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NPDES permit IA0052331 · Minor NON-POTW · effective, expires 2031-07-31 · 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)
1of 11 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (83)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheit30DA AVG <= 93.9 deg F Jul
001Temperature, water deg. fahrenheit30DA AVG <= 71.6 deg F Dec
001Temperature, water deg. fahrenheit30DA AVG <= 93.6 deg F Jun
001Temperature, water deg. fahrenheit30DA AVG <= 81.6 deg F Nov
001Temperature, water deg. fahrenheit30DA AVG <= 93.9 deg F Aug
001Temperature, water deg. fahrenheit30DA AVG <= 93.9 deg F Sep
001Temperature, water deg. fahrenheit30DA AVG <= 80.4 deg F Feb
001Temperature, water deg. fahrenheit30DA AVG <= 88.4 deg F May
001Temperature, water deg. fahrenheit30DA AVG <= 88.7 deg F Mar
001Temperature, water deg. fahrenheit30DA AVG <= 92.1 deg F Oct
001Temperature, water deg. fahrenheit30DA AVG <= 70.9 deg F Jan
001Temperature, water deg. fahrenheit30DA AVG <= 84.6 deg F Apr
001Temperature, water deg. fahrenheitDAILY MX <= 93.9 deg F Jul
001Temperature, water deg. fahrenheitDAILY MX <= 93.9 deg F Dec
001Temperature, water deg. fahrenheitDAILY MX <= 93.9 deg F Jun
001Temperature, water deg. fahrenheitDAILY MX <= 93.9 deg F Nov
001Temperature, water deg. fahrenheitDAILY MX <= 93.9 deg F Aug
001Temperature, water deg. fahrenheitDAILY MX <= 93.9 deg F Sep
001Temperature, water deg. fahrenheitDAILY MX <= 93.9 deg F Feb
001Temperature, water deg. fahrenheitDAILY MX <= 93.9 deg F May
001Temperature, water deg. fahrenheitDAILY MX <= 93.9 deg F Mar
001Temperature, water deg. fahrenheitDAILY MX <= 93.9 deg F Oct
001Temperature, water deg. fahrenheitDAILY MX <= 93.9 deg F Jan
001Temperature, water deg. fahrenheitDAILY MX <= 93.9 deg F Apr
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Nitrogen, ammonia total [as N]30DA AVG <= 1.6 mg/L Oct
001Nitrogen, ammonia total [as N]30DA AVG <= 1 mg/L Jul
001Nitrogen, ammonia total [as N]30DA AVG <= 3.4 mg/L Mar
001Nitrogen, ammonia total [as N]30DA AVG <= 1.3 mg/L Jun
001Nitrogen, ammonia total [as N]30DA AVG <= 1.8 mg/L May
001Nitrogen, ammonia total [as N]30DA AVG <= 4 mg/L Feb
001Nitrogen, ammonia total [as N]30DA AVG <= 1.5 mg/L Apr
001Nitrogen, ammonia total [as N]30DA AVG <= 1.1 mg/L Sep
001Nitrogen, ammonia total [as N]30DA AVG <= 2.5 mg/L Dec
001Nitrogen, ammonia total [as N]30DA AVG <= 3.4 mg/L Jan
001Nitrogen, ammonia total [as N]30DA AVG <= 2.3 mg/L Nov
001Nitrogen, ammonia total [as N]30DA AVG <= 1 mg/L Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 5.8 mg/L Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 5.8 mg/L Jul
001Nitrogen, ammonia total [as N]DAILY MX <= 8.5 mg/L Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 5.8 mg/L Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 4.8 mg/L May
001Nitrogen, ammonia total [as N]DAILY MX <= 7 mg/L Feb
001Nitrogen, ammonia total [as N]DAILY MX <= 5.8 mg/L Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 4.8 mg/L Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 7 mg/L Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 10.2 mg/L Jan
001Nitrogen, ammonia total [as N]DAILY MX <= 5.8 mg/L Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 5.8 mg/L Aug
001Nitrogen, ammonia total [as N]30DA AVG <= .8 lb/d Oct
001Nitrogen, ammonia total [as N]30DA AVG <= .6 lb/d Jul
001Nitrogen, ammonia total [as N]30DA AVG <= 1.8 lb/d Mar
001Nitrogen, ammonia total [as N]30DA AVG <= .7 lb/d Jun
001Nitrogen, ammonia total [as N]30DA AVG <= .9 lb/d May
001Nitrogen, ammonia total [as N]30DA AVG <= 2.1 lb/d Feb
001Nitrogen, ammonia total [as N]30DA AVG <= .8 lb/d Apr
001Nitrogen, ammonia total [as N]30DA AVG <= .6 lb/d Sep
001Nitrogen, ammonia total [as N]30DA AVG <= 1.3 lb/d Dec
001Nitrogen, ammonia total [as N]30DA AVG <= 1.8 lb/d Jan
001Nitrogen, ammonia total [as N]30DA AVG <= 1.3 lb/d Nov
001Nitrogen, ammonia total [as N]30DA AVG <= .5 lb/d Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 3.1 lb/d Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 3.2 lb/d Jul
001Nitrogen, ammonia total [as N]DAILY MX <= 4.6 lb/d Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 3.1 lb/d Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 2.6 lb/d May
001Nitrogen, ammonia total [as N]DAILY MX <= 3.7 lb/d Feb
001Nitrogen, ammonia total [as N]DAILY MX <= 3.1 lb/d Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 2.6 lb/d Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 3.8 lb/d Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 5.5 lb/d Jan
001Nitrogen, ammonia total [as N]DAILY MX <= 3.1 lb/d Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 3.1 lb/d Aug
001Nitrogen, nitrate total [as N]DAILY MX <= 9.5 mg/L all year
001Iron, total [as Fe]30DA AVG <= 1 mg/L all year
001Iron, total [as Fe]DAILY MX <= 1 mg/L all year
001Iron, total [as Fe]30DA AVG <= .537 lb/d all year
001Iron, total [as Fe]DAILY MX <= .537 lb/d all year
001Chlorine, total residual30DA AVG <= .011 mg/L all year
001Chlorine, total residualDAILY MX <= .019 mg/L all year
001Chlorine, total residual30DA AVG <= .008 lb/d all year
001Chlorine, total residualDAILY MX <= .014 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