Clean Water Act discharge permit · NPDES OK0038393
UNION CITY WWT FACILITY, Union City, OK: NPDES OK0038393 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
UNION CITY WWT FACILITY, held by Union City Municipal Authority, holds NPDES permit OK0038393, which discharges to 520610 Trib/ S Canadian R. EPA’s file records it issued June 21, 2021 and expiring July 31, 2026. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | UNION CITY WWT FACILITY |
|---|---|
| Permittee as filed | Union City Municipal Authority |
| NPDES ID | OK0038393 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | June 21, 2021 |
| Expiration date | July 31, 2026 |
| Issuing agency | ODEQ |
| Address | Union City, OK 73090 |
| Receiving water | 520610 trib/ S Canadian R |
| Subwatershed | Arapaho Creek-Canadian River (HUC 110902020107) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 6Pollutants on file
- 5Under a numeric limit
- 6With a violation of any kind
- 5With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 3 | 80 | 54 | April 30, 2025 | 236% over the limit |
| Solids, total suspended | 3 | 59 | 33 | April 30, 2026 | 101% over the limit |
| E. coli | 2 | 21 | 11 | April 30, 2025 | 182% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 42 | 6 | June 30, 2019 | 2,147,483,650% over the limit |
| pH | 2 | 24 | 4 | April 30, 2026 | |
| Chlorine, total residual | 0 | 1 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 1, 2019 | Effluent Violations - Unauthorized Discharge | ST6 |
| May 1, 2019 | Effluent Violations - Unauthorized Discharge | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, OK0038393.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID OK0038393 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.