Wisconsin Central Limited

NPDES permit MN0049018 · Minor NON-POTW · administratively continued, expires 2025-01-31 · 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.

This permit expired on 2025-01-31 and is administratively continued: 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 11 forms filed late

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

Reporting

Reports are due about 21 days after each monitoring period ends (the most common figure among MN permits in EPA's filings — check your permit).

Limits in force (15)

OutfallParameterStatisticLimitMonths
D001pHINST MIN >= 6 SU all year
D001pHINST MAX <= 9 SU all year
D001Solids, total suspendedMO AVG <= 30 mg/L all year
D001Solids, total suspendedMO MAX report only all year
D001Nitrogen, total [as N]MO AVG report only Mar, Sep
D001Nitrogen, ammonia total [as N]MO AVG report only Mar, Sep
D001Nitrogen, Kjeldahl, total [as N]MO AVG report only Mar, Sep
D001Nitrite + Nitrate total [as N]MO AVG report only Mar, Sep
D001Iron, total [as Fe]MO AVG <= 1 mg/L all year
D001Iron, total [as Fe]DAILY MX <= 2 mg/L all year
D001Diesel range organics diesel, total, wtrDAILY MX <= 5500 ug/L all year
D001Flow, in conduit or thru treatment plantMO AVG report only all year
D001Flow, in conduit or thru treatment plantDAILY MX report only all year
D001Flow, in conduit or thru treatment plantMO TOTAL report only all year
D001Solids, total dissolvedMO AVG report only Mar, Sep

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