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HANFORD, CITY OF

California — Community Water System — PWSID: CA1610003

System Information

PWSIDCA1610003
System NameHANFORD, CITY OF
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedMar 22, 1979
Last ReportedMar 20, 2026

Location & Contact

StateCalifornia
CityHANFORD
ZIP Code93230
Address900 S. 10TH AVENUE
OrganizationSENTENO, FRANK
Phone559-585-2567

Population & Service

Population Served62,127
Service Connections19,077

Drinking Water Violations (454)

This water system has 454 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
Oct 1, 2023 — MR No No — TT — Resolved Aug 8, 2024 —
Oct 1, 2023 — MR No No — TT — Resolved Aug 8, 2024 —
Apr 1, 2021 Jun 30, 2021 MCL Yes No .082 MG/L 0.080 mg/L .08 Resolved Jun 30, 2021 —
Apr 1, 2021 Jun 30, 2021 MCL Yes No .082 MG/L 0.080 mg/L .08 Resolved Jun 30, 2021 —
Jan 1, 2021 Mar 31, 2021 MCL Yes No .086 MG/L 0.080 mg/L .08 Resolved Mar 31, 2021 —
Jan 1, 2021 Mar 31, 2021 MCL Yes No .086 MG/L 0.080 mg/L .08 Resolved Mar 31, 2021 —
Oct 1, 2020 Dec 31, 2020 MCL Yes No .086 MG/L 0.080 mg/L .08 Resolved Dec 31, 2020 —
Oct 1, 2020 Dec 31, 2020 MCL Yes No .086 MG/L 0.080 mg/L .08 Resolved Dec 31, 2020 —
Jul 1, 2020 Sep 30, 2020 MCL Yes No .085 MG/L 0.080 mg/L .08 Resolved Sep 30, 2020 —
Jul 1, 2020 Sep 30, 2020 MCL Yes No .085 MG/L 0.080 mg/L .08 Resolved Sep 30, 2020 —
Oct 1, 2014 Oct 31, 2014 MCL Yes No — 5% of samples — Resolved Oct 31, 2014 —
Oct 1, 2014 Oct 31, 2014 MCL Yes No — 5% of samples — Resolved Oct 31, 2014 —
Sep 1, 2014 Sep 30, 2014 MCL Yes No — 5% of samples — Resolved Sep 30, 2014 —
Sep 1, 2014 Sep 30, 2014 MCL Yes No — 5% of samples — Resolved Sep 30, 2014 —
Aug 1, 2014 Aug 31, 2014 MCL Yes No — 5% of samples — Resolved Aug 31, 2014 —
Aug 1, 2014 Aug 31, 2014 MCL Yes No — 5% of samples — Resolved Aug 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 —
Jun 1, 2014 Jun 30, 2014 MCL Yes No — 5% of samples — Resolved Jun 30, 2014 —
Jun 1, 2014 Jun 30, 2014 MCL Yes No — 5% of samples — Resolved Jun 30, 2014 —
Jan 1, 2014 Dec 31, 2014 MR No Yes — 10 mg/L — Resolved Dec 31, 2014 —
Jan 1, 2014 Dec 31, 2014 MR No Yes — 10 mg/L — Resolved Dec 31, 2014 —
Jan 1, 2014 Dec 31, 2014 MR No Yes — 10 mg/L — Resolved Dec 31, 2014 —
Dec 1, 2012 Dec 31, 2012 MCL Yes No — 5% of samples — Resolved Dec 31, 2012 —
Dec 1, 2012 Dec 31, 2012 MCL Yes No — 5% of samples — Resolved Dec 31, 2012 —
Oct 1, 2009 Oct 31, 2009 MCL Yes No — 5% of samples — Resolved Oct 31, 2009 —
Oct 1, 2009 Oct 31, 2009 MCL Yes No — 5% of samples — Resolved Oct 31, 2009 —
Jul 1, 2009 Sep 30, 2009 MCL Yes No .0469 MG/L 0.010 mg/L .01 Resolved Sep 30, 2009 —
Jul 1, 2009 Sep 30, 2009 MCL Yes No .0469 MG/L 0.010 mg/L .01 Resolved Sep 30, 2009 —
Jul 1, 2009 Sep 30, 2009 MCL Yes No .0469 MG/L 0.010 mg/L .01 Resolved Sep 30, 2009 —
Apr 1, 2009 Jun 30, 2009 MCL Yes No .0543 MG/L 0.010 mg/L .01 Resolved Jun 30, 2009 —
Apr 1, 2009 Jun 30, 2009 MCL Yes No .0543 MG/L 0.010 mg/L .01 Resolved Jun 30, 2009 —
Apr 1, 2009 Jun 30, 2009 MCL Yes No .0543 MG/L 0.010 mg/L .01 Resolved Jun 30, 2009 —
Jan 1, 2009 Mar 31, 2009 MCL Yes No .0529 MG/L 0.010 mg/L .01 Resolved Mar 31, 2009 —
Jan 1, 2009 Mar 31, 2009 MCL Yes No .0529 MG/L 0.010 mg/L .01 Resolved Mar 31, 2009 —
Jan 1, 2009 Mar 31, 2009 MCL Yes No .0529 MG/L 0.010 mg/L .01 Resolved Mar 31, 2009 —
Oct 1, 2008 Dec 31, 2008 MCL Yes No .052 MG/L 0.010 mg/L .01 Resolved Dec 31, 2008 —
Oct 1, 2008 Dec 31, 2008 MCL Yes No .052 MG/L 0.010 mg/L .01 Resolved Dec 31, 2008 —
Oct 1, 2008 Dec 31, 2008 MCL Yes No .052 MG/L 0.010 mg/L .01 Resolved Dec 31, 2008 —
Jul 1, 2008 Sep 30, 2008 MCL Yes No .052 MG/L 0.010 mg/L .01 Resolved Sep 30, 2008 —
Jul 1, 2008 Sep 30, 2008 MCL Yes No .052 MG/L 0.010 mg/L .01 Resolved Sep 30, 2008 —
Jul 1, 2008 Sep 30, 2008 MCL Yes No .052 MG/L 0.010 mg/L .01 Resolved Sep 30, 2008 —
Apr 1, 2008 Jun 30, 2008 MCL Yes No .05375 MG/L 0.010 mg/L .01 Resolved Jun 30, 2008 —
Apr 1, 2008 Jun 30, 2008 MCL Yes No .05375 MG/L 0.010 mg/L .01 Resolved Jun 30, 2008 —
Apr 1, 2008 Jun 30, 2008 MCL Yes No .05375 MG/L 0.010 mg/L .01 Resolved Jun 30, 2008 —
Jan 1, 2008 Mar 31, 2008 MCL Yes No .055 MG/L 0.010 mg/L .01 Resolved Mar 31, 2008 —
Jan 1, 2008 Mar 31, 2008 MCL Yes No .055 MG/L 0.010 mg/L .01 Resolved Mar 31, 2008 —
Jan 1, 2008 Mar 31, 2008 MCL Yes No .055 MG/L 0.010 mg/L .01 Resolved Mar 31, 2008 —
Oct 1, 2007 Dec 31, 2007 MCL Yes No .0607 MG/L 0.010 mg/L .01 Resolved Dec 31, 2007 —
Oct 1, 2007 Dec 31, 2007 MCL Yes No .0607 MG/L 0.010 mg/L .01 Resolved Dec 31, 2007 —

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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