NPDES permit SC0040614 · Major POTW · administratively continued, expires 2022-11-30 · EPA's file as of 2026-09-19
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This permit expired on 2022-11-30 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 (read off this permit's own late-day counts in EPA's filings).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Oxygen demand, ultimate | MO AVG | <= 640 lb/d | Jan, Feb, Nov, Dec |
| 001 | Oxygen demand, ultimate | MO AVG | <= 464 lb/d | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | Oxygen demand, ultimate | WKLY AVG | <= 960 lb/d | Jan, Feb, Nov, Dec |
| 001 | Oxygen demand, ultimate | WKLY AVG | <= 696 lb/d | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | Oxygen, dissolved [DO] | MINIMUM | >= 6 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 21.5 mg/L | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 30 mg/L | Jan, Feb, Nov, Dec |
| 001 | BOD, 5-day, 20 deg. C | WKLY AVG | <= 32.2 mg/L | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, 5-day, 20 deg. C | WKLY AVG | <= 45 mg/L | Jan, Feb, Nov, Dec |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 305 lb/d | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 425 lb/d | Jan, Feb, Nov, Dec |
| 001 | BOD, 5-day, 20 deg. C | WKLY AVG | <= 458 lb/d | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, 5-day, 20 deg. C | WKLY AVG | <= 638 lb/d | Jan, Feb, Nov, Dec |
| 001 | pH | MINIMUM | >= 6 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 | WKLY AVG | <= 45 mg/L | all year |
| 001 | Solids, total suspended | MO AVG | <= 425 lb/d | all year |
| 001 | Solids, total suspended | WKLY AVG | <= 638 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 5.6 mg/L | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 12.83 mg/L | Jan, Feb, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 8.4 mg/L | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 19.24 mg/L | Jan, Feb, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 79 lb/d | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 182 lb/d | Jan, Feb, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 119 lb/d | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 273 lb/d | Jan, Feb, Nov, Dec |
| 001 | Nitrogen, nitrate total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, nitrate total [as N] | WKLY AVG | report only | all year |
| 001 | Nitrogen, nitrate total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, nitrate total [as N] | WKLY AVG | report only | all year |
| 001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 001 | Phosphorus, total [as P] | WKLY AVG | report only | all year |
| 001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 001 | Phosphorus, total [as P] | WKLY AVG | report only | all year |
| 001 | Hardness, total [as CaCO3] | MO AVG | report only | all year |
| 001 | Hardness, total [as CaCO3] | DAILY MX | report only | all year |
| 001 | Hardness, total [as CaCO3] | MO AVG | report only | all year |
| 001 | Hardness, total [as CaCO3] | DAILY MX | report only | all year |
| 001 | Copper, total [as Cu] | MO AVG | <= .036 mg/L | all year |
| 001 | Copper, total [as Cu] | DAILY MX | <= .051 mg/L | all year |
| 001 | Copper, total [as Cu] | MO AVG | <= .51 lb/d | all year |
| 001 | Copper, total [as Cu] | DAILY MX | <= .72 lb/d | all year |
| 001 | Antimony, total [as Sb] | MO AVG | <= .031 mg/L | all year |
| 001 | Antimony, total [as Sb] | DAILY MX | <= .045 mg/L | all year |
| 001 | Antimony, total [as Sb] | MO AVG | <= .44 lb/d | all year |
| 001 | Antimony, total [as Sb] | DAILY MX | <= .64 lb/d | all year |
| 001 | Aluminum, total [as Al] | MO AVG | <= .209 mg/L | all year |
| 001 | Aluminum, total [as Al] | DAILY MX | <= 1.803 mg/L | all year |
| 001 | Aluminum, total [as Al] | MO AVG | <= 2.96 lb/d | all year |
| 001 | Aluminum, total [as Al] | DAILY MX | <= 25.56 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 | WKLY AVG | report only | all year |
| 001 | Chlorine, total residual | MO AVG | <= .033 mg/L | all year |
| 001 | Chlorine, total residual | DAILY MX | <= .057 mg/L | all year |
| 001 | Chlorine, total residual | MO AVG | <= .47 lb/d | all year |
| 001 | Chlorine, total residual | DAILY MX | <= .81 lb/d | all year |
| 001 | E. coli | 30DAVGEO | <= 126 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 | DAILY MX | <= 800 MPN/100mL | 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 | %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 |
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