Redwood Falls city of

NPDES permit MN0020401 · Major POTW · effective, expires 2027-12-31 · 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

1values over a limit
0required values missing, on 0 form(s)
0of 34 forms filed late

Last period with anything received: 2026-07-31. Most often over: Solids, total suspended (1).

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 (62)

OutfallParameterStatisticLimitMonths
D013Temperature, water deg. centigradeMO MAX report only all year
D013Specific conductanceQB report only Mar, Jun, Sep, Dec
D013Oxygen, dissolved [DO]MO MIN report only all year
D013pHMO MIN >= 6 SU all year
D013pHMO MAX <= 9 SU all year
D013Bicarbonate ion- [as HCO3]QB report only Mar, Jun, Sep, Dec
D013Solids, total suspendedMO AVG <= 45 mg/L all year
D013Solids, total suspendedMX WK AV <= 65 mg/L all year
D013Solids, total suspendedMO MAX report only May, Sep
D013Solids, total suspendedMO AVG <= 225 kg/d all year
D013Solids, total suspendedMX WK AV <= 324 kg/d all year
D013Nitrogen, total [as N]MO AVG report only all year
D013Nitrogen, ammonia total [as N]MO AVG <= 9.7 mg/L Oct, Nov
D013Nitrogen, ammonia total [as N]MO AVG <= 7.5 mg/L Jun, Jul, Aug, Sep
D013Nitrogen, ammonia total [as N]MO AVG <= 94 mg/L Jan, Feb, Mar, Dec
D013Nitrogen, ammonia total [as N]MO AVG <= 64 mg/L Apr, May
D013Nitrogen, ammonia total [as N]MO AVG <= 48.4 kg/d Oct, Nov
D013Nitrogen, ammonia total [as N]MO AVG <= 37.4 kg/d Jun, Jul, Aug, Sep
D013Nitrogen, ammonia total [as N]MO AVG <= 469 kg/d Jan, Feb, Mar, Dec
D013Nitrogen, ammonia total [as N]MO AVG <= 319 kg/d Apr, May
D013Nitrogen, ammonia, tot unionized [as N]DAILY MX <= 1 mg/L all year
D013Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
D013Nitrite + Nitrate total [as N]MO AVG report only all year
D013Phosphorus, total [as P]MO AVG report only Jun, Jul, Aug, Sep
D013Phosphorus, total [as P]MO AVG report only Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
D013Phosphorus, total [as P]MO AVG <= 3.9 kg/d Jun, Jul, Aug, Sep
D013Phosphorus, total [as P]MO AVG report only Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
D013Phosphorus, total [as P]ANNL TOT <= 1460 kg/yr all year
D013Calcium, total [as Ca]QB report only Mar, Jun, Sep, Dec
D013Magnesium, total [as Mg]QB report only Mar, Jun, Sep, Dec
D013Sodium, total [as Na]QB report only Mar, Jun, Sep, Dec
D013Potassium, total [as K]QB report only Mar, Jun, Sep, Dec
D013Chloride [as Cl]MO AVG <= 873 mg/L all year
D013Chloride [as Cl]DAILY MX <= 1720 mg/L all year
D013Sulfate, total [as SO4]QB report only Mar, Jun, Sep, Dec
D013Chromium, hexavalent [as Cr]MO MAX report only May, Sep
D013Hardness, Ca Mg Calculated [mg/L as CaCO3]QB report only Mar, Jun, Sep, Dec
D013Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D013Flow, in conduit or thru treatment plantMO AVG report only all year
D013Flow, in conduit or thru treatment plantMO MAX report only all year
D013Flow, in conduit or thru treatment plantMO TOTAL report only all year
D013Solids, total dissolvedQB report only Mar, Jun, Sep, Dec
D013Mercury, dissolved [as Hg]MO MAX report only May, Sep
D013Mercury, total [as Hg]MO MAX report only May, Sep
D013BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
D013BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L all year
D013BOD, carbonaceous [5 day, 20 C]MO AVG <= 125 kg/d all year
D013BOD, carbonaceous [5 day, 20 C]MX WK AV <= 200 kg/d all year
S014Precipitation, total defined period/inMO TOTAL report only all year
S014pHMO MIN report only all year
S014pHMO MAX report only all year
S014Solids, total suspendedMO AVG report only all year
S014Solids, total suspendedMO MAX report only all year
S014Nitrogen, total [as N]MO AVG report only all year
S014Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
S014Nitrite + Nitrate total [as N]MO AVG report only all year
S014Phosphorus, total [as P]MO AVG report only all year
S014Flow, in conduit or thru treatment plantMO AVG report only all year
S014Flow, in conduit or thru treatment plantMO MAX report only all year
S014Flow, in conduit or thru treatment plantMO TOTAL report only all year
S014BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
S014BOD, 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