Cocopah West
PWS ID: 090400071 · Somerton, 09 85350
Population Served
325
Total Violations
159
Health-Based Violations
4
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Native American
- Connections
- 90
- School/Daycare
- No
- MCL Violations
- 2
- Monitoring Violations
- 64
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 23 | 2013 |
| Nitrate | MR | 5 | 2009 |
| Consumer Confidence Rule | Other | 5 | 2006 |
| Lead and Copper Rule | MR | 4 | 2011 |
| Revised Total Coliform Rule | RPT | 3 | 2025 |
| Coliform (TCR) | MCL | 2 | 2008 |
| Total Haloacetic Acids (HAA5) | MR | 2 | 2010 |
| TTHM | MR | 2 | 2010 |
| Groundwater Rule | TT | 2 | 2014 |
| Public Notice | Other | 2 | 2014 |
| Barium | MR | 1 | 1996 |
| Cadmium | MR | 1 | 1996 |
| Mercury | MR | 1 | 1996 |
| Selenium | MR | 1 | 1996 |
| Antimony, Total | MR | 1 | 1996 |
| Thallium, Total | MR | 1 | 1996 |
| Dalapon | MR | 1 | 2004 |
| Diquat | MR | 1 | 2004 |
| Di(2-ethylhexyl) adipate | MR | 1 | 2004 |
| OXAMYL | MR | 1 | 2004 |
| Di(2-ethylhexyl) phthalate | MR | 1 | 2004 |
| Hexachlorocyclopentadiene | MR | 1 | 2004 |
| Total Polychlorinated Biphenyls (PCB) | MR | 1 | 2004 |
| HEXACHLOROBENZENE | MR | 1 | 2004 |
| ETHYLENE DIBROMIDE | MR | 1 | 2004 |
| 2,3,7,8-TCDD | MR | 1 | 2004 |
| Picloram | MR | 1 | 2004 |
| Endothall | MR | 1 | 2004 |
| LASSO | MR | 1 | 2004 |
| Atrazine | MR | 1 | 2004 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.