Clean Water Act discharge permit · NPDES SC0037401
SCPSA (SANTEE COOPER)/CROSS GENERATING STATION, Pineville, SC: NPDES SC0037401 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 16Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
SCPSA (SANTEE COOPER)/CROSS GENERATING STATION, held by South Carolina Public Service Authority (Santee Cooper), holds NPDES permit SC0037401. EPA’s file records it issued March 25, 2024 and expiring February 28, 2029. 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 | SCPSA (SANTEE COOPER)/CROSS GENERATING STATION |
|---|---|
| Permittee as filed | South Carolina Public Service Authority (Santee Cooper) |
| NPDES ID | SC0037401 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | March 25, 2024 |
| Expiration date | February 28, 2029 |
| Issuing agency | State |
| Address | Pineville, SC 29468 |
| Subwatershed | Lake Moultrie (HUC 030502010101) |
| NAICS | 221112 – Fossil Fuel Electric Power Generation |
| SIC | 4911 – Electric Services |
| Other EPA IDs (FRS) | RCRA handler SCD982125957; ICIS-AIR source SC00004200030 |
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
- 23Pollutants on file
- 16Under a numeric limit
- 19With 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 |
|---|---|---|---|---|---|
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 188 | 2 | August 31, 2025 | 33% over the limit |
| Oil and grease, hexane extr method | 0 | 161 | 1 | August 31, 2022 | 63% over the limit |
| E. coli | 2 | 1 | 1 | June 30, 2025 | 76% over the limit |
| Flow, in conduit or thru treatment plant | 14 | 929 | 0 | ||
| pH | 8 | 898 | 0 | ||
| Chlorine, free available | 10 | 716 | 0 | ||
| Zinc, total [as Zn] | 0 | 712 | 0 | ||
| Chromium, total [as Cr] | 0 | 532 | 0 | ||
| Length of longest pH excursion | 3 | 356 | 0 | ||
| % of time exceeding pH limits | 0 | 356 | 0 | ||
| Solids, total suspended | 4 | 346 | 0 | ||
| Mercury, total [as Hg] | 2 | 341 | 0 | ||
| Temperature, water deg. fahrenheit | 3 | 276 | 0 | ||
| BOD, 5-day, 20 deg. C | 2 | 186 | 0 | ||
| Chlorine, total residual | 2 | 186 | 0 | ||
| Coliform, fecal general | 0 | 186 | 0 | ||
| %Mortality 7Day Chronic Ceriodaphnia dubia | 0 | 186 | 0 | ||
| %Repro Reduc Static Renewal7D Chronic Ceriodaphnia dubia | 0 | 186 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 93 | 0 | ||
| pH range excursions, monthly total accum | 3 | 0 | 0 | ||
| Oil & Grease | 2 | 0 | 0 | ||
| LC50 Static 48Hr Acute Ceriodaphnia dubia | 1 | 0 | 0 | ||
| IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | 1 | 0 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 15, 2025 | Effluent Violations - Unapproved Bypass | 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
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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 SC0037401 there.
Nearby on the register
- Discharge permits in Pineville
- Every permit record in Pineville, 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.