SCUA Upper Peridot
Arizona - Community Water System - PWSID: 090400242
System Information
| PWSID | 090400242 |
| System Name | SCUA Upper Peridot |
| 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 | Mar 25, 2026 |
Location & Contact
| State | Arizona |
| City | San Carlos |
| ZIP Code | 85550 |
| Address | P.O. Box O |
| Organization | San Carlos Apache Tribe |
| Phone | 9284752631 |
Population & Service
| Population Served | 275 |
| Service Connections | 106 |
Drinking Water Violations (408)
This water system has 408 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Nov 28, 2025 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Nov 28, 2025 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Nov 28, 2025 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Oct 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.010 mg/L | - | Archived | Dec 31, 2025 | - | |
| Nov 16, 2024 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Nov 16, 2024 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Jan 19, 2024 | - | TT | Yes | No | - | - | - | Resolved | Jul 13, 2025 | - | |
| Jan 19, 2024 | - | TT | Yes | No | - | - | - | Resolved | Sep 25, 2025 | - | |
| Jan 19, 2024 | - | Other | No | No | - | - | - | Resolved | Jun 10, 2025 | - | |
| Jan 19, 2024 | - | Other | No | No | - | - | - | Resolved | Jun 10, 2025 | - | |
| Feb 1, 2023 | - | RPT | No | No | - | - | - | Resolved | May 24, 2023 | - | |
| Feb 1, 2023 | - | RPT | No | No | - | - | - | Resolved | May 24, 2023 | - | |
| Aug 1, 2022 | - | RPT | No | No | - | - | - | Resolved | Oct 7, 2011 | - | |
| Jul 1, 2022 | - | Other | No | No | - | - | - | Resolved | Dec 13, 2022 | - | |
| Jan 1, 2022 | Dec 31, 2022 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2022 | - | |
| Jan 1, 2022 | Dec 31, 2022 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2022 | - | |
| Nov 1, 2019 | - | MR | No | Yes | - | - | - | Resolved | Apr 1, 2020 | - | |
| Nov 1, 2019 | - | MR | No | Yes | - | - | - | Resolved | Apr 1, 2020 | - | |
| Mar 1, 2019 | - | RPT | No | No | - | - | - | Resolved | Jun 6, 2019 | - | |
| Feb 1, 2019 | - | RPT | No | No | - | - | - | Resolved | Jun 6, 2019 | - | |
| Jan 1, 2019 | - | RPT | No | No | - | - | - | Resolved | Jun 6, 2019 | - | |
| Dec 1, 2018 | - | RPT | No | No | - | - | - | Resolved | Apr 20, 2019 | - | |
| Dec 1, 2018 | - | RPT | No | No | - | - | - | Resolved | Apr 20, 2019 | - | |
| Nov 1, 2018 | - | RPT | No | No | - | - | - | Resolved | Apr 20, 2019 | - | |
| Oct 1, 2018 | - | RPT | No | No | - | - | - | Resolved | Apr 20, 2019 | - | |
| Sep 1, 2018 | - | MR | No | Yes | - | - | - | Resolved | Apr 11, 2019 | - | |
| Sep 1, 2018 | - | MR | No | Yes | - | - | - | Resolved | Apr 11, 2019 | - | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2018 | - | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2018 | - | |
| Mar 1, 2016 | Mar 31, 2016 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 2016 | - | |
| Dec 1, 2015 | Dec 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2015 | - | |
| Nov 1, 2015 | Nov 30, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2015 | - | |
| Oct 1, 2015 | Oct 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2015 | - | |
| Jul 1, 2015 | - | Other | No | No | - | - | - | Resolved | Jul 30, 2016 | - | |
| Jul 1, 2015 | - | Other | No | No | - | - | - | Resolved | Jul 30, 2016 | - | |
| Jun 1, 2015 | Jun 30, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2015 | - | |
| Jun 1, 2015 | Jun 30, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2015 | - | |
| May 1, 2015 | May 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2015 | - | |
| May 1, 2015 | May 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2015 | - | |
| Apr 1, 2015 | Apr 30, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2015 | - | |
| Apr 1, 2015 | Apr 30, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2015 | - | |
| Mar 1, 2015 | Mar 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 2015 | - | |
| Mar 1, 2015 | Mar 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 2015 | - | |
| Sep 1, 2014 | Sep 30, 2014 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2014 | - | |
| Aug 1, 2014 | Aug 31, 2014 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2014 | - | |
| Jul 1, 2014 | Jul 31, 2014 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 2014 | - | |
| Sep 1, 2013 | Sep 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2013 | - | |
| Jun 1, 2013 | Jun 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2013 | - | |
| Jun 1, 2013 | Jun 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2013 | - | |
| May 1, 2013 | May 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2013 | - |
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.