Little Falls city of

NPDES permit MN0020761 · Major POTW · effective, expires 2027-11-30 · 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.

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

0values over a limit
0required values missing, on 0 form(s)
0of 38 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 (42)

OutfallParameterStatisticLimitMonths
D025Oxygen, dissolved [DO]MO MIN report only all year
D025pHMO MIN >= 6 SU all year
D025pHMO MAX <= 9 SU all year
D025Solids, total suspendedMO AVG <= 30 mg/L all year
D025Solids, total suspendedMO MAX report only May, Sep
D025Solids, total suspendedMX WK AV <= 45 mg/L all year
D025Solids, total suspendedMO AVG <= 272 kg/d all year
D025Solids, total suspendedMX WK AV <= 408 kg/d all year
D025Nitrogen, total [as N]MO AVG report only all year
D025Nitrogen, ammonia total [as N]MO AVG report only all year
D025Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
D025Nitrite + Nitrate total [as N]MO AVG report only all year
D025Phosphorus, total [as P]MO AVG report only all year
D025Phosphorus, total [as P]MO AVG report only all year
D025Phosphorus, total [as P]ANNL TOT <= 2653 kg/yr all year
D025Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D025Flow, in conduit or thru treatment plantMO AVG report only all year
D025Flow, in conduit or thru treatment plantMO MAX report only all year
D025Flow, in conduit or thru treatment plantMO TOTAL report only all year
D025Solids, total dissolvedMO AVG report only Mar, Sep
D025Mercury, dissolved [as Hg]MO MAX report only May, Sep
D025Mercury, total [as Hg]MO MAX report only May, Sep
D025BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
D025BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L all year
D025BOD, carbonaceous [5 day, 20 C]MO AVG <= 227 kg/d all year
D025BOD, carbonaceous [5 day, 20 C]MX WK AV <= 363 kg/d all year
D025BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
D025Solids, suspended percent removalMO AV MN >= 85 % all year
S026Precipitation, total defined period/inMO TOTAL report only all year
S026pHMO MIN report only all year
S026pHMO MAX report only all year
S026Solids, total suspendedMO AVG report only all year
S026Solids, total suspendedMO MAX report only all year
S026Nitrogen, total [as N]MO AVG report only all year
S026Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
S026Nitrite + Nitrate total [as N]MO AVG report only all year
S026Phosphorus, total [as P]MO AVG report only all year
S026Flow, in conduit or thru treatment plantMO AVG report only all year
S026Flow, in conduit or thru treatment plantMO MAX report only all year
S026Flow, in conduit or thru treatment plantMO TOTAL report only all year
S026BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
S026BOD, carbonaceous [5 day, 20 C]MO MAX 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