Clean Water Act discharge permit · NPDES SCG646084
WALHALLA WTP, Walhalla, SC: NPDES SCG646084 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
WALHALLA WTP, held by WALHALLA CITY OF, holds NPDES permit SCG646084. EPA’s file records it issued October 28, 2019 and expiring December 30, 2020. 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 | WALHALLA WTP |
|---|---|
| Permittee as filed | WALHALLA CITY OF |
| NPDES ID | SCG646084 |
| 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 | October 28, 2019 |
| Expiration date | December 30, 2020 |
| Issuing agency | State |
| Address | Walhalla, SC 29691 |
| Subwatershed | Middle Coneross Creek (HUC 030601010502) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 9Pollutants on file
- 9Under a numeric limit
- 9With 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 | 4 | 124 | 2 | November 30, 2023 | 993% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 228 | 0 | ||
| pH | 4 | 184 | 0 | ||
| Phosphorus, total [as P] | 4 | 104 | 0 | ||
| Iron, total [as Fe] | 2 | 70 | 0 | ||
| Manganese, total [as Mn] | 2 | 70 | 0 | ||
| Chlorine, total residual | 2 | 70 | 0 | ||
| Aluminum, total [as Al] | 2 | 6 | 0 | ||
| Pass/Fail Static 48Hr Acute Ceriodaphnia dubia | 1 | 2 | 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 21, 2022 | Management Practice Violations - Best Management Practice Deficiencies | 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 SCG646084 there.
Nearby on the register
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- Every permit record in Walhalla, 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 15, 2026.