Appleton city of

NPDES permit MN0021890 · Minor POTW · effective, expires 2028-01-31 · EPA's file as of 2026-09-19

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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

4values over a limit
0required values missing, on 0 form(s)
0of 25 forms filed late

Last period with anything received: 2026-08-31. Most often over: Coliform, fecal MPN + membrane ftl 44.5 C (2), Oxygen, dissolved [DO] (2).

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
D018Specific conductanceMO MAX report only Mar, Sep
D018Oxygen, dissolved [DO]MO MIN >= 6 mg/L all year
D018pHMO MIN >= 6 SU all year
D018pHMO MAX <= 9 SU all year
D018Bicarbonate ion- [as HCO3]MO MAX report only Mar, Sep
D018Solids, total suspendedMO AVG <= 30 mg/L all year
D018Solids, total suspendedMO MAX report only Jul
D018Solids, total suspendedMX WK AV <= 45 mg/L all year
D018Solids, total suspendedMO AVG <= 49.9 kg/d all year
D018Solids, total suspendedMX WK AV <= 74.84 kg/d all year
D018Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D018Nitrogen, ammonia total [as N]MO AVG <= 11 mg/L Oct, Nov
D018Nitrogen, ammonia total [as N]MO AVG <= 12 mg/L Jan, Feb, Mar, Dec
D018Nitrogen, ammonia total [as N]MO AVG <= 1.5 mg/L Jun, Jul, Aug, Sep
D018Nitrogen, ammonia total [as N]MO AVG <= 18.13 kg/d Oct, Nov
D018Nitrogen, ammonia total [as N]MO AVG <= 19.96 kg/d Jan, Feb, Mar, Dec
D018Nitrogen, ammonia total [as N]MO AVG <= 2.49 kg/d Jun, Jul, Aug, Sep
D018Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D018Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D018Phosphorus, total [as P]MO AVG report only all year
D018Phosphorus, total [as P]MO AVG report only all year
D018Calcium, total [as Ca]MO MAX report only Mar, Sep
D018Magnesium, total [as Mg]MO MAX report only Mar, Sep
D018Sodium, total [as Na]MO MAX report only Mar, Sep
D018Potassium, total [as K]MO MAX report only Mar, Sep
D018Chloride [as Cl]MO MAX report only Mar, Jun, Sep, Dec
D018Sulfate, total [as SO4]MO MAX report only Mar, Sep
D018Hardness, Ca Mg Calculated [mg/L as CaCO3]MO MAX report only Mar, Sep
D018Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D018Flow, in conduit or thru treatment plantMO AVG report only all year
D018Flow, in conduit or thru treatment plantMO MAX report only all year
D018Flow, in conduit or thru treatment plantMO TOTAL report only all year
D018Chlorine, total residualDAILY MX <= .038 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
D018Solids, total dissolvedMO MAX report only Mar, Sep
D018Mercury, dissolved [as Hg]MO MAX report only Jul
D018Mercury, total [as Hg]MO MAX report only Jul
D018BOD, carbonaceous [5 day, 20 C]MO AVG <= 5 mg/L all year
D018BOD, carbonaceous [5 day, 20 C]MX WK AV <= 10 mg/L all year
D018BOD, carbonaceous [5 day, 20 C]MO AVG <= 8.316 kg/d all year
D018BOD, carbonaceous [5 day, 20 C]MX WK AV <= 16.63 kg/d all year
D018BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
D018Solids, suspended percent removalMO AV MN >= 85 % 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]QRTR AVG report only Mar, Jun, Sep, Dec
S021Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S021Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S021Phosphorus, total [as P]MO AVG report only all year
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