NPDES ID: IL0075671
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.
Violations
June 30, 2026
Mercury, total [as Hg]
222% over limit
Discharged 0.0000386 mg/L against a permitted limit of 0.000012 mg/L (ANNL AVG)
DMR, Limited - Numeric Violation
May 31, 2026
Mercury, total [as Hg]
48% over limit
Discharged 0.0000177 mg/L against a permitted limit of 0.000012 mg/L (ANNL AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Mercury, total [as Hg]
82% over limit
Discharged 0.0000218 mg/L against a permitted limit of 0.000012 mg/L (ANNL AVG)
DMR, Limited - Numeric Violation
Mercury, total [as Hg]
72% over limit
Discharged 0.0000206 mg/L against a permitted limit of 0.000012 mg/L (ANNL AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 6.23 SU against a permitted limit of 6.5 SU (MO MIN)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (5 hours ago)