Cocopah East
Arizona — Community Water System — PWSID: 090400073
System Information
| PWSID | 090400073 |
| System Name | Cocopah East |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| 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 | Somerton |
| ZIP Code | 85350 |
| Address | 14515 So. Veterans Dr. |
| Organization | Cocopah Indian Tribe |
| Phone | 9286272102 |
Population & Service
| Population Served | 280 |
| Service Connections | 72 |
Drinking Water Violations (166)
This water system has 166 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| May 1, 2025 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Jun 23, 2025 | Revised Total Coliform Rule |
| May 1, 2025 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Jun 23, 2025 | Revised Total Coliform Rule |
| May 1, 2025 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Jun 23, 2025 | Revised Total Coliform Rule |
| Jan 1, 2024 | Mar 31, 2024 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2024 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2021 | Dec 31, 2021 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2021 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Nov 1, 2013 | Nov 30, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2013 | Total Coliform Rule |
| Sep 1, 2013 | Sep 30, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2013 | Total Coliform Rule |
| Jan 1, 2011 | Dec 31, 2013 | Cadmium | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2013 | Inorganic Chemicals |
| Jan 1, 2011 | Dec 31, 2013 | Beryllium, Total | MR | No | Yes | — | 0.004 mg/L | — | Resolved | Dec 31, 2013 | Inorganic Chemicals |
| Jan 1, 2011 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 20, 2014 | Lead and Copper Rule |
| Jan 1, 2011 | Dec 31, 2013 | Thallium, Total | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2013 | Inorganic Chemicals |
| Jan 1, 2011 | Dec 31, 2013 | Antimony, Total | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Dec 31, 2013 | Inorganic Chemicals |
| Jan 1, 2011 | Dec 31, 2013 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Dec 31, 2013 | Arsenic Rule |
| Jan 1, 2011 | Dec 31, 2013 | Selenium | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Dec 31, 2013 | Inorganic Chemicals |
| Jan 1, 2011 | Dec 31, 2013 | Mercury | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2013 | Inorganic Chemicals |
| Jan 1, 2011 | Dec 31, 2013 | Fluoride | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2013 | Inorganic Chemicals |
| Jan 1, 2011 | Dec 31, 2013 | Chromium | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2013 | Inorganic Chemicals |
| Jan 1, 2011 | Dec 31, 2013 | Barium | MR | No | Yes | — | 2 mg/L | — | Resolved | Dec 31, 2013 | Inorganic Chemicals |
| Jan 1, 2011 | Dec 31, 2013 | CYANIDE | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2013 | Inorganic Chemicals |
| Jan 1, 2009 | Dec 31, 2009 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2009 | Nitrate Rule |
| Jan 1, 2009 | Dec 31, 2009 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2009 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2009 | Dec 31, 2009 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2009 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2008 | Dec 31, 2010 | Barium | MR | No | Yes | — | 2 mg/L | — | Resolved | Dec 31, 2010 | Inorganic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | CYANIDE | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2010 | Inorganic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | Thallium, Total | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2010 | Inorganic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | Cadmium | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2010 | Inorganic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Dec 31, 2010 | Arsenic Rule |
| Jan 1, 2008 | Dec 31, 2010 | Mercury | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2010 | Inorganic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | Chromium | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2010 | Inorganic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | Antimony, Total | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Dec 31, 2010 | Inorganic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | Fluoride | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2010 | Inorganic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | Selenium | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Dec 31, 2010 | Inorganic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | Beryllium, Total | MR | No | Yes | — | 0.004 mg/L | — | Resolved | Dec 31, 2010 | Inorganic Chemicals |
| Jul 1, 2006 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Mar 31, 2010 | Consumer Confidence Rule |
| Jun 1, 2006 | Jun 30, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2006 | Total Coliform Rule |
| Oct 1, 2005 | Oct 31, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2005 | Total Coliform Rule |
| Sep 1, 2005 | Sep 30, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2005 | Total Coliform Rule |
| Aug 1, 2005 | Aug 31, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2005 | Total Coliform Rule |
| Jul 1, 2005 | Jul 31, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2005 | Total Coliform Rule |
| Jul 1, 2005 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Mar 31, 2010 | Consumer Confidence Rule |
| Jun 1, 2005 | Jun 30, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2005 | Total Coliform Rule |
| May 1, 2005 | May 31, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2005 | Total Coliform Rule |
| Apr 1, 2005 | Apr 30, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2005 | Total Coliform Rule |
| Jan 1, 2005 | Dec 31, 2005 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2005 | Nitrate Rule |
| Jan 1, 2004 | Dec 31, 2004 | Di(2-ethylhexyl) adipate | MR | No | Yes | — | 0.4 mg/L | — | Resolved | Dec 31, 2004 | Synthetic Organic Chemicals |
| Jan 1, 2004 | Dec 31, 2004 | HEXACHLOROBENZENE | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2004 | Synthetic Organic Chemicals |
| Jan 1, 2004 | Dec 31, 2004 | Hexachlorocyclopentadiene | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Dec 31, 2004 | Synthetic Organic Chemicals |
| Jan 1, 2004 | Dec 31, 2004 | Atrazine | MR | No | Yes | — | 0.003 mg/L | — | Resolved | Dec 31, 2004 | Synthetic Organic Chemicals |
| Jan 1, 2004 | Dec 31, 2004 | LASSO | MR | No | Yes | — | — | — | Resolved | Dec 31, 2004 | Synthetic Organic Chemicals |
| Jan 1, 2004 | Dec 31, 2004 | ETHYLENE DIBROMIDE | MR | No | Yes | — | 0.00005 mg/L | — | Resolved | Dec 31, 2004 | Synthetic Organic Chemicals |
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.