Kasson city of

NPDES permit MN0050725 · Major POTW · effective, expires 2028-12-31 · 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 (67)

OutfallParameterStatisticLimitMonths
D016Specific conductanceMO MAX report only Mar, Sep
D016Oxygen, dissolved [DO]MO MIN >= 6 mg/L Jan, Feb, Mar, Jun, Jul, Aug, Sep, Oct, Nov, Dec
D016Oxygen, dissolved [DO]MO MIN report only Apr, May
D016pHMO MIN >= 6 SU all year
D016pHMO MAX <= 9 SU all year
D016Bicarbonate ion- [as HCO3]MO MAX report only Mar, Sep
D016Solids, total suspendedMO AVG <= 30 mg/L all year
D016Solids, total suspendedMO MAX report only Jan, Mar, May, Jul, Sep, Nov
D016Solids, total suspendedMX WK AV <= 45 mg/L all year
D016Solids, total suspendedMO AVG <= 234.7 kg/d all year
D016Solids, total suspendedMX WK AV <= 352.1 kg/d all year
D016Nitrogen, total [as N]MO AVG report only all year
D016Nitrogen, ammonia total [as N]MO AVG <= 17.2 mL/L Apr, May
D016Nitrogen, ammonia total [as N]MO AVG <= 13.1 mg/L Oct, Nov
D016Nitrogen, ammonia total [as N]MO AVG <= 5 mg/L Jan, Feb, Mar, Dec
D016Nitrogen, ammonia total [as N]MO AVG <= 2.3 mg/L Jun, Jul, Aug, Sep
D016Nitrogen, ammonia total [as N]MO MAX <= 134.8 mL/L Apr, May
D016Nitrogen, ammonia total [as N]MO MAX <= 102.6 mg/L Oct, Nov
D016Nitrogen, ammonia total [as N]MO MAX <= 39.2 mg/L Jan, Feb, Mar, Dec
D016Nitrogen, ammonia total [as N]MO MAX <= 18 mg/L Jun, Jul, Aug, Sep
D016Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
D016Nitrite + Nitrate total [as N]MO AVG report only all year
D016Phosphorus, total [as P]MO AVG report only Jun, Jul, Aug, Sep
D016Phosphorus, total [as P]MO AVG report only Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
D016Phosphorus, total [as P]1D <= 1 mg/L all year
D016Phosphorus, total [as P]MO AVG <= 4.4 kg/d Jun, Jul, Aug, Sep
D016Phosphorus, total [as P]MO AVG report only Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
D016Phosphorus, total [as P]ANNL TOT <= 1658 kg/yr all year
D016Calcium, total [as Ca]MO MAX report only Mar, Sep
D016Magnesium, total [as Mg]MO MAX report only Mar, Sep
D016Sodium, total [as Na]MO MAX report only Mar, Sep
D016Potassium, total [as K]MO MAX report only Mar, Sep
D016Chloride [as Cl]MO MAX report only Mar, Sep
D016Sulfate, total [as SO4]MO MAX report only Mar, Sep
D016Hardness, Ca Mg Calculated [mg/L as CaCO3]MO MAX report only Mar, Sep
D016Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D016Flow, in conduit or thru treatment plantMO AVG report only all year
D016Flow, in conduit or thru treatment plantMO MAX report only all year
D016Flow, in conduit or thru treatment plantMO TOTAL report only all year
D016Solids, total dissolvedMO MAX report only Mar, Sep
D016Mercury, dissolved [as Hg]MO AVG report only Jan, Mar, May, Jul, Sep, Nov
D016Mercury, dissolved [as Hg]MO MAX report only Jan, Mar, May, Jul, Sep, Nov
D016Mercury, total [as Hg]MO AVG <= 9.7 ng/L Jan, Mar, May, Jul, Sep, Nov
D016Mercury, total [as Hg]MO MAX <= 16.8 ng/L Jan, Mar, May, Jul, Sep, Nov
D016BOD, carbonaceous [5 day, 20 C]MO AVG <= 15 mg/L all year
D016BOD, carbonaceous [5 day, 20 C]MX WK AV <= 25 mg/L all year
D016BOD, carbonaceous [5 day, 20 C]MO AVG <= 117.4 kg/d all year
D016BOD, carbonaceous [5 day, 20 C]MX WK AV <= 195.6 kg/d all year
D016BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
D016Solids, suspended percent removalMO AV MN >= 85 % all year
D022Solids, total suspendedANNL AVG report only all year
D022BOD, carbonaceous [5 day, 20 C]ANNL AVG report only all year
S021Precipitation, total defined period/inMO TOTAL report only all year
S021pHMO MIN report only all year
S021pHMO MAX report only all year
S021Solids, total suspendedMO AVG report only all year
S021Solids, total suspendedMO MAX report only all year
S021Nitrogen, total [as N]MO AVG report only all year
S021Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
S021Nitrite + Nitrate total [as N]MO AVG report only all year
S021Phosphorus, total [as P]MO AVG report only all year
S021Flow, in conduit or thru treatment plantMO AVG report only all year
S021Flow, in conduit or thru treatment plantMO MAX report only all year
S021Flow, in conduit or thru treatment plantMO TOTAL report only all year
S021Mercury, total [as Hg]MO AVG report only Jan, Mar, May, Jul, Sep, Nov
S021BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
S021BOD, 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