KNIGHT HAWK COAL LLC

NPDES ID: IL0080064

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

Solids, total suspended

57% over limit

Discharged 55 mg/L against a permitted limit of 35 mg/L (30DA AVG)

DMR, Limited - Numeric Violation

March 31, 2026

Solids, total suspended

60% over limit

Discharged 56 mg/L against a permitted limit of 35 mg/L (30DA AVG)

DMR, Limited - Numeric Violation

November 30, 2025

Solids, total suspended

37% over limit

Discharged 48 mg/L against a permitted limit of 35 mg/L (30DA AVG)

DMR, Limited - Numeric Violation

First flagged

April 14, 2026 (4 months ago)

Last confirmed

August 15, 2026 (5 hours ago)