Clean Water Act discharge permit · NPDES TX0005118
SAM RAYBURN POWER PLANT, Nursery, TX: NPDES TX0005118 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
SAM RAYBURN POWER PLANT, held by SOUTH TEXAS ELECTRIC COOPERATIVE, INC, holds NPDES permit TX0005118, which discharges to Guadalupe River Below San Marcos River. EPA’s file records it issued December 16, 2016 and expiring February 1, 2020. 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.
Identity
| Facility as filed | SAM RAYBURN POWER PLANT |
|---|---|
| Permittee as filed | SOUTH TEXAS ELECTRIC COOPERATIVE, INC |
| NPDES ID | TX0005118 |
| 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 | December 16, 2016 |
| Expiration date | February 1, 2020 |
| Address | Nursery, TX 77976 |
| Receiving water | GUADALUPE RIVER BELOW SAN MARCOS RIVER |
| Subwatershed | Mission Creek-Guadalupe River (HUC 121002040106) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 10Pollutants on file
- 9Under a numeric limit
- 9With a violation of any kind
- 5With 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 |
|---|---|---|---|---|---|
| E. coli | 2 | 16 | 14 | December 31, 2024 | 99,999% over the limit |
| Solids, total suspended | 2 | 17 | 13 | March 31, 2015 | 310% over the limit |
| Oil & Grease | 2 | 12 | 4 | January 31, 2016 | 300% over the limit |
| Flow, in conduit or thru treatment plant | 6 | 20 | 2 | September 30, 2006 | 379% over the limit |
| Chlorine, free available | 2 | 3 | 1 | August 31, 2006 | 270% over the limit |
| Chlorine, total residual | 2 | 30 | 0 | ||
| pH | 2 | 12 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 6 | 0 | ||
| Coliform, fecal general | 0 | 2 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 0 | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| October 30, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| February 6, 2019 | Permit Violations - Violation Specified in Comment | ST6 |
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, TX0005118.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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 TX0005118 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.