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Clean Water Act discharge permit · NPDES AZI108244

SKYWEST AIRLINES INC - PHOENIX AIRPORT, Phoenix, AZ: NPDES AZI108244 discharge permit, effluent exceedances, inspections, penalties

SKYWEST AIRLINES INC - PHOENIX AIRPORT, held by Skywest Airlines, Inc., holds NPDES permit AZI108244, which discharges to Salt River | Tempe Town Lake Dam - I-10 Bridge. EPA’s file records it issued January 16, 2025 and expiring January 15, 2030.

SKYWEST AIRLINES INC - PHOENIX AIRPORT, Phoenix, Arizona: Coverage under a general permit AZI108244, held by Skywest Airlines, Inc.; Industrial stormwater; Effective; issued January 16, 2025, term to January 15, 2030, by ADEQ; discharges to Salt River | TEMPE TOWN LAKE DAM - I-10 BRIDGE.

  • January 9, 2026: Evaluation (S).

Arizona holds 720 Industrial stormwater coverages of this permit type in EPA’s file; 8 were issued before AZI108244.

Coverages issued nearest AZI108244

SKYWEST AIRLINES INC - PHOENIX AIRPORT among its neighbors

EPA’s permit file holds 542 discharge permits in the City of Phoenix-Salt River subwatershed (HUC 150601060305), AZI108244 among them.

Other permits in the City of Phoenix-Salt River subwatershed (HUC 150601060305)

Identity

Facility as filedSKYWEST AIRLINES INC - PHOENIX AIRPORT
Permittee as filedSkywest Airlines, Inc.
NPDES IDAZI108244
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedJanuary 16, 2025
Expiration dateJanuary 15, 2030
Issuing agencyADEQ
AddressPhoenix, AZ 85034
Receiving waterSalt River | TEMPE TOWN LAKE DAM - I-10 BRIDGE
SubwatershedCity of Phoenix-Salt River (HUC 150601060305)
SIC4512 – Air Transportation, Scheduled

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES AZI108244.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES AZI108244.

Inspections

DateWhat EPA recordedAgency
January 9, 2026EvaluationS

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES AZI108244.

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, AZI108244.

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Nearby on the register

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

What this page shows

SKYWEST AIRLINES INC - PHOENIX AIRPORT is one of 77 storm water industrial permits in Phoenix, this one included, and it sits among 542 NPDES permits in the City of Phoenix-Salt River subwatershed, this one included. Of the 77 Phoenix storm water industrial permits, 0.0% were issued earlier than this one, and it has no pollutants under a numeric limit and no pollutants with an effluent exceedance on file, unlike 7.8% of its Phoenix storm water industrial peers that carry a violation.