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Bituminous Coal And Lignite - Surface, Conesville, Ohio. NPDES permit OH0076368 expired Apr 30, 2026; its limits still apply. Last 12 months: over a limit 11 times (last March 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Manganese, total [as Mn], daily maximum | 7590 | ≤ 4000 ug/L | 90% |
| October 2025 | Manganese, total [as Mn], monthly average | 4150 | ≤ 2000 ug/L | 108% |
| November 2025 | Manganese, total [as Mn], daily maximum | 6030 | ≤ 4000 ug/L | 51% |
| November 2025 | Manganese, total [as Mn], monthly average | 4300 | ≤ 2000 ug/L | 115% |
| December 2025 | Manganese, total [as Mn], daily maximum | 11057 | ≤ 4000 ug/L | 176% |
| December 2025 | Manganese, total [as Mn], monthly average | 5172.3 | ≤ 2000 ug/L | 159% |
| January 2026 | Manganese, total [as Mn], daily maximum | 5950 | ≤ 4000 ug/L | 49% |
| January 2026 | Manganese, total [as Mn], monthly average | 4350 | ≤ 2000 ug/L | 118% |
| February 2026 | Manganese, total [as Mn], daily maximum | 4220 | ≤ 4000 ug/L | 6% |
| February 2026 | Manganese, total [as Mn], monthly average | 2120 | ≤ 2000 ug/L | 6% |
| March 2026 | Manganese, total [as Mn], monthly average | 2870 | ≤ 2000 ug/L | 44% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| pH | daily minimum | ≥ 6.5 SU | all year |
| pH | daily maximum | ≤ 9.5 SU | all year |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Chloride [as Cl] | monthly average | report only (mg/L) | all year |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year |
| Selenium, total recoverable | monthly average | report only (ug/L) | Feb, May, Aug, Nov |
| Selenium, total recoverable | daily maximum | report only (ug/L) | Feb, May, Aug, Nov |
| Iron, total [as Fe] | monthly average | ≤ 3000 ug/L | all year |
| Iron, total [as Fe] | daily maximum | ≤ 6000 ug/L | all year |
| Manganese, total [as Mn] | monthly average | ≤ 2000 ug/L | all year |
| Manganese, total [as Mn] | daily maximum | ≤ 4000 ug/L | all year |
| Silver total recoverable | monthly average | report only (ug/L) | Feb, May, Aug, Nov |
| Silver total recoverable | daily maximum | report only (ug/L) | Feb, May, Aug, Nov |
| Rainfall | monthly average | report only (in) | all year |
| Rainfall | daily maximum | report only (in) | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Mercury, total low level | monthly average | report only (ng/L) | Aug |
| Mercury, total low level | daily maximum | report only (ng/L) | Aug |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | Feb, May, Aug, Nov |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | Feb, May, Aug, Nov |
Cited limits by parameter: Ohio's rules and the federal ones.
Same industry: the 38 Coal Mining permits in Ohio.
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Your permit document is the final word. As JSON: /api/v1/permits/OH0076368 · MCP: https://passage-data.com/mcp