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Clean Water Act discharge permit · NPDES LA0069612

NOVA CHEMICALS OLEFINS, LLC, Geismar, LA: NPDES LA0069612 discharge permit, effluent exceedances, inspections, penalties

NOVA CHEMICALS OLEFINS, LLC, held by NOVA CHEMICALS OLEFINS LLC, holds NPDES permit LA0069612, which discharges to Miss River; Bayou Manchac. EPA’s file records it issued September 18, 2018 and expiring September 30, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedNOVA CHEMICALS OLEFINS, LLC
Permittee as filedNOVA CHEMICALS OLEFINS LLC
NPDES IDLA0069612
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
IssuedSeptember 18, 2018
Expiration dateSeptember 30, 2023
AddressGeismar, LA 70734
Receiving waterMISS RIVER; BAYOU MANCHAC
Receiving water impaired303(D) Listed
SubwatershedClaiborne Island (HUC 080701000105)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

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 76 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
BOD, 5-day, 20 deg. C24339June 30, 2025258% over the limit
Solids, total suspended23026November 30, 2023150% over the limit
Oil and grease02116January 31, 2017249% over the limit
pH10315June 30, 2016
Oil & Grease633July 31, 2024111% over the limit
pH range excursions, > 60 minutes122December 31, 20242,147,483,650% over the limit
Benzene271February 28, 200746% over the limit
Oil and grease, hexane extr method061January 31, 200772% over the limit
Acenaphthylene251December 31, 2005100% over the limit
Flow, in conduit or thru treatment plant10280
Carbon, tot organic [TOC]4140
Toluene260
Ethylbenzene260
Carbon tetrachloride240
1,2-Dichloroethane240
Chloroform240
Acenaphthene240
Acrylonitrile240
Anthracene240
Benzo[b]fluoranthene240
Benzo[k]fluoranthene240
Benzo[a]pyrene240
Chlorobenzene240
Chrysene240
Diethyl phthalate240
Dimethyl phthalate240
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
4,6-Dinitro-o-cresol240
Phenol240
Naphthalene240
Di[2-ethylhexyl] phthalate [DEHP]240
Di-n-butyl phthalate240

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES LA0069612.

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.

Watch this permit

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How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID LA0069612 there.

Nearby on the register

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