Clean Water Act discharge permit · NPDES TXR1543VC
TXDOT DAL 0196-02-126 IH35 AND BUS SH 121, Lewisville, TX: NPDES TXR1543VC discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
TXDOT DAL 0196-02-126 IH35 AND BUS SH 121, held by SEMA Construction, Inc., holds NPDES permit TXR1543VC, which discharges to Timber Creek Relief And Drainage To Timber Creek. EPA’s file records it issued July 2, 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 TXDOT DAL 0196-02-126 IH35 AND BUS SH 121: its NPDES ID, its permit type and status, its dates, its address in Lewisville, Texas, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR1543VC.
Identity
| Facility as filed | TXDOT DAL 0196-02-126 IH35 AND BUS SH 121 |
|---|---|
| Permittee as filed | SEMA Construction, Inc. |
| NPDES ID | TXR1543VC |
| 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 | July 2, 2025 |
| Expiration date | March 4, 2028 |
| Address | Lewisville, TX 75067 |
| Receiving water | TIMBER CREEK RELIEF AND DRAINAGE TO TIMBER CREEK |
| Subwatershed | Timber Creek (HUC 120301031002) |
Cited to the EPA ICIS-NPDES permit file (ECHO 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 TXR1543VC.
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 TXR1543VC.
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, TXR1543VC.
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- One watershed — $2,990/year
- One state — $4,990/year
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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 TXR1543VC there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.