CHAPARRAL WATER COMPANY
Arizona - Community Water System - PWSID: AZ0407064
System Information
| PWSID | AZ0407064 |
| System Name | CHAPARRAL WATER COMPANY |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Mixed |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Oct 5, 1979 |
| Last Reported | Mar 12, 2026 |
Location & Contact
| State | Arizona |
| City | TUCSON |
| ZIP Code | 85754 |
| Address | PO BOX 85160 |
| Organization | SOUTHWESTERN UTILITY MGMT INC |
| Phone | 520-623-5172 |
Population & Service
| Population Served | 963 |
| Service Connections | 358 |
Drinking Water Violations (268)
This water system has 268 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb 1, 2021 | - | RPT | No | No | - | - | - | Resolved | Mar 15, 2021 | - | |
| Feb 1, 2021 | - | RPT | No | No | - | - | - | Resolved | Mar 15, 2021 | - | |
| Jan 1, 2020 | - | RPT | No | No | - | - | - | Resolved | Feb 26, 2020 | - | |
| Jan 1, 2020 | - | RPT | No | No | - | - | - | Resolved | Feb 26, 2020 | - | |
| Sep 1, 2019 | - | RPT | No | No | - | - | - | Resolved | Oct 23, 2019 | - | |
| Sep 1, 2019 | - | RPT | No | No | - | - | - | Resolved | Oct 23, 2019 | - | |
| Aug 1, 2018 | - | RPT | No | No | - | - | - | Resolved | Sep 18, 2018 | - | |
| Jul 1, 2018 | Sep 30, 2018 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2018 | - | |
| Jul 1, 2018 | Sep 30, 2018 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2018 | - | |
| Oct 1, 2013 | Dec 31, 2013 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2013 | - | |
| Aug 1, 2013 | Aug 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2013 | - | |
| Aug 1, 2013 | Aug 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2013 | - | |
| Oct 1, 2012 | - | Other | No | No | - | - | - | Resolved | Feb 22, 2013 | - | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2012 | - | |
| Oct 1, 2011 | - | Other | No | No | - | - | - | Resolved | Feb 22, 2013 | - | |
| 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 | - | |
| Oct 1, 2010 | - | Other | No | No | - | - | - | Resolved | Feb 22, 2013 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Jul 1, 2008 | - | Other | No | No | - | - | - | Resolved | Jun 25, 2009 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jul 1, 2007 | Sep 30, 2007 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2007 | - | |
| Jul 1, 2007 | Sep 30, 2007 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2007 | - | |
| Jul 1, 2007 | - | Other | No | No | - | - | - | Resolved | Jul 11, 2007 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Apr 1, 2007 | Apr 30, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Mar 31, 2007 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Mar 31, 2007 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2007 | - | |
| Oct 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2006 | - | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2006 | - | |
| 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 | - | |
| Jul 1, 2005 | - | Other | No | No | - | - | - | Resolved | Jul 20, 2005 | - | |
| Jan 1, 2005 | Dec 31, 2005 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2005 | Dec 31, 2005 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2005 | - | |
| Jul 1, 2004 | - | Other | No | No | - | - | - | Resolved | Jul 20, 2005 | - | |
| Oct 1, 2003 | Dec 31, 2003 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Dec 31, 2003 | - | |
| Oct 1, 2003 | Dec 31, 2003 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2003 | - | |
| Jul 1, 2003 | Sep 30, 2003 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Sep 30, 2003 | - | |
| Jul 1, 2003 | Sep 30, 2003 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Sep 30, 2003 | - | |
| Jul 1, 2002 | - | Other | No | No | - | - | - | Resolved | Jul 2, 2003 | - | |
| 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 | - | 0.007 mg/L | - | Resolved | Dec 31, 2000 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 2000 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Dec 31, 2000 | - | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2000 | - |
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.