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Sewage treatment plant, major discharger, Easley, South Carolina. NPDES permit SC0039853, in force until Sep 30, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen demand, ultimate | monthly average | ≤ 1110 lb/d | all year |
| Oxygen demand, ultimate | weekly average | ≤ 1665 lb/d | all year |
| Oxygen, dissolved [DO] | minimum | ≥ 5 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 21 mg/L | all year |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 30 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 613 lb/d | all year |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 876 lb/d | all year |
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 8.5 SU | all year |
| Solids, total suspended | monthly average | ≤ 21 mg/L | all year |
| Solids, total suspended | weekly average | ≤ 30 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 613 lb/d | all year |
| Solids, total suspended | weekly average | ≤ 876 lb/d | all year |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | weekly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year |
| Nitrogen, total [as N] | weekly average | report only (lb/d) | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.86 mg/L | Jan, Feb, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.43 mg/L | Mar–Oct |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 2.6 mg/L | Jan, Feb, Nov, Dec |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 2 mg/L | Mar–Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 54 lb/d | Jan, Feb, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 42 lb/d | Mar–Oct |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 76 lb/d | Jan, Feb, Nov, Dec |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 58 lb/d | Mar–Oct |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | weekly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year |
| Phosphorus, total [as P] | weekly average | report only (lb/d) | all year |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year |
| Phosphorus, total [as P] | monthly average | ≤ 0 lb/d | all year |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Copper, total [as Cu] | monthly average | report only (mg/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year |
| Copper, total [as Cu] | monthly average | report only (lb/d) | all year |
| Copper, total [as Cu] | daily maximum | report only (lb/d) | all year |
| Nickel, total [as Ni] | monthly average | report only (mg/L) | all year |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year |
| Nickel, total [as Ni] | monthly average | report only (lb/d) | all year |
| Nickel, total [as Ni] | daily maximum | report only (lb/d) | all year |
| Zinc, total [as Zn] | monthly average | report only (mg/L) | all year |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year |
| Zinc, total [as Zn] | monthly average | report only (lb/d) | all year |
| Zinc, total [as Zn] | daily maximum | report only (lb/d) | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | weekly average | report only (MGD) | all year |
| Chlorine, total residual | monthly average | ≤ .013 mg/L | all year |
| Chlorine, total residual | daily maximum | ≤ .023 mg/L | all year |
| Chlorine, total residual | monthly average | ≤ .38 lb/d | all year |
| Chlorine, total residual | daily maximum | ≤ .67 lb/d | all year |
| E. coli | 30-day geometric mean | ≤ 126 MPN/100mL | all year |
| E. coli | daily maximum | ≤ 349 MPN/100mL | all year |
| E. coli | 30-day geometric mean | ≤ 126 MPN/100mL | all year |
| E. coli | daily maximum | ≤ 800 MPN/100mL | all year |
| BOD, 5-day, percent removal | monthly average minimum | ≥ 85 % | all year |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | daily minimum | report only (%) | all year |
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average | ≤ 25 % | all year |
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | daily maximum | ≤ 40 % | all year |
| IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | daily minimum | report only (%) | all year |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia, daily maximum | 40 % | new | — | — |
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia, monthly average | 25 % | new | — | — |
| BOD, 5-day, 20 deg. C, monthly average | 587 lb/d | new | — | — |
| BOD, 5-day, 20 deg. C, monthly average | 16.77 mg/L | new | — | — |
| BOD, 5-day, 20 deg. C, weekly average | 25.16 mg/L | new | — | — |
| BOD, 5-day, 20 deg. C, weekly average | 881 lb/d | new | — | — |
| Chlorine, total residual, daily maximum | 0.022 mg/L | new | — | — |
| Chlorine, total residual, daily maximum | 0.77 lb/d | new | — | — |
| Chlorine, total residual, monthly average | 0.46 lb/d | new | — | — |
| Chlorine, total residual, monthly average | 0.013 mg/L | new | — | — |
| E. coli, 30-day geometric mean | 126 MPN/100mL | new | — | — |
| E. coli, 30-day geometric mean | 126 MPN/100mL | new | — | — |
| E. coli, daily maximum | 800 MPN/100mL | new | — | — |
| E. coli, daily maximum | 349 MPN/100mL | new | — | — |
| Nitrogen, ammonia total [as N], monthly average | 1.43 mg/L (Mar–Oct) | new | — | — |
| Nitrogen, ammonia total [as N], monthly average | 50 lb/d (Mar–Oct) | new | — | — |
| Nitrogen, ammonia total [as N], monthly average | 65 lb/d (Jan, Feb, Nov, Dec) | new | — | — |
| Nitrogen, ammonia total [as N], monthly average | 1.86 mg/L (Jan, Feb, Nov, Dec) | new | — | — |
| Nitrogen, ammonia total [as N], weekly average | 70 lb/d (Mar–Oct) | new | — | — |
| Nitrogen, ammonia total [as N], weekly average | 2 mg/L (Mar–Oct) | new | — | — |
| Nitrogen, ammonia total [as N], weekly average | 2.6 mg/L (Jan, Feb, Nov, Dec) | new | — | — |
| Nitrogen, ammonia total [as N], weekly average | 91 lb/d (Jan, Feb, Nov, Dec) | new | — | — |
| Oxygen demand, ultimate, monthly average | 1110 lb/d | new | — | — |
| Oxygen demand, ultimate, weekly average | 1665 lb/d | new | — | — |
| Phosphorus, total [as P], monthly average | 0 kg/d | new | — | — |
| Solids, total suspended, monthly average | 21 mg/L | new | — | — |
| Solids, total suspended, monthly average | 736 lb/d | new | — | — |
| Solids, total suspended, weekly average | 30 mg/L | new | — | — |
| Solids, total suspended, weekly average | 1051 lb/d | new | — | — |
| pH, maximum | 8.5 SU | new | — | — |
Cited limits by parameter: South Carolina's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/SC0039853 · MCP: https://passage-data.com/mcp