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Bituminous Coal And Lignite - Surface, Ava, Illinois. NPDES permit IL0077381, in force until Dec 31, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | minimum | ≥ 6.5 SU | all year | 026 |
| pH | minimum | ≥ 6.5 SU | all year | 026 |
| pH | quarterly minimum | ≥ 6 SU | all year | 026 |
| pH | quarterly minimum | ≥ 6 SU | all year | 026 |
| pH | maximum | ≤ 9 SU | all year | 026 |
| pH | maximum | ≤ 9 SU | all year | 026 |
| pH | quarterly maximum | ≤ 9 SU | all year | 026 |
| pH | quarterly maximum | ≤ 9 SU | all year | 026 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 026 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 026 |
| Solids, settleable | quarterly maximum | ≤ .5 mL/L | all year | 026 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 026 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 026 |
| Hardness, total [as CaCO3] | quarterly maximum | report only (mg/L) | all year | 026 |
| Hardness, total [as CaCO3] | quarterly maximum | report only (mg/L) | all year | 026 |
| Chloride [as Cl] | daily maximum | ≤ 500 mg/L | all year | 026 |
| Chloride [as Cl] | daily maximum | ≤ 500 mg/L | all year | 026 |
| Chloride [as Cl] | quarterly maximum | ≤ 500 mg/L | all year | 026 |
| Chloride [as Cl] | quarterly maximum | ≤ 500 mg/L | all year | 026 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1188 mg/L | all year | 026 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1188 mg/L | all year | 026 |
| Sulfate, total [as SO4] | quarterly maximum | ≤ 1188 mg/L | all year | 026 |
| Sulfate, total [as SO4] | quarterly maximum | ≤ 1188 mg/L | all year | 026 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 026 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 026 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 026 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 026 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 026 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 026 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 026 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 026 |
| pH | quarterly minimum | ≥ 6 SU | all year | 027 |
| pH | minimum | ≥ 6.5 SU | all year | 027 |
| pH | quarterly minimum | ≥ 6 SU | all year | 027 |
| pH | minimum | ≥ 6.5 SU | all year | 027 |
| pH | quarterly maximum | ≤ 9 SU | all year | 027 |
| pH | maximum | ≤ 9 SU | all year | 027 |
| pH | quarterly maximum | ≤ 9 SU | all year | 027 |
| pH | maximum | ≤ 9 SU | all year | 027 |
| Solids, settleable | quarterly maximum | ≤ .5 mL/L | all year | 027 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 027 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 027 |
| Hardness, total [as CaCO3] | quarterly maximum | report only (mg/L) | all year | 027 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 027 |
| Hardness, total [as CaCO3] | quarterly maximum | report only (mg/L) | all year | 027 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 027 |
| Chloride [as Cl] | quarterly maximum | ≤ 500 mg/L | all year | 027 |
| Chloride [as Cl] | daily maximum | ≤ 500 mg/L | all year | 027 |
| Chloride [as Cl] | quarterly maximum | ≤ 500 mg/L | all year | 027 |
| Chloride [as Cl] | daily maximum | ≤ 500 mg/L | all year | 027 |
| Sulfate, total [as SO4] | quarterly maximum | ≤ 1622 mg/L | all year | 027 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1622 mg/L | all year | 027 |
| Sulfate, total [as SO4] | quarterly maximum | ≤ 1622 mg/L | all year | 027 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1622 mg/L | all year | 027 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 027 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 027 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 027 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 027 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 027 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 027 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 027 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 027 |
| pH | minimum | ≥ 6.5 SU | all year | 028 |
| pH | quarterly minimum | ≥ 6 SU | all year | 028 |
| pH | quarterly minimum | ≥ 6 SU | all year | 028 |
| pH | minimum | ≥ 6.5 SU | all year | 028 |
| pH | maximum | ≤ 9 SU | all year | 028 |
| pH | quarterly maximum | ≤ 9 SU | all year | 028 |
| pH | quarterly maximum | ≤ 9 SU | all year | 028 |
| pH | maximum | ≤ 9 SU | all year | 028 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 028 |
| Solids, settleable | quarterly maximum | ≤ .5 mL/L | all year | 028 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 028 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 028 |
| Hardness, total [as CaCO3] | quarterly maximum | report only (mg/L) | all year | 028 |
| Hardness, total [as CaCO3] | quarterly maximum | report only (mg/L) | all year | 028 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 028 |
| Chloride [as Cl] | daily maximum | ≤ 500 mg/L | all year | 028 |
| Chloride [as Cl] | quarterly maximum | ≤ 500 mg/L | all year | 028 |
| Chloride [as Cl] | quarterly maximum | ≤ 500 mg/L | all year | 028 |
| Chloride [as Cl] | daily maximum | ≤ 500 mg/L | all year | 028 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1832 mg/L | all year | 028 |
| Sulfate, total [as SO4] | quarterly maximum | ≤ 1832 mg/L | all year | 028 |
| Sulfate, total [as SO4] | quarterly maximum | ≤ 1832 mg/L | all year | 028 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1832 mg/L | all year | 028 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 028 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 028 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 028 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 028 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 028 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 028 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 028 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 028 |
| pH | quarterly minimum | ≥ 6 SU | all year | 029 |
| pH | minimum | ≥ 6.5 SU | all year | 029 |
| pH | minimum | ≥ 6.5 SU | all year | 029 |
| pH | quarterly minimum | ≥ 6 SU | all year | 029 |
| pH | quarterly maximum | ≤ 9 SU | all year | 029 |
| pH | maximum | ≤ 9 SU | all year | 029 |
| pH | maximum | ≤ 9 SU | all year | 029 |
| pH | quarterly maximum | ≤ 9 SU | all year | 029 |
| Solids, settleable | quarterly maximum | ≤ .5 mL/L | all year | 029 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 029 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 029 |
| Hardness, total [as CaCO3] | quarterly maximum | report only (mg/L) | all year | 029 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 029 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 029 |
| Hardness, total [as CaCO3] | quarterly maximum | report only (mg/L) | all year | 029 |
| Chloride [as Cl] | quarterly maximum | ≤ 500 mg/L | all year | 029 |
| Chloride [as Cl] | daily maximum | ≤ 500 mg/L | all year | 029 |
| Chloride [as Cl] | daily maximum | ≤ 500 mg/L | all year | 029 |
| Chloride [as Cl] | quarterly maximum | ≤ 500 mg/L | all year | 029 |
| Sulfate, total [as SO4] | quarterly maximum | ≤ 1458 mg/L | all year | 029 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1458 mg/L | all year | 029 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1458 mg/L | all year | 029 |
| Sulfate, total [as SO4] | quarterly maximum | ≤ 1458 mg/L | all year | 029 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 029 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 029 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 029 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 029 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 029 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 029 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 029 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 029 |
Cited limits by parameter: Illinois's rules and the federal ones.
Same industry: the 56 Coal Mining permits in Illinois.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/IL0077381 · MCP: https://passage-data.com/mcp