EPCOR - PARADISE VALLEY/SCOTTSDALE
Arizona — Community Water System — PWSID: AZ0407056
System Information
| PWSID | AZ0407056 |
| System Name | EPCOR - PARADISE VALLEY/SCOTTSDALE |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| 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 | EL MIRAGE |
| ZIP Code | 85335 |
| Address | — |
| Organization | DIDOMIZIO, TOM |
| Phone | 623-445-2431 |
Population & Service
| Population Served | 14,107 |
| Service Connections | 5,643 |
Drinking Water Violations (81)
This water system has 81 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 1, 2024 | Sep 30, 2024 | Surface Water Treatment Rule | MR | No | Yes | — | — | — | Resolved | Sep 30, 2024 | Surface Water Treatment Rule |
| Sep 1, 2024 | Sep 30, 2024 | Surface Water Treatment Rule | MR | No | Yes | — | — | — | Resolved | Sep 30, 2024 | Surface Water Treatment Rule |
| Apr 1, 2024 | Jun 30, 2024 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 2024 | Arsenic Rule |
| Apr 1, 2024 | Jun 30, 2024 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 2024 | Arsenic Rule |
| Feb 1, 2018 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Mar 19, 2018 | Revised Total Coliform Rule |
| Jan 1, 2013 | Mar 31, 2013 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2013 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2012 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 12, 2012 | Consumer Confidence Rule |
| Mar 1, 2012 | Mar 31, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2012 | Total Coliform Rule |
| Mar 1, 2012 | Mar 31, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2012 | Total Coliform Rule |
| Feb 1, 2011 | Feb 28, 2011 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2011 | Total Coliform Rule |
| Feb 1, 2011 | Feb 28, 2011 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2011 | Total Coliform Rule |
| Jan 1, 2011 | Dec 31, 2013 | 2,3,7,8-TCDD | MR | No | No | — | 0.00000003 mg/L | — | Resolved | Dec 31, 2013 | Synthetic Organic Chemicals |
| Jan 1, 2011 | Dec 31, 2013 | 2,3,7,8-TCDD | MR | No | No | — | 0.00000003 mg/L | — | Resolved | Dec 31, 2013 | Synthetic Organic Chemicals |
| Oct 1, 2009 | Dec 31, 2009 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2009 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2009 | Dec 31, 2009 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2009 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2009 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Nov 5, 2009 | Consumer Confidence Rule |
| Apr 1, 2008 | Jun 30, 2008 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 2008 | Arsenic Rule |
| Jan 1, 2008 | Mar 31, 2008 | Trichloroethylene | MCL | Yes | No | .023 MG/L | 0.005 mg/L | — | Resolved | Mar 31, 2008 | Volatile Organic Chemicals |
| Jan 1, 2008 | Mar 31, 2008 | Trichloroethylene | MCL | Yes | No | .023 MG/L | 0.005 mg/L | — | Resolved | Mar 31, 2008 | Volatile Organic Chemicals |
| Nov 1, 2007 | Nov 30, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2007 | Total Coliform Rule |
| Jul 1, 2007 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Dec 31, 2007 | Consumer Confidence Rule |
| Jul 1, 2007 | Jul 31, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2007 | Total Coliform Rule |
| Jan 1, 2007 | Mar 31, 2007 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Mar 31, 2007 | Nitrate Rule |
| Jan 1, 2007 | Dec 31, 2007 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2007 | Nitrate Rule |
| Jul 1, 2006 | Sep 30, 2006 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2006 | Nitrate Rule |
| Jul 1, 2005 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 5, 2005 | Consumer Confidence Rule |
| Jan 1, 2005 | Mar 31, 2005 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Mar 31, 2005 | Nitrate Rule |
| Oct 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Nov 13, 2008 | Lead and Copper Rule |
| Jul 1, 2004 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 24, 2004 | Consumer Confidence Rule |
| Jul 1, 2004 | Sep 30, 2004 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2004 | Nitrate Rule |
| Jul 1, 2003 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 24, 2004 | Consumer Confidence Rule |
| Apr 1, 2003 | Jun 30, 2003 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 2003 | Nitrate Rule |
| Jul 1, 2002 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 30, 2002 | Consumer Confidence Rule |
| Jan 1, 2002 | Dec 31, 2002 | HEXACHLOROBENZENE | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2002 | Synthetic Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2002 | Atrazine | MR | No | Yes | — | 0.003 mg/L | — | Resolved | Dec 31, 2002 | Synthetic Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2002 | Hexachlorocyclopentadiene | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Dec 31, 2002 | Synthetic Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2002 | LASSO | MR | No | Yes | — | — | — | Resolved | Dec 31, 2002 | Synthetic Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2004 | 2,3,7,8-TCDD | MR | No | Yes | — | 0.00000003 mg/L | — | Resolved | Dec 31, 2004 | Synthetic Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2002 | Di(2-ethylhexyl) phthalate | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Dec 31, 2002 | Synthetic Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2002 | Methoxychlor | MR | No | Yes | — | 0.04 mg/L | — | Resolved | Dec 31, 2002 | Synthetic Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2002 | Chlordane | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2002 | Synthetic Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2002 | Endrin | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2002 | Synthetic Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2004 | 2,3,7,8-TCDD | MR | No | Yes | — | 0.00000003 mg/L | — | Resolved | Dec 31, 2004 | Synthetic Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2004 | 2,3,7,8-TCDD | MR | No | Yes | — | 0.00000003 mg/L | — | Resolved | Dec 31, 2004 | Synthetic Organic Chemicals |
| Dec 1, 2001 | Dec 31, 2001 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2001 | Total Coliform Rule |
| Nov 1, 2001 | Nov 30, 2001 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 2001 | Total Coliform Rule |
| Nov 1, 2001 | Nov 30, 2001 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2001 | Total Coliform Rule |
| Aug 16, 2001 | Aug 17, 2001 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Aug 17, 2001 | Nitrate Rule |
| Apr 1, 2001 | Jun 30, 2001 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 2001 | Nitrate Rule |
| Apr 1, 2000 | Jun 30, 2000 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 2000 | Nitrate Rule |
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.