City of Dearborn

NPDES permit MI0025542 · Minor 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

0values over a limit
0required values missing, on 0 form(s)
0of 33 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 (45)

OutfallParameterStatisticLimitMonths
106Oxygen, dissolved [DO]DAILY MN report only all year
106BOD, 5-day, 20 deg. CDAILY MX report only all year
106pHDAILY MN report only all year
106pHDAILY MX report only all year
106Solids, total suspendedDAILY MX report only all year
106Nitrogen, ammonia total [as N]DAILY MX report only all year
106Phosphorus, total [as P]DAILY MX report only all year
106Flow, in conduit or thru treatment plantMO AVG report only all year
106Flow, in conduit or thru treatment plantDAILY MX report only all year
106Flow, in conduit or thru treatment plantMO AVG report only all year
106Flow, in conduit or thru treatment plantDAILY MX report only all year
106Chlorine, total residualAH report only all year
106Chlorine, total residualDAILY MX report only all year
106Coliform, fecal generalDAILY MX <= 1000 #/100mL Jan, Feb, Mar, Apr, Nov, Dec
106Coliform, fecal generalDAILY MX <= 400 #/100mL May, Jun, Jul, Aug, Sep, Oct
108Oxygen, dissolved [DO]DAILY MN report only all year
108BOD, 5-day, 20 deg. CDAILY MX report only all year
108pHDAILY MN report only all year
108pHDAILY MX report only all year
108Solids, total suspendedDAILY MX report only all year
108Nitrogen, ammonia total [as N]DAILY MX report only all year
108Phosphorus, total [as P]DAILY MX report only all year
108Flow, in conduit or thru treatment plantMO AVG report only all year
108Flow, in conduit or thru treatment plantDAILY MX report only all year
108Flow, in conduit or thru treatment plantMO AVG report only all year
108Flow, in conduit or thru treatment plantDAILY MX report only all year
108Chlorine, total residualAH report only all year
108Chlorine, total residualDAILY MX report only all year
108Coliform, fecal generalDAILY MX <= 400 #/100mL May, Jun, Jul, Aug, Sep, Oct
108Coliform, fecal generalDAILY MX <= 1000 #/100mL Jan, Feb, Mar, Apr, Nov, Dec
117Oxygen, dissolved [DO]DAILY MN report only all year
117BOD, 5-day, 20 deg. CDAILY MX report only all year
117pHDAILY MN report only all year
117pHDAILY MX report only all year
117Solids, total suspendedDAILY MX report only all year
117Nitrogen, ammonia total [as N]DAILY MX report only all year
117Phosphorus, total [as P]DAILY MX report only all year
117Flow, in conduit or thru treatment plantMO AVG report only all year
117Flow, in conduit or thru treatment plantDAILY MX report only all year
117Flow, in conduit or thru treatment plantMO AVG report only all year
117Flow, in conduit or thru treatment plantDAILY MX report only all year
117Chlorine, total residualAH report only all year
117Chlorine, total residualDAILY MX report only all year
117Coliform, fecal generalDAILY MX <= 400 #/100mL May, Jun, Jul, Aug, Sep, Oct
117Coliform, fecal generalDAILY MX <= 1000 #/100mL Jan, Feb, Mar, Apr, Nov, Dec

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