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Clean Water Act discharge permit · NPDES LA0003689

EQUISTAR CHEMICALS, LP- LAKE CHARLES POLYMERS, Lake Charles, LA: NPDES LA0003689 discharge permit, effluent exceedances, inspections, penalties

EQUISTAR CHEMICALS, LP- LAKE CHARLES POLYMERS, held by Equistar Chemicals, LP- Lake Charles Polymers, holds NPDES permit LA0003689, which discharges to 0315. EPA’s file records it issued April 30, 2014 and expiring May 31, 2019. 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 filedEQUISTAR CHEMICALS, LP- LAKE CHARLES POLYMERS
Permittee as filedEquistar Chemicals, LP- Lake Charles Polymers
NPDES IDLA0003689
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
IssuedApril 30, 2014
Expiration dateMay 31, 2019
AddressLake Charles, LA 70669
Receiving water0315
Receiving water impaired303(D) Listed
SubwatershedCalcasieu River-Prien Lake (HUC 080802060303)
Other EPA IDs (FRS)RCRA handler LAD008080541; ICIS-AIR source LA0000002201900006

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 84 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Solids, total suspended21614January 31, 202669% over the limit
BOD, 5-day, 20 deg. C21311January 31, 202699,999% over the limit
pH range excursions, > 60 minutes374September 30, 20182,147,483,650% over the limit
Oxygen demand, chem. [high level] [COD]242June 30, 2012210% over the limit
Oil & Grease032December 31, 202365% over the limit
Carbon, tot organic [TOC]221December 31, 200910% over the limit
Oil and grease211December 31, 2011131% over the limit
Tetrachloroethylene211December 31, 20118% over the limit
pH640
Flow, in conduit or thru treatment plant640
pH range excursions, monthly total accum340
Coef Of Var Static Renewal 7Day Chronic Americamysis bahia (formerly Mysidopsis bahia)140
Pass/Fail Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)220
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)220
NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)220
NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia220
Coef Of Var Static Renewal 7Day Chronic Menidia menidia120
Benzo[a]pyrene110
Benzo[a]anthracene110
Copper, total [as Cu]010
Mercury, total [as Hg]010
Whole effluent toxicity - retest #1400
Whole effluent toxicity - retest #2400
WET, sublethal retest #1400
WET, sublethal retest #2400
Whole Effluent Toxicity - Retest #3400
Whole Effluent Toxicity, Sub-Lethal Retest #3400
Carbon tetrachloride200
1,2-Dichloroethane200
Chloroform200
Toluene200
Benzene200
Acenaphthylene200
Acenaphthene200
Acrylonitrile200
Anthracene200
Benzo[b]fluoranthene200
Benzo[k]fluoranthene200
Chlorobenzene200
Chrysene200
Diethyl phthalate200
Dimethyl phthalate200
Ethylbenzene200
Fluoranthene200
Fluorene200
Hexachlorobutadiene200
Hexachloroethane200
Methyl chloride [Chloromethane]200
Methylene chloride200
Nitrobenzene200
Phenanthrene200
Pyrene200
1,1-Dichloroethane200
1,1-Dichloroethylene200
1,1,1-Trichloroethane200
1,1,2-Trichloroethane200
1,2-Dichlorobenzene200
1,2-Dichloropropane200
trans-1,2-Dichloroethylene200
1,2,4-Trichlorobenzene200

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 LA0003689.

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 discharge permit NPDES LA0003689, held by Equistar Chemicals, LP- Lake Charles Polymers at Lake Charles, LA, which discharges to receiving water 0315 and is administratively continued. The page lists 81 pollutants under a numeric limit and 8 pollutants with an effluent exceedance, and classifies the facility as a Major Discharger.