Clean Water Act discharge permit · NPDES SC0024457
AIKEN PSA HORSE CREEK WWTF, Beech Island, SC: NPDES SC0024457 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 17Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
AIKEN PSA HORSE CREEK WWTF, held by AIKEN COUNTY PUBLIC SERVICE AUTHORITY, holds NPDES permit SC0024457. EPA’s file records it issued December 1, 2025 and expiring December 31, 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.
Identity
| Facility as filed | AIKEN PSA HORSE CREEK WWTF |
|---|---|
| Permittee as filed | AIKEN COUNTY PUBLIC SERVICE AUTHORITY |
| NPDES ID | SC0024457 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | December 1, 2025 |
| Expiration date | December 31, 2030 |
| Issuing agency | State |
| Address | Beech Island, SC 29842 |
| Subwatershed | Beaverdam Ditch-Savannah River (HUC 030601060607) |
| Program components on file | Biosolids, POTW, Pretreatment |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
| Other EPA IDs (FRS) | RCRA handler SCD980842454 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 20Pollutants on file
- 17Under a numeric limit
- 17With a violation of any kind
- 10With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 8 | 30 | 14 | August 31, 2019 | 95% over the limit |
| E. coli | 4 | 8 | 8 | November 30, 2019 | 593% over the limit |
| BOD, 5-day, 20 deg. C | 8 | 19 | 3 | May 31, 2017 | 24% over the limit |
| Coliform, fecal general | 0 | 9 | 3 | May 31, 2014 | 99,999% over the limit |
| Solids, suspended percent removal | 1 | 7 | 3 | February 28, 2005 | 47% over the limit |
| Solids, total suspended | 4 | 18 | 2 | September 30, 2019 | 36% over the limit |
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 4 | 2 | June 30, 2021 | 60% over the limit |
| Chlorine, total residual | 4 | 9 | 1 | March 31, 2014 | 21% over the limit |
| pH | 2 | 9 | 1 | January 31, 2007 | |
| BOD, 5-day, percent removal | 1 | 6 | 1 | October 31, 2018 | 41% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 10 | 0 | ||
| Nitrogen, total [as N] | 4 | 8 | 0 | ||
| Phosphorus, total [as P] | 4 | 8 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 4 | 0 | ||
| %Mortality 7Day Chronic Ceriodaphnia dubia | 0 | 2 | 0 | ||
| %Repro Reduc Static Renewal7D Chronic Ceriodaphnia dubia | 0 | 2 | 0 | ||
| Pass/Fail Static 48Hr Acute Ceriodaphnia dubia | 1 | 1 | 0 | ||
| Oxygen demand, ultimate | 4 | 0 | 0 | ||
| LC50 Static 48Hr Acute Ceriodaphnia dubia | 1 | 0 | 0 | ||
| IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | 1 | 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
- 13Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| September 24, 2024 | Pretreatment - IU Violation of Pretreatment Standards | ST6 |
| September 24, 2024 | Pretreatment - Failure to Meet Inspection and Sampling Plan for SIUs | ST6 |
| September 24, 2024 | Pretreatment - Failure to Enforce Against I/U | ST6 |
| September 24, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| March 18, 2024 | Monitoring Violations - Improper Analysis or Lab Error | ST6 |
| February 8, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| July 24, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| February 15, 2023 | Pretreatment - Failure to Meet Inspection and Sampling Plan for SIUs | ST6 |
| March 7, 2022 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| September 22, 2021 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| July 15, 2021 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| August 21, 2019 | Management Practice Violations - Failure to Maintain Records | ST6 |
| August 21, 2019 | Permit Violations - Violation Specified in Comment | 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
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, SC0024457.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 SC0024457 there.
Nearby on the register
- Discharge permits in Beech Island
- Every permit record in Beech Island, 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.