Clean Water Act discharge permit · NPDES TX0063703
LEON CREEK STEAM ELECTRIC STATION, San Antonio, TX: NPDES TX0063703 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
LEON CREEK STEAM ELECTRIC STATION, held by CITY PUBLIC SERVICE OF SAN ANTONIO, holds NPDES permit TX0063703, which discharges to Lower Leon Creek. EPA’s file records it issued February 19, 2020 and expiring February 19, 2025. 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.
Identity
| Facility as filed | LEON CREEK STEAM ELECTRIC STATION |
|---|---|
| Permittee as filed | CITY PUBLIC SERVICE OF SAN ANTONIO |
| NPDES ID | TX0063703 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | February 19, 2020 |
| Expiration date | February 19, 2025 |
| Address | San Antonio, TX 78211 |
| Receiving water | LOWER LEON CREEK |
| Subwatershed | Lower Leon Creek (HUC 121003020406) |
| SIC | 4911 – Electric Services |
| Other EPA IDs (FRS) | RCRA handler TXD000815035; ICIS-AIR source TX0000004802900003 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 12Pollutants on file
- 6Under a numeric limit
- 12With a violation of any kind
- 4With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| pH | 2 | 13 | 3 | March 31, 2005 | |
| Flow, in conduit or thru treatment plant | 2 | 16 | 1 | September 30, 2018 | 711% over the limit |
| Oil & Grease | 2 | 9 | 1 | November 30, 2008 | 55% over the limit |
| Solids, total suspended | 2 | 7 | 1 | August 31, 2004 | 20% over the limit |
| Chlorine, free available | 4 | 136 | 0 | ||
| Copper, total [as Cu] | 0 | 48 | 0 | ||
| Iron, total [as Fe] | 0 | 44 | 0 | ||
| Chloride [as Cl] | 0 | 6 | 0 | ||
| Sulfate, total [as SO4] | 0 | 6 | 0 | ||
| Solids, total dissolved | 0 | 6 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 4 | 0 | ||
| Phosphate, total [as PO4] | 0 | 1 | 0 |
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 TX0063703.
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, TX0063703.
Start the watch
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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 TX0063703 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.