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SONOMA COUNTY CSA 41-JENNER

California - Community Water System - PWSID: CA4900532

System Information

PWSIDCA4900532
System NameSONOMA COUNTY CSA 41-JENNER
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedMar 22, 1979
Last ReportedMar 20, 2026

Location & Contact

StateCalifornia
CitySANTA ROSA
ZIP Code95403
Address2300 County Center Drive, Suite B100
OrganizationHOEVERTSZ, JOHANNES
Phone707-565-3580

Population & Service

Population Served406
Service Connections123

Drinking Water Violations (70)

This water system has 70 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, 2021 Sep 30, 2021 MR No Yes - 0.080 mg/L - Resolved Sep 30, 2021 -
Jul 1, 2021 Sep 30, 2021 MR No Yes - 0.080 mg/L - Resolved Sep 30, 2021 -
Jul 1, 2021 Sep 30, 2021 MR No Yes - 0.060 mg/L - Resolved Sep 30, 2021 -
Jul 1, 2021 Sep 30, 2021 MR No Yes - 0.060 mg/L - Resolved Sep 30, 2021 -
Jul 1, 2020 Sep 30, 2020 MCL Yes No .061 MG/L 0.060 mg/L .06 Resolved Sep 30, 2020 -
Jul 1, 2020 Sep 30, 2020 MCL Yes No .061 MG/L 0.060 mg/L .06 Resolved Sep 30, 2020 -
Apr 1, 2020 Jun 30, 2020 MCL Yes No .068 MG/L 0.060 mg/L .06 Resolved Jun 30, 2020 -
Apr 1, 2020 Jun 30, 2020 MCL Yes No .082 MG/L 0.080 mg/L .08 Resolved Jun 30, 2020 -
Apr 1, 2020 Jun 30, 2020 MCL Yes No .082 MG/L 0.080 mg/L .08 Resolved Jun 30, 2020 -
Apr 1, 2020 Jun 30, 2020 MCL Yes No .068 MG/L 0.060 mg/L .06 Resolved Jun 30, 2020 -
Jan 1, 2020 Mar 31, 2020 MCL Yes No 89.75 UG/L 0.080 mg/L - Resolved Mar 31, 2020 -
Jan 1, 2020 Mar 31, 2020 MCL Yes No 89.75 UG/L 0.080 mg/L - Resolved Mar 31, 2020 -
Jan 1, 2020 Mar 31, 2020 MCL Yes No 70.75 UG/L 0.060 mg/L - Resolved Mar 31, 2020 -
Jan 1, 2020 Mar 31, 2020 MCL Yes No 70.75 UG/L 0.060 mg/L - Resolved Mar 31, 2020 -
Oct 1, 2019 Dec 31, 2019 MCL Yes No 74.5 UG/L 0.060 mg/L - Resolved Dec 31, 2019 -
Oct 1, 2019 Dec 31, 2019 MCL Yes No 74.5 UG/L 0.060 mg/L - Resolved Dec 31, 2019 -
Oct 1, 2019 Dec 31, 2019 MCL Yes No 91.25 UG/L 0.080 mg/L - Resolved Dec 31, 2019 -
Oct 1, 2019 Dec 31, 2019 MCL Yes No 91.25 UG/L 0.080 mg/L - Resolved Dec 31, 2019 -
May 1, 2019 May 31, 2019 MON No Yes - - - Resolved May 31, 2019 -
May 1, 2019 May 31, 2019 MON No Yes - - - Resolved May 31, 2019 -
Jul 1, 2018 Sep 30, 2018 MCL Yes No .081 MG/L 0.080 mg/L .08 Resolved Sep 30, 2018 -
Jul 1, 2018 Sep 30, 2018 MCL Yes No .081 MG/L 0.080 mg/L .08 Resolved Sep 30, 2018 -
Apr 1, 2018 Jun 30, 2018 MCL Yes No .089 MG/L 0.080 mg/L .08 Resolved Jun 30, 2018 -
Apr 1, 2018 Jun 30, 2018 MCL Yes No .089 MG/L 0.080 mg/L .08 Resolved Jun 30, 2018 -
Jan 1, 2018 Mar 31, 2018 MCL Yes No .093 MG/L 0.080 mg/L .08 Resolved Mar 31, 2018 -
Jan 1, 2018 Mar 31, 2018 MCL Yes No .093 MG/L 0.080 mg/L .08 Resolved Mar 31, 2018 -
Oct 1, 2017 Dec 31, 2017 MCL Yes No .089 MG/L 0.080 mg/L .08 Resolved Dec 31, 2017 -
Oct 1, 2017 Dec 31, 2017 MCL Yes No .089 MG/L 0.080 mg/L .08 Resolved Dec 31, 2017 -
Oct 1, 2014 Dec 31, 2014 MCL Yes No .101 MG/L 0.080 mg/L .08 Resolved Dec 31, 2014 -
Oct 1, 2014 Dec 31, 2014 MCL Yes No .101 MG/L 0.080 mg/L .08 Resolved Dec 31, 2014 -
Oct 1, 2014 Dec 31, 2014 MCL Yes No .074 MG/L 0.060 mg/L .06 Resolved Dec 31, 2014 -
Oct 1, 2014 Dec 31, 2014 MCL Yes No .074 MG/L 0.060 mg/L .06 Resolved Dec 31, 2014 -
Jan 1, 2006 Jul 13, 2009 TT Yes No - - - Resolved Jul 13, 2009 -
Jan 1, 2006 Jul 13, 2009 TT Yes No - - - Resolved Jul 13, 2009 -
Jul 1, 1999 Jul 31, 1999 MR No No - - - Resolved Jul 31, 1999 -
Jul 1, 1999 Jul 31, 1999 MR No No - - - Resolved Jul 31, 1999 -
Jul 1, 1993 Mar 1, 2000 MR No No - TT - Resolved Mar 1, 2000 -
Sep 1, 1984 Sep 30, 1984 Other No No - - - Archived Sep 30, 1984 -
Aug 1, 1984 Aug 31, 1984 Other No No - - - Archived Aug 31, 1984 -
Jul 1, 1984 Jul 31, 1984 Other No No - - - Archived Jul 31, 1984 -
Jun 1, 1984 Jun 30, 1984 Other No No - - - Archived Jun 30, 1984 -
May 1, 1984 May 31, 1984 Other No No - - - Archived May 31, 1984 -
Apr 1, 1984 Apr 30, 1984 Other No No - - - Archived Apr 30, 1984 -
Mar 1, 1984 Mar 31, 1984 Other No No - - - Archived Mar 31, 1984 -
Feb 1, 1984 Feb 29, 1984 Other No No - - - Archived Feb 29, 1984 -
Jan 1, 1984 Jan 31, 1984 Other No No - - - Archived Jan 31, 1984 -
Dec 1, 1983 Dec 31, 1983 Other No No - - - Archived Dec 31, 1983 -
Nov 1, 1983 Nov 30, 1983 Other No No - - - Archived Nov 30, 1983 -
Oct 1, 1983 Oct 31, 1983 Other No No - - - Archived Oct 31, 1983 -
Sep 1, 1983 Sep 30, 1983 Other No No - - - Archived Sep 30, 1983 -

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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