Clean Water Act discharge permit · NPDES SC0024783
NCSD FELIX C DAVIS WWTP, N Charleston, SC: NPDES SC0024783 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 0Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
- 1Inspections on file
- 0Formal enforcement actions
NCSD FELIX C DAVIS WWTP, held by NORTH CHARLESTON SEWER DISTRICT, holds NPDES permit SC0024783. EPA’s file records it issued February 8, 2022 and expiring August 31, 2024. 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 | NCSD FELIX C DAVIS WWTP |
|---|---|
| Permittee as filed | NORTH CHARLESTON SEWER DISTRICT |
| NPDES ID | SC0024783 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | February 8, 2022 |
| Expiration date | August 31, 2024 |
| Issuing agency | State |
| Address | N Charleston, SC 29405 |
| Subwatershed | Lower Cooper River (HUC 030502010707) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 10Pollutants on file
- 0Under a numeric limit
- 10With a violation of any kind
- 7With 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 |
|---|---|---|---|---|---|
| Enterococci | 0 | 7 | 7 | May 31, 2025 | 99,999% over the limit |
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 3 | 1 | April 30, 2012 | 55% over the limit |
| pH | 0 | 1 | 1 | April 30, 2005 | |
| Solids, total suspended | 0 | 1 | 1 | September 30, 2006 | 31% over the limit |
| Nitrogen, ammonia total [as N] | 0 | 1 | 1 | March 31, 2009 | 99,999% over the limit |
| Coliform, fecal general | 0 | 1 | 1 | October 31, 2011 | 25% over the limit |
| Solids, suspended percent removal | 0 | 1 | 1 | October 31, 2017 | 13% over the limit |
| Oxygen, dissolved [DO] | 0 | 47 | 0 | ||
| Nitrogen, total [as N] | 0 | 2 | 0 | ||
| Phosphorus, total [as P] | 0 | 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 |
|---|---|---|
| February 15, 2023 | Pretreatment - Failure to Meet Inspection and Sampling Plan for SIUs | ST6 |
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| August 11, 2026 | Audit | S |
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES SC0024783.
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 SC0024783 there.
NCSD FELIX C DAVIS WWTP, N Charleston, South Carolina: Individual permit SC0024783, held by NORTH CHARLESTON SEWER DISTRICT; Publicly owned treatment works; Effective; issued February 8, 2022, term to August 31, 2024, by State.
- Enterococci: 0 limits, 7 violations of any kind, 7 effluent exceedances, latest May 31, 2025, largest 99,999% over the limit.
- %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia: 0 limits, 3 violations of any kind, 1 effluent exceedance, latest April 30, 2012, largest 55% over the limit.
- pH: 0 limits, 1 violation of any kind, 1 effluent exceedance, latest April 30, 2005.
- Solids, total suspended: 0 limits, 1 violation of any kind, 1 effluent exceedance, latest September 30, 2006, largest 31% over the limit.
- Nitrogen, ammonia total [as N]: 0 limits, 1 violation of any kind, 1 effluent exceedance, latest March 31, 2009, largest 99,999% over the limit.
- Coliform, fecal general: 0 limits, 1 violation of any kind, 1 effluent exceedance, latest October 31, 2011, largest 25% over the limit.
- Solids, suspended percent removal: 0 limits, 1 violation of any kind, 1 effluent exceedance, latest October 31, 2017, largest 13% over the limit.
- Oxygen, dissolved [DO]: 0 limits, 47 violations of any kind.
- Nitrogen, total [as N]: 0 limits, 2 violations of any kind.
- Phosphorus, total [as P]: 0 limits, 2 violations of any kind.
- August 11, 2026: Audit (S).
- February 15, 2023: Pretreatment - Failure to Meet Inspection and Sampling Plan for SIUs (ST6).
South Carolina holds 156 Publicly owned treatment works coverages of this permit type in EPA’s file; 115 were issued before SC0024783.
Coverages issued nearest SC0024783
- 2021-07-30: SSSD LOWER N TYGER RIVER WWTP, Roebuck: SC0048143, held by SPARTANBURG SANITARY SEWER DISTRICT
- 2021-10-28: GCW&SD PAWLEYS AREA WWTP, Pawleys Isl: SC0039951, held by GEORGETOWN COUNTY WATER & SEWER DISTRICT
- 2021-10-28: GCW&SD MURRELLS INLET WWTF, Murrells Inlet: SC0040959, held by GEORGETOWN COUNTY WATER & SEWER DISTRICT
- 2021-11-23: FORT MILL WWTF, Fort Mill: SC0020371, held by FORT MILL TOWN OF
- 2021-12-06: CAYCE WWTP, Cayce: SC0024147, held by CAYCE CITY OF
- 2022-03-14: LANCASTER CATAWBA RIVER, Lancaster: SC0046892, held by LANCASTER CITY OF
- 2022-04-12: EAST RICH CO PSD GILLS CREEK, Columbia: SC0038865, held by EAST RICHLAND COUNTY PUBLIC SERVICE DISTRICT
- 2022-04-27: NEWBERRY BUSH RIVER WWTF, Newberry: SC0024490, held by NEWBERRY CITY OF
- 2022-05-13: SSSD A MANNING LYNCH & LAWSON FORK WWTF, Spartanburg: SC0020435, held by SPARTANBURG SANITARY SEWER DISTRICT
- 2022-05-23: CHARLESTON CPW PLUM ISLAND, Charleston: SC0021229, held by CHARLESTON WATER SYSTEM
NCSD FELIX C DAVIS WWTP among its neighbors
218 discharge permits are in the Lower Cooper River subwatershed (HUC 030502010707); SC0024783 is one. Its county: 1,077, 4 major; SC0024783 is major permit.
Other permits in the Lower Cooper River subwatershed (HUC 030502010707)
- 1278 REMOUNT ROAD, North Charleston: SCR10ZHNR, minor, term to 2030-05-18
- 1434 IRA ROAD, Mount Pleasant: SCR10ZEU1, minor, term to 2029-03-12
- 146 FAIRCHILD STREET PARKING IMPROVEMENTS, Charleston: SCR10Z9VK, minor, term to 2027-02-15
- 1590 MEETING STREET ROAD MULTIFAMILY, Charleston: SCR10ZF6D, minor, term to 2029-05-05
- 18HSA CONSOLIDATED BASE ADMIN. FACILITY USCG, North Charleston: SCR10ZG3Z, minor, term to 2029-09-24
- 1995 DANIEL ISLAND DRIVE HOTEL, Charleston: SCR10ZH6F, minor, term to 2030-03-18
- 275 HUGER STREET - AFFORDABLE HOUSING, Charleston: SCR10ZGP8, minor, term to 2029-12-22
- 411 MEETING STREET, Charleston: SCR10ZDC4, minor, term to 2028-07-20
- 4200 PIGGLY WIGGLY RD., North Charleston: SCR10ZATM, minor, term to 2027-06-30
- 4221 ATKINS STREET, North Charleston: SCR10ZL4D, minor, term to 2031-06-03
Nearby on the register
- Discharge permits in N Charleston
- Every permit record in N Charleston, 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.
What this page shows
This public-records page covers NPDES permit SC0024783, held by North Charleston Sewer District for the NCSD Felix C Davis WWTP in N Charleston, SC, with its status shown as Effective and its discharger class as Major. The figures listed are 10 pollutants on file, 0 under a numeric limit, 10 with a violation of any kind, and 7 with an effluent exceedance, within the Lower Cooper River (HUC 030502010707) subwatershed.