Kerkhoven city of

NPDES permit MN0020583 · Minor POTW · effective, expires 2029-09-30 · 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

18values over a limit
32required values missing, on 9 form(s)
0of 33 forms filed late

Last period with anything received: 2026-07-31. Most often over: Solids, suspended percent removal (8), BOD, carbonaceous [5 day, 20 C] (5), BOD, carb-5 day, 20 deg C, percent removal (3).

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 (48)

OutfallParameterStatisticLimitMonths
D007Specific conductanceMO MAX report only all year
D007Oxygen, dissolved [DO]MO MIN report only all year
D007pHMO MIN >= 6 SU all year
D007pHMO MAX <= 9 SU all year
D007Bicarbonate ion- [as HCO3]MO MAX report only all year
D007Solids, total suspendedMO AVG <= 30 mg/L all year
D007Solids, total suspendedMX WK AV <= 45 mg/L all year
D007Solids, total suspendedMO AVG <= 17 kg/d all year
D007Solids, total suspendedMX WK AV <= 25.5 kg/d all year
D007Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D007Nitrogen, ammonia total [as N]MO AVG report only Mar, Sep
D007Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D007Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D007Phosphorus, total [as P]MO AVG report only Jun, Jul, Aug, Sep
D007Phosphorus, total [as P]MO AVG report only Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
D007Phosphorus, total [as P]MO AVG <= 2.1 kg/d Jun, Jul, Aug, Sep
D007Phosphorus, total [as P]MO AVG report only Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
D007Phosphorus, total [as P]ANNL TOT <= 725 kg/yr all year
D007Calcium, total [as Ca]MO MAX report only all year
D007Magnesium, total [as Mg]MO MAX report only all year
D007Sodium, total [as Na]MO MAX report only all year
D007Potassium, total [as K]MO MAX report only all year
D007Chloride [as Cl]MO AVG <= 468 mg/L Jan, Mar, May, Jul, Sep, Nov
D007Sulfate, total [as SO4]MO MAX report only all year
D007Hardness, Ca Mg Calculated [mg/L as CaCO3]MO MAX report only all year
D007Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL May, Jun, Jul, Aug, Sep, Oct
D007Flow, in conduit or thru treatment plantMO AVG report only all year
D007Flow, in conduit or thru treatment plantMO MAX report only all year
D007Flow, in conduit or thru treatment plantMO TOTAL report only all year
D007Chlorine, total residualDAILY MX report only May, Jun, Jul, Aug, Sep, Oct
D007Solids, total dissolvedMO MAX report only all year
D007BOD, carbonaceous [5 day, 20 C]MO AVG <= 15 mg/L all year
D007BOD, carbonaceous [5 day, 20 C]MX WK AV <= 25 mg/L all year
D007BOD, carbonaceous [5 day, 20 C]MO AVG <= 8.5 kg/d all year
D007BOD, carbonaceous [5 day, 20 C]MX WK AV <= 14.2 kg/d all year
D007BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
D007Solids, suspended percent removalMO AV MN >= 85 % all year
S009Precipitation, total defined period/inMO TOTAL report only all year
S009pHMO MIN report only all year
S009pHMO MAX report only all year
S009Solids, total suspendedMO AVG report only all year
S009Solids, total suspendedMO MAX report only all year
S009Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S009Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S009Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S009Phosphorus, total [as P]MO AVG report only all year
S009BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
S009BOD, 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