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City of Greeley

Sewage treatment plant, Greeley, Iowa. NPDES permit IA0040291, in force until Aug 31, 2029. Last 12 months: over a limit 2 times (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
August 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
May 2026BOD, carbonaceous [5 day, 20 C], 30-day average28≤ 25 mg/L12%
August 2026pH, daily maximum9.2≤ 9 SU—

Limits in force (54)

ParameterStatisticLimitMonths
pHdaily minimum≥ 6 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≤ 3.9 mg/LMar
Nitrogen, ammonia total [as N]30-day average≤ 1.2 mg/LJul
Nitrogen, ammonia total [as N]30-day average≤ 3.9 mg/LJan
Nitrogen, ammonia total [as N]30-day average≤ 1.8 mg/LOct
Nitrogen, ammonia total [as N]30-day average≤ 2.1 mg/LMay
Nitrogen, ammonia total [as N]30-day average≤ 1.1 mg/LAug
Nitrogen, ammonia total [as N]30-day average≤ 1.2 mg/LSep
Nitrogen, ammonia total [as N]30-day average≤ 1.6 mg/LJun
Nitrogen, ammonia total [as N]30-day average≤ 2.7 mg/LNov
Nitrogen, ammonia total [as N]30-day average≤ 4.5 mg/LFeb
Nitrogen, ammonia total [as N]30-day average≤ 1.8 mg/LApr
Nitrogen, ammonia total [as N]30-day average≤ 2.8 mg/LDec
Nitrogen, ammonia total [as N]daily maximum≤ 4.9 mg/LMar
Nitrogen, ammonia total [as N]daily maximum≤ 4.1 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 21.3 mg/LJan
Nitrogen, ammonia total [as N]daily maximum≤ 3.3 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 4 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 3.5 mg/LAug
Nitrogen, ammonia total [as N]daily maximum≤ 3.3 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 4.1 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 3.3 mg/LNov
Nitrogen, ammonia total [as N]daily maximum≤ 9.6 mg/LFeb
Nitrogen, ammonia total [as N]daily maximum≤ 5.4 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 4.5 mg/LDec
Nitrogen, ammonia total [as N]30-day average≤ 15.5 lb/dMar
Nitrogen, ammonia total [as N]30-day average≤ 4.6 lb/dJul
Nitrogen, ammonia total [as N]30-day average≤ 15.5 lb/dJan
Nitrogen, ammonia total [as N]30-day average≤ 7.1 lb/dOct
Nitrogen, ammonia total [as N]30-day average≤ 8.3 lb/dMay
Nitrogen, ammonia total [as N]30-day average≤ 4.4 lb/dAug
Nitrogen, ammonia total [as N]30-day average≤ 4.9 lb/dSep
Nitrogen, ammonia total [as N]30-day average≤ 6.3 lb/dJun
Nitrogen, ammonia total [as N]30-day average≤ 10.6 lb/dNov
Nitrogen, ammonia total [as N]30-day average≤ 18 lb/dFeb
Nitrogen, ammonia total [as N]30-day average≤ 7.2 lb/dApr
Nitrogen, ammonia total [as N]30-day average≤ 11.3 lb/dDec
Nitrogen, ammonia total [as N]daily maximum≤ 19.4 lb/dMar
Nitrogen, ammonia total [as N]daily maximum≤ 16.3 lb/dJul
Nitrogen, ammonia total [as N]daily maximum≤ 85.2 lb/dJan
Nitrogen, ammonia total [as N]daily maximum≤ 13.3 lb/dOct
Nitrogen, ammonia total [as N]daily maximum≤ 16.1 lb/dMay
Nitrogen, ammonia total [as N]daily maximum≤ 14.1 lb/dAug
Nitrogen, ammonia total [as N]daily maximum≤ 13.4 lb/dSep
Nitrogen, ammonia total [as N]daily maximum≤ 16.2 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ 13.3 lb/dNov
Nitrogen, ammonia total [as N]daily maximum≤ 38.3 lb/dFeb
Nitrogen, ammonia total [as N]daily maximum≤ 21.6 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 18.2 lb/dDec
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.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IA0040291 · MCP: https://passage-data.com/mcp