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Bituminous Coal And Lignite - Surface, Dunlap, Tennessee. NPDES permit TN0062782, in force until Mar 31, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Specific conductance | monthly average | report only (uS/cm) (alert, not enforceable) | all year | 001 |
| Specific conductance | daily maximum | report only (uS/cm) (alert, not enforceable) | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 001 |
| Solids, settleable | monthly average | ≤ .5 mL/L | all year | 001 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 001 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 001 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 001 |
| Manganese, total [as Mn] | monthly average | ≤ 2 mg/L | all year | 001 |
| Manganese, total [as Mn] | daily maximum | ≤ 4 mg/L | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/min) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 001 |
| Specific conductance | monthly average | report only (uS/cm) (alert, not enforceable) | all year | 003 |
| Specific conductance | daily maximum | report only (uS/cm) (alert, not enforceable) | all year | 003 |
| pH | minimum | ≥ 6 SU | all year | 003 |
| pH | maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 003 |
| Solids, settleable | monthly average | ≤ .5 mL/L | all year | 003 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 003 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 003 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 003 |
| Manganese, total [as Mn] | monthly average | ≤ 2 mg/L | all year | 003 |
| Manganese, total [as Mn] | daily maximum | ≤ 4 mg/L | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/min) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 003 |
| Specific conductance | monthly average | report only (uS/cm) (alert, not enforceable) | all year | 02A |
| Specific conductance | daily maximum | report only (uS/cm) (alert, not enforceable) | all year | 02A |
| pH | minimum | ≥ 6 SU | all year | 02A |
| pH | maximum | ≤ 9 SU | all year | 02A |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 02A |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) (alert, not enforceable) | all year | 02A |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) (alert, not enforceable) | all year | 02A |
| Iron, total [as Fe] | monthly average | report only (mg/L) (alert, not enforceable) | all year | 02A |
| Iron, total [as Fe] | daily maximum | report only (mg/L) (alert, not enforceable) | all year | 02A |
| Manganese, total [as Mn] | monthly average | report only (mg/L) (alert, not enforceable) | all year | 02A |
| Manganese, total [as Mn] | daily maximum | report only (mg/L) (alert, not enforceable) | all year | 02A |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/min) | all year | 02A |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 02A |
Cited limits by parameter: Tennessee's rules and the federal ones.
Same industry: the 30 Coal Mining permits in Tennessee.
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