Shanel Tribal Utility District
PWS ID: 090600133 · Hopland, 09 95449
Population Served
250
Total Violations
340
Health-Based Violations
5
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Native American
- Connections
- 96
- School/Daycare
- No
- MCL Violations
- 5
- Monitoring Violations
- 154
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 19 | 2015 |
| Chlorine | MR | 9 | 2025 |
| Gross Alpha, Excl. Radon and U | MR | 6 | 2009 |
| TTHM | MR | 6 | 2023 |
| Nitrate | MR | 5 | 2007 |
| Combined Radium (-226 and -228) | MR | 5 | 2009 |
| Coliform (TCR) | MCL | 5 | 2005 |
| Consumer Confidence Rule | Other | 5 | 2006 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2023 |
| Methoxychlor | MR | 2 | 2001 |
| Toxaphene | MR | 2 | 2001 |
| Carbofuran | MR | 2 | 2001 |
| Atrazine | MR | 2 | 2001 |
| Heptachlor epoxide | MR | 2 | 2001 |
| 2,4-D | MR | 2 | 2001 |
| 2,4,5-TP | MR | 2 | 2001 |
| Pentachlorophenol | MR | 2 | 2001 |
| cis-1,2-Dichloroethylene | MR | 2 | 2001 |
| Total Polychlorinated Biphenyls (PCB) | MR | 2 | 2001 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 2 | 2001 |
| ETHYLENE DIBROMIDE | MR | 2 | 2001 |
| Xylenes, Total | MR | 2 | 2001 |
| Chlordane | MR | 2 | 2001 |
| o-Dichlorobenzene | MR | 2 | 2001 |
| p-Dichlorobenzene | MR | 2 | 2001 |
| 1,1-Dichloroethylene | MR | 2 | 2001 |
| trans-1,2-Dichloroethylene | MR | 2 | 2001 |
| 1,2-Dichloroethane | MR | 2 | 2001 |
| 1,1,1-Trichloroethane | MR | 2 | 2001 |
| Carbon tetrachloride | MR | 2 | 2001 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.