CORONADO ELEMENTARY
Arizona — Non-Transient Non-Community — PWSID: AZ0402102
System Information
| PWSID | AZ0402102 |
| System Name | CORONADO ELEMENTARY |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 09 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Dec 12, 1991 |
| Last Reported | Mar 12, 2026 |
Location & Contact
| State | Arizona |
| City | HEREFORD |
| ZIP Code | 85615 |
| Address | ATTN: SHERRI ROSALIK |
| Organization | PALOMINAS SCHOOL DIST CORONADO ELEM |
| Phone | 928-925-4860 |
Population & Service
| Population Served | 446 |
| Service Connections | 2 |
Drinking Water Violations (99)
This water system has 99 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2019 | Jul 31, 2019 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jul 31, 2019 | — | |
| Jul 1, 2019 | Jul 31, 2019 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jul 31, 2019 | — | |
| Jul 1, 2019 | Jul 31, 2019 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jul 31, 2019 | — | |
| Jul 1, 2019 | Jul 31, 2019 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jul 31, 2019 | — | |
| Apr 1, 2015 | Apr 30, 2015 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2015 | — | |
| Apr 1, 2015 | Apr 30, 2015 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2015 | — | |
| Sep 1, 2013 | Sep 30, 2013 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2013 | — | |
| Sep 1, 2013 | Sep 30, 2013 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2013 | — | |
| Jan 1, 2013 | Jan 31, 2013 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2013 | — | |
| Jan 1, 2013 | Jan 31, 2013 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2013 | — | |
| Dec 1, 2010 | Dec 31, 2010 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2010 | — | |
| Dec 1, 2010 | Dec 31, 2010 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2010 | — | |
| Feb 1, 2004 | Feb 29, 2004 | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 29, 2004 | — | |
| Feb 1, 2004 | Feb 29, 2004 | MR | No | No | — | 5% of samples | — | Resolved | Feb 29, 2004 | — | |
| Oct 1, 2003 | Oct 31, 2003 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2003 | — | |
| Feb 1, 2003 | Feb 28, 2003 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2003 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Dec 31, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Dec 31, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 2002 | — | |
| Aug 1, 2001 | Aug 31, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2001 | — | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2000 | — | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | — | 0.00005 mg/L | — | Resolved | Dec 31, 2000 | — | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2000 | — | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Dec 31, 2000 | — | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | — | 2 mg/L | — | Resolved | Dec 31, 2000 | — | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | — | 0.0004 mg/L | — | Resolved | Dec 31, 2000 | — | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2000 | — | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | — | 0.00000003 mg/L | — | Resolved | Dec 31, 2000 | — | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2000 | — | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | — | 0.5 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 | — | 0.005 mg/L | — | Resolved | Dec 31, 2000 | — | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2000 | — | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Dec 31, 2000 | — | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2000 | — | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2000 | — | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2000 | — | |
| Jan 1, 1998 | Dec 31, 2000 | MR | No | Yes | — | 0.004 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.