Clean Water Act discharge permit · NPDES AR0050431
SOUTH SEBASTIAN COUNTY & BLACKSTONE RANCH WW TREATMENT BOARD - BLACKSTONE RANCH, Fort Smith, AR: NPDES AR0050431 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
SOUTH SEBASTIAN COUNTY & BLACKSTONE RANCH WW TREATMENT BOARD - BLACKSTONE RANCH, held by SEBASTIAN COUNTY & BLACKSTONE RANCH WASTEWATER TREATMENT BOARD, holds NPDES permit AR0050431, which discharges to Cedar Cr,Poteau Rv,Arkansas Rv. EPA’s file records it issued January 4, 2017 and expiring January 31, 2022. 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 | SOUTH SEBASTIAN COUNTY & BLACKSTONE RANCH WW TREATMENT BOARD - BLACKSTONE RANCH |
|---|---|
| Permittee as filed | SEBASTIAN COUNTY & BLACKSTONE RANCH WASTEWATER TREATMENT BOARD |
| NPDES ID | AR0050431 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | January 4, 2017 |
| Expiration date | January 31, 2022 |
| Address | Fort Smith, AR 72916 |
| Receiving water | CEDAR CR,POTEAU RV,ARKANSAS RV |
| Subwatershed | Cedar Creek-Poteau River (HUC 111101050904) |
| 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
- 10Pollutants on file
- 9Under a numeric limit
- 10With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 9 | 225 | 172 | July 31, 2025 | 9,420% over the limit |
| Coliform, fecal general | 2 | 67 | 38 | July 31, 2025 | 99,999% over the limit |
| Oxygen, dissolved [DO] | 2 | 45 | 33 | October 31, 2025 | 99,999% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 6 | 74 | 17 | October 31, 2024 | 378% over the limit |
| Oil & Grease | 0 | 38 | 6 | November 30, 2013 | 81% over the limit |
| pH | 2 | 35 | 6 | September 30, 2014 | |
| Solids, total suspended | 3 | 55 | 2 | February 29, 2016 | 13% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 31 | 0 | ||
| Overflows | 1 | 6 | 0 | ||
| Overflow volume [SS0 volume, CSO volume] | 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 AR0050431.
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 AR0050431 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.