NORTH LOPEZ SERVICE
PWS ID: WA5360665 · Lopez Island, Washington 98261-0683
Population Served
114
Total Violations
48
Health-Based Violations
6
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 59
- County
- San Juan
- School/Daycare
- No
- MCL Violations
- 6
- Monitoring Violations
- 39
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 6 | 2000 |
| Coliform (TCR) | MR | 6 | 1996 |
| Styrene | MR | 1 | 2020 |
| Vinyl chloride | MR | 1 | 2020 |
| CHLOROBENZENE | MR | 1 | 2020 |
| Arsenic | MR | 1 | 2020 |
| Nickel | MR | 1 | 2020 |
| Beryllium, Total | MR | 1 | 2020 |
| Fluoride | MR | 1 | 2020 |
| 1,1,1-Trichloroethane | MR | 1 | 2020 |
| Selenium | MR | 1 | 2020 |
| o-Dichlorobenzene | MR | 1 | 2020 |
| Carbon tetrachloride | MR | 1 | 2020 |
| Cadmium | MR | 1 | 2020 |
| 1,2-Dichloroethane | MR | 1 | 2020 |
| CYANIDE | MR | 1 | 2020 |
| 1,1-Dichloroethylene | MR | 1 | 2020 |
| Mercury | MR | 1 | 2020 |
| Chromium | MR | 1 | 2020 |
| p-Dichlorobenzene | MR | 1 | 2020 |
| cis-1,2-Dichloroethylene | MR | 1 | 2020 |
| Trichloroethylene | MR | 1 | 2020 |
| DICHLOROMETHANE | MR | 1 | 2020 |
| Antimony, Total | MR | 1 | 2020 |
| 1,2,4-Trichlorobenzene | MR | 1 | 2020 |
| Thallium, Total | MR | 1 | 2020 |
| Benzene | MR | 1 | 2020 |
| Toluene | MR | 1 | 2020 |
| trans-1,2-Dichloroethylene | MR | 1 | 2020 |
| Nitrite | MR | 1 | 2020 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.