KNIGHT HAWK COAL, LLC

NPDES permit IL0077381 · Minor NON-POTW · effective, expires 2027-12-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

0values over a limit
0required values missing, on 0 form(s)
0of 112 forms filed late

Last period with anything received: 2026-06-30.

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 (124)

OutfallParameterStatisticLimitMonths
026pHMINIMUM >= 6.5 SU all year
026pHMINIMUM >= 6.5 SU all year
026pHQC >= 6 SU all year
026pHQC >= 6 SU all year
026pHMAXIMUM <= 9 SU all year
026pHMAXIMUM <= 9 SU all year
026pHQB <= 9 SU all year
026pHQB <= 9 SU all year
026Solids, settleableDAILY MX <= .5 mL/L all year
026Solids, settleableDAILY MX <= .5 mL/L all year
026Solids, settleableQB <= .5 mL/L all year
026Hardness, total [as CaCO3]DAILY MX report only all year
026Hardness, total [as CaCO3]DAILY MX report only all year
026Hardness, total [as CaCO3]QB report only all year
026Hardness, total [as CaCO3]QB report only all year
026Chloride [as Cl]DAILY MX <= 500 mg/L all year
026Chloride [as Cl]DAILY MX <= 500 mg/L all year
026Chloride [as Cl]QB <= 500 mg/L all year
026Chloride [as Cl]QB <= 500 mg/L all year
026Sulfate, total [as SO4]DAILY MX <= 1188 mg/L all year
026Sulfate, total [as SO4]DAILY MX <= 1188 mg/L all year
026Sulfate, total [as SO4]QB <= 1188 mg/L all year
026Sulfate, total [as SO4]QB <= 1188 mg/L all year
026Flow, in conduit or thru treatment plantMO AVG report only all year
026Flow, in conduit or thru treatment plantMO AVG report only all year
026Flow, in conduit or thru treatment plantMO AVG report only all year
026Flow, in conduit or thru treatment plantMO AVG report only all year
026Flow, in conduit or thru treatment plantDAILY MX report only all year
026Flow, in conduit or thru treatment plantDAILY MX report only all year
026Flow, in conduit or thru treatment plantDAILY MX report only all year
026Flow, in conduit or thru treatment plantDAILY MX report only all year
027pHQC >= 6 SU all year
027pHMINIMUM >= 6.5 SU all year
027pHQC >= 6 SU all year
027pHMINIMUM >= 6.5 SU all year
027pHQB <= 9 SU all year
027pHMAXIMUM <= 9 SU all year
027pHQB <= 9 SU all year
027pHMAXIMUM <= 9 SU all year
027Solids, settleableQB <= .5 mL/L all year
027Solids, settleableDAILY MX <= .5 mL/L all year
027Solids, settleableDAILY MX <= .5 mL/L all year
027Hardness, total [as CaCO3]QB report only all year
027Hardness, total [as CaCO3]DAILY MX report only all year
027Hardness, total [as CaCO3]QB report only all year
027Hardness, total [as CaCO3]DAILY MX report only all year
027Chloride [as Cl]QB <= 500 mg/L all year
027Chloride [as Cl]DAILY MX <= 500 mg/L all year
027Chloride [as Cl]QB <= 500 mg/L all year
027Chloride [as Cl]DAILY MX <= 500 mg/L all year
027Sulfate, total [as SO4]QB <= 1622 mg/L all year
027Sulfate, total [as SO4]DAILY MX <= 1622 mg/L all year
027Sulfate, total [as SO4]QB <= 1622 mg/L all year
027Sulfate, total [as SO4]DAILY MX <= 1622 mg/L all year
027Flow, in conduit or thru treatment plantMO AVG report only all year
027Flow, in conduit or thru treatment plantMO AVG report only all year
027Flow, in conduit or thru treatment plantMO AVG report only all year
027Flow, in conduit or thru treatment plantMO AVG report only all year
027Flow, in conduit or thru treatment plantDAILY MX report only all year
027Flow, in conduit or thru treatment plantDAILY MX report only all year
027Flow, in conduit or thru treatment plantDAILY MX report only all year
027Flow, in conduit or thru treatment plantDAILY MX report only all year
028pHMINIMUM >= 6.5 SU all year
028pHQC >= 6 SU all year
028pHQC >= 6 SU all year
028pHMINIMUM >= 6.5 SU all year
028pHMAXIMUM <= 9 SU all year
028pHQB <= 9 SU all year
028pHQB <= 9 SU all year
028pHMAXIMUM <= 9 SU all year
028Solids, settleableDAILY MX <= .5 mL/L all year
028Solids, settleableQB <= .5 mL/L all year
028Solids, settleableDAILY MX <= .5 mL/L all year
028Hardness, total [as CaCO3]DAILY MX report only all year
028Hardness, total [as CaCO3]QB report only all year
028Hardness, total [as CaCO3]QB report only all year
028Hardness, total [as CaCO3]DAILY MX report only all year
028Chloride [as Cl]DAILY MX <= 500 mg/L all year
028Chloride [as Cl]QB <= 500 mg/L all year
028Chloride [as Cl]QB <= 500 mg/L all year
028Chloride [as Cl]DAILY MX <= 500 mg/L all year
028Sulfate, total [as SO4]DAILY MX <= 1832 mg/L all year
028Sulfate, total [as SO4]QB <= 1832 mg/L all year
028Sulfate, total [as SO4]QB <= 1832 mg/L all year
028Sulfate, total [as SO4]DAILY MX <= 1832 mg/L all year
028Flow, in conduit or thru treatment plantMO AVG report only all year
028Flow, in conduit or thru treatment plantMO AVG report only all year
028Flow, in conduit or thru treatment plantMO AVG report only all year
028Flow, in conduit or thru treatment plantMO AVG report only all year
028Flow, in conduit or thru treatment plantDAILY MX report only all year
028Flow, in conduit or thru treatment plantDAILY MX report only all year
028Flow, in conduit or thru treatment plantDAILY MX report only all year
028Flow, in conduit or thru treatment plantDAILY MX report only all year
029pHQC >= 6 SU all year
029pHMINIMUM >= 6.5 SU all year
029pHMINIMUM >= 6.5 SU all year
029pHQC >= 6 SU all year
029pHQB <= 9 SU all year
029pHMAXIMUM <= 9 SU all year
029pHMAXIMUM <= 9 SU all year
029pHQB <= 9 SU all year
029Solids, settleableQB <= .5 mL/L all year
029Solids, settleableDAILY MX <= .5 mL/L all year
029Solids, settleableDAILY MX <= .5 mL/L all year
029Hardness, total [as CaCO3]QB report only all year
029Hardness, total [as CaCO3]DAILY MX report only all year
029Hardness, total [as CaCO3]DAILY MX report only all year
029Hardness, total [as CaCO3]QB report only all year
029Chloride [as Cl]QB <= 500 mg/L all year
029Chloride [as Cl]DAILY MX <= 500 mg/L all year
029Chloride [as Cl]DAILY MX <= 500 mg/L all year
029Chloride [as Cl]QB <= 500 mg/L all year
029Sulfate, total [as SO4]QB <= 1458 mg/L all year
029Sulfate, total [as SO4]DAILY MX <= 1458 mg/L all year
029Sulfate, total [as SO4]DAILY MX <= 1458 mg/L all year
029Sulfate, total [as SO4]QB <= 1458 mg/L all year
029Flow, in conduit or thru treatment plantMO AVG report only all year
029Flow, in conduit or thru treatment plantMO AVG report only all year
029Flow, in conduit or thru treatment plantMO AVG report only all year
029Flow, in conduit or thru treatment plantMO AVG report only all year
029Flow, in conduit or thru treatment plantDAILY MX report only all year
029Flow, in conduit or thru treatment plantDAILY MX report only all year
029Flow, in conduit or thru treatment plantDAILY MX report only all year
029Flow, in conduit or thru treatment plantDAILY MX report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states