Clean Water Act discharge permit · NPDES COR900303
FRONTIER AIRLINES MAINTENANCE HANGAR, Denver, CO: NPDES COR900303 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
FRONTIER AIRLINES MAINTENANCE HANGAR, held by Frontier Airlines Inc, holds NPDES permit COR900303, which discharges to Unnamed Tributary - Third Creek. EPA’s file records it issued May 18, 2012 and expiring June 30, 2017. 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.
Identity
| Facility as filed | FRONTIER AIRLINES MAINTENANCE HANGAR |
|---|---|
| Permittee as filed | Frontier Airlines Inc |
| NPDES ID | COR900303 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | May 18, 2012 |
| Expiration date | June 30, 2017 |
| Address | Denver, CO 80249 |
| Receiving water | Unnamed tributary - Third Creek |
| Subwatershed | Third Creek (HUC 101900030404) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 41Pollutants on file
- 0Under a numeric limit
- 41With a violation of any kind
- 0With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Perfluorooctanoic acid (PFOA) | 0 | 16 | 0 | ||
| Perfluorobutanoic acid (PFBA) | 0 | 16 | 0 | ||
| Perfluorooctanesulfonamide (PFOSA) | 0 | 16 | 0 | ||
| Perfluoropentanoic acid (PFPeA) | 0 | 16 | 0 | ||
| Perfluorohexanoic acid (PFHxA) | 0 | 16 | 0 | ||
| Perfluoroheptanoic acid (PFHpA) | 0 | 16 | 0 | ||
| Perfluorononanoic acid (PFNA) | 0 | 16 | 0 | ||
| Perfluorodecanoic acid (PFDA) | 0 | 16 | 0 | ||
| Perfluoroundecanoic acid (PFUnA) | 0 | 16 | 0 | ||
| Perfluorododecanoic acid (PFDoA) | 0 | 16 | 0 | ||
| Perfluorotridecanoic acid (PFTrDA) | 0 | 16 | 0 | ||
| Perfluorotetradecanoic acid (PFTeDA) | 0 | 16 | 0 | ||
| N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE) | 0 | 16 | 0 | ||
| N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE) | 0 | 16 | 0 | ||
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | 0 | 16 | 0 | ||
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | 0 | 16 | 0 | ||
| Perfluorobutanesulfonic acid (PFBS) | 0 | 16 | 0 | ||
| Perfluorodecanesulfonic acid (PFDS) | 0 | 16 | 0 | ||
| Perfluoroheptanesulfonic acid (PFHpS) | 0 | 16 | 0 | ||
| Perfluorohexanesulfonic acid (PFHxS) | 0 | 16 | 0 | ||
| Perfluorooctanesulfonic acid (PFOS) | 0 | 16 | 0 | ||
| 1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) | 0 | 16 | 0 | ||
| 1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) | 0 | 16 | 0 | ||
| 1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS) | 0 | 16 | 0 | ||
| Perfluoropentanesulfonic acid (PFPeS) | 0 | 16 | 0 | ||
| Perfluorononanesulfonic acid (PFNS) | 0 | 16 | 0 | ||
| Hexafluoropropylene oxide dimer acid (HFPO-DA) | 0 | 16 | 0 | ||
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | 0 | 16 | 0 | ||
| Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA) | 0 | 16 | 0 | ||
| Perfluorododecanesulfonic acid (PFDoS) | 0 | 16 | 0 | ||
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | 0 | 16 | 0 | ||
| N-methyl perfluorooctanesulfonamide (NMeFOSA) | 0 | 16 | 0 | ||
| N-ethyl perfluorooctanesulfonamide (NEtFOSA) | 0 | 16 | 0 | ||
| PFAS Sum | 0 | 16 | 0 | ||
| 3-Perfluoropropyl propanoic acid (3:3 FTCA) | 0 | 16 | 0 | ||
| Perfluoro-3-methoxypropanoic acid (PFMPA) | 0 | 16 | 0 | ||
| 9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS) | 0 | 16 | 0 | ||
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | 0 | 16 | 0 | ||
| 3-Perfluoroheptyl propanoic acid (7:3 FTCA) | 0 | 16 | 0 | ||
| Perfluoro-4-methoxybutanoic acid (PFMBA) | 0 | 16 | 0 | ||
| 2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA) | 0 | 16 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COR900303.
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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES COR900303.
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
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Start the watch
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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 COR900303 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.