Morris city of

NPDES permit MN0021318 · Minor POTW · effective, expires 2028-07-31 · 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 84 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 (105)

OutfallParameterStatisticLimitMonths
D009Specific conductanceANNL MAX report only all year
D009Oxygen, dissolved [DO]MO MIN report only all year
D009pHMO MIN >= 6 SU all year
D009pHMO MAX <= 9 SU all year
D009Bicarbonate ion- [as HCO3]ANNL MAX report only all year
D009Solids, total suspendedMO AVG report only all year
D009Solids, total suspendedMO AVG <= 45 mg/L all year
D009Solids, total suspendedDAILY MX report only all year
D009Solids, total suspendedMX WK AV <= 65 mg/L all year
D009Solids, total suspendedMO AVG <= 555 kg/d all year
D009Solids, total suspendedMX WK AV <= 801 kg/d all year
D009Nitrogen, total [as N]MO AVG report only all year
D009Nitrogen, ammonia total [as N]MO AVG report only all year
D009Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
D009Nitrite + Nitrate total [as N]MO AVG report only all year
D009Phosphorus, total [as P]MO AVG report only all year
D009Phosphorus, total [as P]MO AVG report only all year
D009Calcium, total [as Ca]ANNL MAX report only all year
D009Magnesium, total [as Mg]ANNL MAX report only all year
D009Sodium, total [as Na]ANNL MAX report only all year
D009Potassium, total [as K]ANNL MAX report only all year
D009Chloride [as Cl]DAILY MX <= 429 mg/L all year
D009Sulfate, total [as SO4]ANNL MAX report only all year
D009Hardness, Ca Mg Calculated [mg/L as CaCO3]ANNL MAX report only all year
D009Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D009Flow, in conduit or thru treatment plantMO AVG report only Jan, Feb, Jul, Aug
D009Flow, in conduit or thru treatment plantMO AVG report only Mar, Apr, May, Jun, Sep, Oct, Nov, Dec
D009Flow, in conduit or thru treatment plantMO MAX report only Jan, Feb, Jul, Aug
D009Flow, in conduit or thru treatment plantMO MAX report only Mar, Apr, May, Jun, Sep, Oct, Nov, Dec
D009Flow, in conduit or thru treatment plantMO TOTAL report only Jan, Feb, Jul, Aug
D009Flow, in conduit or thru treatment plantMO TOTAL report only Mar, Apr, May, Jun, Sep, Oct, Nov, Dec
D009Solids, total dissolvedMO AVG report only all year
D009Mercury, dissolved [as Hg]MO AVG report only all year
D009Mercury, dissolved [as Hg]DAILY MX report only all year
D009Mercury, total [as Hg]MO AVG report only all year
D009Mercury, total [as Hg]DAILY MX report only all year
D009BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
D009BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L all year
D009BOD, carbonaceous [5 day, 20 C]MO AVG <= 307.5 kg/d all year
D009BOD, carbonaceous [5 day, 20 C]MX WK AV <= 492.6 kg/d all year
D010Specific conductanceANNL MAX report only all year
D010Oxygen, dissolved [DO]MO MIN report only all year
D010pHMO MIN >= 6 SU all year
D010pHMO TOTAL <= 9 SU all year
D010Bicarbonate ion- [as HCO3]ANNL MAX report only all year
D010Solids, total suspendedMO AVG <= 45 mg/L all year
D010Solids, total suspendedMO AVG report only all year
D010Solids, total suspendedMX WK AV <= 65 mg/L all year
D010Solids, total suspendedDAILY MX report only all year
D010Solids, total suspendedMO AVG <= 830.3 kg/d all year
D010Solids, total suspendedMX WK AV <= 1200.7 kg/d all year
D010Nitrogen, total [as N]MO AVG report only all year
D010Nitrogen, ammonia total [as N]MO AVG report only all year
D010Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
D010Nitrite + Nitrate total [as N]MO AVG report only all year
D010Phosphorus, total [as P]MO AVG report only all year
D010Phosphorus, total [as P]MO AVG report only all year
D010Calcium, total [as Ca]ANNL MAX report only all year
D010Magnesium, total [as Mg]ANNL MAX report only all year
D010Sodium, total [as Na]ANNL MAX report only all year
D010Potassium, total [as K]ANNL MAX report only all year
D010Chloride [as Cl]DAILY MX <= 406 mg/L all year
D010Sulfate, total [as SO4]ANNL MAX report only all year
D010Hardness, Ca Mg Calculated [mg/L as CaCO3]ANNL MAX report only all year
D010Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D010Flow, in conduit or thru treatment plantMO AVG report only Jan, Feb, Jul, Aug
D010Flow, in conduit or thru treatment plantMO AVG report only Mar, Apr, May, Jun, Sep, Oct, Nov, Dec
D010Flow, in conduit or thru treatment plantMO MAX report only Jan, Feb, Jul, Aug
D010Flow, in conduit or thru treatment plantMO MAX report only Mar, Apr, May, Jun, Sep, Oct, Nov, Dec
D010Flow, in conduit or thru treatment plantMO TOTAL report only Jan, Feb, Jul, Aug
D010Flow, in conduit or thru treatment plantMO TOTAL report only Mar, Apr, May, Jun, Sep, Oct, Nov, Dec
D010Solids, total dissolvedMO AVG report only all year
D010Mercury, dissolved [as Hg]MO AVG report only all year
D010Mercury, dissolved [as Hg]DAILY MX report only all year
D010Mercury, total [as Hg]MO AVG report only all year
D010Mercury, total [as Hg]DAILY MX report only all year
D010BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
D010BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L all year
D010BOD, carbonaceous [5 day, 20 C]MO AVG <= 461.3 kg/d all year
D010BOD, carbonaceous [5 day, 20 C]MX WK AV <= 738.9 kg/d all year
D014Phosphorus, total [as P]YA <= 1331 kg/yr all year
S011Precipitation, total defined period/inMO TOTAL report only all year
S011pHQB report only Mar, Jun, Sep, Dec
S011Solids, total suspendedQRTR AVG report only Mar, Jun, Sep, Dec
S011Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S011Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S011Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S011Phosphorus, total [as P]QRTR AVG report only Mar, Jun, Sep, Dec
S011Flow, in conduit or thru treatment plantMO AVG report only all year
S011Flow, in conduit or thru treatment plantMO MAX report only all year
S011Flow, in conduit or thru treatment plantMO TOTAL report only all year
S011Mercury, total [as Hg]MO AVG report only all year
S011BOD, carbonaceous [5 day, 20 C]QRTR AVG report only Mar, Jun, Sep, Dec
S012Precipitation, total defined period/inMO TOTAL report only all year
S012pHQB report only Mar, Jun, Sep, Dec
S012Solids, total suspendedQRTR AVG report only Mar, Jun, Sep, Dec
S012Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S012Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S012Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S012Phosphorus, total [as P]QRTR AVG report only Mar, Jun, Sep, Dec
S012Flow, in conduit or thru treatment plantMO AVG report only all year
S012Flow, in conduit or thru treatment plantMO MAX report only all year
S012Flow, in conduit or thru treatment plantMO TOTAL report only all year
S012Mercury, total [as Hg]MO AVG report only all year
S012BOD, carbonaceous [5 day, 20 C]QRTR AVG report only Mar, Jun, Sep, Dec

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