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Clean Water Act discharge permit · NPDES ILR10ZGUK

OLCZAK PROPERTY SITE IMPROVEMENTS - SINGLE FAMILY HOME, Lisle, IL: NPDES ILR10ZGUK discharge permit, effluent exceedances, inspections, penalties

OLCZAK PROPERTY SITE IMPROVEMENTS - SINGLE FAMILY HOME, held by To be Determined, holds NPDES permit ILR10ZGUK. EPA’s file records it issued April 19, 2026 and expiring August 31, 2028.

OLCZAK PROPERTY SITE IMPROVEMENTS - SINGLE FAMILY HOME, Lisle, Illinois: Coverage under a general permit ILR10ZGUK, held by To be Determined; Construction stormwater; Effective; issued April 19, 2026, term to August 31, 2028, by IEPA.

Illinois holds 5,215 Construction stormwater coverages of this permit type in EPA’s file; 4,502 were issued before ILR10ZGUK. To be Determined holds 34 permits in Illinois.

Other permits held by To be Determined

Coverages issued nearest ILR10ZGUK

OLCZAK PROPERTY SITE IMPROVEMENTS - SINGLE FAMILY HOME among its neighbors

EPA’s permit file holds 57 discharge permits in the East Branch Du Page River subwatershed (HUC 071200040804), ILR10ZGUK among them.

Other permits in the East Branch Du Page River subwatershed (HUC 071200040804)

What the register holds for OLCZAK PROPERTY SITE IMPROVEMENTS - SINGLE FAMILY HOME: its NPDES ID, its permit type and status, its dates, its address in Lisle, Illinois. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES ILR10ZGUK.

Identity

Facility as filedOLCZAK PROPERTY SITE IMPROVEMENTS - SINGLE FAMILY HOME
Permittee as filedTo be Determined
NPDES IDILR10ZGUK
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedApril 19, 2026
Expiration dateAugust 31, 2028
Issuing agencyIEPA
AddressLisle, IL 60532
Receiving water impaired303(D) Listed
SubwatershedEast Branch Du Page River (HUC 071200040804)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES ILR10ZGUK.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES ILR10ZGUK.

Inspections

EPA’s inspection file holds no inspection for NPDES ILR10ZGUK.

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 ILR10ZGUK.

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, ILR10ZGUK.

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  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

The OLCZAK PROPERTY SITE IMPROVEMENTS - SINGLE FAMILY HOME permit is one of 9 storm water construction permits in Lisle, and 0.0% of those permits carry a violation on file. Among all 9 Lisle storm water construction permits, including this one, 77.8% were issued earlier than this permit, and it sits within a subwatershed that holds 57 NPDES permits, this one included. The permit records zero pollutants under a numeric limit and zero pollutants with an effluent exceedance.