SEVEN BAYS ESTATES UNLIMITED

Washington - Community Water System - PWSID: WA5377651

System Information

PWSIDWA5377651
System NameSEVEN BAYS ESTATES UNLIMITED
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedFeb 7, 1981
Last ReportedMar 26, 2026

Location & Contact

StateWashington
CityMarshall
ZIP Code99020
AddressPO Box 66
OrganizationSEVEN BAYS ESTATES UNLIMITED
Phone-

Population & Service

Population Served431
Service Connections365

Drinking Water Violations (31)

This water system has 31 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
Jul 1, 2024 - Other No No - - - Resolved Feb 20, 2025 -
Oct 1, 2022 Oct 31, 2022 MON No Yes - - - Resolved Oct 31, 2022 -
Jan 1, 2022 Dec 31, 2022 MR No Yes - 10 mg/L - Resolved Dec 31, 2022 -
Jul 1, 2017 - Other No No - - - Resolved Oct 9, 2017 -
Nov 1, 2015 Nov 30, 2015 MR No No - 5% of samples - Resolved Nov 30, 2015 -
Jul 1, 2015 - Other No No - - - Resolved Sep 3, 2015 -
Jul 1, 2010 Jul 31, 2010 MR No No - 5% of samples - Resolved Jul 31, 2010 -
Jan 1, 2009 Dec 31, 2009 MR No Yes - 10 mg/L - Resolved Dec 31, 2009 -
Jan 1, 2009 Dec 31, 2009 MR No Yes - 10 mg/L - Resolved Dec 31, 2009 -
Dec 1, 1998 Dec 31, 1998 MR No Yes - 5% of samples - Archived Dec 31, 1998 -
Jul 1, 1997 Jan 1, 1999 MR No No - TT - Resolved Jan 1, 1999 -
Jul 1, 1993 Jul 31, 1993 MCL Yes No - 5% of samples - Archived Jul 31, 1993 -
Jun 1, 1993 Jun 30, 1993 MCL Yes No - 5% of samples - Archived Jun 30, 1993 -
Nov 1, 1992 Nov 30, 1992 MR No No - 5% of samples - Archived Nov 30, 1992 -
May 1, 1992 May 31, 1992 MCL Yes No - 5% of samples - Archived May 31, 1992 -
May 1, 1992 May 31, 1992 MR No Yes - 5% of samples - Archived May 31, 1992 -
May 1, 1992 May 31, 1992 MCL Yes No - 5% of samples - Archived May 31, 1992 -
May 1, 1992 May 31, 1992 MCL Yes No - 5% of samples - Archived May 31, 1992 -
Mar 1, 1992 Mar 31, 1992 MR No Yes - 5% of samples - Archived Mar 31, 1992 -
Dec 1, 1991 Dec 31, 1991 MR No Yes - 5% of samples - Archived Dec 31, 1991 -
Oct 1, 1979 Oct 31, 1979 MR No No - 10 mg/L - Archived Oct 31, 1979 -
Oct 1, 1979 Oct 31, 1979 MR No No - 0.002 mg/L - Archived Oct 31, 1979 -
Oct 1, 1979 Oct 31, 1979 MR No No - 0.1 mg/L - Archived Oct 31, 1979 -
Oct 1, 1979 Oct 31, 1979 MR No No - 4.0 mg/L - Archived Oct 31, 1979 -
Oct 1, 1979 Oct 31, 1979 MR No No - 15 pCi/L - Archived Oct 31, 1979 -
Oct 1, 1979 Oct 31, 1979 MR No No - 0.05 mg/L - Archived Oct 31, 1979 -
Oct 1, 1979 Oct 31, 1979 MR No No - 0.010 mg/L - Archived Oct 31, 1979 -
Oct 1, 1979 Oct 31, 1979 MR No No - 0.005 mg/L - Archived Oct 31, 1979 -
Oct 1, 1979 Oct 31, 1979 MR No No - 2 mg/L - Archived Oct 31, 1979 -
- - - No No - - - - - -
- - - 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.

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