Fergus Falls city of

NPDES permit MN0050628 · Major POTW · effective, expires 2028-08-31 · 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 24 forms filed late

Last period with anything received: 2026-07-31.

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 (46)

OutfallParameterStatisticLimitMonths
D045Oxygen, dissolved [DO]MO MIN report only all year
D045pHMO MIN >= 6 SU all year
D045pHMO MAX <= 9 SU all year
D045Solids, total suspendedMO AVG <= 30 mg/L all year
D045Solids, total suspendedMX WK AV <= 45 mg/L all year
D045Solids, total suspendedMO MAX report only May, Sep
D045Solids, total suspendedMO AVG <= 318.7 kg/d all year
D045Solids, total suspendedMX WK AV <= 478 kg/d all year
D045Nitrogen, total [as N]MO AVG report only all year
D045Nitrogen, ammonia total [as N]MO AVG report only Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
D045Nitrogen, ammonia total [as N]MO AVG <= 4.3 mg/L Jun, Jul, Aug, Sep
D045Nitrogen, ammonia total [as N]MO AVG <= 45.7 kg/d Jun, Jul, Aug, Sep
D045Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
D045Nitrite + Nitrate total [as N]MO AVG report only all year
D045Phosphorus, total [as P]MO AVG <= 1 mg/L all year
D045Phosphorus, total [as P]MO AVG <= 10.6 kg/d all year
D045Sulfate, total [as SO4]QRTR AVG report only Mar, Jun, Sep, Dec
D045Arsenic, total [as As]MO AVG report only Apr, Sep
D045Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D045Flow, in conduit or thru treatment plantMO AVG report only all year
D045Flow, in conduit or thru treatment plantMO MAX report only all year
D045Flow, in conduit or thru treatment plantMO TOTAL report only all year
D045Chlorine, total residualDAILY MX <= .038 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
D045Solids, total dissolvedMO AVG report only Mar, Sep
D045Mercury, dissolved [as Hg]MO MAX report only May, Sep
D045Mercury, total [as Hg]MO MAX report only May, Sep
D045BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
D045BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L all year
D045BOD, carbonaceous [5 day, 20 C]MO AVG <= 265.5 kg/d all year
D045BOD, carbonaceous [5 day, 20 C]MX WK AV <= 424.9 kg/d all year
D045BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
D045Solids, suspended percent removalMO AV MN >= 85 % all year
S048Precipitation, total defined period/inMO TOTAL report only all year
S048pHMO MIN report only all year
S048pHMO MAX report only all year
S048Solids, total suspendedMO AVG report only all year
S048Solids, total suspendedMO MAX report only all year
S048Nitrogen, total [as N]MO AVG report only all year
S048Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
S048Nitrite + Nitrate total [as N]MO AVG report only all year
S048Phosphorus, total [as P]MO AVG report only all year
S048Flow, in conduit or thru treatment plantMO AVG report only all year
S048Flow, in conduit or thru treatment plantMO MAX report only all year
S048Flow, in conduit or thru treatment plantMO TOTAL report only all year
S048BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
S048BOD, 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