CEDAR BAYOU ELECTRIC GENERATING STATION, City Of Baytown, TX: NPDES TX0006459 discharge permit, effluent exceedances, inspections, penalties

CEDAR BAYOU ELECTRIC GENERATING STATION, City Of Baytown, Texas: Individual permit TX0006459, held by NRG TEXAS POWER LLC; Administratively continued; issued April 29, 2009, term to August 1, 2013; discharges to TRINITY BAY.

15 of the 26 pollutants listed for NPDES TX0006459 have no violation or effluent exceedance.

• Solids, total suspended: 12 limits, 4 violations of any kind, 4 effluent exceedances, latest May 31, 2022, largest 30% over the limit.
• pH: 12 limits, 2 violations of any kind, 2 effluent exceedances, latest July 31, 2005.
• Oil & Grease: 8 limits, 2 violations of any kind, 2 effluent exceedances, latest January 31, 2023, largest 80% over the limit.
• Enterococci: 0 limits, 2 violations of any kind, 2 effluent exceedances, latest November 30, 2024, largest 99,999% over the limit.
• Chlorine, total residual: 4 limits, 8 violations of any kind, 1 effluent exceedance, latest September 30, 2004, largest 90% over the limit.
• Whole effluent toxicity - retest #1: 7 limits, 2 violations of any kind.
• Whole effluent toxicity - retest #2: 7 limits, 2 violations of any kind.
• LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 4 limits, 2 violations of any kind.
• LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia: 4 limits, 2 violations of any kind.
• LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia): 4 limits, 2 violations of any kind.
• LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia: 4 limits, 2 violations of any kind.
• Flow, in conduit or thru treatment plant: 14 limits.
• BOD, 5-day, 20 deg. C: 4 limits.
• Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia): 4 limits.
• Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia: 4 limits.
• NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 4 limits.
• NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia: 4 limits.
• NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 4 limits.
• NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia: 4 limits.
• Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 4 limits.
• Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia: 4 limits.
• Temperature, water deg. fahrenheit: 2 limits.
• Copper, total [as Cu]: 2 limits.
• Iron, total [as Fe]: 2 limits.
• LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia): 1 limit.
• LC50 Pass/Fail Static 24Hr Acute Menidia menidia: 1 limit.

• June 17, 2025: Permit Violations - Violation Specified in Comment (ST6).

Other permits held by NRG TEXAS POWER LLC

• SR BERTRON ELECTRIC GENERATING STATION, Houston: TX0006378, issued 2014-07-18
• GREENS BAYOU ELECTRIC GENERATING STATION, Houston: TX0006386, issued 2018-02-05
• W A PARISH STEAM ELECTRIC GENERATING STATION, Thompsons: TX0006394, issued 2011-06-21
• TH WHARTON ELECTRIC GENERATING STATION, Houston: TX0006408, issued 2018-09-17
• LIMESTONE ELECTRIC GENERATING STATION, Limestone County: TX0082651, issued 2015-05-12
• W A PARISH ELECTIRC GENERATING STATION, Thompsons: TXR05V666, issued 2021-11-01
• LIMESTONE ELECTRIC GENERATING STATION, Jewett: TXR05V737, issued 2021-10-28
• CEDAR BAYOU ELECTRIC GENERATING STATION, Baytown: TXR05V797, issued 2021-11-08

CEDAR BAYOU ELECTRIC GENERATING STATION among its neighbors

97 discharge permits are in the Cedar Point Lateral-Cedar Bayou subwatershed (HUC 120402030106); TX0006459 is one. Its county: 197, 10 major; TX0006459 is major permit.

Other permits in the Cedar Point Lateral-Cedar Bayou subwatershed (HUC 120402030106)

• 230042 DRAINAGE IMPROVEMENTS IN THE CEDAR BAYOU, Baytown: TXR1502NG, minor, term to 2028-03-04
• 99 BARGE TERMINAL, Baytown: TXR05GE48, minor, term to 2026-08-13
• ABUNDIA GLOBAL IMPACT GROUP, Baytown Etj: TXR1502XJ, minor, term to 2028-03-04
• ALAMO CONCRETE PRODUCTS PLANT #104, Baytown: TXG111449, minor, term to 2021-11-07
• AMERIPORT 13, Baytown: TXR1522YF, minor, term to 2028-03-04
• BAYER BAYTOWN PLANT, Chambers County: TX0002798, major, term to 2022-07-01
• BAYTOWN 146 AKA VELOCIS BAYTOWN, Baytown: TXR1503YG, minor, term to 2028-03-04
• BAYTOWN AREA WATER AUTHORITY EAST SURFACE WTP PHASE 2 EXPAN, Baytown: TXR1542XF, minor, term to 2028-03-04
• BAYTOWN GROVE, Baytown: TXR1530TV, minor, term to 2028-03-04
• BAYTOWN PLANT, Chambers County: TXG110890, minor, term to 2011-11-07