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TotalEnergies Petrochemicals & Refining USA Inc.- CosMar Styrene Monomer Plant

Cyclic Crudes And Intermediates, major discharger, Carville, Louisiana. NPDES permit LA0003751, in force until Mar 31, 2031. Last 12 months: no values over a limit, 5 required values missing, 3 of 94 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (2 values), outfall 002 form A monthly (10 values), outfall 101 form A monthly (2 values), outfall 201 form A monthly (20 values), outfall 401 form A monthly (6 values), outfall CT01 form A monthly (1 value), and 6 more forms
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 103 reports late

Limits in force (163)

ParameterStatisticLimitMonthsOutfall
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulexmonthly average minimumreport only (pass=0;fail=1)all year001
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex48-hour minimumreport only (pass=0;fail=1)all year001
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelasmonthly average minimumreport only (pass=0;fail=1)all year001
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas48-hour minimumreport only (pass=0;fail=1)all year001
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulexmonthly average minimumreport only (%)all year001
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex48-hour minimumreport only (%)all year001
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelasmonthly average minimumreport only (%)all year001
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas48-hour minimumreport only (%)all year001
Coef Of Var Static Renewal 48Hr Acute D. pulexmaximumreport only (%)all year001
Coef Of Var Static Renewal 48Hr Acute Pimephales promelasmaximumreport only (%)all year001
pHinstantaneous minimum≥ 6 SUall year002
pHinstantaneous maximum≤ 10 SUall year002
Oil & Greasedaily maximum≤ 15 mg/Lall year002
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year002
Zinc, total [as Zn]daily maximumreport only (mg/L)all year002
Toluenedaily maximum≤ 195 ug/Lall year002
Benzenedaily maximum≤ 353 ug/Lall year002
Ethylbenzenedaily maximum≤ 1000 ug/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
pHinstantaneous minimum≥ 6 SUall year004
pHinstantaneous maximum≤ 9 SUall year004
Solids, total suspendeddaily maximumreport only (mg/L)all year004
Solids, total suspendeddaily maximumreport only (mg/L)all year004
Solids, total suspendeddaily maximum≤ 90 mg/Lall year004
Oil & Greasedaily maximum≤ 15 mg/Lall year004
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year004
Lead, total [as Pb]daily maximum≤ 50 ug/Lall year004
Benzenedaily maximum≤ 50 ug/Lall year004
BTEXdaily maximum≤ 250 ug/Lall year004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year101
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year101
BOD, 5-day, 20 deg. Cmonthly average≤ 178 lb/dall year201
BOD, 5-day, 20 deg. Cdaily maximum≤ 469 lb/dall year201
pHminimumreport only (SU)all year201
pHmaximumreport only (SU)all year201
Solids, total suspendedmonthly average≤ 419 lb/dall year201
Solids, total suspendeddaily maximum≤ 1351 lb/dall year201
Chromium, total [as Cr]monthly average≤ 4.17 lb/dall year201
Chromium, total [as Cr]daily maximum≤ 10.41 lb/dall year201
Zinc, total [as Zn]monthly average≤ 1.95 lb/dall year201
Zinc, total [as Zn]daily maximum≤ 4.06 lb/dall year201
Carbon tetrachloridemonthly average≤ .61 lb/dall year201
Carbon tetrachloridedaily maximum≤ 1.63 lb/dall year201
1,2-Dichloroethanemonthly average≤ .77 lb/dall year201
1,2-Dichloroethanedaily maximum≤ 2.47 lb/dall year201
Chloroformmonthly average≤ .48 lb/dall year201
Chloroformdaily maximum≤ 1.4 lb/dall year201
Toluenemonthly average≤ .12 lb/dall year201
Toluenedaily maximum≤ .32 lb/dall year201
Benzenemonthly average≤ .25 lb/dall year201
Benzenedaily maximum≤ .58 lb/dall year201
Acenaphthylenemonthly average≤ .08 lb/dall year201
Acenaphthylenedaily maximum≤ .2 lb/dall year201
Acenaphthenemonthly average≤ .08 lb/dall year201
Acenaphthenedaily maximum≤ .2 lb/dall year201
Acrylonitrilemonthly average≤ .4 lb/dall year201
Acrylonitriledaily maximum≤ 1 lb/dall year201
Anthracenemonthly average≤ .08 lb/dall year201
Anthracenedaily maximum≤ .2 lb/dall year201
Benzo[b]fluoranthenemonthly average≤ .09 lb/dall year201
Benzo[b]fluoranthenedaily maximum≤ .21 lb/dall year201
Benzo[k]fluoranthenemonthly average≤ .08 lb/dall year201
Benzo[k]fluoranthenedaily maximum≤ .2 lb/dall year201
Benzo[a]pyrenemonthly average≤ .09 lb/dall year201
Benzo[a]pyrenedaily maximum≤ .21 lb/dall year201
Chlorobenzenemonthly average≤ .61 lb/dall year201
Chlorobenzenedaily maximum≤ 1.63 lb/dall year201
Chrysenemonthly average≤ .08 lb/dall year201
Chrysenedaily maximum≤ .2 lb/dall year201
Diethyl phthalatemonthly average≤ .2 lb/dall year201
Diethyl phthalatedaily maximum≤ .49 lb/dall year201
Dimethyl phthalatemonthly average≤ .08 lb/dall year201
Dimethyl phthalatedaily maximum≤ .2 lb/dall year201
Ethylbenzenemonthly average≤ .61 lb/dall year201
Ethylbenzenedaily maximum≤ 1.63 lb/dall year201
Fluoranthenemonthly average≤ .09 lb/dall year201
Fluoranthenedaily maximum≤ .23 lb/dall year201
Fluorenemonthly average≤ .08 lb/dall year201
Fluorenedaily maximum≤ .2 lb/dall year201
Hexachlorobutadienemonthly average≤ .61 lb/dall year201
Hexachlorobutadienedaily maximum≤ 1.63 lb/dall year201
Hexachloroethanemonthly average≤ .84 lb/dall year201
Hexachloroethanedaily maximum≤ 3.41 lb/dall year201
Methyl chloride [Chloromethane]monthly average≤ .47 lb/dall year201
Methyl chloride [Chloromethane]daily maximum≤ 1.27 lb/dall year201
Methylene chloridemonthly average≤ .15 lb/dall year201
Methylene chloridedaily maximum≤ .73 lb/dall year201
Nitrobenzenemonthly average≤ 9.62 lb/dall year201
Nitrobenzenedaily maximum≤ 27.52 lb/dall year201
Phenanthrenemonthly average≤ .08 lb/dall year201
Phenanthrenedaily maximum≤ .2 lb/dall year201
Pyrenemonthly average≤ .09 lb/dall year201
Pyrenedaily maximum≤ .21 lb/dall year201
Tetrachloroethylenemonthly average≤ .22 lb/dall year201
Tetrachloroethylenedaily maximum≤ .71 lb/dall year201
1,1-Dichloroethanemonthly average≤ .09 lb/dall year201
1,1-Dichloroethanedaily maximum≤ .25 lb/dall year201
1,1-Dichloroethylenemonthly average≤ .09 lb/dall year201
1,1-Dichloroethylenedaily maximum≤ .26 lb/dall year201
1,1,1-Trichloroethanemonthly average≤ .09 lb/dall year201
1,1,1-Trichloroethanedaily maximum≤ .25 lb/dall year201
1,1,2-Trichloroethanemonthly average≤ .14 lb/dall year201
1,1,2-Trichloroethanedaily maximum≤ .55 lb/dall year201
Benzo[a]anthracenemonthly average≤ .08 lb/dall year201
Benzo[a]anthracenedaily maximum≤ .2 lb/dall year201
1,2-Dichlorobenzenemonthly average≤ .84 lb/dall year201
1,2-Dichlorobenzenedaily maximum≤ 3.41 lb/dall year201
1,2-Dichloropropanemonthly average≤ .84 lb/dall year201
1,2-Dichloropropanedaily maximum≤ 3.41 lb/dall year201
trans-1,2-Dichloroethylenemonthly average≤ .11 lb/dall year201
trans-1,2-Dichloroethylenedaily maximum≤ .28 lb/dall year201
1,2,4-Trichlorobenzenemonthly average≤ .84 lb/dall year201
1,2,4-Trichlorobenzenedaily maximum≤ 3.41 lb/dall year201
1,3-Dichlorobenzenemonthly average≤ .61 lb/dall year201
1,3-Dichlorobenzenedaily maximum≤ 1.63 lb/dall year201
1,4-Dichlorobenzenemonthly average≤ .61 lb/dall year201
1,4-Dichlorobenzenedaily maximum≤ 1.63 lb/dall year201
2-Nitrophenolmonthly average≤ .28 lb/dall year201
2-Nitrophenoldaily maximum≤ .99 lb/dall year201
2,4-Dimethylphenolmonthly average≤ .08 lb/dall year201
2,4-Dimethylphenoldaily maximum≤ .2 lb/dall year201
2,4-Dinitrophenolmonthly average≤ 5.19 lb/dall year201
2,4-Dinitrophenoldaily maximum≤ 18.45 lb/dall year201
4-Nitrophenolmonthly average≤ .7 lb/dall year201
4-Nitrophenoldaily maximum≤ 2.48 lb/dall year201
4,6-Dinitro-o-cresolmonthly average≤ .34 lb/dall year201
4,6-Dinitro-o-cresoldaily maximum≤ 1.19 lb/dall year201
Phenolmonthly average≤ .08 lb/dall year201
Phenoldaily maximum≤ .2 lb/dall year201
Naphthalenemonthly average≤ .08 lb/dall year201
Naphthalenedaily maximum≤ .2 lb/dall year201
Di[2-ethylhexyl] phthalate [DEHP]monthly average≤ .41 lb/dall year201
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ 1.11 lb/dall year201
Di-n-butyl phthalatemonthly average≤ .09 lb/dall year201
Di-n-butyl phthalatedaily maximum≤ .18 lb/dall year201
Vinyl chloridemonthly average≤ .42 lb/dall year201
Vinyl chloridedaily maximum≤ .74 lb/dall year201
Trichloroethylenemonthly average≤ .11 lb/dall year201
Trichloroethylenedaily maximum≤ .3 lb/dall year201
Hexachlorobenzenemonthly average≤ .38 lb/dall year201
Hexachlorobenzenedaily maximum≤ .91 lb/dall year201
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year201
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year201
1,3-Dichloropropylenemonthly average≤ .84 lb/dall year201
1,3-Dichloropropylenedaily maximum≤ 3.41 lb/dall year201
pH range excursions, > 60 minutesmonthly total≤ 0 occur/moall year201
pH range excursions, monthly total accummonthly total≤ 446 minall year201
Chloroethanemonthly average≤ .47 lb/dall year201
Chloroethanedaily maximum≤ 1.27 lb/dall year201
Zinc, total [as Zn]monthly average≤ 1.05 mg/Lall year401
Zinc, total [as Zn]daily maximum≤ 2.61 mg/Lall year401
Phenolmonthly averagereport only (mg/L)all year401
Phenoldaily maximumreport only (mg/L)all year401
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year401
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year401
Cycles Of Concentrationmonthly average minimum≥ 3 call yearCT01
Cycles Of Concentrationmonthly average minimum≥ 3 call yearCT02
Cycles Of Concentrationmonthly average minimum≥ 3 call yearCT03

How strict are these limits?

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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