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Bituminous Coal And Lignite - Surface, Mason, West Virginia. NPDES permit WV0092941 expired Mar 31, 2025; its limits still apply. Last 12 months: no values over a limit, 258 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Flow rate | monthly average | report only (gal/min) | all year | 004 |
| Flow rate | monthly maximum | report only (gal/min) | all year | 004 |
| pH | monthly minimum | ≥ 6 SU | all year | 004 |
| pH | monthly maximum | ≤ 9 SU | all year | 004 |
| Solids, total suspended | monthly minimum | report only (mg/L) | all year | 004 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 004 |
| Solids, total suspended | monthly maximum | ≤ 70 mg/L | all year | 004 |
| Solids, settleable | monthly maximum | ≤ .5 mL/L | all year | 004 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 004 |
| Iron, total [as Fe] | monthly maximum | ≤ 6 mg/L | all year | 004 |
| Aluminum, total [as Al] | monthly average | ≤ .43 mg/L | all year | 004 |
| Aluminum, total [as Al] | monthly maximum | ≤ .75 mg/L | all year | 004 |
| Aluminum, dissolved [as Al] | monthly minimum | report only (mg/L) | all year | 004 |
| Aluminum, dissolved [as Al] | monthly average | report only (mg/L) | all year | 004 |
| Aluminum, dissolved [as Al] | monthly maximum | report only (mg/L) | all year | 004 |
| Stream flow, instantaneous | monthly average | report only (cfs) | all year | DLFLC |
| Stream flow, instantaneous | monthly maximum | report only (cfs) | all year | DLFLC |
| Specific conductance | monthly average | report only (umho/cm) | all year | DLFLC |
| Specific conductance | monthly maximum | report only (umho/cm) | all year | DLFLC |
| pH | monthly minimum | report only (SU) | all year | DLFLC |
| pH | monthly maximum | report only (SU) | all year | DLFLC |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | DLFLC |
| Sulfate, total [as SO4] | monthly maximum | report only (mg/L) | all year | DLFLC |
| Iron, total [as Fe] | monthly minimum | report only (mg/L) | all year | DLFLC |
| Iron, total [as Fe] | monthly average | report only (mg/L) | all year | DLFLC |
| Iron, total [as Fe] | monthly maximum | report only (mg/L) | all year | DLFLC |
| Aluminum, total [as Al] | monthly minimum | report only (mg/L) | all year | DLFLC |
| Aluminum, total [as Al] | monthly average | report only (mg/L) | all year | DLFLC |
| Aluminum, total [as Al] | monthly maximum | report only (mg/L) | all year | DLFLC |
| Aluminum, dissolved [as Al] | monthly minimum | report only (mg/L) | all year | DLFLC |
| Aluminum, dissolved [as Al] | monthly average | report only (mg/L) | all year | DLFLC |
| Aluminum, dissolved [as Al] | monthly maximum | report only (mg/L) | all year | DLFLC |
| Solids, total dissolved | monthly average | report only (mg/L) | all year | DLFLC |
| Solids, total dissolved | monthly maximum | report only (mg/L) | all year | DLFLC |
| Stream flow, instantaneous | monthly average | report only (cfs) | all year | ULFLC2 |
| Stream flow, instantaneous | monthly maximum | report only (cfs) | all year | ULFLC2 |
| Specific conductance | monthly average | report only (umho/cm) | all year | ULFLC2 |
| Specific conductance | monthly maximum | report only (umho/cm) | all year | ULFLC2 |
| pH | monthly minimum | report only (SU) | all year | ULFLC2 |
| pH | monthly maximum | report only (SU) | all year | ULFLC2 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | ULFLC2 |
| Sulfate, total [as SO4] | monthly maximum | report only (mg/L) | all year | ULFLC2 |
| Iron, total [as Fe] | monthly minimum | report only (mg/L) | all year | ULFLC2 |
| Iron, total [as Fe] | monthly average | report only (mg/L) | all year | ULFLC2 |
| Iron, total [as Fe] | monthly maximum | report only (mg/L) | all year | ULFLC2 |
| Manganese, total [as Mn] | monthly minimum | report only (mg/L) | all year | ULFLC2 |
| Manganese, total [as Mn] | monthly average | report only (mg/L) | all year | ULFLC2 |
| Manganese, total [as Mn] | monthly maximum | report only (mg/L) | all year | ULFLC2 |
| Aluminum, total [as Al] | monthly minimum | report only (mg/L) | all year | ULFLC2 |
| Aluminum, total [as Al] | monthly average | report only (mg/L) | all year | ULFLC2 |
| Aluminum, total [as Al] | monthly maximum | report only (mg/L) | all year | ULFLC2 |
| Aluminum, dissolved [as Al] | monthly minimum | report only (mg/L) | all year | ULFLC2 |
| Aluminum, dissolved [as Al] | monthly average | report only (mg/L) | all year | ULFLC2 |
| Aluminum, dissolved [as Al] | monthly maximum | report only (mg/L) | all year | ULFLC2 |
| Solids, total dissolved | monthly average | report only (mg/L) | all year | ULFLC2 |
| Solids, total dissolved | monthly maximum | report only (mg/L) | all year | ULFLC2 |
Cited limits by parameter: West Virginia's rules and the federal ones.
Same industry: the 1,301 Coal Mining permits in West Virginia.
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Your permit document is the final word. As JSON: /api/v1/permits/WV0092941 · MCP: https://passage-data.com/mcp