Morgan city of

NPDES permit MN0020443 · Minor POTW · expired, expires 2021-09-30 · 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.

This permit expired on 2021-09-30 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
1required values missing, on 1 form(s)
0of 46 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 (49)

OutfallParameterStatisticLimitMonths
D018Specific conductanceDAILY MX <= 6318 umho/cm all year
D018Oxygen, dissolved [DO]MO MIN report only all year
D018pHMO MIN >= 6 SU all year
D018pHMO MAX <= 9 SU all year
D018Bicarbonate ion- [as HCO3]DAILY MX <= 1352 mg/L all year
D018Solids, total suspendedMO AVG <= 45 mg/L all year
D018Solids, total suspendedMO MAX report only Jun, Dec
D018Solids, total suspendedMX WK AV <= 65 mg/L all year
D018Solids, total suspendedMO AVG <= 394 kg/d all year
D018Solids, total suspendedMX WK AV <= 564 kg/d all year
D018Nitrogen, total [as N]MO AVG report only all year
D018Nitrogen, ammonia total [as N]MO AVG report only Jun, Dec
D018Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
D018Nitrite + Nitrate total [as N]MO AVG report only all year
D018Phosphorus, total [as P]MO AVG report only all year
D018Phosphorus, total [as P]ANNL TOT <= 496 kg/yr all year
D018Phosphorus, total [as P]MO TOTAL report only all year
D018Calcium, total [as Ca]MO AVG report only all year
D018Magnesium, total [as Mg]MO AVG report only all year
D018Sodium, total [as Na]MO AVG report only all year
D018Potassium, total [as K]MO AVG report only all year
D018Chloride [as Cl]DAILY MX <= 1547 mg/L all year
D018Sulfate, total [as SO4]MO AVG report only all year
D018Hardness, Ca Mg Calculated [mg/L as CaCO3]DAILY MX <= 1260 mg/L all year
D018Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL May, Jun, Jul, Aug, Sep, Oct
D018Flow, in conduit or thru treatment plantMO AVG report only Jan, Feb, Jun, Jul, Aug, Sep
D018Flow, in conduit or thru treatment plantMO AVG report only Mar, Apr, May, Oct, Nov, Dec
D018Flow, in conduit or thru treatment plantMO MAX report only Jan, Feb, Jun, Jul, Aug, Sep
D018Flow, in conduit or thru treatment plantMO MAX report only Mar, Apr, May, Oct, Nov, Dec
D018Flow, in conduit or thru treatment plantMO TOTAL report only Jan, Feb, Jun, Jul, Aug, Sep
D018Flow, in conduit or thru treatment plantMO TOTAL report only Mar, Apr, May, Oct, Nov, Dec
D018Solids, total dissolvedDAILY MX <= 3660 mg/L all year
D018Mercury, dissolved [as Hg]MO MAX report only Jun, Dec
D018Mercury, total [as Hg]MO MAX report only Jun, Dec
D018BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
D018BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L all year
D018BOD, carbonaceous [5 day, 20 C]MO AVG <= 219 kg/d all year
D018BOD, carbonaceous [5 day, 20 C]MX WK AV <= 350 kg/d all year
S017Precipitation, total defined period/inMO TOTAL report only all year
S017pHINST MAX report only Mar, Jun, Sep, Dec
S017Solids, total suspendedMO AVG report only Mar, Jun, Sep, Dec
S017Nitrogen, total [as N]MO AVG report only Mar, Jun, Sep, Dec
S017Nitrogen, Kjeldahl, total [as N]MO AVG report only Mar, Jun, Sep, Dec
S017Nitrite + Nitrate total [as N]MO AVG report only Mar, Jun, Sep, Dec
S017Phosphorus, total [as P]MO AVG report only Mar, Jun, Sep, Dec
S017Flow, in conduit or thru treatment plantMO AVG report only all year
S017Flow, in conduit or thru treatment plantMO MAX report only all year
S017Flow, in conduit or thru treatment plantMO TOTAL report only all year
S017BOD, carbonaceous [5 day, 20 C]MO 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