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Clean Water Act discharge permit · NPDES TX0077577

INEOS GREEN LAKE PLANT, Port Lavaca, TX: NPDES TX0077577 discharge permit, effluent exceedances, inspections, penalties

INEOS GREEN LAKE PLANT, held by INEOS NITRILES USA, LLC, holds NPDES permit TX0077577, which discharges to Victoria Barge Canal Tidal. EPA’s file records it issued August 25, 2015 and expiring February 1, 2020. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedINEOS GREEN LAKE PLANT
Permittee as filedINEOS NITRILES USA, LLC
NPDES IDTX0077577
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
IssuedAugust 25, 2015
Expiration dateFebruary 1, 2020
AddressPort Lavaca, TX 77979
Receiving waterVICTORIA BARGE CANAL TIDAL
SubwatershedBlack Bayou-Green Lake (HUC 121004030100)
SIC2869 – Industrial Organic Chemicals
Other EPA IDs (FRS)RCRA handler TXD000751172; ICIS-AIR source TX0000004805700013

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

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 79 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Copper, total [as Cu]22915August 31, 20183,970% over the limit
Acrylonitrile21610June 30, 2016680% over the limit
Oil & Grease6424April 30, 2022227% over the limit
Cyanide, free [amenable to chlorination]2124August 31, 20211,430% over the limit
Trichloroethylene2104December 31, 2004669% over the limit
Solids, total suspended2113November 30, 202318% over the limit
Hexachlorobenzene2102December 31, 2002669% over the limit
Chlorine, total residual192August 31, 2018100% over the limit
pH12751April 30, 2006
Carbon, tot organic [TOC]4291September 30, 200182% over the limit
Toluene271December 31, 200499,999% over the limit
Benzo[b]fluoranthene271December 31, 2004800% over the limit
Methylene chloride271December 31, 2002100% over the limit
Benzo[a]anthracene271December 31, 200499,999% over the limit
4,6-Dinitro-o-cresol271December 31, 200267% over the limit
Flow, in conduit or thru treatment plant12680
NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia2110
BOD, 5-day, 20 deg. C2100
Nitrogen, ammonia total [as N]2100
Phenol280
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)280
LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)280
LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia280
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)280
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia280
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia270
NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)270
NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia270
NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)270
Carbon tetrachloride260
1,2-Dichloroethane260
Chloroform260
Benzene260
Acenaphthylene260
Acenaphthene260
Anthracene260
Benzo[k]fluoranthene260
Benzo[a]pyrene260
Chlorobenzene260
Chrysene260
Diethyl phthalate260
Dimethyl phthalate260
Ethylbenzene260
Fluorene260
Hexachlorobutadiene260
Hexachloroethane260
Methyl chloride [Chloromethane]260
Nitrobenzene260
Phenanthrene260
Pyrene260
Tetrachloroethylene260
1,1-Dichloroethane260
1,1-Dichloroethylene260
1,1,1-Trichloroethane260
1,1,2-Trichloroethane260
1,2-Dichlorobenzene260
1,2-Dichloropropane260
trans-1,2-Dichloroethylene260
1,2,4-Trichlorobenzene260
1,3-Dichlorobenzene260

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

DateWhat EPA recordedAgency
June 17, 2026Permit Violations - Violation Specified in CommentST6
February 22, 2024Permit Violations - Violation Specified in CommentST6
October 6, 2021Permit Violations - Violation Specified in CommentST6
August 2, 2018Permit Violations - Violation Specified in CommentST6

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.

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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 TX0077577 for the INEOS GREEN LAKE PLANT in Port Lavaca, TX, held by INEOS NITRILES USA, LLC, with its status shown as administratively continued. The page lists 78 for the discharger class, 15 pollutants under a numeric limit, and 15 pollutants with an effluent exceedance.