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Bituminous Coal And Lignite - Surface, Natchitoches Parish, Louisiana. NPDES permit LA0125059, in force until Nov 30, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 125 mg/L | all year | 001 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 001 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 001 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 001 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | 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, total suspended | daily maximum | ≤ 70 mg/L | all year | 001 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 001 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | 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 |
| Iron, total [as Fe] | daily maximum | ≤ 6 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 | 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 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 125 mg/L | all year | 002 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 002 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 002 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 002 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 002 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 002 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 002 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 002 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 002 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 002 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 003 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 003 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 003 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | 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, total suspended | daily maximum | ≤ 70 mg/L | all year | 003 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | 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 |
| Iron, total [as Fe] | daily maximum | ≤ 6 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 | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 004 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 004 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 004 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 004 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | 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, total suspended | daily maximum | ≤ 70 mg/L | all year | 004 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 004 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 004 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 004 |
| Iron, total [as Fe] | daily maximum | ≤ 6 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 | monthly average | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 005 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 005 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 005 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 005 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | 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, total suspended | daily maximum | ≤ 70 mg/L | all year | 005 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 005 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 005 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 005 |
| Iron, total [as Fe] | daily maximum | ≤ 6 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 | monthly average | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 006 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 006 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 006 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 006 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | 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, total suspended | daily maximum | ≤ 70 mg/L | all year | 006 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 006 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 006 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 006 |
| Iron, total [as Fe] | daily maximum | ≤ 6 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 | monthly average | report only (MGD) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 007 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 007 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 007 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 007 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | 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, total suspended | daily maximum | ≤ 70 mg/L | all year | 007 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 007 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 007 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 007 |
| Iron, total [as Fe] | daily maximum | ≤ 6 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 | monthly average | report only (MGD) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 008 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 008 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 008 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 008 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | 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, total suspended | daily maximum | ≤ 70 mg/L | all year | 008 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 008 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 008 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 008 |
| Iron, total [as Fe] | daily maximum | ≤ 6 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 | monthly average | report only (MGD) | all year | 008 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 008 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 008 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 009 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 009 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 009 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 009 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 009 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 009 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 009 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 009 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 009 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 009 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 009 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 009 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 009 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 009 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 009 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 009 |
Cited limits by parameter: Louisiana's rules and the federal ones.
Same industry: the 3 Coal Mining permits in Louisiana.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/LA0125059 · MCP: https://passage-data.com/mcp