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NPDES permit IA0001945 · Minor 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

3values over a limit
0required values missing, on 0 form(s)
5of 55 forms filed late

Last period with anything received: 2026-07-31. Most often over: Solids, total suspended (3).

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 (38)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]30DA AVG report only all year
001Oxygen, dissolved [DO]DAILY MX report only all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspended30DA AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 45 mg/L all year
001Solids, total suspended30DA AVG <= 1.5 lb/d all year
001Solids, total suspendedDAILY MX <= 2.3 lb/d all year
001Nitrogen, total [as N]30DA AVG report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, total [as N]30DA AVG report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]30DA AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]30DA AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Chloride [as Cl]30DA AVG <= 389 mg/L all year
001Chloride [as Cl]DAILY MX <= 629 mg/L all year
001Chloride [as Cl]30DA AVG <= 19.4 lb/d all year
001Chloride [as Cl]DAILY MX <= 31.5 lb/d all year
001E. coli30DA AVG report only all year
001E. coliDAILY MX report only all year
001BOD, carbonaceous [5 day, 20 C]30DA AVG <= 25 mg/L all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 40 mg/L all year
001BOD, carbonaceous [5 day, 20 C]30DA AVG <= 1.25 lb/d all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 2 lb/d all year
002pHDAILY MN >= 6.5 SU all year
002pHDAILY MX <= 9 SU all year
002Solids, total suspendedDAILY MX <= 50 mg/L all year
004pHDAILY MN >= 6.5 SU all year
004pHDAILY MX <= 9 SU all year
004Solids, total suspendedDAILY MX <= 50 mg/L all year
007pHDAILY MN >= 6.5 SU all year
007pHDAILY MX <= 9 SU all year
007Solids, total suspendedDAILY MX <= 50 mg/L all year
012pHDAILY MN >= 6.5 SU all year
012pHDAILY MX <= 9 SU all year
012Solids, total suspendedDAILY MX <= 50 mg/L 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