Zumbrota city of

NPDES permit MN0025330 · Major POTW · effective, expires 2028-12-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

14values over a limit
0required values missing, on 0 form(s)
0of 36 forms filed late

Last period with anything received: 2026-08-31. Most often over: Solids, total suspended (11), Solids, suspended percent removal (2), Coliform, fecal MPN + membrane ftl 44.5 C (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 (49)

OutfallParameterStatisticLimitMonths
D019Specific conductanceMO MAX report only all year
D019Oxygen, dissolved [DO]MO MIN report only all year
D019pHMO MIN >= 6 SU all year
D019pHMO MAX <= 9 SU all year
D019Bicarbonate ion- [as HCO3]MO MAX report only all year
D019Solids, total suspendedMO AVG <= 30 mg/L all year
D019Solids, total suspendedMX WK AV <= 45 mg/L all year
D019Solids, total suspendedMO MAX report only May, Sep
D019Solids, total suspendedMO AVG <= 126 kg/d all year
D019Solids, total suspendedMX WK AV <= 189 kg/d all year
D019Nitrogen, total [as N]MO AVG report only all year
D019Nitrogen, ammonia total [as N]MO AVG report only all year
D019Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
D019Nitrite + Nitrate total [as N]MO AVG report only all year
D019Phosphorus, total [as P]MO AVG report only all year
D019Phosphorus, total [as P]MO AVG report only all year
D019Calcium, total [as Ca]MO MAX report only all year
D019Magnesium, total [as Mg]MO MAX report only all year
D019Sodium, total [as Na]MO MAX report only all year
D019Potassium, total [as K]MO MAX report only all year
D019Chloride [as Cl]MO MAX report only all year
D019Sulfate, total [as SO4]MO MAX report only all year
D019Lead, total [as Pb]QB report only Mar, Jun, Sep, Dec
D019Hardness, Ca Mg Calculated [mg/L as CaCO3]MO MAX report only all year
D019Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D019Flow, in conduit or thru treatment plantMO AVG report only all year
D019Flow, in conduit or thru treatment plantMO MAX report only all year
D019Flow, in conduit or thru treatment plantMO TOTAL report only all year
D019Chlorine, total residualDAILY MX <= .038 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
D019Solids, total dissolvedMO MAX report only all year
D019Mercury, dissolved [as Hg]MO MAX report only May, Sep
D019Mercury, total [as Hg]MO MAX report only May, Sep
D019BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
D019BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L all year
D019BOD, carbonaceous [5 day, 20 C]MO AVG <= 105 kg/d all year
D019BOD, carbonaceous [5 day, 20 C]MX WK AV <= 168 kg/d all year
D019BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
D019Solids, suspended percent removalMO AV MN >= 85 % all year
S020Precipitation, total defined period/inMO TOTAL report only all year
S020pHMO MIN report only all year
S020pHMO MAX report only all year
S020Solids, total suspendedMO AVG report only all year
S020Solids, total suspendedMO MAX report only all year
S020Nitrogen, total [as N]MO AVG report only all year
S020Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
S020Nitrite + Nitrate total [as N]MO AVG report only all year
S020Phosphorus, total [as P]MO AVG report only all year
S020BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
S020BOD, 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