COULEE CITY TOWN OF
PWS ID: WA5315300 · Coulee City, Washington 99115
Population Served
944
Total Violations
27
Health-Based Violations
10
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 369
- County
- Grant
- School/Daycare
- No
- MCL Violations
- 10
- Monitoring Violations
- 15
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 10 | 1995 |
| Coliform (TCR) | MR | 8 | 2011 |
| Revised Total Coliform Rule | MON | 4 | 2025 |
| Consumer Confidence Rule | Other | 1 | 2010 |
| Total Haloacetic Acids (HAA5) | MR | 1 | 2022 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1979 |
| TTHM | MR | 1 | 2022 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.