CITY OF OSCEOLA

NPDES permit IA0041815 · Major POTW · effective, expires 2029-10-31 · 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

31values over a limit
0required values missing, on 0 form(s)
1of 11 forms filed late

Last period with anything received: 2026-07-31. Most often over: Copper, total [as Cu] (22), Chloride [as Cl] (7), Solids, total suspended (1).

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 (100)

OutfallParameterStatisticLimitMonths
005Oxygen, dissolved [DO]DAILY MN >= 5 mg/L all year
005BOD, 5-day, 20 deg. C30DA AVG report only all year
005BOD, 5-day, 20 deg. CDAILY MX report only all year
005BOD, 5-day, 20 deg. C30DA AVG report only all year
005BOD, 5-day, 20 deg. CDAILY MX report only all year
005pHDAILY MN >= 6.5 SU all year
005pHDAILY MX <= 9 SU all year
005pH30DA AVG report only all year
005pHDAILY MX report only all year
005Solids, total suspended30DA AVG <= 30 mg/L all year
005Solids, total suspended7 DA AVG <= 45 mg/L all year
005Solids, total suspended30DA AVG <= 957 lb/d all year
005Solids, total suspended7 DA AVG <= 1436 lb/d all year
005Solids, total suspended30DA AVG report only all year
005Solids, total suspendedDAILY MX report only all year
005Solids, total suspended30DA AVG report only all year
005Solids, total suspendedDAILY MX report only all year
005Nitrogen, total [as N]30DA AVG report only all year
005Nitrogen, total [as N]DAILY MX report only all year
005Nitrogen, total [as N]30DA AVG report only all year
005Nitrogen, total [as N]DAILY MX report only all year
005Nitrogen, ammonia total [as N]30DA AVG <= 1.5 mg/L Apr
005Nitrogen, ammonia total [as N]30DA AVG <= 4 mg/L Feb
005Nitrogen, ammonia total [as N]30DA AVG <= 1.3 mg/L Jun
005Nitrogen, ammonia total [as N]30DA AVG <= 2.5 mg/L Dec
005Nitrogen, ammonia total [as N]30DA AVG <= 1 mg/L Jul
005Nitrogen, ammonia total [as N]30DA AVG <= 2.3 mg/L Nov
005Nitrogen, ammonia total [as N]30DA AVG <= 3.4 mg/L Jan
005Nitrogen, ammonia total [as N]30DA AVG <= 1.7 mg/L May
005Nitrogen, ammonia total [as N]30DA AVG <= 1 mg/L Aug
005Nitrogen, ammonia total [as N]30DA AVG <= 1.6 mg/L Oct
005Nitrogen, ammonia total [as N]30DA AVG <= 1.1 mg/L Sep
005Nitrogen, ammonia total [as N]30DA AVG <= 3.4 mg/L Mar
005Nitrogen, ammonia total [as N]DAILY MX <= 15.7 mg/L Apr
005Nitrogen, ammonia total [as N]DAILY MX <= 14.2 mg/L Feb
005Nitrogen, ammonia total [as N]DAILY MX <= 14.4 mg/L Jun
005Nitrogen, ammonia total [as N]DAILY MX <= 16 mg/L Dec
005Nitrogen, ammonia total [as N]DAILY MX <= 11.1 mg/L Jul
005Nitrogen, ammonia total [as N]DAILY MX <= 14.7 mg/L Nov
005Nitrogen, ammonia total [as N]DAILY MX <= 15.2 mg/L Jan
005Nitrogen, ammonia total [as N]DAILY MX <= 15.2 mg/L May
005Nitrogen, ammonia total [as N]DAILY MX <= 10.6 mg/L Aug
005Nitrogen, ammonia total [as N]DAILY MX <= 15.7 mg/L Oct
005Nitrogen, ammonia total [as N]DAILY MX <= 13.5 mg/L Sep
005Nitrogen, ammonia total [as N]DAILY MX <= 14.7 mg/L Mar
005Nitrogen, ammonia total [as N]30DA AVG <= 48.6 lb/d Apr
005Nitrogen, ammonia total [as N]30DA AVG <= 126.1 lb/d Feb
005Nitrogen, ammonia total [as N]30DA AVG <= 41.8 lb/d Jun
005Nitrogen, ammonia total [as N]30DA AVG <= 78.9 lb/d Dec
005Nitrogen, ammonia total [as N]30DA AVG <= 32.1 lb/d Jul
005Nitrogen, ammonia total [as N]30DA AVG <= 74 lb/d Nov
005Nitrogen, ammonia total [as N]30DA AVG <= 108.6 lb/d Jan
005Nitrogen, ammonia total [as N]30DA AVG <= 55.5 lb/d May
005Nitrogen, ammonia total [as N]30DA AVG <= 30.4 lb/d Aug
005Nitrogen, ammonia total [as N]30DA AVG <= 49.6 lb/d Oct
005Nitrogen, ammonia total [as N]30DA AVG <= 33.7 lb/d Sep
005Nitrogen, ammonia total [as N]30DA AVG <= 108.6 lb/d Mar
005Nitrogen, ammonia total [as N]DAILY MX <= 500.9 lb/d Apr
005Nitrogen, ammonia total [as N]DAILY MX <= 452.9 lb/d Feb
005Nitrogen, ammonia total [as N]DAILY MX <= 460.7 lb/d Jun
005Nitrogen, ammonia total [as N]DAILY MX <= 509.2 lb/d Dec
005Nitrogen, ammonia total [as N]DAILY MX <= 344.5 lb/d Jul
005Nitrogen, ammonia total [as N]DAILY MX <= 468.5 lb/d Nov
005Nitrogen, ammonia total [as N]DAILY MX <= 484.5 lb/d Jan
005Nitrogen, ammonia total [as N]DAILY MX <= 484.5 lb/d May
005Nitrogen, ammonia total [as N]DAILY MX <= 328.6 lb/d Aug
005Nitrogen, ammonia total [as N]DAILY MX <= 500.9 lb/d Oct
005Nitrogen, ammonia total [as N]DAILY MX <= 417.9 lb/d Sep
005Nitrogen, ammonia total [as N]DAILY MX <= 468.5 lb/d Mar
005Nitrogen, Kjeldahl, total [as N]30DA AVG report only all year
005Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
005Nitrogen, Kjeldahl, total [as N]30DA AVG report only all year
005Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
005Phosphorus, total [as P]30DA AVG report only all year
005Phosphorus, total [as P]DAILY MX report only all year
005Phosphorus, total [as P]30DA AVG report only all year
005Phosphorus, total [as P]DAILY MX report only all year
005Cyanide, total [as CN]30DA AVG <= .0052 mg/L all year
005Cyanide, total [as CN]DAILY MX <= .022 mg/L all year
005Cyanide, total [as CN]30DA AVG <= .1659 lb/d all year
005Cyanide, total [as CN]DAILY MX <= .7018 lb/d all year
005Chloride [as Cl]30DA AVG <= 389 mg/L all year
005Chloride [as Cl]DAILY MX <= 629 mg/L all year
005Chloride [as Cl]30DA AVG <= 12398 lb/d all year
005Chloride [as Cl]DAILY MX <= 20061 lb/d all year
005Chromium, hexavalent [as Cr]30DA AVG <= .01143 mg/L all year
005Chromium, hexavalent [as Cr]DAILY MX <= .01629 mg/L all year
005Chromium, hexavalent [as Cr]30DA AVG <= .3648 lb/d all year
005Chromium, hexavalent [as Cr]DAILY MX <= .5198 lb/d all year
005Copper, total [as Cu]30DA AVG <= .01687 mg/L all year
005Copper, total [as Cu]DAILY MX <= .0269 mg/L all year
005Copper, total [as Cu]30DA AVG <= .5381 lb/d all year
005Copper, total [as Cu]DAILY MX <= .8581 lb/d all year
005E. coliGEO MEAN <= 630 #/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
005BOD, carbonaceous [5 day, 20 C]30DA AVG <= 25 mg/L all year
005BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 40 mg/L all year
005BOD, carbonaceous [5 day, 20 C]30DA AVG <= 798 lb/d all year
005BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 1276 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