Olivia city of

NPDES permit MN0020907 · Minor POTW · effective, expires 2027-10-31 · 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 36 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 (51)

OutfallParameterStatisticLimitMonths
D022Specific conductanceMO MAX report only all year
D022Oxygen, dissolved [DO]MO MIN report only all year
D022pHMO MIN >= 6 SU all year
D022pHMO MAX <= 9 SU all year
D022Bicarbonate ion- [as HCO3]MO MAX report only all year
D022Solids, total suspendedMO AVG <= 30 mg/L all year
D022Solids, total suspendedMO MAX report only Jul
D022Solids, total suspendedMX WK AV <= 45 mg/L all year
D022Solids, total suspendedMO AVG <= 111.1 kg/d all year
D022Solids, total suspendedMX WK AV <= 166.7 kg/d all year
D022Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D022Nitrogen, ammonia total [as N]MO AVG report only Mar, Sep
D022Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D022Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D022Phosphorus, total [as P]MO AVG report only Jun, Jul, Aug, Sep
D022Phosphorus, total [as P]MO AVG report only Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
D022Phosphorus, total [as P]MO AVG <= 4.9 kg/d Jun, Jul, Aug, Sep
D022Phosphorus, total [as P]MO AVG report only Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
D022Phosphorus, total [as P]ANNL TOT <= 1354 kg/yr all year
D022Calcium, total [as Ca]MO MAX report only all year
D022Magnesium, total [as Mg]MO MAX report only all year
D022Sodium, total [as Na]MO MAX report only all year
D022Potassium, total [as K]MO MAX report only all year
D022Chloride [as Cl]MO MAX report only all year
D022Sulfate, total [as SO4]MO MAX report only all year
D022Hardness, Ca Mg Calculated [mg/L as CaCO3]MO MAX report only all year
D022Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL May, Jun, Jul, Aug, Sep, Oct
D022Flow, in conduit or thru treatment plantMO AVG report only all year
D022Flow, in conduit or thru treatment plantMO MAX report only all year
D022Flow, in conduit or thru treatment plantMO TOTAL report only all year
D022Chlorine, total residualDAILY MX <= .038 mg/L May, Jun, Jul, Aug, Sep, Oct
D022Solids, total dissolvedMO AVG report only all year
D022Mercury, dissolved [as Hg]MO MAX report only Jul
D022Mercury, total [as Hg]MO MAX report only Jul
D022BOD, carbonaceous [5 day, 20 C]MO AVG <= 15 mg/L all year
D022BOD, carbonaceous [5 day, 20 C]MX WK AV <= 25 mg/L all year
D022BOD, carbonaceous [5 day, 20 C]MO AVG <= 55.6 kg/d all year
D022BOD, carbonaceous [5 day, 20 C]MX WK AV <= 83.4 kg/d all year
D022BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
D022Solids, suspended percent removalMO AV MN >= 85 % all year
S023Precipitation, total defined period/inMO TOTAL report only all year
S023pHMO MIN report only all year
S023pHMO MAX report only all year
S023Solids, total suspendedMO AVG report only all year
S023Solids, total suspendedMO MAX report only all year
S023Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S023Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S023Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S023Phosphorus, total [as P]MO AVG report only all year
S023BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
S023BOD, 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