LEWIS & CLARK STATE PARK
PWS ID: WA53SP460 · Castle Rock, Washington 98611
Population Served
595
Total Violations
27
Health-Based Violations
2
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- State
- Connections
- 37
- County
- Lewis
- School/Daycare
- No
- MCL Violations
- 2
- Monitoring Violations
- 24
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MR | 13 | 2007 |
| Coliform (TCR) | MR | 9 | 2006 |
| Revised Total Coliform Rule | MON | 2 | 2018 |
| Revised Total Coliform Rule | MCL | 2 | 2021 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.