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Bituminous Coal And Lignite - Surface, Purcell, Virginia. NPDES permit VAM082010 expired May 16, 2023; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | instantaneous minimum | ≥ 6 SU | all year | 6977 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 6977 |
| Solids, total suspended | daily minimum | report only (mg/L) | all year | 6977 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 6977 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 6977 |
| Solids, settleable | daily minimum | report only (mL/L) | all year | 6977 |
| Solids, settleable | monthly average | report only (mL/L) | all year | 6977 |
| Solids, settleable | daily maximum | report only (mL/L) | all year | 6977 |
| Iron, total [as Fe] | daily minimum | report only (mg/L) | all year | 6977 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 6977 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 6977 |
| Manganese, total [as Mn] | daily minimum | report only (mg/L) | all year | 6977 |
| Manganese, total [as Mn] | monthly average | ≤ 2 mg/L | all year | 6977 |
| Manganese, total [as Mn] | daily maximum | ≤ 4 mg/L | all year | 6977 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/min) | all year | 6977 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 6977 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 6978 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 6978 |
| Solids, total suspended | daily minimum | report only (mg/L) | all year | 6978 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 6978 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 6978 |
| Solids, settleable | daily minimum | report only (mL/L) | all year | 6978 |
| Solids, settleable | monthly average | report only (mL/L) | all year | 6978 |
| Solids, settleable | daily maximum | report only (mL/L) | all year | 6978 |
| Iron, total [as Fe] | daily minimum | report only (mg/L) | all year | 6978 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 6978 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 6978 |
| Manganese, total [as Mn] | daily minimum | report only (mg/L) | all year | 6978 |
| Manganese, total [as Mn] | monthly average | ≤ 2 mg/L | all year | 6978 |
| Manganese, total [as Mn] | daily maximum | ≤ 4 mg/L | all year | 6978 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/min) | all year | 6978 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 6978 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 6979 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 6979 |
| Solids, total suspended | daily minimum | report only (mg/L) | all year | 6979 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 6979 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 6979 |
| Iron, total [as Fe] | daily minimum | report only (mg/L) | all year | 6979 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 6979 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 6979 |
| Manganese, total [as Mn] | daily minimum | report only (mg/L) | all year | 6979 |
| Manganese, total [as Mn] | monthly average | ≤ 2 mg/L | all year | 6979 |
| Manganese, total [as Mn] | daily maximum | ≤ 4 mg/L | all year | 6979 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/min) | all year | 6979 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 6979 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 6980 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 6980 |
| Solids, total suspended | daily minimum | report only (mg/L) | all year | 6980 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 6980 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 6980 |
| Iron, total [as Fe] | daily minimum | report only (mg/L) | all year | 6980 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 6980 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 6980 |
| Manganese, total [as Mn] | daily minimum | report only (mg/L) | all year | 6980 |
| Manganese, total [as Mn] | monthly average | ≤ 2 mg/L | all year | 6980 |
| Manganese, total [as Mn] | daily maximum | ≤ 4 mg/L | all year | 6980 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/min) | all year | 6980 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 6980 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 7200 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 7200 |
| Solids, total suspended | daily minimum | report only (mg/L) | all year | 7200 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 7200 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 7200 |
| Solids, settleable | daily minimum | report only (mL/L) | all year | 7200 |
| Solids, settleable | monthly average | report only (mL/L) | all year | 7200 |
| Solids, settleable | daily maximum | report only (mL/L) | all year | 7200 |
| Iron, total [as Fe] | daily minimum | report only (mg/L) | all year | 7200 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 7200 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 7200 |
| Manganese, total [as Mn] | daily minimum | report only (mg/L) | all year | 7200 |
| Manganese, total [as Mn] | monthly average | ≤ 2 mg/L | all year | 7200 |
| Manganese, total [as Mn] | daily maximum | ≤ 4 mg/L | all year | 7200 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/min) | all year | 7200 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 7200 |
Cited limits by parameter: Virginia's rules and the federal ones.
Same industry: the 169 Coal Mining permits in Virginia.
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Your permit document is the final word. As JSON: /api/v1/permits/VAM082010 · MCP: https://passage-data.com/mcp