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MADISON SERVICE DIST

California — Community Water System — PWSID: CA5700571

System Information

PWSIDCA5700571
System NameMADISON SERVICE DIST
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
CityMADISON
ZIP Code95653
AddressP O BOX 40
Organization_REFSLAND, LEO
Phone530-383-4049

Population & Service

Population Served876
Service Connections149

Drinking Water Violations (50)

This water system has 50 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
Mar 1, 2024 Mar 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Mar 31, 2024 Revised Total Coliform Rule
Mar 1, 2024 Mar 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Mar 31, 2024 Revised Total Coliform Rule
Jan 1, 2020 Dec 31, 2020 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2020 Nitrate Rule
Jan 1, 2020 Dec 31, 2020 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2020 Nitrate Rule
Jan 1, 2020 Dec 31, 2020 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2020 Nitrate Rule
Jan 1, 2020 Dec 31, 2020 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2020 Nitrate Rule
Feb 1, 2018 Feb 28, 2018 Revised Total Coliform Rule MON No Yes — — — Resolved Feb 28, 2018 Revised Total Coliform Rule
Feb 1, 2018 Feb 28, 2018 Revised Total Coliform Rule MON No Yes — — — Resolved Feb 28, 2018 Revised Total Coliform Rule
Jan 1, 2018 Dec 31, 2018 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Dec 31, 2018 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Dec 31, 2018 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Dec 31, 2018 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2017 — Lead and Copper Rule MR No No — TT — Resolved Jan 17, 2020 Lead and Copper Rule
Oct 1, 2017 — Lead and Copper Rule MR No No — TT — Resolved Jan 17, 2020 Lead and Copper Rule
Jun 1, 2017 Jun 30, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2017 Revised Total Coliform Rule
Jun 1, 2017 Jun 30, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2017 Revised Total Coliform Rule
Jun 1, 2017 Jun 30, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2017 Revised Total Coliform Rule
Jun 1, 2017 Jun 30, 2017 COLIPHAGE MR No Yes — — — Resolved Jun 30, 2017 Ground Water Rule
Jun 1, 2017 Jun 30, 2017 COLIPHAGE MR No Yes — — — Resolved Jun 30, 2017 Ground Water Rule
Oct 1, 2016 — Lead and Copper Rule MR No No — TT — Resolved May 2, 2017 Lead and Copper Rule
Jan 1, 2014 Dec 31, 2014 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2014 Nitrate Rule
Jan 1, 2014 Dec 31, 2014 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2014 Nitrate Rule
Jun 1, 2009 Jun 30, 2009 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jun 19, 2009 Total Coliform Rule
Jun 1, 2009 Jun 30, 2009 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jun 19, 2009 Total Coliform Rule
Jun 1, 2009 Jun 30, 2009 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jun 19, 2009 Total Coliform Rule
Jun 1, 2009 Jun 30, 2009 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jun 19, 2009 Total Coliform Rule
Aug 1, 2008 Jul 31, 2017 Asbestos MR No Yes — 7 MFL — Resolved Jul 31, 2017 Inorganic Chemicals
Aug 1, 2008 Jul 31, 2017 Asbestos MR No Yes — 7 MFL — Resolved Jul 31, 2017 Inorganic Chemicals
Nov 1, 2002 Nov 30, 2002 Nitrate MCL Yes No 46000 MG/L 10 mg/L 45 Resolved Nov 30, 2002 Nitrate Rule
Nov 1, 2002 Nov 30, 2002 Nitrate MCL Yes No 46000 MG/L 10 mg/L 45 Resolved Nov 30, 2002 Nitrate Rule
Nov 1, 2002 Nov 30, 2002 Nitrate MCL Yes No 46000 MG/L 10 mg/L 45 Resolved Nov 30, 2002 Nitrate Rule
Oct 1, 2002 Dec 31, 2002 Nitrate MCL Yes No 46000 MG/L 10 mg/L 45 Resolved Sep 1, 2002 Nitrate Rule
Oct 1, 2002 Dec 31, 2002 Nitrate MCL Yes No 46000 MG/L 10 mg/L 45 Resolved Sep 1, 2002 Nitrate Rule
Oct 1, 2002 Dec 31, 2002 Nitrate MCL Yes No 46000 MG/L 10 mg/L 45 Resolved Sep 1, 2002 Nitrate Rule
Oct 1, 2002 Dec 31, 2002 Nitrate MCL Yes No 46000 MG/L 10 mg/L 45 Resolved Sep 1, 2002 Nitrate Rule
Oct 1, 2002 Dec 31, 2002 Nitrate MCL Yes No 46000 MG/L 10 mg/L 45 Resolved Sep 1, 2002 Nitrate Rule
Oct 1, 2002 Dec 31, 2002 Nitrate MCL Yes No 46000 MG/L 10 mg/L 45 Resolved Sep 1, 2002 Nitrate Rule
Sep 1, 2002 Sep 30, 2002 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 1, 2002 Total Coliform Rule
Sep 1, 2002 Sep 30, 2002 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 1, 2002 Total Coliform Rule
Sep 1, 2002 Sep 30, 2002 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 1, 2002 Total Coliform Rule
Mar 1, 1998 Mar 31, 1998 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Mar 31, 1998 Total Coliform Rule
Mar 1, 1998 Mar 31, 1998 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Mar 31, 1998 Total Coliform Rule
Sep 1, 1984 Sep 30, 1984 Other No No — — — Archived Sep 30, 1984 Miscellaneous Other Rules
Aug 1, 1984 Aug 31, 1984 Other No No — — — Archived Aug 31, 1984 Miscellaneous Other Rules
Jul 1, 1984 Jul 31, 1984 Other No No — — — Archived Jul 31, 1984 Miscellaneous Other Rules
Apr 1, 1983 Apr 30, 1983 Other No No — — — Archived Apr 30, 1983 Miscellaneous Other Rules
Oct 1, 1981 Sep 30, 1982 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Archived Sep 30, 1982 Radionuclides and Revised Rad Rule
Oct 30, 1980 Oct 29, 1981 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Archived Oct 29, 1981 Radionuclides and Revised Rad 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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