Clean Water Act discharge permit · NPDES TXR1508WT

GATTIS SCHOOL ROAD SEG 6, Round Rock, TX: NPDES TXR1508WT discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance

GATTIS SCHOOL ROAD SEG 6, held by M. A. Smith Contracting Company, Inc., holds NPDES permit TXR1508WT, which discharges to Dyer Branch Creek. EPA’s file records it issued December 15, 2025 and expiring March 4, 2028. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for GATTIS SCHOOL ROAD SEG 6: its NPDES ID, its permit type and status, its dates, its address in Round Rock, Texas, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR1508WT.

Identity

Facility as filed	GATTIS SCHOOL ROAD SEG 6
Permittee as filed	M. A. Smith Contracting Company, Inc.
NPDES ID	TXR1508WT
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Construction stormwater
Issued	December 15, 2025
Expiration date	March 4, 2028
Address	Round Rock, TX 78664
Receiving water	DYER BRANCH CREEK
Subwatershed	Chandler Branch-Brushy Creek (HUC 120702050403)
SIC	1611 – Highway And Street Construction

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

0Pollutants on file
0Under a numeric limit
0With a violation of any kind
0With an effluent exceedance

EPA’s limits and effluent violation files hold no pollutant row for NPDES TXR1508WT.

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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES TXR1508WT.

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, TXR1508WT.

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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 TXR1508WT there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

The GATTIS SCHOOL ROAD SEG 6 storm water construction permit in Round Rock, Williamson County, is one of 755 such permits in the county, and it sits in the Chandler Branch-Brushy Creek subwatershed, which holds 52 NPDES permits including this one. Among those 755 county permits, 63.6% were issued earlier than this one, and only 0.3% carry a violation on file, while this permit itself records zero pollutants under a numeric limit and zero effluent exceedances.