KNIGHT HAWK COAL LLC — NPDES permit IL0072656: limits, due date and EPA's record

NPDES permit IL0072656 · Minor NON-POTW · administratively continued, expires 2019-02-28 · EPA's file as of 2026-09-19

This permit expired on 2019-02-28 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

EPA's record, 2025-09-01 to 2026-08-31

Last period with anything received: 2026-06-30. Most often over: Sulfate, total [as SO4] (1), Solids, total suspended (1).

Reporting

Reports are due about 25 days after each monitoring period ends (the most common figure among IL permits in EPA's filings — check your permit).

Limits in force (279)

Outfall	Parameter	Statistic	Limit	Months
006	pH	QC	>= 6 SU	all year
006	pH	MINIMUM	>= 6.5 SU	all year
006	pH	MINIMUM	>= 6.5 SU	all year
006	pH	MINIMUM	>= 6.5 SU	all year
006	pH	QC	>= 6 SU	all year
006	pH	MINIMUM	>= 6.5 SU	all year
006	pH	MINIMUM	>= 6.5 SU	all year
006	pH	MINIMUM	>= 6.5 SU	all year
006	pH	QB	<= 9 SU	all year
006	pH	MAXIMUM	<= 9 SU	all year
006	pH	MAXIMUM	<= 9 SU	all year
006	pH	MAXIMUM	<= 9 SU	all year
006	pH	QB	<= 9 SU	all year
006	pH	MAXIMUM	<= 9 SU	all year
006	pH	MAXIMUM	<= 9 SU	all year
006	pH	MAXIMUM	<= 9 SU	all year
006	Alkalinity, total [as CaCO3]	DAILY MX	report only	all year
006	Alkalinity, total [as CaCO3]	DAILY MX	report only	all year
006	Alkalinity, total [as CaCO3]	DAILY MX	report only	all year
006	Alkalinity, total [as CaCO3]	DAILY MX	report only	all year
006	Alkalinity, total [as CaCO3]	DAILY MX	report only	all year
006	Alkalinity, total [as CaCO3]	DAILY MX	report only	all year
006	Acidity, total [as CaCO3]	DAILY MX	report only	all year
006	Acidity, total [as CaCO3]	DAILY MX	report only	all year
006	Acidity, total [as CaCO3]	DAILY MX	report only	all year
006	Acidity, total [as CaCO3]	DAILY MX	report only	all year
006	Acidity, total [as CaCO3]	DAILY MX	report only	all year
006	Acidity, total [as CaCO3]	DAILY MX	report only	all year
006	Solids, total suspended	30DA AVG	<= 35 mg/L	all year
006	Solids, total suspended	30DA AVG	<= 35 mg/L	all year
006	Solids, total suspended	30DA AVG	<= 35 mg/L	all year
006	Solids, total suspended	30DA AVG	<= 35 mg/L	all year
006	Solids, total suspended	30DA AVG	<= 35 mg/L	all year
006	Solids, total suspended	30DA AVG	<= 35 mg/L	all year
006	Solids, total suspended	DAILY MX	<= 70 mg/L	all year
006	Solids, total suspended	DAILY MX	<= 70 mg/L	all year
006	Solids, total suspended	DAILY MX	<= 70 mg/L	all year
006	Solids, total suspended	DAILY MX	<= 70 mg/L	all year
006	Solids, total suspended	DAILY MX	<= 70 mg/L	all year
006	Solids, total suspended	DAILY MX	<= 70 mg/L	all year
006	Solids, settleable	QB	<= .5 mL/L	all year
006	Hardness, total [as CaCO3]	QB	report only	all year
006	Hardness, total [as CaCO3]	DAILY MX	report only	all year
006	Hardness, total [as CaCO3]	DAILY MX	report only	all year
006	Hardness, total [as CaCO3]	DAILY MX	report only	all year
006	Hardness, total [as CaCO3]	QB	report only	all year
006	Hardness, total [as CaCO3]	DAILY MX	report only	all year
006	Hardness, total [as CaCO3]	DAILY MX	report only	all year
006	Hardness, total [as CaCO3]	DAILY MX	report only	all year
006	Chloride [as Cl]	QB	<= 500 mg/L	all year
006	Chloride [as Cl]	DAILY MX	<= 500 mg/L	all year
006	Chloride [as Cl]	DAILY MX	<= 500 mg/L	all year
006	Chloride [as Cl]	DAILY MX	<= 500 mg/L	all year
006	Chloride [as Cl]	QB	<= 500 mg/L	all year
006	Chloride [as Cl]	DAILY MX	<= 500 mg/L	all year
006	Chloride [as Cl]	DAILY MX	<= 500 mg/L	all year
006	Chloride [as Cl]	DAILY MX	<= 500 mg/L	all year
006	Sulfate, total [as SO4]	QB	<= 2000 mg/L	all year
006	Sulfate, total [as SO4]	DAILY MX	<= 2000 mg/L	all year
006	Sulfate, total [as SO4]	DAILY MX	<= 2000 mg/L	all year
006	Sulfate, total [as SO4]	DAILY MX	<= 2000 mg/L	all year
006	Sulfate, total [as SO4]	QB	<= 2000 mg/L	all year
006	Sulfate, total [as SO4]	DAILY MX	<= 2000 mg/L	all year
006	Sulfate, total [as SO4]	DAILY MX	<= 2000 mg/L	all year
006	Sulfate, total [as SO4]	DAILY MX	<= 2000 mg/L	all year
006	Iron, total [as Fe]	30DA AVG	<= 3.5 mg/L	all year
006	Iron, total [as Fe]	30DA AVG	<= 3.5 mg/L	all year
006	Iron, total [as Fe]	30DA AVG	<= 3.5 mg/L	all year
006	Iron, total [as Fe]	30DA AVG	<= 3.5 mg/L	all year
006	Iron, total [as Fe]	30DA AVG	<= 3.5 mg/L	all year
006	Iron, total [as Fe]	30DA AVG	<= 3.5 mg/L	all year
006	Iron, total [as Fe]	DAILY MX	<= 7 mg/L	all year
006	Iron, total [as Fe]	DAILY MX	<= 7 mg/L	all year
006	Iron, total [as Fe]	DAILY MX	<= 7 mg/L	all year
006	Iron, total [as Fe]	DAILY MX	<= 7 mg/L	all year
006	Iron, total [as Fe]	DAILY MX	<= 7 mg/L	all year
006	Iron, total [as Fe]	DAILY MX	<= 7 mg/L	all year
006	Manganese, total [as Mn]	30DA AVG	<= 2 mg/L	all year
006	Manganese, total [as Mn]	30DA AVG	<= 2 mg/L	all year
006	Manganese, total [as Mn]	30DA AVG	<= 2 mg/L	all year
006	Manganese, total [as Mn]	30DA AVG	<= 2 mg/L	all year
006	Manganese, total [as Mn]	30DA AVG	<= 2 mg/L	all year
006	Manganese, total [as Mn]	30DA AVG	<= 2 mg/L	all year
006	Manganese, total [as Mn]	DAILY MX	<= 1 mg/L	all year
006	Manganese, total [as Mn]	DAILY MX	<= 1 mg/L	all year
006	Manganese, total [as Mn]	DAILY MX	<= 1 mg/L	all year
006	Manganese, total [as Mn]	DAILY MX	<= 1 mg/L	all year
006	Manganese, total [as Mn]	DAILY MX	<= 1 mg/L	all year
006	Manganese, total [as Mn]	DAILY MX	<= 1 mg/L	all year
006	Manganese, total [as Mn]	DAILY MX	<= 4 mg/L	all year
006	Manganese, total [as Mn]	DAILY MX	<= 4 mg/L	all year
006	Manganese, total [as Mn]	DAILY MX	<= 4 mg/L	all year
006	Manganese, total [as Mn]	DAILY MX	<= 4 mg/L	all year
006	Manganese, total [as Mn]	DAILY MX	<= 4 mg/L	all year
006	Manganese, total [as Mn]	DAILY MX	<= 4 mg/L	all year
006	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
006	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
006	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
006	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
006	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
006	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
006	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
006	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
006	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
006	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
006	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
006	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
006	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
006	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
006	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
006	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
006	Mercury, total [as Hg]	DAILY MX	report only	all year
006	Mercury, total [as Hg]	DAILY MX	report only	all year
006	Mercury, total [as Hg]	DAILY MX	report only	all year
006	Mercury, total [as Hg]	DAILY MX	report only	all year
006	Mercury, total [as Hg]	DAILY MX	report only	all year
006	Mercury, total [as Hg]	DAILY MX	report only	all year
007	pH	QC	>= 6 SU	all year
007	pH	MINIMUM	>= 6.5 SU	all year
007	pH	MINIMUM	>= 6.5 SU	all year
007	pH	MINIMUM	>= 6.5 SU	all year
007	pH	QC	>= 6 SU	all year
007	pH	MINIMUM	>= 6.5 SU	all year
007	pH	MINIMUM	>= 6.5 SU	all year
007	pH	MINIMUM	>= 6.5 SU	all year
007	pH	QB	<= 9 SU	all year
007	pH	MAXIMUM	<= 9 SU	all year
007	pH	MAXIMUM	<= 9 SU	all year
007	pH	MAXIMUM	<= 9 SU	all year
007	pH	QB	<= 9 SU	all year
007	pH	MAXIMUM	<= 9 SU	all year
007	pH	MAXIMUM	<= 9 SU	all year
007	pH	MAXIMUM	<= 9 SU	all year
007	Alkalinity, total [as CaCO3]	DAILY MX	report only	all year
007	Alkalinity, total [as CaCO3]	DAILY MX	report only	all year
007	Alkalinity, total [as CaCO3]	DAILY MX	report only	all year
007	Alkalinity, total [as CaCO3]	DAILY MX	report only	all year
007	Alkalinity, total [as CaCO3]	DAILY MX	report only	all year
007	Alkalinity, total [as CaCO3]	DAILY MX	report only	all year
007	Acidity, total [as CaCO3]	DAILY MX	report only	all year
007	Acidity, total [as CaCO3]	DAILY MX	report only	all year
007	Acidity, total [as CaCO3]	DAILY MX	report only	all year
007	Acidity, total [as CaCO3]	DAILY MX	report only	all year
007	Acidity, total [as CaCO3]	DAILY MX	report only	all year
007	Acidity, total [as CaCO3]	DAILY MX	report only	all year
007	Solids, total suspended	30DA AVG	<= 35 mg/L	all year
007	Solids, total suspended	30DA AVG	<= 35 mg/L	all year
007	Solids, total suspended	30DA AVG	<= 35 mg/L	all year
007	Solids, total suspended	30DA AVG	<= 35 mg/L	all year
007	Solids, total suspended	30DA AVG	<= 35 mg/L	all year
007	Solids, total suspended	30DA AVG	<= 35 mg/L	all year
007	Solids, total suspended	DAILY MX	<= 70 mg/L	all year
007	Solids, total suspended	DAILY MX	<= 70 mg/L	all year
007	Solids, total suspended	DAILY MX	<= 70 mg/L	all year
007	Solids, total suspended	DAILY MX	<= 70 mg/L	all year
007	Solids, total suspended	DAILY MX	<= 70 mg/L	all year
007	Solids, total suspended	DAILY MX	<= 70 mg/L	all year
007	Solids, settleable	QB	<= .5 mL/L	all year
007	Hardness, total [as CaCO3]	QB	report only	all year
007	Hardness, total [as CaCO3]	DAILY MX	report only	all year
007	Hardness, total [as CaCO3]	DAILY MX	report only	all year
007	Hardness, total [as CaCO3]	DAILY MX	report only	all year
007	Hardness, total [as CaCO3]	QB	report only	all year
007	Hardness, total [as CaCO3]	DAILY MX	report only	all year
007	Hardness, total [as CaCO3]	DAILY MX	report only	all year
007	Hardness, total [as CaCO3]	DAILY MX	report only	all year
007	Chloride [as Cl]	QB	<= 500 mg/L	all year
007	Chloride [as Cl]	DAILY MX	<= 500 mg/L	all year
007	Chloride [as Cl]	DAILY MX	<= 500 mg/L	all year
007	Chloride [as Cl]	DAILY MX	<= 500 mg/L	all year
007	Chloride [as Cl]	QB	<= 500 mg/L	all year
007	Chloride [as Cl]	DAILY MX	<= 500 mg/L	all year
007	Chloride [as Cl]	DAILY MX	<= 500 mg/L	all year
007	Chloride [as Cl]	DAILY MX	<= 500 mg/L	all year
007	Sulfate, total [as SO4]	QB	<= 2000 mg/L	all year
007	Sulfate, total [as SO4]	QB	<= 2000 mg/L	all year
007	Sulfate, total [as SO4]	DAILY MX	<= 2000 mg/L	all year
007	Sulfate, total [as SO4]	DAILY MX	<= 2000 mg/L	all year
007	Sulfate, total [as SO4]	DAILY MX	<= 2000 mg/L	all year
007	Sulfate, total [as SO4]	DAILY MX	<= 2000 mg/L	all year
007	Sulfate, total [as SO4]	DAILY MX	<= 2000 mg/L	all year
007	Sulfate, total [as SO4]	DAILY MX	<= 2000 mg/L	all year
007	Iron, total [as Fe]	30DA AVG	<= 3 mg/L	all year
007	Iron, total [as Fe]	30DA AVG	<= 3 mg/L	all year
007	Iron, total [as Fe]	30DA AVG	<= 3 mg/L	all year
007	Iron, total [as Fe]	30DA AVG	<= 3 mg/L	all year
007	Iron, total [as Fe]	30DA AVG	<= 3 mg/L	all year
007	Iron, total [as Fe]	30DA AVG	<= 3 mg/L	all year
007	Iron, total [as Fe]	DAILY MX	<= 6 mg/L	all year
007	Iron, total [as Fe]	DAILY MX	<= 6 mg/L	all year
007	Iron, total [as Fe]	DAILY MX	<= 6 mg/L	all year
007	Iron, total [as Fe]	DAILY MX	<= 6 mg/L	all year
007	Iron, total [as Fe]	DAILY MX	<= 6 mg/L	all year
007	Iron, total [as Fe]	DAILY MX	<= 6 mg/L	all year
007	Manganese, total [as Mn]	30DA AVG	<= 2 mg/L	all year
007	Manganese, total [as Mn]	30DA AVG	<= 2 mg/L	all year
007	Manganese, total [as Mn]	30DA AVG	<= 2 mg/L	all year
007	Manganese, total [as Mn]	30DA AVG	<= 2 mg/L	all year
007	Manganese, total [as Mn]	30DA AVG	<= 2 mg/L	all year
007	Manganese, total [as Mn]	30DA AVG	<= 2 mg/L	all year
007	Manganese, total [as Mn]	DAILY MX	<= 1 mg/L	all year
007	Manganese, total [as Mn]	DAILY MX	<= 1 mg/L	all year
007	Manganese, total [as Mn]	DAILY MX	<= 1 mg/L	all year
007	Manganese, total [as Mn]	DAILY MX	<= 1 mg/L	all year
007	Manganese, total [as Mn]	DAILY MX	<= 1 mg/L	all year
007	Manganese, total [as Mn]	DAILY MX	<= 1 mg/L	all year
007	Manganese, total [as Mn]	DAILY MX	<= 4 mg/L	all year
007	Manganese, total [as Mn]	DAILY MX	<= 4 mg/L	all year
007	Manganese, total [as Mn]	DAILY MX	<= 4 mg/L	all year
007	Manganese, total [as Mn]	DAILY MX	<= 4 mg/L	all year
007	Manganese, total [as Mn]	DAILY MX	<= 4 mg/L	all year
007	Manganese, total [as Mn]	DAILY MX	<= 4 mg/L	all year
007	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
007	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
007	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
007	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
007	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
007	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
007	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
007	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
007	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
007	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
007	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
007	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
007	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
007	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
007	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
007	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
007	Mercury, total [as Hg]	DAILY MX	report only	all year
007	Mercury, total [as Hg]	DAILY MX	report only	all year
007	Mercury, total [as Hg]	DAILY MX	report only	all year
007	Mercury, total [as Hg]	DAILY MX	report only	all year
007	Mercury, total [as Hg]	DAILY MX	report only	all year
007	Mercury, total [as Hg]	DAILY MX	report only	all year
008	pH	QC	>= 6 SU	all year
008	pH	MINIMUM	>= 6.5 SU	all year
008	pH	QC	>= 6 SU	all year
008	pH	MINIMUM	>= 6.5 SU	all year
008	pH	QB	<= 9 SU	all year
008	pH	MAXIMUM	<= 9 SU	all year
008	pH	QB	<= 9 SU	all year
008	pH	MAXIMUM	<= 9 SU	all year
008	Alkalinity, total [as CaCO3]	DAILY MX	report only	all year
008	Alkalinity, total [as CaCO3]	DAILY MX	report only	all year
008	Acidity, total [as CaCO3]	DAILY MX	report only	all year
008	Acidity, total [as CaCO3]	DAILY MX	report only	all year
008	Solids, total suspended	30DA AVG	<= 35 mg/L	all year
008	Solids, total suspended	30DA AVG	<= 35 mg/L	all year
008	Solids, total suspended	DAILY MX	<= 70 mg/L	all year
008	Solids, total suspended	DAILY MX	<= 70 mg/L	all year
008	Solids, settleable	QB	<= .5 mL/L	all year
008	Hardness, total [as CaCO3]	QB	report only	all year
008	Hardness, total [as CaCO3]	DAILY MX	report only	all year
008	Hardness, total [as CaCO3]	QB	report only	all year
008	Hardness, total [as CaCO3]	DAILY MX	report only	all year
008	Chloride [as Cl]	QB	<= 500 mg/L	all year
008	Chloride [as Cl]	DAILY MX	<= 500 mg/L	all year
008	Chloride [as Cl]	QB	<= 500 mg/L	all year
008	Chloride [as Cl]	DAILY MX	<= 500 mg/L	all year
008	Sulfate, total [as SO4]	QB	<= 1951 mg/L	all year
008	Sulfate, total [as SO4]	DAILY MX	<= 1951 mg/L	all year
008	Sulfate, total [as SO4]	QB	<= 1951 mg/L	all year
008	Sulfate, total [as SO4]	DAILY MX	<= 1951 mg/L	all year
008	Iron, total [as Fe]	30DA AVG	<= 3 mg/L	all year
008	Iron, total [as Fe]	30DA AVG	<= 3 mg/L	all year
008	Iron, total [as Fe]	DAILY MX	<= 6 mg/L	all year
008	Iron, total [as Fe]	DAILY MX	<= 6 mg/L	all year
008	Manganese, total [as Mn]	DAILY MX	<= 1 mg/L	all year
008	Manganese, total [as Mn]	DAILY MX	<= 1 mg/L	all year
008	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
008	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
008	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
008	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
008	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
008	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
008	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
008	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
008	Mercury, total [as Hg]	DAILY MX	report only	all year
008	Mercury, total [as Hg]	DAILY MX	report only	all year