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Poet Biorefining - Coon Rapids, LLC

Industrial Organic Chemicals, Coon Rapids, Iowa. NPDES permit IA0077003, in force until Dec 31, 2030. Last 12 months: over a limit once (last February 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (18 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

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

Period endingParameterReportedLimitOver by
February 2026Chlorine, total residual, daily maximum.08≤ .039 mg/L105%

Limits in force (40)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheit30-day average≤ 76.1 deg FMar
Temperature, water deg. fahrenheit30-day average≤ 84.9 deg FApr
Temperature, water deg. fahrenheit30-day average≤ 60.3 deg FFeb
Temperature, water deg. fahrenheit30-day average≤ 70.4 deg FDec
Temperature, water deg. fahrenheit30-day average≤ 87.6 deg FMay
Temperature, water deg. fahrenheit30-day average≤ 92.8 deg FJul
Temperature, water deg. fahrenheit30-day average≤ 60.3 deg FJan
Temperature, water deg. fahrenheit30-day average≤ 93.2 deg FSep
Temperature, water deg. fahrenheit30-day average≤ 93.8 deg FOct
Temperature, water deg. fahrenheit30-day average≤ 92.7 deg FAug
Temperature, water deg. fahrenheit30-day average≤ 82.4 deg FNov
Temperature, water deg. fahrenheit30-day average≤ 93.3 deg FJun
Temperature, water deg. fahrenheitdaily maximum≤ 95.6 deg FMar
Temperature, water deg. fahrenheitdaily maximum≤ 94.5 deg FApr
Temperature, water deg. fahrenheitdaily maximum≤ 96.2 deg FFeb
Temperature, water deg. fahrenheitdaily maximum≤ 95.7 deg FDec
Temperature, water deg. fahrenheitdaily maximum≤ 93.9 deg FMay
Temperature, water deg. fahrenheitdaily maximum≤ 92.8 deg FJul
Temperature, water deg. fahrenheitdaily maximum≤ 96.1 deg FJan
Temperature, water deg. fahrenheitdaily maximum≤ 93.2 deg FSep
Temperature, water deg. fahrenheitdaily maximum≤ 93.8 deg FOct
Temperature, water deg. fahrenheitdaily maximum≤ 92.7 deg FAug
Temperature, water deg. fahrenheitdaily maximum≤ 94.8 deg FNov
Temperature, water deg. fahrenheitdaily maximum≤ 93.3 deg FJun
Oxygen demand, chem. [high level] [COD]daily maximum≤ 77.5 mg/Lall year
Oxygen demand, chem. [high level] [COD]daily maximum≤ 163.1 lb/dall year
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspended30-day average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 45 mg/Lall year
Solids, total suspended30-day average≤ 48 lb/dall year
Solids, total suspendeddaily maximum≤ 72 lb/dall year
Iron, total [as Fe]30-day average≤ 1.01 mg/Lall year
Iron, total [as Fe]daily maximum≤ 1.01 mg/Lall year
Iron, total [as Fe]30-day average≤ 1.61 lb/dall year
Iron, total [as Fe]daily maximum≤ 1.61 lb/dall year
Chlorine, total residual30-day average≤ .025 mg/Lall year
Chlorine, total residualdaily maximum≤ .039 mg/Lall year
Chlorine, total residual30-day average≤ .04 lb/dall year
Chlorine, total residualdaily maximum≤ .063 lb/dall year

New limits from Jan 1, 2030

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Chlorine, total residual, 30-day average0.018 mg/Ltighter0.001909 mg/L (4 values)0.106×
Chlorine, total residual, daily maximum0.03 mg/Ltighter0.025 mg/L (4 values)0.833×

How strict are these limits?

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

Same industry: the 57 Chemicals and Allied Products permits in Iowa.

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Your permit document is the final word. As JSON: /api/v1/permits/IA0077003 · MCP: https://passage-data.com/mcp