Cannon Falls city of

NPDES permit MN0022993 · Minor POTW · effective, expires 2029-04-30 · 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

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 (47)

OutfallParameterStatisticLimitMonths
D051Oxygen, dissolved [DO]MO MIN report only all year
D051pHMO MIN >= 6 SU all year
D051pHMO MAX <= 9 SU all year
D051Solids, total suspendedMO AVG <= 30 mg/L all year
D051Solids, total suspendedMX WK AV <= 45 mg/L all year
D051Solids, total suspendedMO MAX report only Jul
D051Solids, total suspendedMO AVG <= 60 kg/d all year
D051Solids, total suspendedMX WK AV <= 89 kg/d all year
D051Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D051Nitrogen, ammonia total [as N]MO AVG report only Mar, Sep
D051Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D051Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D051Phosphorus, total [as P]MO AVG report only all year
D051Phosphorus, total [as P]1D <= 1 mg/L all year
D051Phosphorus, total [as P]MO AVG report only all year
D051Phosphorus, total [as P]ANNL TOT <= 1271 kg/yr all year
D051Sulfate, total [as SO4]MO MAX report only all year
D051Nickel, total [as Ni]QRTR AVG report only Mar, Jun, Sep, Dec
D051Zinc, total [as Zn]QRTR AVG report only Mar, Jun, Sep, Dec
D051Hardness, Ca Mg Calculated [mg/L as CaCO3]QB report only Mar, Jun, Sep, Dec
D051Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D051Flow, in conduit or thru treatment plantMO AVG report only all year
D051Flow, in conduit or thru treatment plantMO MAX report only all year
D051Flow, in conduit or thru treatment plantMO TOTAL report only all year
D051Solids, total dissolvedMO AVG report only Apr, Sep
D051Mercury, dissolved [as Hg]MO MAX report only Jul
D051Mercury, total [as Hg]MO MAX report only Jul
D051BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
D051BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L all year
D051BOD, carbonaceous [5 day, 20 C]MO AVG <= 50 kg/d all year
D051BOD, carbonaceous [5 day, 20 C]MX WK AV <= 79 kg/d all year
D051BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
D051Solids, suspended percent removalMO AV MN >= 85 % all year
S052Precipitation, total defined period/inMO TOTAL report only all year
S052pHMO MIN report only all year
S052pHMO MAX report only all year
S052Solids, total suspendedMO AVG report only all year
S052Solids, total suspendedMO MAX report only all year
S052Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S052Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S052Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S052Phosphorus, total [as P]MO AVG report only all year
S052Flow, in conduit or thru treatment plantMO AVG report only all year
S052Flow, in conduit or thru treatment plantMO MAX report only all year
S052Flow, in conduit or thru treatment plantMO TOTAL report only all year
S052BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
S052BOD, 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