CURLEW LAKE STATE PARK
PWS ID: WA53SP200 · Winthrop, Washington 98862
Population Served
779
Total Violations
69
Health-Based Violations
49
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- State
- Connections
- 48
- County
- Ferry
- School/Daycare
- No
- MCL Violations
- 49
- Monitoring Violations
- 19
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MCL | 35 | 2017 |
| Coliform (TCR) | MCL | 13 | 1998 |
| Nitrate | MR | 12 | 2016 |
| Coliform (TCR) | MR | 6 | 2016 |
| Revised Total Coliform Rule | MCL | 1 | 2020 |
| Revised Total Coliform Rule | MON | 1 | 2020 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.