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NPDES permit MI0003166 · Major NON-POTW · administratively continued, expires 2025-10-01 · 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 2025-10-01 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

8values over a limit
0required values missing, on 0 form(s)
0of 60 forms filed late

Last period with anything received: 2026-08-31. Most often over: Solids, total suspended (5), BOD, 5-day, 20 deg. C (3).

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 (161)

OutfallParameterStatisticLimitMonths
004Temperature, water deg. fahrenheitMO AVG report only all year
004Temperature, water deg. fahrenheitDAILY MX report only all year
004Temperature, water deg. fahrenheitMO AVG report only all year
004Temperature, water deg. fahrenheitDAILY MX report only all year
004pHDAILY MN = 6.5 SU all year
004pHDAILY MX = 9 SU all year
004Solids, total suspendedMO AVG report only all year
004Solids, total suspendedDAILY MX report only all year
004Solids, total suspendedMO AVG report only all year
004Solids, total suspendedDAILY 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
004Outfall observation,visual, y/n responseVALUE report only all year
005Temperature, water deg. fahrenheitMO AVG report only all year
005Temperature, water deg. fahrenheitDAILY MX report only all year
005Temperature, water deg. fahrenheitMO AVG report only all year
005Temperature, water deg. fahrenheitDAILY MX report only all year
005BOD, 5-day, 20 deg. CMO AVG <= 37 mg/L all year
005BOD, 5-day, 20 deg. CDAILY MX <= 140 mg/L all year
005BOD, 5-day, 20 deg. CMO AVG report only all year
005BOD, 5-day, 20 deg. CDAILY MX report only all year
005BOD, 5-day, 20 deg. CMO MAX <= 2200 lb/qtr all year
005BOD, 5-day, 20 deg. CDAILY MX <= 4600 lb/qtr all year
005BOD, 5-day, 20 deg. CMO MAX <= 2600 lb/qtr all year
005BOD, 5-day, 20 deg. CDAILY MX <= 5300 lb/qtr all year
005BOD, 5-day, 20 deg. CMO MAX <= 2900 lb/qtr all year
005BOD, 5-day, 20 deg. CDAILY MX <= 6000 lb/qtr all year
005BOD, 5-day, 20 deg. CMO MAX <= 3400 lb/qtr all year
005BOD, 5-day, 20 deg. CDAILY MX <= 6800 lb/qtr all year
005pHDAILY MN >= 6.5 SU all year
005pHDAILY MN >= 6.5 SU all year
005pHDAILY MX <= 9 SU all year
005pHDAILY MX <= 9 SU all year
005Solids, total suspendedMO AVG <= 27 mg/L all year
005Solids, total suspendedDAILY MX <= 88 mg/L all year
005Solids, total suspendedMO AVG report only all year
005Solids, total suspendedDAILY MX report only all year
005Solids, total suspendedMO MAX <= 3700 lb/qtr all year
005Solids, total suspendedDAILY MX <= 7400 lb/qtr all year
005Solids, total suspendedMO MAX <= 4300 lb/qtr all year
005Solids, total suspendedDAILY MX <= 8600 lb/qtr all year
005Solids, total suspendedMO MAX <= 4800 lb/qtr all year
005Solids, total suspendedDAILY MX <= 9700 lb/qtr all year
005Solids, total suspendedMO MAX <= 5500 lb/qtr all year
005Solids, total suspendedDAILY MX <= 11000 lb/qtr all year
005Nitrogen, ammonia total [as N]MO AVG <= 4.9 mg/L all year
005Nitrogen, ammonia total [as N]DAILY MX <= 10 mg/L all year
005Nitrogen, ammonia total [as N]MO AVG report only all year
005Nitrogen, ammonia total [as N]DAILY MX report only all year
005Phosphorus, total [as P]MO AVG <= 1 mg/L all year
005Phosphorus, total [as P]DAILY MX report only all year
005Phosphorus, total [as P]MO AVG <= 67 lb/qtr all year
005Phosphorus, total [as P]DAILY MX report only all year
005Toxicity, choice of speciesMO AVG report only all year
005Toxicity, choice of speciesVALUE report only all year
005PhenolsMO AVG <= .015 mg/L all year
005PhenolsDAILY MX <= .026 mg/L all year
005PhenolsMO AVG report only all year
005PhenolsDAILY MX report only all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
005Chlorine, total residualDAILY MX <= 38 ug/L all year
005Production divided by days operated mo.MO AVG report only all year
005Production divided by days operated mo.DAILY MX report only all year
005Toxicity [acute], Ceriodaphnia dubiaDAILY MX <= 1 tox acute all year
005Mercury, total [as Hg]MO AVG report only all year
005Mercury, total [as Hg]DAILY MX report only all year
005Mercury, total [as Hg]MO AVG report only all year
005Mercury, total [as Hg]DAILY MX report only all year
005Mercury, total [as Hg]1D <= 7 ng/L all year
005Mercury, total [as Hg]1D <= .00047 lb/qtr all year
005p-CresolMO AVG <= .014 mg/L all year
005p-CresolDAILY MX <= .025 mg/L all year
005p-CresolMO AVG report only all year
005p-CresolDAILY MX report only all year
005Benzoic acids, totalMO AVG <= .071 mg/L all year
005Benzoic acids, totalDAILY MX <= .12 mg/L all year
005Benzoic acids, totalMO AVG report only all year
005Benzoic acids, totalDAILY MX report only all year
005.alpha.-TerpineolMO AVG <= .016 mg/L all year
005.alpha.-TerpineolDAILY MX <= .033 mg/L all year
005.alpha.-TerpineolMO AVG report only all year
005.alpha.-TerpineolDAILY MX report only all year
005Outfall observation,visual, y/n responseVALUE report only all year
005TU Static 24 Hr Acute Pimephales promelasDAILY MX <= 1 tox acute all year
005Static 48 Hr Chronic Pimphales PromelasMO AVG report only all year
005Static 48 Hr Chronic Pimphales PromelasVALUE report only all year
006Temperature, water deg. fahrenheitMO AVG report only all year
006Temperature, water deg. fahrenheitDAILY MX report only all year
006Temperature, water deg. fahrenheitMO AVG report only all year
006Temperature, water deg. fahrenheitDAILY MX report only all year
006BOD, 5-day, 20 deg. CMO AVG <= 37 mg/L all year
006BOD, 5-day, 20 deg. CDAILY MX <= 140 mg/L all year
006BOD, 5-day, 20 deg. CMO AVG report only all year
006BOD, 5-day, 20 deg. CDAILY MX report only all year
006BOD, 5-day, 20 deg. CMO MAX <= 2200 lb/qtr all year
006BOD, 5-day, 20 deg. CDAILY MX <= 4600 lb/qtr all year
006BOD, 5-day, 20 deg. CMO MAX <= 2600 lb/qtr all year
006BOD, 5-day, 20 deg. CDAILY MX <= 5300 lb/qtr all year
006BOD, 5-day, 20 deg. CMO MAX <= 2900 lb/qtr all year
006BOD, 5-day, 20 deg. CDAILY MX <= 6000 lb/qtr all year
006BOD, 5-day, 20 deg. CMO MAX <= 3400 lb/qtr all year
006BOD, 5-day, 20 deg. CDAILY MX <= 6800 lb/qtr all year
006pHDAILY MN >= 6.5 SU all year
006pHDAILY MN >= 6.5 SU all year
006pHDAILY MX <= 9 SU all year
006pHDAILY MX <= 9 SU all year
006Solids, total suspendedMO AVG <= 27 mg/L all year
006Solids, total suspendedDAILY MX <= 88 mg/L all year
006Solids, total suspendedMO AVG report only all year
006Solids, total suspendedDAILY MX report only all year
006Solids, total suspendedMO MAX <= 3700 lb/qtr all year
006Solids, total suspendedDAILY MX <= 7400 lb/qtr all year
006Solids, total suspendedMO MAX <= 4300 lb/qtr all year
006Solids, total suspendedDAILY MX <= 8600 lb/qtr all year
006Solids, total suspendedMO MAX <= 4800 lb/qtr all year
006Solids, total suspendedDAILY MX <= 9700 lb/qtr all year
006Solids, total suspendedMO MAX <= 5500 lb/qtr all year
006Solids, total suspendedDAILY MX <= 11000 lb/qtr all year
006Phosphorus, total [as P]MO AVG <= 1 mg/L all year
006Phosphorus, total [as P]DAILY MX report only all year
006Phosphorus, total [as P]MO AVG <= 67 lb/qtr all year
006Phosphorus, total [as P]DAILY MX report only all year
006Toxicity, choice of speciesMO AVG report only all year
006Toxicity, choice of speciesVALUE report only all year
006PhenolsMO AVG <= .015 mg/L all year
006PhenolsDAILY MX <= .026 mg/L all year
006PhenolsMO AVG report only all year
006PhenolsDAILY MX report only all year
006Flow, in conduit or thru treatment plantMO AVG report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
006Chlorine, total residualDAILY MX <= 38 ug/L all year
006Nitrogen, ammonia [NH3-N]MO AVG <= 4.9 mg/L all year
006Nitrogen, ammonia [NH3-N]DAILY MX <= 10 mg/L all year
006Nitrogen, ammonia [NH3-N]MO AVG report only all year
006Nitrogen, ammonia [NH3-N]DAILY MX report only all year
006Production divided by days operated mo.MO AVG report only all year
006Production divided by days operated mo.DAILY MX report only all year
006Toxicity [acute], Ceriodaphnia dubiaDAILY MX <= 1 tox acute all year
006Mercury, total [as Hg]MO AVG report only all year
006Mercury, total [as Hg]DAILY MX report only all year
006Mercury, total [as Hg]MO AVG report only all year
006Mercury, total [as Hg]DAILY MX report only all year
006Mercury, total [as Hg]1D <= 7 ng/L all year
006Mercury, total [as Hg]1D <= .00047 lb/qtr all year
006p-CresolMO AVG <= .014 mg/L all year
006p-CresolDAILY MX <= .025 mg/L all year
006p-CresolMO AVG report only all year
006p-CresolDAILY MX report only all year
006Benzoic acids, totalMO AVG <= .071 mg/L all year
006Benzoic acids, totalDAILY MX <= .12 mg/L all year
006Benzoic acids, totalMO AVG report only all year
006Benzoic acids, totalDAILY MX report only all year
006.alpha.-TerpineolMO AVG <= .016 mg/L all year
006.alpha.-TerpineolDAILY MX <= .033 mg/L all year
006.alpha.-TerpineolMO AVG report only all year
006.alpha.-TerpineolDAILY MX report only all year
006Outfall observation,visual, y/n responseVALUE report only all year
006TU Static 24 Hr Acute Pimephales promelasDAILY MX <= 1 tox acute all year
006Static 48 Hr Chronic Pimphales PromelasMO AVG report only all year
006Static 48 Hr Chronic Pimphales PromelasVALUE 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