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Clean Water Act discharge permit · NPDES AZMS80018

CITY OF TUCSON - POLICE HELICOPTER MAINTENANCE, Tucson, AZ: NPDES AZMS80018 discharge permit, effluent exceedances, inspections, penalties

CITY OF TUCSON - POLICE HELICOPTER MAINTENANCE, held by Tucson Police Department Air Support Unit, holds NPDES permit AZMS80018. EPA’s file records it issued January 17, 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 CITY OF TUCSON - POLICE HELICOPTER MAINTENANCE: 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 AZMS80018.

Identity

Facility as filedCITY OF TUCSON - POLICE HELICOPTER MAINTENANCE
Permittee as filedTucson Police Department Air Support Unit
NPDES IDAZMS80018
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
IssuedJanuary 17, 2020
Expiration dateDecember 30, 2024
AddressTucson, AZ 85756
SubwatershedAirport Wash (HUC 150503010902)
Other EPA IDs (FRS)RCRA handler AZ0000297168

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 AZMS80018.

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 AZMS80018.

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, AZMS80018.

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How often?
  • 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 AZMS80018 there.

Nearby on the register

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

What this page shows

CITY OF TUCSON - POLICE HELICOPTER MAINTENANCE is among the 105 general permit coverages in Pima County, and 0.0% of those carry a violation on file. Of those 105, 17.1% were issued before this permit, and the Airport Wash subwatershed contains 63 NPDES permits, including this permit.