WELLS FARGO WATER COMPANY
Arizona — Community Water System — PWSID: AZ0410269
System Information
| PWSID | AZ0410269 |
| System Name | WELLS FARGO WATER COMPANY |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Mixed |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 18, 1992 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | Arizona |
| City | TUCSON |
| ZIP Code | 85754 |
| Address | ATTN SW UTILTIY MGMT - COMPLIANCE |
| Organization | WELLS FARGO WATER CO INC |
| Phone | 520-601-0323 |
Population & Service
| Population Served | 83 |
| Service Connections | 34 |
Drinking Water Violations (72)
This water system has 72 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, 2021 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 10, 2021 | Consumer Confidence Rule |
| Jul 1, 2021 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 10, 2021 | Consumer Confidence Rule |
| Oct 1, 2017 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Nov 17, 2017 | Consumer Confidence Rule |
| Jul 1, 2017 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Nov 17, 2017 | Consumer Confidence Rule |
| Oct 1, 2015 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Oct 14, 2016 | Consumer Confidence Rule |
| Oct 1, 2015 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Oct 14, 2016 | Consumer Confidence Rule |
| Jul 1, 2015 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Oct 14, 2016 | Consumer Confidence Rule |
| Jul 1, 2015 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Oct 14, 2016 | Consumer Confidence Rule |
| Mar 1, 2015 | Mar 31, 2015 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2015 | Total Coliform Rule |
| Mar 1, 2015 | Mar 31, 2015 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2015 | Total Coliform Rule |
| Sep 1, 2014 | Sep 30, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2014 | Total Coliform Rule |
| Sep 1, 2014 | Sep 30, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2014 | Total Coliform Rule |
| Jul 1, 2014 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 18, 2014 | Consumer Confidence Rule |
| Oct 1, 2013 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Apr 14, 2014 | Consumer Confidence Rule |
| Oct 1, 2013 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Apr 14, 2014 | Consumer Confidence Rule |
| Jul 1, 2013 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 18, 2014 | Consumer Confidence Rule |
| Oct 1, 2012 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Apr 14, 2014 | Consumer Confidence Rule |
| Jul 1, 2012 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 18, 2014 | Consumer Confidence Rule |
| Oct 1, 2011 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Apr 14, 2014 | Consumer Confidence Rule |
| Jul 1, 2011 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 18, 2014 | Consumer Confidence Rule |
| Oct 1, 2010 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Apr 14, 2014 | Consumer Confidence Rule |
| Aug 1, 2010 | Aug 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2010 | Total Coliform Rule |
| Aug 1, 2010 | Aug 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2010 | Total Coliform Rule |
| Jul 1, 2010 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 18, 2014 | Consumer Confidence Rule |
| Jul 1, 2009 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 18, 2014 | Consumer Confidence Rule |
| Jun 1, 2009 | Jun 30, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2009 | Total Coliform Rule |
| Jun 1, 2009 | Jun 30, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2009 | Total Coliform Rule |
| Mar 1, 2009 | Mar 31, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2009 | Total Coliform Rule |
| Mar 1, 2009 | Mar 31, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2009 | Total Coliform Rule |
| Feb 1, 2009 | Feb 28, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2009 | Total Coliform Rule |
| Feb 1, 2009 | Feb 28, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2009 | Total Coliform Rule |
| Feb 1, 2009 | Feb 28, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2009 | Total Coliform Rule |
| Jan 1, 2009 | Jan 31, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2009 | Total Coliform Rule |
| Jan 1, 2009 | Jan 31, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2009 | Total Coliform Rule |
| Jul 1, 2008 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 16, 2008 | Consumer Confidence Rule |
| Sep 1, 2007 | Sep 30, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2007 | Total Coliform Rule |
| Aug 1, 2007 | Aug 31, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2007 | Total Coliform Rule |
| Jul 1, 2007 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 16, 2007 | Consumer Confidence Rule |
| Jul 1, 2006 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 12, 2006 | Consumer Confidence Rule |
| Oct 1, 2005 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 6, 2006 | Lead and Copper Rule |
| Jul 1, 2005 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 25, 2005 | Consumer Confidence Rule |
| Oct 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 1, 2006 | Lead and Copper Rule |
| Jul 1, 2004 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 19, 2004 | Consumer Confidence Rule |
| Aug 1, 2003 | Aug 31, 2003 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2003 | Total Coliform Rule |
| Jul 1, 2003 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 2, 2003 | Consumer Confidence Rule |
| Jul 1, 2002 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Unaddressed | — | Consumer Confidence Rule |
| Aug 1, 2001 | Aug 31, 2001 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2001 | Total Coliform Rule |
| Jul 1, 2001 | Jul 31, 2001 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2001 | Total Coliform Rule |
| Jan 1, 1998 | Dec 31, 2000 | p-Dichlorobenzene | MR | No | Yes | — | 0.075 mg/L | — | Resolved | Dec 31, 2000 | Volatile Organic Chemicals |
| Jan 1, 1998 | Dec 31, 2000 | 2,4,5-TP | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Dec 31, 2000 | Synthetic Organic Chemicals |
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.