Little Falls city of

NPDES permit MN0003182 · Minor 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

0values over a limit
0required values missing, on 0 form(s)
0of 24 forms filed late

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

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 (17)

OutfallParameterStatisticLimitMonths
D001TurbidityQB <= 25 NTU Mar, Jun, Sep, Dec
D001pHQC >= 6 SU Mar, Jun, Sep, Dec
D001pHQB <= 9 SU Mar, Jun, Sep, Dec
D001Solids, total suspendedQB <= 30 mg/L Mar, Jun, Sep, Dec
D001Nitrogen, 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
D001Phosphorus, total [as P]MO AVG report only all year
D001Phosphorus, total [as P]MO AVG report only all year
D001Phosphorus, total [as P]ANNL TOT <= 2 kg/yr all year
D001Iron, total [as Fe]QB <= 2 mg/L Mar, Jun, Sep, Dec
D001Manganese, total [as Mn]QB report only Mar, Jun, Sep, Dec
D001Aluminum, total [as Al]QB <= 2 mg/L Mar, Jun, Sep, Dec
D001Flow, in conduit or thru treatment plantMO AVG report only all year
D001Flow, in conduit or thru treatment plantMO MAX report only all year
D001Flow, in conduit or thru treatment plantMO TOTAL report only all year
D001Chlorine, total residualQB <= .2 mg/L Mar, Jun, Sep, Dec

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