GERALD R FORD INTL AIRPORT-GR
NPDES ID: MI0055735
X — SNC: Effluent violation (non-monthly average limit)
The facility discharged more of a pollutant than its permit allows, measured over a period other than a monthly average.
Violations
March 31, 2026
BOD, carbonaceous [5 day, 20 C]
69% over limit
Discharged 8437.5899291 kg/d against a permitted limit of 4993.99995804 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2026
BOD, carbonaceous [5 day, 20 C]
142% over limit
Discharged 12101.82389832 kg/d against a permitted limit of 4993.99995804 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2026
BOD, carbonaceous [5 day, 20 C]
21% over limit
Discharged 6048.18794918 kg/d against a permitted limit of 4993.99995804 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
BOD, carbonaceous [5 day, 20 C]
118% over limit
Discharged 10884.19590855 kg/d against a permitted limit of 4993.99995804 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2025
Oxygen, dissolved [DO]
3% over limit
Discharged 5.8 mg/L against a permitted limit of 6 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
February 28, 2025
BOD, carbonaceous [5 day, 20 C]
435% over limit
Discharged 26733.78977537 kg/d against a permitted limit of 4993.99995804 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)