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NPDES permit IA0052166 · Major NON-POTW · administratively continued, expires 2026-02-28 · 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.

This permit expired on 2026-02-28 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

2values 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: Toxicity [acute], Ceriodaphnia dubia (1), pH (1).

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 (25)

OutfallParameterStatisticLimitMonths
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Nitrogen, organic total [as N]30DA AVG <= 1889 lb/d all year
001Nitrogen, organic total [as N]DAILY MX <= 3539 lb/d all year
001Nitrogen, ammonia total [as N]30DA AVG <= 2266 lb/d all year
001Nitrogen, ammonia total [as N]DAILY MX <= 4477 lb/d all year
001Nitrogen, nitrate total [as N]30DA AVG <= 359 lb/d all year
001Nitrogen, nitrate total [as N]DAILY MX <= 1037 lb/d all year
002pHDAILY MN >= 6 SU all year
002pHDAILY MX <= 9 SU all year
002Solids, total suspended30DA AVG <= 30 mg/L all year
002Solids, total suspended7 DA AVG <= 45 mg/L all year
002Solids, total suspended30DA AVG <= 1 lb/d all year
002Solids, total suspended7 DA AVG <= 1 lb/d all year
002BOD, carbonaceous [5 day, 20 C]30DA AVG <= 25 mg/L all year
002BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 40 mg/L all year
002BOD, carbonaceous [5 day, 20 C]30DA AVG <= 1 lb/d all year
002BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 1 lb/d all year
005Chlorine, total residual30DA AVG <= 1.66 mg/L all year
005Chlorine, total residualDAILY MX <= 1.66 mg/L all year
005Chlorine, total residual30DA AVG <= 29.45 lb/d all year
005Chlorine, total residualDAILY MX <= 29.45 lb/d all year
005E. coliGEO MEAN <= 130 #/100mL Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
005Toxicity [acute], Ceriodaphnia dubiaDAILY MX <= 1 N=0;Y=1 all year
005Toxicity [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