LAPEER WWTP
NPDES ID: MI0020460
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
This quarter: 13 effluent violations.
Violations
June 30, 2026
Solids, total suspended
200% over limit
Discharged 90 mg/L against a permitted limit of 30 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
30% over limit
Discharged 343.22399712 kg/d against a permitted limit of 263.31999779 kg/d (7 DA AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
190% over limit
Discharged 58 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
8% over limit
Discharged 215 MPN/100mL against a permitted limit of 200 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
869% over limit
Discharged 42.22199965 kg/d against a permitted limit of 4.35839996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
75% over limit
Discharged 7 mg/L against a permitted limit of 4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1920% over limit
Discharged 10.1 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
35% over limit
Discharged 232.44799805 kg/d against a permitted limit of 172.51999855 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
130% over limit
Discharged 2.3 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
313% over limit
Discharged 71.2779994 kg/d against a permitted limit of 17.25199986 kg/d (7 DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
765% over limit
Discharged 17.3 mg/L against a permitted limit of 2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2026
Nitrogen, ammonia total [as N]
505% over limit
Discharged 12.1 mg/L against a permitted limit of 2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
40% over limit
Discharged 0.7 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000042 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000042 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
August 31, 2025
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.000008 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.000008 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
July 31, 2025
Perfluorooctanesulfonate
0% over limit
Discharged 0.00000104 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanesulfonate
0% over limit
Discharged 0.00000104 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000085 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000085 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 7e-7 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 7e-7 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
June 30, 2025
Nitrogen, ammonia total [as N]
10% over limit
Discharged 2.2 mg/L against a permitted limit of 2 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000062 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000062 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
May 31, 2025
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000053 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 5e-7 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000053 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 5e-7 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
March 31, 2025
Perfluorooctanesulfonate
0% over limit
Discharged 2.1e-7 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 2.8e-7 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000055 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000055 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 2.8e-7 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanesulfonate
0% over limit
Discharged 2.1e-7 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
February 28, 2025
Perfluorooctanesulfonate
0% over limit
Discharged 1.1e-7 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000056 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 2.4e-7 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 2.4e-7 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
Perfluorooctanesulfonate
0% over limit
Discharged 1.1e-7 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000056 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
January 31, 2025
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000027 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000027 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
December 31, 2024
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000057 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000057 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
November 30, 2024
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 2.7e-7 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000082 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Perfluorooctanesulfonate
0% over limit
Discharged 1.7e-7 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 2.7e-7 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000082 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanesulfonate
0% over limit
Discharged 1.7e-7 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
October 31, 2024
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000034 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000034 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
September 30, 2024
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000064 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanesulfonate
0% over limit
Discharged 2.9e-7 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
Perfluorooctanesulfonate
0% over limit
Discharged 2.9e-7 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 2.5e-7 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000064 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 2.5e-7 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
August 31, 2024
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000073 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanesulfonate
0% over limit
Discharged 4.9e-7 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 0.0000073 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 3.7e-7 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
Perfluorooctanoic acid (PFOA)
0% over limit
Discharged 3.7e-7 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Perfluorooctanesulfonate
0% over limit
Discharged 4.9e-7 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (12 hours ago)