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City of Barnum

Sewage treatment plant, Barnum, Iowa. NPDES permit IA0041246, in force until Nov 30, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

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

Limits in force (59)

ParameterStatisticLimitMonths
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspended30-day average≤ 80 mg/Lall year
Solids, total suspended7-day average≤ 120 mg/Lall year
Nitrogen, ammonia total [as N]30-day average≤ 3.7 mg/LMay
Nitrogen, ammonia total [as N]30-day average≤ 1.4 mg/LSep
Nitrogen, ammonia total [as N]30-day average≤ 4.9 mg/LApr
Nitrogen, ammonia total [as N]30-day average≤ 5.3 mg/LFeb
Nitrogen, ammonia total [as N]30-day average≤ 3.5 mg/LDec
Nitrogen, ammonia total [as N]30-day average≤ 3.9 mg/LMar
Nitrogen, ammonia total [as N]30-day average≤ 4.6 mg/LJan
Nitrogen, ammonia total [as N]30-day average≤ 2.7 mg/LNov
Nitrogen, ammonia total [as N]30-day average≤ 1.3 mg/LJul
Nitrogen, ammonia total [as N]30-day average≤ 3.7 mg/LJun
Nitrogen, ammonia total [as N]30-day average≤ 1.3 mg/LAug
Nitrogen, ammonia total [as N]30-day average≤ 2.2 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 3.7 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 5.1 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 8.5 mg/LFeb
Nitrogen, ammonia total [as N]daily maximum≤ 3.9 mg/LDec
Nitrogen, ammonia total [as N]daily maximum≤ 3.9 mg/LMar
Nitrogen, ammonia total [as N]daily maximum≤ 20 mg/LJan
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LNov
Nitrogen, ammonia total [as N]daily maximum≤ 3.3 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 3.7 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LAug
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LOct
Nitrogen, ammonia total [as N]30-day average≤ 11.7 lb/dMay
Nitrogen, ammonia total [as N]30-day average≤ 4.5 lb/dSep
Nitrogen, ammonia total [as N]30-day average≤ 15.5 lb/dApr
Nitrogen, ammonia total [as N]30-day average≤ 16.7 lb/dFeb
Nitrogen, ammonia total [as N]30-day average≤ 11 lb/dDec
Nitrogen, ammonia total [as N]30-day average≤ 12.5 lb/dMar
Nitrogen, ammonia total [as N]30-day average≤ 14.4 lb/dJan
Nitrogen, ammonia total [as N]30-day average≤ 8.5 lb/dNov
Nitrogen, ammonia total [as N]30-day average≤ 4.2 lb/dJul
Nitrogen, ammonia total [as N]30-day average≤ 11.7 lb/dJun
Nitrogen, ammonia total [as N]30-day average≤ 4 lb/dAug
Nitrogen, ammonia total [as N]30-day average≤ 6.9 lb/dOct
Nitrogen, ammonia total [as N]daily maximum≤ 11.7 lb/dMay
Nitrogen, ammonia total [as N]daily maximum≤ 8.5 lb/dSep
Nitrogen, ammonia total [as N]daily maximum≤ 16.2 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 26.9 lb/dFeb
Nitrogen, ammonia total [as N]daily maximum≤ 12.4 lb/dDec
Nitrogen, ammonia total [as N]daily maximum≤ 12.5 lb/dMar
Nitrogen, ammonia total [as N]daily maximum≤ 63.3 lb/dJan
Nitrogen, ammonia total [as N]daily maximum≤ 8.5 lb/dNov
Nitrogen, ammonia total [as N]daily maximum≤ 10.3 lb/dJul
Nitrogen, ammonia total [as N]daily maximum≤ 11.7 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ 8.6 lb/dAug
Nitrogen, ammonia total [as N]daily maximum≤ 8.5 lb/dOct
Chloride [as Cl]30-day average≤ 404 mg/Lall year
Chloride [as Cl]daily maximum≤ 631 mg/Lall year
Chloride [as Cl]30-day average≤ 1280 lb/dall year
Chloride [as Cl]daily maximum≤ 2001 lb/dall year
Annual Nitrate Nitrogen Dischargeddaily maximum≤ 1924 lb/yrall year
BOD, carbonaceous [5 day, 20 C]30-day average≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 40 mg/Lall year

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IA0041246 · MCP: https://passage-data.com/mcp