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Equistar Chemicals, LP- Lake Charles Polymers

Plastics Materials And Resins, major discharger, Lake Charles, Louisiana. NPDES permit LA0003689 expired Aug 31, 2024; its limits still apply. Last 12 months: over a limit 3 times (last January 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (12 values), outfall 002 form A monthly (8 values), outfall 001 form ME quarterly, outfall 001 form MY quarterly, outfall 001 form Y yearly
Last report on file
September 2026
Oct 2024 – Sep 2025
4 values over a limit, 0 required values missing, 0 of 33 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
January 2026BOD, 5-day, 20 deg. C, monthly average136 lb/d≤ 133 lb/d2%
January 2026Solids, total suspended, daily maximum663 lb/d≤ 660 lb/d0%
January 2026Solids, total suspended, monthly average252 lb/d≤ 223 lb/d13%

Limits in force (148)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cmonthly average≤ 133 lb/dall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 331 lb/dall year001
Oxygen demand, chem. [high level] [COD]monthly average≤ 398 lb/dall year001
Oxygen demand, chem. [high level] [COD]daily maximum≤ 994 lb/dall year001
pHminimumreport only (SU)all year001
pHmaximumreport only (SU)all year001
Solids, total suspendedmonthly average≤ 223 lb/dall year001
Solids, total suspendeddaily maximum≤ 660 lb/dall year001
Carbon tetrachloridemonthly average≤ .08 lb/dall year001
Carbon tetrachloridedaily maximum≤ .17 lb/dall year001
1,2-Dichloroethanemonthly average≤ .3 lb/dall year001
1,2-Dichloroethanedaily maximum≤ .92 lb/dall year001
Chloroformmonthly average≤ .09 lb/dall year001
Chloroformdaily maximum≤ .2 lb/dall year001
Toluenemonthly average≤ .11 lb/dall year001
Toluenedaily maximum≤ .35 lb/dall year001
Benzenemonthly average≤ .16 lb/dall year001
Benzenedaily maximum≤ .59 lb/dall year001
Acenaphthylenemonthly average≤ .1 lb/dall year001
Acenaphthylenedaily maximum≤ .26 lb/dall year001
Acenaphthenemonthly average≤ .1 lb/dall year001
Acenaphthenedaily maximum≤ .26 lb/dall year001
Acrylonitrilemonthly average≤ .42 lb/dall year001
Acrylonitriledaily maximum≤ 1.05 lb/dall year001
Anthracenemonthly average≤ .1 lb/dall year001
Anthracenedaily maximum≤ .26 lb/dall year001
Benzo[b]fluoranthenemonthly average≤ .1 lb/dall year001
Benzo[b]fluoranthenedaily maximum≤ .27 lb/dall year001
Benzo[k]fluoranthenemonthly average≤ .1 lb/dall year001
Benzo[k]fluoranthenedaily maximum≤ .26 lb/dall year001
Benzo[a]pyrenemonthly average≤ .0875 lb/dall year001
Chlorobenzenemonthly average≤ .07 lb/dall year001
Chlorobenzenedaily maximum≤ .12 lb/dall year001
Chrysenemonthly average≤ .1 lb/dall year001
Chrysenedaily maximum≤ .26 lb/dall year001
Diethyl phthalatemonthly average≤ .35 lb/dall year001
Diethyl phthalatedaily maximum≤ .88 lb/dall year001
Dimethyl phthalatemonthly average≤ .08 lb/dall year001
Dimethyl phthalatedaily maximum≤ .2 lb/dall year001
Ethylbenzenemonthly average≤ .14 lb/dall year001
Ethylbenzenedaily maximum≤ .47 lb/dall year001
Fluoranthenemonthly average≤ .11 lb/dall year001
Fluoranthenedaily maximum≤ .3 lb/dall year001
Fluorenemonthly average≤ .1 lb/dall year001
Fluorenedaily maximum≤ .26 lb/dall year001
Hexachlorobutadienemonthly average≤ .09 lb/dall year001
Hexachlorobutadienedaily maximum≤ .21 lb/dall year001
Hexachloroethanemonthly average≤ .09 lb/dall year001
Hexachloroethanedaily maximum≤ .24 lb/dall year001
Methyl chloride [Chloromethane]monthly average≤ .37 lb/dall year001
Methyl chloride [Chloromethane]daily maximum≤ .83 lb/dall year001
Methylene chloridemonthly average≤ .17 lb/dall year001
Methylene chloridedaily maximum≤ .39 lb/dall year001
Nitrobenzenemonthly average≤ .12 lb/dall year001
Nitrobenzenedaily maximum≤ .3 lb/dall year001
Phenanthrenemonthly average≤ .1 lb/dall year001
Phenanthrenedaily maximum≤ .26 lb/dall year001
Pyrenemonthly average≤ .11 lb/dall year001
Pyrenedaily maximum≤ .29 lb/dall year001
Tetrachloroethylenemonthly average≤ .1 lb/dall year001
Tetrachloroethylenedaily maximum≤ .24 lb/dall year001
1,1-Dichloroethanemonthly average≤ .1 lb/dall year001
1,1-Dichloroethanedaily maximum≤ .26 lb/dall year001
1,1-Dichloroethylenemonthly average≤ .07 lb/dall year001
1,1-Dichloroethylenedaily maximum≤ .11 lb/dall year001
1,1,1-Trichloroethanemonthly average≤ .09 lb/dall year001
1,1,1-Trichloroethanedaily maximum≤ .24 lb/dall year001
1,1,2-Trichloroethanemonthly average≤ .09 lb/dall year001
1,1,2-Trichloroethanedaily maximum≤ .24 lb/dall year001
Benzo[a]anthracenemonthly average≤ .0875 lb/dall year001
1,2-Dichlorobenzenemonthly average≤ .34 lb/dall year001
1,2-Dichlorobenzenedaily maximum≤ .71 lb/dall year001
1,2-Dichloropropanemonthly average≤ .67 lb/dall year001
1,2-Dichloropropanedaily maximum≤ 1 lb/dall year001
trans-1,2-Dichloroethylenemonthly average≤ .09 lb/dall year001
trans-1,2-Dichloroethylenedaily maximum≤ .24 lb/dall year001
1,2,4-Trichlorobenzenemonthly average≤ .3 lb/dall year001
1,2,4-Trichlorobenzenedaily maximum≤ .61 lb/dall year001
1,3-Dichlorobenzenemonthly average≤ .13 lb/dall year001
1,3-Dichlorobenzenedaily maximum≤ .19 lb/dall year001
1,4-Dichlorobenzenemonthly average≤ .07 lb/dall year001
1,4-Dichlorobenzenedaily maximum≤ .12 lb/dall year001
2-Chlorophenolmonthly average≤ .13 lb/dall year001
2-Chlorophenoldaily maximum≤ .43 lb/dall year001
2-Nitrophenolmonthly average≤ .18 lb/dall year001
2-Nitrophenoldaily maximum≤ .3 lb/dall year001
2,4-Dichlorophenolmonthly average≤ .17 lb/dall year001
2,4-Dichlorophenoldaily maximum≤ .49 lb/dall year001
2,4-Dimethylphenolmonthly average≤ .08 lb/dall year001
2,4-Dimethylphenoldaily maximum≤ .16 lb/dall year001
2,4-Dinitrotoluenemonthly average≤ .49 lb/dall year001
2,4-Dinitrotoluenedaily maximum≤ 1.24 lb/dall year001
2,4-Dinitrophenolmonthly average≤ .31 lb/dall year001
2,4-Dinitrophenoldaily maximum≤ .54 lb/dall year001
2,6-Dinitrotoluenemonthly average≤ 1.11 lb/dall year001
2,6-Dinitrotoluenedaily maximum≤ 2.79 lb/dall year001
4-Nitrophenolmonthly average≤ .31 lb/dall year001
4-Nitrophenoldaily maximum≤ .54 lb/dall year001
4,6-Dinitro-o-cresolmonthly average≤ .34 lb/dall year001
4,6-Dinitro-o-cresoldaily maximum≤ 1.21 lb/dall year001
Phenolmonthly average≤ .07 lb/dall year001
Phenoldaily maximum≤ .11 lb/dall year001
Naphthalenemonthly average≤ .1 lb/dall year001
Naphthalenedaily maximum≤ .26 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]monthly average≤ .45 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ 1.21 lb/dall year001
Di-n-butyl phthalatemonthly average≤ .12 lb/dall year001
Di-n-butyl phthalatedaily maximum≤ .25 lb/dall year001
Vinyl chloridemonthly average≤ .45 lb/dall year001
Vinyl chloridedaily maximum≤ 1.17 lb/dall year001
Trichloroethylenemonthly average≤ .09 lb/dall year001
Trichloroethylenedaily maximum≤ .24 lb/dall year001
Hexachlorobenzenemonthly average≤ .0098 lb/dall year001
Hexachlorobenzenedaily maximum≤ .0233 lb/dall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
1,3-Dichloropropenemonthly average≤ .13 lb/dall year001
1,3-Dichloropropenedaily maximum≤ .19 lb/dall year001
pH range excursions, > 60 minutesmonthly total≤ 0 occur/moall year001
pH range excursions, monthly total accummonthly total≤ 446 minall year001
Chloroethanemonthly average≤ .45 lb/dall year001
Chloroethanedaily maximum≤ 1.17 lb/dall year001
Pass/Fail Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)monthly average minimumreport only (pass=0;fail=1)all year001
Pass/Fail Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7-day minimumreport only (pass=0;fail=1)all year001
Pass/Fail Static Renewal 7Day Chronic Menidiamonthly average minimumreport only (pass=0;fail=1)all year001
Pass/Fail Static Renewal 7Day Chronic Menidia7-day minimumreport only (pass=0;fail=1)all year001
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)monthly average minimumreport only (pass=0;fail=1)all year001
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7-day minimumreport only (pass=0;fail=1)all year001
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidiamonthly average minimumreport only (pass=0;fail=1)all year001
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia7-day minimumreport only (pass=0;fail=1)all year001
NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)monthly average minimumreport only (%)all year001
NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7-day minimumreport only (%)all year001
NOEC Lethal Static Renewal 7 Day Chronic Menidia menidiamonthly average minimumreport only (%)all year001
NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia7-day minimumreport only (%)all year001
NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)monthly average minimumreport only (%)all year001
NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7-day minimumreport only (%)all year001
NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidiamonthly average minimumreport only (%)all year001
NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia7-day minimumreport only (%)all year001
Coef Of Var Static Renewal 7Day Chronic Americamysis bahia (formerly Mysidopsis bahia)maximumreport only (%)all year001
Coef Of Var Static Renewal 7Day Chronic Menidia menidiamaximumreport only (%)all year001
pHminimumreport only (SU)all year002
pHmaximumreport only (SU)all year002
Oil & Greasedaily maximum≤ 15 mg/Lall year002
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
pH range excursions, > 60 minutesmonthly total≤ 0 occur/moall year002
pH range excursions, monthly total accummonthly total≤ 446 minall year002

Cited limits by parameter: Louisiana's rules and the federal ones.

Same industry: the 130 Chemicals and Allied Products permits in Louisiana.

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