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COLONIAL OAK WC INC

California - Community Water System - PWSID: CA2700534

System Information

PWSIDCA2700534
System NameCOLONIAL OAK WC INC
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedMar 22, 1979
Last ReportedMar 20, 2026

Location & Contact

StateCalifornia
CitySALINAS
ZIP Code93907
Address19020 KAREN DRIVE
OrganizationVOCELKA, JIM
Phone831-663-6644

Population & Service

Population Served198
Service Connections66

Drinking Water Violations (66)

This water system has 66 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 2, 2025 - RPT No No - - - Unaddressed - -
Jan 1, 2024 Mar 31, 2024 MCL Yes No 11 MG/L 10 mg/L 10 Archived Mar 31, 2024 -
Jan 1, 2024 Mar 31, 2024 MCL Yes No 11 MG/L 10 mg/L 10 Archived Mar 31, 2024 -
Jul 1, 2023 Sep 30, 2023 MCL Yes No 11 MG/L 10 mg/L - Archived Sep 30, 2023 -
Jul 1, 2023 Sep 30, 2023 MCL Yes No 11 MG/L 10 mg/L - Archived Sep 30, 2023 -
Apr 1, 2023 Jun 30, 2023 MCL Yes No 11 MG/L 10 mg/L 10 Archived Jun 30, 2023 -
Apr 1, 2023 Jun 30, 2023 MCL Yes No 11 MG/L 10 mg/L 10 Archived Jun 30, 2023 -
Jul 1, 2015 Jul 31, 2015 MCL Yes No - 5% of samples - Resolved Jul 31, 2015 -
Jul 1, 2015 Jul 31, 2015 MCL Yes No - 5% of samples - Resolved Jul 31, 2015 -
Jul 1, 2015 Jul 31, 2015 MCL Yes No - 5% of samples - Resolved Jul 31, 2015 -
Jul 1, 2015 Jul 31, 2015 MCL Yes No - 5% of samples - Resolved Jul 31, 2015 -
Jun 1, 2015 Jun 30, 2015 MCL Yes No - 5% of samples - Resolved Jun 30, 2015 -
Jun 1, 2015 Jun 30, 2015 MCL Yes No - 5% of samples - Resolved Jun 30, 2015 -
Jun 1, 2015 Jun 30, 2015 MCL Yes No - 5% of samples - Resolved Jun 30, 2015 -
Jun 1, 2015 Jun 30, 2015 MCL Yes No - 5% of samples - Resolved Jun 30, 2015 -
Jun 1, 2015 Jun 30, 2015 MCL Yes No - 5% of samples - Resolved Jun 30, 2015 -
May 1, 2015 May 31, 2015 MCL Yes No - 5% of samples - Resolved May 31, 2015 -
May 1, 2015 May 31, 2015 MCL Yes No - 5% of samples - Resolved May 31, 2015 -
Apr 1, 2015 Apr 30, 2015 MCL Yes No - 5% of samples - Resolved Apr 30, 2015 -
Apr 1, 2015 Apr 30, 2015 MCL Yes No - 5% of samples - Resolved Apr 30, 2015 -
Jul 1, 2014 Jul 31, 2014 MCL Yes No - 5% of samples - Resolved Jul 31, 2014 -
Jul 1, 2014 Jul 31, 2014 MCL Yes No - 5% of samples - Resolved Jul 31, 2014 -
Jul 1, 2014 Jul 31, 2014 MCL Yes No - 5% of samples - Resolved Jul 31, 2014 -
Jul 1, 2014 Jul 31, 2014 MCL Yes No - 5% of samples - Resolved Jul 31, 2014 -
Jul 1, 2012 Jul 31, 2012 MCL Yes No - 5% of samples - Resolved Jul 31, 2012 -
Jul 1, 2012 Jul 31, 2012 MCL Yes No - 5% of samples - Resolved Jul 31, 2012 -
Jul 1, 2012 Jul 31, 2012 MCL Yes No - 5% of samples - Resolved Jul 31, 2012 -
Jun 1, 2012 Jun 30, 2012 MCL Yes No - 5% of samples - Resolved Jun 30, 2012 -
Jun 1, 2012 Jun 30, 2012 MCL Yes No - 5% of samples - Resolved Jun 30, 2012 -
Jun 1, 2012 Jun 30, 2012 MCL Yes No - 5% of samples - Resolved Jun 30, 2012 -
Dec 1, 2011 Dec 31, 2011 MCL Yes No - 5% of samples - Resolved Dec 31, 2011 -
Dec 1, 2011 Dec 31, 2011 MCL Yes No - 5% of samples - Resolved Dec 31, 2011 -
Dec 1, 2011 Dec 31, 2011 MCL Yes No - 5% of samples - Resolved Dec 31, 2011 -
Nov 1, 2011 Nov 30, 2011 MCL Yes No - 5% of samples - Resolved Nov 30, 2011 -
Nov 1, 2011 Nov 30, 2011 MCL Yes No - 5% of samples - Resolved Nov 30, 2011 -
Nov 1, 2011 Nov 30, 2011 MCL Yes No - 5% of samples - Resolved Nov 30, 2011 -
Jan 1, 2010 Mar 31, 2010 MR No Yes - 10 mg/L - Resolved Mar 31, 2010 -
Jan 1, 2010 Mar 31, 2010 MR No Yes - 10 mg/L - Resolved Mar 31, 2010 -
Sep 1, 2007 Sep 30, 2007 MCL Yes No - 5% of samples - Resolved Sep 30, 2007 -
Sep 1, 2007 Sep 30, 2007 MCL Yes No - 5% of samples - Resolved Sep 30, 2007 -
Sep 1, 2007 Sep 30, 2007 MCL Yes No - 5% of samples - Resolved Sep 30, 2007 -
Nov 1, 2006 Nov 30, 2006 MCL Yes No - 5% of samples - Resolved Nov 30, 2006 -
Nov 1, 2006 Nov 30, 2006 MCL Yes No - 5% of samples - Resolved Nov 30, 2006 -
Nov 1, 2006 Nov 30, 2006 MCL Yes No - 5% of samples - Resolved Nov 30, 2006 -
Nov 1, 2006 Nov 30, 2006 MCL Yes No - 5% of samples - Resolved Nov 30, 2006 -
Jan 1, 2006 Jan 31, 2006 MCL Yes No - 5% of samples - Resolved Jan 31, 2006 -
Jan 1, 2006 Jan 31, 2006 MCL Yes No - 5% of samples - Resolved Jan 31, 2006 -
Jan 1, 2006 Jan 31, 2006 MCL Yes No - 5% of samples - Resolved Jan 31, 2006 -
Jul 1, 2005 Jul 31, 2005 MR No No - 5% of samples - Resolved Jul 31, 2005 -
Jul 1, 2005 Jul 31, 2005 MR No No - 5% of samples - Resolved Jul 31, 2005 -

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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