GRIGGS MARCUS
PWS ID: WA5329903 · Tonasket, Washington 98855-9433
Population Served
55
Total Violations
13
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 8
- County
- Douglas
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 12
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 10 | 2010 |
| Nitrate | MR | 2 | 2022 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.