ISD 363

NPDES permit MN0049263 · Minor POTW · effective, expires 2027-09-30 · 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
192required values missing, on 18 form(s)
3of 27 forms filed late

Last period with anything received: 2025-11-30.

Reporting

Reports are due about 47 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (43)

OutfallParameterStatisticLimitMonths
D002Specific conductanceQB report only Mar, Jun, Sep, Dec
D002Oxygen, dissolved [DO]MO MIN report only all year
D002pHMO MIN >= 6 SU all year
D002pHMO MAX <= 9 SU all year
D002Bicarbonate ion- [as HCO3]QB report only Mar, Jun, Sep, Dec
D002Solids, total suspendedMO AVG <= 30 mg/L all year
D002Solids, total suspendedMX WK AV <= 45 mg/L all year
D002Solids, total suspendedMO AVG <= .81 kg/d all year
D002Solids, total suspendedMX WK AV <= 1.2 kg/d all year
D002Nitrogen, total [as N]MO AVG report only Mar, Sep
D002Nitrogen, Kjeldahl, total [as N]MO AVG report only Mar, Sep
D002Nitrite + Nitrate total [as N]MO AVG report only Mar, Sep
D002Phosphorus, total [as P]MO AVG report only all year
D002Phosphorus, total [as P]MO AVG report only all year
D002Phosphorus, total [as P]YA <= 34 kg/yr all year
D002Calcium, total [as Ca]QB report only Mar, Jun, Sep, Dec
D002Magnesium, total [as Mg]QB report only Mar, Jun, Sep, Dec
D002Sodium, total [as Na]QB report only Mar, Jun, Sep, Dec
D002Potassium, dissolved [as K]QB report only Mar, Jun, Sep, Dec
D002Chloride [as Cl]DAILY MX <= 5751 mg/L all year
D002Hardness, Ca Mg Calculated [mg/L as CaCO3]QB report only Mar, Jun, Sep, Dec
D002Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D002Flow, in conduit or thru treatment plantMO AVG report only all year
D002Flow, in conduit or thru treatment plantMO MAX report only all year
D002Flow, in conduit or thru treatment plantMO TOTAL report only all year
D002Solids, total dissolvedQB report only Mar, Jun, Sep, Dec
D002BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
D002BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L all year
D002BOD, carbonaceous [5 day, 20 C]MO AVG <= .67 kg/d all year
D002BOD, carbonaceous [5 day, 20 C]MX WK AV <= 1.1 kg/d all year
D002BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
D002Solids, suspended percent removalMO AV MN >= 85 % all year
S003Precipitation, total defined period/inMO TOTAL report only all year
S003pHMO MIN report only all year
S003pHMO MAX report only all year
S003Solids, total suspendedMO AVG report only all year
S003Solids, total suspendedMO MAX report only all year
S003Nitrogen, total [as N]MO AVG report only Mar, Sep
S003Nitrogen, Kjeldahl, total [as N]MO AVG report only Mar, Sep
S003Nitrite + Nitrate total [as N]MO AVG report only Mar, Sep
S003Phosphorus, total [as P]MO AVG report only all year
S003BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
S003BOD, 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