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BIG BASIN WATER COMPANY

California — Community Water System — PWSID: CA4410001

System Information

PWSIDCA4410001
System NameBIG BASIN WATER COMPANY
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedMar 22, 1979
Last ReportedNov 17, 2025

Location & Contact

StateCalifornia
CityIRVINE
ZIP Code92606
Address3 Corporate Park #100
OrganizationJABER, NICOLAS
Phone949-200-6726

Population & Service

Population Served1,120
Service Connections540

Drinking Water Violations (99)

This water system has 99 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
Jun 1, 2022 Jun 30, 2022 Revised Total Coliform Rule MON No No — — — Resolved Jun 30, 2022 Revised Total Coliform Rule
Jun 1, 2022 Jun 30, 2022 Revised Total Coliform Rule MON No No — — — Resolved Jun 30, 2022 Revised Total Coliform Rule
Jan 1, 2022 Mar 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Mar 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Mar 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Mar 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2021 Dec 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2021 Revised Total Coliform Rule
Oct 1, 2021 Dec 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2021 Revised Total Coliform Rule
Jul 1, 2021 Sep 30, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2021 Sep 30, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2021 Sep 30, 2021 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2021 Sep 30, 2021 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2021 Jun 30, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2021 Jun 30, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2021 Jun 30, 2021 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2021 Jun 30, 2021 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Mar 31, 2021 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Mar 31, 2021 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Mar 31, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Mar 31, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Dec 31, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Dec 31, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Dec 31, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Dec 31, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Sep 30, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Sep 30, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Sep 30, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Sep 30, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Dec 31, 2020 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2020 Arsenic Rule
Jan 1, 2018 Dec 31, 2018 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2018 Nitrate Rule
Jan 1, 2018 Dec 31, 2018 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2018 Nitrate Rule
Jan 1, 2018 Dec 31, 2020 Simazine MR No Yes — 0.004 mg/L — Resolved Dec 31, 2020 Synthetic Organic Chemicals
Jan 1, 2018 Dec 31, 2020 Simazine MR No Yes — 0.004 mg/L — Resolved Dec 31, 2020 Synthetic Organic Chemicals
Jan 1, 2018 Dec 31, 2020 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2020 Arsenic Rule
Jan 1, 2018 Dec 31, 2020 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2020 Nitrate Rule
Jan 1, 2018 Dec 31, 2020 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2020 Nitrate Rule
Feb 1, 2005 Feb 28, 2005 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Feb 28, 2005 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2005 Feb 28, 2005 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Feb 28, 2005 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jan 1, 2005 Mar 31, 2005 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2005 Jan 31, 2005 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 2005 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jan 1, 2005 Jan 31, 2005 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 2005 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2004 Dec 31, 2004 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2004 Sep 30, 2004 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2004 Total Coliform Rule
Sep 1, 2004 Sep 30, 2004 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2004 Total Coliform Rule
Sep 1, 2004 Sep 30, 2004 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2004 Total Coliform Rule
Jun 1, 2004 Jun 30, 2004 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jun 30, 2004 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jun 1, 2004 Jun 30, 2004 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jun 30, 2004 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2004 May 31, 2004 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved May 31, 2004 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2004 May 31, 2004 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved May 31, 2004 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2004 Apr 30, 2004 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Apr 30, 2004 Interim and Long Term 1 Enhanced Surface Water Treatment 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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