Clean Water Act discharge permit · NPDES ILR10ZG6I
CTA RLE MAINLINE - SEGMENT 4, Chicago, IL: NPDES ILR10ZG6I discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
CTA RLE MAINLINE - SEGMENT 4, held by Walsh Vinci, holds NPDES permit ILR10ZG6I. EPA’s file records it issued October 22, 2025 and expiring August 31, 2028. 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.
What the register holds for CTA RLE MAINLINE - SEGMENT 4: its NPDES ID, its permit type and status, its dates, its address in Chicago, Illinois. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES ILR10ZG6I.
Identity
| Facility as filed | CTA RLE MAINLINE - SEGMENT 4 |
|---|---|
| Permittee as filed | Walsh Vinci |
| NPDES ID | ILR10ZG6I |
| 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 | October 22, 2025 |
| Expiration date | August 31, 2028 |
| Issuing agency | IEPA |
| Address | Chicago, IL 60628 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | South Branch Chicago River-Chicago Sanitary and Ship Canal (HUC 071200030107) |
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 ILR10ZG6I.
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 ILR10ZG6I.
Inspections
EPA’s inspection file holds no inspection for NPDES ILR10ZG6I.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES ILR10ZG6I.
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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, ILR10ZG6I.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 ILR10ZG6I there.
Nearby on the register
- Discharge permits in Chicago
- Every permit record in Chicago, A to Z
- Discharge permits in Illinois
- Every permit record in Illinois, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.