WINNEBAGO INDUSTRIES, INC.

NPDES permit IA0067229 · Major NON-POTW · effective, expires 2031-05-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

18values over a limit
0required values missing, on 0 form(s)
0of 33 forms filed late

Last period with anything received: 2026-07-31. Most often over: Aluminum, total [as Al] (10), Zinc, total [as Zn] (4), pH (2).

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 (71)

OutfallParameterStatisticLimitMonths
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspended30DA AVG <= 80 mg/L all year
001Solids, total suspended7 DA AVG <= 120 mg/L all year
001Zinc, total [as Zn]30DA AVG <= .2157 mg/L all year
001Zinc, total [as Zn]DAILY MX <= .2157 mg/L all year
001Zinc, total [as Zn]30DA AVG <= 3.442 lb/d all year
001Zinc, total [as Zn]DAILY MX <= 3.442 lb/d all year
001E. coliGEO MEAN <= 132 #/100mL all year
001Toxicity [acute], Ceriodaphnia dubiaDAILY MX <= 1 N=0;Y=1 all year
001Toxicity [acute], Pimephales promelas [Fathead Minnow]DAILY MX <= 1 N=0;Y=1 all year
001BOD, carbonaceous [5 day, 20 C]30DA AVG <= 25 mg/L all year
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 40 mg/L all year
SUMpHDAILY MN >= 7 SU all year
SUMpHDAILY MN >= 6 SU all year
SUMpHDAILY MX <= 10 SU all year
SUMpHDAILY MX <= 9 SU all year
SUMSolids, total suspended30DA AVG <= 31 mg/L all year
SUMSolids, total suspendedDAILY MX <= 60 mg/L all year
SUMSolids, total suspended30DA AVG <= 3.88 lb/d all year
SUMSolids, total suspended30DA AVG <= 2.235 lb/d all year
SUMSolids, total suspendedDAILY MX <= 7.51 lb/d all year
SUMSolids, total suspendedDAILY MX <= 4.698 lb/d all year
SUMOil & Grease30DA AVG <= 26 mg/L all year
SUMOil & GreaseDAILY MX <= 52 mg/L all year
SUMOil & Grease30DA AVG <= 1.375 lb/d all year
SUMOil & Grease30DA AVG <= 3.25 lb/d all year
SUMOil & GreaseDAILY MX <= 2.292 lb/d all year
SUMOil & GreaseDAILY MX <= 6.5 lb/d all year
SUMCyanide, total [as CN]30DA AVG <= .65 mg/L all year
SUMCyanide, total [as CN]DAILY MX <= 1.2 mg/L all year
SUMCyanide, total [as CN]30DA AVG <= .005 lb/d all year
SUMCyanide, total [as CN]30DA AVG <= .08 lb/d all year
SUMCyanide, total [as CN]DAILY MX <= .012 lb/d all year
SUMCyanide, total [as CN]DAILY MX <= .15 lb/d all year
SUMCadmium, total [as Cd]30DA AVG <= .26 mg/L all year
SUMCadmium, total [as Cd]DAILY MX <= .69 mg/L all year
SUMCadmium, total [as Cd]30DA AVG <= .03 lb/d all year
SUMCadmium, total [as Cd]DAILY MX <= .09 lb/d all year
SUMChromium, total [as Cr]30DA AVG <= 1.71 mg/L all year
SUMChromium, total [as Cr]DAILY MX <= 2.77 mg/L all year
SUMChromium, total [as Cr]30DA AVG <= .007 lb/d all year
SUMChromium, total [as Cr]30DA AVG <= .21 lb/d all year
SUMChromium, total [as Cr]DAILY MX <= .017 lb/d all year
SUMChromium, total [as Cr]DAILY MX <= .35 lb/d all year
SUMCopper, total [as Cu]30DA AVG <= 2.07 mg/L all year
SUMCopper, total [as Cu]DAILY MX <= 3.38 mg/L all year
SUMCopper, total [as Cu]30DA AVG <= .26 lb/d all year
SUMCopper, total [as Cu]DAILY MX <= .42 lb/d all year
SUMLead, total [as Pb]30DA AVG <= .43 mg/L all year
SUMLead, total [as Pb]DAILY MX <= .69 mg/L all year
SUMLead, total [as Pb]30DA AVG <= .05 lb/d all year
SUMLead, total [as Pb]DAILY MX <= .09 lb/d all year
SUMNickel, total [as Ni]30DA AVG <= 2.38 mg/L all year
SUMNickel, total [as Ni]DAILY MX <= 3.98 mg/L all year
SUMNickel, total [as Ni]30DA AVG <= .3 lb/d all year
SUMNickel, total [as Ni]DAILY MX <= .5 lb/d all year
SUMSilver, total [as Ag]30DA AVG <= .24 mg/L all year
SUMSilver, total [as Ag]DAILY MX <= .43 mg/L all year
SUMSilver, total [as Ag]30DA AVG <= .03 lb/d all year
SUMSilver, total [as Ag]DAILY MX <= .05 lb/d all year
SUMZinc, total [as Zn]30DA AVG <= 1.48 mg/L all year
SUMZinc, total [as Zn]DAILY MX <= 2.61 mg/L all year
SUMZinc, total [as Zn]30DA AVG <= .19 lb/d all year
SUMZinc, total [as Zn]30DA AVG <= .024 lb/d all year
SUMZinc, total [as Zn]DAILY MX <= .33 lb/d all year
SUMZinc, total [as Zn]DAILY MX <= .057 lb/d all year
SUMAluminum, total [as Al]30DA AVG <= .129 lb/d all year
SUMAluminum, total [as Al]DAILY MX <= .252 lb/d all year
SUMOrganics, total toxic [TTO]DAILY MX <= 2.13 mg/L all year
SUMOrganics, total toxic [TTO]DAILY MX <= .27 lb/d all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states