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Coal Mining Services, Mount Vernon, Indiana. NPDES permit IN0063738 expired Mar 31, 2026; its limits still apply. 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 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 |
| Iron, total recoverable | monthly average | ≤ 3 mg/L | all year | 001 |
| Iron, total recoverable | daily maximum | ≤ 6 mg/L | all year | 001 |
| Nickel, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Nickel, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Zinc, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Lead, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Lead, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Copper, total recoverable | monthly average | report only (mg/L) | all year | 001 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Manganese, total recoverable | monthly average | ≤ 2 mg/L | all year | 001 |
| Manganese, total recoverable | daily maximum | ≤ 4 mg/L | 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, total | monthly total | report only (MGD) | all year | 001 |
| pH | daily maximum | report only (SU) | Mar, Jun, Sep, Dec | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 002 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 002 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 002 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 002 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 002 |
| Iron, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 002 |
| Lead, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 002 |
| Copper, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 002 |
| Manganese, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 002 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 002 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 002 |
| Storm water flow | daily maximum | report only (MGD) | Mar, Jun, Sep, Dec | 002 |
| pH | daily maximum | report only (SU) | Mar, Jun, Sep, Dec | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Iron, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Lead, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Copper, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Manganese, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Storm water flow | daily maximum | report only (MGD) | Mar, Jun, Sep, Dec | 003 |
| pH | daily maximum | report only (SU) | Mar, Jun, Sep, Dec | 004 |
| Solids, total suspended | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 004 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 004 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 004 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 004 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 004 |
| Iron, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 004 |
| Manganese, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 004 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 004 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 004 |
| Storm water flow | daily maximum | report only (MGD) | Mar, Jun, Sep, Dec | 004 |
Cited limits by parameter: Indiana's rules and the federal ones.
Same industry: the 38 Coal Mining permits in Indiana.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/IN0063738 · MCP: https://passage-data.com/mcp