CASITAS DE CASTILIAN
Arizona - Community Water System - PWSID: AZ0420531
System Information
| PWSID | AZ0420531 |
| System Name | CASITAS DE CASTILIAN |
| 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 | Oct 5, 1979 |
| Last Reported | Mar 12, 2026 |
Location & Contact
| State | Arizona |
| City | TUCSON |
| ZIP Code | 85704 |
| Address | 6840 N ORACLE RD. |
| Organization | ASSOCIA ARIZONA |
| Phone | 520-742-5674 |
Population & Service
| Population Served | 167 |
| Service Connections | 120 |
Drinking Water Violations (132)
This water system has 132 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 | Dec 31, 2025 | MR | No | Yes | - | 0.006 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jul 2, 2025 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Jul 1, 2025 | Sep 30, 2025 | MR | No | Yes | - | 0.006 mg/L | - | Archived | Sep 30, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MR | No | Yes | - | 0.006 mg/L | - | Archived | Sep 30, 2025 | - | |
| Dec 17, 2024 | - | RPT | No | No | - | - | - | Resolved | Dec 16, 2024 | - | |
| Dec 17, 2024 | - | RPT | No | No | - | - | - | Resolved | Dec 16, 2024 | - | |
| Nov 29, 2024 | - | MR | No | Yes | - | - | - | Resolved | Jan 9, 2025 | - | |
| Nov 29, 2024 | - | MR | No | Yes | - | - | - | Resolved | Jan 9, 2025 | - | |
| Nov 29, 2024 | - | MR | No | Yes | - | - | - | Resolved | Jan 9, 2025 | - | |
| Nov 29, 2024 | - | MR | No | Yes | - | - | - | Resolved | Jan 9, 2025 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Oct 10, 2024 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Oct 10, 2024 | - | |
| Jul 1, 2023 | Jul 31, 2023 | MCL | Yes | No | - | - | - | Resolved | Jul 25, 2023 | - | |
| Jul 1, 2023 | Jul 31, 2023 | MCL | Yes | No | - | - | - | Resolved | Jul 25, 2023 | - | |
| Jul 1, 2023 | Jul 31, 2023 | MCL | Yes | No | - | - | - | Resolved | Jul 25, 2023 | - | |
| Jul 1, 2023 | Jul 31, 2023 | MCL | Yes | No | - | - | - | Resolved | Jul 25, 2023 | - | |
| Jul 1, 2023 | Jul 31, 2023 | MCL | Yes | No | - | - | - | Resolved | Jul 25, 2023 | - | |
| Jul 1, 2022 | - | Other | No | No | - | - | - | Resolved | Jul 11, 2022 | - | |
| Jul 1, 2022 | - | Other | No | No | - | - | - | Resolved | Jul 11, 2022 | - | |
| Mar 1, 2022 | - | RPT | No | No | - | - | - | Resolved | Apr 27, 2022 | - | |
| Feb 5, 2022 | - | MR | No | Yes | - | - | - | Resolved | Apr 27, 2022 | - | |
| Feb 5, 2022 | - | MR | No | Yes | - | - | - | Resolved | Apr 27, 2022 | - | |
| Oct 1, 2021 | - | MR | No | No | - | TT | - | Resolved | Oct 27, 2022 | - | |
| Oct 1, 2021 | - | MR | No | No | - | TT | - | Resolved | Oct 27, 2022 | - | |
| Oct 1, 2021 | - | MR | No | No | - | TT | - | Resolved | Oct 27, 2022 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Sep 1, 2021 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Sep 1, 2021 | - | |
| Jun 6, 2020 | - | Other | No | No | - | - | - | Resolved | Jun 10, 2020 | - | |
| May 7, 2020 | - | Other | No | No | - | - | - | Resolved | Jun 5, 2020 | - | |
| May 7, 2020 | - | Other | No | No | - | - | - | Resolved | Jun 5, 2020 | - | |
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | Aug 1, 2018 | - | |
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | Aug 1, 2018 | - | |
| Jul 1, 2017 | - | Other | No | No | - | - | - | Resolved | Sep 14, 2017 | - | |
| Jan 1, 2013 | Jan 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2013 | - | |
| Jan 1, 2013 | Jan 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2013 | - | |
| Jul 1, 2010 | - | Other | No | No | - | - | - | Resolved | Mar 14, 2011 | - | |
| Jul 1, 2007 | - | Other | No | No | - | - | - | Resolved | Jul 18, 2007 | - | |
| Nov 1, 2006 | Nov 30, 2006 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2006 | - | |
| Jul 1, 2005 | - | Other | No | No | - | - | - | Resolved | Jul 14, 2005 | - | |
| Oct 1, 2002 | - | MR | No | No | - | TT | - | Resolved | Aug 31, 2006 | - | |
| Jul 1, 2002 | - | Other | No | No | - | - | - | Resolved | Mar 31, 2003 | - | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | - | 0.007 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | - | 0.7 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 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.