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CITY OF SEGUIN

Texas — Community Water System — PWSID: TX0940002

System Information

PWSIDTX0940002
System NameCITY OF SEGUIN
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region06
Serves SchoolNo
WholesalerYes
First ReportedMar 14, 1980
Last ReportedJan 6, 2026

Location & Contact

StateTexas
CitySEGUIN
ZIP Code78156-0591
AddressPO BOX 591
OrganizationDODGEN, DONNA
Phone830-401-2307

Population & Service

Population Served32,736
Service Connections10,912

Drinking Water Violations (43)

This water system has 43 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 1, 2024 Dec 31, 2024 TTHM MCL Yes No .083 MG/L 0.080 mg/L .08 Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 TTHM MCL Yes No .083 MG/L 0.080 mg/L .08 Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 TTHM MCL Yes No .083 MG/L 0.080 mg/L .08 Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 TTHM MCL Yes No .083 MG/L 0.080 mg/L .08 Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 TTHM MCL Yes No .09 MG/L 0.080 mg/L .08 Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 TTHM MCL Yes No .09 MG/L 0.080 mg/L .08 Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 TTHM MCL Yes No .09 MG/L 0.080 mg/L .08 Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 TTHM MCL Yes No .09 MG/L 0.080 mg/L .08 Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2016 Mar 31, 2016 TTHM MCL Yes No .081 MG/L 0.080 mg/L .08 Resolved Mar 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2016 Mar 31, 2016 TTHM MCL Yes No .081 MG/L 0.080 mg/L .08 Resolved Mar 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2016 Mar 31, 2016 TTHM MCL Yes No .081 MG/L 0.080 mg/L .08 Resolved Mar 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2016 Mar 31, 2016 TTHM MCL Yes No .081 MG/L 0.080 mg/L .08 Resolved Mar 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015 Dec 31, 2015 Total Haloacetic Acids (HAA5) MCL Yes No .062 MG/L 0.060 mg/L .06 Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015 Dec 31, 2015 Total Haloacetic Acids (HAA5) MCL Yes No .062 MG/L 0.060 mg/L .06 Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015 Dec 31, 2015 Total Haloacetic Acids (HAA5) MCL Yes No .062 MG/L 0.060 mg/L .06 Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015 Dec 31, 2015 Total Haloacetic Acids (HAA5) MCL Yes No .062 MG/L 0.060 mg/L .06 Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Dec 30, 2013 — Lead and Copper Rule MR No No — TT — Resolved Dec 21, 2015 Lead and Copper Rule
Dec 1, 2004 Dec 31, 2004 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2004 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2004 Dec 31, 2004 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2004 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2004 Dec 31, 2004 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2004 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2004 Oct 31, 2004 Surface Water Treatment Rule TT Yes No — — — Resolved Oct 31, 2004 Surface Water Treatment Rule
Sep 1, 2004 Sep 30, 2004 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Sep 30, 2004 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Sep 1, 2004 Sep 30, 2004 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Sep 30, 2004 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Sep 1, 2004 Sep 30, 2004 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Sep 30, 2004 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Sep 1, 2004 Sep 30, 2004 Surface Water Treatment Rule TT Yes No — — — Resolved Sep 30, 2004 Surface Water Treatment Rule
Aug 1, 2004 Aug 31, 2004 Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2004 Surface Water Treatment Rule
Aug 1, 2004 Aug 31, 2004 Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2004 Surface Water Treatment Rule
Aug 1, 2004 Aug 31, 2004 Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2004 Surface Water Treatment Rule
Aug 1, 2004 Aug 31, 2004 Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2004 Surface Water Treatment Rule
Aug 1, 2004 Aug 31, 2004 Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2004 Surface Water Treatment Rule
Aug 1, 2004 Aug 31, 2004 Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2004 Surface Water Treatment Rule
Aug 1, 2004 Aug 31, 2004 Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2004 Surface Water Treatment Rule
Aug 1, 2004 Aug 31, 2004 Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2004 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
Jan 1, 2004 Jan 31, 2004 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 2004 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2003 Dec 31, 2003 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2003 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jan 1, 2003 Jan 31, 2003 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 2003 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jan 1, 2003 Jan 31, 2003 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 2003 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 1998 Dec 31, 1998 TTHM MCL Yes No .1086 MG/L 0.080 mg/L — Resolved Dec 31, 1998 Former Total Trihalomethane Rule
Oct 1, 1998 Dec 31, 1998 TTHM MCL Yes No .1086 MG/L 0.080 mg/L — Resolved Dec 31, 1998 Former Total Trihalomethane Rule
Oct 1, 1998 Dec 31, 1998 TTHM MCL Yes No .1086 MG/L 0.080 mg/L — Resolved Dec 31, 1998 Former Total Trihalomethane Rule
— — — No No — — — — — —
— — — 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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