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Clean Water Act discharge permit · NPDES AZMS80618

ASCENT AVIATION SERVICES CORP, Tucson, AZ: NPDES AZMS80618 discharge permit, effluent exceedances, inspections, penalties

ASCENT AVIATION SERVICES CORP, held by Ascent Aviation Services, Llc, holds NPDES permit AZMS80618. EPA’s file records it issued February 12, 2020 and expiring December 30, 2024. 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 ASCENT AVIATION SERVICES CORP: its NPDES ID, its permit type and status, its dates, its address in Tucson, Arizona. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES AZMS80618.

Identity

Facility as filedASCENT AVIATION SERVICES CORP
Permittee as filedAscent Aviation Services, Llc
NPDES IDAZMS80618
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
IssuedFebruary 12, 2020
Expiration dateDecember 30, 2024
AddressTucson, AZ 85756
SubwatershedRodeo Wash-Santa Cruz River (HUC 150503010905)
Other EPA IDs (FRS)RCRA handler AZD981574510

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 AZMS80618.

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 AZMS80618.

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, AZMS80618.

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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 AZMS80618 there.

Nearby on the register

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

What this page shows

ASCENT AVIATION SERVICES CORP is one of 136 general permit coverages in Tucson, and 8.8% of those 136 were issued earlier than this permit. It also sits among 72 NPDES permits in the Rodeo Wash-Santa Cruz River subwatershed, and the 0.0% of Tucson general permit coverages with a violation on file means none of its peers in that group carry one.