Clean Water Act discharge permit · NPDES SCR10ZH12
CHS RON APRON EXPANSION ALPHA EAST, N Charleston, SC: NPDES SCR10ZH12 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
CHS RON APRON EXPANSION ALPHA EAST, held by Nathan Yokoyama, holds NPDES permit SCR10ZH12. EPA’s file records it issued February 26, 2025 and expiring February 25, 2030. 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.
What the register holds for CHS RON APRON EXPANSION ALPHA EAST: its NPDES ID, its permit type and status, its dates, its address in N Charleston, South Carolina. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES SCR10ZH12.
Identity
| Facility as filed | CHS RON APRON EXPANSION ALPHA EAST |
|---|---|
| Permittee as filed | Nathan Yokoyama |
| NPDES ID | SCR10ZH12 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Construction stormwater |
| Issued | February 26, 2025 |
| Expiration date | February 25, 2030 |
| Issuing agency | State |
| Address | N Charleston, SC 29418 |
| Subwatershed | Lower Ashley River (HUC 030502010605) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES SCR10ZH12.
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 SCR10ZH12.
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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- One state — $4,990/year
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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 SCR10ZH12 there.
Nearby on the register
- Discharge permits in N Charleston
- Every permit record in N Charleston, 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.