Clean Water Act discharge permit · NPDES SC0048283
NUCOR STEEL SOUTH CAROLINA, Darlington, SC: NPDES SC0048283 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
NUCOR STEEL SOUTH CAROLINA holds NPDES permit SC0048283, which discharges to Lucas Creek. EPA’s file records it issued November 9, 2011 and expiring May 31, 2016. 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 | NUCOR STEEL SOUTH CAROLINA |
|---|---|
| Permittee as filed | NUCOR STEEL SOUTH CAROLINA |
| NPDES ID | SC0048283 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | November 9, 2011 |
| Expiration date | May 31, 2016 |
| Address | Darlington, SC 29540 |
| Receiving water | Lucas Creek |
| Subwatershed | Lucas Creek-Black Creek (HUC 030402010709) |
| NAICS | 331111 – Iron and Steel Mills [2007] |
| SIC | 1499 – Miscellaneous Nonmetallic Minerals |
| Other EPA IDs (FRS) | ICIS-AIR source SC00008200001 |
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
- 22Pollutants on file
- 11Under a numeric limit
- 20With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Lead, total [as Pb] | 6 | 10 | 4 | June 30, 2010 | 3,773% over the limit |
| Zinc, total [as Zn] | 6 | 10 | 4 | June 30, 2010 | 2,022% over the limit |
| Oil & Grease | 6 | 5 | 1 | March 31, 2010 | 16% over the limit |
| pH | 4 | 5 | 1 | May 31, 2012 | |
| Solids, total suspended | 6 | 6 | 0 | ||
| Flow, in conduit or thru treatment plant | 3 | 3 | 0 | ||
| Pass/Fail Static 48Hr Acute Ceriodaphnia dubia | 1 | 3 | 0 | ||
| BOD, 5-day, 20 deg. C | 6 | 2 | 0 | ||
| Oil and grease, hexane extr method | 0 | 2 | 0 | ||
| Nitrogen, organic total [as N] | 0 | 2 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 2 | 0 | ||
| Nitrogen, nitrite total [as N] | 0 | 2 | 0 | ||
| Nitrogen, nitrate total [as N] | 0 | 2 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 2 | 0 | ||
| Phosphorus, total [as P] | 0 | 2 | 0 | ||
| Magnesium, total [as Mg] | 0 | 2 | 0 | ||
| Sodium, total [as Na] | 0 | 2 | 0 | ||
| Potassium, total [as K] | 0 | 2 | 0 | ||
| Chlorine, total residual | 4 | 1 | 0 | ||
| Arsenic, total [as As] | 0 | 1 | 0 | ||
| Copper, total [as Cu] | 2 | 0 | 0 | ||
| %Effect 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 |
|---|---|---|
| November 4, 2020 | Monitoring Violations - Improper Analysis or Lab Error | 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, SC0048283.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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 SC0048283 there.
Nearby on the register
- Discharge permits in Darlington
- Every permit record in Darlington, 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.