PALO VERDE NUCLEAR GENERATING STATION
Arizona — Non-Transient Non-Community — PWSID: AZ0407412
System Information
| PWSID | AZ0407412 |
| System Name | PALO VERDE NUCLEAR GENERATING STATION |
| 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 | Oct 5, 1979 |
| Last Reported | Mar 12, 2026 |
Location & Contact
| State | Arizona |
| City | TONOPAH |
| ZIP Code | 85354-7529 |
| Address | — |
| Organization | COX, MATTHEW |
| Phone | 623-393-5753 |
Population & Service
| Population Served | 3,000 |
| Service Connections | 55 |
Drinking Water Violations (41)
This water system has 41 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 | Dec 31, 2025 | MON | No | No | — | — | — | Archived | Dec 31, 2025 | — | |
| Jan 1, 2021 | Mar 31, 2021 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Mar 31, 2021 | — | |
| Jan 1, 2021 | Mar 31, 2021 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Mar 31, 2021 | — | |
| May 1, 2009 | May 31, 2009 | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2009 | — | |
| May 1, 2009 | May 31, 2009 | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2009 | — | |
| Apr 1, 2007 | Apr 30, 2007 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2007 | — | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2006 | — | |
| Jul 1, 2004 | — | MR | No | No | — | TT | — | Resolved | Dec 6, 2006 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | 0.00000003 mg/L | — | Resolved | Dec 31, 2002 | — | |
| Apr 1, 2000 | Apr 30, 2000 | MCL | Yes | No | — | 5% of samples | — | Resolved | Apr 30, 2000 | — | |
| Jan 1, 2000 | Dec 31, 2000 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2000 | — | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1999 | — | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | — | 0.02 mg/L | — | Resolved | Dec 31, 1999 | — | |
| Jan 31, 1990 | Jan 30, 1993 | MR | No | Yes | — | 0.002 mg/L | — | Archived | Jan 30, 1993 | — | |
| Jan 31, 1990 | Jan 30, 1993 | MR | No | Yes | — | 2 mg/L | — | Archived | Jan 30, 1993 | — | |
| Jan 31, 1990 | Jan 30, 1993 | MR | No | Yes | — | 4.0 mg/L | — | Archived | Jan 30, 1993 | — | |
| Jan 31, 1990 | Jan 30, 1993 | MR | No | Yes | — | 0.1 mg/L | — | Archived | Jan 30, 1993 | — | |
| Jan 31, 1990 | Jan 30, 1993 | MR | No | Yes | — | 0.010 mg/L | — | Archived | Jan 30, 1993 | — | |
| Jan 31, 1990 | Jan 30, 1993 | MR | No | Yes | — | 0.05 mg/L | — | Archived | Jan 30, 1993 | — | |
| Jan 31, 1990 | Jan 30, 1993 | MR | No | Yes | — | 10 mg/L | — | Archived | Jan 30, 1993 | — | |
| Jan 31, 1990 | Jan 30, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jan 30, 1993 | — | |
| Jan 1, 1987 | Jul 1, 1990 | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jul 1, 1990 | — | |
| Jan 1, 1987 | Jul 1, 1990 | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jul 1, 1990 | — | |
| Jan 1, 1987 | Jul 1, 1990 | MR | No | Yes | — | 0.6 mg/L | — | Archived | Jul 1, 1990 | — | |
| Jan 1, 1987 | Jul 1, 1990 | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jul 1, 1990 | — | |
| Jan 1, 1987 | Jul 1, 1990 | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jul 1, 1990 | — | |
| Jan 1, 1987 | Jul 1, 1990 | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jul 1, 1990 | — | |
| Jan 1, 1987 | Jul 1, 1990 | MR | No | Yes | — | 0.007 mg/L | — | Archived | Jul 1, 1990 | — | |
| Jan 1, 1987 | Jul 1, 1990 | MR | No | Yes | — | 0.075 mg/L | — | Archived | Jul 1, 1990 | — | |
| Jan 1, 1987 | Jul 1, 1990 | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jul 1, 1990 | — | |
| Jan 1, 1987 | Jul 1, 1990 | MR | No | Yes | — | 0.07 mg/L | — | Archived | Jul 1, 1990 | — | |
| Jan 1, 1987 | Jul 1, 1990 | MR | No | Yes | — | 0.1 mg/L | — | Archived | Jul 1, 1990 | — | |
| Jan 1, 1987 | Jul 1, 1990 | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jul 1, 1990 | — | |
| Jan 1, 1987 | Jul 1, 1990 | MR | No | Yes | — | 0.1 mg/L | — | Archived | Jul 1, 1990 | — | |
| Jan 1, 1987 | Jul 1, 1990 | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jul 1, 1990 | — | |
| Jan 1, 1987 | Jul 1, 1990 | MR | No | Yes | — | 0.2 mg/L | — | Archived | Jul 1, 1990 | — | |
| Jan 1, 1987 | Jul 1, 1990 | MR | No | Yes | — | 0.7 mg/L | — | Archived | Jul 1, 1990 | — | |
| Jan 1, 1987 | Jul 1, 1990 | MR | No | Yes | — | 1 mg/L | — | Archived | Jul 1, 1990 | — | |
| Jan 1, 1987 | Jul 1, 1990 | MR | No | Yes | — | 0.1 mg/L | — | Archived | Jul 1, 1990 | — | |
| Oct 9, 1980 | Dec 8, 1980 | MCL | Yes | No | 7.9 | 4.0 mg/L | 2 | Archived | Dec 8, 1980 | — | |
| — | — | — | No | No | — | — | — | — | — | — |
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.