UNION CITY, OK · Canadian County
UNION CITY Water System
Consumer Confidence Report status
UNION CITY must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for UNION CITY.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Oklahoma’s official records. Always confirm current status with Oklahoma before making decisions based on this information.
System facts
- System ID (PWSID)
- OK3000909
- System type
- Community Water System
- Population served
- 618
- Service connections
- 262
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
UNION CITY is one of 511 community water systems in Oklahoma in the 501 to 3,300 people size category, serving 618 people from surface water.
As of August 1, 2026, its federal record holds 4 entries between 2023 and 2025, all of which EPA lists as closed.
None of the 4 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Stage 2 Disinfectants and Disinfection Byproducts Rule.
Violation history
Maximum Contaminant Level Violation, Average
Health-basedTTHM
January 1, 2025 – March 31, 2025
ArchivedMaximum Contaminant Level Violation, Average
Health-basedTTHM
July 1, 2024 – September 30, 2024
ArchivedMaximum Contaminant Level Violation, Average
Health-basedTTHM
April 1, 2023 – June 30, 2023
ArchivedMaximum Contaminant Level Violation, Average
Health-basedTTHM
January 1, 2023 – March 31, 2023
Archived
Archived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| January 1, 2025 – March 31, 2025 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Archived |
| July 1, 2024 – September 30, 2024 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Archived |
| April 1, 2023 – June 30, 2023 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Archived |
| January 1, 2023 – March 31, 2023 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Archived |
Archived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- December 7, 2015State Violation/Reminder Notice665 linked violations
Common questions
Is UNION CITY required to publish a Consumer Confidence Report?
- Yes. UNION CITY is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is UNION CITY’s next Consumer Confidence Report due?
- UNION CITY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does UNION CITY have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for UNION CITY.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
UNION CITY
405-483-5509
UNION CITY, OK 73090