Lake City city of

NPDES permit MN0020664 · Major POTW · effective, expires 2029-10-31 · 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 39 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 (43)

OutfallParameterStatisticLimitMonths
D042Oxygen, dissolved [DO]MO MIN report only all year
D042pHMO MIN >= 6 SU all year
D042pHMO MAX <= 9 SU all year
D042Solids, total suspendedMO AVG <= 30 mg/L all year
D042Solids, total suspendedMO MAX report only May, Sep
D042Solids, total suspendedMX WK AV <= 45 mg/L all year
D042Solids, total suspendedMO AVG <= 172.3 kg/d all year
D042Solids, total suspendedMX WK AV <= 258.5 kg/d all year
D042Nitrogen, total [as N]MO AVG report only all year
D042Nitrogen, ammonia total [as N]MO AVG report only all year
D042Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
D042Nitrite + Nitrate total [as N]MO AVG report only all year
D042Phosphorus, total [as P]1D <= 1 mg/L all year
D042Phosphorus, total [as P]MO AVG report only all year
D042Phosphorus, total [as P]MO AVG report only all year
D042Phosphorus, total [as P]ANNL TOT <= 1680 kg/yr all year
D042Sulfate, total [as SO4]QB report only Mar, Jun, Sep, Dec
D042Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D042Flow, in conduit or thru treatment plantMO AVG report only all year
D042Flow, in conduit or thru treatment plantMO MAX report only all year
D042Flow, in conduit or thru treatment plantMO TOTAL report only all year
D042Solids, total dissolvedMO AVG report only Mar, Sep
D042Mercury, dissolved [as Hg]MO MAX report only May, Sep
D042Mercury, total [as Hg]MO MAX report only May, Sep
D042BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
D042BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L all year
D042BOD, carbonaceous [5 day, 20 C]MO AVG <= 143.6 kg/d all year
D042BOD, carbonaceous [5 day, 20 C]MX WK AV <= 230.1 kg/d all year
D042BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
D042Solids, suspended percent removalMO AV MN >= 85 % all year
D045Solids, total suspendedANNL AVG report only all year
D045BOD, carbonaceous [5 day, 20 C]ANNL AVG report only all year
S043Precipitation, total defined period/inMO TOTAL report only all year
S043pHMO MIN report only all year
S043pHMO MAX report only all year
S043Solids, total suspendedMO AVG report only all year
S043Solids, total suspendedMO MAX report only all year
S043Nitrogen, total [as N]MO AVG report only all year
S043Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
S043Nitrite + Nitrate total [as N]MO AVG report only all year
S043Phosphorus, total [as P]MO AVG report only all year
S043BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
S043BOD, 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