2026, its federal record holds 37 entries between 2004 and 2020, of which 2 remain open; none are health-based.
Of the 37, 32 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves volatile organic chemicals, the Total Coliform Rules, and inorganic chemicals.
Violation history
Monitoring, Routine (IDSE)
—TTHM
January 1, 2020 – December 31, 2020
ResolvedMonitoring, Routine (IDSE)
—Total Haloacetic Acids (HAA5)
January 1, 2020 – December 31, 2020
ResolvedSample Siting Plan Errors (RTCR)
—Revised Total Coliform Rule
April 1, 2016
UnaddressedFailure Submit IDSE/Subpart V Plan Rpt
—Stage 2 Disinfectants and Disinfection Byproducts Rule
October 1, 2013
UnaddressedMonitoring, Routine Major (TCR)
—Coliform (TCR)
December 1, 2012 – December 31, 2012
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
November 1, 2012 – November 30, 2012
ResolvedMaximum Contaminant Level Violation, Average
Health-basedAntimony, Total
October 1, 2010 – December 31, 2010
ResolvedMaximum Contaminant Level Violation, Average
Health-basedThallium, Total
October 1, 2010 – December 31, 2010
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
July 1, 2010 – July 31, 2010
ResolvedMonitoring, Regular
—Nitrite
January 1, 2010 – December 31, 2010
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
September 1, 2008 – September 30, 2008
ResolvedMonitoring, Regular
—Mercury
January 1, 2008 – September 10, 2008
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
—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
—o-Dichlorobenzene
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
—Toluene
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
—Gross Alpha, Excl. Radon and U
January 1, 2004 – December 31, 2004
Resolved
Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| January 1, 2020 – December 31, 2020 | Monitoring, Routine (IDSE) | TTHM | — | Resolved |
| January 1, 2020 – December 31, 2020 | Monitoring, Routine (IDSE) | Total Haloacetic Acids (HAA5) | — | Resolved |
| April 1, 2016 | Sample Siting Plan Errors (RTCR) | Revised Total Coliform Rule | — | Unaddressed |
| October 1, 2013 | Failure Submit IDSE/Subpart V Plan Rpt | Stage 2 Disinfectants and Disinfection Byproducts Rule | — | Unaddressed |
| 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, 2010 – December 31, 2010 | Maximum Contaminant Level Violation, Average | Antimony, Total | Health-based | Resolved |
| October 1, 2010 – December 31, 2010 | Maximum Contaminant Level Violation, Average | Thallium, Total | Health-based | Resolved |
| July 1, 2010 – July 31, 2010 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| January 1, 2010 – December 31, 2010 | Monitoring, Regular | Nitrite | — | Resolved |
| September 1, 2008 – September 30, 2008 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| January 1, 2008 – September 10, 2008 | Monitoring, Regular | Mercury | — | 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 | o-Dichlorobenzene | — | 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 | Toluene | — | 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, 2004 – December 31, 2004 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Resolved |
Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet
Enforcement actions
- August 28, 2024State Formal Notice of Violation issued1 linked violation
- July 20, 2021State Compliance achieved1 linked violation
- July 20, 2021State Compliance achieved1 linked violation
- March 31, 2021State Formal Notice of Violation issued1 linked violation
- March 31, 2021State Formal Notice of Violation issued1 linked violation
- March 31, 2021State Public Notification issued1 linked violation
- March 31, 2021State Public Notification issued1 linked violation
- August 28, 2017State Formal Notice of Violation issued1 linked violation
- August 28, 2017State Public Notification 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 Other1 linked violation
- February 21, 2012State Other1 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
- November 18, 2011State Public Notification issued1 linked violation
- November 18, 2011State Formal Notice of Violation issued1 linked violation
- October 28, 2011State Compliance achieved1 linked violation
- October 28, 2011State Compliance achieved1 linked violation
- October 28, 2011State Compliance achieved1 linked violation
- October 21, 2011State Compliance achieved1 linked violation
- January 20, 2011State Compliance achieved1 linked violation
- September 15, 2010State Compliance achieved1 linked violation
- September 15, 2010State Formal Notice of Violation issued1 linked violation
- August 10, 2010State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- July 22, 2010State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- October 14, 2008State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- October 14, 2008State Public Notification received1 linked violation
- September 10, 2008State Compliance achieved1 linked violation
- March 22, 2007State Compliance achieved1 linked violation
Common questions
Is Red Rock NTUA required to publish a Consumer Confidence Report?
- Yes. Red Rock NTUA is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is Red Rock NTUA’s next Consumer Confidence Report due?
- Red Rock NTUA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Red Rock NTUA have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show 2 items for Red Rock NTUA that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
Navajo Tribal Utility Authority
9287296277
Ft Defiance, AZ 86504