Buffalo Springs NTUA
Arizona - Community Water System - PWSID: NN3500264
System Information
| PWSID | NN3500264 |
| System Name | Buffalo Springs 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 | 397 |
| Service Connections | 116 |
Drinking Water Violations (71)
This water system has 71 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2016 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Oct 1, 2013 | - | MR | No | Yes | - | - | - | Resolved | Feb 18, 2025 | - | |
| Oct 1, 2013 | - | MR | No | Yes | - | - | - | Resolved | Feb 18, 2025 | - | |
| Oct 1, 2013 | Oct 31, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2013 | - | |
| Oct 1, 2013 | Oct 31, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2013 | - | |
| Oct 1, 2013 | Oct 31, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2013 | - | |
| Oct 1, 2013 | - | MR | No | Yes | - | - | - | Resolved | Feb 18, 2025 | - | |
| Dec 1, 2012 | Dec 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2012 | - | |
| Dec 1, 2012 | Dec 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2012 | - | |
| Nov 1, 2012 | Nov 30, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2012 | - | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2011 | - | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2011 | - | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2011 | - | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2011 | - | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2011 | - | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2011 | - | |
| Jan 1, 2010 | Dec 31, 2010 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Nov 1, 2007 | Nov 30, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2007 | - | |
| Nov 1, 2007 | Nov 30, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2007 | - | |
| Nov 1, 2007 | Nov 30, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2007 | - | |
| Jul 1, 2005 | Jul 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 22, 2005 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 0.007 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 0.7 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 0.075 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2005 | Dec 31, 2010 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | No | - | 15 pCi/L | - | Resolved | Dec 31, 2004 | - | |
| Aug 1, 2003 | Aug 31, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2003 | - | |
| Aug 1, 2002 | Aug 31, 2002 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2002 | - | |
| Aug 1, 2002 | Aug 31, 2002 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2002 | - | |
| Aug 1, 2002 | Aug 31, 2002 | MR | No | No | - | 5% of samples | - | Archived | Aug 31, 2002 | - | |
| Jul 1, 2002 | Jul 31, 2002 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2002 | - | |
| Jul 1, 2002 | Jul 31, 2002 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2002 | - | |
| Jul 1, 2002 | Jul 31, 2002 | MCL | Yes | No | - | 5% of samples | - | Archived | Jul 31, 2002 | - |
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.