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Bituminous Coal And Lignite - Surface, Prestonsburg, Kentucky. NPDES permit KY0107760, in force until Jul 31, 2030. Last 12 months: no values over a limit, 6 of 89 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Specific conductance | monthly average | report only (uS/cm) | all year | 003 |
| Specific conductance | daily maximum | report only (uS/cm) | all year | 003 |
| pH | minimum | ≥ 6 SU | all year | 003 |
| pH | daily 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 | daily maximum | ≤ .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) | all year | 003 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | 003 |
| Iron, total recoverable | monthly average | ≤ 3 mg/L | all year | 003 |
| Iron, total recoverable | daily maximum | ≤ 4 mg/L | all year | 003 |
| Selenium, total recoverable | monthly average | report only (ug/L) | all year | 003 |
| Selenium, dry weight | daily maximum | ≤ 8.6 mg/kg | all year | 003 |
| Selenium, dry weight | daily maximum | ≤ 8.6 mg/kg | all year | 003 |
| Selenium, dry weight | daily maximum | ≤ 11.3 mg/kg | all year | 003 |
| Selenium, dry weight | daily maximum | ≤ 11.3 mg/kg | all year | 003 |
| Manganese, total recoverable | monthly average | ≤ 2 mg/L | all year | 003 |
| Manganese, total recoverable | daily maximum | ≤ 4 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 |
| Date of Sample Collection | monthly average | report only (date) | all year | 003 |
| Date of Sample Collection | monthly average | report only (date) | all year | 003 |
| Date of Storm Event | monthly average | report only (date) | all year | 003 |
| Date of Storm Event | monthly average | report only (date) | all year | 003 |
| Precipitation volume | daily maximum | report only (in/d) | all year | 003 |
| Precipitation volume | daily maximum | report only (in/d) | all year | 003 |
| Report due [yrmoda] | monthly average | report only (N=0;Y=1) | all year | 003 |
| Toxicity, Chronic | daily maximum | ≤ 1 tox chronic | all year | 003 |
| Specific conductance | monthly average | report only (uS/cm) | all year | 004 |
| Specific conductance | daily maximum | report only (uS/cm) | all year | 004 |
| pH | minimum | ≥ 6 SU | all year | 004 |
| pH | daily maximum | ≤ 9 SU | all year | 004 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 004 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 004 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 004 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 004 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | 004 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | 004 |
| Iron, total recoverable | monthly average | ≤ 3 mg/L | all year | 004 |
| Iron, total recoverable | daily maximum | ≤ 4 mg/L | all year | 004 |
| Manganese, total recoverable | monthly average | ≤ 2 mg/L | all year | 004 |
| Manganese, total recoverable | daily maximum | ≤ 4 mg/L | all year | 004 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| Date of Sample Collection | monthly average | report only (date) | all year | 004 |
| Date of Sample Collection | monthly average | report only (date) | all year | 004 |
| Date of Storm Event | monthly average | report only (date) | all year | 004 |
| Date of Storm Event | monthly average | report only (date) | all year | 004 |
| Precipitation volume | daily maximum | report only (in/d) | all year | 004 |
| Precipitation volume | daily maximum | report only (in/d) | all year | 004 |
| Specific conductance | monthly average | report only (uS/cm) | all year | 005 |
| Specific conductance | daily maximum | report only (uS/cm) | all year | 005 |
| pH | minimum | ≥ 6 SU | all year | 005 |
| pH | daily maximum | ≤ 9 SU | all year | 005 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 005 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 005 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 005 |
| Solids, settleable | daily maximum | ≤ .5 mg/L | all year | 005 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | 005 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | 005 |
| Iron, total recoverable | monthly average | ≤ 3 mg/L | all year | 005 |
| Iron, total recoverable | daily maximum | ≤ 4 mg/L | all year | 005 |
| Manganese, total recoverable | monthly average | ≤ 2 mg/L | all year | 005 |
| Manganese, total recoverable | daily maximum | ≤ 4 mg/L | all year | 005 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| Date of Sample Collection | monthly average | report only (date) | all year | 005 |
| Date of Sample Collection | monthly average | report only (date) | all year | 005 |
| Date of Storm Event | monthly average | report only (date) | all year | 005 |
| Date of Storm Event | monthly average | report only (date) | all year | 005 |
| Precipitation volume | daily maximum | report only (in/d) | all year | 005 |
| Precipitation volume | daily maximum | report only (in/d) | all year | 005 |
| Specific conductance | monthly average | report only (uS/cm) | all year | 006 |
| Specific conductance | daily maximum | report only (uS/cm) | all year | 006 |
| pH | minimum | ≥ 6 SU | all year | 006 |
| pH | daily maximum | ≤ 9 SU | all year | 006 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 006 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 006 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 006 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 006 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | 006 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | 006 |
| Iron, total recoverable | monthly average | ≤ 3 mg/L | all year | 006 |
| Iron, total recoverable | daily maximum | ≤ 4 mg/L | all year | 006 |
| Manganese, total recoverable | monthly average | ≤ 2 mg/L | all year | 006 |
| Manganese, total recoverable | daily maximum | ≤ 4 mg/L | all year | 006 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| Date of Sample Collection | monthly average | report only (date) | all year | 006 |
| Date of Sample Collection | monthly average | report only (date) | all year | 006 |
| Date of Storm Event | monthly average | report only (date) | all year | 006 |
| Date of Storm Event | monthly average | report only (date) | all year | 006 |
| Precipitation volume | daily maximum | report only (in/d) | all year | 006 |
| Precipitation volume | daily maximum | report only (in/d) | all year | 006 |
| Specific conductance | monthly average | report only (uS/cm) | all year | 007 |
| Specific conductance | daily maximum | report only (uS/cm) | all year | 007 |
| pH | minimum | ≥ 6 SU | all year | 007 |
| pH | daily maximum | ≤ 9 SU | all year | 007 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 007 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 007 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 007 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 007 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | 007 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | 007 |
| Iron, total recoverable | monthly average | ≤ 3 mg/L | all year | 007 |
| Iron, total recoverable | daily maximum | ≤ 4 mg/L | all year | 007 |
| Manganese, total recoverable | monthly average | ≤ 2 mg/L | all year | 007 |
| Manganese, total recoverable | daily maximum | ≤ 4 mg/L | all year | 007 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007 |
| Date of Sample Collection | monthly average | report only (date) | all year | 007 |
| Date of Sample Collection | monthly average | report only (date) | all year | 007 |
| Date of Storm Event | monthly average | report only (date) | all year | 007 |
| Date of Storm Event | monthly average | report only (date) | all year | 007 |
| Precipitation volume | daily maximum | report only (in/d) | all year | 007 |
| Precipitation volume | daily maximum | report only (in/d) | all year | 007 |
| Specific conductance | monthly average | report only (uS/cm) | all year | 008 |
| Specific conductance | daily maximum | report only (uS/cm) | all year | 008 |
| pH | minimum | ≥ 6 SU | all year | 008 |
| pH | daily maximum | ≤ 9 SU | all year | 008 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 008 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 008 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 008 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 008 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | 008 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | 008 |
| Iron, total recoverable | monthly average | ≤ 3 mg/L | all year | 008 |
| Iron, total recoverable | daily maximum | ≤ 4 mg/L | all year | 008 |
| Selenium, total recoverable | monthly average | report only (ug/L) | all year | 008 |
| Selenium, dry weight | daily maximum | ≤ 8.6 mg/kg | all year | 008 |
| Selenium, dry weight | daily maximum | ≤ 8.6 mg/kg | all year | 008 |
| Selenium, dry weight | daily maximum | ≤ 11.3 mg/kg | all year | 008 |
| Selenium, dry weight | daily maximum | ≤ 11.3 mg/kg | all year | 008 |
| Manganese, total recoverable | monthly average | ≤ 2 mg/L | all year | 008 |
| Manganese, total recoverable | daily maximum | ≤ 4 mg/L | all year | 008 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 008 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 008 |
| Date of Sample Collection | monthly average | report only (date) | all year | 008 |
| Date of Sample Collection | monthly average | report only (date) | all year | 008 |
| Date of Storm Event | monthly average | report only (date) | all year | 008 |
| Date of Storm Event | monthly average | report only (date) | all year | 008 |
| Precipitation volume | daily maximum | report only (in/d) | all year | 008 |
| Precipitation volume | daily maximum | report only (in/d) | all year | 008 |
| Report due [yrmoda] | monthly average | report only (N=0;Y=1) | all year | 008 |
| Toxicity, Chronic | daily maximum | ≤ 1 tox chronic | all year | 008 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | I01 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | I01 |
| Turbidity | monthly average | report only (NTU) | all year | I01 |
| Turbidity | daily maximum | report only (NTU) | all year | I01 |
| Specific conductance | monthly average | report only (uS/cm) | all year | I01 |
| Specific conductance | daily maximum | report only (uS/cm) | all year | I01 |
| Oxygen, dissolved [DO] | minimum | report only (mg/L) | all year | I01 |
| pH | minimum | report only (SU) | all year | I01 |
| pH | maximum | report only (SU) | all year | I01 |
| Alkalinity, total [as CaCO3] | monthly average | report only (mg/L) | all year | I01 |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year | I01 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | I01 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | I01 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | I01 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | I01 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | I01 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | I01 |
| Iron, total recoverable | monthly average | report only (mg/L) | all year | I01 |
| Iron, total recoverable | daily maximum | report only (mg/L) | all year | I01 |
| Selenium, total recoverable | monthly average | report only (ug/L) | all year | I01 |
| Selenium, total recoverable | daily maximum | report only (ug/L) | all year | I01 |
| Biotic Index | minimum | ≥ 54 diverse index | all year | I01 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | I01 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | I01 |
| Report due [yrmoda] | value | report only (N=0;Y=1) | all year | I01 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | I02 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | I02 |
| Turbidity | monthly average | report only (NTU) | all year | I02 |
| Turbidity | daily maximum | report only (NTU) | all year | I02 |
| Specific conductance | monthly average | report only (uS/cm) | all year | I02 |
| Specific conductance | daily maximum | report only (uS/cm) | all year | I02 |
| Oxygen, dissolved [DO] | minimum | report only (mg/L) | all year | I02 |
| pH | minimum | report only (SU) | all year | I02 |
| pH | maximum | report only (SU) | all year | I02 |
| Alkalinity, total [as CaCO3] | monthly average | report only (mg/L) | all year | I02 |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year | I02 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | I02 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | I02 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | I02 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | I02 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | I02 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | I02 |
| Iron, total recoverable | monthly average | report only (mg/L) | all year | I02 |
| Iron, total recoverable | daily maximum | report only (mg/L) | all year | I02 |
| Selenium, total recoverable | monthly average | report only (ug/L) | all year | I02 |
| Selenium, total recoverable | daily maximum | report only (ug/L) | all year | I02 |
| Biotic Index | minimum | ≥ 21 diverse index | all year | I02 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | I02 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | I02 |
| Report due [yrmoda] | value | report only (N=0;Y=1) | all year | I02 |
| Specific conductance | monthly average | report only (uS/cm) | all year | I03 |
| Specific conductance | daily maximum | report only (uS/cm) | all year | I03 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | I03 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | I03 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | I03 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | I03 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | I03 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | I03 |
Cited limits by parameter: Kentucky's rules and the federal ones.
Same industry: the 66 Coal Mining permits in Kentucky.
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