WINLOCK SHELL
Washington — Transient Non-Community — PWSID: WA5306226
System Information
| PWSID | WA5306226 |
| System Name | WINLOCK SHELL |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Nov 27, 1997 |
| Last Reported | Dec 11, 2025 |
Location & Contact
| State | Washington |
| City | Napavine |
| ZIP Code | 98565 |
| Address | PO Box 780 |
| Organization | WINLOCK SHELL |
| Phone | — |
Population & Service
| Population Served | 159 |
| Service Connections | 1 |
Drinking Water Violations (2)
This water system has 2 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mar 1, 2000 | Mar 31, 2000 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Mar 31, 2000 | Total Coliform Rule |
| Jan 1, 2000 | Jan 31, 2000 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Jan 31, 2000 | Total Coliform Rule |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.