Rock Springs Community - NTUA
PWS ID: 093500302 · Fort Defiance, 09 86504
Population Served
1,574
Total Violations
67
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Native American
- Connections
- 410
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 38
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Toluene | MR | 9 | 2016 |
| Di(2-ethylhexyl) phthalate | MR | 5 | 2016 |
| Coliform (TCR) | MR | 3 | 2015 |
| Barium | MR | 2 | 2011 |
| Thallium, Total | MR | 2 | 2011 |
| Cadmium | MR | 1 | 2011 |
| Chromium | MR | 1 | 2011 |
| CYANIDE | MR | 1 | 2011 |
| Mercury | MR | 1 | 2011 |
| Selenium | MR | 1 | 2011 |
| Antimony, Total | MR | 1 | 2011 |
| Beryllium, Total | MR | 1 | 2011 |
| Xylenes, Total | MR | 1 | 2001 |
| Total Polychlorinated Biphenyls (PCB) | MR | 1 | 2001 |
| DICHLOROMETHANE | MR | 1 | 2001 |
| Combined Radium (-226 and -228) | MR | 1 | 2008 |
| Total Haloacetic Acids (HAA5) | MR | 1 | 2014 |
| TTHM | MR | 1 | 2014 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 2008 |
| Arsenic | MR | 1 | 2011 |
| Nitrate | MR | 1 | 2011 |
| Consumer Confidence Rule | Other | 1 | 2002 |
| Fluoride | MR | 1 | 2011 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.