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Sewage treatment plant, major discharger, South Hill, Virginia. NPDES permit VA0069337, in force until Aug 31, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year |
| Temperature, water deg. centigrade | weekly average | report only (deg C) | all year |
| Oxygen, dissolved [DO] | minimum | ≥ 6.5 mg/L | all year |
| pH | daily minimum | ≥ 6 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 16.5 mg/L | all year |
| Solids, total suspended | maximum weekly average | ≤ 25 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 189.3 kg/d | all year |
| Solids, total suspended | maximum weekly average | ≤ 283.9 kg/d | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .79 mg/L | Apr–Nov |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ .97 mg/L | Apr–Nov |
| Nitrogen, Kjeldahl, total [as N] | monthly average | ≤ 5 mg/L | Jan, Feb, Mar, Dec |
| Nitrogen, Kjeldahl, total [as N] | monthly average | ≤ 4 mg/L | Apr–Nov |
| Nitrogen, Kjeldahl, total [as N] | maximum weekly average | ≤ 7.5 mg/L | Jan, Feb, Mar, Dec |
| Nitrogen, Kjeldahl, total [as N] | maximum weekly average | ≤ 6 mg/L | Apr–Nov |
| Nitrogen, Kjeldahl, total [as N] | monthly average | ≤ 56 kg/d | Jan, Feb, Mar, Dec |
| Nitrogen, Kjeldahl, total [as N] | monthly average | ≤ 45 kg/d | Apr–Nov |
| Nitrogen, Kjeldahl, total [as N] | maximum weekly average | ≤ 85 kg/d | Jan, Feb, Mar, Dec |
| Nitrogen, Kjeldahl, total [as N] | maximum weekly average | ≤ 68 kg/d | Apr–Nov |
| Hardness, total [as CaCO3] | weekly average | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | maximum | report only (mg/L) | all year |
| Iron, total recoverable | monthly average | ≤ .309 mg/L | all year |
| Iron, total recoverable | weekly average | ≤ .309 mg/L | all year |
| Flow, in conduit or thru treatment plant | monthly average | ≤ 3 MGD (alert, not enforceable) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) (alert, not enforceable) | all year |
| E. coli | monthly average | ≤ 84 #/100mL | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | Apr–Nov |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 18 mg/L | Jan, Feb, Mar, Dec |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 15 mg/L | Apr–Nov |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 27 mg/L | Jan, Feb, Mar, Dec |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 110 kg/d | Apr–Nov |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 200 kg/d | Jan, Feb, Mar, Dec |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 170 kg/d | Apr–Nov |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 310 kg/d | Jan, Feb, Mar, Dec |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year |
| BOD, carb-5 day, 20 deg C, percent removal | monthly average minimum | ≥ 85 % | all year |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year |
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | maximum | report only (tox chronic) | all year |
| TU Static Renewal 7-Day Chronic Pimphales promelas | maximum | report only (tox chronic) | all year |
Cited limits by parameter: Virginia'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/VA0069337 · MCP: https://passage-data.com/mcp