Clean Water Act discharge permit · NPDES ILR10ZGSZ
IDOT CONTRACT 60R94 JAN'26 LETTING ITEM 191, ILLINOIS 171 AND 95TH ST, Unincorporated Willow Springs, IL: NPDES ILR10ZGSZ discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
IDOT CONTRACT 60R94 JAN'26 LETTING ITEM 191, ILLINOIS 171 AND 95TH ST, held by OHLA Central, Inc., holds NPDES permit ILR10ZGSZ. EPA’s file records it issued March 18, 2026 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 IDOT CONTRACT 60R94 JAN'26 LETTING ITEM 191, ILLINOIS 171 AND 95TH ST: its NPDES ID, its permit type and status, its dates, its address in Unincorporated Willow Springs, Illinois. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES ILR10ZGSZ.
Identity
| Facility as filed | IDOT CONTRACT 60R94 JAN'26 LETTING ITEM 191, ILLINOIS 171 AND 95TH ST |
|---|---|
| Permittee as filed | OHLA Central, Inc. |
| NPDES ID | ILR10ZGSZ |
| 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 | March 18, 2026 |
| Expiration date | August 31, 2028 |
| Issuing agency | IEPA |
| Address | Unincorporated Willow Springs, IL 60480 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Maple Lake-Chicago Sanitary and Ship Canal (HUC 071200040705) |
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 ILR10ZGSZ.
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 ILR10ZGSZ.
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.
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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 ILR10ZGSZ there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.