Clean Water Act discharge permit · NPDES SC0042994
PICKENS CO 18 MILE CREEK UPPER WWTP, Liberty, SC: NPDES SC0042994 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 16Pollutants under a numeric limit
- 9Pollutants with an effluent exceedance
PICKENS CO 18 MILE CREEK UPPER WWTP, held by PICKENS COUNTY PUBLIC SERVICE COMMISSION, holds NPDES permit SC0042994. EPA’s file records it issued September 7, 2020 and expiring August 31, 2024. 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 | PICKENS CO 18 MILE CREEK UPPER WWTP |
|---|---|
| Permittee as filed | PICKENS COUNTY PUBLIC SERVICE COMMISSION |
| NPDES ID | SC0042994 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | September 7, 2020 |
| Expiration date | August 31, 2024 |
| Issuing agency | State |
| Address | Liberty, SC 29657 |
| Subwatershed | Upper Eighteenmile Creek (HUC 030601010601) |
| Program components on file | Biosolids, POTW, Pretreatment |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
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
- 17Pollutants on file
- 16Under a numeric limit
- 10With a violation of any kind
- 9With 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 | 26 | 26 | March 31, 2026 | 456% over the limit |
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 25 | 25 | July 31, 2019 | 300% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 7 | 7 | April 30, 2026 | 119% over the limit |
| E. coli | 4 | 5 | 5 | April 30, 2025 | 593% over the limit |
| Phosphorus, total [as P] | 4 | 4 | 4 | April 30, 2025 | 60% over the limit |
| Coliform, fecal general | 0 | 3 | 3 | February 28, 2013 | 300% over the limit |
| Copper, total [as Cu] | 4 | 2 | 2 | October 31, 2023 | 329% over the limit |
| Solids, total suspended | 4 | 1 | 1 | April 30, 2025 | 10% over the limit |
| Solids, suspended percent removal | 1 | 1 | 1 | June 30, 2004 | 501% over the limit |
| Nitrogen, total [as N] | 4 | 1 | 0 | ||
| Mercury, total [as Hg] | 8 | 0 | 0 | ||
| Zinc, total [as Zn] | 4 | 0 | 0 | ||
| Chlorine, total residual | 4 | 0 | 0 | ||
| pH | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 | ||
| BOD, 5-day, percent removal | 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
- 9Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| October 15, 2021 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| October 15, 2021 | Permit Violations - Violation Specified in Comment | ST6 |
| October 4, 2021 | Permit Violations - Violation Specified in Comment | ST6 |
| September 30, 2021 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| September 30, 2021 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| September 30, 2021 | Permit Violations - Violation Specified in Comment | ST6 |
| September 30, 2021 | Management Practice Violations - Failure to Conduct Inspections | ST6 |
| October 5, 2018 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| October 5, 2018 | Management Practice Violations - Failure to Maintain Records | 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, SC0042994.
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 SC0042994 there.
Nearby on the register
- Discharge permits in Liberty
- Every permit record in Liberty, 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.