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Bituminous Coal And Lignite - Surface, Oak Hill, West Virginia. NPDES permit WV1024795, in force until Feb 6, 2027. Last 12 months: over a limit once (last June 2026), 5 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit |
|---|---|---|---|
| June 2026 | pH, monthly maximum | 730 SU | ≤ 9 SU |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Flow rate | monthly average | report only (gal/min) | all year | 001 |
| Flow rate | monthly maximum | report only (gal/min) | all year | 001 |
| pH | monthly minimum | ≥ 6 SU | all year | 001 |
| pH | monthly maximum | ≤ 9 SU | all year | 001 |
| Solids, settleable | monthly maximum | ≤ .5 mL/L | all year | 001 |
| Iron, total [as Fe] | monthly average | ≤ 1.42 mg/L | all year | 001 |
| Iron, total [as Fe] | monthly maximum | ≤ 2.46 mg/L | all year | 001 |
| Flow rate | monthly average | report only (gal/min) | all year | 002 |
| Flow rate | monthly maximum | report only (gal/min) | all year | 002 |
| pH | monthly minimum | ≥ 6 SU | all year | 002 |
| pH | monthly maximum | ≤ 9 SU | all year | 002 |
| Solids, settleable | monthly maximum | ≤ .5 mL/L | all year | 002 |
| Iron, total [as Fe] | monthly average | ≤ 1.42 mg/L | all year | 002 |
| Iron, total [as Fe] | monthly maximum | ≤ 2.46 mg/L | all year | 002 |
| 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, settleable | monthly average | report only (mL/L) | all year | 004 |
| Solids, settleable | monthly maximum | ≤ .5 mL/L | all year | 004 |
| Iron, total [as Fe] | monthly average | ≤ 1.42 mg/L | all year | 004 |
| Iron, total [as Fe] | monthly maximum | ≤ 2.46 mg/L | all year | 004 |
| Flow rate | monthly average | report only (gal/min) | all year | 008 |
| Flow rate | monthly maximum | report only (gal/min) | all year | 008 |
| pH | monthly minimum | ≥ 6 SU | all year | 008 |
| pH | monthly maximum | ≤ 9 SU | all year | 008 |
| Solids, settleable | monthly maximum | ≤ .5 mL/L | all year | 008 |
| Iron, total [as Fe] | monthly minimum | report only (mg/L) | all year | 008 |
| Iron, total [as Fe] | monthly average | ≤ 1.42 mg/L | all year | 008 |
| Iron, total [as Fe] | monthly maximum | ≤ 2.46 mg/L | all year | 008 |
| Flow rate | monthly average | report only (gal/min) | all year | 010 |
| Flow rate | monthly maximum | report only (gal/min) | all year | 010 |
| pH | monthly minimum | ≥ 6 SU | all year | 010 |
| pH | monthly maximum | ≤ 9 SU | all year | 010 |
| Solids, settleable | monthly maximum | ≤ .5 mL/L | all year | 010 |
| Iron, total [as Fe] | monthly minimum | report only (mg/L) | all year | 010 |
| Iron, total [as Fe] | monthly average | ≤ 1.42 mg/L | all year | 010 |
| Iron, total [as Fe] | monthly maximum | ≤ 2.46 mg/L | all year | 010 |
| Aluminum, total [as Al] | monthly average | ≤ .43 mg/L | all year | 010 |
| Aluminum, total [as Al] | monthly maximum | ≤ .75 mg/L | all year | 010 |
| Aluminum, dissolved [as Al] | monthly minimum | report only (mg/L) | all year | 010 |
| Aluminum, dissolved [as Al] | monthly average | report only (mg/L) | all year | 010 |
| Aluminum, dissolved [as Al] | monthly maximum | report only (mg/L) | all year | 010 |
| Flow rate | monthly average | report only (gal/min) | all year | 030 |
| Flow rate | monthly maximum | report only (gal/min) | all year | 030 |
| pH | monthly minimum | ≥ 6 SU | all year | 030 |
| pH | monthly maximum | ≤ 9 SU | all year | 030 |
| Solids, settleable | monthly average | report only (mL/L) | all year | 030 |
| Solids, settleable | monthly maximum | ≤ .5 mL/L | all year | 030 |
| Iron, total [as Fe] | monthly average | ≤ 1.42 mg/L | all year | 030 |
| Iron, total [as Fe] | monthly maximum | ≤ 2.46 mg/L | all year | 030 |
| Flow rate | monthly average | report only (gal/min) | all year | 050 |
| Flow rate | monthly maximum | report only (gal/min) | all year | 050 |
| pH | monthly minimum | ≥ 6 SU | all year | 050 |
| pH | monthly maximum | ≤ 9 SU | all year | 050 |
| Solids, settleable | monthly average | report only (mL/L) | all year | 050 |
| Solids, settleable | monthly maximum | ≤ .5 mL/L | all year | 050 |
| Iron, total [as Fe] | monthly average | ≤ 1.42 mg/L | all year | 050 |
| Iron, total [as Fe] | monthly maximum | ≤ 2.46 mg/L | all year | 050 |
| Flow rate | monthly average | report only (gal/min) | all year | 060 |
| Flow rate | monthly maximum | report only (gal/min) | all year | 060 |
| pH | monthly minimum | ≥ 6 SU | all year | 060 |
| pH | monthly maximum | ≤ 9 SU | all year | 060 |
| Solids, settleable | monthly average | report only (mL/L) | all year | 060 |
| Solids, settleable | monthly maximum | ≤ .5 mL/L | all year | 060 |
| Iron, total [as Fe] | monthly average | ≤ 1.42 mg/L | all year | 060 |
| Iron, total [as Fe] | monthly maximum | ≤ 2.46 mg/L | all year | 060 |
| Aluminum, total [as Al] | monthly average | ≤ .43 mg/L | all year | 060 |
| Aluminum, total [as Al] | monthly maximum | ≤ .75 mg/L | all year | 060 |
| Aluminum, dissolved [as Al] | monthly average | report only (mg/L) | all year | 060 |
| Aluminum, dissolved [as Al] | monthly maximum | report only (mg/L) | all year | 060 |
| Flow rate | monthly average | report only (gal/min) | all year | 070 |
| Flow rate | monthly maximum | report only (gal/min) | all year | 070 |
| pH | monthly minimum | ≥ 6 SU | all year | 070 |
| pH | monthly maximum | ≤ 9 SU | all year | 070 |
| Solids, settleable | monthly average | report only (mL/L) | all year | 070 |
| Solids, settleable | monthly maximum | ≤ .5 mL/L | all year | 070 |
| Iron, total [as Fe] | monthly average | ≤ 1.42 mg/L | all year | 070 |
| Iron, total [as Fe] | monthly maximum | ≤ 2.46 mg/L | all year | 070 |
| Aluminum, total [as Al] | monthly average | ≤ .43 mg/L | all year | 070 |
| Aluminum, total [as Al] | monthly maximum | ≤ .75 mg/L | all year | 070 |
| Aluminum, dissolved [as Al] | monthly average | report only (mg/L) | all year | 070 |
| Aluminum, dissolved [as Al] | monthly maximum | report only (mg/L) | all year | 070 |
| Flow rate | monthly average | report only (gal/min) | all year | 080 |
| Flow rate | monthly maximum | report only (gal/min) | all year | 080 |
| pH | monthly minimum | ≥ 6 SU | all year | 080 |
| pH | monthly maximum | ≤ 9 SU | all year | 080 |
| Solids, settleable | monthly average | report only (mL/L) | all year | 080 |
| Solids, settleable | monthly maximum | ≤ .5 mL/L | all year | 080 |
| Iron, total [as Fe] | monthly average | ≤ 1.42 mg/L | all year | 080 |
| Iron, total [as Fe] | monthly maximum | ≤ 2.46 mg/L | all year | 080 |
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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