Clean Water Act discharge permit · NPDES ILR10ZGRZ
MARQUIS CARBON SEQUESTRATION WELL CONSTRUCTION, Hennepin, IL: NPDES ILR10ZGRZ discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
MARQUIS CARBON SEQUESTRATION WELL CONSTRUCTION, held by Marquis Carbon Injection LLC, holds NPDES permit ILR10ZGRZ. EPA’s file records it issued April 8, 2026 and expiring August 31, 2028. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
What the register holds for MARQUIS CARBON SEQUESTRATION WELL CONSTRUCTION: its NPDES ID, its permit type and status, its dates, its address in Hennepin, Illinois. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES ILR10ZGRZ.
Identity
| Facility as filed | MARQUIS CARBON SEQUESTRATION WELL CONSTRUCTION |
|---|---|
| Permittee as filed | Marquis Carbon Injection LLC |
| NPDES ID | ILR10ZGRZ |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Construction stormwater |
| Issued | April 8, 2026 |
| Expiration date | August 31, 2028 |
| Issuing agency | IEPA |
| Address | Hennepin, IL 61327 |
| Subwatershed | Coffee Creek-Illinois River (HUC 071300011001) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES ILR10ZGRZ.
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 ILR10ZGRZ.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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.
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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 ILR10ZGRZ there.
Nearby on the register
- Discharge permits in Hennepin
- Every permit record in Hennepin, A to Z
- Discharge permits in Illinois
- Every permit record in Illinois, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.