Clean Water Act discharge permit · NPDES SCR10ZDWW
CENTRAL TIE SUBSTATION UPGRADES, N/A, SC: NPDES SCR10ZDWW discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
CENTRAL TIE SUBSTATION UPGRADES, held by Darrin Cardwell, holds NPDES permit SCR10ZDWW. EPA’s file records it issued October 18, 2023 and expiring October 17, 2028. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
What the register holds for CENTRAL TIE SUBSTATION UPGRADES: its NPDES ID, its permit type and status, its dates, its address in N/A, South Carolina. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES SCR10ZDWW.
Identity
| Facility as filed | CENTRAL TIE SUBSTATION UPGRADES |
|---|---|
| Permittee as filed | Darrin Cardwell |
| NPDES ID | SCR10ZDWW |
| 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 | October 18, 2023 |
| Expiration date | October 17, 2028 |
| Issuing agency | State |
| Address | N/A, SC 29630 |
| Subwatershed | Lower Twelvemile Creek-Keowee River (HUC 030601010408) |
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 SCR10ZDWW.
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 SCR10ZDWW.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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, SCR10ZDWW.
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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 SCR10ZDWW there.
Nearby on the register
- Discharge permits in N/A
- Every permit record in N/A, 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 September 14, 2026.