NPDES permit SC0035700 · Major POTW · administratively continued, expires 2026-03-31 · EPA's file as of 2026-09-19
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This permit expired on 2026-03-31 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. Most often over: Nitrogen, ammonia total [as N] (12), Phosphorus, total [as P] (3), Oxygen demand, ultimate (2).
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 demand, ultimate | MO AVG | <= 314 lb/d | all year |
| 001 | Oxygen demand, ultimate | MO AVG | <= 314 lb/d | all year |
| 001 | Oxygen demand, ultimate | MO AVG | <= 314 lb/d | all year |
| 001 | Oxygen demand, ultimate | WKLY AVG | <= 471 lb/d | all year |
| 001 | Oxygen demand, ultimate | WKLY AVG | <= 471 lb/d | all year |
| 001 | Oxygen demand, ultimate | WKLY AVG | <= 471 lb/d | all year |
| 001 | Oxygen, dissolved [DO] | MINIMUM | >= 6 mg/L | all year |
| 001 | Oxygen, dissolved [DO] | MINIMUM | >= 6 mg/L | all year |
| 001 | Oxygen, dissolved [DO] | MINIMUM | >= 6 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 10 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 9.5 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 10 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | WKLY AVG | <= 15 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | WKLY AVG | <= 14.3 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | WKLY AVG | <= 15 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 250 lb/d | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 159 lb/d | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 417 lb/d | all year |
| 001 | BOD, 5-day, 20 deg. C | WKLY AVG | <= 376 lb/d | all year |
| 001 | BOD, 5-day, 20 deg. C | WKLY AVG | <= 239 lb/d | all year |
| 001 | BOD, 5-day, 20 deg. C | WKLY AVG | <= 626 lb/d | all year |
| 001 | pH | MINIMUM | >= 6 SU | all year |
| 001 | pH | MINIMUM | >= 6 SU | all year |
| 001 | pH | MINIMUM | >= 6 SU | all year |
| 001 | pH | MAXIMUM | <= 8.5 SU | all year |
| 001 | pH | MAXIMUM | <= 8.5 SU | all year |
| 001 | pH | MAXIMUM | <= 8.5 SU | all year |
| 001 | Solids, total suspended | MO AVG | <= 30 mg/L | all year |
| 001 | Solids, total suspended | MO AVG | <= 30 mg/L | all year |
| 001 | Solids, total suspended | MO AVG | <= 30 mg/L | all year |
| 001 | Solids, total suspended | WKLY AVG | <= 45 mg/L | all year |
| 001 | Solids, total suspended | WKLY AVG | <= 45 mg/L | all year |
| 001 | Solids, total suspended | WKLY AVG | <= 45 mg/L | all year |
| 001 | Solids, total suspended | MO AVG | <= 501 lb/d | all year |
| 001 | Solids, total suspended | MO AVG | <= 1252 lb/d | all year |
| 001 | Solids, total suspended | MO AVG | <= 751 lb/d | all year |
| 001 | Solids, total suspended | WKLY AVG | <= 751 lb/d | all year |
| 001 | Solids, total suspended | WKLY AVG | <= 1878 lb/d | all year |
| 001 | Solids, total suspended | WKLY AVG | <= 1127 lb/d | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | WKLY AVG | report only | all year |
| 001 | Nitrogen, total [as N] | WKLY AVG | report only | all year |
| 001 | Nitrogen, total [as N] | WKLY AVG | report only | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | WKLY AVG | report only | all year |
| 001 | Nitrogen, total [as N] | WKLY AVG | report only | all year |
| 001 | Nitrogen, total [as N] | WKLY AVG | report only | all year |
| 001 | Nitrogen, total [as N] | MO AVG | <= 6377.3 lb/d | all year |
| 001 | Nitrogen, total [as N] | MO AVG | <= 63772.8 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 2 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 4.7 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 7.5 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 3 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 7.1 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 11.3 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 33 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 196 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 188 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 50 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 296 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 283 lb/d | all year |
| 001 | Phosphorus, total [as P] | MO AVG | <= 1 mg/L | all year |
| 001 | Phosphorus, total [as P] | MO AVG | <= 1 mg/L | all year |
| 001 | Phosphorus, total [as P] | MO AVG | <= 1 mg/L | all year |
| 001 | Phosphorus, total [as P] | WKLY AVG | <= 1.5 mg/L | all year |
| 001 | Phosphorus, total [as P] | WKLY AVG | <= 1.5 mg/L | all year |
| 001 | Phosphorus, total [as P] | WKLY AVG | <= 1.5 mg/L | all year |
| 001 | Phosphorus, total [as P] | MO AVG | <= 10.8 lb/d | all year |
| 001 | Phosphorus, total [as P] | MO AVG | <= 10.8 lb/d | all year |
| 001 | Phosphorus, total [as P] | MO AVG | <= 10.8 lb/d | all year |
| 001 | Phosphorus, total [as P] | WKLY AVG | <= 16.2 lb/d | all year |
| 001 | Phosphorus, total [as P] | WKLY AVG | <= 16.2 lb/d | all year |
| 001 | Phosphorus, total [as P] | WKLY AVG | <= 16.2 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 | MO AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | MO MAX | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | WKLY AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | WKLY AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | WKLY AVG | report only | all year |
| 001 | Chlorine, total residual | MO AVG | <= .021 mg/L | all year |
| 001 | Chlorine, total residual | MO AVG | <= .028 mg/L | all year |
| 001 | Chlorine, total residual | MO AVG | <= .036 mg/L | all year |
| 001 | Chlorine, total residual | DAILY MX | <= .036 mg/L | all year |
| 001 | Chlorine, total residual | DAILY MX | <= .048 mg/L | all year |
| 001 | Chlorine, total residual | DAILY MX | <= .062 mg/L | all year |
| 001 | Chlorine, total residual | MO AVG | <= .9 lb/d | all year |
| 001 | Chlorine, total residual | MO AVG | <= .7 lb/d | all year |
| 001 | Chlorine, total residual | MO AVG | <= .6 lb/d | all year |
| 001 | Chlorine, total residual | DAILY MX | <= 1.5 lb/d | all year |
| 001 | Chlorine, total residual | DAILY MX | <= 1.2 lb/d | all year |
| 001 | Chlorine, total residual | DAILY MX | <= 1 lb/d | all year |
| 001 | E. coli | 30DAVGEO | <= 126 MPN/100mL | all year |
| 001 | E. coli | 30DAVGEO | <= 126 MPN/100mL | all year |
| 001 | E. coli | 30DAVGEO | <= 126 MPN/100mL | all year |
| 001 | E. coli | DAILY MX | <= 349 MPN/100mL | all year |
| 001 | E. coli | DAILY MX | <= 349 MPN/100mL | all year |
| 001 | E. coli | DAILY MX | <= 349 MPN/100mL | all year |
| 001 | E. coli | 30DAVGEO | <= 126 MPN/100mL | all year |
| 001 | E. coli | 30DAVGEO | <= 126 MPN/100mL | all year |
| 001 | E. coli | 30DAVGEO | <= 126 MPN/100mL | all year |
| 001 | E. coli | DAILY MX | <= 800 MPN/100mL | all year |
| 001 | E. coli | DAILY MX | <= 800 MPN/100mL | all year |
| 001 | E. coli | DAILY MX | <= 800 MPN/100mL | all year |
| 001 | BOD, 5-day, percent removal | MO AV MN | >= 85 % | all year |
| 001 | BOD, 5-day, percent removal | MO AV MN | >= 85 % | all year |
| 001 | Solids, suspended percent removal | MO AV MN | >= 85 % | all year |
| 001 | Solids, suspended percent removal | 30DAVGEO | <= 85 % | all year |
| 001 | Solids, suspended percent removal | MO AV MN | >= 85 % | all year |
| 001 | LC50 Static 48Hr Acute Ceriodaphnia dubia | DAILY MN | report only | all year |
| 001 | LC50 Static 48Hr Acute Ceriodaphnia dubia | DAILY MN | report only | all year |
| 001 | LC50 Static 48Hr Acute Ceriodaphnia dubia | DAILY MN | report only | all year |
| 001 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | MO AVG | <= 25 % | all year |
| 001 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | MO AVG | <= 25 % | all year |
| 001 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | MO AVG | <= 25 % | all year |
| 001 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | DAILY MX | <= 40 % | all year |
| 001 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | DAILY MX | <= 40 % | all year |
| 001 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | DAILY MX | <= 40 % | all year |
| 001 | IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | DAILY MN | report only | all year |
| 001 | IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | DAILY MN | report only | all year |
| 001 | IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | DAILY MN | report only | all year |
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