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Marquis XT LLC

Polishes And Sanitation Goods, Hennepin, Illinois. NPDES permit IL0080254, in force until Jul 31, 2028. 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 (8 values)
Renewal application due: Feb 2, 2028 · 180 days before expiry; your permit may set another date
Last report on file: September 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 1 of 12 reports late

Limits in force (10)

Parameter	Statistic	Limit	Months
pH	monthly minimum	≥ 6 SU	all year
pH	monthly maximum	≤ 9 SU	all year
Solids, total suspended	30-day average	≤ 15 mg/L	all year
Solids, total suspended	daily maximum	≤ 30 mg/L	all year
Oil & Grease	30-day average	≤ 15 mg/L	all year
Oil & Grease	daily maximum	≤ 30 mg/L	all year
Nitrogen, ammonia total [as N]	30-day average	report only (mg/L)	Jan, Apr, Jul, Oct
Nitrogen, ammonia total [as N]	daily maximum	report only (mg/L)	Jan, Apr, Jul, Oct
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, 30-day average 15 mg/L — stricter than 37% of 259 other minor industrial and other permits in Illinois; 48% have the same limit
Solids, total suspended, daily maximum 30 mg/L — stricter than 20% of 508 other minor industrial and other permits in Illinois; 24% have the same limit

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

Same industry: the 58 Chemicals and Allied Products 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/IL0080254 · MCP: https://passage-data.com/mcp