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NPDES permit IA0004014 · Major NON-POTW · effective, expires 2027-01-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

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

0values over a limit
0required values missing, on 0 form(s)
0of 12 forms filed late

Last period with anything received: 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 (60)

OutfallParameterStatisticLimitMonths
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Oil & Grease30DA AVG <= 10 mg/L all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Oil & Grease30DA AVG <= 456 lb/d all year
001Oil & GreaseDAILY MX <= 685 lb/d all year
001Nitrogen, organic total [as N]30DA AVG <= 4441 lb/d all year
001Nitrogen, organic total [as N]DAILY MX <= 8306 lb/d all year
001Nitrogen, ammonia total [as N]30DA AVG <= 166.6 mg/L Feb
001Nitrogen, ammonia total [as N]30DA AVG <= 154.5 mg/L Jan
001Nitrogen, ammonia total [as N]30DA AVG <= 91.8 mg/L Sep
001Nitrogen, ammonia total [as N]30DA AVG <= 91.8 mg/L Oct
001Nitrogen, ammonia total [as N]30DA AVG <= 92.4 mg/L Dec
001Nitrogen, ammonia total [as N]30DA AVG <= 111.3 mg/L May
001Nitrogen, ammonia total [as N]30DA AVG <= 133.5 mg/L Mar
001Nitrogen, ammonia total [as N]30DA AVG <= 93.4 mg/L Apr
001Nitrogen, ammonia total [as N]30DA AVG <= 111.5 mg/L Jul
001Nitrogen, ammonia total [as N]30DA AVG <= 111 mg/L Aug
001Nitrogen, ammonia total [as N]30DA AVG <= 91.6 mg/L Nov
001Nitrogen, ammonia total [as N]30DA AVG <= 111.5 mg/L Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 166.6 mg/L Feb
001Nitrogen, ammonia total [as N]DAILY MX <= 154.5 mg/L Jan
001Nitrogen, ammonia total [as N]DAILY MX <= 91.8 mg/L Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 91.8 mg/L Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 92.4 mg/L Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 111.3 mg/L May
001Nitrogen, ammonia total [as N]DAILY MX <= 133.5 mg/L Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 93.4 mg/L Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 111.5 mg/L Jul
001Nitrogen, ammonia total [as N]DAILY MX <= 111 mg/L Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 91.6 mg/L Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 111.5 mg/L Jun
001Nitrogen, ammonia total [as N]30DA AVG <= 3344 lb/d Feb
001Nitrogen, ammonia total [as N]30DA AVG <= 3344 lb/d Jan
001Nitrogen, ammonia total [as N]30DA AVG <= 3344 lb/d Sep
001Nitrogen, ammonia total [as N]30DA AVG <= 3344 lb/d Oct
001Nitrogen, ammonia total [as N]30DA AVG <= 3344 lb/d Dec
001Nitrogen, ammonia total [as N]30DA AVG <= 3344 lb/d May
001Nitrogen, ammonia total [as N]30DA AVG <= 3344 lb/d Mar
001Nitrogen, ammonia total [as N]30DA AVG <= 3344 lb/d Apr
001Nitrogen, ammonia total [as N]30DA AVG <= 3344 lb/d Jul
001Nitrogen, ammonia total [as N]30DA AVG <= 3344 lb/d Aug
001Nitrogen, ammonia total [as N]30DA AVG <= 3344 lb/d Nov
001Nitrogen, ammonia total [as N]30DA AVG <= 3344 lb/d Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 6587 lb/d Feb
001Nitrogen, ammonia total [as N]DAILY MX <= 6587 lb/d Jan
001Nitrogen, ammonia total [as N]DAILY MX <= 4292 lb/d Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 4292 lb/d Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 4364 lb/d Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 4189 lb/d May
001Nitrogen, ammonia total [as N]DAILY MX <= 6220 lb/d Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 4271 lb/d Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 4497 lb/d Jul
001Nitrogen, ammonia total [as N]DAILY MX <= 3705 lb/d Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 4160 lb/d Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 4189 lb/d Jun
001Nitrogen, nitrate total [as N]30DA AVG <= 206 lb/d all year
001Nitrogen, nitrate total [as N]DAILY MX <= 594 lb/d 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

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