SIOUXLAND ENERGY COOPERATIVE

NPDES permit IA0076791 · Minor NON-POTW · effective, expires 2031-01-31 · 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

0values over a limit
0required values missing, on 0 form(s)
0of 12 forms filed late

Last period with anything received: 2026-08-31.

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 (19)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L 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 <= 65.05 lb/d all year
001Solids, total suspendedDAILY MX <= 97.58 lb/d all year
001Sulfate, total [as SO4]30DA AVG <= 1514 mg/L all year
001Sulfate, total [as SO4]DAILY MX <= 1514 mg/L all year
001Sulfate, total [as SO4]30DA AVG <= 3434 lb/d all year
001Sulfate, total [as SO4]DAILY MX <= 3434 lb/d 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 <= 2.27 lb/d all year
001Iron, total [as Fe]DAILY MX <= 2.27 lb/d all year
001Chlorine, total residual30DA AVG <= .022 mg/L all year
001Chlorine, total residualDAILY MX <= .038 mg/L all year
001Chlorine, total residual30DA AVG <= .048 lb/d all year
001Chlorine, total residualDAILY MX <= .084 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