Clean Water Act discharge permit · NPDES TXR1554VT
SIENNA PARKWAY CULVERT EXTENSION, Missouri City, TX: NPDES TXR1554VT discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
SIENNA PARKWAY CULVERT EXTENSION, held by Toll-GTIS Property Owner LLC, holds NPDES permit TXR1554VT, which discharges to Oyster Creek Above Tidal. EPA’s file records it issued September 5, 2025 and expiring March 4, 2028. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
What the register holds for SIENNA PARKWAY CULVERT EXTENSION: its NPDES ID, its permit type and status, its dates, its address in Missouri City, Texas, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR1554VT.
Identity
| Facility as filed | SIENNA PARKWAY CULVERT EXTENSION |
|---|---|
| Permittee as filed | Toll-GTIS Property Owner LLC |
| NPDES ID | TXR1554VT |
| 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 | September 5, 2025 |
| Expiration date | March 4, 2028 |
| Address | Missouri City, TX 77459 |
| Receiving water | OYSTER CREEK ABOVE TIDAL |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Middle Oyster Creek (HUC 120402050200) |
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 TXR1554VT.
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 TXR1554VT.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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, TXR1554VT.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/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 TXR1554VT there.
Nearby on the register
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- Discharge permits in Texas
- Every permit record in Texas, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.