Mossyrock Park Power House
Washington — Transient Non-Community — PWSID: WA5307731
System Information
| PWSID | WA5307731 |
| System Name | Mossyrock Park Power House |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Dec 4, 1981 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Washington |
| City | Silver Creek |
| ZIP Code | 98585 |
| Address | PO Box 109 |
| Organization | Mossyrock Park Power House |
| Phone | — |
Population & Service
| Population Served | 832 |
| Service Connections | 112 |
Drinking Water Violations (16)
This water system has 16 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 1, 2005 | Aug 31, 2005 | MR | No | No | — | 5% of samples | — | Archived | Aug 31, 2005 | — | |
| Jun 1, 2005 | Jun 30, 2005 | MCL | Yes | No | — | 5% of samples | — | Archived | Jun 30, 2005 | — | |
| Nov 1, 2003 | Nov 30, 2003 | MCL | Yes | No | — | 5% of samples | — | Archived | Nov 30, 2003 | — | |
| Oct 1, 2003 | Oct 31, 2003 | MCL | Yes | No | — | 5% of samples | — | Archived | Oct 31, 2003 | — | |
| Nov 1, 1995 | Nov 30, 1995 | MR | No | Yes | — | 5% of samples | — | Archived | Nov 30, 1995 | — | |
| Sep 1, 1995 | Sep 30, 1995 | MCL | Yes | No | — | 5% of samples | — | Archived | Sep 30, 1995 | — | |
| Apr 1, 1994 | Apr 30, 1994 | MCL | Yes | No | — | 5% of samples | — | Archived | Apr 30, 1994 | — | |
| Oct 1, 1993 | Oct 31, 1993 | MCL | Yes | No | — | 5% of samples | — | Archived | Oct 31, 1993 | — | |
| Aug 1, 1993 | Aug 31, 1993 | MCL | Yes | No | — | 5% of samples | — | Archived | Aug 31, 1993 | — | |
| Sep 1, 1992 | Sep 30, 1992 | MCL | Yes | No | — | 5% of samples | — | Archived | Sep 30, 1992 | — | |
| Sep 1, 1992 | Sep 30, 1992 | MCL | Yes | No | — | 5% of samples | — | Archived | Sep 30, 1992 | — | |
| Sep 1, 1992 | Sep 30, 1992 | MCL | Yes | No | — | 5% of samples | — | Archived | Sep 30, 1992 | — | |
| Nov 1, 1991 | Nov 30, 1991 | MCL | Yes | No | — | 5% of samples | — | Archived | Nov 30, 1991 | — | |
| Nov 1, 1991 | Nov 30, 1991 | MCL | Yes | No | — | 5% of samples | — | Archived | Nov 30, 1991 | — | |
| Nov 1, 1991 | Nov 30, 1991 | MCL | Yes | No | — | 5% of samples | — | Archived | Nov 30, 1991 | — | |
| — | — | — | No | No | — | — | — | — | — | — |
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.