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NPDES permit MI0057366 · Minor POTW · expired, expires 2025-04-19 · 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 2025-04-19 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

9values over a limit
0required values missing, on 0 form(s)
1of 15 forms filed late

Last period with anything received: 2026-06-30. Most often over: Solids, total suspended (5), BOD, 5-day, 20 deg. C (3), pH (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 (40)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN >= 4 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 20 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 38 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 58 lb/d all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 8 SU all year
001pHDAILY MN report only all year
001pHDAILY MX report only all year
001Solids, total suspendedMO AVG <= 20 mg/L all year
001Solids, total suspendedWKLY AVG <= 30 mg/L all year
001Solids, total suspendedMO AVG <= 38 lb/d all year
001Solids, total suspendedWKLY AVG <= 58 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedMO AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 15 mg/L May, Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 26 mg/L May, Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 26 mg/L Jan, Feb, Mar, Apr, Oct, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 29 lb/d May, Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 50 lb/d May, Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 50 lb/d Jan, Feb, Mar, Apr, Oct, Nov, Dec
001Phosphorus, total [as P]MO AVG <= 1 mg/L all year
001Phosphorus, total [as P]WKLY AVG <= 2 mg/L all year
001Phosphorus, total [as P]MO AVG <= 1.92 lb/d all year
001Phosphorus, total [as P]WKLY AVG <= 3.8 lb/d all year
001Phosphorus, total [as P]MO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantWKLY AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001E. coli30DA GM <= 126 #/100mL all year
001E. coliDAILY MX <= 410 #/100mL all year
001Mercury, total [as Hg]MO AVG report only all year
001Mercury, total [as Hg]MO AVG report only all year
001Mercury, total [as Hg]Agg Rol Av <= 3 ng/L all year
001Mercury, total [as Hg]Agg Rol Av <= .000058 lb/d all year
001Mercury, total [as Hg]ANNL AVG report only all year
001Mercury, total [as Hg]MO AVG report only all year
001Outfall observation,visual, y/n responseMO AVG 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