Clean Water Act discharge permit · NPDES ARG550506
OSCEOLA DOCK TERMINAL, Osceola, AR: NPDES ARG550506 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
OSCEOLA DOCK TERMINAL, held by TMS International Ozark Services, LLC, holds NPDES permit ARG550506, which discharges to Mississippi R. EPA’s file records it issued October 3, 2018 and expiring June 30, 2024. 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 | OSCEOLA DOCK TERMINAL |
|---|---|
| Permittee as filed | TMS International Ozark Services, LLC |
| NPDES ID | ARG550506 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | October 3, 2018 |
| Expiration date | June 30, 2024 |
| Address | Osceola, AR 72370 |
| Receiving water | Mississippi R |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Fletcher Towhead-Mississippi River (HUC 080101000604) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 6Pollutants on file
- 6Under a numeric limit
- 6With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 2 | 33 | 25 | December 31, 2025 | 2,060% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 31 | 23 | December 31, 2025 | 2,990% over the limit |
| Coliform, fecal general | 2 | 26 | 16 | December 31, 2025 | 99,999% over the limit |
| Oxygen, dissolved [DO] | 1 | 14 | 9 | December 31, 2025 | 83% over the limit |
| pH | 2 | 10 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 10 | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES ARG550506.
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
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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 ARG550506 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.