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Clean Water Act discharge permit · NPDES COR900317

AIRCRAFT SUPPORT FACILITY (HANGAR), Denver, CO: NPDES COR900317 discharge permit, effluent exceedances, inspections, penalties

AIRCRAFT SUPPORT FACILITY (HANGAR), held by United Airlines Inc, holds NPDES permit COR900317, which discharges to Unnamed Tributary - Denver Hudson Canal. EPA’s file records it issued May 21, 2012 and expiring June 30, 2017. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for AIRCRAFT SUPPORT FACILITY (HANGAR): its NPDES ID, its permit type and status, its dates, its address in Denver, Colorado, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR900317.

Identity

Facility as filedAIRCRAFT SUPPORT FACILITY (HANGAR)
Permittee as filedUnited Airlines Inc
NPDES IDCOR900317
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedMay 21, 2012
Expiration dateJune 30, 2017
AddressDenver, CO 80249
Receiving waterUnnamed tributary - Denver Hudson Canal
Subwatershed101900030801 (HUC 101900030801)
SIC4512 – Air Transportation, Scheduled

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES COR900317.

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 COR900317.

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, COR900317.

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  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
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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 COR900317 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

The AIRCRAFT SUPPORT FACILITY (HANGAR) in Denver is one of 114 storm water industrial permits in Denver County, and its issue date of May 21, 2012 is earlier than that of 8.8% of them. Among those 114 permits, 47.4% have a violation on file, while this permit has none of the records listed as zero, including no pollutants under a numeric limit and no effluent exceedances. It also sits among 10 NPDES permits in the 101900030801 subwatershed, this one included.