LEWIS & CLARK TRAIL STATE PARK
Washington — Transient Non-Community — PWSID: WA53SP470
System Information
| PWSID | WA53SP470 |
| System Name | LEWIS & CLARK TRAIL STATE PARK |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | State |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 7, 1981 |
| Last Reported | Dec 11, 2025 |
Location & Contact
| State | Washington |
| City | Dayton |
| ZIP Code | 99328 |
| Address | 36149 Highway 12 |
| Organization | LEWIS & CLARK TRAIL STATE PARK |
| Phone | — |
Population & Service
| Population Served | 239 |
| Service Connections | 8 |
Drinking Water Violations (5)
This water system has 5 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2016 | Jan 31, 2016 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2016 | Total Coliform Rule |
| Oct 1, 2003 | Oct 31, 2003 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Oct 31, 2003 | Total Coliform Rule |
| Oct 1, 2000 | Oct 31, 2000 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Oct 31, 2000 | Total Coliform Rule |
| Dec 1, 1995 | Dec 31, 1995 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Dec 31, 1995 | Total Coliform Rule |
| Oct 19, 1994 | Nov 18, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Nov 18, 1994 | 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.