Clean Water Act discharge permit · NPDES ARG550314
ENTERGY ARKANSAS-HOT SPRINGS PLANT, Malvern, AR: NPDES ARG550314 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
ENTERGY ARKANSAS-HOT SPRINGS PLANT, held by ENTERGY ARKANSAS, INC.-HOT SPRING PLANT, holds NPDES permit ARG550314, which discharges to Ouachita River. EPA’s file records it issued June 30, 2009 and expiring June 30, 2014. 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 | ENTERGY ARKANSAS-HOT SPRINGS PLANT |
|---|---|
| Permittee as filed | ENTERGY ARKANSAS, INC.-HOT SPRING PLANT |
| NPDES ID | ARG550314 |
| 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 | June 30, 2009 |
| Expiration date | June 30, 2014 |
| Address | Malvern, AR 72104 |
| Receiving water | OUACHITA RIVER |
| Subwatershed | Black Branch (HUC 080401020105) |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
| Other EPA IDs (FRS) | RCRA handler ARR000010272; ICIS-AIR source AR0000000505900229 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 6Pollutants on file
- 6Under a numeric limit
- 6With a violation of any kind
- 6With 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 | 4 | 7 | 7 | December 31, 2013 | 1,513% over the limit |
| Solids, total suspended | 4 | 2 | 2 | December 31, 2010 | 107% over the limit |
| Coliform, fecal general | 4 | 2 | 2 | December 31, 2010 | 8% over the limit |
| Oxygen, dissolved [DO] | 2 | 2 | 2 | June 30, 2014 | 52% over the limit |
| pH | 4 | 1 | 1 | December 31, 2010 | |
| Flow, in conduit or thru treatment plant | 4 | 1 | 1 | December 31, 2010 | 250% over the limit |
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 ARG550314.
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 ARG550314 there.
Nearby on the register
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- Every permit record in Arkansas, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.