Clean Water Act discharge permit · NPDES AR0047643
OPPELO, CITY OF - OPPELO MUNICIPAL SEWAGE TREATMENT PLANT, Oppelo, AR: NPDES AR0047643 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
OPPELO, CITY OF - OPPELO MUNICIPAL SEWAGE TREATMENT PLANT, held by OPPELO, CITY OF, holds NPDES permit AR0047643, which discharges to Trib,Cypress Cr,Arkansas R. EPA’s file records it issued December 27, 2016 and expiring December 31, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | OPPELO, CITY OF - OPPELO MUNICIPAL SEWAGE TREATMENT PLANT |
|---|---|
| Permittee as filed | OPPELO, CITY OF |
| NPDES ID | AR0047643 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | December 27, 2016 |
| Expiration date | December 31, 2021 |
| Address | Oppelo, AR 72110 |
| Receiving water | TRIB,CYPRESS CR,ARKANSAS R |
| Subwatershed | Outlet Rocky Cypress Creek (HUC 111102030502) |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 11Pollutants on file
- 11Under a numeric limit
- 11With a violation of any kind
- 7With 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 | 6 | 113 | 50 | July 31, 2026 | 1,732% over the limit |
| Coliform, fecal general | 6 | 86 | 44 | July 31, 2026 | 99,999% over the limit |
| Nitrogen, ammonia total [as N] | 9 | 67 | 41 | July 31, 2020 | 1,062% over the limit |
| Oxygen, dissolved [DO] | 3 | 38 | 17 | July 31, 2026 | 77% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 6 | 29 | 4 | September 30, 2009 | 146% over the limit |
| pH | 4 | 44 | 2 | October 31, 2016 | |
| BOD, 5-day, 20 deg. C | 3 | 38 | 2 | June 30, 2025 | 20% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 39 | 0 | ||
| Overflows | 2 | 7 | 0 | ||
| Overflow volume [SS0 volume, CSO volume] | 2 | 7 | 0 | ||
| Chlorine, total residual | 1 | 6 | 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 AR0047643.
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 AR0047643 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.