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Sewage treatment plant, major discharger, Stafford, Virginia. NPDES permit VA0060968, in force until Aug 31, 2030. 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 |
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 6 mg/L | all year |
| Solids, total suspended | weekly average | ≤ 9 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 230 kg/d | all year |
| Solids, total suspended | weekly average | ≤ 340 kg/d | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.1 mg/L | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .78 mg/L | Apr–Oct |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 2.6 mg/L | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | weekly average | ≤ .96 mg/L | Apr–Oct |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | weekly average | report only (mg/L) | all year |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | monthly average | ≤ .18 mg/L | all year |
| Phosphorus, total [as P] | weekly average | ≤ .27 mg/L | all year |
| Phosphorus, total [as P] | monthly average | ≤ 4.5 kg/d | all year |
| Phosphorus, total [as P] | weekly average | ≤ 6.8 kg/d | all year |
| Flow, in conduit or thru treatment plant | monthly average | ≤ 10 MGD (alert, not enforceable) | all year |
| Flow, in conduit or thru treatment plant | maximum | report only (MGD) (alert, not enforceable) | all year |
| E. coli | geometric mean | ≤ 126 #/100mL | all year |
| Nitrogen, Total As N | annual average | ≤ 3 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 5 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 8 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 190 kg/d | all year |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 300 kg/d | all year |
| 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 |
Cited limits by parameter: Virginia's rules and the federal ones.
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Your permit document is the final word. As JSON: /api/v1/permits/VA0060968 · MCP: https://passage-data.com/mcp