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Clean Water Act discharge permit · NPDES TXR1524SS

COTTONWOOD, Hutto, TX: NPDES TXR1524SS discharge permit, effluent exceedances, inspections, penalties

COTTONWOOD, held by Groundworks Ess, LLC, holds NPDES permit TXR1524SS, which discharges to Cottonwood Creek. EPA’s file records it issued November 12, 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 COTTONWOOD: its NPDES ID, its permit type and status, its dates, its address in Hutto, Texas, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR1524SS.

Identity

Facility as filedCOTTONWOOD
Permittee as filedGroundworks Ess, LLC
NPDES IDTXR1524SS
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedNovember 12, 2024
Expiration dateMarch 4, 2028
AddressHutto, TX 78634
Receiving waterCOTTONWOOD CREEK
SubwatershedCottonwood Creek-Brushy Creek (HUC 120702050404)

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 TXR1524SS.

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 TXR1524SS.

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, TXR1524SS.

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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 TXR1524SS there.

Nearby on the register

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

What this page shows

The COTTONWOOD storm water construction permit, filed under the permittee Groundworks Ess, LLC in Hutto, Williamson County, Texas, is one of 755 such permits in that county on EPA's NPDES register. Only 0.3% of those 755 permits have a violation on file, and this permit has none of the recorded pollutant limit or effluent exceedance entries. The permit sits within the Cottonwood Creek-Brushy Creek subwatershed, where 111 NPDES permits, this one included, are registered, and 29.7% of the county's 755 storm water construction permits carry an earlier issue date than its November 12, 2024 issuance.