CITY OF GILMAN

NPDES permit IA0029033 · Minor POTW · effective, expires 2027-11-30 · 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 11 forms filed late

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

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 (28)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. C30DA AVG report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001BOD, 5-day, 20 deg. C30DA AVG report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001pH30DA AVG report only all year
001pHDAILY MX report only all year
001Solids, total suspended30DA AVG <= 80 mg/L all year
001Solids, total suspended7 DA AVG <= 120 mg/L all year
001Solids, total suspended30DA AVG <= 299 lb/d all year
001Solids, total suspended7 DA AVG <= 449 lb/d all year
001Solids, total suspended30DA AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspended30DA AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Nitrogen, ammonia total [as N]30DA AVG <= 8.7 mg/L Jul
001Nitrogen, ammonia total [as N]30DA AVG <= 8.7 mg/L Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 13 mg/L Jul
001Nitrogen, ammonia total [as N]DAILY MX <= 13 mg/L Aug
001Nitrogen, ammonia total [as N]30DA AVG <= 32.8 lb/d Jul
001Nitrogen, ammonia total [as N]30DA AVG <= 32.8 lb/d Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 48.6 lb/d Jul
001Nitrogen, ammonia total [as N]DAILY MX <= 48.6 lb/d Aug
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
001BOD, carbonaceous [5 day, 20 C]30DA AVG <= 93 lb/d all year
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 150 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