East Dubuque Nitrogen Fertilizers LLC — NPDES permit IL0003930: limits, due date and EPA's record

Nitrogenous Fertilizers, East Dubuque, Illinois. NPDES permit IL0003930 expired Sep 30, 2020; its limits still apply. Last 12 months: over a limit 7 times (last August 2026), 3 of 35 reports late. Source: EPA ECHO, Oct 22, 2026.

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

Period ending	Outfall	Parameter	Reported	Limit	Over by
November 2025	001	Nitrogen, ammonia total [as N], daily maximum	680 lb/d	≤ 645 lb/d	5%
January 2026	001	Solids, total suspended, 30-day average	39 mg/L	≤ 30 mg/L	30%
June 2026	001	Nitrogen, nitrate total [as N], 30-day average	255.44 lb/d	≤ 155 lb/d	65%
June 2026	008	Nitrogen, ammonia total [as N], daily maximum	26.6 mg/L	≤ 2.8 mg/L	850%
June 2026	008	Solids, total suspended, 30-day average	105 mg/L	≤ 30 mg/L	250%
June 2026	008	Solids, total suspended, daily maximum	105 mg/L	≤ 60 mg/L	75%
August 2026	001	Solids, total suspended, 30-day average	32.6 mg/L	≤ 30 mg/L	9%

Limits in force (230)

Parameter	Statistic	Limit	Months	Outfall
Temperature, water deg. fahrenheit	monthly maximum	≤ 63 deg F	Jan, Feb, Mar, Dec	001
Temperature, water deg. fahrenheit	monthly maximum	≤ 63 deg F	Jan, Feb, Mar, Dec	001
Temperature, water deg. fahrenheit	monthly maximum	≤ 93 deg F	Apr–Nov	001
Temperature, water deg. fahrenheit	monthly maximum	≤ 93 deg F	Apr–Nov	001
BOD, 5-day, 20 deg. C	30-day average	≤ 30 mg/L	all year	001
BOD, 5-day, 20 deg. C	30-day average	≤ 30 mg/L	all year	001
BOD, 5-day, 20 deg. C	30-day average	≤ 30 mg/L	all year	001
BOD, 5-day, 20 deg. C	30-day average	≤ 30 mg/L	all year	001
BOD, 5-day, 20 deg. C	daily maximum	≤ 60 mg/L	all year	001
BOD, 5-day, 20 deg. C	daily maximum	≤ 60 mg/L	all year	001
BOD, 5-day, 20 deg. C	daily maximum	≤ 60 mg/L	all year	001
BOD, 5-day, 20 deg. C	daily maximum	≤ 60 mg/L	all year	001
BOD, 5-day, 20 deg. C	30-day average	≤ 247 lb/d	all year	001
BOD, 5-day, 20 deg. C	30-day average	≤ 247 lb/d	all year	001
BOD, 5-day, 20 deg. C	30-day average	≤ 257 lb/d	all year	001
BOD, 5-day, 20 deg. C	30-day average	≤ 257 lb/d	all year	001
BOD, 5-day, 20 deg. C	daily maximum	≤ 493 lb/d	all year	001
BOD, 5-day, 20 deg. C	daily maximum	≤ 493 lb/d	all year	001
BOD, 5-day, 20 deg. C	daily maximum	≤ 514 lb/d	all year	001
BOD, 5-day, 20 deg. C	daily maximum	≤ 514 lb/d	all year	001
pH	monthly minimum	≥ 6 SU	all year	001
pH	monthly minimum	≥ 6 SU	all year	001
pH	monthly maximum	≤ 9 SU	all year	001
pH	monthly maximum	≤ 9 SU	all year	001
Solids, total suspended	30-day average	≤ 30 mg/L	all year	001
Solids, total suspended	30-day average	≤ 30 mg/L	all year	001
Solids, total suspended	30-day average	≤ 30 mg/L	all year	001
Solids, total suspended	30-day average	≤ 30 mg/L	all year	001
Solids, total suspended	daily maximum	≤ 60 mg/L	all year	001
Solids, total suspended	daily maximum	≤ 60 mg/L	all year	001
Solids, total suspended	daily maximum	≤ 60 mg/L	all year	001
Solids, total suspended	daily maximum	≤ 60 mg/L	all year	001
Solids, total suspended	30-day average	≤ 247 lb/d	all year	001
Solids, total suspended	30-day average	≤ 247 lb/d	all year	001
Solids, total suspended	30-day average	≤ 257 lb/d	all year	001
Solids, total suspended	30-day average	≤ 257 lb/d	all year	001
Solids, total suspended	daily maximum	≤ 493 lb/d	all year	001
Solids, total suspended	daily maximum	≤ 493 lb/d	all year	001
Solids, total suspended	daily maximum	≤ 514 lb/d	all year	001
Solids, total suspended	daily maximum	≤ 514 lb/d	all year	001
Oil & Grease	30-day average	≤ 15 mg/L	all year	001
Oil & Grease	30-day average	≤ 15 mg/L	all year	001
Oil & Grease	30-day average	≤ 15 mg/L	all year	001
Oil & Grease	30-day average	≤ 15 mg/L	all year	001
Oil & Grease	daily maximum	≤ 30 mg/L	all year	001
Oil & Grease	daily maximum	≤ 30 mg/L	all year	001
Oil & Grease	daily maximum	≤ 30 mg/L	all year	001
Oil & Grease	daily maximum	≤ 30 mg/L	all year	001
Oil & Grease	30-day average	≤ 123 lb/d	all year	001
Oil & Grease	30-day average	≤ 123 lb/d	all year	001
Oil & Grease	30-day average	≤ 128 lb/d	all year	001
Oil & Grease	30-day average	≤ 128 lb/d	all year	001
Oil & Grease	daily maximum	≤ 246 lb/d	all year	001
Oil & Grease	daily maximum	≤ 246 lb/d	all year	001
Oil & Grease	daily maximum	≤ 257 lb/d	all year	001
Oil & Grease	daily maximum	≤ 257 lb/d	all year	001
Nitrogen, organic total [as N]	semi-annual maximum	report only (mg/L)	all year	001
Nitrogen, organic total [as N]	semi-annual maximum	report only (mg/L)	all year	001
Nitrogen, organic total [as N]	semi-annual maximum	report only (mg/L)	all year	001
Nitrogen, organic total [as N]	semi-annual maximum	report only (mg/L)	all year	001
Nitrogen, organic total [as N]	daily maximum	report only (mg/L)	all year	001
Nitrogen, organic total [as N]	daily maximum	report only (mg/L)	all year	001
Nitrogen, organic total [as N]	daily maximum	report only (mg/L)	all year	001
Nitrogen, organic total [as N]	daily maximum	report only (mg/L)	all year	001
Nitrogen, organic total [as N]	semi-annual average	≤ 904 lb/d	all year	001
Nitrogen, organic total [as N]	semi-annual average	≤ 904 lb/d	all year	001
Nitrogen, organic total [as N]	semi-annual average	≤ 904 lb/d	all year	001
Nitrogen, organic total [as N]	semi-annual average	≤ 904 lb/d	all year	001
Nitrogen, organic total [as N]	30-day average	≤ 744 lb/d	all year	001
Nitrogen, organic total [as N]	30-day average	≤ 744 lb/d	all year	001
Nitrogen, organic total [as N]	30-day average	≤ 744 lb/d	all year	001
Nitrogen, organic total [as N]	30-day average	≤ 744 lb/d	all year	001
Nitrogen, organic total [as N]	semi-annual maximum	≤ 1742 lb/d	all year	001
Nitrogen, organic total [as N]	semi-annual maximum	≤ 1742 lb/d	all year	001
Nitrogen, organic total [as N]	semi-annual maximum	≤ 1742 lb/d	all year	001
Nitrogen, organic total [as N]	semi-annual maximum	≤ 1742 lb/d	all year	001
Nitrogen, organic total [as N]	daily maximum	≤ 1431 lb/d	all year	001
Nitrogen, organic total [as N]	daily maximum	≤ 1431 lb/d	all year	001
Nitrogen, organic total [as N]	daily maximum	≤ 1431 lb/d	all year	001
Nitrogen, organic total [as N]	daily maximum	≤ 1431 lb/d	all year	001
Nitrogen, ammonia total [as N]	daily maximum	report only (mg/L)	all year	001
Nitrogen, ammonia total [as N]	daily maximum	report only (mg/L)	all year	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 645 lb/d	all year	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 645 lb/d	all year	001
Nitrogen, nitrate total [as N]	semi-annual maximum	report only (mg/L)	all year	001
Nitrogen, nitrate total [as N]	semi-annual maximum	report only (mg/L)	all year	001
Nitrogen, nitrate total [as N]	semi-annual maximum	report only (mg/L)	all year	001
Nitrogen, nitrate total [as N]	semi-annual maximum	report only (mg/L)	all year	001
Nitrogen, nitrate total [as N]	daily maximum	report only (mg/L)	all year	001
Nitrogen, nitrate total [as N]	daily maximum	report only (mg/L)	all year	001
Nitrogen, nitrate total [as N]	daily maximum	report only (mg/L)	all year	001
Nitrogen, nitrate total [as N]	daily maximum	report only (mg/L)	all year	001
Nitrogen, nitrate total [as N]	semi-annual average	≤ 210 lb/d	all year	001
Nitrogen, nitrate total [as N]	semi-annual average	≤ 210 lb/d	all year	001
Nitrogen, nitrate total [as N]	semi-annual average	≤ 210 lb/d	all year	001
Nitrogen, nitrate total [as N]	semi-annual average	≤ 210 lb/d	all year	001
Nitrogen, nitrate total [as N]	30-day average	≤ 155 lb/d	all year	001
Nitrogen, nitrate total [as N]	30-day average	≤ 155 lb/d	all year	001
Nitrogen, nitrate total [as N]	30-day average	≤ 155 lb/d	all year	001
Nitrogen, nitrate total [as N]	30-day average	≤ 155 lb/d	all year	001
Nitrogen, nitrate total [as N]	semi-annual maximum	≤ 587 lb/d	all year	001
Nitrogen, nitrate total [as N]	semi-annual maximum	≤ 587 lb/d	all year	001
Nitrogen, nitrate total [as N]	semi-annual maximum	≤ 587 lb/d	all year	001
Nitrogen, nitrate total [as N]	semi-annual maximum	≤ 587 lb/d	all year	001
Nitrogen, nitrate total [as N]	daily maximum	≤ 441 lb/d	all year	001
Nitrogen, nitrate total [as N]	daily maximum	≤ 441 lb/d	all year	001
Nitrogen, nitrate total [as N]	daily maximum	≤ 441 lb/d	all year	001
Nitrogen, nitrate total [as N]	daily maximum	≤ 441 lb/d	all year	001
Nitrogen, Kjeldahl, total [as N]	semi-annual maximum	report only (mg/L)	all year	001
Nitrogen, Kjeldahl, total [as N]	semi-annual maximum	report only (mg/L)	all year	001
Nitrogen, Kjeldahl, total [as N]	semi-annual maximum	report only (mg/L)	all year	001
Nitrogen, Kjeldahl, total [as N]	semi-annual maximum	report only (mg/L)	all year	001
Nitrogen, Kjeldahl, total [as N]	semi-annual maximum	report only (lb/d)	all year	001
Nitrogen, Kjeldahl, total [as N]	semi-annual maximum	report only (lb/d)	all year	001
Nitrogen, Kjeldahl, total [as N]	semi-annual maximum	report only (lb/d)	all year	001
Nitrogen, Kjeldahl, total [as N]	semi-annual maximum	report only (lb/d)	all year	001
Zinc, total [as Zn]	30-day average	≤ 1 mg/L	all year	001
Zinc, total [as Zn]	30-day average	≤ 1 mg/L	all year	001
Zinc, total [as Zn]	30-day average	≤ 1 mg/L	all year	001
Zinc, total [as Zn]	30-day average	≤ 1 mg/L	all year	001
Zinc, total [as Zn]	daily maximum	≤ 2 mg/L	all year	001
Zinc, total [as Zn]	daily maximum	≤ 2 mg/L	all year	001
Zinc, total [as Zn]	daily maximum	≤ 2 mg/L	all year	001
Zinc, total [as Zn]	daily maximum	≤ 2 mg/L	all year	001
Zinc, total [as Zn]	30-day average	≤ 6 lb/d	all year	001
Zinc, total [as Zn]	30-day average	≤ 6 lb/d	all year	001
Zinc, total [as Zn]	30-day average	≤ 8.6 lb/d	all year	001
Zinc, total [as Zn]	30-day average	≤ 8.6 lb/d	all year	001
Zinc, total [as Zn]	daily maximum	≤ 12 lb/d	all year	001
Zinc, total [as Zn]	daily maximum	≤ 12 lb/d	all year	001
Zinc, total [as Zn]	daily maximum	≤ 17.1 lb/d	all year	001
Zinc, total [as Zn]	daily maximum	≤ 17.1 lb/d	all year	001
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	001
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	001
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	001
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	001
Chlorine, total residual	daily maximum	≤ .05 mg/L	all year	001
Chlorine, total residual	daily maximum	≤ .05 mg/L	all year	001
Temperature, water deg. fahrenheit	monthly maximum	≤ 63 deg F	Jan, Feb, Mar, Dec	008
Temperature, water deg. fahrenheit	monthly maximum	≤ 63 deg F	Jan, Feb, Mar, Dec	008
Temperature, water deg. fahrenheit	monthly maximum	≤ 93 deg F	Apr–Nov	008
Temperature, water deg. fahrenheit	monthly maximum	≤ 93 deg F	Apr–Nov	008
BOD, 5-day, 20 deg. C	30-day average	≤ 30 mg/L	all year	008
BOD, 5-day, 20 deg. C	30-day average	≤ 30 mg/L	all year	008
BOD, 5-day, 20 deg. C	daily maximum	≤ 60 mg/L	all year	008
BOD, 5-day, 20 deg. C	daily maximum	≤ 60 mg/L	all year	008
pH	monthly minimum	≥ 6 SU	all year	008
pH	monthly minimum	≥ 6 SU	all year	008
pH	monthly maximum	≤ 9 SU	all year	008
pH	monthly maximum	≤ 9 SU	all year	008
Solids, total suspended	30-day average	≤ 30 mg/L	all year	008
Solids, total suspended	30-day average	≤ 30 mg/L	all year	008
Solids, total suspended	daily maximum	≤ 60 mg/L	all year	008
Solids, total suspended	daily maximum	≤ 60 mg/L	all year	008
Oil & Grease	30-day average	≤ 15 mg/L	all year	008
Oil & Grease	30-day average	≤ 15 mg/L	all year	008
Oil & Grease	30-day average	≤ 15 mg/L	all year	008
Oil & Grease	30-day average	≤ 15 mg/L	all year	008
Oil & Grease	daily maximum	≤ 30 mg/L	all year	008
Oil & Grease	daily maximum	≤ 30 mg/L	all year	008
Oil & Grease	daily maximum	≤ 30 mg/L	all year	008
Oil & Grease	daily maximum	≤ 30 mg/L	all year	008
Nitrogen, organic total [as N]	daily maximum	report only (lb/d)	all year	008
Nitrogen, organic total [as N]	daily maximum	report only (lb/d)	all year	008
Nitrogen, ammonia total [as N]	daily maximum	≤ 4.2 mg/L	Mar, Apr, May, Sep, Oct	008
Nitrogen, ammonia total [as N]	daily maximum	≤ 4.2 mg/L	Mar, Apr, May, Sep, Oct	008
Nitrogen, ammonia total [as N]	daily maximum	≤ 2.8 mg/L	Jun–Aug	008
Nitrogen, ammonia total [as N]	daily maximum	≤ 2.8 mg/L	Jun–Aug	008
Nitrogen, ammonia total [as N]	daily maximum	≤ 2.6 mg/L	Jan, Feb, Nov, Dec	008
Nitrogen, ammonia total [as N]	daily maximum	≤ 2.6 mg/L	Jan, Feb, Nov, Dec	008
Nitrogen, ammonia total [as N]	daily maximum	report only (lb/d)	Mar, Apr, May, Sep, Oct	008
Nitrogen, ammonia total [as N]	daily maximum	report only (lb/d)	Mar, Apr, May, Sep, Oct	008
Nitrogen, ammonia total [as N]	daily maximum	report only (lb/d)	Jun–Aug	008
Nitrogen, ammonia total [as N]	daily maximum	report only (lb/d)	Jun–Aug	008
Nitrogen, ammonia total [as N]	daily maximum	report only (lb/d)	Jan, Feb, Nov, Dec	008
Nitrogen, ammonia total [as N]	daily maximum	report only (lb/d)	Jan, Feb, Nov, Dec	008
Nitrogen, nitrate total [as N]	daily maximum	report only (lb/d)	all year	008
Nitrogen, nitrate total [as N]	daily maximum	report only (lb/d)	all year	008
Nitrogen, Kjeldahl, total [as N]	daily maximum	report only (mg/L)	all year	008
Nitrogen, Kjeldahl, total [as N]	daily maximum	report only (mg/L)	all year	008
Nitrogen, Kjeldahl, total [as N]	daily maximum	report only (lb/d)	all year	008
Nitrogen, Kjeldahl, total [as N]	daily maximum	report only (lb/d)	all year	008
Zinc, total [as Zn]	daily maximum	≤ .202 mg/L	all year	008
Zinc, total [as Zn]	daily maximum	≤ .202 mg/L	all year	008
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	008
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	008
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	008
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	008
Chlorine, total residual	daily maximum	≤ .05 mg/L	all year	008
Chlorine, total residual	daily maximum	≤ .05 mg/L	all year	008
Temperature, water deg. fahrenheit	30-day average	report only (deg F)	all year	A01
Temperature, water deg. fahrenheit	daily maximum	report only (deg F)	all year	A01
BOD, 5-day, 20 deg. C	30-day average	report only (mg/L)	all year	A01
BOD, 5-day, 20 deg. C	daily maximum	report only (mg/L)	all year	A01
BOD, 5-day, 20 deg. C	30-day average	report only (lb/d)	all year	A01
BOD, 5-day, 20 deg. C	daily maximum	report only (lb/d)	all year	A01
pH	monthly minimum	report only (SU)	all year	A01
pH	monthly maximum	report only (SU)	all year	A01
Solids, total suspended	30-day average	report only (mg/L)	all year	A01
Solids, total suspended	daily maximum	report only (mg/L)	all year	A01
Solids, total suspended	30-day average	report only (lb/d)	all year	A01
Solids, total suspended	daily maximum	report only (lb/d)	all year	A01
Oil & Grease	30-day average	report only (mg/L)	all year	A01
Oil & Grease	daily maximum	report only (mg/L)	all year	A01
Oil & Grease	30-day average	report only (lb/d)	all year	A01
Oil & Grease	daily maximum	report only (lb/d)	all year	A01
Nitrogen, organic total [as N]	30-day average	report only (mg/L)	all year	A01
Nitrogen, organic total [as N]	daily maximum	report only (mg/L)	all year	A01
Nitrogen, organic total [as N]	30-day average	report only (lb/d)	all year	A01
Nitrogen, organic total [as N]	daily maximum	report only (lb/d)	all year	A01
Nitrogen, ammonia total [as N]	30-day average	report only (mg/L)	all year	A01
Nitrogen, ammonia total [as N]	daily maximum	report only (mg/L)	all year	A01
Nitrogen, ammonia total [as N]	30-day average	report only (lb/d)	all year	A01
Nitrogen, ammonia total [as N]	daily maximum	report only (lb/d)	all year	A01
Nitrogen, Kjeldahl, total [as N]	30-day average	report only (mg/L)	all year	A01
Nitrogen, Kjeldahl, total [as N]	daily maximum	report only (mg/L)	all year	A01
Nitrogen, Kjeldahl, total [as N]	30-day average	report only (lb/d)	all year	A01
Nitrogen, Kjeldahl, total [as N]	daily maximum	report only (lb/d)	all year	A01
Nitrite + Nitrate total [as N]	30-day average	report only (mg/L)	all year	A01
Nitrite + Nitrate total [as N]	daily maximum	report only (mg/L)	all year	A01
Nitrite + Nitrate total [as N]	30-day average	report only (lb/d)	all year	A01
Nitrite + Nitrate total [as N]	daily maximum	report only (lb/d)	all year	A01
Zinc, total [as Zn]	30-day average	report only (mg/L)	all year	A01
Zinc, total [as Zn]	daily maximum	report only (mg/L)	all year	A01
Zinc, total [as Zn]	30-day average	report only (lb/d)	all year	A01
Zinc, total [as Zn]	daily maximum	report only (lb/d)	all year	A01
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	A01
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	A01
Chlorine, total residual	30-day average	report only (mg/L)	all year	A01
Chlorine, total residual	daily maximum	report only (mg/L)	all year	A01

How strict are these limits?

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