Sauk Centre Public Utilities

NPDES permit MN0024821 · Minor POTW · effective, expires 2028-02-29 · 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 37 forms filed late

Last period with anything received: 2026-08-31.

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 (55)

OutfallParameterStatisticLimitMonths
D036Specific conductanceMO MAX report only all year
D036Oxygen, dissolved [DO]MO MIN >= 4 mg/L all year
D036pHMO MIN >= 6 SU all year
D036pHMO MAX <= 9 SU all year
D036Bicarbonate ion- [as HCO3]MO MAX report only all year
D036Solids, total suspendedMO AVG <= 30 mg/L all year
D036Solids, total suspendedMX WK AV <= 45 mg/L all year
D036Solids, total suspendedMO MAX report only Jul
D036Solids, total suspendedMO AVG <= 100.7 kg/d all year
D036Solids, total suspendedMX WK AV <= 151 kg/d all year
D036Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D036Nitrogen, ammonia total [as N]MO AVG <= 29 mg/L Apr, May
D036Nitrogen, ammonia total [as N]MO AVG <= 18 mg/L Jan, Feb, Mar, Dec
D036Nitrogen, ammonia total [as N]MO AVG <= 1.9 mg/L Jun, Jul, Aug, Sep
D036Nitrogen, ammonia total [as N]MO AVG <= 11 mg/L Oct, Nov
D036Nitrogen, ammonia total [as N]MO AVG <= 97.3 kg/d Apr, May
D036Nitrogen, ammonia total [as N]MO AVG <= 60.4 kg/d Jan, Feb, Mar, Dec
D036Nitrogen, ammonia total [as N]MO AVG <= 6.4 kg/d Jun, Jul, Aug, Sep
D036Nitrogen, ammonia total [as N]MO AVG <= 36.9 kg/d Oct, Nov
D036Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D036Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D036Phosphorus, total [as P]MO AVG <= 1 mg/L all year
D036Phosphorus, total [as P]MO AVG report only all year
D036Phosphorus, total [as P]ANNL TOT <= 982.5 kg/yr all year
D036Calcium, total [as Ca]MO MAX report only all year
D036Magnesium, total [as Mg]MO MAX report only all year
D036Sodium, total [as Na]MO MAX report only all year
D036Potassium, total [as K]MO MAX report only all year
D036Chloride [as Cl]MO MAX report only all year
D036Sulfate, total [as SO4]MO MAX report only all year
D036Hardness, Ca Mg Calculated [mg/L as CaCO3]MO MAX report only all year
D036Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D036Flow, in conduit or thru treatment plantMO AVG report only all year
D036Flow, in conduit or thru treatment plantMO MAX report only all year
D036Flow, in conduit or thru treatment plantMO TOTAL report only all year
D036Solids, total dissolvedMO AVG report only all year
D036Mercury, dissolved [as Hg]MO MAX report only Jul
D036Mercury, total [as Hg]MO MAX report only Jul
D036BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
D036BOD, carbonaceous [5 day, 20 C]MX WK AV <= 15 mg/L all year
D036BOD, carbonaceous [5 day, 20 C]MO AVG <= 33.6 kg/d all year
D036BOD, carbonaceous [5 day, 20 C]MX WK AV <= 50.3 kg/d all year
D036BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
D036Solids, suspended percent removalMO AV MN >= 85 % all year
S039Precipitation, total defined period/inMO TOTAL report only all year
S039pHMO MIN report only all year
S039pHMO MAX report only all year
S039Solids, total suspendedMO AVG report only all year
S039Solids, total suspendedMO MAX report only all year
S039Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S039Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S039Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S039Phosphorus, total [as P]MO AVG report only all year
S039BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
S039BOD, 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