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Sewage treatment plant, Grottoes, Virginia. NPDES permit VA0027901, in force until Jun 30, 2031. Last 12 months: over a limit 3 times (last February 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| February 2026 | Solids, total suspended, monthly average | 39.7 | ≤ 30 mg/L | 32% |
| February 2026 | Solids, total suspended, monthly average | 5 | ≤ 4.5 kg/d | 11% |
| February 2026 | Solids, total suspended, maximum weekly average | 48.6 | ≤ 45 mg/L | 8% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 45 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 4.5 kg/d | all year | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 6.8 kg/d | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 001 |
| pH | minimum | ≥ 6.5 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | maximum weekly average | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 4.5 kg/d | all year | 001 |
| Solids, total suspended | maximum weekly average | ≤ 6.8 kg/d | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | ≤ .04 MGD (alert, not enforceable) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) (alert, not enforceable) | all year | 001 |
| BOD, percent removal [total] | monthly average minimum | ≥ 85 % | all year | 001 |
| E. coli | monthly average | ≤ 126 #/100mL | all year | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Phosphorus, Total As P | maximum | ≤ 5177 lb/yr | all year | 999 |
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/VA0027901 · MCP: https://passage-data.com/mcp