Otsego city of

NPDES permit MN0064190 · Major POTW · effective, expires 2031-07-31 · 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.

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

0values over a limit
0required values missing, on 0 form(s)
0of 51 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 (60)

OutfallParameterStatisticLimitMonths
D023Oxygen, dissolved [DO]MO MIN >= 6 mg/L Jan, Feb, Mar, Dec
D023Oxygen, dissolved [DO]MO MIN report only Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
D023pHMO MIN >= 6 SU all year
D023pHMO MAX <= 9 SU all year
D023Solids, total suspendedMO AVG <= 30 mg/L all year
D023Solids, total suspendedMX WK AV <= 45 mg/L all year
D023Solids, total suspendedMO MAX report only Jan, Mar, May, Jul, Sep, Nov
D023Solids, total suspendedMO AVG <= 125 kg/d all year
D023Solids, total suspendedMX WK AV <= 187 kg/d all year
D023Nitrogen, total [as N]MO AVG report only all year
D023Nitrogen, ammonia total [as N]MO AVG <= 5 mg/L Jan, Feb, Mar, Dec
D023Nitrogen, ammonia total [as N]MO AVG <= 14 mg/L Oct, Nov
D023Nitrogen, ammonia total [as N]MO AVG <= 9.9 mg/L Jun, Jul, Aug, Sep
D023Nitrogen, ammonia total [as N]MO AVG report only Apr, May
D023Nitrogen, ammonia total [as N]MO AVG <= 21 kg/d Jan, Feb, Mar, Dec
D023Nitrogen, ammonia total [as N]MO AVG <= 58 kg/d Oct, Nov
D023Nitrogen, ammonia total [as N]MO AVG <= 41 kg/d Jun, Jul, Aug, Sep
D023Nitrogen, ammonia total [as N]MO AVG report only Apr, May
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]1D <= 1 mg/L all year
D023Phosphorus, total [as P]MO AVG report only Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
D023Phosphorus, total [as P]MO AVG report only Jun, Jul, Aug, Sep
D023Phosphorus, total [as P]MO AVG report only Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
D023Phosphorus, total [as P]MO AVG <= 3.5 kg/d Jun, Jul, Aug, Sep
D023Phosphorus, total [as P]ANNL TOT <= 2114 kg/yr all year
D023Sulfate, total [as SO4]MO MAX report only Mar, Jun, Sep, Dec
D023Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL all year
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 AVG report only Mar, Sep
D023Mercury, dissolved [as Hg]MO MAX report only Jan, Mar, May, Jul, Sep, Nov
D023Mercury, total [as Hg]MO AVG <= 10 ng/L Jan, Mar, May, Jul, Sep, Nov
D023Mercury, total [as Hg]DAILY MX <= 17 ng/L Jan, Mar, May, Jul, Sep, Nov
D023BOD, carbonaceous [5 day, 20 C]MO AVG <= 15 mg/L Jan, Feb, Mar, Dec
D023BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
D023BOD, carbonaceous [5 day, 20 C]MX WK AV <= 25 mg/L Jan, Feb, Mar, Dec
D023BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
D023BOD, carbonaceous [5 day, 20 C]MO AVG <= 62 kg/d Jan, Feb, Mar, Dec
D023BOD, carbonaceous [5 day, 20 C]MO AVG <= 104 kg/d Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
D023BOD, carbonaceous [5 day, 20 C]MX WK AV <= 104 kg/d Jan, Feb, Mar, Dec
D023BOD, carbonaceous [5 day, 20 C]MX WK AV <= 166 kg/d Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
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
S024Mercury, total [as Hg]MO MAX report only Jan, Mar, May, Jul, Sep, Nov
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