ELKHORN RANCH
Arizona - Transient Non-Community - PWSID: AZ0420474
System Information
| PWSID | AZ0420474 |
| System Name | ELKHORN RANCH |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Mixed |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Oct 5, 1979 |
| Last Reported | Mar 12, 2026 |
Location & Contact
| State | Arizona |
| City | TUCSON |
| ZIP Code | 85736 |
| Address | ATTN THOMAS MILLER |
| Organization | ELKHORN RANCH |
| Phone | 520-471-2803 |
Population & Service
| Population Served | 40 |
| Service Connections | 30 |
Drinking Water Violations (18)
This water system has 18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 1, 2025 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Nov 1, 2025 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Apr 1, 2023 | - | RPT | No | No | - | - | - | Resolved | May 30, 2023 | - | |
| Apr 1, 2023 | - | RPT | No | No | - | - | - | Resolved | May 30, 2023 | - | |
| Mar 1, 2023 | - | RPT | No | No | - | - | - | Resolved | Apr 25, 2023 | - | |
| Mar 1, 2023 | - | RPT | No | No | - | - | - | Resolved | Apr 25, 2023 | - | |
| Jan 1, 2021 | - | RPT | No | No | - | - | - | Resolved | Feb 20, 2021 | - | |
| Jan 1, 2021 | - | RPT | No | No | - | - | - | Resolved | Feb 20, 2021 | - | |
| Apr 1, 2017 | - | RPT | No | No | - | - | - | Resolved | May 24, 2017 | - | |
| Feb 1, 2013 | Feb 28, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 2013 | - | |
| Feb 1, 2013 | Feb 28, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 2013 | - | |
| Apr 1, 2012 | Apr 30, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2012 | - | |
| Apr 1, 2012 | Apr 30, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2012 | - | |
| Apr 1, 2007 | Apr 30, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2007 | - | |
| Jan 1, 2006 | Jan 31, 2006 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2006 | - | |
| Apr 1, 2004 | Apr 30, 2004 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2004 | - | |
| Nov 1, 1999 | Nov 30, 1999 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 1999 | - | |
| Jan 1, 1998 | Dec 31, 1998 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1998 | - |
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.