SEVENWINDS CASINO
PWS ID: 050595305 · HAYWARD, 05 54843
Population Served
1,900
Total Violations
310
Health-Based Violations
4
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Native American
- Connections
- 1
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 297
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 52 | 2014 |
| Revised Total Coliform Rule | MON | 25 | 2024 |
| Lead and Copper Rule | MR | 23 | 2023 |
| Arsenic | MR | 5 | 2020 |
| Barium | MR | 5 | 2020 |
| Cadmium | MR | 5 | 2020 |
| CYANIDE | MR | 5 | 2020 |
| Mercury | MR | 5 | 2020 |
| Beryllium, Total | MR | 5 | 2020 |
| Asbestos | MR | 5 | 2020 |
| Chromium | MR | 5 | 2020 |
| Nickel | MR | 5 | 2020 |
| Antimony, Total | MR | 5 | 2020 |
| Thallium, Total | MR | 5 | 2020 |
| Selenium | MR | 5 | 2020 |
| Fluoride | MR | 5 | 2020 |
| Revised Total Coliform Rule | RPT | 4 | 2025 |
| Coliform (TCR) | MCL | 4 | 2007 |
| 2,3,7,8-TCDD | MR | 3 | 2017 |
| Endrin | MR | 3 | 2020 |
| BHC-GAMMA | MR | 3 | 2020 |
| Toxaphene | MR | 3 | 2020 |
| Dalapon | MR | 3 | 2020 |
| Diquat | MR | 3 | 2020 |
| Endothall | MR | 3 | 2020 |
| Glyphosate | MR | 3 | 2020 |
| OXAMYL | MR | 3 | 2020 |
| Di(2-ethylhexyl) adipate | MR | 3 | 2020 |
| Simazine | MR | 3 | 2020 |
| Di(2-ethylhexyl) phthalate | MR | 3 | 2020 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.