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Meridian Aggregates Co, Inc.-Snyder Quarry

Crushed And Broken Granite, Snyder, Oklahoma. NPDES permit OK0100471, in force until Apr 30, 2029. Last 12 months: over a limit once (last June 2026), 1 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 15 days after each period: form A monthly (6 values)
Last report on file: September 2026
Oct 2024 – Sep 2025: 1 value over a limit, 0 required values missing, 0 of 12 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period ending	Parameter	Reported	Limit	Over by
June 2026	Solids, total suspended, daily maximum	97 mg/L	≤ 41 mg/L	137%

Limits in force (6)

Parameter	Statistic	Limit	Months
pH	minimum	≥ 6.5 SU	all year
pH	maximum	≤ 9 SU	all year
Solids, total suspended	monthly average	report only (mg/L)	all year
Solids, total suspended	daily maximum	≤ 41 mg/L	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 41 mg/L — stricter than 50% of 104 other minor industrial and other permits in Oklahoma

Cited limits by parameter: Oklahoma's rules and the federal ones.

Same industry: the 14 Mining and Quarrying of Nonmetallic Minerals permits in Oklahoma.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OK0100471 · MCP: https://passage-data.com/mcp