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Bituminous Coal And Lignite - Surface, Mackey, Indiana. NPDES permit ING040038, in force until Jun 30, 2029. Last 12 months: over a limit once (last February 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| February 2026 | Iron, total [as Fe], daily average | 4.12 mg/L | ≤ 3 mg/L | 37% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | daily minimum | ≥ 6 SU | all year | 039 |
| pH | daily maximum | ≤ 9 SU | all year | 039 |
| Solids, total suspended | daily average | ≤ 35 mg/L | all year | 039 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 039 |
| Solids, settleable | daily average | report only (mL/L) | all year | 039 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 039 |
| Iron, total [as Fe] | daily average | ≤ 3 mg/L | all year | 039 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 039 |
| Duration | monthly total | report only (d/mo) | all year | 039 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 039 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 039 |
| Precipitation volume | monthly total | report only (in/mo) | all year | 039 |
| pH | daily minimum | ≥ 6 SU | Mar, Jun, Sep, Dec | 060 |
| pH | daily maximum | ≤ 9 SU | Mar, Jun, Sep, Dec | 060 |
| Solids, settleable | daily average | report only (mL/L) | Mar, Jun, Sep, Dec | 060 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | Mar, Jun, Sep, Dec | 060 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | Mar, Jun, Sep, Dec | 060 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Mar, Jun, Sep, Dec | 060 |
| pH | daily minimum | ≥ 6 SU | all year | 066 |
| pH | daily maximum | ≤ 9 SU | all year | 066 |
| Solids, total suspended | daily average | ≤ 35 mg/L | all year | 066 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 066 |
| Solids, settleable | daily average | report only (mL/L) | all year | 066 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 066 |
| Iron, total [as Fe] | daily average | ≤ 3 mg/L | all year | 066 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 066 |
| Duration | monthly total | report only (d/mo) | all year | 066 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 066 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 066 |
| Precipitation volume | monthly total | report only (in/mo) | all year | 066 |
| pH | daily minimum | ≥ 6 SU | all year | 067 |
| pH | daily maximum | ≤ 9 SU | all year | 067 |
| Solids, total suspended | daily average | ≤ 35 mg/L | all year | 067 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 067 |
| Solids, settleable | daily average | report only (mL/L) | all year | 067 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 067 |
| Iron, total [as Fe] | daily average | ≤ 3 mg/L | all year | 067 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 067 |
| Duration | monthly total | report only (d/mo) | all year | 067 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 067 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 067 |
| Precipitation volume | monthly total | report only (in/mo) | all year | 067 |
| pH | daily minimum | ≥ 6 SU | all year | 068 |
| pH | daily maximum | ≤ 9 SU | all year | 068 |
| Solids, total suspended | daily average | ≤ 35 mg/L | all year | 068 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 068 |
| Solids, settleable | daily average | report only (mL/L) | all year | 068 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 068 |
| Iron, total [as Fe] | daily average | ≤ 3 mg/L | all year | 068 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 068 |
| Duration | monthly total | report only (d/mo) | all year | 068 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 068 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 068 |
| Precipitation volume | monthly total | report only (in/mo) | all year | 068 |
| pH | daily minimum | ≥ 6 SU | all year | 070 |
| pH | daily maximum | ≤ 9 SU | all year | 070 |
| Solids, total suspended | daily average | ≤ 35 mg/L | all year | 070 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 070 |
| Solids, settleable | daily average | report only (mL/L) | all year | 070 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 070 |
| Iron, total [as Fe] | daily average | ≤ 3 mg/L | all year | 070 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 070 |
| Duration | monthly total | report only (d/mo) | all year | 070 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 070 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 070 |
| Precipitation volume | monthly total | report only (in/mo) | all year | 070 |
| pH | daily minimum | ≥ 6 SU | all year | 085 |
| pH | daily maximum | ≤ 9 SU | all year | 085 |
| Solids, total suspended | daily average | ≤ 35 mg/L | all year | 085 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 085 |
| Solids, settleable | daily average | report only (mL/L) | all year | 085 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 085 |
| Iron, total [as Fe] | daily average | ≤ 3 mg/L | all year | 085 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 085 |
| Duration | monthly total | report only (d/mo) | all year | 085 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 085 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 085 |
| Precipitation volume | monthly total | report only (in/mo) | all year | 085 |
| pH | daily minimum | ≥ 6 SU | all year | 088 |
| pH | daily maximum | ≤ 9 SU | all year | 088 |
| Solids, total suspended | daily average | ≤ 35 mg/L | all year | 088 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 088 |
| Solids, settleable | daily average | report only (mL/L) | all year | 088 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 088 |
| Iron, total [as Fe] | daily average | ≤ 3 mg/L | all year | 088 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 088 |
| Duration | monthly total | report only (d/mo) | all year | 088 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 088 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 088 |
| Precipitation volume | monthly total | report only (in/mo) | all year | 088 |
| pH | daily minimum | ≥ 6 SU | all year | 136 |
| pH | daily maximum | ≤ 9 SU | all year | 136 |
| Solids, total suspended | daily average | ≤ 35 mg/L | all year | 136 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 136 |
| Solids, settleable | daily average | report only (mL/L) | all year | 136 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 136 |
| Iron, total [as Fe] | daily average | ≤ 3 mg/L | all year | 136 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 136 |
| Duration | monthly total | report only (d/mo) | all year | 136 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 136 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 136 |
| Precipitation volume | monthly total | report only (in/mo) | all year | 136 |
Cited limits by parameter: Indiana's rules and the federal ones.
Same industry: the 38 Coal Mining permits in Indiana.
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