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NPDES permit MI0055808 · Major POTW · effective, expires 2027-05-09 · 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.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
2of 15 forms filed late

Last period with anything received: 2026-07-31.

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 (128)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MINIMUM >= 5 mg/L all year
001Oxygen, dissolved [DO]MINIMUM >= 5 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CWKLY AVG report only all year
001BOD, 5-day, 20 deg. CWKLY AVG report only all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CWKLY AVG report only all year
001BOD, 5-day, 20 deg. CWKLY AVG report only all year
001pHMINIMUM >= 6.5 SU all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001pHMAXIMUM <= 9 SU all year
001pHMINIMUM report only all year
001pHMINIMUM report only all year
001pHMAXIMUM report only all year
001pHMAXIMUM report only all year
001Solids, total suspended30DA AVG <= 30 mg/L Jan, Feb, Mar, Apr, May, Nov, Dec
001Solids, total suspended30DA AVG <= 30 mg/L Jan, Feb, Mar, Apr, May, Nov, Dec
001Solids, total suspended30DA AVG <= 20 mg/L Jun, Jul, Aug, Sep, Oct
001Solids, total suspended30DA AVG <= 20 mg/L Jun, Jul, Aug, Sep, Oct
001Solids, total suspended7 DA AVG <= 45 mg/L Jan, Feb, Mar, Apr, May, Nov, Dec
001Solids, total suspended7 DA AVG <= 45 mg/L Jan, Feb, Mar, Apr, May, Nov, Dec
001Solids, total suspended7 DA AVG <= 30 mg/L Jun, Jul, Aug, Sep, Oct
001Solids, total suspended7 DA AVG <= 30 mg/L Jun, Jul, Aug, Sep, Oct
001Solids, total suspended30DA AVG <= 600 lb/d Jan, Feb, Mar, Apr, May, Nov, Dec
001Solids, total suspended30DA AVG <= 600 lb/d Jan, Feb, Mar, Apr, May, Nov, Dec
001Solids, total suspended30DA AVG <= 400 lb/d Jun, Jul, Aug, Sep, Oct
001Solids, total suspended30DA AVG <= 400 lb/d Jun, Jul, Aug, Sep, Oct
001Solids, total suspended7 DA AVG <= 900 lb/d Jan, Feb, Mar, Apr, May, Nov, Dec
001Solids, total suspended7 DA AVG <= 900 lb/d Jan, Feb, Mar, Apr, May, Nov, Dec
001Solids, total suspended7 DA AVG <= 600 lb/d Jun, Jul, Aug, Sep, Oct
001Solids, total suspended7 DA AVG <= 600 lb/d Jun, Jul, Aug, Sep, Oct
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedWKLY AVG report only all year
001Solids, total suspendedWKLY AVG report only all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedWKLY AVG report only all year
001Solids, total suspendedWKLY AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG <= .5 mg/L Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= .5 mg/L Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 2 mg/L Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 2 mg/L Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 10 lb/d Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 10 lb/d Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 40 lb/d Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 40 lb/d Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]30DA AVG report only Jan, Feb, Mar, Apr, May, Nov, Dec
001Nitrogen, ammonia total [as N]30DA AVG report only Jan, Feb, Mar, Apr, May, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX report only Jan, Feb, Mar, Apr, May, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX report only Jan, Feb, Mar, Apr, May, Nov, Dec
001Nitrogen, ammonia total [as N]30DA AVG report only Jan, Feb, Mar, Apr, May, Nov, Dec
001Nitrogen, ammonia total [as N]30DA AVG report only Jan, Feb, Mar, Apr, May, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX report only Jan, Feb, Mar, Apr, May, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX report only Jan, Feb, Mar, Apr, May, Nov, Dec
001Phosphorus, total [as P]MO AVG <= 1 mg/L all year
001Phosphorus, total [as P]MO AVG <= 1 mg/L all year
001Phosphorus, total [as P]7 DA AVG <= 2 mg/L all year
001Phosphorus, total [as P]7 DA AVG <= 2 mg/L all year
001Phosphorus, total [as P]MO AVG <= 20 lb/d all year
001Phosphorus, total [as P]MO AVG <= 20 lb/d all year
001Phosphorus, total [as P]7 DA AVG <= 40 lb/d all year
001Phosphorus, total [as P]7 DA AVG <= 40 lb/d all year
001Selenium, total [as Se]30DA AVG <= 32 ug/L all year
001Selenium, total [as Se]30DA AVG <= 32 ug/L all year
001Selenium, total [as Se]DAILY MX report only all year
001Selenium, total [as Se]DAILY MX report only all year
001Selenium, total [as Se]30DA AVG report only all year
001Selenium, total [as Se]30DA AVG report only all year
001Selenium, total [as Se]DAILY MX <= .64 lb/d all year
001Selenium, total [as Se]DAILY MX <= .64 lb/d all year
001Flow, in conduit or thru treatment plantMO AVG 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
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001E. coliMO AVG <= 126 #/100mL all year
001E. coliMO AVG <= 126 #/100mL all year
001E. coliDAILY MX <= 410 #/100mL all year
001E. coliDAILY MX <= 410 #/100mL all year
001Mercury, total [as Hg]QRTR AVG report only all year
001Mercury, total [as Hg]QRTR AVG report only all year
001Mercury, total [as Hg]QB report only all year
001Mercury, total [as Hg]QB report only all year
001Mercury, total [as Hg]QRTR AVG report only all year
001Mercury, total [as Hg]QRTR AVG report only all year
001Mercury, total [as Hg]QB report only all year
001Mercury, total [as Hg]QB report only all year
001Mercury, total [as Hg]QB report only all year
001Mercury, total [as Hg]QB report only all year
001Mercury, total [as Hg]ROLL AVG <= 2 ng/L all year
001Mercury, total [as Hg]ROLL AVG <= 2 ng/L all year
001Mercury, total [as Hg]ROLL AVG <= .00003 lb/d all year
001Mercury, total [as Hg]ROLL AVG <= .00003 lb/d all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L Jan, Feb, Mar, Apr, May, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L Jan, Feb, Mar, Apr, May, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 4 mg/L Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 4 mg/L Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 40 mg/L Jan, Feb, Mar, Apr, May, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 40 mg/L Jan, Feb, Mar, Apr, May, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 10 mg/L Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 10 mg/L Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 500 lb/d Jan, Feb, Mar, Apr, May, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 500 lb/d Jan, Feb, Mar, Apr, May, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 80 lb/d Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 80 lb/d Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 800 lb/d Jan, Feb, Mar, Apr, May, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 800 lb/d Jan, Feb, Mar, Apr, May, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 200 lb/d Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 200 lb/d Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG report only all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG report only all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG report only all year
001BOD, carb-5 day, 20 deg C, percent removalMN % RMV >= 85 % Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001BOD, carb-5 day, 20 deg C, percent removalMN % RMV >= 85 % Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001Solids, suspended percent removalMN VALUE >= 85 % Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001Solids, suspended percent removalMN VALUE >= 85 % Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001Outfall observation,visual, y/n responseVALUE report only all year
001Outfall observation,visual, y/n responseVALUE 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