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Clean Water Act discharge permit · NPDES TX0072320

INEOS AMERICAS PASADENA SITE, Pasadena, TX: NPDES TX0072320 discharge permit, effluent exceedances, inspections, penalties

INEOS AMERICAS PASADENA SITE, held by INEOS AMERICAS LLC, holds NPDES permit TX0072320, which discharges to Houston Ship Channel Tidal. EPA’s file records it issued October 21, 2019 and expiring October 21, 2024.

INEOS AMERICAS PASADENA SITE, Pasadena, Texas: Individual permit TX0072320, held by INEOS AMERICAS LLC; Effective; issued October 21, 2019, term to October 21, 2024; discharges to HOUSTON SHIP CHANNEL TIDAL.

  • Enterococci: 2 limits, 6 violations of any kind, 5 effluent exceedances, latest September 30, 2018, largest 2,227% over the limit.
  • Oxygen demand, chem. [high level] [COD]: 5 limits, 3 violations of any kind, 1 effluent exceedance, latest April 30, 2015, largest 23% over the limit.
  • Phenol: 2 limits, 3 violations of any kind, 1 effluent exceedance, latest August 31, 2023, largest 280% over the limit.
  • Flow, in conduit or thru treatment plant: 10 limits, 14 violations of any kind, 0 effluent exceedances.
  • LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia): 4 limits, 10 violations of any kind, 0 effluent exceedances.
  • Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia): 4 limits, 8 violations of any kind, 0 effluent exceedances.
  • NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 4 limits, 8 violations of any kind, 0 effluent exceedances.
  • NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 4 limits, 8 violations of any kind, 0 effluent exceedances.
  • Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 4 limits, 8 violations of any kind, 0 effluent exceedances.
  • LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 4 limits, 8 violations of any kind, 0 effluent exceedances.
  • Acetone: 1 limit, 7 violations of any kind, 0 effluent exceedances.
  • pH: 10 limits, 6 violations of any kind, 0 effluent exceedances.
  • LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia: 4 limits, 4 violations of any kind, 0 effluent exceedances.
  • LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia: 4 limits, 4 violations of any kind, 0 effluent exceedances.
  • Zinc, total [as Zn]: 3 limits, 4 violations of any kind, 0 effluent exceedances.
  • Nickel, total [as Ni]: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Carbon tetrachloride: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • 1,2-Dichloroethane: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Chloroform: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Toluene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Acenaphthylene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Acenaphthene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Acrylonitrile: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Anthracene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Benzo[k]fluoranthene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Benzo[a]pyrene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Chlorobenzene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Chrysene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Diethyl phthalate: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Dimethyl phthalate: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Ethylbenzene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Fluoranthene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Fluorene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Hexachlorobutadiene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Hexachloroethane: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Methyl chloride [Chloromethane]: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Methylene chloride: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Nitrobenzene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Phenanthrene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Pyrene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Tetrachloroethylene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • 1,1-Dichloroethane: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • 1,1-Dichloroethylene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • 1,1,1-Trichloroethane: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • 1,1,2-Trichloroethane: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Benzo[a]anthracene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • 1,2-Dichlorobenzene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • 1,2-Dichloropropane: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • trans-1,2-Dichloroethylene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • 1,2,4-Trichlorobenzene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • 1,3-Dichlorobenzene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • 1,4-Dichlorobenzene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • 2-Chlorophenol: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • 2-Nitrophenol: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • 2,4-Dichlorophenol: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • 2,4-Dimethylphenol: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • 2,4-Dinitrotoluene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • 2,4-Dinitrophenol: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • 2,6-Dinitrotoluene: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • 4-Nitrophenol: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • May 8, 2026: Phone Call/ EMAIL (State).
  • May 4, 2026: Phone Call/ EMAIL (State).
  • February 6, 2025: Permit Violations - Violation Specified in Comment (ST6).

INEOS AMERICAS PASADENA SITE among its neighbors

EPA’s permit file holds 301 discharge permits in the Vince Bayou-Buffalo Bayou subwatershed (HUC 120401040703), TX0072320 among them. Its county holds 4,455, 195 of them major permits; TX0072320 is a major permit.

Other permits in the Vince Bayou-Buffalo Bayou subwatershed (HUC 120401040703)

  • 019-HOU3-22 HOUSTON CONCRETE SILOS, Houston: TXR1594NZ, minor permit, discharging to HOUSTON SHIP CHANNEL/BUFFALO BAYOU TIDAL, permit term to March 4, 2028
  • 1111 FANNIN, Houston: TXR1556LZ, minor permit, permit term to March 4, 2028
  • 225 RAIL YARD, Pasadena: TXR15425W, minor permit, discharging to HOUSTON SHIP CHANNEL/BUFFALO BAYOU TIDAL, permit term to March 4, 2023
  • 500 MAYO SHELL ROAD, Galena Park: TXR05GS62, minor permit, permit term to August 13, 2026
  • 69TH ST WWTP, Houston: TX0096172, major permit, discharging to Buffalo Bayou, permit term to September 1, 2002
  • 8815 MISSISSIPPI, Houston: TXR05GD86, minor permit, permit term to August 13, 2026
  • 8825 MISSISSIPPI STREET, Houston: TXR05GE47, minor permit, permit term to August 13, 2026
  • A AND A METALS, Houston: TXRNEBJ94, minor permit, permit term to August 13, 2026
  • AEI RED BLUFF, Pasadena: TXRNECR17, minor permit, permit term to August 13, 2026
  • AES DEEPWATER COGENERATION PLA, Pasadena: TX0128830, minor permit, discharging to UNNAMED DITCH, VINCE BAYOU TIDAL PO, permit term to September 1, 2017

Identity

Facility as filedINEOS AMERICAS PASADENA SITE
Permittee as filedINEOS AMERICAS LLC
NPDES IDTX0072320
Permit statusEffective
Permit typeIndividual permit
Discharger classMajor discharger
Facility typeNot a publicly owned treatment works
IssuedOctober 21, 2019
Expiration dateOctober 21, 2024
AddressPasadena, TX 77503
Receiving waterHOUSTON SHIP CHANNEL TIDAL
Receiving water impaired303(D) Listed
SubwatershedVince Bayou-Buffalo Bayou (HUC 120401040703)
SIC2865 – Cyclic Crudes And Intermediates
Other EPA IDs (FRS)RCRA handler TXD093565653; ICIS-AIR source TX0000004820100186

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; the 60 with the most exceedances of 96 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Enterococci265September 30, 20182,227% over the limit
Oxygen demand, chem. [high level] [COD]531April 30, 201523% over the limit
Phenol231August 31, 2023280% over the limit
Flow, in conduit or thru treatment plant10140
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)4100
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)480
NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)480
NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)480
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)480
LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)480
Acetone170
pH1060
LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia440
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia440
Zinc, total [as Zn]340
Nickel, total [as Ni]240
Carbon tetrachloride240
1,2-Dichloroethane240
Chloroform240
Toluene240
Acenaphthylene240
Acenaphthene240
Acrylonitrile240
Anthracene240
Benzo[k]fluoranthene240
Benzo[a]pyrene240
Chlorobenzene240
Chrysene240
Diethyl phthalate240
Dimethyl phthalate240
Ethylbenzene240
Fluoranthene240
Fluorene240
Hexachlorobutadiene240
Hexachloroethane240
Methyl chloride [Chloromethane]240
Methylene chloride240
Nitrobenzene240
Phenanthrene240
Pyrene240
Tetrachloroethylene240
1,1-Dichloroethane240
1,1-Dichloroethylene240
1,1,1-Trichloroethane240
1,1,2-Trichloroethane240
Benzo[a]anthracene240
1,2-Dichlorobenzene240
1,2-Dichloropropane240
trans-1,2-Dichloroethylene240
1,2,4-Trichlorobenzene240
1,3-Dichlorobenzene240
1,4-Dichlorobenzene240
2-Chlorophenol240
2-Nitrophenol240
2,4-Dichlorophenol240
2,4-Dimethylphenol240
2,4-Dinitrotoluene240
2,4-Dinitrophenol240
2,6-Dinitrotoluene240
4-Nitrophenol240

Inspections, violations and enforcement

DateWhat EPA recordedAgency
February 6, 2025Permit Violations - Violation Specified in CommentST6

Inspections

EPA’s inspection file holds no inspection for NPDES TX0072320.

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

DateWhat EPA recordedAgency
May 8, 2026Phone Call/ EMAILState
May 4, 2026Phone Call/ EMAILState

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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 NPDES permit TX0072320, held by INEOS AMERICAS LLC for the INEOS AMERICAS PASADENA SITE in Pasadena, TX, with an effective status and a Major Discharger class. The permit lists 88 pollutants under a numeric limit and 3 pollutants with an effluent exceedance, with the permit issued October 21, 2019 and expiring October 21, 2024.