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J.T. Dean

Chicken Eggs, Sioux Center, Iowa. NPDES permit IA0053315, in force until Feb 28, 2031. Last 12 months: over a limit 40 times (last March 2026), 15 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (24 values), outfall 002 form A monthly (15 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
82 values over a limit, 0 required values missing, 0 of 12 reports late

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

All 40 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, carbonaceous [5 day, 20 C], 7-day average1.420284≤ 1 lb/d42%
October 2025E. coli, geometric mean286.2466≤ 126 #/100mL127%
October 2025Nitrogen, ammonia total [as N], 30-day average.540208≤ .04 lb/d1251%
October 2025Nitrogen, ammonia total [as N], 30-day average10.6625≤ 1.6 mg/L566%
October 2025Nitrogen, ammonia total [as N], daily maximum1.587956≤ .39 lb/d307%
October 2025Nitrogen, ammonia total [as N], daily maximum18.2≤ 15.7 mg/L16%
November 2025E. coli, geometric mean1391.624≤ 126 #/100mL1004%
November 2025Nitrogen, ammonia total [as N], 30-day average.415791≤ .06 lb/d593%
November 2025Nitrogen, ammonia total [as N], 30-day average18.1925≤ 2.3 mg/L691%
November 2025Nitrogen, ammonia total [as N], daily maximum.56336≤ .37 lb/d52%
November 2025Nitrogen, ammonia total [as N], daily maximum24.8≤ 14.7 mg/L69%
December 2025BOD, carbonaceous [5 day, 20 C], 30-day average.775366≤ .6 lb/d29%
December 2025BOD, carbonaceous [5 day, 20 C], 30-day average36.32≤ 25 mg/L45%
December 2025BOD, carbonaceous [5 day, 20 C], 7-day average1.223876≤ 1 lb/d22%
December 2025BOD, carbonaceous [5 day, 20 C], 7-day average47.6≤ 40 mg/L19%
December 2025Nitrogen, ammonia total [as N], 30-day average.668981≤ .06 lb/d1015%
December 2025Nitrogen, ammonia total [as N], 30-day average27.04≤ 2.5 mg/L982%
December 2025Nitrogen, ammonia total [as N], daily maximum1.033759≤ .4 lb/d158%
December 2025Nitrogen, ammonia total [as N], daily maximum38.8≤ 16 mg/L143%
December 2025Oxygen, dissolved [DO], daily minimum1.3≥ 5 mg/L74%
January 2026BOD, carbonaceous [5 day, 20 C], 30-day average34.53333≤ 25 mg/L38%
January 2026BOD, carbonaceous [5 day, 20 C], 7-day average44.5≤ 40 mg/L11%
January 2026Nitrogen, ammonia total [as N], 30-day average.679945≤ .09 lb/d655%
January 2026Nitrogen, ammonia total [as N], 30-day average46.96666≤ 3.4 mg/L1281%
January 2026Nitrogen, ammonia total [as N], daily maximum.793987≤ .38 lb/d109%
January 2026Nitrogen, ammonia total [as N], daily maximum52.8≤ 15.2 mg/L247%
February 2026BOD, carbonaceous [5 day, 20 C], 30-day average33.85≤ 25 mg/L35%
February 2026BOD, carbonaceous [5 day, 20 C], 7-day average48.2≤ 40 mg/L21%
February 2026Nitrogen, ammonia total [as N], 30-day average.743019≤ .1 lb/d643%
February 2026Nitrogen, ammonia total [as N], 30-day average46.075≤ 4 mg/L1052%
February 2026Nitrogen, ammonia total [as N], daily maximum.868066≤ .36 lb/d141%
February 2026Nitrogen, ammonia total [as N], daily maximum49.6≤ 14.2 mg/L249%
March 2026BOD, carbonaceous [5 day, 20 C], 30-day average42.3≤ .6 lb/d6950%
March 2026BOD, carbonaceous [5 day, 20 C], 7-day average54.6≤ 1 lb/d5360%
March 2026Nitrogen, ammonia total [as N], 30-day average1.134339≤ .05 lb/d2169%
March 2026Nitrogen, ammonia total [as N], 30-day average49.33336≤ 2.1 mg/L2249%
March 2026Nitrogen, ammonia total [as N], daily maximum1.52621≤ .37 lb/d312%
March 2026Nitrogen, ammonia total [as N], daily maximum55.4≤ 14.7 mg/L277%
March 2026Solids, total suspended, 30-day average31≤ .8 lb/d3775%
March 2026Solids, total suspended, 7-day average44≤ 1.1 lb/d3900%

Limits in force (127)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily minimum≥ 5 mg/Lall year001
BOD, 5-day, 20 deg. C30-day averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year001
BOD, 5-day, 20 deg. C30-day averagereport only (lb/d)all year001
BOD, 5-day, 20 deg. Cdaily maximumreport only (lb/d)all year001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspended30-day average≤ 30 mg/Lall year001
Solids, total suspended7-day average≤ 45 mg/Lall year001
Solids, total suspended30-day average≤ .8 lb/dall year001
Solids, total suspended7-day average≤ 1.1 lb/dall year001
Solids, total suspended30-day averagereport only (mg/L)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Solids, total suspended30-day averagereport only (lb/d)all year001
Solids, total suspendeddaily maximumreport only (lb/d)all year001
Nitrogen, ammonia total [as N]30-day average≤ 4 mg/LFeb001
Nitrogen, ammonia total [as N]30-day average≤ 1.5 mg/LApr001
Nitrogen, ammonia total [as N]30-day average≤ 1 mg/LAug001
Nitrogen, ammonia total [as N]30-day average≤ 1.7 mg/LMay001
Nitrogen, ammonia total [as N]30-day average≤ 2.1 mg/LMar001
Nitrogen, ammonia total [as N]30-day average≤ 3.4 mg/LJan001
Nitrogen, ammonia total [as N]30-day average≤ 1.6 mg/LOct001
Nitrogen, ammonia total [as N]30-day average≤ 1 mg/LJul001
Nitrogen, ammonia total [as N]30-day average≤ 2.3 mg/LNov001
Nitrogen, ammonia total [as N]30-day average≤ 1.3 mg/LJun001
Nitrogen, ammonia total [as N]30-day average≤ 2.5 mg/LDec001
Nitrogen, ammonia total [as N]30-day average≤ 1.1 mg/LSep001
Nitrogen, ammonia total [as N]daily maximum≤ 14.2 mg/LFeb001
Nitrogen, ammonia total [as N]daily maximum≤ 15.7 mg/LApr001
Nitrogen, ammonia total [as N]daily maximum≤ 16.2 mg/LAug001
Nitrogen, ammonia total [as N]daily maximum≤ 15.2 mg/LMay001
Nitrogen, ammonia total [as N]daily maximum≤ 14.7 mg/LMar001
Nitrogen, ammonia total [as N]daily maximum≤ 15.2 mg/LJan001
Nitrogen, ammonia total [as N]daily maximum≤ 15.7 mg/LOct001
Nitrogen, ammonia total [as N]daily maximum≤ 17.6 mg/LJul001
Nitrogen, ammonia total [as N]daily maximum≤ 14.7 mg/LNov001
Nitrogen, ammonia total [as N]daily maximum≤ 14.4 mg/LJun001
Nitrogen, ammonia total [as N]daily maximum≤ 16 mg/LDec001
Nitrogen, ammonia total [as N]daily maximum≤ 16.5 mg/LSep001
Nitrogen, ammonia total [as N]30-day average≤ .1 lb/dFeb001
Nitrogen, ammonia total [as N]30-day average≤ .04 lb/dApr001
Nitrogen, ammonia total [as N]30-day average≤ .02 lb/dAug001
Nitrogen, ammonia total [as N]30-day average≤ .04 lb/dMay001
Nitrogen, ammonia total [as N]30-day average≤ .05 lb/dMar001
Nitrogen, ammonia total [as N]30-day average≤ .09 lb/dJan001
Nitrogen, ammonia total [as N]30-day average≤ .04 lb/dOct001
Nitrogen, ammonia total [as N]30-day average≤ .03 lb/dJul001
Nitrogen, ammonia total [as N]30-day average≤ .06 lb/dNov001
Nitrogen, ammonia total [as N]30-day average≤ .03 lb/dJun001
Nitrogen, ammonia total [as N]30-day average≤ .06 lb/dDec001
Nitrogen, ammonia total [as N]30-day average≤ .03 lb/dSep001
Nitrogen, ammonia total [as N]daily maximum≤ .36 lb/dFeb001
Nitrogen, ammonia total [as N]daily maximum≤ .39 lb/dApr001
Nitrogen, ammonia total [as N]daily maximum≤ .41 lb/dAug001
Nitrogen, ammonia total [as N]daily maximum≤ .38 lb/dMay001
Nitrogen, ammonia total [as N]daily maximum≤ .37 lb/dMar001
Nitrogen, ammonia total [as N]daily maximum≤ .38 lb/dJan001
Nitrogen, ammonia total [as N]daily maximum≤ .39 lb/dOct001
Nitrogen, ammonia total [as N]daily maximum≤ .44 lb/dJul001
Nitrogen, ammonia total [as N]daily maximum≤ .37 lb/dNov001
Nitrogen, ammonia total [as N]daily maximum≤ .36 lb/dJun001
Nitrogen, ammonia total [as N]daily maximum≤ .4 lb/dDec001
Nitrogen, ammonia total [as N]daily maximum≤ .41 lb/dSep001
E. coligeometric mean≤ 126 #/100mLMar–Nov001
BOD, carbonaceous [5 day, 20 C]30-day average≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]7-day average≤ 40 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]30-day average≤ .6 lb/dall year001
BOD, carbonaceous [5 day, 20 C]7-day average≤ 1 lb/dall year001
Oxygen, dissolved [DO]daily minimum≥ 1 mg/Lall year002
pHdaily minimum≥ 6 SUall year002
pHdaily maximum≤ 9 SUall year002
Solids, total suspended30-day average≤ 30 mg/Lall year002
Solids, total suspended7-day average≤ 45 mg/Lall year002
Solids, total suspended30-day average≤ .8 lb/dall year002
Solids, total suspended7-day average≤ 1.1 lb/dall year002
Nitrogen, ammonia total [as N]30-day average≤ 40.7 mg/LApr002
Nitrogen, ammonia total [as N]30-day average≤ 42.7 mg/LSep002
Nitrogen, ammonia total [as N]30-day average≤ 42 mg/LAug002
Nitrogen, ammonia total [as N]30-day average≤ 38.1 mg/LNov002
Nitrogen, ammonia total [as N]30-day average≤ 37.4 mg/LJun002
Nitrogen, ammonia total [as N]30-day average≤ 45.6 mg/LJul002
Nitrogen, ammonia total [as N]30-day average≤ 38.1 mg/LMar002
Nitrogen, ammonia total [as N]30-day average≤ 39.4 mg/LJan002
Nitrogen, ammonia total [as N]30-day average≤ 36.8 mg/LFeb002
Nitrogen, ammonia total [as N]30-day average≤ 41.4 mg/LDec002
Nitrogen, ammonia total [as N]30-day average≤ 40.7 mg/LOct002
Nitrogen, ammonia total [as N]30-day average≤ 39.4 mg/LMay002
Nitrogen, ammonia total [as N]daily maximum≤ 40.7 mg/LApr002
Nitrogen, ammonia total [as N]daily maximum≤ 42.7 mg/LSep002
Nitrogen, ammonia total [as N]daily maximum≤ 42 mg/LAug002
Nitrogen, ammonia total [as N]daily maximum≤ 38.1 mg/LNov002
Nitrogen, ammonia total [as N]daily maximum≤ 37.4 mg/LJun002
Nitrogen, ammonia total [as N]daily maximum≤ 45.6 mg/LJul002
Nitrogen, ammonia total [as N]daily maximum≤ 38.1 mg/LMar002
Nitrogen, ammonia total [as N]daily maximum≤ 39.4 mg/LJan002
Nitrogen, ammonia total [as N]daily maximum≤ 36.8 mg/LFeb002
Nitrogen, ammonia total [as N]daily maximum≤ 41.4 mg/LDec002
Nitrogen, ammonia total [as N]daily maximum≤ 40.7 mg/LOct002
Nitrogen, ammonia total [as N]daily maximum≤ 39.4 mg/LMay002
Nitrogen, ammonia total [as N]30-day average≤ 1.02 lb/dApr002
Nitrogen, ammonia total [as N]30-day average≤ 1.07 lb/dSep002
Nitrogen, ammonia total [as N]30-day average≤ 1.05 lb/dAug002
Nitrogen, ammonia total [as N]30-day average≤ .95 lb/dNov002
Nitrogen, ammonia total [as N]30-day average≤ .94 lb/dJun002
Nitrogen, ammonia total [as N]30-day average≤ 1.14 lb/dJul002
Nitrogen, ammonia total [as N]30-day average≤ .95 lb/dMar002
Nitrogen, ammonia total [as N]30-day average≤ .98 lb/dJan002
Nitrogen, ammonia total [as N]30-day average≤ .92 lb/dFeb002
Nitrogen, ammonia total [as N]30-day average≤ 1.03 lb/dDec002
Nitrogen, ammonia total [as N]30-day average≤ 1.02 lb/dOct002
Nitrogen, ammonia total [as N]30-day average≤ .98 lb/dMay002
Nitrogen, ammonia total [as N]daily maximum≤ 1.02 lb/dApr002
Nitrogen, ammonia total [as N]daily maximum≤ 1.07 lb/dSep002
Nitrogen, ammonia total [as N]daily maximum≤ 1.05 lb/dAug002
Nitrogen, ammonia total [as N]daily maximum≤ .95 lb/dNov002
Nitrogen, ammonia total [as N]daily maximum≤ .94 lb/dJun002
Nitrogen, ammonia total [as N]daily maximum≤ 1.14 lb/dJul002
Nitrogen, ammonia total [as N]daily maximum≤ .95 lb/dMar002
Nitrogen, ammonia total [as N]daily maximum≤ .98 lb/dJan002
Nitrogen, ammonia total [as N]daily maximum≤ .92 lb/dFeb002
Nitrogen, ammonia total [as N]daily maximum≤ 1.03 lb/dDec002
Nitrogen, ammonia total [as N]daily maximum≤ 1.02 lb/dOct002
Nitrogen, ammonia total [as N]daily maximum≤ .98 lb/dMay002
BOD, carbonaceous [5 day, 20 C]30-day average≤ 25 mg/Lall year002
BOD, carbonaceous [5 day, 20 C]7-day average≤ 40 mg/Lall year002
BOD, carbonaceous [5 day, 20 C]30-day average≤ .6 lb/dall year002
BOD, carbonaceous [5 day, 20 C]7-day average≤ 1 lb/dall year002

How strict are these limits?

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

Same industry: the 4 Agricultural Production — Livestock and Animal Specialties permits in Iowa.

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