Red Mesa NTUA
Arizona — Community Water System — PWSID: NN4903017
System Information
| PWSID | NN4903017 |
| System Name | Red Mesa NTUA |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Native American |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Aug 2, 1994 |
| Last Reported | Dec 31, 2025 |
Location & Contact
| State | Arizona |
| City | Ft Defiance |
| ZIP Code | 86504 |
| Address | Office of Deputy General Manager |
| Organization | Navajo Tribal Utility Authority |
| Phone | 9287296277 |
Population & Service
| Population Served | 1,023 |
| Service Connections | 299 |
Drinking Water Violations (108)
This water system has 108 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | .01163 MG/L | 0.010 mg/L | — | Resolved | Sep 30, 2024 | — | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | .01163 MG/L | 0.010 mg/L | — | Resolved | Sep 30, 2024 | — | |
| Jul 1, 2024 | — | Other | No | No | — | — | — | Unaddressed | — | — | |
| Jul 1, 2024 | — | Other | No | No | — | — | — | Unaddressed | — | — | |
| Jul 1, 2024 | — | Other | No | No | — | — | — | Unaddressed | — | — | |
| Apr 1, 2024 | — | Other | No | No | — | — | — | Unaddressed | — | — | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | .01305 MG/L | 0.010 mg/L | — | Resolved | Jun 30, 2024 | — | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | .01305 MG/L | 0.010 mg/L | — | Resolved | Jun 30, 2024 | — | |
| Jan 1, 2024 | — | Other | No | No | — | — | — | Unaddressed | — | — | |
| Jan 1, 2024 | Mar 31, 2024 | MCL | Yes | No | .01323 MG/L | 0.010 mg/L | — | Resolved | Mar 31, 2024 | — | |
| Jan 1, 2024 | Mar 31, 2024 | MCL | Yes | No | .01323 MG/L | 0.010 mg/L | — | Resolved | Mar 31, 2024 | — | |
| Oct 1, 2023 | — | Other | No | No | — | — | — | Unaddressed | — | — | |
| Oct 1, 2023 | Dec 31, 2023 | MCL | Yes | No | .0126 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MCL | Yes | No | .0126 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2022 | Mar 31, 2022 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Mar 31, 2022 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Feb 12, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Feb 12, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Feb 12, 2019 | — | |
| Jan 1, 2017 | Mar 31, 2017 | MCL | Yes | No | .0106 MG/L | 0.010 mg/L | — | Resolved | Mar 31, 2017 | — | |
| Jan 1, 2017 | Mar 31, 2017 | MCL | Yes | No | .0106 MG/L | 0.010 mg/L | — | Resolved | Mar 31, 2017 | — | |
| Jan 1, 2017 | Mar 31, 2017 | MCL | Yes | No | .0106 MG/L | 0.010 mg/L | — | Resolved | Mar 31, 2017 | — | |
| Jan 1, 2017 | — | Other | No | No | — | — | — | Resolved | May 19, 2017 | — | |
| Apr 1, 2016 | — | Other | No | No | — | — | — | Resolved | Mar 7, 2025 | — | |
| Apr 1, 2016 | — | Other | No | No | — | — | — | Resolved | Mar 7, 2025 | — | |
| Oct 1, 2015 | Dec 31, 2015 | MCL | Yes | No | .0105 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2015 | — | |
| Oct 1, 2015 | Dec 31, 2015 | MCL | Yes | No | .0105 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2015 | — | |
| Oct 1, 2015 | Dec 31, 2015 | MCL | Yes | No | .0105 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2015 | — | |
| Jul 1, 2014 | — | Other | No | No | — | — | — | Resolved | Jun 5, 2014 | — | |
| Jul 1, 2014 | — | Other | No | No | — | — | — | Resolved | Jun 5, 2014 | — | |
| Jul 1, 2014 | Sep 30, 2014 | MCL | Yes | No | .0109 MG/L | 0.010 mg/L | — | Resolved | Sep 30, 2014 | — | |
| Jul 1, 2014 | Sep 30, 2014 | MCL | Yes | No | .0109 MG/L | 0.010 mg/L | — | Resolved | Sep 30, 2014 | — | |
| Apr 1, 2014 | Jun 30, 2014 | MCL | Yes | No | .0122 MG/L | 0.010 mg/L | — | Resolved | Jun 30, 2014 | — | |
| Apr 1, 2014 | Jun 30, 2014 | MCL | Yes | No | .0122 MG/L | 0.010 mg/L | — | Resolved | Jun 30, 2014 | — | |
| Apr 1, 2014 | — | Other | No | No | — | — | — | Resolved | Nov 17, 2014 | — | |
| Apr 1, 2014 | — | Other | No | No | — | — | — | Resolved | Nov 17, 2014 | — | |
| Jan 1, 2014 | — | Other | No | No | — | — | — | Resolved | Nov 17, 2014 | — | |
| Jan 1, 2014 | — | Other | No | No | — | — | — | Resolved | Nov 17, 2014 | — | |
| Jan 1, 2014 | Mar 31, 2014 | MCL | Yes | No | .01256 MG/L | 0.010 mg/L | — | Resolved | Mar 31, 2014 | — | |
| Jan 1, 2014 | Mar 31, 2014 | MCL | Yes | No | .01256 MG/L | 0.010 mg/L | — | Resolved | Mar 31, 2014 | — | |
| Oct 1, 2013 | — | Other | No | No | — | — | — | Resolved | Nov 17, 2014 | — | |
| Oct 1, 2013 | — | MR | No | Yes | — | — | — | Resolved | Feb 10, 2025 | — | |
| Oct 1, 2013 | Dec 31, 2013 | MCL | Yes | No | .01329 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Oct 1, 2013 | Dec 31, 2013 | MCL | Yes | No | .01329 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Oct 1, 2013 | Dec 31, 2013 | MCL | Yes | No | .01329 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Oct 1, 2013 | — | MR | No | Yes | — | — | — | Resolved | Feb 10, 2025 | — | |
| Oct 1, 2013 | — | MR | No | Yes | — | — | — | Resolved | Feb 10, 2025 | — | |
| Oct 1, 2013 | — | Other | No | No | — | — | — | Resolved | Nov 17, 2014 | — | |
| Jul 1, 2013 | Sep 30, 2013 | MCL | Yes | No | .01523 MG/L | 0.010 mg/L | — | Resolved | Sep 30, 2013 | — | |
| Jul 1, 2013 | Sep 30, 2013 | MCL | Yes | No | .01523 MG/L | 0.010 mg/L | — | Resolved | Sep 30, 2013 | — | |
| Apr 1, 2013 | Jun 30, 2013 | MCL | Yes | No | .01568 MG/L | 0.010 mg/L | — | Resolved | Jun 30, 2013 | — |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.