Holdingford city of

NPDES permit MN0023710 · Minor POTW · effective, expires 2030-09-30 · EPA's file as of 2026-09-19

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EPA's record, 2025-09-01 to 2026-08-31

1values over a limit
1required values missing, on 1 form(s)
0of 31 forms filed late

Last period with anything received: 2026-07-31. Most often over: pH (1).

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 (50)

OutfallParameterStatisticLimitMonths
D013Oxygen, dissolved [DO]MO MIN >= 7.5 mg/L all year
D013pHMO MIN >= 6 SU all year
D013pHMO MAX <= 9 SU all year
D013Solids, total suspendedMO AVG <= 30 mg/L all year
D013Solids, total suspendedMX WK AV <= 45 mg/L all year
D013Solids, total suspendedMO MAX report only Jul
D013Solids, total suspendedMO AVG <= 27.7 kg/d all year
D013Solids, total suspendedMX WK AV <= 41.5 kg/d all year
D013Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D013Nitrogen, ammonia total [as N]MO AVG <= 1 mg/L Jun, Jul, Aug, Sep
D013Nitrogen, ammonia total [as N]MO AVG <= 12 mg/L Jan, Feb, Mar, Dec
D013Nitrogen, ammonia total [as N]MO AVG <= 4 mg/L Apr, May, Oct, Nov
D013Nitrogen, ammonia total [as N]MO AVG <= .92 kg/d Jun, Jul, Aug, Sep
D013Nitrogen, ammonia total [as N]MO AVG <= 11.1 kg/d Jan, Feb, Mar, Dec
D013Nitrogen, ammonia total [as N]MO AVG <= 3.7 kg/d Apr, May, Oct, Nov
D013Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D013Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D013Phosphorus, total [as P]MO AVG report only all year
D013Phosphorus, total [as P]MO AVG report only all year
D013Phosphorus, total [as P]ANNL TOT <= 337 kg/yr all year
D013Chloride [as Cl]MO AVG <= 628 mg/L Jan, Mar, May, Jul, Sep, Nov
D013Sulfate, total [as SO4]QB report only Mar, Jun, Sep, Dec
D013Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D013Flow, in conduit or thru treatment plantMO AVG report only all year
D013Flow, in conduit or thru treatment plantMO MAX report only all year
D013Flow, in conduit or thru treatment plantMO TOTAL report only all year
D013Chlorine, total residualDAILY MX <= .038 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
D013Solids, total dissolvedMO AVG report only Mar, Sep
D013Mercury, dissolved [as Hg]MO MAX report only Jul
D013Mercury, total [as Hg]MO MAX report only Jul
D013BOD, carbonaceous [5 day, 20 C]MO AVG <= 15 mg/L all year
D013BOD, carbonaceous [5 day, 20 C]MX WK AV <= 25 mg/L all year
D013BOD, carbonaceous [5 day, 20 C]MO AVG <= 13.8 kg/d all year
D013BOD, carbonaceous [5 day, 20 C]MX WK AV <= 23.1 kg/d all year
D013BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
D013Solids, suspended percent removalMO AV MN >= 85 % all year
S014Precipitation, total defined period/inMO TOTAL report only all year
S014pHMO MIN report only all year
S014pHMO MAX report only all year
S014Solids, total suspendedMO AVG report only all year
S014Solids, total suspendedMO MAX report only all year
S014Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S014Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S014Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S014Phosphorus, total [as P]MO AVG report only all year
S014Flow, in conduit or thru treatment plantMO AVG report only all year
S014Flow, in conduit or thru treatment plantMO MAX report only all year
S014Flow, in conduit or thru treatment plantMO TOTAL report only all year
S014BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
S014BOD, 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