Clean Water Act discharge permit · NPDES SCG360017
DUKE ENERGY CEDAR CREEK HYDRO STA, Great Falls, SC: NPDES SCG360017 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
DUKE ENERGY CEDAR CREEK HYDRO STA, held by DUKE ENERGY CAROLINAS LLC, holds NPDES permit SCG360017. EPA’s file records it issued January 1, 2026 and expiring January 31, 2031. 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 | DUKE ENERGY CEDAR CREEK HYDRO STA |
|---|---|
| Permittee as filed | DUKE ENERGY CAROLINAS LLC |
| NPDES ID | SCG360017 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | January 1, 2026 |
| Expiration date | January 31, 2031 |
| Issuing agency | State |
| Address | Great Falls, SC 29055 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Headwaters Lake Wateree-Catawba River (HUC 030501040106) |
| NAICS | 221111 – Hydroelectric Power Generation |
| 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
- 4Pollutants on file
- 0Under a numeric limit
- 4With 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 | 0 | 90 | 0 | ||
| Temperature, water deg. fahrenheit | 0 | 72 | 0 | ||
| Flow, in conduit or thru treatment plant | 0 | 36 | 0 | ||
| Oil and grease visual | 0 | 18 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES SCG360017.
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 SCG360017.
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, SCG360017.
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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 SCG360017 there.
Nearby on the register
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- Every permit record in South Carolina, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.