COULEE DAM WATER DEPT
PWS ID: WA5315400 · Coulee Dam, Washington 99116
Population Served
1,359
Total Violations
7
Health-Based Violations
4
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 628
- County
- Okanogan
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 0
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | TT | 4 | 1992 |
| Consumer Confidence Rule | Other | 3 | 2015 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.