GLWA WRRF
NPDES ID: MI0022802
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.
This quarter: 1 effluent violation, 13 single-event violations, 1 permit schedule violation.
Violations
April 30, 2026
Mercury, total [as Hg]
108% over limit
Discharged 0.000052 mg/L against a permitted limit of 0.000025 mg/L (12MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Mercury, total [as Hg]
108% over limit
Discharged 0.000052 mg/L against a permitted limit of 0.000025 mg/L (12MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
73% over limit
Discharged 690 MPN/100mL against a permitted limit of 400 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Chlorine, total residual
200% over limit
Discharged 0.33 mg/L against a permitted limit of 0.11 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (5 days ago)