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 | Nov 17, 2025 |
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 (36)
This water system has 36 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2021 | Mar 31, 2021 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Mar 31, 2021 | Arsenic Rule |
| Jan 1, 2021 | Mar 31, 2021 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Mar 31, 2021 | Arsenic Rule |
| May 1, 2009 | May 31, 2009 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2009 | Total Coliform Rule |
| May 1, 2009 | May 31, 2009 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2009 | Total Coliform Rule |
| Apr 1, 2007 | Apr 30, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2007 | Total Coliform Rule |
| Jul 1, 2006 | Sep 30, 2006 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2006 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 6, 2006 | Lead and Copper Rule |
| Jan 1, 2002 | Dec 31, 2002 | 2,3,7,8-TCDD | MR | No | Yes | — | 0.00000003 mg/L | — | Resolved | Dec 31, 2002 | Synthetic Organic Chemicals |
| Jan 1, 1999 | Dec 31, 1999 | Endothall | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1999 | Synthetic Organic Chemicals |
| Jan 31, 1990 | Jan 30, 1993 | Chromium | MR | No | Yes | — | 0.1 mg/L | — | Archived | Jan 30, 1993 | Inorganic Chemicals |
| Jan 31, 1990 | Jan 30, 1993 | Selenium | MR | No | Yes | — | 0.05 mg/L | — | Archived | Jan 30, 1993 | Inorganic Chemicals |
| Jan 31, 1990 | Jan 30, 1993 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Archived | Jan 30, 1993 | Arsenic Rule |
| Jan 31, 1990 | Jan 30, 1993 | Cadmium | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jan 30, 1993 | Inorganic Chemicals |
| Jan 31, 1990 | Jan 30, 1993 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Archived | Jan 30, 1993 | Nitrate Rule |
| Jan 31, 1990 | Jan 30, 1993 | Mercury | MR | No | Yes | — | 0.002 mg/L | — | Archived | Jan 30, 1993 | Inorganic Chemicals |
| Jan 31, 1990 | Jan 30, 1993 | Barium | MR | No | Yes | — | 2 mg/L | — | Archived | Jan 30, 1993 | Inorganic Chemicals |
| Jan 31, 1990 | Jan 30, 1993 | Fluoride | MR | No | Yes | — | 4.0 mg/L | — | Archived | Jan 30, 1993 | Inorganic Chemicals |
| Jan 1, 1987 | Jul 1, 1990 | Carbon tetrachloride | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jul 1, 1990 | Volatile Organic Chemicals |
| Jan 1, 1987 | Jul 1, 1990 | 1,2-Dichloropropane | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jul 1, 1990 | Volatile Organic Chemicals |
| Jan 1, 1987 | Jul 1, 1990 | p-Dichlorobenzene | MR | No | Yes | — | 0.075 mg/L | — | Archived | Jul 1, 1990 | Volatile Organic Chemicals |
| Jan 1, 1987 | Jul 1, 1990 | 1,2-Dichloroethane | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jul 1, 1990 | Volatile Organic Chemicals |
| Jan 1, 1987 | Jul 1, 1990 | 1,1,2-Trichloroethane | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jul 1, 1990 | Volatile Organic Chemicals |
| Jan 1, 1987 | Jul 1, 1990 | Trichloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jul 1, 1990 | Volatile Organic Chemicals |
| Jan 1, 1987 | Jul 1, 1990 | 1,1-Dichloroethylene | MR | No | Yes | — | 0.007 mg/L | — | Archived | Jul 1, 1990 | Volatile Organic Chemicals |
| Jan 1, 1987 | Jul 1, 1990 | Toluene | MR | No | Yes | — | 1 mg/L | — | Archived | Jul 1, 1990 | Volatile Organic Chemicals |
| Jan 1, 1987 | Jul 1, 1990 | CHLOROBENZENE | MR | No | Yes | — | 0.1 mg/L | — | Archived | Jul 1, 1990 | Volatile Organic Chemicals |
| Jan 1, 1987 | Jul 1, 1990 | Ethylbenzene | MR | No | Yes | — | 0.7 mg/L | — | Archived | Jul 1, 1990 | Volatile Organic Chemicals |
| Jan 1, 1987 | Jul 1, 1990 | 1,1,1-Trichloroethane | MR | No | Yes | — | 0.2 mg/L | — | Archived | Jul 1, 1990 | Volatile Organic Chemicals |
| Jan 1, 1987 | Jul 1, 1990 | trans-1,2-Dichloroethylene | MR | No | Yes | — | 0.1 mg/L | — | Archived | Jul 1, 1990 | Volatile Organic Chemicals |
| Jan 1, 1987 | Jul 1, 1990 | Styrene | MR | No | Yes | — | 0.1 mg/L | — | Archived | Jul 1, 1990 | Volatile Organic Chemicals |
| Jan 1, 1987 | Jul 1, 1990 | cis-1,2-Dichloroethylene | MR | No | Yes | — | 0.07 mg/L | — | Archived | Jul 1, 1990 | Volatile Organic Chemicals |
| Jan 1, 1987 | Jul 1, 1990 | Tetrachloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jul 1, 1990 | Volatile Organic Chemicals |
| Jan 1, 1987 | Jul 1, 1990 | DICHLOROMETHANE | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jul 1, 1990 | Volatile Organic Chemicals |
| Jan 1, 1987 | Jul 1, 1990 | o-Dichlorobenzene | MR | No | Yes | — | 0.6 mg/L | — | Archived | Jul 1, 1990 | Volatile Organic Chemicals |
| Jan 1, 1987 | Jul 1, 1990 | Benzene | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jul 1, 1990 | Volatile Organic Chemicals |
| — | — | — | 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.