Clean Water Act discharge permit · NPDES SC0048470
REWA PIEDMONT REGIONAL WWTP, Piedmont, SC: NPDES SC0048470 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 16Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
REWA PIEDMONT REGIONAL WWTP, held by RENEWABLE WATER RESOURCES, holds NPDES permit SC0048470. EPA’s file records it issued April 1, 2024 and expiring August 31, 2027. 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 | REWA PIEDMONT REGIONAL WWTP |
|---|---|
| Permittee as filed | RENEWABLE WATER RESOURCES |
| NPDES ID | SC0048470 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | April 1, 2024 |
| Expiration date | August 31, 2027 |
| Issuing agency | State |
| Address | Piedmont, SC 29673 |
| Subwatershed | Craven Creek-Saluda River (HUC 030501090307) |
| Program components on file | 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
- 7With a violation of any kind
- 2With 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 |
|---|---|---|---|---|---|
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 4 | 4 | December 31, 2021 | 93% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 7 | 3 | October 31, 2016 | 161% over the limit |
| Chlorine, total residual | 4 | 30 | 0 | ||
| Nitrogen, nitrate total [as N] | 0 | 28 | 0 | ||
| Nitrogen, total [as N] | 4 | 4 | 0 | ||
| E. coli | 4 | 2 | 0 | ||
| Phosphorus, total [as P] | 6 | 1 | 0 | ||
| Solids, total suspended | 4 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 4 | 0 | 0 | ||
| Oxygen demand, ultimate | 2 | 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 | ||
| Solids, suspended percent removal | 1 | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES SC0048470.
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, SC0048470.
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 SC0048470 there.
Nearby on the register
- Discharge permits in Piedmont
- Every permit record in Piedmont, 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.