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Clean Water Act discharge permit · NPDES TXR1559YR

BLACKHAWK TRAIL, Pflugerville, TX: NPDES TXR1559YR discharge permit, effluent exceedances, inspections, penalties

BLACKHAWK TRAIL, held by Mills Construction, LLC, holds NPDES permit TXR1559YR, which discharges to Brushy Creek. EPA’s file records it issued June 26, 2026 and expiring March 4, 2028.

BLACKHAWK TRAIL, Pflugerville, Texas: Coverage under a general permit TXR1559YR, held by Mills Construction, LLC; Construction stormwater; Effective; issued June 26, 2026, term to March 4, 2028; discharges to BRUSHY CREEK.

Texas holds 23,986 Construction stormwater coverages of this permit type in EPA’s file; 22,144 were issued before TXR1559YR. Mills Construction, LLC holds 3 permits in Texas.

Other permits held by Mills Construction, LLC

Coverages issued nearest TXR1559YR

BLACKHAWK TRAIL among its neighbors

EPA’s permit file holds 122 discharge permits in the Upper Wilbarger Creek subwatershed (HUC 120903010103), TXR1559YR among them. Its county holds 1,099, 15 of them major permits; TXR1559YR is a minor permit.

Other permits in the Upper Wilbarger Creek subwatershed (HUC 120903010103)

  • 1849 PARK PHASE 2, Pflugerville: TXR1572SG, minor permit, discharging to WILBARGER CREEK, permit term to March 4, 2028
  • AMAZONCOM SERVICES AUS2, Pflugerville: TXR05FC08, minor permit, permit term to August 13, 2026
  • AMAZONCOM SERVICES STX6, Pflugerville: TXR05FX38, minor permit, permit term to August 13, 2026
  • ARS CROSSING PFLUGERVILLE, Pflugerville: TXR1521VX, minor permit, discharging to WILBARGER CREEK, permit term to March 4, 2028
  • ASCO MANOR NEW PARKING AND DRAINAGE IMPROVEMENTS, Manor: TXR15311H, minor permit, discharging to WILBARGER CREEK 1434D, permit term to March 5, 2023
  • AUSTIN DATA CENTER 2, Pflugerville: TXR1558PE, minor permit, discharging to WILBARGER CREEK, permit term to March 4, 2028
  • AUSTIN IRON, Manor: TXR1567MA, minor permit, discharging to WILBARGER CREEK, permit term to March 4, 2028
  • BLACKHAWK, Pflugerville: TXR1529TF, minor permit, discharging to COTTONWOOD CREEK, permit term to March 4, 2028
  • BRIAR CREEK WWTP, Manor: TX0117315, minor permit, discharging to WILBARGER CREEK, COLORADO RIVER ABO, permit term to September 1, 2019
  • CARMEL, Pflugerville: TXR15953L, minor permit, permit term to March 5, 2023

What the register holds for BLACKHAWK TRAIL: its NPDES ID, its permit type and status, its dates, its address in Pflugerville, Texas, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR1559YR.

Identity

Facility as filedBLACKHAWK TRAIL
Permittee as filedMills Construction, LLC
NPDES IDTXR1559YR
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedJune 26, 2026
Expiration dateMarch 4, 2028
AddressPflugerville, TX 78660
Receiving waterBRUSHY CREEK
SubwatershedUpper Wilbarger Creek (HUC 120903010103)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES TXR1559YR.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES TXR1559YR.

Inspections

EPA’s inspection file holds no inspection for NPDES TXR1559YR.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES TXR1559YR.

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, TXR1559YR.

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  • One state — $4,990/year
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Nearby on the register

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

What this page shows

BLACKHAWK TRAIL is one of 894 storm water construction permits on EPA's NPDES register in Travis County, and 90.5% of those permits have an earlier issue date than this permit. The permit is also one of 122 NPDES permits in the Upper Wilbarger Creek subwatershed (HUC 120903010103), and 0.3% of the 894 storm water construction permits in Travis County have a violation on file.