New Ulm city of

NPDES permit MN0030066 · Major POTW · effective, expires 2029-02-28 · 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

2values over a limit
0required values missing, on 0 form(s)
0of 81 forms filed late

Last period with anything received: 2026-07-31. Most often over: Coliform, fecal MPN + membrane ftl 44.5 C (2).

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 (88)

OutfallParameterStatisticLimitMonths
D175Specific conductanceMO MAX report only all year
D175Oxygen, dissolved [DO]MO MIN report only all year
D175pHMO MIN >= 6 SU all year
D175pHMO MAX <= 9 SU all year
D175Bicarbonate ion- [as HCO3]MO MAX report only all year
D175Solids, total suspendedMO AVG <= 30 mg/L all year
D175Solids, total suspendedMO MAX report only May, Sep
D175Solids, total suspendedMX WK AV <= 45 mg/L all year
D175Nitrogen, total [as N]MO AVG report only all year
D175Nitrogen, ammonia total [as N]MO AVG report only Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
D175Nitrogen, ammonia total [as N]MO AVG <= 19 mg/L Jun, Jul, Aug, Sep
D175Nitrogen, ammonia total [as N]MO AVG <= 487 kg/d Jun, Jul, Aug, Sep
D175Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
D175Nitrite + Nitrate total [as N]MO AVG report only all year
D175Phosphorus, total [as P]1D <= 1 mg/L all year
D175Phosphorus, total [as P]MO AVG report only all year
D175Phosphorus, total [as P]MO AVG report only all year
D175Calcium, total [as Ca]MO MAX report only all year
D175Magnesium, total [as Mg]MO MAX report only all year
D175Sodium, total [as Na]MO MAX report only all year
D175Potassium, total [as K]MO MAX report only all year
D175Chloride [as Cl]MO MAX report only all year
D175Sulfate, total [as SO4]MO MAX report only all year
D175Hardness, Ca Mg Calculated [mg/L as CaCO3]MO MAX report only all year
D175Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D175Flow, in conduit or thru treatment plantMO AVG report only all year
D175Flow, in conduit or thru treatment plantMO MAX report only all year
D175Flow, in conduit or thru treatment plantMO TOTAL report only all year
D175Chlorine, total residualDAILY MX <= .038 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
D175Solids, total dissolvedMO MAX report only all year
D175Mercury, dissolved [as Hg]MO MAX report only May, Sep
D175Mercury, total [as Hg]MO MAX report only May, Sep
D175BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
D175BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L all year
D176Specific conductanceMO MAX report only all year
D176Oxygen, dissolved [DO]MO MIN report only all year
D176pHMO MIN >= 6 SU all year
D176pHMO MAX <= 9 SU all year
D176Bicarbonate ion- [as HCO3]MO MAX report only all year
D176Solids, total suspendedMO AVG <= 30 mg/L all year
D176Solids, total suspendedMO MAX report only May, Sep
D176Solids, total suspendedMX WK AV <= 45 mg/L all year
D176Nitrogen, total [as N]MO AVG report only all year
D176Nitrogen, ammonia total [as N]MO AVG report only all year
D176Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
D176Nitrite + Nitrate total [as N]MO AVG report only all year
D176Phosphorus, total [as P]1D <= 1 mg/L all year
D176Phosphorus, total [as P]MO AVG report only all year
D176Phosphorus, total [as P]MO AVG report only all year
D176Calcium, total [as Ca]MO MAX report only all year
D176Magnesium, total [as Mg]MO MAX report only all year
D176Sodium, total [as Na]MO MAX report only all year
D176Potassium, total [as K]MO MAX report only all year
D176Chloride [as Cl]MO MAX report only all year
D176Sulfate, total [as SO4]MO MAX report only all year
D176Hardness, Ca Mg Calculated [mg/L as CaCO3]MO MAX report only all year
D176Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D176Flow, in conduit or thru treatment plantMO AVG report only all year
D176Flow, in conduit or thru treatment plantMO MAX report only all year
D176Flow, in conduit or thru treatment plantMO TOTAL report only all year
D176Chlorine, total residualDAILY MX <= .038 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
D176Solids, total dissolvedMO MAX report only all year
D176Mercury, dissolved [as Hg]MO MAX report only May, Sep
D176Mercury, total [as Hg]MO MAX report only May, Sep
D176BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
D176BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L all year
D177Solids, total suspendedMO AVG <= 768 kg/d all year
D177Solids, total suspendedMX WK AV <= 1152 kg/d all year
D177Phosphorus, total [as P]MO AVG <= 20 kg/d Jun, Jul, Aug, Sep
D177Phosphorus, total [as P]ANNL TOT <= 7482 kg/yr all year
D177Flow, in conduit or thru treatment plantMO AVG report only all year
D177Flow, in conduit or thru treatment plantMO MAX report only all year
D177Flow, in conduit or thru treatment plantMO TOTAL report only all year
D177BOD, carbonaceous [5 day, 20 C]MO AVG <= 640 kg/d all year
D177BOD, carbonaceous [5 day, 20 C]MX WK AV <= 1024 kg/d all year
D177BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
D177Solids, suspended percent removalMO AV MN >= 85 % all year
S178Precipitation, total defined period/inMO TOTAL report only all year
S178pHMO MIN report only all year
S178pHMO MAX report only all year
S178Solids, total suspendedMO AVG report only all year
S178Solids, total suspendedMO MAX report only all year
S178Nitrogen, total [as N]MO AVG report only all year
S178Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
S178Nitrite + Nitrate total [as N]MO AVG report only all year
S178Phosphorus, total [as P]MO AVG report only all year
S178BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
S178BOD, 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