Clean Water Act discharge permit · NPDES AZMS90179
UNION PACIFIC RAILROAD - PHOENIX YARD, Phoenix, AZ: NPDES AZMS90179 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
UNION PACIFIC RAILROAD - PHOENIX YARD, held by Union Pacific Railroad Company, holds NPDES permit AZMS90179. EPA’s file records it issued July 20, 2021 and expiring December 31, 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 UNION PACIFIC RAILROAD - PHOENIX YARD: its NPDES ID, its permit type and status, its dates, its address in Phoenix, Arizona. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES AZMS90179.
Identity
| Facility as filed | UNION PACIFIC RAILROAD - PHOENIX YARD |
|---|---|
| Permittee as filed | Union Pacific Railroad Company |
| NPDES ID | AZMS90179 |
| 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 | July 20, 2021 |
| Expiration date | December 31, 2024 |
| Address | Phoenix, AZ 85034 |
| Subwatershed | City of Phoenix-Salt River (HUC 150601060305) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
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 AZMS90179.
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 AZMS90179.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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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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 AZMS90179 there.
Nearby on the register
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- Every permit record in Arizona, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.