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Clean Water Act discharge permit · NPDES TXR1544ST

SERENO SPRINGS UNIT 2, San Antonio, TX: NPDES TXR1544ST discharge permit, effluent exceedances, inspections, penalties

SERENO SPRINGS UNIT 2, held by City Public Service Energy, holds NPDES permit TXR1544ST, which discharges to Tributary Of Martinez Creek. EPA’s file records it issued November 15, 2024 and expiring March 4, 2028. 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 SERENO SPRINGS UNIT 2: its NPDES ID, its permit type and status, its dates, its address in San Antonio, Texas, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR1544ST.

Identity

Facility as filedSERENO SPRINGS UNIT 2
Permittee as filedCity Public Service Energy
NPDES IDTXR1544ST
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedNovember 15, 2024
Expiration dateMarch 4, 2028
AddressSan Antonio, TX 78101
Receiving waterTRIBUTARY OF MARTINEZ CREEK
SubwatershedSalitrillo Creek-Martinez Creek (HUC 121003040205)

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 TXR1544ST.

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 TXR1544ST.

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, TXR1544ST.

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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 TXR1544ST there.

Nearby on the register

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

What this page shows

The SERENO SPRINGS UNIT 2 permit is one of 1,788 storm water construction permits in Bexar County on EPA's NPDES register, and 0.2% of those permits have a violation on file. Among the 1,787 storm water construction permits in Bexar County (this one included), 33.2% were issued earlier than this permit. The permit is also one of 202 NPDES permits in the Salitrillo Creek-Martinez Creek subwatershed, and it has no pollutants under a numeric limit and no pollutants with an effluent exceedance.