RANCHO SIERRITA WELL ASSOC
Arizona - Community Water System - PWSID: AZ0410286
System Information
| PWSID | AZ0410286 |
| System Name | RANCHO SIERRITA WELL ASSOC |
| 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 | Aug 19, 1995 |
| Last Reported | Mar 12, 2026 |
Location & Contact
| State | Arizona |
| City | TUCSON |
| ZIP Code | 85736 |
| Address | 10390 S. Sierrita Mountain Rd. |
| Organization | HAYDEN, KAREN |
| Phone | 520-822-1311 |
Population & Service
| Population Served | 55 |
| Service Connections | 30 |
Drinking Water Violations (76)
This water system has 76 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2025 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Oct 1, 2025 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Mar 1, 2024 | - | RPT | No | No | - | - | - | Resolved | Apr 22, 2024 | - | |
| Mar 1, 2024 | - | RPT | No | No | - | - | - | Resolved | Apr 22, 2024 | - | |
| Jan 1, 2024 | - | RPT | No | No | - | - | - | Resolved | Feb 21, 2024 | - | |
| Jan 1, 2024 | - | RPT | No | No | - | - | - | Resolved | Feb 21, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Nov 5, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Nov 5, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Nov 5, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2024 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Nov 5, 2024 | - | |
| Aug 1, 2019 | - | RPT | No | No | - | - | - | Resolved | Sep 11, 2019 | - | |
| Aug 1, 2019 | - | RPT | No | No | - | - | - | Resolved | Sep 11, 2019 | - | |
| Aug 1, 2019 | - | RPT | No | No | - | - | - | Resolved | Sep 11, 2019 | - | |
| Jul 1, 2019 | - | RPT | No | No | - | - | - | Resolved | Aug 21, 2019 | - | |
| Jul 1, 2019 | - | RPT | No | No | - | - | - | Resolved | Aug 21, 2019 | - | |
| Jul 1, 2018 | Sep 30, 2018 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2018 | - | |
| Nov 1, 2017 | - | RPT | No | No | - | - | - | Resolved | Dec 29, 2017 | - | |
| Sep 1, 2017 | Sep 30, 2017 | MCL | Yes | No | - | - | - | Resolved | Sep 30, 2017 | - | |
| Sep 1, 2017 | Sep 30, 2017 | MCL | Yes | No | - | - | - | Resolved | Sep 30, 2017 | - | |
| Sep 1, 2017 | Sep 30, 2017 | MCL | Yes | No | - | - | - | Resolved | Sep 30, 2017 | - | |
| Sep 1, 2017 | Sep 30, 2017 | MCL | Yes | No | - | - | - | Resolved | Sep 30, 2017 | - | |
| Sep 1, 2017 | Sep 30, 2017 | MCL | Yes | No | - | - | - | Resolved | Sep 30, 2017 | - | |
| Jun 21, 2017 | - | MR | No | Yes | - | - | - | Resolved | Sep 5, 2017 | - | |
| Jun 21, 2017 | - | MR | No | Yes | - | - | - | Resolved | Sep 5, 2017 | - | |
| Jun 5, 2017 | - | RPT | No | No | - | - | - | Resolved | Sep 22, 2017 | - | |
| Jun 5, 2017 | - | RPT | No | No | - | - | - | Resolved | Sep 22, 2017 | - | |
| Jun 5, 2017 | - | RPT | No | No | - | - | - | Resolved | Sep 22, 2017 | - | |
| Jun 5, 2017 | - | RPT | No | No | - | - | - | Resolved | Sep 22, 2017 | - | |
| Jun 5, 2017 | - | RPT | No | No | - | - | - | Resolved | Sep 22, 2017 | - | |
| Oct 1, 2015 | - | Other | No | No | - | - | - | Resolved | Feb 10, 2016 | - | |
| Oct 1, 2015 | - | Other | No | No | - | - | - | Resolved | Feb 10, 2016 | - | |
| Jul 1, 2015 | - | Other | No | No | - | - | - | Resolved | Jul 7, 2016 | - | |
| Jul 1, 2015 | - | Other | No | No | - | - | - | Resolved | Jul 7, 2016 | - | |
| Jul 1, 2014 | - | Other | No | No | - | - | - | Resolved | Aug 1, 2014 | - | |
| Oct 1, 2013 | - | Other | No | No | - | - | - | Resolved | Nov 15, 2013 | - | |
| Sep 1, 2013 | Sep 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2013 | - | |
| Sep 1, 2013 | Sep 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2013 | - | |
| Jul 1, 2013 | - | Other | No | No | - | - | - | Resolved | Jul 15, 2013 | - | |
| Jan 1, 2011 | Jan 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2011 | - | |
| Jan 1, 2011 | Jan 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2011 | - | |
| Aug 1, 2010 | Aug 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2010 | - | |
| Aug 1, 2010 | Aug 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2010 | - | |
| Jul 1, 2008 | - | Other | No | No | - | - | - | Resolved | Aug 4, 2008 | - | |
| Oct 1, 2007 | - | MR | No | No | - | TT | - | Resolved | Sep 8, 2008 | - | |
| Oct 1, 2007 | - | MR | No | No | - | TT | - | Resolved | Sep 8, 2008 | - | |
| Sep 1, 2007 | Sep 30, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2007 | - | |
| Aug 1, 2007 | Aug 31, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2007 | - | |
| Jul 1, 2007 | - | Other | No | No | - | - | - | Resolved | Aug 16, 2007 | - | |
| Jul 1, 2006 | - | Other | No | No | - | - | - | Resolved | Jul 31, 2006 | - | |
| Oct 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Dec 6, 2006 | - |
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.