SCUA Gilson Wash
Arizona — Community Water System — PWSID: 090400236
System Information
| PWSID | 090400236 |
| System Name | SCUA Gilson Wash |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Inactive |
| Owner Type | Native American |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 2, 1984 |
| Last Reported | Dec 31, 2025 |
Location & Contact
| State | Arizona |
| City | San Carlos |
| ZIP Code | 85550 |
| Address | P.O. Box 1330 |
| Organization | Water Distribution & WW Treatment Facilities Progr |
| Phone | 9284752307 |
Population & Service
| Population Served | 3,200 |
| Service Connections | 430 |
Drinking Water Violations (381)
This water system has 381 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2012 | Oct 31, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2012 | Total Coliform Rule |
| Oct 1, 2012 | Oct 31, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2012 | Total Coliform Rule |
| Sep 1, 2012 | Sep 30, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2012 | Total Coliform Rule |
| Sep 1, 2012 | Sep 30, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2012 | Total Coliform Rule |
| Aug 1, 2012 | Aug 31, 2012 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2012 | Total Coliform Rule |
| Aug 1, 2012 | Aug 31, 2012 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2012 | Total Coliform Rule |
| Jul 1, 2012 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jan 3, 2013 | Consumer Confidence Rule |
| Jul 1, 2012 | Jul 31, 2012 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2012 | Total Coliform Rule |
| Jul 1, 2012 | Jul 31, 2012 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2012 | Total Coliform Rule |
| Jul 1, 2012 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jan 3, 2013 | Consumer Confidence Rule |
| Jun 1, 2012 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jan 3, 2013 | Public Notice Rule and Revised PN Rule |
| Jun 1, 2012 | Jun 30, 2012 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 2012 | Total Coliform Rule |
| Jun 1, 2012 | Jun 30, 2012 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 2012 | Total Coliform Rule |
| Jun 1, 2012 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jan 3, 2013 | Public Notice Rule and Revised PN Rule |
| Apr 1, 2012 | Apr 30, 2012 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Apr 30, 2012 | Total Coliform Rule |
| Apr 1, 2012 | Apr 30, 2012 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Apr 30, 2012 | Total Coliform Rule |
| Sep 1, 2011 | Sep 30, 2011 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2011 | Total Coliform Rule |
| Sep 1, 2011 | Sep 30, 2011 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2011 | Total Coliform Rule |
| Mar 1, 2011 | Mar 31, 2011 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 1, 2002 | Total Coliform Rule |
| Feb 1, 2011 | Feb 28, 2011 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 1, 2002 | Total Coliform Rule |
| Jan 1, 2011 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 6, 2012 | Lead and Copper Rule |
| Jan 1, 2011 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 6, 2012 | Lead and Copper Rule |
| Jan 1, 2011 | Jan 31, 2011 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 1, 2002 | Total Coliform Rule |
| Dec 1, 2010 | Dec 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2010 | Total Coliform Rule |
| Nov 1, 2010 | Nov 30, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2010 | Total Coliform Rule |
| Oct 1, 2010 | Oct 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2010 | Total Coliform Rule |
| Sep 1, 2010 | Sep 30, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2010 | Total Coliform Rule |
| Aug 1, 2010 | Aug 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2010 | Total Coliform Rule |
| Jul 1, 2010 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 6, 2012 | Lead and Copper Rule |
| Jul 1, 2010 | Jul 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2010 | Total Coliform Rule |
| Jul 1, 2010 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 6, 2012 | Lead and Copper Rule |
| Jul 1, 2010 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 6, 2012 | Consumer Confidence Rule |
| Jul 1, 2010 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 6, 2012 | Consumer Confidence Rule |
| Jun 1, 2010 | Jun 30, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2010 | Total Coliform Rule |
| May 1, 2010 | May 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2010 | Total Coliform Rule |
| Apr 1, 2010 | Apr 30, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2010 | Total Coliform Rule |
| Mar 1, 2010 | Mar 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2010 | Total Coliform Rule |
| Feb 1, 2010 | Feb 28, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2010 | Total Coliform Rule |
| Jan 1, 2010 | Jan 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2010 | Total Coliform Rule |
| Jan 1, 2010 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 6, 2012 | Lead and Copper Rule |
| Jan 1, 2010 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 6, 2012 | Lead and Copper Rule |
| Dec 1, 2009 | Dec 31, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2009 | Total Coliform Rule |
| Nov 1, 2009 | Nov 30, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2009 | Total Coliform Rule |
| Oct 1, 2009 | Oct 31, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2009 | Total Coliform Rule |
| Sep 1, 2009 | Sep 30, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2009 | Total Coliform Rule |
| Aug 1, 2009 | Aug 31, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2009 | Total Coliform Rule |
| Jul 1, 2009 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 6, 2012 | Consumer Confidence Rule |
| Jul 1, 2009 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Nov 29, 2011 | Lead and Copper Rule |
| Jul 1, 2009 | Jul 31, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2009 | Total Coliform Rule |
| Jul 1, 2009 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 6, 2012 | Consumer Confidence 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.