POTLATCH STATE PARK
PWS ID: WA53SP700 · Sequim, Washington 98382
Population Served
1,055
Total Violations
13
Health-Based Violations
6
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- State
- Connections
- 38
- County
- Mason
- School/Daycare
- No
- MCL Violations
- 6
- Monitoring Violations
- 7
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 6 | 2000 |
| Coliform (TCR) | MR | 3 | 1999 |
| Revised Total Coliform Rule | MON | 3 | 2024 |
| Nitrate | MR | 1 | 2022 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.