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Clean Water Act discharge permit · NPDES LA0125041

BIO-LAB, INC., A CHEMTURA COMPANY, Westlake, LA: NPDES LA0125041 discharge permit, effluent exceedances, inspections, penalties

BIO-LAB, INC., A CHEMTURA COMPANY, held by Bio-Lab, Inc., a Chemtura Company, holds NPDES permit LA0125041. EPA’s file records it issued September 1, 2017 and expiring October 31, 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 filedBIO-LAB, INC., A CHEMTURA COMPANY
Permittee as filedBio-Lab, Inc., a Chemtura Company
NPDES IDLA0125041
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 1, 2017
Expiration dateOctober 31, 2022
AddressWestlake, LA 70669
Receiving water impaired303(D) Listed
SubwatershedBayou Verdine-Calcasieu River (HUC 080802060302)

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 91 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Nitrogen, organic total [as N]63232July 31, 2026392% over the limit
Nitrogen, nitrate total [as N]61414April 30, 2024217% over the limit
Coliform, fecal general677June 30, 202599,999% over the limit
BOD, 5-day, 20 deg. C466January 31, 2024255% over the limit
Nitrogen, ammonia total [as N]622September 30, 201916% over the limit
Carbon, tot organic [TOC]1011June 30, 20225% over the limit
Carbon tetrachloride6160
1,2-Dichloroethane6160
Chlorobenzene6160
Hexachlorobutadiene6160
1,1,1-Trichloroethane6160
1,2-Dichloropropane6160
2,4-Dimethylphenol6160
Vinyl chloride6160
Hexachlorobenzene6160
Methylene chloride4160
Chloroform6140
Benzo[a]pyrene6140
Benzo[a]anthracene6140
1,3-Dichloropropylene6100
Oil & Grease1280
Phosphorus, total [as P]480
Whole Effluent Toxicity, Sub-Lethal Retest #3860
Copper, total [as Cu]660
Oil and grease260
Benzene940
Whole effluent toxicity - retest #1840
Whole effluent toxicity - retest #2840
WET, sublethal retest #1840
WET, sublethal retest #2840
Whole Effluent Toxicity - Retest #3840
Toluene640
Acenaphthylene640
Acenaphthene640
Acrylonitrile640
Anthracene640
Benzo[k]fluoranthene640
Chrysene640
Diethyl phthalate640
Dimethyl phthalate640
Ethylbenzene640
Fluoranthene640
Fluorene640
Hexachloroethane640
Methyl chloride [Chloromethane]640
Nitrobenzene640
Phenanthrene640
Pyrene640
Tetrachloroethylene640
1,1-Dichloroethane640
1,1-Dichloroethylene640
1,1,2-Trichloroethane640
1,2-Dichlorobenzene640
trans-1,2-Dichloroethylene640
1,2,4-Trichlorobenzene640
1,3-Dichlorobenzene640
1,4-Dichlorobenzene640
2-Nitrophenol640
2,4-Dinitrophenol640
4-Nitrophenol640

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
August 27, 2020Permit 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 September 15, 2026.

What this page shows

This public-records page covers Clean Water Act NPDES permit LA0125041, held by BIO-LAB, INC., A CHEMTURA COMPANY in Westlake, LA, with the permit status shown as administratively continued. The page lists 91 pollutants on file, 88 of them under a numeric limit, and 82 with a violation of any kind.