Gerald R Ford International Airport Authority

NPDES permit MI0055735 · Minor NON-POTW · administratively continued, expires 2025-10-01 · EPA's file as of 2026-09-19

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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

4values over a limit
0required values missing, on 0 form(s)
0of 11 forms filed late

Last period with anything received: 2026-07-31. Most often over: BOD, carbonaceous [5 day, 20 C] (4).

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 (23)

OutfallParameterStatisticLimitMonths
011Oxygen, dissolved [DO]DAILY MN >= 6 mg/L Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
011pHDAILY MN >= 6.5 SU Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
011pHDAILY MX <= 9 SU Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
011Nitrogen, ammonia total [as N]DAILY MX report only Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
011Phosphorus, total [as P]DAILY MX report only Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
011Flow, in conduit or thru treatment plantMO AVG report only all year
011Flow, in conduit or thru treatment plantDAILY MX report only all year
011Acetate, TotalDAILY MX report only all year
011BOD, carbonaceous [5 day, 20 C]DAILY MX report only May
011BOD, carbonaceous [5 day, 20 C]DAILY MX report only Oct
011BOD, carbonaceous [5 day, 20 C]DAILY MX report only Apr
011BOD, carbonaceous [5 day, 20 C]DAILY MX report only Jan, Feb, Dec
011BOD, carbonaceous [5 day, 20 C]DAILY MX report only Nov
011BOD, carbonaceous [5 day, 20 C]DAILY MX <= 3600 lb/d Oct
011BOD, carbonaceous [5 day, 20 C]DAILY MX <= 20000 lb/d Apr
011BOD, carbonaceous [5 day, 20 C]DAILY MX <= 11000 lb/d Jan, Feb, Dec
011BOD, carbonaceous [5 day, 20 C]DAILY MX = 20000 lb/d Nov
011BOD, carbonaceous [5 day, 20 C]DAILY MX report only Mar
011BOD, carbonaceous [5 day, 20 C]DAILY MX <= 11000 lb/d Mar
011BOD, carbonaceous [5 day, 20 C]DAILY MX report only Mar
011BOD, carbonaceous [5 day, 20 C]DAILY MX <= 20000 lb/d Mar
011Chemical oxygen demand [COD]DAILY MX = 3500 mg/L Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
011Outfall 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