Clean Water Act discharge permit · NPDES ILR10ZFRT
TSS46 DES PLAINES SUBSTATION EXPANSION, Des Plaines, IL: NPDES ILR10ZFRT discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
TSS46 DES PLAINES SUBSTATION EXPANSION, held by Commonwealth Edison, holds NPDES permit ILR10ZFRT. EPA’s file records it issued July 6, 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 TSS46 DES PLAINES SUBSTATION EXPANSION: its NPDES ID, its permit type and status, its dates, its address in Des Plaines, Illinois. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES ILR10ZFRT.
Identity
| Facility as filed | TSS46 DES PLAINES SUBSTATION EXPANSION |
|---|---|
| Permittee as filed | Commonwealth Edison |
| NPDES ID | ILR10ZFRT |
| 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 | July 6, 2025 |
| Expiration date | August 31, 2028 |
| Issuing agency | IEPA |
| Address | Des Plaines, IL 60016 |
| Subwatershed | Weller Creek-Des Plaines River (HUC 071200040505) |
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 ILR10ZFRT.
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 ILR10ZFRT.
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
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, ILR10ZFRT.
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- One state — $4,990/year
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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 ILR10ZFRT there.
Nearby on the register
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- Every permit record in Des Plaines, 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.