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Green Plains Madison, LLC

Industrial Organic Chemicals, Madison, Illinois. NPDES permit IL0078867 expired Jul 31, 2026; its limits still apply. 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 (16 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 2 of 12 reports late

Limits in force (16)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitmonthly maximumreport only (deg F)all year
pHmonthly minimum≥ 6 SUall year
pHmonthly maximum≤ 9 SUall year
Solids, total suspended30-day average≤ 15 mg/Lall year
Solids, total suspendeddaily maximum≤ 30 mg/Lall year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Cyanide, total [as CN]30-day average≤ .0052 mg/Lall year
Cyanide, total [as CN]daily maximum≤ .022 mg/Lall year
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year
Copper, total [as Cu]30-day average≤ .074 mg/Lall year
Copper, total [as Cu]daily maximum≤ .134 mg/Lall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualdaily maximum≤ .05 mg/Lall year
Mercury, total [as Hg]monthly averagereport only (ng/L)all year
Mercury, total [as Hg]annual average≤ 12 ng/Lall year

How strict are these limits?

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/IL0078867 · MCP: https://passage-data.com/mcp