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Nova Chemicals Olefins LLC

Industrial Organic Chemicals, major discharger, Geismar, Louisiana. NPDES permit LA0069612, in force until Jan 31, 2029. Last 12 months: no values over a limit, 5 of 33 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (12 values), outfall 002 form Q quarterly (6 values), outfall 003 form Q quarterly (6 values), outfall 004 form Q quarterly (6 values), outfall 005 form Q quarterly (6 values), outfall 001 form DA yearly, and 3 more forms
Last report on file
September 2026
Oct 2024 – Sep 2025
8 values over a limit, 0 required values missing, 0 of 33 reports late

Limits in force (158)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cmonthly average≤ 166 lb/dall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 431 lb/dall year001
pHminimumreport only (SU)all year001
pHmaximumreport only (SU)all year001
Solids, total suspendedmonthly average≤ 301 lb/dall year001
Solids, total suspendeddaily maximum≤ 846 lb/dall year001
Oil & Greasemonthly average≤ 87 lb/dall year001
Oil & Greasedaily maximum≤ 130 lb/dall year001
Carbon tetrachloridemonthly average≤ .09 lb/dall year001
Carbon tetrachloridedaily maximum≤ .19 lb/dall year001
1,2-Dichloroethanemonthly average≤ .33 lb/dall year001
1,2-Dichloroethanedaily maximum≤ 1.04 lb/dall year001
Chloroformmonthly average≤ .1 lb/dall year001
Chloroformdaily maximum≤ .23 lb/dall year001
Toluenemonthly average≤ .13 lb/dall year001
Toluenedaily maximum≤ .39 lb/dall year001
Benzenemonthly average≤ .18 lb/dall year001
Benzenedaily maximum≤ .67 lb/dall year001
Acenaphthylenemonthly average≤ .11 lb/dall year001
Acenaphthylenedaily maximum≤ .29 lb/dall year001
Acenaphthenemonthly average≤ .11 lb/dall year001
Acenaphthenedaily maximum≤ .29 lb/dall year001
Acrylonitrilemonthly average≤ .47 lb/dall year001
Acrylonitriledaily maximum≤ 1.19 lb/dall year001
Anthracenemonthly average≤ .11 lb/dall year001
Anthracenedaily maximum≤ .29 lb/dall year001
Benzo[b]fluoranthenemonthly average≤ .11 lb/dall year001
Benzo[b]fluoranthenedaily maximum≤ .3 lb/dall year001
Benzo[k]fluoranthenemonthly average≤ .11 lb/dall year001
Benzo[k]fluoranthenedaily maximum≤ .29 lb/dall year001
Benzo[a]pyrenemonthly average≤ .11 lb/dall year001
Benzo[a]pyrenedaily maximum≤ .3 lb/dall year001
Chlorobenzenemonthly average≤ .07 lb/dall year001
Chlorobenzenedaily maximum≤ .14 lb/dall year001
Chrysenemonthly average≤ .11 lb/dall year001
Chrysenedaily maximum≤ .29 lb/dall year001
Diethyl phthalatemonthly average≤ .4 lb/dall year001
Diethyl phthalatedaily maximum≤ 1 lb/dall year001
Dimethyl phthalatemonthly average≤ .09 lb/dall year001
Dimethyl phthalatedaily maximum≤ .23 lb/dall year001
Ethylbenzenemonthly average≤ .16 lb/dall year001
Ethylbenzenedaily maximum≤ .53 lb/dall year001
Fluoranthenemonthly average≤ .12 lb/dall year001
Fluoranthenedaily maximum≤ .33 lb/dall year001
Fluorenemonthly average≤ .11 lb/dall year001
Fluorenedaily maximum≤ .29 lb/dall year001
Hexachlorobutadienemonthly average≤ .1 lb/dall year001
Hexachlorobutadienedaily maximum≤ .24 lb/dall year001
Hexachloroethanemonthly average≤ .1 lb/dall year001
Hexachloroethanedaily maximum≤ .27 lb/dall year001
Methyl chloride [Chloromethane]monthly average≤ .42 lb/dall year001
Methyl chloride [Chloromethane]daily maximum≤ .93 lb/dall year001
Methylene chloridemonthly average≤ .2 lb/dall year001
Methylene chloridedaily maximum≤ .44 lb/dall year001
Nitrobenzenemonthly average≤ .13 lb/dall year001
Nitrobenzenedaily maximum≤ .33 lb/dall year001
Phenanthrenemonthly average≤ .11 lb/dall year001
Phenanthrenedaily maximum≤ .29 lb/dall year001
Pyrenemonthly average≤ .12 lb/dall year001
Pyrenedaily maximum≤ .33 lb/dall year001
Tetrachloroethylenemonthly average≤ .11 lb/dall year001
Tetrachloroethylenedaily maximum≤ .28 lb/dall year001
1,1-Dichloroethanemonthly average≤ .11 lb/dall year001
1,1-Dichloroethanedaily maximum≤ .29 lb/dall year001
1,1-Dichloroethylenemonthly average≤ .08 lb/dall year001
1,1-Dichloroethylenedaily maximum≤ .12 lb/dall year001
1,1,1-Trichloroethanemonthly average≤ .1 lb/dall year001
1,1,1-Trichloroethanedaily maximum≤ .27 lb/dall year001
1,1,2-Trichloroethanemonthly average≤ .1 lb/dall year001
1,1,2-Trichloroethanedaily maximum≤ .27 lb/dall year001
Benzo[a]anthracenemonthly average≤ .11 lb/dall year001
Benzo[a]anthracenedaily maximum≤ .29 lb/dall year001
1,2-Dichlorobenzenemonthly average≤ .38 lb/dall year001
1,2-Dichlorobenzenedaily maximum≤ .8 lb/dall year001
1,2-Dichloropropanemonthly average≤ .75 lb/dall year001
1,2-Dichloropropanedaily maximum≤ 1.13 lb/dall year001
trans-1,2-Dichloroethylenemonthly average≤ .1 lb/dall year001
trans-1,2-Dichloroethylenedaily maximum≤ .27 lb/dall year001
1,2,4-Trichlorobenzenemonthly average≤ .33 lb/dall year001
1,2,4-Trichlorobenzenedaily maximum≤ .69 lb/dall year001
1,3-Dichlorobenzenemonthly average≤ .15 lb/dall year001
1,3-Dichlorobenzenedaily maximum≤ .22 lb/dall year001
1,4-Dichlorobenzenemonthly average≤ .07 lb/dall year001
1,4-Dichlorobenzenedaily maximum≤ .14 lb/dall year001
2-Chlorophenolmonthly average≤ .15 lb/dall year001
2-Chlorophenoldaily maximum≤ .48 lb/dall year001
2-Nitrophenolmonthly average≤ .2 lb/dall year001
2-Nitrophenoldaily maximum≤ .34 lb/dall year001
2,4-Dichlorophenolmonthly average≤ .19 lb/dall year001
2,4-Dichlorophenoldaily maximum≤ .55 lb/dall year001
2,4-Dimethylphenolmonthly average≤ .09 lb/dall year001
2,4-Dimethylphenoldaily maximum≤ .18 lb/dall year001
2,4-Dinitrotoluenemonthly average≤ .56 lb/dall year001
2,4-Dinitrotoluenedaily maximum≤ 1.4 lb/dall year001
2,4-Dinitrophenolmonthly average≤ .35 lb/dall year001
2,4-Dinitrophenoldaily maximum≤ .61 lb/dall year001
2,6-Dinitrotoluenemonthly average≤ 1.25 lb/dall year001
2,6-Dinitrotoluenedaily maximum≤ 3.15 lb/dall year001
4-Nitrophenolmonthly average≤ .35 lb/dall year001
4-Nitrophenoldaily maximum≤ .61 lb/dall year001
4,6-Dinitro-o-cresolmonthly average≤ .38 lb/dall year001
4,6-Dinitro-o-cresoldaily maximum≤ 1.36 lb/dall year001
Phenolmonthly average≤ .07 lb/dall year001
Phenoldaily maximum≤ .13 lb/dall year001
Naphthalenemonthly average≤ .11 lb/dall year001
Naphthalenedaily maximum≤ .29 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]monthly average≤ .51 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ 1.37 lb/dall year001
Di-n-butyl phthalatemonthly average≤ .13 lb/dall year001
Di-n-butyl phthalatedaily maximum≤ .28 lb/dall year001
Vinyl chloridemonthly average≤ .51 lb/dall year001
Vinyl chloridedaily maximum≤ 1.32 lb/dall year001
Trichloroethylenemonthly average≤ .1 lb/dall year001
Trichloroethylenedaily maximum≤ .27 lb/dall year001
Hexachlorobenzenemonthly average≤ .07 lb/dall year001
Hexachlorobenzenedaily maximum≤ .14 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-Dichloropropylenemonthly average≤ .14 lb/dall year001
1,3-Dichloropropylenedaily maximum≤ .22 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≤ .51 lb/dall year001
Chloroethanedaily maximum≤ 1.32 lb/dall 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≤ 9 SUall 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
pHinstantaneous minimum≥ 6 SUall year003
pHinstantaneous maximum≤ 9 SUall year003
Oil & Greasedaily maximum≤ 15 mg/Lall year003
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
pHinstantaneous minimum≥ 6 SUall year004
pHinstantaneous maximum≤ 9 SUall year004
Oil & Greasedaily maximum≤ 15 mg/Lall year004
Carbon, tot organic [TOC]daily maximum≤ 50 mg/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
pHinstantaneous minimum≥ 6 SUall year005
pHinstantaneous maximum≤ 9 SUall year005
Oil & Greasedaily maximum≤ 15 mg/Lall year005
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year005
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year005
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year005

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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