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Sewage treatment plant, Rustburg, Virginia. NPDES permit VA0023965, in force until Jul 31, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | minimum | ≥ 6 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 10.7 mg/L | all year |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 16 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 8.13 kg/d | all year |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 12.11 kg/d | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year |
| pH | instantaneous minimum | ≥ 6 SU | all year |
| pH | instantaneous maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | maximum weekly average | ≤ 45 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 22.7 kg/d | all year |
| Solids, total suspended | maximum weekly average | ≤ 34 kg/d | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.84 mg/L | all year |
| Nitrogen, ammonia total [as N] | maximum | ≤ 1.84 mg/L | all year |
| Copper, total recoverable | monthly average | ≤ 17.4 ug/L | all year |
| Copper, total recoverable | maximum weekly average | ≤ 17.4 ug/L | all year |
| Flow, in conduit or thru treatment plant | monthly average | ≤ .2 MGD (alert, not enforceable) | all year |
| Flow, in conduit or thru treatment plant | maximum weekly average | report only (MGD) (alert, not enforceable) | all year |
| Chlorine, total residual | monthly average | ≤ 7.9 ug/L | all year |
| Chlorine, total residual | maximum weekly average | ≤ 9.8 ug/L | all year |
| Chlorine, total residual | minimum | ≥ .6 mg/L | all year |
| BOD, percent removal [total] | monthly average minimum | ≥ 85 % | all year |
| E. coli | geometric mean | ≤ 126 #/100mL | all year |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | 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/VA0023965 · MCP: https://passage-data.com/mcp