Clean Water Act discharge permit · NPDES TX0118559
TENASKA GATEWAY GENERATION STATION, Rusk County, TX: NPDES TX0118559 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 18Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
TENASKA GATEWAY GENERATION STATION, held by TENASKA GATEWAY PARTNERS, LTD., holds NPDES permit TX0118559, which discharges to Toledo Bedn Reservoir. EPA’s file records it issued August 11, 2016 and expiring April 1, 2021.
TENASKA GATEWAY GENERATION STATION, Rusk County, Texas: Individual permit TX0118559, held by TENASKA GATEWAY PARTNERS, LTD.; Administratively continued (past its expiration date and still in force until reissued); issued August 11, 2016, term to April 1, 2021; discharges to TOLEDO BEDN RESERVOIR.
- Oil & Grease: 2 limits, 17 violations of any kind, 1 effluent exceedance, latest March 31, 2019, largest 14% over the limit.
- Flow, in conduit or thru treatment plant: 4 limits, 20 violations of any kind, 0 effluent exceedances.
- Solids, total suspended: 2 limits, 16 violations of any kind, 0 effluent exceedances.
- LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas: 4 limits, 10 violations of any kind, 0 effluent exceedances.
- NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas: 4 limits, 10 violations of any kind, 0 effluent exceedances.
- Chlorine, free available: 4 limits, 9 violations of any kind, 0 effluent exceedances.
- Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- LOAEC Lethal Static Renewal 48HR Acute Daphnia pulex: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- LOAEC Lethal Survival Static Renewal 48Hr Acute Pimephales promelas: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- pH: 4 limits, 6 violations of any kind, 0 effluent exceedances.
- Temperature, water deg. fahrenheit: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- LC50 Pass/Fail Static 24Hr Acute D. Pulex: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- LC50 Pass/Fail Static 24Hr Acute Pimephales promelas: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #1: 7 limits, 0 violations of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #2: 7 limits, 0 violations of any kind, 0 effluent exceedances.
- Chromium, total [as Cr]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Zinc, total [as Zn]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- February 13, 2026: No Further Action (State).
TENASKA GATEWAY GENERATION STATION among its neighbors
Its county holds 46, 7 of them major permits; TX0118559 is a major permit.
Other permits in the county
- AUSTIN AVE WAREHOUSE, Henderson: TXR1519UF, minor permit, discharging to SHAWNEE CK, permit term to March 4, 2028
- BFS HENDTXMF, Henderson: TXR05GM25, minor permit, permit term to August 13, 2026
- BUILDERS FIRSTSOURCE TRUSS - SHORTXMF, Henderson: TXR05GN12, minor permit, permit term to August 13, 2026
- BYNUM, Henderson: TXR05GP74, minor permit, permit term to August 13, 2026
- CARLISLE ISD WWTP, Price: TX0124371, minor permit, discharging to UNNAMED TRIB, JOHNSON CREEK, LAKE STRIKER, permit term to August 1, 2021
- CITY OF MOUNT ENTERPRISE WWTP, Mount Enterprise: TX0122173, minor permit, discharging to UNNAMED TRIB, LOCKLAND BRANCH, WOOTEN CREEK, permit term to August 1, 2021
- CITY OF NEW LONDON SEXTON CITY WWTP, New London: TX0114847, minor permit, discharging to UNNAMED CK; TIAWICHI CK; LAKE CHEROKEE, permit term to May 10, 2024
- CITY OF NEW LONDON SOUTH WWTF, New London: TX0087360, minor permit, discharging to UNNAMED TRIBUTARY,BOWLES CREEK,ALAN, permit term to August 1, 2021
- CITY OF OVERTON WWTP, Overton: TX0104272, minor permit, discharging to UNNAMED TRIB OF LITTLE RABBIT CK,SABINE RV ABOVE T, permit term to April 1, 2021
- CITY OF TATUM WWTP, Tatum: TX0022551, minor permit, discharging to TATUM CREEK; MARTIN CREEK;SABINE RV, permit term to April 1, 2021
Identity
| Facility as filed | TENASKA GATEWAY GENERATION STATION |
|---|---|
| Permittee as filed | TENASKA GATEWAY PARTNERS, LTD. |
| NPDES ID | TX0118559 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 11, 2016 |
| Expiration date | April 1, 2021 |
| Address | Rusk County, TX 75681 |
| Receiving water | TOLEDO BEDN RESERVOIR |
| Receiving water impaired | 303(D) Listed |
Effluent limits and exceedances
- 18Pollutants on file
- 18Under a numeric limit
- 14With a violation of any kind
- 1With 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 |
|---|---|---|---|---|---|
| Oil & Grease | 2 | 17 | 1 | March 31, 2019 | 14% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 20 | 0 | ||
| Solids, total suspended | 2 | 16 | 0 | ||
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 4 | 10 | 0 | ||
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 4 | 10 | 0 | ||
| Chlorine, free available | 4 | 9 | 0 | ||
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 4 | 8 | 0 | ||
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 4 | 8 | 0 | ||
| LOAEC Lethal Static Renewal 48HR Acute Daphnia pulex | 4 | 8 | 0 | ||
| LOAEC Lethal Survival Static Renewal 48Hr Acute Pimephales promelas | 4 | 8 | 0 | ||
| pH | 4 | 6 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 4 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute D. Pulex | 1 | 2 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | 1 | 2 | 0 | ||
| Whole effluent toxicity - retest #1 | 7 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 7 | 0 | 0 | ||
| Chromium, total [as Cr] | 1 | 0 | 0 | ||
| Zinc, total [as Zn] | 1 | 0 | 0 |
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES TX0118559.
Inspections
EPA’s inspection file holds no inspection for NPDES TX0118559.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
| Date | What EPA recorded | Agency |
|---|---|---|
| February 13, 2026 | No Further Action | State |
Watch this permit
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.