UNION CITY
PWSID: OK3000909 · Union City, OK · Serves 618 people
According to EPA Safe Drinking Water Information System (SDWIS), UNION CITY (PWSID OK3000909) in Union City, OK is listed as a CWS water system covering about 618 people. The same extract lists 64 health-based violation records spanning 2014-2025. Those 64 health-based rows for UNION CITY cover contaminants such as TTHM; they remain historical EPA registry entries, not a current compliance or drinkability score.
UNION CITY has 64 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 1 distinct EPA contaminant code appears in this system's record, including TTHM. Recorded violations span 2014–2025. Day-to-day primacy enforcement for this system runs through the Oklahoma drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Oklahoma state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- OK3000909
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Union City, OK
- Population Served
- 618
- Health Violations
- Yes (64)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| TTHM | 64 | 64 |
Violation History (64)
| Contaminant | Health | Date |
|---|---|---|
| TTHM | Yes | Jan 1, 2025 |
| TTHM | Yes | Jan 1, 2025 |
| TTHM | Yes | Jan 1, 2025 |
| TTHM | Yes | Jan 1, 2025 |
| TTHM | Yes | Oct 1, 2024 |
| TTHM | Yes | Oct 1, 2024 |
| TTHM | Yes | Oct 1, 2024 |
| TTHM | Yes | Oct 1, 2024 |
| TTHM | Yes | Jul 1, 2024 |
| TTHM | Yes | Jul 1, 2024 |
| TTHM | Yes | Jul 1, 2024 |
| TTHM | Yes | Jul 1, 2024 |
| TTHM | Yes | Jul 1, 2024 |
| TTHM | Yes | Jul 1, 2024 |
| TTHM | Yes | Apr 1, 2024 |
| TTHM | Yes | Apr 1, 2024 |
| TTHM | Yes | Apr 1, 2024 |
| TTHM | Yes | Apr 1, 2024 |
| TTHM | Yes | Jan 1, 2024 |
| TTHM | Yes | Jan 1, 2024 |
| TTHM | Yes | Jan 1, 2024 |
| TTHM | Yes | Jan 1, 2024 |
| TTHM | Yes | Jan 1, 2024 |
| TTHM | Yes | Jan 1, 2024 |
| TTHM | Yes | Oct 1, 2023 |
| TTHM | Yes | Oct 1, 2023 |
| TTHM | Yes | Oct 1, 2023 |
| TTHM | Yes | Oct 1, 2023 |
| TTHM | Yes | Oct 1, 2023 |
| TTHM | Yes | Oct 1, 2023 |
| TTHM | Yes | Oct 1, 2023 |
| TTHM | Yes | Oct 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Jul 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Jan 1, 2023 |
| TTHM | Yes | Jan 1, 2023 |
| TTHM | Yes | Jan 1, 2023 |
| TTHM | Yes | Jan 1, 2023 |
| TTHM | Yes | Jan 1, 2023 |
| TTHM | Yes | Jan 1, 2023 |
| TTHM | Yes | Jan 1, 2023 |
| TTHM | Yes | Jan 1, 2023 |
| TTHM | Yes | Apr 1, 2015 |
| TTHM | Yes | Jan 1, 2015 |
| TTHM | Yes | Oct 1, 2014 |
| TTHM | Yes | Jul 1, 2014 |
| TTHM | Yes | Apr 1, 2014 |
| TTHM | Yes | Jan 1, 2014 |
Frequently Asked Questions
What does EPA SDWIS list for UNION CITY?
How many people does UNION CITY serve?
What violations does UNION CITY have?
What contaminants have been found in UNION CITY water?
Compare beyond Oklahoma
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest UNION CITY on cumulative violation count (64) and EPA-reported population served (618). Violation-count peers include KINGMAN WATER WORKS, REGINA MDWCA, CITY OF GRANITE SHOALS. Population peers include NEPENTHE WS, SIMLA TOWN OF, MOSSVILLE WW DISTRICT NO 2.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
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About This Data
UNION CITY (OK3000909) is drawn from EPA SDWIS. Nearby county systems in this extract include YUKON; MUSTANG, CITY OF; EL RENO; PIEDMONT MUNICIPAL AUTHORITY. Health-based rows (64 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.