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SANTA NELLA COUNTY WATER DISTRICT

California — Community Water System — PWSID: CA2410018

System Information

PWSIDCA2410018
System NameSANTA NELLA COUNTY WATER DISTRICT
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedDec 9, 1994
Last ReportedNov 17, 2025

Location & Contact

StateCalifornia
CitySANTA NELLA
ZIP Code95322
Address12931 SOUTH HWY 33
OrganizationMONTGOMERY, AMY
Phone209-826-0920

Population & Service

Population Served2,211
Service Connections671

Drinking Water Violations (38)

This water system has 38 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, 2014 Sep 30, 2014 TTHM MCL Yes No .082 MG/L 0.080 mg/L .08 Resolved Sep 30, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2014 Sep 30, 2014 TTHM MCL Yes No .082 MG/L 0.080 mg/L .08 Resolved Sep 30, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2011 Dec 31, 2011 CARBON, TOTAL TT Yes No — TT — Resolved Dec 31, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2011 Dec 31, 2011 CARBON, TOTAL TT Yes No — TT — Resolved Dec 31, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2010 Jun 30, 2010 TTHM MCL Yes No .0867 MG/L 0.080 mg/L .08 Resolved Jun 30, 2010 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2010 Jun 30, 2010 TTHM MCL Yes No .0867 MG/L 0.080 mg/L .08 Resolved Jun 30, 2010 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2010 Mar 31, 2010 TTHM MCL Yes No .0809 MG/L 0.080 mg/L .08 Resolved Mar 31, 2010 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2010 Mar 31, 2010 TTHM MCL Yes No .0809 MG/L 0.080 mg/L .08 Resolved Mar 31, 2010 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2009 Jun 30, 2009 TTHM MCL Yes No .0853 MG/L 0.080 mg/L .08 Resolved Jun 30, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2009 Jun 30, 2009 TTHM MCL Yes No .0853 MG/L 0.080 mg/L .08 Resolved Jun 30, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2009 Mar 31, 2009 TTHM MCL Yes No .094 MG/L 0.080 mg/L .08 Resolved Mar 31, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2009 Mar 31, 2009 TTHM MCL Yes No .094 MG/L 0.080 mg/L .08 Resolved Mar 31, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2008 Dec 31, 2008 TTHM MCL Yes No .103 MG/L 0.080 mg/L .08 Resolved Dec 31, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2008 Dec 31, 2008 TTHM MCL Yes No .103 MG/L 0.080 mg/L .08 Resolved Dec 31, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2008 Sep 30, 2008 TTHM MCL Yes No .1021 MG/L 0.080 mg/L .08 Resolved Sep 30, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2008 Sep 30, 2008 TTHM MCL Yes No .1021 MG/L 0.080 mg/L .08 Resolved Sep 30, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2008 Jun 30, 2008 TTHM MCL Yes No .0911 MG/L 0.080 mg/L .08 Resolved Jun 30, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2008 Jun 30, 2008 TTHM MCL Yes No .0911 MG/L 0.080 mg/L .08 Resolved Jun 30, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2008 Mar 31, 2008 TTHM MCL Yes No .0823 MG/L 0.080 mg/L .08 Resolved Mar 31, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2008 Jan 31, 2008 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2008 Total Coliform Rule
Jan 1, 2008 Mar 31, 2008 TTHM MCL Yes No .0823 MG/L 0.080 mg/L .08 Resolved Mar 31, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2008 Jan 31, 2008 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2008 Total Coliform Rule
Oct 1, 2004 Dec 31, 2004 TTHM MCL Yes No .086 MG/L 0.080 mg/L .08 Resolved Dec 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2004 Dec 31, 2004 TTHM MCL Yes No .086 MG/L 0.080 mg/L .08 Resolved Dec 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2004 Sep 30, 2004 TTHM MCL Yes No .0883 MG/L 0.080 mg/L .08 Resolved Sep 30, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2004 Sep 30, 2004 TTHM MCL Yes No .0883 MG/L 0.080 mg/L .08 Resolved Sep 30, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2004 Jun 30, 2004 TTHM MCL Yes No .0983 MG/L 0.080 mg/L .08 Resolved Jun 30, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2004 Jun 30, 2004 TTHM MCL Yes No .0983 MG/L 0.080 mg/L .08 Resolved Jun 30, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Mar 31, 2004 TTHM MCL Yes No .104 MG/L 0.080 mg/L .08 Resolved Mar 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Mar 31, 2004 TTHM MCL Yes No .104 MG/L 0.080 mg/L .08 Resolved Mar 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Mar 31, 2004 CARBON, TOTAL MR No Yes — TT — Resolved Mar 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Mar 31, 2004 CARBON, TOTAL MR No Yes — TT — Resolved Mar 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Mar 31, 2004 Total Haloacetic Acids (HAA5) MCL Yes No .061 MG/L 0.060 mg/L .06 Resolved Mar 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Mar 31, 2004 Total Haloacetic Acids (HAA5) MCL Yes No .061 MG/L 0.060 mg/L .06 Resolved Mar 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2001 Dec 31, 2007 Radium-228 MR No No — — — Resolved Dec 31, 2007 Radionuclides and Revised Rad Rule
Jan 1, 2001 Dec 31, 2007 Radium-228 MR No No — — — Resolved Dec 31, 2007 Radionuclides and Revised Rad Rule
Jan 2, 1996 — Lead and Copper Rule MR No No — TT — Resolved Sep 30, 2002 Lead and Copper Rule
Jan 2, 1996 — Lead and Copper Rule MR No No — TT — Resolved Sep 30, 2002 Lead and Copper 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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