Round Valley Hidden Oaks Casino and Restaurant
PWS ID: 090605177 · Covelo, 09 95428
Population Served
137
Total Violations
96
Health-Based Violations
3
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Native American
- Connections
- 7
- School/Daycare
- No
- MCL Violations
- 1
- Monitoring Violations
- 64
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 15 | 2022 |
| Revised Total Coliform Rule | RPT | 13 | 2023 |
| Nitrate | MR | 7 | 2023 |
| Coliform (TCR) | MR | 6 | 2015 |
| Public Notice | Other | 5 | 2022 |
| Chlorine | MR | 4 | 2022 |
| TTHM | MR | 3 | 2020 |
| Total Haloacetic Acids (HAA5) | MR | 3 | 2020 |
| Revised Total Coliform Rule | MON | 3 | 2022 |
| Arsenic | MR | 2 | 2011 |
| Cadmium | MR | 2 | 2011 |
| Chromium | MR | 2 | 2011 |
| Barium | MR | 2 | 2011 |
| Mercury | MR | 2 | 2011 |
| Antimony, Total | MR | 2 | 2011 |
| Selenium | MR | 2 | 2011 |
| Beryllium, Total | MR | 2 | 2011 |
| Thallium, Total | MR | 2 | 2011 |
| Groundwater Rule | TT | 2 | 2022 |
| CYANIDE | MR | 1 | 2008 |
| Fluoride | MR | 1 | 2008 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 1 | 2011 |
| ETHYLENE DIBROMIDE | MR | 1 | 2011 |
| Coliform (TCR) | MCL | 1 | 2014 |
| E. COLI | MR | 1 | 2011 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.