Didion Milling Inc Ethanol Plant

NPDES permit WI0066401 · Minor NON-POTW · expired, expires 2023-12-31 · 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.

This permit expired on 2023-12-31 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

EPA's record, 2025-09-01 to 2026-08-31

1values over a limit
14required values missing, on 4 form(s)
6of 20 forms filed late

Last period with anything received: 2026-06-30. Most often over: 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 (24)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitDAILY MX <= 86 deg F all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 40 mg/L all year
001Solids, total suspendedDAILY MX <= 40 mg/L all year
001Hardness, total [as CaCO3]DAILY MX report only Jun, Dec
001Arsenic, total recoverableDAILY MX report only Jun, Dec
001Zinc, total recoverableDAILY MX report only Dec
001Lead, total recoverableDAILY MX report only Dec
001Copper, total recoverableDAILY MX report only Dec
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
002Temperature, water deg. fahrenheitDAILY MX <= 86 deg F all year
002pHDAILY MN >= 6 SU all year
002pHDAILY MX <= 9 SU all year
002Solids, total suspendedMO AVG <= 40 mg/L all year
002Solids, total suspendedDAILY MX <= 40 mg/L all year
002Hardness, total [as CaCO3]DAILY MX report only Jun, Dec
002Arsenic, total recoverableDAILY MX report only Jun, Dec
002Zinc, total recoverableDAILY MX report only Dec
002Lead, total recoverableDAILY MX report only Dec
002Copper, total recoverableDAILY MX report only Dec
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only 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