ELKTON WWSL
NPDES ID: MI0057466
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: 1 effluent violation.
Violations
April 30, 2026
Phosphorus, total [as P]
185% over limit
Discharged 2.85 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Phosphorus, total [as P]
126% over limit
Discharged 2.26 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 10.11 SU against a permitted limit of 10 SU (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2025
Coliform, fecal general
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 200 MPN/100mL (MO GEOMN)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Overdue
Arsenic, total [as As]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.011 mg/L (MO AVG)
DMR, Limited - Overdue
Cyanide [A]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0052 mg/L (MO AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Oxygen, dissolved [DO]
0% over limit
Discharged 0 mg/L against a permitted limit of 5 mg/L (DAILY MN)
DMR, Limited - Overdue
Cyanide [A]
0% over limit
Discharged 0 kg/d against a permitted limit of 0.68099999 kg/d (DAILY MX)
DMR, Limited - Overdue
Cyanide [A]
0% over limit
Discharged 0 kg/d against a permitted limit of 0.0908 kg/d (MO AVG)
DMR, Limited - Overdue
Arsenic, total [as As]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (DAILY MN)
DMR, Limited - Overdue
Coliform, fecal general
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 400 MPN/100mL (7 DA GEO)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 kg/d against a permitted limit of 15.88999987 kg/d (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Arsenic, total [as As]
0% over limit
Discharged 0 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 70 mg/L (MO AVG)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 10 SU (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 100 mg/L (7 DA AVG)
DMR, Limited - Overdue
Cyanide [A]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.044 mg/L (DAILY MX)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Arsenic, total [as As]
0% over limit
Discharged 0 kg/d against a permitted limit of 0.1816 kg/d (MO AVG)
DMR, Limited - Overdue
April 30, 2025
Phosphorus, total [as P]
94% over limit
Discharged 1.94 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Coliform, fecal general
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 400 MPN/100mL (7 DA GEO)
DMR, Limited - Overdue
Arsenic, total [as As]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Oxygen, dissolved [DO]
0% over limit
Discharged 0 mg/L against a permitted limit of 5 mg/L (DAILY MN)
DMR, Limited - Overdue
Cyanide [A]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0052 mg/L (MO AVG)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
Cyanide [A]
0% over limit
Discharged 0 kg/d against a permitted limit of 0.0908 kg/d (MO AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Cyanide [A]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.044 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Overdue
Arsenic, total [as As]
0% over limit
Discharged 0 mg/L against a permitted limit of 0.011 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Cyanide [A]
0% over limit
Discharged 0 kg/d against a permitted limit of 0.68099999 kg/d (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 10 SU (DAILY MX)
DMR, Limited - Overdue
Arsenic, total [as As]
0% over limit
Discharged 0 kg/d against a permitted limit of 0.1816 kg/d (MO AVG)
DMR, Limited - Overdue
Coliform, fecal general
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 200 MPN/100mL (MO GEOMN)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (DAILY MN)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 40 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (7 DA AVG)
DMR, Limited - Overdue
Arsenic, total [as As]
0% over limit
Discharged 0 kg/d against a permitted limit of 0 kg/d (DAILY MX)
DMR, Monitor Only - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 kg/d against a permitted limit of 15.88999987 kg/d (MO AVG)
DMR, Limited - Overdue
November 30, 2024
Phosphorus, total [as P]
78% over limit
Discharged 1.78 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)