Velarion Records
Follow this permit Velarion Records emails you this permit’s record, cited to the public filing, and tells you when the register changes it. Free.
We’ll email you a link to confirm. The continuous daily watch on every change is the paid alert. Unsubscribe any time.
Also free: The Pay Desk, the weekly executive pay briefing.

Clean Water Act discharge permit · NPDES ILR10ZFL6

HIBBARD PARK OSLAD DEVELOPMENT, Wilmette, IL: NPDES ILR10ZFL6 discharge permit, effluent exceedances, inspections, penalties

HIBBARD PARK OSLAD DEVELOPMENT, held by Wilmette Park District, holds NPDES permit ILR10ZFL6. EPA’s file records it issued May 28, 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 HIBBARD PARK OSLAD DEVELOPMENT: its NPDES ID, its permit type and status, its dates, its address in Wilmette, Illinois. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES ILR10ZFL6.

Identity

Facility as filedHIBBARD PARK OSLAD DEVELOPMENT
Permittee as filedWilmette Park District
NPDES IDILR10ZFL6
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedMay 28, 2025
Expiration dateAugust 31, 2028
Issuing agencyIEPA
AddressWilmette, IL 60091
Receiving water impaired303(D) Listed
SubwatershedMiddle North Branch Chicago River (HUC 071200030105)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES ILR10ZFL6.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES ILR10ZFL6.

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, ILR10ZFL6.

Start the watch

How often?
  • 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 ILR10ZFL6 there.

Nearby on the register

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

What this page shows

Counting this permit, the register lists 2 storm water construction permits in Wilmette. HIBBARD PARK OSLAD DEVELOPMENT sits in the Middle North Branch Chicago River subwatershed, which holds 36 NPDES permits, this permit included. Both counts cover permits on EPA's NPDES register, one by city and one by subwatershed.