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Clean Water Act discharge permit · NPDES LA0006149

FORMOSA PLASTICS CORPORATION, LOUISIANA, Baton Rouge, LA: NPDES LA0006149 discharge permit, effluent exceedances, inspections, penalties

FORMOSA PLASTICS CORPORATION, LOUISIANA, held by Formosa Plastics Corporation, Louisiana, holds NPDES permit LA0006149, which discharges to Monte Santo Bayou Diverted To Miss. EPA’s file records it issued November 2, 2017 and expiring November 30, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedFORMOSA PLASTICS CORPORATION, LOUISIANA
Permittee as filedFormosa Plastics Corporation, Louisiana
NPDES IDLA0006149
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
IssuedNovember 2, 2017
Expiration dateNovember 30, 2022
AddressBaton Rouge, LA 70821
Receiving waterMONTE SANTO BAYOU DIVERTED TO MISS
Receiving water impaired303(D) Listed
SubwatershedManchac Point (HUC 080701000104)
Other EPA IDs (FRS)RCRA handler LAD041224932; ICIS-AIR source LA0000002203300002

Cited to the EPA ICIS-NPDES permit file (ECHO 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 80 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Coliform, fecal general455March 31, 202699,999% over the limit
Solids, total suspended832May 31, 201299% over the limit
Carbon, tot organic [TOC]832April 30, 2025146% over the limit
Oil and grease032November 30, 2006913% over the limit
pH1022December 31, 2013
BOD, 5-day, 20 deg. C822April 30, 202599,999% over the limit
1,2-Dichloroethane822June 30, 202624% over the limit
Zinc, total [as Zn]411December 31, 200916% over the limit
Flow, in conduit or thru treatment plant1620
Benzene1010
Lead, total [as Pb]210
BTEX210
Whole effluent toxicity - retest #1800
Whole effluent toxicity - retest #2800
Carbon tetrachloride800
Chloroform800
Toluene800
Acenaphthylene800
Acenaphthene800
Acrylonitrile800
Anthracene800
Benzo[b]fluoranthene800
Benzo[k]fluoranthene800
Benzo[a]pyrene800
Chlorobenzene800
Chrysene800
Diethyl phthalate800
Dimethyl phthalate800
Ethylbenzene800
Fluoranthene800
Fluorene800
Hexachlorobutadiene800
Hexachloroethane800
Methyl chloride [Chloromethane]800
Methylene chloride800
Nitrobenzene800
Phenanthrene800
Pyrene800
Tetrachloroethylene800
1,1-Dichloroethane800
1,1-Dichloroethylene800
1,1,1-Trichloroethane800
1,1,2-Trichloroethane800
Benzo[a]anthracene800
1,2-Dichlorobenzene800
1,2-Dichloropropane800
trans-1,2-Dichloroethylene800
1,2,4-Trichlorobenzene800
1,3-Dichlorobenzene800
1,4-Dichlorobenzene800
2-Chlorophenol800
2-Nitrophenol800
2,4-Dichlorophenol800
2,4-Dimethylphenol800
2,4-Dinitrotoluene800
2,4-Dinitrophenol800
2,6-Dinitrotoluene800
4-Nitrophenol800
4,6-Dinitro-o-cresol800
Phenol800

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 LA0006149.

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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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 LA0006149 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES LA0006149, held by Formosa Plastics Corporation, Louisiana, in Baton Rouge, LA, which discharges to Monte Santo Bayou Diverted To Miss and is listed in the Manchac Point subwatershed (HUC 080701000104). The permit is administratively continued and is classed as a Major Discharger, with 79 pollutants under a numeric limit and 8 pollutants with an effluent exceedance.