Clean Water Act discharge permit · NPDES SCG360002
US ARMY ST STEPHEN POWER PLANT, St Stephen, SC: NPDES SCG360002 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
US ARMY ST STEPHEN POWER PLANT, held by US ARMY CORPS OF ENGINEERS, holds NPDES permit SCG360002. EPA’s file records it issued May 15, 2015 and expiring June 30, 2020. 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 | US ARMY ST STEPHEN POWER PLANT |
|---|---|
| Permittee as filed | US ARMY CORPS OF ENGINEERS |
| NPDES ID | SCG360002 |
| 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 | Federal facility |
| Issued | May 15, 2015 |
| Expiration date | June 30, 2020 |
| Issuing agency | State |
| Address | St Stephen, SC 29479 |
| Subwatershed | Rediversion Canal-Santee River (HUC 030501120105) |
| NAICS | 221111 – Hydroelectric Power Generation |
| SIC | 4911 – Electric Services |
| Other EPA IDs (FRS) | RCRA handler SC7210800002 |
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
- 5Pollutants on file
- 5Under a numeric limit
- 5With a violation of any kind
- 3With 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 |
|---|---|---|---|---|---|
| Oil & Grease | 2 | 37 | 9 | September 30, 2025 | 210% over the limit |
| pH | 10 | 147 | 2 | March 31, 2024 | |
| Temperature, water deg. fahrenheit | 8 | 118 | 2 | September 30, 2024 | 6% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 58 | 0 | ||
| Oil and grease visual | 2 | 28 | 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 SCG360002.
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, SCG360002.
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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 SCG360002 there.
Nearby on the register
- Discharge permits in St Stephen
- Every permit record in St Stephen, A to Z
- Discharge permits in South Carolina
- Every permit record in South Carolina, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.