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NPDES permit MN0023337 · Minor POTW · effective, expires 2027-02-28 · 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

1values over a limit
0required values missing, on 0 form(s)
0of 26 forms filed late

Last period with anything received: 2026-07-31. Most often over: Phosphorus, total [as P] (1).

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 (54)

OutfallParameterStatisticLimitMonths
D008Specific conductanceMO MAX report only Mar, Sep
D008Oxygen, dissolved [DO]MO MIN report only all year
D008pHMO MIN >= 6 SU all year
D008pHMO MAX <= 9 SU all year
D008Bicarbonate ion- [as HCO3]MO MAX report only Mar, Sep
D008Solids, total suspendedMO AVG report only May, Sep
D008Solids, total suspendedMO AVG <= 30 mg/L all year
D008Solids, total suspendedDAILY MX report only May, Sep
D008Solids, total suspendedMX WK AV <= 45 mg/L all year
D008Solids, total suspendedMO AVG <= 102.1 kg/d all year
D008Solids, total suspendedMX WK AV <= 153.1 kg/d all year
D008Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D008Nitrogen, ammonia total [as N]MO AVG report only Mar, Sep
D008Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D008Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D008Phosphorus, total [as P]MO AVG <= .56 mg/L all year
D008Phosphorus, total [as P]MO AVG report only all year
D008Calcium, total [as Ca]MO MAX report only Mar, Sep
D008Magnesium, total [as Mg]MO MAX report only Mar, Sep
D008Sodium, total [as Na]MO MAX report only Mar, Sep
D008Potassium, total [as K]MO MAX report only Mar, Sep
D008Chloride [as Cl]MO MAX report only Mar, Sep
D008Sulfate, total [as SO4]MO MAX report only Mar, Sep
D008Hardness, Ca Mg Calculated [mg/L as CaCO3]MO MAX report only Mar, Sep
D008Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D008Flow, in conduit or thru treatment plantMO AVG report only all year
D008Flow, in conduit or thru treatment plantMO MAX report only all year
D008Flow, in conduit or thru treatment plantMO TOTAL report only all year
D008Chlorine, total residualDAILY MX <= .038 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
D008Solids, total dissolvedMO MAX report only Mar, Sep
D008Mercury, dissolved [as Hg]MO AVG report only May, Sep
D008Mercury, dissolved [as Hg]DAILY MX report only May, Sep
D008Mercury, total [as Hg]MO AVG report only May, Sep
D008Mercury, total [as Hg]DAILY MX <= 5 ng/L May, Sep
D008BOD, carbonaceous [5 day, 20 C]MO AVG <= 5 mg/L all year
D008BOD, carbonaceous [5 day, 20 C]MX WK AV <= 10 mg/L all year
D008BOD, carbonaceous [5 day, 20 C]MO AVG <= 17 kg/d all year
D008BOD, carbonaceous [5 day, 20 C]MX WK AV <= 34 kg/d all year
D008BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
D008Solids, suspended percent removalMO AV MN >= 85 % all year
S011Precipitation, total defined period/inMO TOTAL report only all year
S011pHMO MIN report only all year
S011pHMO MAX report only all year
S011Solids, total suspendedMO AVG report only May, Sep
S011Solids, total suspendedMO AVG report only all year
S011Solids, total suspendedMO MAX report only all year
S011Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S011Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S011Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S011Phosphorus, total [as P]MO AVG report only all year
S011Mercury, dissolved [as Hg]MO AVG report only May, Sep
S011Mercury, total [as Hg]MO AVG report only May, Sep
S011BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
S011BOD, 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