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UNION PUBLIC UTILITY DISTRICT

California — Community Water System — PWSID: CA0510001

System Information

PWSIDCA0510001
System NameUNION PUBLIC UTILITY DISTRICT
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedMar 22, 1979
Last ReportedNov 17, 2025

Location & Contact

StateCalifornia
CityMURPHYS
ZIP Code95247
Address339 MAIN STREET
OrganizationSELF, JESSICA
Phone209-728-3651

Population & Service

Population Served4,774
Service Connections1,735

Drinking Water Violations (25)

This water system has 25 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
Jan 1, 2021 Mar 31, 2021 TTHM MCL Yes No .089 MG/L 0.080 mg/L .08 Resolved Mar 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Mar 31, 2021 TTHM MCL Yes No .089 MG/L 0.080 mg/L .08 Resolved Mar 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Mar 31, 2021 TTHM MCL Yes No .088 MG/L 0.080 mg/L .01 Resolved Mar 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Mar 31, 2021 TTHM MCL Yes No .088 MG/L 0.080 mg/L .01 Resolved Mar 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Dec 31, 2020 TTHM MCL Yes No .091 MG/L 0.080 mg/L .08 Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Dec 31, 2020 TTHM MCL Yes No .09 MG/L 0.080 mg/L .08 Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Dec 31, 2020 TTHM MCL Yes No .09 MG/L 0.080 mg/L .08 Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Dec 31, 2020 TTHM MCL Yes No .091 MG/L 0.080 mg/L .08 Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2020 Jun 30, 2020 TTHM MCL Yes No .082 MG/L 0.080 mg/L .08 Resolved Jun 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2020 Jun 30, 2020 TTHM MCL Yes No .082 MG/L 0.080 mg/L .08 Resolved Jun 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2006 Mar 31, 2006 Total Haloacetic Acids (HAA5) MCL Yes No .0643 MG/L 0.060 mg/L .06 Resolved Mar 31, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2005 Dec 31, 2005 Total Haloacetic Acids (HAA5) MCL Yes No .0839 MG/L 0.060 mg/L .06 Resolved Dec 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2005 Sep 30, 2005 Total Haloacetic Acids (HAA5) MCL Yes No .0908 MG/L 0.060 mg/L .06 Resolved Sep 30, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2005 Jun 30, 2005 Total Haloacetic Acids (HAA5) MCL Yes No .1008 MG/L 0.060 mg/L .06 Resolved Jun 30, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2005 Mar 31, 2005 Total Haloacetic Acids (HAA5) MCL Yes No .0868 MG/L 0.060 mg/L .06 Resolved Mar 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2004 Dec 31, 2004 Total Haloacetic Acids (HAA5) MCL Yes No .1073 MG/L 0.060 mg/L .06 Resolved Dec 31, 2004 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2001 — Consumer Confidence Rule Other No No — — — Resolved Nov 21, 2001 Consumer Confidence Rule
Jul 1, 2001 — Consumer Confidence Rule Other No No — — — Resolved Nov 21, 2001 Consumer Confidence Rule
Jul 1, 2001 — Consumer Confidence Rule Other No No — — — Resolved Nov 21, 2001 Consumer Confidence Rule
Oct 1, 1987 Oct 31, 1987 Nitrate MR No Yes — 10 mg/L — Archived Oct 31, 1987 Nitrate Rule
Oct 1, 1987 Oct 31, 1987 Arsenic MR No Yes — 0.010 mg/L — Archived Oct 31, 1987 Arsenic Rule
Oct 1, 1987 Oct 31, 1987 Fluoride MR No Yes — 4.0 mg/L — Archived Oct 31, 1987 Inorganic Chemicals
Oct 1, 1987 Oct 31, 1987 Other No No — — — Archived Oct 31, 1987 Miscellaneous Other Rules
Oct 1, 1987 Oct 31, 1987 Selenium MR No Yes — 0.05 mg/L — Archived Oct 31, 1987 Inorganic Chemicals
— — — No No — — — — — —

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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