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Coal Mining Services, Oaktown, Indiana. NPDES permit IN0064629, in force until Aug 31, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily minimum | report only (SU) | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| pH | daily maximum | report only (SU) | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 001 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 001 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 001 |
| Solids, settleable | daily maximum | report only (mL/L) | all year | 001 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 001 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 001 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 001 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 001 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 001 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 001 |
| Chloride [as Cl] | monthly average | ≤ 330 mg/L | all year | 001 |
| Chloride [as Cl] | monthly average | ≤ 330 mg/L | all year | 001 |
| Chloride [as Cl] | monthly average | ≤ 330 mg/L | all year | 001 |
| Chloride [as Cl] | daily maximum | ≤ 580 mg/L | all year | 001 |
| Chloride [as Cl] | daily maximum | ≤ 580 mg/L | all year | 001 |
| Chloride [as Cl] | daily maximum | ≤ 580 mg/L | all year | 001 |
| Sulfate, total [as SO4] | monthly average | ≤ 1500 mg/L | all year | 001 |
| Sulfate, total [as SO4] | monthly average | ≤ 1500 mg/L | all year | 001 |
| Sulfate, total [as SO4] | monthly average | ≤ 1500 mg/L | all year | 001 |
| Sulfate, total [as SO4] | daily maximum | ≤ 2600 mg/L | all year | 001 |
| Sulfate, total [as SO4] | daily maximum | ≤ 2600 mg/L | all year | 001 |
| Sulfate, total [as SO4] | daily maximum | ≤ 2600 mg/L | all year | 001 |
| Iron, total recoverable | monthly average | ≤ 2.4 mg/L | all year | 001 |
| Iron, total recoverable | monthly average | ≤ 2.4 mg/L | all year | 001 |
| Iron, total recoverable | monthly average | ≤ 2.4 mg/L | all year | 001 |
| Iron, total recoverable | daily maximum | ≤ 4.1 mg/L | all year | 001 |
| Iron, total recoverable | daily maximum | ≤ 4.1 mg/L | all year | 001 |
| Iron, total recoverable | daily maximum | ≤ 4.1 mg/L | all year | 001 |
| Nickel, total recoverable | monthly average | ≤ .1 mg/L | all year | 001 |
| Nickel, total recoverable | monthly average | ≤ .1 mg/L | all year | 001 |
| Nickel, total recoverable | monthly average | ≤ .1 mg/L | all year | 001 |
| Nickel, total recoverable | daily maximum | ≤ .24 mg/L | all year | 001 |
| Nickel, total recoverable | daily maximum | ≤ .24 mg/L | all year | 001 |
| Nickel, total recoverable | daily maximum | ≤ .24 mg/L | all year | 001 |
| Zinc, total recoverable | monthly average | ≤ .33 mg/L | all year | 001 |
| Zinc, total recoverable | monthly average | ≤ .33 mg/L | all year | 001 |
| Zinc, total recoverable | monthly average | ≤ .33 mg/L | all year | 001 |
| Zinc, total recoverable | daily maximum | ≤ .56 mg/L | all year | 001 |
| Zinc, total recoverable | daily maximum | ≤ .56 mg/L | all year | 001 |
| Zinc, total recoverable | daily maximum | ≤ .56 mg/L | all year | 001 |
| Aluminum, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Aluminum, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Aluminum, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Aluminum, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Aluminum, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Aluminum, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Copper, total recoverable | monthly average | ≤ .037 mg/L | all year | 001 |
| Copper, total recoverable | monthly average | ≤ .037 mg/L | all year | 001 |
| Copper, total recoverable | monthly average | ≤ .037 mg/L | all year | 001 |
| Copper, total recoverable | daily maximum | ≤ .063 mg/L | all year | 001 |
| Copper, total recoverable | daily maximum | ≤ .063 mg/L | all year | 001 |
| Copper, total recoverable | daily maximum | ≤ .063 mg/L | all year | 001 |
| Manganese, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Manganese, total recoverable | monthly average | ≤ 2 mg/L | all year | 001 |
| Manganese, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Manganese, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Manganese, total recoverable | daily maximum | ≤ 4 mg/L | all year | 001 |
| Manganese, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Duration | monthly total | report only (d/mo) | all year | 001 |
| Duration | monthly total | report only (d/mo) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Precipitation volume | monthly total | report only (in/mo) | all year | 001 |
| Precipitation volume | monthly total | report only (in/mo) | all year | 001 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 001 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 001 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 003 |
| pH | daily maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 003 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 003 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 003 |
| Chloride [as Cl] | monthly average | ≤ 330 mg/L | all year | 003 |
| Chloride [as Cl] | daily maximum | ≤ 580 mg/L | all year | 003 |
| Sulfate, total [as SO4] | monthly average | ≤ 1500 mg/L | all year | 003 |
| Sulfate, total [as SO4] | daily maximum | ≤ 2600 mg/L | all year | 003 |
| Iron, total recoverable | monthly average | report only (mg/L) | all year | 003 |
| Iron, total recoverable | daily maximum | report only (mg/L) | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Flow, augmented water | monthly average | report only (MGD) | all year | 003 |
| Flow, augmented water | daily maximum | report only (MGD) | all year | 003 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 003 |
| pH | daily minimum | ≥ 6 SU | all year | 103 |
| pH | daily minimum | ≥ 6 SU | all year | 103 |
| pH | daily minimum | ≥ 6 SU | all year | 103 |
| pH | daily maximum | ≤ 9 SU | all year | 103 |
| pH | daily maximum | ≤ 9 SU | all year | 103 |
| pH | daily maximum | ≤ 9 SU | all year | 103 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 103 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 103 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 103 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 103 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 103 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 103 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 103 |
| Solids, settleable | daily maximum | report only (mL/L) | all year | 103 |
| Iron, total recoverable | monthly average | report only (mg/L) | all year | 103 |
| Iron, total recoverable | monthly average | ≤ 3 mg/L | all year | 103 |
| Iron, total recoverable | monthly average | report only (mg/L) | all year | 103 |
| Iron, total recoverable | daily maximum | report only (mg/L) | all year | 103 |
| Iron, total recoverable | daily maximum | ≤ 6 mg/L | all year | 103 |
| Iron, total recoverable | daily maximum | report only (mg/L) | all year | 103 |
| Duration | monthly total | report only (d/mo) | all year | 103 |
| Duration | monthly total | report only (d/mo) | all year | 103 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 103 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 103 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 103 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 103 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 103 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 103 |
| Precipitation volume | monthly total | report only (in/mo) | all year | 103 |
| Precipitation volume | monthly total | report only (in/mo) | all year | 103 |
Cited limits by parameter: Indiana's rules and the federal ones.
Same industry: the 38 Coal Mining permits in Indiana.
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Your permit document is the final word. As JSON: /api/v1/permits/IN0064629 · MCP: https://passage-data.com/mcp