Otsego city of

NPDES permit MN0066257 · Minor POTW · effective, expires 2027-10-31 · 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 34 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 (51)

OutfallParameterStatisticLimitMonths
D006Specific conductanceMO MAX report only all year
D006Oxygen, dissolved [DO]MO MIN report only all year
D006pHMO MIN >= 6 SU all year
D006pHMO MAX <= 9 SU all year
D006Bicarbonate ion- [as HCO3]MO MAX report only all year
D006Solids, total suspendedMO AVG <= 30 mg/L all year
D006Solids, total suspendedMO MAX report only Jul
D006Solids, total suspendedMX WK AV <= 45 mg/L all year
D006Solids, total suspendedMO AVG <= 81.6 kg/d all year
D006Solids, total suspendedMX WK AV <= 122.5 kg/d all year
D006Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D006Nitrogen, ammonia total [as N]MO AVG report only Mar, Sep
D006Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D006Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D006Phosphorus, total [as P]1D <= 1 mg/L all year
D006Phosphorus, total [as P]MO AVG report only all year
D006Phosphorus, total [as P]MO AVG report only all year
D006Phosphorus, total [as P]ANNL TOT <= 1217 kg/yr all year
D006Calcium, total [as Ca]MO MAX report only all year
D006Magnesium, total [as Mg]MO MAX report only all year
D006Sodium, total [as Na]MO MAX report only all year
D006Potassium, total [as K]MO MAX report only all year
D006Chloride [as Cl]MO AVG <= 650 mg/L all year
D006Chloride [as Cl]DAILY MX report only all year
D006Chloride [as Cl]MO AVG report only all year
D006Sulfate, total [as SO4]MO MAX report only all year
D006Hardness, Ca Mg Calculated [mg/L as CaCO3]MO MAX report only all year
D006Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D006Flow, in conduit or thru treatment plantMO AVG report only all year
D006Flow, in conduit or thru treatment plantMO MAX report only all year
D006Flow, in conduit or thru treatment plantMO TOTAL report only all year
D006Solids, total dissolvedMO AVG report only Mar, Sep
D006Mercury, dissolved [as Hg]MO MAX report only Jul
D006Mercury, total [as Hg]MO MAX report only Jul
D006BOD, carbonaceous [5 day, 20 C]MO AVG <= 15 mg/L all year
D006BOD, carbonaceous [5 day, 20 C]MX WK AV <= 25 mg/L all year
D006BOD, carbonaceous [5 day, 20 C]MO AVG <= 40.8 kg/d all year
D006BOD, carbonaceous [5 day, 20 C]MX WK AV <= 68 kg/d all year
D006BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
D006Solids, suspended percent removalMO AV MN >= 85 % all year
S007Precipitation, total defined period/inMO TOTAL report only all year
S007pHMO MIN report only all year
S007pHMO MAX report only all year
S007Solids, total suspendedMO AVG report only all year
S007Solids, total suspendedMO MAX report only all year
S007Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S007Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S007Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S007Phosphorus, total [as P]MO AVG report only all year
S007BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
S007BOD, 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