BLACK DIAMOND WATER DISTRICT
PWS ID: WA5307221 · PORT ANGELES, Washington 98362
Population Served
452
Total Violations
98
Health-Based Violations
10
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 231
- County
- Clallam
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 85
- Treatment Tech Violations
- 10
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | MR | 20 | 2025 |
| Coliform (TCR) | MR | 12 | 2000 |
| Surface Water Treatment Rule | TT | 10 | 2007 |
| 1,2,4-Trichlorobenzene | MR | 2 | 2007 |
| o-Dichlorobenzene | MR | 2 | 2007 |
| p-Dichlorobenzene | MR | 2 | 2007 |
| Vinyl chloride | MR | 2 | 2007 |
| Carbon tetrachloride | MR | 2 | 2007 |
| CHLOROBENZENE | MR | 2 | 2007 |
| Toluene | MR | 2 | 2007 |
| Ethylbenzene | MR | 2 | 2007 |
| Revised Total Coliform Rule | MON | 2 | 2024 |
| cis-1,2-Dichloroethylene | MR | 2 | 2007 |
| 1,1-Dichloroethylene | MR | 2 | 2007 |
| DICHLOROMETHANE | MR | 2 | 2007 |
| 1,2-Dichloropropane | MR | 2 | 2007 |
| Benzene | MR | 2 | 2007 |
| 1,2-Dichloroethane | MR | 2 | 2007 |
| Trichloroethylene | MR | 2 | 2007 |
| Styrene | MR | 2 | 2007 |
| trans-1,2-Dichloroethylene | MR | 2 | 2007 |
| 1,1,2-Trichloroethane | MR | 2 | 2007 |
| Tetrachloroethylene | MR | 2 | 2007 |
| 1,1,1-Trichloroethane | MR | 2 | 2007 |
| TTHM | MR | 1 | 2023 |
| Total Haloacetic Acids (HAA5) | MR | 1 | 2023 |
| Nitrate | MR | 1 | 1979 |
| Selenium | MR | 1 | 1979 |
| Arsenic | MR | 1 | 1979 |
| Chromium | MR | 1 | 1979 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.