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Sewage treatment plant, Rural Retreat, Virginia. NPDES permit VA0021326, in force until Jun 30, 2029. Last 12 months: over a limit 3 times (last December 2025). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | Solids, suspended percent removal, monthly average minimum | 82 | ≥ 85 % | 20% |
| December 2025 | Solids, total suspended, monthly average | 28.3 | ≤ 28 kg/d | 1% |
| December 2025 | Solids, total suspended, monthly average | 44 | ≤ 30 mg/L | 47% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 28 kg/d | all year |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 43 kg/d | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year |
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 28 kg/d | all year |
| Solids, total suspended | weekly average | ≤ 43 kg/d | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.5 mg/L | Jun–Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 4.9 mg/L | Jan–May |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 4.7 mg/L | Jun–Dec |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 6.6 mg/L | Jan–May |
| Flow, in conduit or thru treatment plant | monthly average | ≤ .25 MGD (alert, not enforceable) | all year |
| Flow, in conduit or thru treatment plant | maximum | report only (MGD) (alert, not enforceable) | all year |
| BOD, percent removal [total] | monthly average minimum | ≥ 85 % | all year |
| E. coli | monthly 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/VA0021326 · MCP: https://passage-data.com/mcp