Clean Water Act discharge permit · NPDES TXR1587WM
STONE GARDEN UNIT 4B, San Antonio, TX: NPDES TXR1587WM discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
STONE GARDEN UNIT 4B, held by City Public Service Energy, holds NPDES permit TXR1587WM, which discharges to Tributary Of San Antonio River. EPA’s file records it issued November 18, 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 STONE GARDEN UNIT 4B: its NPDES ID, its permit type and status, its dates, its address in San Antonio, Texas, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR1587WM.
Identity
| Facility as filed | STONE GARDEN UNIT 4B |
|---|---|
| Permittee as filed | City Public Service Energy |
| NPDES ID | TXR1587WM |
| 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 | November 18, 2025 |
| Expiration date | March 4, 2028 |
| Address | San Antonio, TX 78223 |
| Receiving water | TRIBUTARY OF SAN ANTONIO RIVER |
| Subwatershed | Braunig Lake-San Antonio River (HUC 121003010301) |
| SIC | 4911 – Electric Services |
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 TXR1587WM.
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 TXR1587WM.
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, TXR1587WM.
Start the watch
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- One watershed — $2,990/year
- One state — $4,990/year
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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 TXR1587WM there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.