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Louis Dreyfus Company, LLC

Industrial Organic Chemicals, Grand Junction, Iowa. NPDES permit IA0082066, in force until Aug 31, 2029. Last 12 months: over a limit once (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (10 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 1 of 12 reports late

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

Period endingParameterReportedLimitOver by
August 2026Nitrogen, ammonia total [as N], 30-day average1.535≤ 1 mg/L54%

Limits in force (54)

ParameterStatisticLimitMonths
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 9 SUall year
Nitrogen, ammonia total [as N]30-day average≤ 3.4 mg/LJan
Nitrogen, ammonia total [as N]30-day average≤ 1.3 mg/LJun
Nitrogen, ammonia total [as N]30-day average≤ 2.5 mg/LDec
Nitrogen, ammonia total [as N]30-day average≤ 1.7 mg/LMay
Nitrogen, ammonia total [as N]30-day average≤ 2.3 mg/LNov
Nitrogen, ammonia total [as N]30-day average≤ 4 mg/LFeb
Nitrogen, ammonia total [as N]30-day average≤ 3.4 mg/LMar
Nitrogen, ammonia total [as N]30-day average≤ 1.1 mg/LSep
Nitrogen, ammonia total [as N]30-day average≤ 1 mg/LJul
Nitrogen, ammonia total [as N]30-day average≤ 1.6 mg/LOct
Nitrogen, ammonia total [as N]30-day average≤ 1.5 mg/LApr
Nitrogen, ammonia total [as N]30-day average≤ 1 mg/LAug
Nitrogen, ammonia total [as N]daily maximum≤ 10.1 mg/LJan
Nitrogen, ammonia total [as N]daily maximum≤ 5.7 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 6.9 mg/LDec
Nitrogen, ammonia total [as N]daily maximum≤ 4.7 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 5.7 mg/LNov
Nitrogen, ammonia total [as N]daily maximum≤ 6.9 mg/LFeb
Nitrogen, ammonia total [as N]daily maximum≤ 8.4 mg/LMar
Nitrogen, ammonia total [as N]daily maximum≤ 4.7 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 5.7 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 5.7 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 5.7 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 5.7 mg/LAug
Nitrogen, ammonia total [as N]30-day average≤ 60.3 lb/dJan
Nitrogen, ammonia total [as N]30-day average≤ 23.2 lb/dJun
Nitrogen, ammonia total [as N]30-day average≤ 43.8 lb/dDec
Nitrogen, ammonia total [as N]30-day average≤ 30.8 lb/dMay
Nitrogen, ammonia total [as N]30-day average≤ 41.1 lb/dNov
Nitrogen, ammonia total [as N]30-day average≤ 70 lb/dFeb
Nitrogen, ammonia total [as N]30-day average≤ 60.3 lb/dMar
Nitrogen, ammonia total [as N]30-day average≤ 18.7 lb/dSep
Nitrogen, ammonia total [as N]30-day average≤ 17.8 lb/dJul
Nitrogen, ammonia total [as N]30-day average≤ 27.6 lb/dOct
Nitrogen, ammonia total [as N]30-day average≤ 27 lb/dApr
Nitrogen, ammonia total [as N]30-day average≤ 16.9 lb/dAug
Nitrogen, ammonia total [as N]daily maximum≤ 179.5 lb/dJan
Nitrogen, ammonia total [as N]daily maximum≤ 101.4 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ 123.1 lb/dDec
Nitrogen, ammonia total [as N]daily maximum≤ 83.5 lb/dMay
Nitrogen, ammonia total [as N]daily maximum≤ 101.4 lb/dNov
Nitrogen, ammonia total [as N]daily maximum≤ 123.1 lb/dFeb
Nitrogen, ammonia total [as N]daily maximum≤ 148.9 lb/dMar
Nitrogen, ammonia total [as N]daily maximum≤ 83.5 lb/dSep
Nitrogen, ammonia total [as N]daily maximum≤ 101.4 lb/dJul
Nitrogen, ammonia total [as N]daily maximum≤ 101.4 lb/dOct
Nitrogen, ammonia total [as N]daily maximum≤ 101.4 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 101.4 lb/dAug
Chlorine, total residual30-day average≤ .011 mg/Lall year
Chlorine, total residualdaily maximum≤ .019 mg/Lall year
Chlorine, total residual30-day average≤ .049 lb/dall year
Chlorine, total residualdaily maximum≤ .085 lb/dall year

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/IA0082066 · MCP: https://passage-data.com/mcp