Clean Water Act discharge permit · NPDES SD0026361
USCOE - BIG BEND DAM, Fort Thompson, SD: NPDES SD0026361 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
USCOE - BIG BEND DAM, held by USCOE - Big Bend Dam, holds NPDES permit SD0026361, which discharges to Lake Francis Case - Missouri River. EPA’s file records it issued December 1, 2018 and expiring September 30, 2023. 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 | USCOE - BIG BEND DAM |
|---|---|
| Permittee as filed | USCOE - Big Bend Dam |
| NPDES ID | SD0026361 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Federal facility |
| Program | Publicly owned treatment works |
| Issued | December 1, 2018 |
| Expiration date | September 30, 2023 |
| Issuing agency | SDDANR |
| Address | Fort Thompson, SD 57325 |
| Receiving water | LAKE FRANCIS CASE - MISSOURI RIVER |
| Subwatershed | Town of Lower Brule-Missouri River (HUC 101401010507) |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
| Other EPA IDs (FRS) | RCRA handler SD0000196733 |
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
- 9Pollutants on file
- 6Under a numeric limit
- 9With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| pH | 2 | 274 | 0 | ||
| Temperature, water deg. centigrade | 2 | 106 | 0 | ||
| Floating solids, waste or visible foam-visual | 1 | 53 | 0 | ||
| Oil and grease visual | 1 | 53 | 0 | ||
| Flow | 0 | 32 | 0 | ||
| Hydrocarbons, petroleum | 0 | 32 | 0 | ||
| Flow rate | 1 | 21 | 0 | ||
| Hydrocarbons, total petroleum | 0 | 18 | 0 | ||
| Oil and grease, hexane extr method | 1 | 9 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES SD0026361.
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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| February 11, 2026 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, SD0026361.
Start the watch
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- One watershed — $2,990/year
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How we handle your data → Privacy
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 SD0026361 there.
Nearby on the register
- Discharge permits in Fort Thompson
- Every permit record in Fort Thompson, A to Z
- Discharge permits in South Dakota
- Every permit record in South Dakota, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.