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Clean Water Act discharge permit · NPDES TXR1508WS

TMM SOMERSET UNIT 3A, San Antonio, TX: NPDES TXR1508WS discharge permit, effluent exceedances, inspections, penalties

TMM SOMERSET UNIT 3A, held by Indigo Construction, LLC, holds NPDES permit TXR1508WS, which discharges to Indian Creek. EPA’s file records it issued December 10, 2025 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 TMM SOMERSET UNIT 3A: 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 TXR1508WS.

Identity

Facility as filedTMM SOMERSET UNIT 3A
Permittee as filedIndigo Construction, LLC
NPDES IDTXR1508WS
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedDecember 10, 2025
Expiration dateMarch 4, 2028
AddressSan Antonio, TX 78073
Receiving waterINDIAN CREEK
SubwatershedLive Oak Slough-Medina River (HUC 121003020505)

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 TXR1508WS.

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 TXR1508WS.

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, TXR1508WS.

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  • 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 TXR1508WS there.

Nearby on the register

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

What this page shows

TMM SOMERSET UNIT 3A is one of 1,788 storm water construction permits on EPA's NPDES register in Bexar County. Of all 1,787 storm water construction permits in Bexar County, 67.7% have an earlier issue date than this permit.