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PATTERSON WATER SYSTEM

Louisiana — Community Water System — PWSID: LA1101006

System Information

PWSIDLA1101006
System NamePATTERSON WATER SYSTEM
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region06
Serves SchoolNo
WholesalerNo
First ReportedMar 6, 1980
Last ReportedNov 14, 2025

Location & Contact

StateLouisiana
CityPATTERSON
ZIP Code70392
AddressCity Hall (Patterson Water System)
OrganizationGROGAN, RODNEY
Phone985-395-5205

Population & Service

Population Served8,456
Service Connections2,591

Drinking Water Violations (49)

This water system has 49 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
Jul 1, 2025 Sep 30, 2025 TTHM MCL Yes No .083 MG/L 0.080 mg/L .08 Archived Sep 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2025 Sep 30, 2025 TTHM MCL Yes No .083 MG/L 0.080 mg/L .08 Archived Sep 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2025 Sep 30, 2025 TTHM MCL Yes No .083 MG/L 0.080 mg/L .08 Archived Sep 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 29, 2025 — Public Notice Other No No — — — Resolved Aug 20, 2025 Public Notice Rule and Revised PN Rule
Apr 1, 2025 Jun 30, 2025 TTHM MCL Yes No .082 MG/L 0.080 mg/L .08 Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Jun 30, 2025 TTHM MCL Yes No .082 MG/L 0.080 mg/L .08 Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Jun 30, 2025 TTHM MCL Yes No .082 MG/L 0.080 mg/L .08 Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2025 Mar 31, 2025 TTHM MCL Yes No .082 MG/L 0.080 mg/L .08 Archived Mar 31, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2025 Mar 31, 2025 TTHM MCL Yes No .082 MG/L 0.080 mg/L .08 Archived Mar 31, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2025 Mar 31, 2025 TTHM MCL Yes No .082 MG/L 0.080 mg/L .08 Archived Mar 31, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 TTHM MCL Yes No .081 MG/L 0.080 mg/L .08 Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 TTHM MCL Yes No .081 MG/L 0.080 mg/L .08 Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 TTHM MCL Yes No .081 MG/L 0.080 mg/L .08 Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2010 Feb 28, 2010 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Feb 28, 2010 Total Coliform Rule
Feb 1, 2010 Feb 28, 2010 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Feb 28, 2010 Total Coliform Rule
Feb 1, 2010 Feb 28, 2010 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Feb 28, 2010 Total Coliform Rule
Feb 1, 2010 Feb 28, 2010 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Feb 28, 2010 Total Coliform Rule
Jan 1, 2010 Jan 31, 2010 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jan 31, 2010 Total Coliform Rule
Jan 1, 2010 Jan 31, 2010 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jan 31, 2010 Total Coliform Rule
Jan 1, 2010 Jan 31, 2010 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jan 31, 2010 Total Coliform Rule
Jan 1, 2010 Jan 31, 2010 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jan 31, 2010 Total Coliform Rule
Jul 1, 2008 — Consumer Confidence Rule Other No No — — — Resolved Jan 16, 2009 Consumer Confidence Rule
Jul 1, 2008 — Consumer Confidence Rule Other No No — — — Resolved Jan 16, 2009 Consumer Confidence Rule
Jul 1, 2004 — Consumer Confidence Rule Other No No — — — Resolved Jul 22, 2005 Consumer Confidence Rule
Jul 1, 2004 — Consumer Confidence Rule Other No No — — — Resolved Jul 22, 2005 Consumer Confidence Rule
Sep 15, 2000 Oct 14, 2000 Coliform (TCR) MCL Yes No — 5% of samples — Archived Oct 14, 2000 Total Coliform Rule
Sep 15, 2000 Oct 14, 2000 Coliform (TCR) MCL Yes No — 5% of samples — Archived Oct 14, 2000 Total Coliform Rule
Sep 15, 2000 Oct 14, 2000 Coliform (TCR) MCL Yes No — 5% of samples — Archived Oct 14, 2000 Total Coliform Rule
Nov 1, 1994 Nov 30, 1994 Surface Water Treatment Rule TT Yes No — — — Archived Nov 30, 1994 Surface Water Treatment Rule
Nov 1, 1994 Nov 30, 1994 Surface Water Treatment Rule TT Yes No — — — Archived Nov 30, 1994 Surface Water Treatment Rule
Apr 1, 1994 Apr 30, 1994 Surface Water Treatment Rule TT Yes No — — — Archived Apr 30, 1994 Surface Water Treatment Rule
Apr 1, 1994 Apr 30, 1994 Surface Water Treatment Rule TT Yes No — — — Archived Apr 30, 1994 Surface Water Treatment Rule
Apr 1, 1994 Apr 30, 1994 Surface Water Treatment Rule TT Yes No — — — Archived Apr 30, 1994 Surface Water Treatment Rule
Jan 1, 1994 Jan 31, 1994 Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 1994 Surface Water Treatment Rule
Jan 1, 1994 Jan 31, 1994 Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 1994 Surface Water Treatment Rule
Jan 1, 1994 Jan 31, 1994 Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 1994 Surface Water Treatment Rule
Jan 1, 1994 Jan 31, 1994 Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 1994 Surface Water Treatment Rule
Jan 1, 1994 Jan 31, 1994 Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 1994 Surface Water Treatment Rule
Jan 1, 1994 Jan 31, 1994 Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 1994 Surface Water Treatment Rule
Jan 1, 1994 Jan 31, 1994 Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 1994 Surface Water Treatment Rule
Jan 1, 1994 Jan 31, 1994 Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 1994 Surface Water Treatment Rule
Jan 1, 1994 Jan 31, 1994 Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 1994 Surface Water Treatment Rule
Dec 1, 1993 Dec 31, 1993 Surface Water Treatment Rule TT Yes No — — — Archived Dec 31, 1993 Surface Water Treatment Rule
Dec 1, 1993 Dec 31, 1993 Surface Water Treatment Rule TT Yes No — — — Archived Dec 31, 1993 Surface Water Treatment Rule
Jul 1, 1993 Jul 31, 1993 Surface Water Treatment Rule TT Yes No — — — Archived Jul 31, 1993 Surface Water Treatment Rule
Jul 1, 1993 Jul 31, 1993 Surface Water Treatment Rule TT Yes No — — — Archived Jul 31, 1993 Surface Water Treatment Rule
Jul 1, 1992 Feb 15, 1993 Lead and Copper Rule MR No No — TT — Resolved Feb 15, 1993 Lead and Copper Rule
Jul 1, 1992 Feb 15, 1993 Lead and Copper Rule MR No No — TT — Resolved Feb 15, 1993 Lead and Copper Rule
— — — 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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