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City of Postville

Meat Packing Plants, Postville, Iowa. NPDES permit IA0077135, in force until Jul 31, 2027. Last 12 months: over a limit 13 times (last August 2026), 3 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (43 values)
Renewal application due
Feb 1, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
31 values over a limit, 5 required values missing, 0 of 12 reports late

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

All 13 values over a limit
Period endingParameterReportedLimitOver by
October 2025Chloride [as Cl], 30-day average523.625≤ 471 mg/L11%
November 2025Chloride [as Cl], 30-day average508.3333≤ 471 mg/L8%
February 2026Chloride [as Cl], 30-day average553.25≤ 471 mg/L17%
February 2026Chloride [as Cl], daily maximum845≤ 762 mg/L11%
February 2026Solids, total suspended, daily maximum386.4088≤ 293 lb/d32%
March 2026Chloride [as Cl], 30-day average497.5≤ 471 mg/L6%
April 2026Solids, total suspended, daily maximum378.5526≤ 293 lb/d29%
May 2026Chloride [as Cl], 30-day average479.8888≤ 471 mg/L2%
May 2026Chloride [as Cl], daily maximum791≤ 762 mg/L4%
June 2026Chloride [as Cl], 30-day average640.8888≤ 471 mg/L36%
July 2026Chloride [as Cl], 30-day average588.875≤ 471 mg/L25%
July 2026Chloride [as Cl], daily maximum847≤ 762 mg/L11%
August 2026Chloride [as Cl], 30-day average606.6666≤ 471 mg/L29%

Limits in force (88)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 5 mg/Lall year
BOD, 5-day, 20 deg. C30-day average≤ 119 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 238 lb/dall year
BOD, 5-day, 20 deg. C30-day averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year
BOD, 5-day, 20 deg. C30-day averagereport only (lb/d)all year
BOD, 5-day, 20 deg. Cdaily maximumreport only (lb/d)all year
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 9 SUall year
pH30-day averagereport only (SU)all year
pHdaily maximumreport only (SU)all year
Solids, total suspended30-day average≤ 146 lb/dall year
Solids, total suspendeddaily maximum≤ 293 lb/dall year
Solids, total suspended30-day averagereport only (mg/L)all year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Solids, total suspended30-day averagereport only (lb/d)all year
Solids, total suspendeddaily maximumreport only (lb/d)all year
Oil & Grease30-day average≤ 70 lb/dall year
Oil & Greasedaily maximum≤ 139 lb/dall year
Nitrogen, total [as N]30-day average≤ 134 mg/Lall year
Nitrogen, total [as N]daily maximum≤ 194 mg/Lall year
Nitrogen, total [as N]30-day average≤ 1620 lb/dall year
Nitrogen, total [as N]daily maximum≤ 2346 lb/dall year
Nitrogen, ammonia total [as N]30-day average≤ 4 mg/LFeb
Nitrogen, ammonia total [as N]30-day average≤ 1 mg/LAug
Nitrogen, ammonia total [as N]30-day average≤ 1.5 mg/LApr
Nitrogen, ammonia total [as N]30-day average≤ 1 mg/LJul
Nitrogen, ammonia total [as N]30-day average≤ 1.1 mg/LSep
Nitrogen, ammonia total [as N]30-day average≤ 2.5 mg/LDec
Nitrogen, ammonia total [as N]30-day average≤ 3.4 mg/LJan
Nitrogen, ammonia total [as N]30-day average≤ 2.3 mg/LNov
Nitrogen, ammonia total [as N]30-day average≤ 1.7 mg/LMay
Nitrogen, ammonia total [as N]30-day average≤ 3.4 mg/LMar
Nitrogen, ammonia total [as N]30-day average≤ 1.3 mg/LJun
Nitrogen, ammonia total [as N]30-day average≤ 1.6 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 8 mg/LFeb
Nitrogen, ammonia total [as N]daily maximum≤ 8 mg/LAug
Nitrogen, ammonia total [as N]daily maximum≤ 8 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 8 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 8 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 8 mg/LDec
Nitrogen, ammonia total [as N]daily maximum≤ 8 mg/LJan
Nitrogen, ammonia total [as N]daily maximum≤ 8 mg/LNov
Nitrogen, ammonia total [as N]daily maximum≤ 8 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 8 mg/LMar
Nitrogen, ammonia total [as N]daily maximum≤ 8 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 8 mg/LOct
Nitrogen, ammonia total [as N]30-day average≤ 48.4 lb/dFeb
Nitrogen, ammonia total [as N]30-day average≤ 48.4 lb/dAug
Nitrogen, ammonia total [as N]30-day average≤ 48.4 lb/dApr
Nitrogen, ammonia total [as N]30-day average≤ 48.4 lb/dJul
Nitrogen, ammonia total [as N]30-day average≤ 48.4 lb/dSep
Nitrogen, ammonia total [as N]30-day average≤ 48.4 lb/dDec
Nitrogen, ammonia total [as N]30-day average≤ 48.4 lb/dJan
Nitrogen, ammonia total [as N]30-day average≤ 48.4 lb/dNov
Nitrogen, ammonia total [as N]30-day average≤ 48.4 lb/dMay
Nitrogen, ammonia total [as N]30-day average≤ 48.4 lb/dMar
Nitrogen, ammonia total [as N]30-day average≤ 48.4 lb/dJun
Nitrogen, ammonia total [as N]30-day average≤ 48.4 lb/dOct
Nitrogen, ammonia total [as N]daily maximum≤ 96.7 lb/dFeb
Nitrogen, ammonia total [as N]daily maximum≤ 96.7 lb/dAug
Nitrogen, ammonia total [as N]daily maximum≤ 96.7 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 96.7 lb/dJul
Nitrogen, ammonia total [as N]daily maximum≤ 96.7 lb/dSep
Nitrogen, ammonia total [as N]daily maximum≤ 96.7 lb/dDec
Nitrogen, ammonia total [as N]daily maximum≤ 96.7 lb/dJan
Nitrogen, ammonia total [as N]daily maximum≤ 96.7 lb/dNov
Nitrogen, ammonia total [as N]daily maximum≤ 96.7 lb/dMay
Nitrogen, ammonia total [as N]daily maximum≤ 96.7 lb/dMar
Nitrogen, ammonia total [as N]daily maximum≤ 96.7 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ 96.7 lb/dOct
Nitrogen, Kjeldahl, total [as N]30-day averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]30-day averagereport only (lb/d)all year
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (lb/d)all year
Phosphorus, total [as P]30-day averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]30-day averagereport only (lb/d)all year
Phosphorus, total [as P]daily maximumreport only (lb/d)all year
Chloride [as Cl]30-day average≤ 471 mg/Lall year
Chloride [as Cl]daily maximum≤ 762 mg/Lall year
Copper, total [as Cu]30-day average≤ .01687 mg/Lall year
Copper, total [as Cu]daily maximum≤ .0269 mg/Lall year
Chlorine, total residual30-day average≤ .007 mg/Lall year
Chlorine, total residualdaily maximum≤ .019 mg/Lall year
E. coligeometric mean≤ 172 #/100mLJan, Feb, Dec
E. coligeometric mean≤ 126 #/100mLMar–Nov
Coliform, fecal generaldaily maximum≤ 400 MPN/100mLall year

How strict are these limits?

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

Same industry: the 48 Food and Kindred Products permits in Iowa.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IA0077135 · MCP: https://passage-data.com/mcp