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Clean Water Act discharge permit · NPDES ILR10ZCPY

ST. LOUIS REGIONAL AIRPORT AUTHORITY - BETHALTO HANGAR IMPROVEMENTS, East Alton, IL: NPDES ILR10ZCPY discharge permit, effluent exceedances, inspections, penalties

ST. LOUIS REGIONAL AIRPORT AUTHORITY - BETHALTO HANGAR IMPROVEMENTS, held by Contegra Construction, holds NPDES permit ILR10ZCPY. EPA’s file records it issued August 15, 2023 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 ST. LOUIS REGIONAL AIRPORT AUTHORITY - BETHALTO HANGAR IMPROVEMENTS: its NPDES ID, its permit type and status, its dates, its address in East Alton, Illinois. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES ILR10ZCPY.

Identity

Facility as filedST. LOUIS REGIONAL AIRPORT AUTHORITY - BETHALTO HANGAR IMPROVEMENTS
Permittee as filedContegra Construction
NPDES IDILR10ZCPY
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedAugust 15, 2023
Expiration dateAugust 31, 2028
Issuing agencyIEPA
AddressEast Alton, IL 62024
SubwatershedCity of Woodriver-Mississippi River (HUC 071100090403)
Other EPA IDs (FRS)RCRA handler ILR000004945

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 ILR10ZCPY.

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 ILR10ZCPY.

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, ILR10ZCPY.

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  • 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 ILR10ZCPY there.

Nearby on the register

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

What this page shows

Of the 10 storm water construction permits in Madison County, 0.0% have a violation on file for ST. LOUIS REGIONAL AIRPORT AUTHORITY - BETHALTO HANGAR IMPROVEMENTS. Contegra Construction holds this East Alton filing, which sits among 25 NPDES permits in the City of Woodriver-Mississippi River subwatershed. Of all 10 Madison County storm water permits, 10.0% were issued earlier than this filing, which reports 0 pollutants under a numeric limit and 0 with an effluent exceedance.