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White Rock Quarry Lp

Crushed And Broken Limestone, Clay Center, Ohio. NPDES permit OH0002861, in force until Apr 30, 2027. Last 12 months: no values over a limit, 1 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 20 days after each period: form A monthly (8 values)
Renewal application due: Nov 1, 2026 · 180 days before expiry; your permit may set another date
Last report on file: August 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (8)

Parameter	Statistic	Limit	Months
pH	daily minimum	≥ 6.5 SU	all year
pH	daily maximum	≤ 9 SU	all year
Solids, total suspended	monthly average	≤ 20 mg/L	all year
Solids, total suspended	daily maximum	≤ 30 mg/L	all year
Solids, total suspended	monthly average	≤ 523 kg/d	all year
Solids, total suspended	daily maximum	≤ 784 kg/d	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

How strict are these limits?

Solids, total suspended, daily maximum 30 mg/L — stricter than 83% of 559 other minor industrial and other permits in Ohio; 2% have the same limit
Solids, total suspended, monthly average 20 mg/L — stricter than 26% of 1,799 other minor industrial and other permits in Ohio

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/OH0002861 · MCP: https://passage-data.com/mcp