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Clean Water Act discharge permit · NPDES TXR1550OO

T508 DOSS TO HEADWATERS TL UPGRADE, Doss, TX: NPDES TXR1550OO discharge permit, effluent exceedances, inspections, penalties

T508 DOSS TO HEADWATERS TL UPGRADE, held by Irby Construction Company, holds NPDES permit TXR1550OO, which discharges to Pecan Spring Branch. EPA’s file records it issued October 3, 2023 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 T508 DOSS TO HEADWATERS TL UPGRADE: its NPDES ID, its permit type and status, its dates, its address in Doss, Texas, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR1550OO.

Identity

Facility as filedT508 DOSS TO HEADWATERS TL UPGRADE
Permittee as filedIrby Construction Company
NPDES IDTXR1550OO
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedOctober 3, 2023
Expiration dateMarch 4, 2028
AddressDoss, TX 78618
Receiving waterPECAN SPRING BRANCH
SubwatershedMiddle Threadgill Creek (HUC 120902040506)

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 TXR1550OO.

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 TXR1550OO.

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, TXR1550OO.

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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 TXR1550OO there.

Nearby on the register

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

What this page shows

The T508 DOSS TO HEADWATERS TL UPGRADE permit is one of 2 NPDES permits in the Middle Threadgill Creek subwatershed, including this one. It is also one of 27 storm water construction permits in Gillespie County, and 11.1% of those 27 carry an earlier issue date than this permit, while none of its listed pollutants has a numeric limit or an effluent exceedance on file.