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Clean Water Act discharge permit · NPDES TXR05GP94

UNION PACIFIC RR FORMER DIESEL SHOP-EAST YARD-SAN ANTONIO, San Antonio, TX: NPDES TXR05GP94 discharge permit, effluent exceedances, inspections, penalties

UNION PACIFIC RR FORMER DIESEL SHOP-EAST YARD-SAN ANTONIO, held by Union Pacific Railroad Company, holds NPDES permit TXR05GP94. EPA’s file records it issued January 28, 2025 and expiring August 13, 2026. 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 RR FORMER DIESEL SHOP-EAST YARD-SAN ANTONIO: its NPDES ID, its permit type and status, its dates, its address in San Antonio, Texas. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR05GP94.

Identity

Facility as filedUNION PACIFIC RR FORMER DIESEL SHOP-EAST YARD-SAN ANTONIO
Permittee as filedUnion Pacific Railroad Company
NPDES IDTXR05GP94
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
ProgramIndustrial stormwater
IssuedJanuary 28, 2025
Expiration dateAugust 13, 2026
AddressSan Antonio, TX 78202
SubwatershedWalzem Creek (HUC 121003010105)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES TXR05GP94.

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 TXR05GP94.

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, TXR05GP94.

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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 TXR05GP94 there.

Nearby on the register

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

What this page shows

The UNION PACIFIC RR FORMER DIESEL SHOP-EAST YARD-SAN ANTONIO storm water industrial permit is one of 267 such permits on the register in Bexar County, and 2.6% of those carry a violation on file. Within the Walzem Creek subwatershed, the permit sits among 87 NPDES permits, this one included. The permit records zero pollutants under a numeric limit and zero pollutants with an effluent exceedance.