City of Bay City

NPDES permit MI0022284 · Major POTW · administratively continued, expires 2015-10-01 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2015-10-01 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

9values over a limit
2required values missing, on 2 form(s)
0of 67 forms filed late

Last period with anything received: 2026-07-31. Most often over: Coliform, fecal general (8), Nitrogen, ammonia total [as N] (1).

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 (164)

OutfallParameterStatisticLimitMonths
004Oxygen, dissolved [DO]DAILY MN >= 3 mg/L all year
004pHDAILY MN >= 6.5 SU all year
004pHDAILY MX <= 9 SU all year
004Solids, total suspendedMO AVG <= 30 mg/L all year
004Solids, total suspended7 DA AVG <= 45 mg/L all year
004Solids, total suspendedMO AVG <= 3000 lb/d all year
004Solids, total suspended7 DA AVG <= 4500 lb/d all year
004Nitrogen, ammonia total [as N]MO AVG <= 7.5 mg/L May, Jun, Jul, Aug, Sep
004Nitrogen, ammonia total [as N]DAILY MX report only May, Jun, Jul, Aug, Sep
004Nitrogen, ammonia total [as N]MO AVG <= 750 lb/d May, Jun, Jul, Aug, Sep
004Nitrogen, ammonia total [as N]DAILY MX report only May, Jun, Jul, Aug, Sep
004Phosphorus, total [as P]MO AVG <= 1 mg/L all year
004Phosphorus, total [as P]DAILY MX report only all year
004Phosphorus, total [as P]MO AVG <= 100 lb/d all year
004Phosphorus, total [as P]DAILY MX report only all year
004Copper, total [as Cu]DAILY MX report only Jan, Apr, Jul, Oct
004Copper, total [as Cu]DAILY MX report only Jan, Apr, Jul, Oct
004Polychlorinated biphenyls [PCBs]MO AVG report only all year
004Polychlorinated biphenyls [PCBs]DAILY MX report only all year
004Polychlorinated biphenyls [PCBs]MO AVG report only all year
004Polychlorinated biphenyls [PCBs]DAILY MX report only all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004Mercury, total [as Hg]MO AVG report only Jan, Apr, Jul, Oct
004Mercury, total [as Hg]DAILY MX report only Jan, Apr, Jul, Oct
004Mercury, total [as Hg]MO AVG report only Jan, Apr, Jul, Oct
004Mercury, total [as Hg]DAILY MX report only Jan, Apr, Jul, Oct
004Mercury, total [as Hg]1D <= 5 ng/L Jan, Apr, Jul, Oct
004Mercury, total [as Hg]1D <= .0005 lb/d Jan, Apr, Jul, Oct
004Coliform, fecal generalMO GEOMN <= 200 #/100mL all year
004Coliform, fecal general7 DA GEO <= 400 #/100mL all year
004BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
004BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 40 mg/L all year
004BOD, carbonaceous [5 day, 20 C]MO AVG <= 2500 lb/d all year
004BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 4000 lb/d all year
004BOD, carb-5 day, 20 deg C, percent removalMINIMUM >= 85 % all year
004BOD, carb-5 day, 20 deg C, percent removalDAILY MN report only all year
004Solids, suspended percent removalMINIMUM >= 85 % all year
004Solids, suspended percent removalDAILY MN report only all year
013BOxygen, dissolved [DO]DAILY MN report only all year
013BpHDAILY MN report only all year
013BpHDAILY MX report only all year
013BSolids, total suspendedMO AVG report only all year
013BSolids, total suspendedDAILY MX report only all year
013BNitrogen, ammonia total [as N]MO AVG report only all year
013BNitrogen, ammonia total [as N]DAILY MX report only all year
013BPhosphorus, total [as P]MO AVG report only all year
013BPhosphorus, total [as P]DAILY MX report only all year
013BFlow, in conduit or thru treatment plantMO AVG report only all year
013BFlow, in conduit or thru treatment plantDAILY MX report only all year
013BFlow, in conduit or thru treatment plantMO AVG report only all year
013BFlow, in conduit or thru treatment plantDAILY MX report only all year
013BChlorine, total residualDA report only all year
013BColiform, fecal generalDA <= 1000 #/100mL Jan, Feb, Mar, Apr, Nov, Dec
013BColiform, fecal generalDA <= 400 #/100mL May, Jun, Jul, Aug, Sep, Oct
013BBOD, carbonaceous [5 day, 20 C]MO AVG report only all year
013BBOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
014Oxygen, dissolved [DO]DAILY MN report only all year
014pHDAILY MN report only all year
014pHDAILY MX report only all year
014Solids, total suspendedMO AVG report only all year
014Solids, total suspendedDAILY MX report only all year
014Nitrogen, ammonia total [as N]MO AVG report only all year
014Nitrogen, ammonia total [as N]DAILY MX report only all year
014Phosphorus, total [as P]MO AVG report only all year
014Phosphorus, total [as P]DAILY MX report only all year
014Flow, in conduit or thru treatment plantMO AVG report only all year
014Flow, in conduit or thru treatment plantDAILY MX report only all year
014Flow, in conduit or thru treatment plantMO AVG report only all year
014Flow, in conduit or thru treatment plantDAILY MX report only all year
014Chlorine, total residualDA report only all year
014Coliform, fecal generalDAILY AV <= 400 #/100mL May, Jun, Jul, Aug, Sep, Oct
014BOD, carbonaceous [5 day, 20 C]MO MAX report only all year
014BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
018Oxygen, dissolved [DO]DAILY MN report only all year
018pHDAILY MN report only all year
018pHDAILY MX report only all year
018Solids, total suspendedMO AVG report only all year
018Solids, total suspendedDAILY MX report only all year
018Nitrogen, ammonia total [as N]MO AVG report only all year
018Nitrogen, ammonia total [as N]DAILY MX report only all year
018Phosphorus, total [as P]MO AVG report only all year
018Phosphorus, total [as P]DAILY MX report only all year
018Flow, in conduit or thru treatment plantMO AVG report only all year
018Flow, in conduit or thru treatment plantDAILY MX report only all year
018Flow, in conduit or thru treatment plantMO AVG report only all year
018Flow, in conduit or thru treatment plantDAILY MX report only all year
018Chlorine, total residualDA report only all year
018Chlorine, total residualDAILY MX report only all year
018Coliform, fecal generalDAILY AV <= 400 #/100mL May, Jun, Jul, Aug, Sep, Oct
018BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
018BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
040Oxygen, dissolved [DO]DAILY MN report only all year
040pHDAILY MN report only all year
040pHDAILY MX report only all year
040Solids, total suspendedMX MO AV report only all year
040Solids, total suspendedDAILY MX report only all year
040Nitrogen, ammonia total [as N]MX MO AV report only all year
040Nitrogen, ammonia total [as N]DAILY MX report only all year
040Phosphorus, total [as P]MX MO AV report only all year
040Phosphorus, total [as P]DAILY MX report only all year
040Flow, in conduit or thru treatment plantMX MO AV report only all year
040Flow, in conduit or thru treatment plantDAILY MX report only all year
040Flow, in conduit or thru treatment plantMX MO AV report only all year
040Flow, in conduit or thru treatment plantDAILY MX report only all year
040Chlorine, total residualDAILY AV report only all year
040Coliform, fecal generalDAILY AV <= 400 #/100mL May, Jun, Jul, Aug, Sep, Oct
048Oxygen, dissolved [DO]DAILY MN report only all year
048pHDAILY MN report only all year
048pHDAILY MX report only all year
048Solids, total suspendedMX MO AV report only all year
048Solids, total suspendedDAILY MX report only all year
048Nitrogen, ammonia total [as N]MX MO AV report only all year
048Nitrogen, ammonia total [as N]DAILY MX report only all year
048Phosphorus, total [as P]MX MO AV report only all year
048Phosphorus, total [as P]DAILY MX report only all year
048Flow, in conduit or thru treatment plantMX MO AV report only all year
048Flow, in conduit or thru treatment plantDAILY MX report only all year
048Flow, in conduit or thru treatment plantMX MO AV report only all year
048Flow, in conduit or thru treatment plantDAILY MX report only all year
048Chlorine, total residualDAILY AV report only all year
048Coliform, fecal generalDAILY AV <= 400 #/100mL May, Jun, Jul, Aug, Sep, Oct
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