Clean Water Act discharge permit · NPDES SC0043583
ISLE OF PALMS W&S R O, Isle Of Palms, SC: NPDES SC0043583 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 7Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
ISLE OF PALMS W&S R O, held by ISLE OF PALMS WATER & SEWER COMMISSION, holds NPDES permit SC0043583. EPA’s file records it issued February 26, 2024 and expiring February 28, 2029. 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 | ISLE OF PALMS W&S R O |
|---|---|
| Permittee as filed | ISLE OF PALMS WATER & SEWER COMMISSION |
| NPDES ID | SC0043583 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | February 26, 2024 |
| Expiration date | February 28, 2029 |
| Issuing agency | State |
| Address | Isle Of Palms, SC 29451 |
| Subwatershed | Breach Inlet (HUC 030502090204) |
| Program components on file | POTW, Pretreatment |
| NAICS | 221310 – Water Supply and Irrigation Systems |
| SIC | 4941 – Water Supply |
| Other EPA IDs (FRS) | RCRA handler SCD987584265 |
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
- 11Pollutants on file
- 7Under a numeric limit
- 9With 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 |
|---|---|---|---|---|---|
| Copper, total [as Cu] | 2 | 72 | 70 | April 30, 2025 | 11,170% over the limit |
| Solids, total suspended | 2 | 5 | 3 | November 30, 2016 | 68% over the limit |
| Temp. diff. between up/down stream deg. F | 0 | 62 | 0 | ||
| % Effect Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 10 | 0 | ||
| NOEL Static Renewal 7Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 0 | 10 | 0 | ||
| %Mortality 7Day Chronic Mysid. Bahia | 0 | 10 | 0 | ||
| %Repro Reduc Static Renewal 7D Americamysis bahia (formerly Mysidopsis bahia) | 0 | 10 | 0 | ||
| pH | 2 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 2 | 0 | ||
| LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | 1 | 0 | 0 | ||
| IC25 Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 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 SC0043583.
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, SC0043583.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
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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 SC0043583 there.
Nearby on the register
- Discharge permits in Isle Of Palms
- Every permit record in Isle Of Palms, 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.