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Mossyrock Park Power House

Washington — Transient Non-Community — PWSID: WA5307731

System Information

PWSIDWA5307731
System NameMossyrock Park Power House
System TypeTransient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedDec 4, 1981
Last ReportedDec 11, 2025

Location & Contact

StateWashington
CitySilver Creek
ZIP Code98585
AddressPO Box 109
OrganizationMossyrock Park Power House
Phone—

Population & Service

Population Served832
Service Connections112

Drinking Water Violations (15)

This water system has 15 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 Coliform (TCR) MR No No — 5% of samples — Archived Aug 31, 2005 Total Coliform Rule
Jun 1, 2005 Jun 30, 2005 Coliform (TCR) MCL Yes No — 5% of samples — Archived Jun 30, 2005 Total Coliform Rule
Nov 1, 2003 Nov 30, 2003 Coliform (TCR) MCL Yes No — 5% of samples — Archived Nov 30, 2003 Total Coliform Rule
Oct 1, 2003 Oct 31, 2003 Coliform (TCR) MCL Yes No — 5% of samples — Archived Oct 31, 2003 Total Coliform Rule
Nov 1, 1995 Nov 30, 1995 Coliform (TCR) MR No Yes — 5% of samples — Archived Nov 30, 1995 Total Coliform Rule
Sep 1, 1995 Sep 30, 1995 Coliform (TCR) MCL Yes No — 5% of samples — Archived Sep 30, 1995 Total Coliform Rule
Apr 1, 1994 Apr 30, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived Apr 30, 1994 Total Coliform Rule
Oct 1, 1993 Oct 31, 1993 Coliform (TCR) MCL Yes No — 5% of samples — Archived Oct 31, 1993 Total Coliform Rule
Aug 1, 1993 Aug 31, 1993 Coliform (TCR) MCL Yes No — 5% of samples — Archived Aug 31, 1993 Total Coliform Rule
Sep 1, 1992 Sep 30, 1992 Coliform (TCR) MCL Yes No — 5% of samples — Archived Sep 30, 1992 Total Coliform Rule
Sep 1, 1992 Sep 30, 1992 Coliform (TCR) MCL Yes No — 5% of samples — Archived Sep 30, 1992 Total Coliform Rule
Sep 1, 1992 Sep 30, 1992 Coliform (TCR) MCL Yes No — 5% of samples — Archived Sep 30, 1992 Total Coliform Rule
Nov 1, 1991 Nov 30, 1991 Coliform (TCR) MCL Yes No — 5% of samples — Archived Nov 30, 1991 Total Coliform Rule
Nov 1, 1991 Nov 30, 1991 Coliform (TCR) MCL Yes No — 5% of samples — Archived Nov 30, 1991 Total Coliform Rule
Nov 1, 1991 Nov 30, 1991 Coliform (TCR) MCL Yes No — 5% of samples — Archived Nov 30, 1991 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.

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