Monument Valley Mission - Hospital
PWS ID: NN4900222 · Monument Valley, Navajo Nation 84536
Population Served
303
Total Violations
578
Health-Based Violations
3
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Public/Private
- Connections
- 55
- School/Daycare
- No
- MCL Violations
- 2
- Monitoring Violations
- 506
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 106 | 2016 |
| Nitrate | MR | 36 | 2024 |
| Nitrite | MR | 28 | 2024 |
| Consumer Confidence Rule | Other | 15 | 2024 |
| Revised Total Coliform Rule | MON | 12 | 2025 |
| Public Notice | Other | 12 | 2025 |
| Revised Total Coliform Rule | RPT | 9 | 2025 |
| Arsenic | MR | 5 | 2008 |
| Barium | MR | 5 | 2008 |
| Cadmium | MR | 5 | 2008 |
| Chromium | MR | 5 | 2008 |
| Fluoride | MR | 5 | 2008 |
| Mercury | MR | 5 | 2008 |
| Selenium | MR | 5 | 2008 |
| Antimony, Total | MR | 5 | 2008 |
| Beryllium, Total | MR | 5 | 2008 |
| Thallium, Total | MR | 5 | 2008 |
| Endrin | MR | 5 | 2008 |
| BHC-GAMMA | MR | 5 | 2008 |
| Methoxychlor | MR | 5 | 2008 |
| Toxaphene | MR | 5 | 2008 |
| Dalapon | MR | 5 | 2008 |
| Endothall | MR | 5 | 2008 |
| Di(2-ethylhexyl) adipate | MR | 5 | 2008 |
| Simazine | MR | 5 | 2008 |
| Picloram | MR | 5 | 2008 |
| Dinoseb | MR | 5 | 2008 |
| Carbofuran | MR | 5 | 2008 |
| Atrazine | MR | 5 | 2008 |
| LASSO | MR | 5 | 2008 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.