Clean Water Act discharge permit · NPDES IL0072656
KNIGHT HAWK COAL LLC, Vergennes, IL: NPDES IL0072656 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
KNIGHT HAWK COAL LLC holds NPDES permit IL0072656, which discharges to Youngs-Walker-Beaucoup-Big Muddy. EPA’s file records it issued March 4, 2008 and expiring February 28, 2013. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | KNIGHT HAWK COAL LLC |
|---|---|
| Permittee as filed | KNIGHT HAWK COAL LLC |
| NPDES ID | IL0072656 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | March 4, 2008 |
| Expiration date | February 28, 2013 |
| Address | Vergennes, IL 62994 |
| Receiving water | YOUNGS-WALKER-BEAUCOUP-BIG MUDDY |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Yangs Creek (HUC 071401061010) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 12Pollutants on file
- 12Under a numeric limit
- 6With a violation of any kind
- 5With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 8 | 24 | 24 | June 30, 2026 | 283% over the limit |
| Iron, total [as Fe] | 8 | 6 | 6 | February 28, 2019 | 48% over the limit |
| Manganese, total [as Mn] | 4 | 5 | 5 | May 31, 2025 | 86% over the limit |
| Solids, settleable | 2 | 3 | 3 | March 31, 2024 | 4,900% over the limit |
| Sulfate, total [as SO4] | 8 | 1 | 1 | June 30, 2026 | 2% over the limit |
| Mercury, total [as Hg] | 8 | 5 | 0 | ||
| pH | 16 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 16 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 8 | 0 | 0 | ||
| Chloride [as Cl] | 8 | 0 | 0 | ||
| Alkalinity, total [as CaCO3] | 4 | 0 | 0 | ||
| Acidity, total [as CaCO3] | 4 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES IL0072656.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID IL0072656 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.