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Covia Specialty Materials Inc

Industrial Sand, Elco, Illinois. NPDES permit IL0064548, in force until May 31, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 25 days after each period: form 0 monthly (10 values)
Last report on file: September 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (10)

Parameter	Statistic	Limit	Months
Sulfate [as S]	daily maximum	≤ 500 mg/L	all year
pH	monthly minimum	≥ 6.5 SU	all year
pH	monthly maximum	≤ 9 SU	all year
Solids, total suspended	30-day average	≤ 25 mg/L	all year
Solids, total suspended	daily maximum	≤ 45 mg/L	all year
Chloride [as Cl]	daily maximum	≤ 500 mg/L	all year
Iron, total [as Fe]	30-day average	≤ 3.5 mg/L	all year
Iron, total [as Fe]	daily maximum	≤ 7 mg/L	all year
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year
Offensive Conditions	value	report only (N=0;Y=1)	all year

How strict are these limits?

pH, monthly minimum at least 6.5 SU — stricter than 38% of 286 other minor industrial and other permits in Illinois; 61% have the same limit
Solids, total suspended, 30-day average 25 mg/L — stricter than 30% of 259 other minor industrial and other permits in Illinois; 6% have the same limit
Solids, total suspended, daily maximum 45 mg/L — stricter than 18% of 508 other minor industrial and other permits in Illinois; 2% have the same limit

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

Same industry: the 24 Mining and Quarrying of Nonmetallic Minerals 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/IL0064548 · MCP: https://passage-data.com/mcp