NPDES ID: IL0032735
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: 2 effluent violations, 5 permit schedule violations.
Violations
June 30, 2026
Nitrogen, ammonia total [as N]
6% over limit
Discharged 3.18 mg/L against a permitted limit of 3 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2026
Mercury, total [as Hg]
17% over limit
Discharged 0.000014 mg/L against a permitted limit of 0.000012 mg/L (ANNL AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Mercury, total [as Hg]
25% over limit
Discharged 0.000015 mg/L against a permitted limit of 0.000012 mg/L (ANNL AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Mercury, total [as Hg]
25% over limit
Discharged 0.000015 mg/L against a permitted limit of 0.000012 mg/L (ANNL AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
54% over limit
Discharged 12.3 mg/L against a permitted limit of 8 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2026
Mercury, total [as Hg]
33% over limit
Discharged 0.000016 mg/L against a permitted limit of 0.000012 mg/L (ANNL AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (6 days ago)