Clean Water Act discharge permit · NPDES AZMS81412
RYAN AIRFIELD, Tucson, AZ: NPDES AZMS81412 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
RYAN AIRFIELD, held by Tucson Airport Authority, holds NPDES permit AZMS81412. EPA’s file records it issued February 28, 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 RYAN AIRFIELD: 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 AZMS81412.
Identity
| Facility as filed | RYAN AIRFIELD |
|---|---|
| Permittee as filed | Tucson Airport Authority |
| NPDES ID | AZMS81412 |
| 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 |
| Issued | February 28, 2020 |
| Expiration date | December 30, 2024 |
| Address | Tucson, AZ 85735 |
| Subwatershed | 150503040501 (HUC 150503040501) |
| Other EPA IDs (FRS) | RCRA handler AZR000533810 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES AZMS81412.
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 AZMS81412.
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.
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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 AZMS81412 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.