General Mitchell International Airport

NPDES permit WI0046477 · Minor NON-POTW · expired, expires 2019-09-30 · 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.

This permit expired on 2019-09-30 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

0values over a limit
0required values missing, on 0 form(s)
0of 29 forms filed late

Last period with anything received: 2026-06-30.

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among WI permits in EPA's filings — check your permit).

Limits in force (55)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001Oxygen demand, chem. [COD], dissolvedDAILY MX report only all year
001pHDAILY MX report only all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Oil and grease, hexane extr methodDAILY MX report only all year
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
003BOD, 5-day, 20 deg. CMO AVG report only all year
003BOD, 5-day, 20 deg. CDAILY MX report only all year
003Oxygen demand, chem. [COD], dissolvedDAILY MX report only all year
003pHDAILY MX report only all year
003Solids, total suspendedMO AVG report only all year
003Solids, total suspendedDAILY MX report only all year
003Oil and grease, hexane extr methodDAILY MX report only all year
003Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
003Phosphorus, total [as P]DAILY MX report only all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
007BOD, 5-day, 20 deg. CMO AVG report only all year
007BOD, 5-day, 20 deg. CDAILY MX report only all year
007Oxygen demand, chem. [COD], dissolvedDAILY MX report only all year
007pHDAILY MX report only all year
007Solids, total suspendedMO AVG report only all year
007Solids, total suspendedDAILY MX report only all year
007Oil and grease, hexane extr methodDAILY MX report only all year
007Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
007Phosphorus, total [as P]DAILY MX report only all year
007Flow, in conduit or thru treatment plantMO AVG report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
601BOD, 5-day, 20 deg. CMO AVG report only all year
601BOD, 5-day, 20 deg. CDAILY MX report only all year
601Oxygen demand, chem. [COD], dissolvedDAILY MX report only all year
601pHDAILY MX report only all year
601Solids, total suspendedMO AVG report only all year
601Solids, total suspendedDAILY MX report only all year
601Oil and grease, hexane extr methodDAILY MX report only all year
601Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
601Phosphorus, total [as P]DAILY MX report only all year
601Flow, in conduit or thru treatment plantMO AVG report only all year
601Flow, in conduit or thru treatment plantDAILY MX report only all year
701BOD, 5-day, 20 deg. CMO AVG report only all year
701BOD, 5-day, 20 deg. CDAILY MX report only all year
701Oxygen demand, chem. [COD], dissolvedDAILY MX report only all year
701pHDAILY MX report only all year
701Solids, total suspendedMO AVG report only all year
701Solids, total suspendedDAILY MX report only all year
701Oil and grease, hexane extr methodDAILY MX report only all year
701Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
701Phosphorus, total [as P]DAILY MX report only all year
701Flow, in conduit or thru treatment plantMO AVG report only all year
701Flow, 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