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Clean Water Act discharge permit · NPDES ILR10ZDYW

LYONS TOWNSHIP HIGH SCHOOL SOUTH CAMPUS, Western Springs, IL: NPDES ILR10ZDYW discharge permit, effluent exceedances, inspections, penalties

LYONS TOWNSHIP HIGH SCHOOL SOUTH CAMPUS, held by Lyons Township High School District 204, holds NPDES permit ILR10ZDYW. EPA’s file records it issued April 26, 2024 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 LYONS TOWNSHIP HIGH SCHOOL SOUTH CAMPUS: its NPDES ID, its permit type and status, its dates, its address in Western Springs, Illinois. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES ILR10ZDYW.

Identity

Facility as filedLYONS TOWNSHIP HIGH SCHOOL SOUTH CAMPUS
Permittee as filedLyons Township High School District 204
NPDES IDILR10ZDYW
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedApril 26, 2024
Expiration dateAugust 31, 2028
Issuing agencyIEPA
AddressWestern Springs, IL 60558
Receiving water impaired303(D) Listed
SubwatershedLower Salt Creek (HUC 071200040404)
Other EPA IDs (FRS)RCRA handler ILR000001222

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES ILR10ZDYW.

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 ILR10ZDYW.

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, ILR10ZDYW.

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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 ILR10ZDYW there.

Nearby on the register

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

What this page shows

LYONS TOWNSHIP HIGH SCHOOL SOUTH CAMPUS is among 70 storm water construction permits in Cook County, and 0.0% of those have a violation on file. The Lower Salt Creek subwatershed (HUC 071200040404) includes 103 NPDES permits, including this permit.