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Clean Water Act discharge permit · NPDES TX0104876

OXYCHEM INGLESIDE PLANT, Gregory, TX: NPDES TX0104876 discharge permit, effluent exceedances, inspections, penalties

OXYCHEM INGLESIDE PLANT, held by OCCIDENTAL CHEMIAL CORPORATION, holds NPDES permit TX0104876, which discharges to Submerged Pipeline Into La Quinta Channel, Corpus. EPA’s file records it issued February 12, 2016 and expiring April 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 filedOXYCHEM INGLESIDE PLANT
Permittee as filedOCCIDENTAL CHEMIAL CORPORATION
NPDES IDTX0104876
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
IssuedFebruary 12, 2016
Expiration dateApril 1, 2020
AddressGregory, TX 78359
Receiving waterSUBMERGED PIPELINE INTO LA QUINTA CHANNEL, CORPUS
SIC2869 – Industrial Organic Chemicals
Other EPA IDs (FRS)RCRA handler TXD982286932; ICIS-AIR source TX0000004840900044

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 82 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
BOD, 5-day, 20 deg. C699July 31, 2015114% over the limit
Hexachlorobenzene466June 30, 2005395% over the limit
Solids, total suspended643September 30, 202016% over the limit
1,2-Dichloroethane422November 30, 2022997% over the limit
Methylene chloride411June 30, 20036% over the limit
Chlorine, total residual211April 30, 202140% over the limit
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia450
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia430
NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia430
NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia430
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia430
LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia430
Copper, total [as Cu]420
Chloroethane420
Flow, in conduit or thru treatment plant800
Whole effluent toxicity - retest #1500
Whole effluent toxicity - retest #2500
Carbon tetrachloride400
Chloroform400
Toluene400
Benzene400
Acenaphthylene400
Acenaphthene400
Acrylonitrile400
Anthracene400
Benzo[b]fluoranthene400
Benzo[k]fluoranthene400
Benzo[a]pyrene400
Chlorobenzene400
Chrysene400
Diethyl phthalate400
Dimethyl phthalate400
Ethylbenzene400
Fluoranthene400
Fluorene400
Hexachlorobutadiene400
Hexachloroethane400
Methyl chloride [Chloromethane]400
Nitrobenzene400
Phenanthrene400
Pyrene400
Tetrachloroethylene400
1,1-Dichloroethane400
1,1-Dichloroethylene400
1,1,1-Trichloroethane400
1,1,2-Trichloroethane400
Benzo[a]anthracene400
1,2-Dichlorobenzene400
1,2-Dichloropropane400
trans-1,2-Dichloroethylene400
1,2,4-Trichlorobenzene400
1,3-Dichlorobenzene400
1,4-Dichlorobenzene400
2-Chlorophenol400
2-Nitrophenol400
2,4-Dichlorophenol400
2,4-Dimethylphenol400
2,4-Dinitrotoluene400
2,4-Dinitrophenol400
2,6-Dinitrotoluene400

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
March 25, 2025Permit Violations - Violation Specified in CommentST6
June 15, 2023Permit Violations - Violation Specified in CommentST6
November 1, 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 TX0104876 for the OXYCHEM INGLESIDE PLANT in Gregory, TX, held by OCCIDENTAL CHEMIAL CORPORATION, with a permit status of administratively continued and a discharger class of Major. The page lists 82 as the figure for pollutants under a numeric limit and 6 as the figure for pollutants with an effluent exceedance.