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Big River Resources, LLC

Industrial Organic Chemicals, West Burlington, Iowa. NPDES permit IA0078123, in force until Jul 31, 2030. Last 12 months: over a limit once (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (22 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
2 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
June 2026Chloride [as Cl], 30-day average390≤ 389 mg/L0%

Limits in force (66)

ParameterStatisticLimitMonths
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≤ 47 lb/dall year
Solids, total suspendeddaily maximum≤ 100 lb/dall year
Nitrogen, ammonia total [as N]30-day average≤ 1.7 mg/LMay
Nitrogen, ammonia total [as N]30-day average≤ 1.1 mg/LSep
Nitrogen, ammonia total [as N]30-day average≤ 1.3 mg/LJun
Nitrogen, ammonia total [as N]30-day average≤ 1 mg/LJul
Nitrogen, ammonia total [as N]30-day average≤ 3.4 mg/LJan
Nitrogen, ammonia total [as N]30-day average≤ 1.5 mg/LApr
Nitrogen, ammonia total [as N]30-day average≤ 1.6 mg/LOct
Nitrogen, ammonia total [as N]30-day average≤ 1 mg/LAug
Nitrogen, ammonia total [as N]30-day average≤ 4 mg/LFeb
Nitrogen, ammonia total [as N]30-day average≤ 2.5 mg/LDec
Nitrogen, ammonia total [as N]30-day average≤ 3.4 mg/LMar
Nitrogen, ammonia total [as N]30-day average≤ 2.3 mg/LNov
Nitrogen, ammonia total [as N]daily maximum≤ 4.7 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 4.7 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 5.7 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 5.7 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 10.1 mg/LJan
Nitrogen, ammonia total [as N]daily maximum≤ 5.7 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 5.7 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 5.7 mg/LAug
Nitrogen, ammonia total [as N]daily maximum≤ 6.9 mg/LFeb
Nitrogen, ammonia total [as N]daily maximum≤ 6.9 mg/LDec
Nitrogen, ammonia total [as N]daily maximum≤ 8.4 mg/LMar
Nitrogen, ammonia total [as N]daily maximum≤ 5.7 mg/LNov
Nitrogen, ammonia total [as N]30-day average≤ 6 lb/dMay
Nitrogen, ammonia total [as N]30-day average≤ 3.6 lb/dSep
Nitrogen, ammonia total [as N]30-day average≤ 4.5 lb/dJun
Nitrogen, ammonia total [as N]30-day average≤ 3.5 lb/dJul
Nitrogen, ammonia total [as N]30-day average≤ 11.8 lb/dJan
Nitrogen, ammonia total [as N]30-day average≤ 5.3 lb/dApr
Nitrogen, ammonia total [as N]30-day average≤ 5.4 lb/dOct
Nitrogen, ammonia total [as N]30-day average≤ 3.3 lb/dAug
Nitrogen, ammonia total [as N]30-day average≤ 13.6 lb/dFeb
Nitrogen, ammonia total [as N]30-day average≤ 8.5 lb/dDec
Nitrogen, ammonia total [as N]30-day average≤ 11.8 lb/dMar
Nitrogen, ammonia total [as N]30-day average≤ 8 lb/dNov
Nitrogen, ammonia total [as N]daily maximum≤ 16.3 lb/dMay
Nitrogen, ammonia total [as N]daily maximum≤ 16.3 lb/dSep
Nitrogen, ammonia total [as N]daily maximum≤ 19.8 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ 19.8 lb/dJul
Nitrogen, ammonia total [as N]daily maximum≤ 35 lb/dJan
Nitrogen, ammonia total [as N]daily maximum≤ 19.8 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 19.8 lb/dOct
Nitrogen, ammonia total [as N]daily maximum≤ 19.8 lb/dAug
Nitrogen, ammonia total [as N]daily maximum≤ 24 lb/dFeb
Nitrogen, ammonia total [as N]daily maximum≤ 24 lb/dDec
Nitrogen, ammonia total [as N]daily maximum≤ 29 lb/dMar
Nitrogen, ammonia total [as N]daily maximum≤ 19.8 lb/dNov
Chloride [as Cl]30-day average≤ 389 mg/Lall year
Chloride [as Cl]daily maximum≤ 675 mg/Lall year
Chloride [as Cl]30-day average≤ 1264 lb/dall year
Chloride [as Cl]daily maximum≤ 2195 lb/dall year
Sulfate, total [as SO4]30-day average≤ 1514 mg/Lall year
Sulfate, total [as SO4]daily maximum≤ 2000 mg/Lall year
Sulfate, total [as SO4]30-day average≤ 4923 lb/dall year
Sulfate, total [as SO4]daily maximum≤ 6505 lb/dall year
Chlorine, total residual30-day average≤ .011 mg/Lall year
Chlorine, total residualdaily maximum≤ .019 mg/Lall year
Chlorine, total residual30-day average≤ .038 lb/dall year
Chlorine, total residualdaily maximum≤ .066 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/IA0078123 · MCP: https://passage-data.com/mcp