Ft Defiance, NN
Casamero Cup NTUA Water System
Consumer Confidence Report status
Casamero Cup 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 Casamero Cup 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)
- NN3503060
- System type
- Community Water System
- Population served
- 48
- Service connections
- 14
- Ownership
- Native American tribal
- Water source
- groundwater (wells)
Casamero Cup NTUA is one of 125 community water systems in Navajo Nation in the 500 or fewer people size category, serving 48 people from groundwater.
As of August 1, 2026, its federal record holds 76 entries between 2007 and 2016, of which 2 remain open; none are health-based.
Of the 76, 72 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 synthetic organic chemicals, volatile organic chemicals, and the Stage 2 Disinfectants and Disinfection Byproducts Rule.
Violation history
Monitoring, Routine (IDSE)
—TTHM
July 1, 2016 – August 1, 2016
ResolvedMonitoring, Routine (IDSE)
—Total Haloacetic Acids (HAA5)
July 1, 2016 – August 1, 2016
ResolvedSample Siting Plan Errors (RTCR)
—Revised Total Coliform Rule
April 1, 2016
UnaddressedMonitoring, Routine (IDSE)
—Total Haloacetic Acids (HAA5)
April 1, 2016 – June 30, 2016
ResolvedMonitoring, Routine (IDSE)
—TTHM
April 1, 2016 – June 30, 2016
ResolvedMonitoring, Routine (IDSE)
—TTHM
January 1, 2016 – March 28, 2016
ResolvedMonitoring, Routine (IDSE)
—Total Haloacetic Acids (HAA5)
January 1, 2016 – March 28, 2016
ResolvedMonitoring, Routine (IDSE)
—TTHM
April 1, 2015 – June 24, 2015
ResolvedMonitoring, Routine (IDSE)
—Total Haloacetic Acids (HAA5)
April 1, 2015 – June 24, 2015
ResolvedMonitoring, Routine (IDSE)
—Total Haloacetic Acids (HAA5)
October 1, 2014 – December 31, 2014
ResolvedMonitoring, Routine (IDSE)
—TTHM
October 1, 2014 – December 31, 2014
ResolvedMonitoring, Routine (IDSE)
—TTHM
July 1, 2014 – September 30, 2014
ResolvedMonitoring, Routine (IDSE)
—Total Haloacetic Acids (HAA5)
July 1, 2014 – September 30, 2014
ResolvedMonitoring, Routine (IDSE)
—TTHM
April 1, 2014 – June 30, 2014
ResolvedMonitoring, Routine (IDSE)
—Total Haloacetic Acids (HAA5)
April 1, 2014 – June 30, 2014
ResolvedFailure 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-basedTTHM
October 1, 2012 – December 31, 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
ResolvedMonitoring, Regular
—Nitrite
January 1, 2010 – December 31, 2010
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2010 – December 31, 2010
ResolvedMonitoring and Reporting (DBP)
—TTHM
January 1, 2010 – December 31, 2010
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Benzo(a)pyrene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Total Polychlorinated Biphenyls (PCB)
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—ETHYLENE DIBROMIDE
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Xylenes, Total
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Chlordane
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Benzene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Toluene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Styrene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Endrin
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Methoxychlor
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Toxaphene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Dalapon
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Diquat
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Endothall
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Glyphosate
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—OXAMYL
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Simazine
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Picloram
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Dinoseb
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Carbofuran
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Atrazine
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—LASSO
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—2,3,7,8-TCDD
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Heptachlor
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Heptachlor epoxide
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—2,4-D
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—2,4,5-TP
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
August 1, 2007 – August 31, 2007
Resolved
Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2016 – August 1, 2016 | Monitoring, Routine (IDSE) | TTHM | — | Resolved |
| July 1, 2016 – August 1, 2016 | Monitoring, Routine (IDSE) | Total Haloacetic Acids (HAA5) | — | Resolved |
| April 1, 2016 | Sample Siting Plan Errors (RTCR) | Revised Total Coliform Rule | — | Unaddressed |
| April 1, 2016 – June 30, 2016 | Monitoring, Routine (IDSE) | Total Haloacetic Acids (HAA5) | — | Resolved |
| April 1, 2016 – June 30, 2016 | Monitoring, Routine (IDSE) | TTHM | — | Resolved |
| January 1, 2016 – March 28, 2016 | Monitoring, Routine (IDSE) | TTHM | — | Resolved |
| January 1, 2016 – March 28, 2016 | Monitoring, Routine (IDSE) | Total Haloacetic Acids (HAA5) | — | Resolved |
| April 1, 2015 – June 24, 2015 | Monitoring, Routine (IDSE) | TTHM | — | Resolved |
| April 1, 2015 – June 24, 2015 | Monitoring, Routine (IDSE) | Total Haloacetic Acids (HAA5) | — | Resolved |
| October 1, 2014 – December 31, 2014 | Monitoring, Routine (IDSE) | Total Haloacetic Acids (HAA5) | — | Resolved |
| October 1, 2014 – December 31, 2014 | Monitoring, Routine (IDSE) | TTHM | — | Resolved |
| July 1, 2014 – September 30, 2014 | Monitoring, Routine (IDSE) | TTHM | — | Resolved |
| July 1, 2014 – September 30, 2014 | Monitoring, Routine (IDSE) | Total Haloacetic Acids (HAA5) | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Routine (IDSE) | TTHM | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Routine (IDSE) | Total Haloacetic Acids (HAA5) | — | Resolved |
| 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, 2012 – December 31, 2012 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | 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 |
| January 1, 2010 – December 31, 2010 | Monitoring, Regular | Nitrite | — | Resolved |
| January 1, 2010 – December 31, 2010 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| January 1, 2010 – December 31, 2010 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Total Polychlorinated Biphenyls (PCB) | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Chlordane | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Endrin | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Methoxychlor | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Toxaphene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Dalapon | — | 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 | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | OXAMYL | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Picloram | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Dinoseb | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Carbofuran | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Atrazine | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | LASSO | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 2,3,7,8-TCDD | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| August 1, 2007 – August 31, 2007 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | 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
- October 26, 2022State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- March 29, 2022State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
- March 29, 2022State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
- August 28, 2017State Formal Notice of Violation issued1 linked violation
- August 28, 2017State Public Notification issued1 linked violation
- December 9, 2016State Formal Notice of Violation issued1 linked violation
- December 9, 2016State Formal Notice of Violation issued1 linked violation
- August 31, 2016State Public Notification issued1 linked violation
- August 31, 2016State Public Notification issued1 linked violation
- August 31, 2016State Formal Notice of Violation issued1 linked violation
- August 31, 2016State Formal Notice of Violation issued1 linked violation
- August 1, 2016State Compliance achieved1 linked violation
- August 1, 2016State Compliance achieved1 linked violation
- August 1, 2016State Compliance achieved1 linked violation
- August 1, 2016State Compliance achieved1 linked violation
- May 31, 2016State Formal Notice of Violation issued1 linked violation
- May 31, 2016State Public Notification issued1 linked violation
- May 31, 2016State Public Notification issued1 linked violation
- May 31, 2016State Formal Notice of Violation issued1 linked violation
- March 28, 2016State Compliance achieved1 linked violation
- March 28, 2016State Compliance achieved1 linked violation
- August 21, 2015State Public Notification issued1 linked violation
- August 21, 2015State Formal Notice of Violation issued1 linked violation
- August 21, 2015State Formal Notice of Violation issued1 linked violation
- August 21, 2015State Public Notification issued1 linked violation
- June 24, 2015State Compliance achieved1 linked violation
- June 24, 2015State Compliance achieved1 linked violation
- February 13, 2015State Compliance achieved1 linked violation
- February 13, 2015State Compliance achieved1 linked violation
- February 13, 2015State Compliance achieved1 linked violation
- February 13, 2015State Compliance achieved1 linked violation
- February 13, 2015State Compliance achieved1 linked violation
- February 13, 2015State 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 Public Notification issued1 linked violation
- November 17, 2014State Public Notification issued1 linked violation
- November 4, 2014State Compliance achieved1 linked violation
- November 4, 2014State Compliance achieved1 linked violation
- November 4, 2014State Compliance achieved1 linked violation
- November 4, 2014State Compliance achieved1 linked violation
- November 4, 2014State Compliance achieved1 linked violation
- November 4, 2014State Compliance achieved1 linked violation
- August 28, 2014State Formal Notice of Violation issued1 linked violation
- August 28, 2014State Formal Notice of Violation issued1 linked violation
- August 28, 2014State Public Notification requested1 linked violation
- August 28, 2014State Public Notification requested1 linked violation
- March 13, 2014State Formal Notice of Violation issued1 linked violation
- March 13, 2014State Public Notification requested1 linked violation
- March 13, 2014State Formal Notice of Violation issued1 linked violation
- March 13, 2014State Public Notification requested1 linked violation
- August 27, 2013State Compliance achieved1 linked violation
- March 12, 2013State Formal Notice of Violation issued1 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
- 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
- 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
- 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
- October 28, 2011State Compliance achieved1 linked violation
- October 28, 2011State Compliance achieved1 linked violation
- October 21, 2011State Compliance achieved1 linked violation
- July 21, 2008State Formal Notice of Violation issued1 linked violation
- March 27, 2008State Public Notification received1 linked violation
- March 27, 2008State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- March 27, 2008State Compliance achieved1 linked violation
Common questions
Is Casamero Cup NTUA required to publish a Consumer Confidence Report?
- Yes. Casamero Cup 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 Casamero Cup NTUA’s next Consumer Confidence Report due?
- Casamero Cup NTUA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Casamero Cup NTUA have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show 2 items for Casamero Cup 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