TOYOTA PROVING GROUNDS/TECH CENTER
Arizona - Non-Transient Non-Community - PWSID: AZ0407200
System Information
| PWSID | AZ0407200 |
| System Name | TOYOTA PROVING GROUNDS/TECH CENTER |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Mixed |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jul 9, 1993 |
| Last Reported | Mar 12, 2026 |
Location & Contact
| State | Arizona |
| City | WITTMANN |
| ZIP Code | 85361 |
| Address | ATT Jim Rollison |
| Organization | TOYOTA TECHNICAL CENTER |
| Phone | 480-297-7940 |
Population & Service
| Population Served | 50 |
| Service Connections | 1 |
Drinking Water Violations (67)
This water system has 67 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 17, 2024 | - | TT | Yes | No | - | - | - | Resolved | Dec 3, 2024 | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Resolved | Dec 3, 2024 | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Resolved | Dec 3, 2024 | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Resolved | Dec 3, 2024 | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Resolved | Dec 3, 2024 | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Resolved | Dec 3, 2024 | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Resolved | Dec 3, 2024 | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Resolved | Dec 3, 2024 | - | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Mar 31, 2019 | - | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Mar 31, 2019 | - | |
| Jul 1, 2013 | Sep 30, 2013 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2013 | - | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2012 | - | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2011 | - | |
| Jan 1, 2011 | Mar 31, 2011 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2011 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Jan 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Oct 1, 2002 | Oct 31, 2002 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2002 | - | |
| Jan 1, 2001 | Dec 31, 2001 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2001 | - | |
| Sep 1, 2000 | Sep 30, 2000 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2000 | - | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1999 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.7 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.0004 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.007 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.04 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 1 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.04 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Oct 27, 1998 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Oct 27, 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.