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Clean Water Act discharge permit · NPDES TX0067890

ENTERGY TEXAS LEWIS CREEK PLANT, Willis, TX: NPDES TX0067890 discharge permit, effluent exceedances, inspections, penalties

ENTERGY TEXAS LEWIS CREEK PLANT, held by ENTERGY TEXAS, INC., holds NPDES permit TX0067890, which discharges to Lewis Creek Reservoir, Lewis Creek,. EPA’s file records it issued June 6, 2014 and expiring June 1, 2019.

ENTERGY TEXAS LEWIS CREEK PLANT, Willis, Texas: Individual permit TX0067890, held by ENTERGY TEXAS, INC.; Administratively continued (past its expiration date and still in force until reissued); issued June 6, 2014, term to June 1, 2019; discharges to LEWIS CREEK RESERVOIR, LEWIS CREEK,.

  • pH: 2 limits, 6 violations of any kind, 4 effluent exceedances, latest March 31, 2024.
  • Oil & Grease: 2 limits, 4 violations of any kind, 2 effluent exceedances, latest January 31, 2012, largest 15% over the limit.
  • Solids, total suspended: 2 limits, 3 violations of any kind, 1 effluent exceedance, latest July 31, 2007, largest 77% over the limit.
  • Whole effluent toxicity: 4 limits, 8 violations of any kind, 0 effluent exceedances.
  • Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas: 4 limits, 7 violations of any kind, 0 effluent exceedances.
  • NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas: 4 limits, 7 violations of any kind, 0 effluent exceedances.
  • NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas: 4 limits, 7 violations of any kind, 0 effluent exceedances.
  • Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas: 4 limits, 7 violations of any kind, 0 effluent exceedances.
  • LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas: 4 limits, 6 violations of any kind, 0 effluent exceedances.
  • LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas: 4 limits, 6 violations of any kind, 0 effluent exceedances.
  • Chlorine, total residual: 2 limits, 6 violations of any kind, 0 effluent exceedances.
  • Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 6 violations of any kind, 0 effluent exceedances.
  • NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 6 violations of any kind, 0 effluent exceedances.
  • NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 6 violations of any kind, 0 effluent exceedances.
  • Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 6 violations of any kind, 0 effluent exceedances.
  • LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 6 violations of any kind, 0 effluent exceedances.
  • LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 6 violations of any kind, 0 effluent exceedances.
  • Flow, in conduit or thru treatment plant: 4 limits, 3 violations of any kind, 0 effluent exceedances.
  • Oxygen, dissolved [DO]: 0 limits, 1 violation of any kind, 0 effluent exceedances.
  • Whole effluent toxicity - retest #1: 6 limits, 0 violations of any kind, 0 effluent exceedances.
  • Whole effluent toxicity - retest #2: 6 limits, 0 violations of any kind, 0 effluent exceedances.
  • Temperature, water deg. fahrenheit: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • LC50 Pass/Fail Static 24Hr Acute D. Pulex: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • LC50 Pass/Fail Static 24Hr Acute Pimephales promelas: 2 limits, 0 violations of any kind, 0 effluent exceedances.

ENTERGY TEXAS LEWIS CREEK PLANT among its neighbors

EPA’s permit file holds 22 discharge permits in the Little Lake Creek-Conroe Lake subwatershed (HUC 120401010205), TX0067890 among them. Its county holds 1,439, 16 of them major permits; TX0067890 is a major permit.

Other permits in the Little Lake Creek-Conroe Lake subwatershed (HUC 120401010205)

  • BENTWATER, Montgomery: TXR1593VE, minor permit, discharging to W FORK SAN JACINTO RIVER, permit term to March 4, 2028
  • BENTWOOD FARMS, Montgomery: TXR1569OQ, minor permit, discharging to SAN JACINTO RIVER BASIN, permit term to March 4, 2028
  • CEMEX WILLIS READY MIX PLANT, Willis: TXG111989, minor permit, discharging to LAKE CONROE, permit term to November 7, 2021
  • CHANEY WWTP, Montgomery: TX0134414, minor permit, discharging to Lake Conroe, permit term to September 29, 2025
  • FM 1097 DEVELOPMENT WWTP, Montgomery: TX0146595, minor permit, discharging to Lake Conroe, permit term to July 31, 2030
  • GATED RENTALS - FM 1097, Montgomery: TXR1562XI, minor permit, discharging to UNKNOWN TRIBUTARY, permit term to March 4, 2028
  • JIMMY COLE RENTALS WWTP, Montgomery: TX0139726, minor permit, discharging to UNNAMED TRIB OF LITTLE LAKE CRK;LAKE CONROE, permit term to May 26, 2025
  • LAKE CELESTINE PHASE 1, Montgomery: TXR1523UW, minor permit, discharging to LAKE CONROE, permit term to March 4, 2028
  • LAKE CELESTINE WWTP1 & LIFT STATION, Montgomery: TXR1501UP, minor permit, discharging to LAKE CONROE, permit term to March 4, 2028
  • LAKE CONROE HILLS MUD WWTP, Willis: TX0054364, minor permit, discharging to LAKE CONROE, permit term to June 1, 2022

Identity

Facility as filedENTERGY TEXAS LEWIS CREEK PLANT
Permittee as filedENTERGY TEXAS, INC.
NPDES IDTX0067890
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typeNot a publicly owned treatment works
IssuedJune 6, 2014
Expiration dateJune 1, 2019
AddressWillis, TX 77318
Receiving waterLEWIS CREEK RESERVOIR, LEWIS CREEK,
SubwatershedLittle Lake Creek-Conroe Lake (HUC 120401010205)
SIC4911 – Electric Services
Other EPA IDs (FRS)RCRA handler TXD054447438; ICIS-AIR source TX0000004833900007

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
pH264March 31, 2024
Oil & Grease242January 31, 201215% over the limit
Solids, total suspended231July 31, 200777% over the limit
Whole effluent toxicity480
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas470
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas470
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas470
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas470
LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas460
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas460
Chlorine, total residual260
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia260
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia260
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia260
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia260
LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia260
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia260
Flow, in conduit or thru treatment plant430
Oxygen, dissolved [DO]010
Whole effluent toxicity - retest #1600
Whole effluent toxicity - retest #2600
Temperature, water deg. fahrenheit200
LC50 Pass/Fail Static 24Hr Acute D. Pulex200
LC50 Pass/Fail Static 24Hr Acute Pimephales promelas200

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES TX0067890.

Inspections

EPA’s inspection file holds no inspection for NPDES TX0067890.

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

EPA’s informal enforcement file holds no action for NPDES TX0067890.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES TX0067890 for the Entergy Texas Lewis Creek Plant in Willis, TX, held by Entergy Texas, Inc., with a status of administratively continued and a Major discharger class of 23. The page lists 3 pollutants under a numeric limit and 3 pollutants with an effluent exceedance.