City of Monroe

NPDES permit MI0028401 · Major POTW · administratively continued, expires 2024-10-01 · 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 2024-10-01 and is administratively continued: 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
12required values missing, on 3 form(s)
0of 12 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 MI permits in EPA's filings — check your permit).

Limits in force (98)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN >= 3 mg/L all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG = 30 mg/L all year
001Solids, total suspended7 DA AVG = 45 mg/L all year
001Solids, total suspendedMO AVG = 6000 lb/d all year
001Solids, total suspendedDAILY MX = 9000 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG = 12 mg/L Oct, Nov
001Nitrogen, ammonia total [as N]MO AVG = 14 mg/L Apr
001Nitrogen, ammonia total [as N]MO AVG = 5.5 mg/L May, Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MO AVG report only Jan, Feb, Mar, Dec
001Nitrogen, ammonia total [as N]DAILY MX report only Oct, Nov
001Nitrogen, ammonia total [as N]DAILY MX report only Apr
001Nitrogen, ammonia total [as N]DAILY MX report only May, Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]DAILY MX report only Jan, Feb, Mar, Dec
001Nitrogen, ammonia total [as N]MO AVG = 2400 lb/d Oct, Nov
001Nitrogen, ammonia total [as N]MO AVG = 2800 lb/d Apr
001Nitrogen, ammonia total [as N]MO AVG = 1100 lb/d May, Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MO AVG report only Jan, Feb, Mar, Dec
001Nitrogen, ammonia total [as N]DAILY MX report only Oct, Nov
001Nitrogen, ammonia total [as N]DAILY MX report only Apr
001Nitrogen, ammonia total [as N]DAILY MX report only May, Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]DAILY MX report only Jan, Feb, Mar, Dec
001Phosphorus, total [as P]MO AVG = .7 mg/L all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG = 140 lb/d all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG = .6 mg/L Apr, May, Jun, Jul, Aug, Sep
001Phosphorus, total [as P]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep
001Phosphorus, total [as P]MO AVG = 120 lb/d Apr, May, Jun, Jul, Aug, Sep
001Phosphorus, total [as P]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualDAILY MX <= 38 ug/L all year
001Perfluorooctanoic acid (PFOA)MO AVG report only all year
001Perfluorooctanoic acid (PFOA)DAILY MX report only all year
001Perfluorooctanoic acid (PFOA)MO AVG report only all year
001Perfluorooctanoic acid (PFOA)DAILY MX report only all year
001PerfluorooctanesulfonateMO AVG report only all year
001PerfluorooctanesulfonateDAILY MX report only all year
001PerfluorooctanesulfonateMO AVG report only all year
001PerfluorooctanesulfonateDAILY MX report only all year
001Mercury, total [as Hg]MO AVG report only all year
001Mercury, total [as Hg]DAILY MX report only all year
001Mercury, total [as Hg]MO AVG report only all year
001Mercury, total [as Hg]DAILY MX report only all year
001Coliform, fecal generalMO GEOMN <= 200 #/100mL all year
001Coliform, fecal general7 DA GEO <= 400 #/100mL all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX = 25 mg/L all year
001BOD, carbonaceous [5 day, 20 C]7 DA AVG = 40 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG = 5000 lb/d all year
001BOD, carbonaceous [5 day, 20 C]7 DA AVG = 8000 lb/d all year
001BOD, carb-5 day, 20 deg C, percent removalMINIMUM = 85 % all year
001BOD, carb-5 day, 20 deg C, percent removalDAILY MN report only all year
001Solids, suspended percent removalMINIMUM = 85 % all year
001Solids, suspended percent removalDAILY MN report only all year
SLDSolids, totalMO MIN report only all year
SLDSolids, totalMO AVG report only all year
SLDSolids, totalMO MAX report only all year
SLDArsenic, dry weightMO MIN report only all year
SLDArsenic, dry weightMO AVG report only all year
SLDArsenic, dry weightMO MAX <= 75 mg/kg all year
SLDSelenium, dry weightMO MIN report only all year
SLDSelenium, dry weightMO AVG report only all year
SLDSelenium, dry weightMO MAX <= 100 mg/kg all year
SLDCopper, dry weightMO MIN report only all year
SLDCopper, dry weightMO AVG report only all year
SLDCopper, dry weightMO MAX <= 4300 mg/kg all year
SLDCadmium, dry weightMO MIN report only all year
SLDCadmium, dry weightMO AVG report only all year
SLDCadmium, dry weightMO MAX <= 85 mg/kg all year
SLDNitrogen, total KjeldahlMO MIN report only all year
SLDNitrogen, total KjeldahlMO AVG report only all year
SLDNitrogen, total KjeldahlMO MAX report only all year
SLDMolybdenum, sludge, total, dry weight [as Mo]MO MIN report only all year
SLDMolybdenum, sludge, total, dry weight [as Mo]MO AVG report only all year
SLDMolybdenum, sludge, total, dry weight [as Mo]MO MAX <= 75 mg/kg all year
SLDZinc, sludge, total, dry weight [as Zn]MO MIN report only all year
SLDZinc, sludge, total, dry weight [as Zn]MO AVG report only all year
SLDZinc, sludge, total, dry weight [as Zn]MO MAX <= 7500 mg/kg all year
SLDLead, sludge, total, dry weight [as Pb]MO MIN report only all year
SLDLead, sludge, total, dry weight [as Pb]MO AVG report only all year
SLDLead, sludge, total, dry weight [as Pb]MO MAX <= 840 mg/kg all year
SLDNickel, sludge, total, dry weight [as Ni]MO MIN report only all year
SLDNickel, sludge, total, dry weight [as Ni]MO AVG report only all year
SLDNickel, sludge, total, dry weight [as Ni]MO MAX <= 420 mg/kg all year
SLDNitrogen, sludge, total, dry weight [as N]MO MIN report only all year
SLDNitrogen, sludge, total, dry weight [as N]MO AVG report only all year
SLDNitrogen, sludge, total, dry weight [as N]MO MAX report only all year
SLDMercury, sludge, total, dry weight [as Hg]MO MIN report only all year
SLDMercury, sludge, total, dry weight [as Hg]MO AVG report only all year
SLDMercury, sludge, total, dry weight [as Hg]MO MAX <= 57 mg/kg all year
SLDPotassium, sludge, total, dry weight [as K]MO MIN report only all year
SLDPotassium, sludge, total, dry weight [as K]MO AVG report only all year
SLDPotassium, sludge, total, dry weight [as K]MO MAX report only all year
SLDPhosphorus, sludge, total, dry weight [as P]MO MIN report only all year
SLDPhosphorus, sludge, total, dry weight [as P]MO AVG report only all year
SLDPhosphorus, sludge, total, dry weight [as P]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