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Allied Tube and Conduit Corp - SMPF

Steel Pipe And Tubes, Harvey, Illinois. NPDES permit IL0078930 expired Aug 31, 2026; its limits still apply. Last 12 months: no values over a limit, 4 required values missing, 2 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 25 days after each period: form 0 monthly (7 values)
Last report on file: August 2026
Oct 2024 – Sep 2025: 1 value over a limit, 8 required values missing, 7 of 12 reports late

Limits in force (7)

Parameter	Statistic	Limit	Months
pH	monthly minimum	report only (SU)	all year
pH	monthly maximum	report only (SU)	all year
Oil & Grease	daily maximum	report only (mg/L)	all year
Iron, total [as Fe]	daily maximum	report only (mg/L)	all year
Zinc, total [as Zn]	daily maximum	≤ 1.43 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?

Zinc, total [as Zn], daily maximum 1.43 mg/L — stricter than 24% of 33 other minor industrial and other permits in Illinois

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

Same industry: the 22 Primary Metal Industries 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/IL0078930 · MCP: https://passage-data.com/mcp