Clean Water Act discharge permit · NPDES ARR158979
SOUTHWESTERN ELECTRIC POWER COMPANY - UMPIRE TO DIERKS STATION, Dierks, AR: NPDES ARR158979 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
SOUTHWESTERN ELECTRIC POWER COMPANY - UMPIRE TO DIERKS STATION, held by Southwestern Electric Power Company, holds NPDES permit ARR158979. EPA’s file records it issued February 18, 2026 and expiring October 31, 2026. 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.
What the register holds for SOUTHWESTERN ELECTRIC POWER COMPANY - UMPIRE TO DIERKS STATION: its NPDES ID, its permit type and status, its dates, its address in Dierks, Arkansas. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES ARR158979.
Identity
| Facility as filed | SOUTHWESTERN ELECTRIC POWER COMPANY - UMPIRE TO DIERKS STATION |
|---|---|
| Permittee as filed | Southwestern Electric Power Company |
| NPDES ID | ARR158979 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Construction stormwater |
| Issued | February 18, 2026 |
| Expiration date | October 31, 2026 |
| Issuing agency | Arkansas Energy & Environment |
| Address | Dierks, AR 71833 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Holly Creek (HUC 111401090801) |
| NAICS | 221121 – Electric Bulk Power Transmission and Control |
| SIC | 4911 – Electric Services |
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
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES ARR158979.
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 ARR158979.
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 ARR158979 there.
Nearby on the register
- Discharge permits in Dierks
- Every permit record in Dierks, A to Z
- Discharge permits in Arkansas
- Every permit record in Arkansas, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.