SUMAS RURAL WATER ASSOCIATION
PWS ID: WA5384850 · Sumas, Washington 98295
Population Served
612
Total Violations
80
Health-Based Violations
48
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 199
- County
- Whatcom
- School/Daycare
- No
- MCL Violations
- 48
- Monitoring Violations
- 30
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 48 | 2005 |
| Coliform (TCR) | MR | 20 | 1992 |
| Lead and Copper Rule | MR | 2 | 2015 |
| Arsenic | MR | 1 | 1979 |
| Mercury | MR | 1 | 1979 |
| Selenium | MR | 1 | 1979 |
| Cadmium | MR | 1 | 1979 |
| Barium | MR | 1 | 1979 |
| Fluoride | MR | 1 | 1979 |
| Nitrate | MR | 1 | 1979 |
| Chromium | MR | 1 | 1979 |
| Consumer Confidence Rule | Other | 1 | 1999 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.