NPDES permit SC0002518 · Major NON-POTW · administratively continued, expires 2023-10-31 · EPA's file as of 2026-09-19
Check this month's numbers before you fileThis permit expired on 2023-10-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.
Last period with anything received: 2026-07-31.
Reports are due about 29 days after each monitoring period ends (the most common figure among SC permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Oxygen, dissolved [DO] | INST MIN | >= 1 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 3.9 lb/d | all year |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | <= 7.7 lb/d | all year |
| 001 | Oxygen demand, chem. [high level] [COD] | MO AVG | report only | all year |
| 001 | Oxygen demand, chem. [high level] [COD] | DAILY MX | report only | all year |
| 001 | Oxygen demand, chem. [high level] [COD] | MO AVG | <= 34 lb/d | all year |
| 001 | Oxygen demand, chem. [high level] [COD] | DAILY MX | <= 69 lb/d | all year |
| 001 | pH | INST MIN | >= 6 SU | all year |
| 001 | pH | INST MAX | <= 8.5 SU | all year |
| 001 | Solids, total suspended | MO AVG | report only | all year |
| 001 | Solids, total suspended | DAILY MX | report only | all year |
| 001 | Solids, total suspended | MO AVG | <= 10 lb/d | all year |
| 001 | Solids, total suspended | DAILY MX | <= 21 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| 001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 001 | Sulfide, total [as S] | MO AVG | report only | all year |
| 001 | Sulfide, total [as S] | DAILY MX | report only | all year |
| 001 | Sulfide, total [as S] | MO AVG | <= .11 lb/d | all year |
| 001 | Sulfide, total [as S] | DAILY MX | <= .23 lb/d | all year |
| 001 | Chromium, total [as Cr] | MO AVG | report only | all year |
| 001 | Chromium, total [as Cr] | DAILY MX | report only | all year |
| 001 | Chromium, total [as Cr] | MO AVG | <= .06 lb/d | all year |
| 001 | Chromium, total [as Cr] | DAILY MX | <= .11 lb/d | all year |
| 001 | Copper, total [as Cu] | MO AVG | <= .0057 mg/L | all year |
| 001 | Copper, total [as Cu] | DAILY MX | <= .0074 mg/L | all year |
| 001 | Hexachlorocyclopentadiene | MO AVG | report only | all year |
| 001 | Hexachlorocyclopentadiene | DAILY MX | report only | all year |
| 001 | 3,3'-Dichlorobenzidine | MO AVG | report only | all year |
| 001 | 3,3'-Dichlorobenzidine | DAILY MX | report only | all year |
| 001 | Aldrin | MO AVG | <= .000047 mg/L | all year |
| 001 | Aldrin | DAILY MX | <= .00015 mg/L | all year |
| 001 | Phenols | MO AVG | report only | all year |
| 001 | Phenols | DAILY MX | report only | all year |
| 001 | Phenols | MO AVG | <= .06 lb/d | all year |
| 001 | Phenols | DAILY MX | <= .11 lb/d | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 001 | Chlorine, total residual | MO AVG | <= .5 mg/L | all year |
| 001 | Chlorine, total residual | DAILY MX | <= 1 mg/L | all year |
| 001 | E. coli | 30DAVGEO | <= 126 MPN/100mL | all year |
| 001 | E. coli | DAILY MX | <= 349 MPN/100mL | all year |
| 001 | Mercury, total [as Hg] | MO AVG | report only | all year |
| 001 | Mercury, total [as Hg] | DAILY MX | report only | all year |
| 001 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | MO AVG | report only | all year |
| 001 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | DAILY MX | report only | all year |
Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states