Clean Water Act discharge permit · NPDES SCG730186
HANSON AGGREGREGATES SE LLC/COLUMBIA SAND MINE, Gaston, SC: NPDES SCG730186 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 3Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
HANSON AGGREGREGATES SE LLC/COLUMBIA SAND MINE, held by HANSON AGGREGATES SOUTHEAST LLC, holds NPDES permit SCG730186. EPA’s file records it issued September 29, 2017 and expiring December 31, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | HANSON AGGREGREGATES SE LLC/COLUMBIA SAND MINE |
|---|---|
| Permittee as filed | HANSON AGGREGATES SOUTHEAST LLC |
| NPDES ID | SCG730186 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 29, 2017 |
| Expiration date | December 31, 2022 |
| Issuing agency | State |
| Address | Gaston, SC 29053 |
| Subwatershed | First Creek (HUC 030501100103) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 3Pollutants on file
- 3Under a numeric limit
- 2With a violation of any kind
- 2With 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 | 15 | 15 | July 31, 2026 | |
| Solids, total suspended | 2 | 4 | 4 | September 30, 2024 | 253% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 17, 2026 | Management Practice Violations - Best Management Practice Deficiencies | ST6 |
| July 17, 2026 | Management Practice Violations - Failure to Maintain Records | 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.
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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 SCG730186 there.
Nearby on the register
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- Every permit record in Gaston, A to Z
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- Every permit record in South Carolina, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.