Clean Water Act discharge permit · NPDES SCG570046
MACK ESTATES WWTP, Mcconnells, SC: NPDES SCG570046 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
MACK ESTATES WWTP, held by Shawn Clarke, holds NPDES permit SCG570046. EPA’s file records it issued December 15, 2025 and expiring December 31, 2030. 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.
What the register holds for MACK ESTATES WWTP: its NPDES ID, its permit type and status, its dates, its address in Mcconnells, South Carolina, and 9 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES SCG570046.
Identity
| Facility as filed | MACK ESTATES WWTP |
|---|---|
| Permittee as filed | Shawn Clarke |
| NPDES ID | SCG570046 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | December 15, 2025 |
| Expiration date | December 31, 2030 |
| Issuing agency | State |
| Address | Mcconnells, SC 29726 |
| Subwatershed | Susybole Creek (HUC 030501060103) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 9Pollutants on file
- 9Under a numeric limit
- 0With a violation of any kind
- 0With 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 | 0 | 0 | ||
| BOD, 5-day, 20 deg. C | 4 | 0 | 0 | ||
| Solids, total suspended | 4 | 0 | 0 | ||
| Chlorine, total residual | 4 | 0 | 0 | ||
| E. coli | 4 | 0 | 0 | ||
| pH | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 | ||
| Pass/Fail Static 48Hr Acute Ceriodaphnia dubia | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES SCG570046.
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 SCG570046.
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
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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 SCG570046 there.
Nearby on the register
- Discharge permits in Mcconnells
- Every permit record in Mcconnells, 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.