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MCFARLAND, CITY OF

California — Community Water System — PWSID: CA1510013

System Information

PWSIDCA1510013
System NameMCFARLAND, CITY OF
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedMar 22, 1979
Last ReportedNov 17, 2025

Location & Contact

StateCalifornia
CityMCFARLAND
ZIP Code93250
Address401 WEST KERN AVENUE
OrganizationHERNANDEZ, YERLYS
Phone661-444-0813

Population & Service

Population Served14,161
Service Connections2,849

Drinking Water Violations (155)

This water system has 155 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
Aug 1, 2023 Aug 31, 2023 Nitrate MCL Yes No 11 MG/L 10 mg/L 10 Archived Aug 31, 2023 Nitrate Rule
Oct 1, 2021 — Lead and Copper Rule MR No No — TT — Addressed — Lead and Copper Rule
Dec 1, 2020 — E. COLI MR No Yes — — — Resolved Jan 5, 2021 Ground Water Rule
Dec 1, 2020 — E. COLI MR No Yes — — — Resolved Jan 5, 2021 Ground Water Rule
Apr 1, 2019 Apr 30, 2019 Revised Total Coliform Rule MON No No — — — Resolved Apr 30, 2019 Revised Total Coliform Rule
Apr 1, 2019 Apr 30, 2019 Revised Total Coliform Rule MON No No — — — Resolved Apr 30, 2019 Revised Total Coliform Rule
Jan 1, 2017 Dec 31, 2017 Nitrate-Nitrite MR No No — — — Resolved Dec 31, 2017 Nitrate Rule
Jan 1, 2017 Dec 31, 2017 Nitrate-Nitrite MR No No — — — Resolved Dec 31, 2017 Nitrate Rule
Jan 1, 2017 Mar 31, 2017 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2016 Dec 31, 2016 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2016 Dec 31, 2016 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2016 Dec 31, 2016 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2016 Dec 31, 2016 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2016 Sep 30, 2016 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2016 Sep 30, 2016 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2016 Sep 30, 2016 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2016 Sep 30, 2016 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Mar 1, 2016 Mar 31, 2016 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Mar 31, 2016 Total Coliform Rule
Mar 1, 2016 Mar 31, 2016 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Mar 31, 2016 Total Coliform Rule
Oct 1, 2013 Dec 31, 2013 TTHM MR No No — 0.080 mg/L — Resolved Dec 31, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Dec 31, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Dec 31, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Dec 31, 2013 TTHM MR No No — 0.080 mg/L — Resolved Dec 31, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2013 Mar 31, 2013 Arsenic MCL Yes No .012 MG/L 0.010 mg/L .01 Resolved Mar 31, 2013 Arsenic Rule
Jan 1, 2013 Mar 31, 2013 Arsenic MCL Yes No .012 MG/L 0.010 mg/L .01 Resolved Mar 31, 2013 Arsenic Rule
Jan 1, 2013 Dec 31, 2013 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2013 Nitrate Rule
Jan 1, 2013 Dec 31, 2013 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2013 Nitrate Rule
Dec 1, 2012 Dec 31, 2012 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Dec 31, 2012 Total Coliform Rule
Dec 1, 2012 Dec 31, 2012 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Dec 31, 2012 Total Coliform Rule
Oct 1, 2012 Dec 31, 2012 Arsenic MCL Yes No .0127 MG/L 0.010 mg/L .01 Resolved Dec 31, 2012 Arsenic Rule
Oct 1, 2012 Dec 31, 2012 Arsenic MCL Yes No .0127 MG/L 0.010 mg/L .01 Resolved Dec 31, 2012 Arsenic Rule
Aug 1, 2012 Aug 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2012 Total Coliform Rule
Aug 1, 2012 Aug 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2012 Total Coliform Rule
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Jul 1, 2012 Sep 30, 2012 Arsenic MR No Yes — 0.010 mg/L — Resolved Sep 30, 2012 Arsenic Rule
Jul 1, 2012 Sep 30, 2012 Arsenic MR No Yes — 0.010 mg/L — Resolved Sep 30, 2012 Arsenic Rule
Apr 1, 2012 Jun 30, 2012 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Jun 30, 2012 Arsenic Rule
Apr 1, 2012 Jun 30, 2012 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Jun 30, 2012 Arsenic Rule
Feb 1, 2012 Feb 29, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Feb 29, 2012 Total Coliform Rule
Feb 1, 2012 Feb 29, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Feb 29, 2012 Total Coliform Rule
Jan 1, 2012 Mar 31, 2012 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Mar 31, 2012 Arsenic Rule
Jan 1, 2012 Mar 31, 2012 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Mar 31, 2012 Arsenic 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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