NPDES ID: IL0062260
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
Violations
February 28, 2026
Solids, total suspended
3% over limit
Discharged 12.4 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Solids, total suspended
10% over limit
Discharged 13.2 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Solids, total suspended
13% over limit
Discharged 13.5 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Solids, total suspended
9% over limit
Discharged 13.1 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Solids, total suspended
32% over limit
Discharged 15.8 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
pH
0% over limit
Discharged 4.9 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
18% over limit
Discharged 14.1 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
43% over limit
Discharged 34.2 mg/L against a permitted limit of 24 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
222% over limit
Discharged 3.546 mg/L against a permitted limit of 1.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
93% over limit
Discharged 69.05339942 kg/d against a permitted limit of 35.8659997 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
697% over limit
Discharged 23.9 mg/L against a permitted limit of 3 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (4 days ago)