Sawmill NTUA
Arizona — Community Water System — PWSID: NN0403025
System Information
| PWSID | NN0403025 |
| System Name | Sawmill NTUA |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Native American |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 2, 1984 |
| 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 | 838 |
| Service Connections | 245 |
Drinking Water Violations (61)
This water system has 61 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2024 | Dec 31, 2024 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 25, 2024 | Lead and Copper Rule |
| Jan 1, 2024 | Dec 31, 2024 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 25, 2024 | Lead and Copper Rule |
| Jan 1, 2024 | Dec 31, 2024 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 25, 2024 | Lead and Copper Rule |
| Jan 1, 2020 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 25, 2020 | Lead and Copper Rule |
| Jan 1, 2020 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 25, 2020 | Lead and Copper Rule |
| Jan 1, 2020 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 25, 2020 | Lead and Copper Rule |
| Apr 1, 2016 | — | Revised Total Coliform Rule | Other | No | No | — | — | — | Resolved | Sep 30, 2025 | Revised Total Coliform Rule |
| Apr 1, 2016 | — | Revised Total Coliform Rule | Other | No | No | — | — | — | Resolved | Sep 30, 2025 | Revised Total Coliform Rule |
| Jan 1, 2016 | Dec 31, 2016 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 9, 2016 | Lead and Copper Rule |
| Jan 1, 2016 | Dec 31, 2016 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 9, 2016 | Lead and Copper Rule |
| Jan 1, 2015 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 7, 2015 | Lead and Copper Rule |
| Jan 1, 2015 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 7, 2015 | Lead and Copper Rule |
| Jan 1, 2015 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 7, 2015 | Lead and Copper Rule |
| Oct 1, 2013 | — | Stage 2 Disinfectants and Disinfection Byproducts Rule | MR | No | Yes | — | — | — | Resolved | Feb 18, 2025 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2013 | — | Stage 2 Disinfectants and Disinfection Byproducts Rule | MR | No | Yes | — | — | — | Resolved | Feb 18, 2025 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2013 | — | Stage 2 Disinfectants and Disinfection Byproducts Rule | MR | No | Yes | — | — | — | Resolved | Feb 18, 2025 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Dec 1, 2012 | Dec 31, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2012 | Total Coliform Rule |
| Dec 1, 2012 | Dec 31, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2012 | Total Coliform Rule |
| Nov 1, 2012 | Nov 30, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2012 | Total Coliform Rule |
| Jun 1, 2010 | Jun 30, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2010 | Total Coliform Rule |
| Jan 1, 2010 | Dec 31, 2010 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2010 | Nitrate Rule |
| Jun 1, 2002 | Jun 30, 2002 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2002 | Total Coliform Rule |
| Jun 1, 2002 | Jun 30, 2002 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Jun 30, 2002 | Total Coliform Rule |
| May 1, 2002 | May 31, 2002 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2002 | Total Coliform Rule |
| May 1, 2002 | May 31, 2002 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | May 31, 2002 | Total Coliform Rule |
| Apr 1, 2002 | Apr 30, 2002 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Apr 30, 2002 | Total Coliform Rule |
| Apr 1, 2002 | Apr 30, 2002 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2002 | Total Coliform Rule |
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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.