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IMPERIAL, CITY OF

California — Community Water System — PWSID: CA1310006

System Information

PWSIDCA1310006
System NameIMPERIAL, CITY OF
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedMar 22, 1979
Last ReportedNov 17, 2025

Location & Contact

StateCalifornia
CityIMPERIAL
ZIP Code92251
Address201 South B Street
OrganizationVIESCA, FERNANDO
Phone760-355-1152

Population & Service

Population Served21,591
Service Connections6,939

Drinking Water Violations (36)

This water system has 36 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 17, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Unaddressed — Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Unaddressed — Lead and Copper Rule Revisions
Jul 1, 2024 — Consumer Confidence Rule Other No No — — — Resolved Jul 15, 2024 Consumer Confidence Rule
Jul 1, 2024 — Consumer Confidence Rule Other No No — — — Resolved Jul 15, 2024 Consumer Confidence Rule
May 1, 2018 May 31, 2018 Surface Water Treatment Rule TT Yes No — — — Resolved May 31, 2018 Surface Water Treatment Rule
May 1, 2018 May 31, 2018 Surface Water Treatment Rule TT Yes No — — — Resolved May 31, 2018 Surface Water Treatment Rule
Oct 1, 2017 Dec 31, 2017 TTHM MCL Yes No .095 MG/L 0.080 mg/L .08 Resolved Dec 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2017 Dec 31, 2017 TTHM MCL Yes No .095 MG/L 0.080 mg/L .08 Resolved Dec 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2017 Sep 30, 2017 TTHM MCL Yes No .097 MG/L 0.080 mg/L .08 Resolved Sep 30, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2017 Sep 30, 2017 TTHM MCL Yes No .097 MG/L 0.080 mg/L .08 Resolved Sep 30, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2017 — Long Term 2 Enhanced Surface Water Treatment Rule MR No No — — — Resolved Sep 17, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Jul 1, 2017 — Long Term 2 Enhanced Surface Water Treatment Rule MR No No — — — Resolved Sep 17, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Apr 1, 2017 Jun 30, 2017 TTHM MCL Yes No .089 MG/L 0.080 mg/L .08 Resolved Jun 30, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2017 Jun 30, 2017 TTHM MCL Yes No .089 MG/L 0.080 mg/L .08 Resolved Jun 30, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 TTHM MCL Yes No .089 MG/L 0.080 mg/L .08 Resolved Mar 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 TTHM MCL Yes No .089 MG/L 0.080 mg/L .08 Resolved Mar 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 31, 2016 — Public Notice Other No No — — — Resolved May 11, 2017 Public Notice Rule and Revised PN Rule
Oct 31, 2016 — Public Notice Other No No — — — Resolved May 11, 2017 Public Notice Rule and Revised PN Rule
Oct 1, 2016 Dec 31, 2016 TTHM MCL Yes No .093 MG/L 0.080 mg/L .08 Resolved Dec 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2016 Dec 31, 2016 TTHM MCL Yes No .093 MG/L 0.080 mg/L .08 Resolved Dec 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2016 Sep 30, 2016 TTHM MCL Yes No .086 MG/L 0.080 mg/L .08 Resolved Sep 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2016 Sep 30, 2016 TTHM MCL Yes No .086 MG/L 0.080 mg/L .08 Resolved Sep 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2009 Sep 30, 2009 TTHM MCL Yes No .082 MG/L 0.080 mg/L .08 Resolved Sep 30, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2009 Sep 30, 2009 TTHM MCL Yes No .082 MG/L 0.080 mg/L .08 Resolved Sep 30, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2009 Jun 30, 2009 TTHM MCL Yes No .088 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 .088 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 .086 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 .086 MG/L 0.080 mg/L .08 Resolved Mar 31, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2005 Dec 31, 2005 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2005 Dec 31, 2005 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2005 Dec 31, 2005 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2005 Dec 31, 2005 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
May 1, 2002 May 31, 2002 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2002 Total Coliform Rule
May 1, 2002 May 31, 2002 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2002 Total Coliform Rule
Oct 1, 2001 — Lead and Copper Rule MR No No — TT — Resolved Aug 31, 2004 Lead and Copper Rule
Oct 1, 2001 — Lead and Copper Rule MR No No — TT — Resolved Aug 31, 2004 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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