JOHN DEERE DUBUQUE WORKS — NPDES permit IA0000051: limits, due date and EPA's record

NPDES permit IA0000051 · Major NON-POTW · effective, expires 2029-02-28 · EPA's file as of 2026-09-19

EPA's record, 2025-09-01 to 2026-08-31

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among IA permits in EPA's filings — check your permit).

Limits in force (199)

Outfall	Parameter	Statistic	Limit	Months
002	pH	DAILY MN	>= 6.4 SU	all year
002	pH	DAILY MX	<= 9 SU	all year
002	Oil & Grease	30DA AVG	<= 10 mg/L	all year
002	Oil & Grease	DAILY MX	<= 15 mg/L	all year
002	Chlorine, total residual	30DA AVG	<= .05 mg/L	all year
002	Chlorine, total residual	DAILY MX	<= .076 mg/L	all year
002	Chlorine, total residual	30DA AVG	<= 1.5 lb/d	all year
002	Chlorine, total residual	DAILY MX	<= 2.2 lb/d	all year
003	BOD, 5-day, 20 deg. C	30DA AVG	report only	all year
003	BOD, 5-day, 20 deg. C	DAILY MX	report only	all year
003	BOD, 5-day, 20 deg. C	30DA AVG	report only	all year
003	BOD, 5-day, 20 deg. C	DAILY MX	report only	all year
003	pH	DAILY MN	>= 6.4 SU	all year
003	pH	DAILY MX	<= 9 SU	all year
003	pH	30DA AVG	report only	all year
003	pH	DAILY MX	report only	all year
003	Solids, total suspended	30DA AVG	<= 30 mg/L	all year
003	Solids, total suspended	7 DA AVG	<= 45 mg/L	all year
003	Solids, total suspended	30DA AVG	<= 18 lb/d	all year
003	Solids, total suspended	7 DA AVG	<= 26 lb/d	all year
003	Solids, total suspended	30DA AVG	report only	all year
003	Solids, total suspended	DAILY MX	report only	all year
003	Solids, total suspended	30DA AVG	report only	all year
003	Solids, total suspended	DAILY MX	report only	all year
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 31.7 mg/L	Jun
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 30.8 mg/L	Oct
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 35.9 mg/L	Jul
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 34.8 mg/L	Mar
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 38.1 mg/L	Feb
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 30.8 mg/L	Apr
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 31.9 mg/L	Sep
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 35.7 mg/L	Jan
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 32.6 mg/L	May
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 29.4 mg/L	Nov
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 34 mg/L	Aug
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 31.2 mg/L	Dec
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 31.7 mg/L	Jun
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 30.8 mg/L	Oct
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 35.9 mg/L	Jul
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 34.8 mg/L	Mar
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 38.1 mg/L	Feb
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 30.8 mg/L	Apr
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 31.9 mg/L	Sep
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 35.7 mg/L	Jan
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 32.6 mg/L	May
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 29.4 mg/L	Nov
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 34 mg/L	Aug
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 31.2 mg/L	Dec
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 18.3 lb/d	Jun
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 18.4 lb/d	Oct
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 17.5 lb/d	Jul
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 19.6 lb/d	Mar
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 20.8 lb/d	Feb
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 18.4 lb/d	Apr
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 18.4 lb/d	Sep
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 20.2 lb/d	Jan
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 18.9 lb/d	May
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 17.5 lb/d	Nov
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 16.6 lb/d	Aug
003	Nitrogen, ammonia total [as N]	30DA AVG	<= 18.7 lb/d	Dec
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 18.3 lb/d	Jun
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 18.4 lb/d	Oct
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 21.3 lb/d	Jul
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 19.6 lb/d	Mar
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 20.8 lb/d	Feb
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 18.4 lb/d	Apr
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 19.2 lb/d	Sep
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 20.2 lb/d	Jan
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 18.9 lb/d	May
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 17.5 lb/d	Nov
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 19.9 lb/d	Aug
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 18.7 lb/d	Dec
003	Chlorine, total residual	30DA AVG	<= .32 mg/L	all year
003	Chlorine, total residual	DAILY MX	<= .32 mg/L	all year
003	Chlorine, total residual	30DA AVG	<= .341 lb/d	all year
003	Chlorine, total residual	DAILY MX	<= .346 lb/d	all year
003	E. coli	GEO MEAN	<= 126 #/100mL	Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
003	BOD, carbonaceous [5 day, 20 C]	30DA AVG	<= 25 mg/L	all year
003	BOD, carbonaceous [5 day, 20 C]	7 DA AVG	<= 40 mg/L	all year
003	BOD, carbonaceous [5 day, 20 C]	30DA AVG	<= 15 lb/d	all year
003	BOD, carbonaceous [5 day, 20 C]	7 DA AVG	<= 23 lb/d	all year
005	pH	DAILY MN	>= 6 SU	all year
005	pH	DAILY MX	<= 9 SU	all year
005	Oil & Grease	30DA AVG	<= 10 mg/L	all year
005	Oil & Grease	DAILY MX	<= 15 mg/L	all year
006	pH	DAILY MN	>= 6 SU	all year
006	pH	DAILY MX	<= 9 SU	all year
006	Oil & Grease	30DA AVG	<= 10 mg/L	all year
006	Oil & Grease	DAILY MX	<= 15 mg/L	all year
006	Toxicity [acute], Ceriodaphnia dubia	DAILY MX	<= 1 N=0;Y=1	all year
006	Toxicity [acute], Pimephales promelas [Fathead Minnow]	DAILY MX	<= 1 N=0;Y=1	all year
008	pH	DAILY MN	>= 6 SU	all year
008	pH	DAILY MX	<= 9 SU	all year
008	Oil & Grease	30DA AVG	<= 10 mg/L	all year
008	Oil & Grease	DAILY MX	<= 15 mg/L	all year
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 14.8 mg/L	Jun
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 11 mg/L	Mar
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 11 mg/L	May
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 11 mg/L	Nov
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 11 mg/L	Apr
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 11 mg/L	Dec
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 11 mg/L	Sep
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 26.3 mg/L	Jan
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 10 mg/L	Aug
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 11 mg/L	Oct
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 10 mg/L	Jul
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 18 mg/L	Feb
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 14.8 mg/L	Jun
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 16 mg/L	Mar
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 12.2 mg/L	May
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 14.8 mg/L	Nov
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 14.8 mg/L	Apr
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 16 mg/L	Dec
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 12.2 mg/L	Sep
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 26.3 mg/L	Jan
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 14.8 mg/L	Aug
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 14.8 mg/L	Oct
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 14.8 mg/L	Jul
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 18 mg/L	Feb
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 5.1 lb/d	Jun
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 8.9 lb/d	Mar
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 5 lb/d	May
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 6.1 lb/d	Nov
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 6.1 lb/d	Apr
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 7.4 lb/d	Dec
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 5 lb/d	Sep
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 10.7 lb/d	Jan
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 6.1 lb/d	Aug
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 6.1 lb/d	Oct
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 6.1 lb/d	Jul
008	Nitrogen, ammonia total [as N]	30DA AVG	<= 7.4 lb/d	Feb
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 6.1 lb/d	Jun
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 8.9 lb/d	Mar
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 5 lb/d	May
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 6.1 lb/d	Nov
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 6.1 lb/d	Apr
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 7.4 lb/d	Dec
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 5 lb/d	Sep
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 10.7 lb/d	Jan
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 6.1 lb/d	Aug
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 6.1 lb/d	Oct
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 6.1 lb/d	Jul
008	Nitrogen, ammonia total [as N]	DAILY MX	<= 7.4 lb/d	Feb
008	Iron, total [as Fe]	30DA AVG	<= 11 mg/L	all year
008	Iron, total [as Fe]	DAILY MX	<= 11 mg/L	all year
008	Iron, total [as Fe]	30DA AVG	<= 4.5 lb/d	all year
008	Iron, total [as Fe]	DAILY MX	<= 4.5 lb/d	all year
011	pH	DAILY MN	>= 6 SU	all year
011	pH	DAILY MX	<= 9 SU	all year
011	Solids, total suspended	30DA AVG	<= 31 mg/L	all year
011	Solids, total suspended	DAILY MX	<= 60 mg/L	all year
011	Solids, total suspended	30DA AVG	<= 18 lb/d	all year
011	Solids, total suspended	DAILY MX	<= 35.03 lb/d	all year
011	Oil & Grease	30DA AVG	<= 26 mg/L	all year
011	Oil & Grease	DAILY MX	<= 52 mg/L	all year
011	Oil & Grease	30DA AVG	<= 15.18 lb/d	all year
011	Oil & Grease	DAILY MX	<= 30.36 lb/d	all year
011	Nitrogen, total [as N]	30DA AVG	report only	all year
011	Nitrogen, total [as N]	DAILY MX	report only	all year
011	Nitrogen, total [as N]	30DA AVG	report only	all year
011	Nitrogen, total [as N]	DAILY MX	report only	all year
011	Phosphorus, total [as P]	30DA AVG	report only	all year
011	Phosphorus, total [as P]	DAILY MX	report only	all year
011	Phosphorus, total [as P]	30DA AVG	report only	all year
011	Phosphorus, total [as P]	DAILY MX	report only	all year
011	Cyanide, total [as CN]	30DA AVG	<= .46 mg/L	all year
011	Cyanide, total [as CN]	DAILY MX	<= .7 mg/L	all year
011	Cyanide, total [as CN]	30DA AVG	<= .38 lb/d	all year
011	Cyanide, total [as CN]	DAILY MX	<= .7 lb/d	all year
011	Cadmium, total [as Cd]	30DA AVG	<= .26 mg/L	all year
011	Cadmium, total [as Cd]	DAILY MX	<= .69 mg/L	all year
011	Cadmium, total [as Cd]	30DA AVG	<= .15 lb/d	all year
011	Cadmium, total [as Cd]	DAILY MX	<= .4 lb/d	all year
011	Chromium, total [as Cr]	30DA AVG	<= 1.71 mg/L	all year
011	Chromium, total [as Cr]	DAILY MX	<= 2.77 mg/L	all year
011	Chromium, total [as Cr]	30DA AVG	<= 1 lb/d	all year
011	Chromium, total [as Cr]	DAILY MX	<= 1.62 lb/d	all year
011	Copper, total [as Cu]	30DA AVG	<= .54 mg/L	all year
011	Copper, total [as Cu]	DAILY MX	<= .81 mg/L	all year
011	Copper, total [as Cu]	30DA AVG	<= 1.21 lb/d	all year
011	Copper, total [as Cu]	DAILY MX	<= 1.97 lb/d	all year
011	Lead, total [as Pb]	30DA AVG	<= .43 mg/L	all year
011	Lead, total [as Pb]	DAILY MX	<= .69 mg/L	all year
011	Lead, total [as Pb]	30DA AVG	<= .25 lb/d	all year
011	Lead, total [as Pb]	DAILY MX	<= .4 lb/d	all year
011	Nickel, total [as Ni]	30DA AVG	<= 2.38 mg/L	all year
011	Nickel, total [as Ni]	DAILY MX	<= 3.98 mg/L	all year
011	Nickel, total [as Ni]	30DA AVG	<= 1.39 lb/d	all year
011	Nickel, total [as Ni]	DAILY MX	<= 2.32 lb/d	all year
011	Silver, total [as Ag]	30DA AVG	<= .24 mg/L	all year
011	Silver, total [as Ag]	DAILY MX	<= .43 mg/L	all year
011	Silver, total [as Ag]	30DA AVG	<= .14 lb/d	all year
011	Silver, total [as Ag]	DAILY MX	<= .25 lb/d	all year
011	Zinc, total [as Zn]	30DA AVG	<= 1.48 mg/L	all year
011	Zinc, total [as Zn]	DAILY MX	<= 2.61 mg/L	all year
011	Zinc, total [as Zn]	30DA AVG	<= .86 lb/d	all year
011	Zinc, total [as Zn]	DAILY MX	<= 1.52 lb/d	all year
011	Organics, total toxic [TTO]	DAILY MX	<= 2.13 mg/L	all year
011	Organics, total toxic [TTO]	DAILY MX	<= 1.24 lb/d	all year