ARIZONA PROVING GROUND
Arizona - Non-Transient Non-Community - PWSID: AZ0407763
System Information
| PWSID | AZ0407763 |
| System Name | ARIZONA PROVING GROUND |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Dec 1, 2004 |
| Last Reported | Mar 12, 2026 |
Location & Contact
| State | Arizona |
| City | WITTMANN |
| ZIP Code | 85361 |
| Address | ATTN: JOHN MEYERS |
| Organization | FORD MOTOR COMPANY |
| Phone | 623-975-6400 |
Population & Service
| Population Served | 75 |
| Service Connections | 1 |
Drinking Water Violations (126)
This water system has 126 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| May 1, 2025 | - | RPT | No | No | - | - | - | Resolved | Jun 18, 2025 | - | |
| May 1, 2025 | - | RPT | No | No | - | - | - | Resolved | Jun 18, 2025 | - | |
| Dec 20, 2024 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Dec 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2024 | - | |
| Dec 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2024 | - | |
| Nov 1, 2024 | Nov 30, 2024 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Nov 30, 2024 | - | |
| Nov 1, 2024 | Nov 30, 2024 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Nov 30, 2024 | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Resolved | Dec 12, 2024 | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Resolved | Dec 12, 2024 | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Resolved | Dec 12, 2024 | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Resolved | Dec 12, 2024 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Oct 31, 2024 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Oct 31, 2024 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Oct 27, 2025 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Oct 27, 2025 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Oct 27, 2025 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Oct 27, 2025 | - | |
| Apr 1, 2024 | Apr 30, 2024 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Apr 30, 2024 | - | |
| Apr 1, 2024 | Apr 30, 2024 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Apr 30, 2024 | - | |
| Jan 1, 2024 | Jan 31, 2024 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jan 31, 2024 | - | |
| Jan 1, 2024 | Jan 31, 2024 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jan 31, 2024 | - | |
| Jul 1, 2023 | Jul 31, 2023 | MON | No | Yes | - | - | - | Resolved | Jul 31, 2023 | - | |
| Jul 1, 2023 | Jul 31, 2023 | MON | No | Yes | - | - | - | Resolved | Jul 31, 2023 | - | |
| Nov 24, 2022 | - | Other | No | No | - | - | - | Resolved | Feb 8, 2023 | - | |
| Nov 24, 2022 | - | Other | No | No | - | - | - | Resolved | Feb 8, 2023 | - | |
| Jun 1, 2022 | - | RPT | No | No | - | - | - | Resolved | Jul 25, 2022 | - | |
| Jun 1, 2022 | - | RPT | No | No | - | - | - | Resolved | Jul 25, 2022 | - | |
| Oct 29, 2021 | - | MR | No | No | - | TT | - | Resolved | Dec 30, 2021 | - | |
| Oct 29, 2021 | - | MR | No | No | - | TT | - | Resolved | Dec 30, 2021 | - | |
| Oct 1, 2021 | Dec 31, 2021 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2021 | - | |
| Oct 1, 2021 | Dec 31, 2021 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2021 | - | |
| Sep 1, 2020 | Aug 31, 2021 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2021 | - | |
| Sep 1, 2020 | Aug 31, 2021 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 31, 2021 | - | |
| Sep 1, 2020 | Aug 31, 2021 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 31, 2021 | - | |
| Sep 1, 2020 | Aug 31, 2021 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 31, 2021 | - | |
| Sep 1, 2020 | Aug 31, 2021 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2021 | - | |
| Sep 1, 2020 | Aug 31, 2021 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2021 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2019 | - | |
| Jul 1, 2019 | Sep 30, 2019 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2019 | - | |
| Jul 1, 2019 | - | RPT | No | No | - | - | - | Resolved | Sep 10, 2019 | - | |
| Jul 1, 2019 | - | RPT | No | No | - | - | - | Resolved | Sep 10, 2019 | - | |
| Jan 1, 2019 | - | MR | No | No | - | TT | - | Resolved | May 2, 2019 | - | |
| Jan 1, 2019 | - | MR | No | No | - | TT | - | Resolved | May 2, 2019 | - | |
| Jul 1, 2018 | Jul 31, 2018 | MON | No | Yes | - | - | - | Resolved | Jul 31, 2018 | - | |
| Jul 1, 2018 | Jul 31, 2018 | MON | No | Yes | - | - | - | Resolved | Jul 31, 2018 | - | |
| Dec 1, 2017 | - | RPT | No | No | - | - | - | Resolved | Jan 19, 2018 | - | |
| Oct 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Sep 1, 2016 | Sep 30, 2016 | MON | No | Yes | - | - | - | Resolved | Sep 30, 2016 | - | |
| Jul 1, 2016 | Sep 30, 2016 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2016 | - | |
| Apr 1, 2016 | Jun 30, 2016 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2016 | - |
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.