GRAND MOUND
PWS ID: WA5307158 · Olympia, Washington 98512
Population Served
3,764
Total Violations
4
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 426
- County
- Thurston
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 2
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Consumer Confidence Rule | Other | 2 | 2016 |
| Nitrate | MR | 1 | 2009 |
| Revised Total Coliform Rule | MON | 1 | 2018 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.