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Crushed And Broken Limestone, Washington Courthouse, Ohio. NPDES permit OH0120774, in force until Feb 28, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| pH | daily minimum | ≥ 6.5 SU | Mar, Jun, Aug, Dec |
| pH | daily maximum | ≤ 9 SU | Mar, Jun, Aug, Dec |
| Solids, total suspended | monthly average | ≤ 30 mg/L | Mar, Jun, Aug, Dec |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | Mar, Jun, Aug, Dec |
| Turbidity [severity] | monthly average | report only (severity) | all year |
| Turbidity [severity] | daily maximum | report only (severity) | 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 |
Cited limits by parameter: Ohio's rules and the federal ones.
Same industry: the 131 Mining and Quarrying of Nonmetallic Minerals permits in Ohio.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/OH0120774 · MCP: https://passage-data.com/mcp