Clean Water Act discharge permit · NPDES SCG646005
WEST COLUMBIA CITY OF WTP, West Columbia, SC: NPDES SCG646005 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
WEST COLUMBIA CITY OF WTP, held by WEST COLUMBIA CITY OF, holds NPDES permit SCG646005. EPA’s file records it issued December 2, 2015 and expiring December 30, 2020. 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 | WEST COLUMBIA CITY OF WTP |
|---|---|
| Permittee as filed | WEST COLUMBIA CITY OF |
| NPDES ID | SCG646005 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | December 2, 2015 |
| Expiration date | December 30, 2020 |
| Issuing agency | State |
| Address | West Columbia, SC 29169 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Upper Congaree River (HUC 030501100301) |
| SIC | 4941 – Water Supply |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 6Pollutants on file
- 5Under a numeric limit
- 6With a violation of any kind
- 1With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 2 | 118 | 2 | June 30, 2017 | 367% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 215 | 0 | ||
| pH | 2 | 116 | 0 | ||
| Chlorine, total residual | 2 | 86 | 0 | ||
| Phosphorus, total [as P] | 2 | 82 | 0 | ||
| Aluminum, total [as Al] | 0 | 82 | 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 |
|---|---|---|
| June 13, 2024 | 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
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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 SCG646005 there.
Nearby on the register
- Discharge permits in West Columbia
- Every permit record in West Columbia, 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.