UNION CITY

Oklahoma — Community Water System — PWSID: OK3000909

System Information

PWSIDOK3000909
System NameUNION CITY
System TypeCommunity Water System
Water SourceGUP
Activity StatusActive
Owner TypeLocal
EPA Region06
Serves SchoolNo
WholesalerNo
First ReportedJan 12, 1996
Last ReportedNov 14, 2025

Location & Contact

StateOklahoma
CityUNION CITY
ZIP Code73090
AddressThe Honorable Bob McGregor, Mayor
OrganizationUNION CITY
Phone405-483-5509

Population & Service

Population Served618
Service Connections262

Drinking Water Violations (139)

This water system has 139 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, 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
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 .081 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 .081 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 .081 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 .081 MG/L 0.080 mg/L .08 Archived Mar 31, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Dec 30, 2024 TTHM MR No No 0.080 mg/L Resolved Apr 10, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Dec 30, 2024 TTHM MR No No 0.080 mg/L Resolved Apr 10, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 TTHM MCL Yes No .082 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 .082 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 .082 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 .082 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
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
Jul 1, 2024 Sep 30, 2024 TTHM MCL Yes No .099 MG/L 0.080 mg/L .08 Archived Sep 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Sep 30, 2024 TTHM MCL Yes No .099 MG/L 0.080 mg/L .08 Archived Sep 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Sep 30, 2024 TTHM MCL Yes No .099 MG/L 0.080 mg/L .08 Archived Sep 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Sep 30, 2024 TTHM MCL Yes No .099 MG/L 0.080 mg/L .08 Archived Sep 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Sep 30, 2024 TTHM MCL Yes No .094 MG/L 0.080 mg/L .08 Archived Sep 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Sep 30, 2024 TTHM MCL Yes No .094 MG/L 0.080 mg/L .08 Archived Sep 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Sep 30, 2024 TTHM MCL Yes No .094 MG/L 0.080 mg/L .08 Archived Sep 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Sep 30, 2024 TTHM MCL Yes No .094 MG/L 0.080 mg/L .08 Archived Sep 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2024 Jun 30, 2024 Chlorine MR No Yes 4.0 mg/L Resolved Jun 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2024 Jun 30, 2024 Chlorine MR No Yes 4.0 mg/L Resolved Jun 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2024 Jun 30, 2024 Chlorine MR No Yes 4.0 mg/L Resolved Jun 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2024 Jun 30, 2024 Chlorine MR No Yes 4.0 mg/L Resolved Jun 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Jun 30, 2024 TTHM MCL Yes No .089 MG/L 0.080 mg/L .08 Archived Jun 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Jun 30, 2024 TTHM MCL Yes No .095 MG/L 0.080 mg/L .08 Archived Jun 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Jun 30, 2024 TTHM MCL Yes No .095 MG/L 0.080 mg/L .08 Archived Jun 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Jun 30, 2024 TTHM MCL Yes No .095 MG/L 0.080 mg/L .08 Archived Jun 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Jun 30, 2024 TTHM MCL Yes No .095 MG/L 0.080 mg/L .08 Archived Jun 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Jun 30, 2024 TTHM MCL Yes No .089 MG/L 0.080 mg/L .08 Archived Jun 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Jun 30, 2024 TTHM MCL Yes No .089 MG/L 0.080 mg/L .08 Archived Jun 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Jun 30, 2024 TTHM MCL Yes No .089 MG/L 0.080 mg/L .08 Archived Jun 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 TTHM MCL Yes No .09 MG/L 0.080 mg/L .08 Archived Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 TTHM MCL Yes No .093 MG/L 0.080 mg/L .08 Archived Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 TTHM MCL Yes No .093 MG/L 0.080 mg/L .08 Archived Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 TTHM MCL Yes No .093 MG/L 0.080 mg/L .08 Archived Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 TTHM MCL Yes No .093 MG/L 0.080 mg/L .08 Archived Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 TTHM MCL Yes No .09 MG/L 0.080 mg/L .08 Archived Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 TTHM MCL Yes No .09 MG/L 0.080 mg/L .08 Archived Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 TTHM MCL Yes No .09 MG/L 0.080 mg/L .08 Archived Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 TTHM MCL Yes No .097 MG/L 0.080 mg/L .08 Archived Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 TTHM MCL Yes No .1 MG/L 0.080 mg/L .08 Archived Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 TTHM MCL Yes No .097 MG/L 0.080 mg/L .08 Archived Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 TTHM MCL Yes No .097 MG/L 0.080 mg/L .08 Archived Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts 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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