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CAPE HORN MAINTENANCE COMPANY

Washington — Community Water System — PWSID: WA5311060

System Information

PWSIDWA5311060
System NameCAPE HORN MAINTENANCE COMPANY
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
CityMt Vernon
ZIP Code98273
Address14263 Calhoun Rd
OrganizationCAPE HORN MAINTENANCE COMPANY
Phone—

Population & Service

Population Served940
Service Connections566

Drinking Water Violations (32)

This water system has 32 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, 2025 Dec 31, 2025 MR No Yes — 0.080 mg/L — Archived Dec 31, 2025 —
Jan 1, 2025 Dec 31, 2025 MR No Yes — 0.060 mg/L — Archived Dec 31, 2025 —
Sep 1, 2014 Sep 30, 2014 MCL Yes No — 5% of samples — Resolved Sep 30, 2014 —
Jun 1, 2014 Jun 30, 2014 MCL Yes No — 5% of samples — Resolved Jun 30, 2014 —
Oct 1, 2013 Oct 31, 2013 MCL Yes No — 5% of samples — Resolved Oct 31, 2013 —
Jan 1, 2002 Dec 31, 2004 MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2002 Dec 31, 2004 MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2004 —
May 1, 2000 May 31, 2000 MCL Yes No — 5% of samples — Archived May 31, 2000 —
May 1, 2000 May 31, 2000 MCL Yes No — 5% of samples — Archived May 31, 2000 —
May 1, 2000 May 31, 2000 MCL Yes No — 5% of samples — Archived May 31, 2000 —
Jul 1, 1999 Jul 31, 1999 MCL Yes No — 5% of samples — Archived Jul 31, 1999 —
Jul 1, 1999 Jul 31, 1999 MCL Yes No — 5% of samples — Archived Jul 31, 1999 —
Jul 1, 1999 Jul 31, 1999 MCL Yes No — 5% of samples — Archived Jul 31, 1999 —
Jun 1, 1999 Jun 30, 1999 MCL Yes No — 5% of samples — Archived Jun 30, 1999 —
Jun 1, 1999 Jun 30, 1999 MCL Yes No — 5% of samples — Archived Jun 30, 1999 —
Jun 1, 1999 Jun 30, 1999 MCL Yes No — 5% of samples — Archived Jun 30, 1999 —
May 1, 1999 May 31, 1999 MCL Yes No — 5% of samples — Archived May 31, 1999 —
May 1, 1999 May 31, 1999 MCL Yes No — 5% of samples — Archived May 31, 1999 —
May 1, 1999 May 31, 1999 MCL Yes No — 5% of samples — Archived May 31, 1999 —
Jul 1, 1998 Jul 31, 1998 MCL Yes No — 5% of samples — Archived Jul 31, 1998 —
Jul 1, 1998 Jul 31, 1998 MCL Yes No — 5% of samples — Archived Jul 31, 1998 —
Jul 1, 1998 Jul 31, 1998 MCL Yes No — 5% of samples — Archived Jul 31, 1998 —
Jun 1, 1996 Jun 30, 1996 MCL Yes No — 5% of samples — Archived Jun 30, 1996 —
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 — 0.05 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 — 0.005 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 — 0.002 mg/L — Archived Oct 31, 1979 —
Oct 1, 1979 Oct 31, 1979 MR No No — 2 mg/L — Archived Oct 31, 1979 —
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 — 4.0 mg/L — Archived Oct 31, 1979 —

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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