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NPDES permit MN0030163 · Major POTW · expired, expires 2026-03-31 · 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 2026-03-31 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 35 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 (53)

OutfallParameterStatisticLimitMonths
D023Oxygen, dissolved [DO]MO MIN report only all year
D023pHMO MIN >= 6 SU all year
D023pHMO MAX <= 9 SU all year
D023Bicarbonate ion- [as HCO3]MO MAX report only Mar, Sep
D023Solids, total suspendedMO AVG report only May, Sep
D023Solids, total suspendedMO AVG <= 30 mg/L all year
D023Solids, total suspendedDAILY MX report only May, Sep
D023Solids, total suspendedMX WK AV <= 45 mg/L all year
D023Solids, total suspendedMO AVG <= 488.3 kg/d all year
D023Solids, total suspendedMX WK AV <= 732.3 kg/d all year
D023Nitrogen, total [as N]MO AVG report only all year
D023Nitrogen, ammonia total [as N]MO AVG report only all year
D023Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
D023Nitrite + Nitrate total [as N]MO AVG report only all year
D023Phosphorus, total [as P]MO AVG <= .07 mg/L all year
D023Phosphorus, total [as P]MO AVG report only all year
D023Phosphorus, total [as P]ANNL TOT <= 279 kg/yr all year
D023Calcium, total [as Ca]MO MAX report only Mar, Sep
D023Magnesium, total [as Mg]MO MAX report only Mar, Sep
D023Sodium, total [as Na]MO MAX report only Mar, Sep
D023Potassium, total [as K]MO MAX report only Mar, Sep
D023Chloride [as Cl]MO MAX report only Mar, Sep
D023Sulfate, total [as SO4]MO MAX report only Mar, Sep
D023Hardness, Ca Mg Calculated [mg/L as CaCO3]MO MAX report only Mar, Sep
D023Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D023Flow, in conduit or thru treatment plantMO AVG report only all year
D023Flow, in conduit or thru treatment plantMO MAX report only all year
D023Flow, in conduit or thru treatment plantMO TOTAL report only all year
D023Solids, total dissolvedMO MAX report only Mar, Sep
D023Mercury, total [as Hg]MO AVG <= 1.8 ng/L May, Sep
D023Mercury, total [as Hg]DAILY MX <= 3.2 ng/L May, Sep
D023Mercury, total [as Hg]MO AVG <= 29.3 mg/d May, Sep
D023Mercury, total [as Hg]DAILY MX <= 52.1 mg/d May, Sep
D023BOD, carbonaceous [5 day, 20 C]MO AVG <= 15 mg/L all year
D023BOD, carbonaceous [5 day, 20 C]MX WK AV <= 25 mg/L all year
D023BOD, carbonaceous [5 day, 20 C]MO AVG <= 244.1 kg/d all year
D023BOD, carbonaceous [5 day, 20 C]MX WK AV <= 406.9 kg/d all year
D023BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
D023Solids, suspended percent removalMO AV MN >= 85 % all year
S024Precipitation, total defined period/inMO TOTAL report only all year
S024pHMO MIN report only all year
S024pHMO MAX report only all year
S024Solids, total suspendedMO AVG report only all year
S024Solids, total suspendedMO MAX report only all year
S024Nitrogen, total [as N]MO AVG report only all year
S024Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
S024Nitrite + Nitrate total [as N]MO AVG report only all year
S024Phosphorus, total [as P]MO AVG report only all year
S024Flow, in conduit or thru treatment plantMO AVG report only all year
S024Flow, in conduit or thru treatment plantMO MAX report only all year
S024Flow, in conduit or thru treatment plantMO TOTAL report only all year
S024BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
S024BOD, 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