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.
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
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
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
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
September 30, 2025
Mercury, total [as Hg]
116% over limit
Discharged 0.000054 mg/L against a permitted limit of 0.000025 mg/L (12MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Mercury, total [as Hg]
104% over limit
Discharged 0.000051 mg/L against a permitted limit of 0.000025 mg/L (12MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Mercury, total [as Hg]
100% over limit
Discharged 0.00005 mg/L against a permitted limit of 0.000025 mg/L (12MO AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
2434% over limit
Discharged 0.96300005 mg/L against a permitted limit of 0.038 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
June 30, 2025
Mercury, total [as Hg]
104% over limit
Discharged 0.000051 mg/L against a permitted limit of 0.000025 mg/L (12MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Mercury, total [as Hg]
96% over limit
Discharged 0.000049 mg/L against a permitted limit of 0.000025 mg/L (12MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Mercury, total [as Hg]
88% over limit
Discharged 0.000047 mg/L against a permitted limit of 0.000025 mg/L (12MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
1023% over limit
Discharged 11230 MPN/100mL against a permitted limit of 1000 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2025
Mercury, total [as Hg]
76% over limit
Discharged 0.000044 mg/L against a permitted limit of 0.000025 mg/L (12MO AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Mercury, total [as Hg]
72% over limit
Discharged 0.000043 mg/L against a permitted limit of 0.000025 mg/L (12MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Mercury, total [as Hg]
72% over limit
Discharged 0.000043 mg/L against a permitted limit of 0.000025 mg/L (12MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
10% over limit
Discharged 44 mg/L against a permitted limit of 40 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
7% over limit
Discharged 75 mg/L against a permitted limit of 70 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
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
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
November 30, 2024
Phosphorus, total [as P]
27% over limit
Discharged 1.9 mg/L against a permitted limit of 1.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 3813.59996796 kg/d against a permitted limit of 88075.99925995 kg/d (MO AVG)
DMR, Limited - Overdue
Phosphorus, total [as P]
13% over limit
Discharged 1.7 mg/L against a permitted limit of 1.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 4 mg/L against a permitted limit of 40 mg/L (7 DA AVG)
DMR, Limited - Overdue
August 31, 2024
Chlorine, total residual
91% over limit
Discharged 0.21 mg/L against a permitted limit of 0.11 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)