WILLEYS LAKE TERRACE WATER ASSN
PWS ID: WA5397110 · Ferndale, Washington 98248
Population Served
180
Total Violations
34
Health-Based Violations
4
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 44
- County
- Whatcom
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 28
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 10 | 2003 |
| Nitrate | MR | 9 | 2011 |
| Nitrate | MCL | 3 | 2025 |
| Consumer Confidence Rule | Other | 1 | 2000 |
| Cadmium | MR | 1 | 1979 |
| Chromium | MR | 1 | 1979 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1979 |
| Arsenic | MR | 1 | 1979 |
| Revised Total Coliform Rule | MON | 1 | 2021 |
| Mercury | MR | 1 | 1979 |
| Selenium | MR | 1 | 1979 |
| Coliform (TCR) | MCL | 1 | 1992 |
| Barium | MR | 1 | 1979 |
| Fluoride | MR | 1 | 1979 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.