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Offices Of Health Practitioners, Lancaster, South Carolina. NPDES permit SC0041807 expired Feb 29, 2024; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | minimum | ≥ 5 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 15 mg/L | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 30 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 1 lb/d | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 2 lb/d | all year |
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 8.5 SU | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 2 lb/d | all year |
| Solids, total suspended | daily maximum | ≤ 4 lb/d | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.82 mg/L | Jan, Feb, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.05 mg/L | Mar–Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 3.64 mg/L | Jan, Feb, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2.1 mg/L | Mar–Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .12 lb/d | Jan, Feb, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .07 lb/d | Mar–Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .24 lb/d | Jan, Feb, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .14 lb/d | Mar–Oct |
| Phosphorus, total [as P] | monthly average | ≤ 1 mg/L | all year |
| Phosphorus, total [as P] | daily maximum | ≤ 2 mg/L | all year |
| Phosphorus, total [as P] | monthly average | ≤ .07 lb/d | all year |
| Phosphorus, total [as P] | daily maximum | ≤ .13 lb/d | all year |
| Cadmium, total [as Cd] | monthly average | ≤ .00034 mg/L | all year |
| Cadmium, total [as Cd] | daily maximum | ≤ .0019 mg/L | all year |
| Cadmium, total [as Cd] | monthly average | ≤ .000023 lb/d | all year |
| Cadmium, total [as Cd] | daily maximum | ≤ .00013 lb/d | all year |
| Copper, total [as Cu] | monthly average | ≤ .0097 mg/L | all year |
| Copper, total [as Cu] | daily maximum | ≤ .013 mg/L | all year |
| Copper, total [as Cu] | monthly average | ≤ .00065 lb/d | all year |
| Copper, total [as Cu] | daily maximum | ≤ .00087 lb/d | all year |
| Lead, total [as Pb] | monthly average | ≤ .0035 mg/L | all year |
| Lead, total [as Pb] | daily maximum | ≤ .091 mg/L | all year |
| Lead, total [as Pb] | monthly average | ≤ .00023 lb/d | all year |
| Lead, total [as Pb] | daily maximum | ≤ .0061 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 | daily maximum | report only (MGD) | all year |
| Chlorine, total residual | monthly average | ≤ .011 mg/L | all year |
| Chlorine, total residual | daily maximum | ≤ .019 mg/L | all year |
| Chlorine, total residual | monthly average | ≤ .0007 lb/d | all year |
| Chlorine, total residual | daily maximum | ≤ .0013 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 |
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average | report only (%) | all year |
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | daily maximum | report only (%) | all year |
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/SC0041807 · MCP: https://passage-data.com/mcp