Stewartville city of

NPDES permit MN0020681 · Major POTW · effective, expires 2029-11-30 · 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

0values over a limit
0required values missing, on 0 form(s)
0of 27 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 (47)

OutfallParameterStatisticLimitMonths
D021Specific conductanceMO MAX report only all year
D021Oxygen, dissolved [DO]MO MIN report only all year
D021pHMO MIN >= 6 SU all year
D021pHMO MAX <= 9 SU all year
D021Solids, total suspendedMO AVG <= 30 mg/L all year
D021Solids, total suspendedMO MAX report only May, Sep
D021Solids, total suspendedMX WK AV <= 45 mg/L all year
D021Solids, total suspendedMO AVG <= 126 kg/d all year
D021Solids, total suspendedMX WK AV <= 189 kg/d all year
D021Nitrogen, total [as N]MO AVG report only all year
D021Nitrogen, ammonia total [as N]MO AVG report only all year
D021Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
D021Nitrite + Nitrate total [as N]MO AVG report only all year
D021Phosphorus, total [as P]MO AVG report only all year
D021Phosphorus, total [as P]MO AVG report only all year
D021Chloride [as Cl]MO MAX report only all year
D021Sulfate, total [as SO4]MO MAX report only all year
D021Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D021Flow, in conduit or thru treatment plantMO AVG report only all year
D021Flow, in conduit or thru treatment plantMO MAX report only all year
D021Flow, in conduit or thru treatment plantMO TOTAL report only all year
D021Chlorine, total residualDAILY MX <= .038 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
D021Solids, total dissolvedMO MAX report only all year
D021Mercury, dissolved [as Hg]MO MAX report only May, Sep
D021Mercury, total [as Hg]MO MAX report only May, Sep
D021BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
D021BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L all year
D021BOD, carbonaceous [5 day, 20 C]MO AVG <= 105 kg/d all year
D021BOD, carbonaceous [5 day, 20 C]MX WK AV <= 169 kg/d all year
D021BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
D021Solids, suspended percent removalMO AV MN >= 85 % all year
D023Solids, total suspendedANNL AVG report only all year
D023BOD, carbonaceous [5 day, 20 C]ANNL AVG report only all year
S024Precipitation, total defined period/inMO TOTAL report only all year
S024pHMO MIN report only all year
S024pHMO MAX report only all year
S024Solids, total suspendedMO AVG report only all year
S024Solids, total suspendedMO MAX report only all year
S024Nitrogen, total [as N]MO AVG report only all year
S024Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
S024Nitrite + Nitrate total [as N]MO AVG report only all year
S024Phosphorus, total [as P]MO AVG report only all year
S024Flow, in conduit or thru treatment plantMO AVG report only all year
S024Flow, in conduit or thru treatment plantMO MAX report only all year
S024Flow, in conduit or thru treatment plantMO TOTAL report only all year
S024BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
S024BOD, 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