RESPONSIBLE ENERGY OPERATIONS LLC

NPDES ID: IL0073636

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

May 31, 2026

Solids, total suspended

7% over limit

Discharged 74.7 mg/L against a permitted limit of 70 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

April 30, 2026

Manganese, total [as Mn]

54% over limit

Discharged 1.54 mg/L against a permitted limit of 1 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

March 31, 2026

Manganese, total [as Mn]

51% over limit

Discharged 1.51 mg/L against a permitted limit of 1 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

February 28, 2026

Manganese, total [as Mn]

32% over limit

Discharged 1.32 mg/L against a permitted limit of 1 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

January 31, 2026

Sulfate, total [as SO4]

306% over limit

Discharged 2930 mg/L against a permitted limit of 721 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

November 30, 2025

Manganese, total [as Mn]

117% over limit

Discharged 2.17 mg/L against a permitted limit of 1 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

First flagged

April 14, 2026 (5 months ago)

Last confirmed

September 15, 2026 (5 days ago)