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1,4-Dichloro-2-butene

CAS # 764-41-0

62,591 lbs total reported releases across all facilities and years.

Facilities listed below reported releases of this chemical to the EPA Toxic Release Inventory (TRI). Quantities are self-reported annual totals in pounds, broken out by release pathway. Click any facility name for its full compliance profile.

National Release Trend (2015–2024) +61% overall
Year Total Released (lbs) Reporting Facilities vs Prior Year
2015 5,168 5
2016 2,767 4 -46%
2017 8,514 4 +208%
2018 9,479 4 +11%
2019 5,331 1 -44%
2020 5,155 4 -3%
2021 5,713 4 +11%
2022 6,282 4 +10%
2023 5,864 4 -7%
2024 8,317 4 +42%
Top Releasing Industries
Industry Sector Total Released (lbs) Facilities
Manufacturing 62,591 4
Administrative and Support and Waste Management 0 1
Facility Location Year Total (lbs) Air Water
WESTLAKE CHEMICALS & VINYLS LLC - PLAQUEMINE FACILITY PLAQUEMINE, LA 2024
DENKA PERFORMANCE ELASTOMER LLC LAPLACE, LA 2024 8,316 2,103 4
WESTLAKE CHEMICALS & VINYLS LLC WESTLAKE, LA 2024 1 1
HERITAGE THERMAL SERVICES EAST LIVERPOOL, OH 2024 0 0
WESTLAKE CHEMICALS & VINYLS LLC - PLAQUEMINE FACILITY PLAQUEMINE, LA 2023
DENKA PERFORMANCE ELASTOMER LLC LAPLACE, LA 2023 5,863 2,383 1
WESTLAKE CHEMICALS & VINYLS LLC WESTLAKE, LA 2023 1 1
HERITAGE THERMAL SERVICES EAST LIVERPOOL, OH 2023 0 0
WESTLAKE CHEMICALS & VINYLS LLC - PLAQUEMINE FACILITY PLAQUEMINE, LA 2022
DENKA PERFORMANCE ELASTOMER LLC LAPLACE, LA 2022 6,281 2,270 102
WESTLAKE CHEMICALS & VINYLS LLC WESTLAKE, LA 2022 1 1
HERITAGE THERMAL SERVICES EAST LIVERPOOL, OH 2022 0 0
WESTLAKE CHEMICALS & VINYLS LLC - PLAQUEMINE FACILITY PLAQUEMINE, LA 2021
DENKA PERFORMANCE ELASTOMER LLC LAPLACE, LA 2021 5,712 2,444 98
WESTLAKE CHEMICALS & VINYLS LLC WESTLAKE, LA 2021 1 1
HERITAGE THERMAL SERVICES EAST LIVERPOOL, OH 2021 0 0
WESTLAKE CHEMICALS & VINYLS LLC - PLAQUEMINE FACILITY PLAQUEMINE, LA 2020
DENKA PERFORMANCE ELASTOMER LLC LAPLACE, LA 2020 5,154 2,321 96
WESTLAKE CHEMICALS & VINYLS LLC WESTLAKE, LA 2020 1 1
HERITAGE THERMAL SERVICES EAST LIVERPOOL, OH 2020 0 0
DENKA PERFORMANCE ELASTOMER LLC LAPLACE, LA 2019 5,331 2,037 51
WESTLAKE CHEMICALS & VINYLS LLC - PLAQUEMINE FACILITY PLAQUEMINE, LA 2018
DENKA PERFORMANCE ELASTOMER LLC LAPLACE, LA 2018 9,478 1,925 53
WESTLAKE CHEMICALS & VINYLS LLC WESTLAKE, LA 2018 1 1
HERITAGE THERMAL SERVICES EAST LIVERPOOL, OH 2018 0 0
WESTLAKE CHEMICALS & VINYLS LLC - PLAQUEMINE FACILITY PLAQUEMINE, LA 2017
DENKA PERFORMANCE ELASTOMER LLC LAPLACE, LA 2017 8,513 2,990 23
WESTLAKE CHEMICALS & VINYLS LLC WESTLAKE, LA 2017 1 1
HERITAGE THERMAL SERVICES EAST LIVERPOOL, OH 2017 0 0
WESTLAKE CHEMICALS & VINYLS LLC - PLAQUEMINE FACILITY PLAQUEMINE, LA 2016
DENKA PERFORMANCE ELASTOMER LLC LAPLACE, LA 2016 2,765 2,649 22
WESTLAKE CHEMICALS & VINYLS LLC WESTLAKE, LA 2016 2 2
HERITAGE THERMAL SERVICES EAST LIVERPOOL, OH 2016 0 0
WESTLAKE CHEMICALS & VINYLS LLC - PLAQUEMINE FACILITY PLAQUEMINE, LA 2015
DUPONT PONTCHARTRAIN SITE LA PLACE, LA 2015 4,973 654 19
DENKA PERFORMANCE ELASTOMER LLC LAPLACE, LA 2015 194 181 3
WESTLAKE CHEMICALS & VINYLS LLC WESTLAKE, LA 2015 1 1
HERITAGE THERMAL SERVICES EAST LIVERPOOL, OH 2015 0 0 0