City of Flushing

NPDES permit MI0020281 · Major POTW · effective, expires 2027-10-01 · 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

8values over a limit
0required values missing, on 0 form(s)
0of 12 forms filed late

Last period with anything received: 2026-07-31. Most often over: Coliform, fecal general (7), Nitrogen, ammonia total [as N] (1).

Reporting

Reports are due about 21 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (100)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN >= 6 mg/L Jun, Jul, Aug, Sep
001Oxygen, dissolved [DO]DAILY MN = 4 mg/L Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 20 mg/L Jun, Jul, Aug, Sep
001Solids, total suspendedMO AVG <= 30 mg/L Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001Solids, total suspended7 DA AVG <= 30 mg/L Jun, Jul, Aug, Sep
001Solids, total suspended7 DA AVG <= 45 mg/L Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001Solids, total suspendedMO AVG <= 420 lb/d Jun, Jul, Aug, Sep
001Solids, total suspendedMO AVG <= 640 lb/d Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001Solids, total suspended7 DA AVG <= 640 lb/d Jun, Jul, Aug, Sep
001Solids, total suspended7 DA AVG <= 950 lb/d Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 6.2 mg/L Apr, May
001Nitrogen, ammonia total [as N]MO AVG = .5 mg/L Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MO AVG <= 13 mg/L Jan, Feb, Mar, Dec
001Nitrogen, ammonia total [as N]MO AVG = 7 mg/L Oct, Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 9.2 mg/L Apr, May
001Nitrogen, ammonia total [as N]DAILY MX <= 2 mg/L Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 15 mg/L Jan, Feb, Mar, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 9.7 mg/L Oct, Nov
001Nitrogen, ammonia total [as N]MO AVG <= 130 lb/d Apr, May
001Nitrogen, ammonia total [as N]MO AVG = 10 lb/d Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MO AVG <= 280 lb/d Jan, Feb, Mar, Dec
001Nitrogen, ammonia total [as N]MO AVG = 150 lb/d Oct, Nov
001Nitrogen, ammonia total [as N]7 DA AVG <= 190 lb/d Apr, May
001Nitrogen, ammonia total [as N]7 DA AVG <= 42 lb/d Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]7 DA AVG <= 320 lb/d Jan, Feb, Mar, Dec
001Nitrogen, ammonia total [as N]7 DA AVG <= 200 lb/d Oct, Nov
001Phosphorus, total [as P]MO AVG <= 1 mg/L all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG <= 21 lb/d all year
001Phosphorus, total [as P]DAILY MX report only all year
001Chloride [as Cl]DAILY MX report only all year
001Sulfate, total [as SO4]DAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY 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
001Mercury, total [as Hg]1D <= 3 ng/L all year
001Mercury, total [as Hg]1D <= .000064 lb/d 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]MO AVG <= 19 mg/L Jan, Feb, Mar, Oct, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 18 mg/L Apr, May
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 4 mg/L Jun, Jul, Aug, Sep
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 29 mg/L Jan, Feb, Mar, Oct, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 27 mg/L Apr, May
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 10 mg/L Jun, Jul, Aug, Sep
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 400 lb/d Jan, Feb, Mar, Oct, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 380 lb/d Apr, May
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 85 lb/d Jun, Jul, Aug, Sep
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 610 lb/d Jan, Feb, Mar, Oct, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 570 lb/d Apr, May
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 210 lb/d Jun, Jul, Aug, Sep
001Solids, suspended percent removalMINIMUM >= 85 % Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001Solids, suspended percent removalDAILY MN report only Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
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

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