Mishongnovi (Upper Sipaulovi/Upper Mishongnovi)
PWS ID: 090400394 · Second Mesa, 09 86043
Population Served
490
Total Violations
454
Health-Based Violations
121
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Native American
- Connections
- 41
- School/Daycare
- No
- MCL Violations
- 121
- Monitoring Violations
- 237
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MCL | 121 | 2022 |
| Coliform (TCR) | MR | 43 | 2015 |
| Arsenic | MR | 18 | 2016 |
| Public Notice | Other | 12 | 2016 |
| Nitrate | MR | 7 | 2013 |
| Consumer Confidence Rule | Other | 7 | 2010 |
| Lead and Copper Rule | MR | 6 | 2014 |
| Fluoride | MR | 4 | 2004 |
| Barium | MR | 3 | 2001 |
| Cadmium | MR | 3 | 2001 |
| Chromium | MR | 3 | 2001 |
| Mercury | MR | 3 | 2001 |
| BHC-GAMMA | MR | 3 | 2001 |
| Methoxychlor | MR | 3 | 2001 |
| Toxaphene | MR | 3 | 2001 |
| Carbofuran | MR | 3 | 2001 |
| LASSO | MR | 3 | 2001 |
| 2,3,7,8-TCDD | MR | 3 | 2011 |
| Heptachlor | MR | 3 | 2001 |
| 2,4-D | MR | 3 | 2001 |
| 2,4,5-TP | MR | 3 | 2001 |
| Pentachlorophenol | MR | 3 | 2001 |
| 1,2,4-Trichlorobenzene | MR | 3 | 2001 |
| cis-1,2-Dichloroethylene | MR | 3 | 2001 |
| Total Polychlorinated Biphenyls (PCB) | MR | 3 | 2001 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 3 | 2001 |
| ETHYLENE DIBROMIDE | MR | 3 | 2001 |
| Chlordane | MR | 3 | 2001 |
| DICHLOROMETHANE | MR | 3 | 2001 |
| o-Dichlorobenzene | MR | 3 | 2001 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.