Hexachloro-1,3-butadiene

CAS # 87-68-3

20,619 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) -9% overall

Year	Total Released (lbs)	Reporting Facilities	vs Prior Year
2015	2,321	14	—
2016	2,397	12	+3%
2017	2,404	12	0%
2018	2,192	12	-9%
2019	179	5	-92%
2020	2,233	12	+1146%
2021	2,203	14	-1%
2022	2,188	14	-1%
2023	2,385	13	+9%
2024	2,117	13	-11%

Top Releasing Industries

Industry Sector	Total Released (lbs)	Facilities
Manufacturing	20,542	13
Administrative and Support and Waste Management	77	6

Facility	Location	Year	Total (lbs)	Air	Water
HEIDELBERG MATERIALS CEMENT COMPANY LLC	LOGANSPORT, IN	2024	—	—	—
WESTLAKE CHEMICALS & VINYLS LLC - PLAQUEMINE FACILITY	PLAQUEMINE, LA	2024	—	—	—
OCCIDENTAL CHEMICAL CORPORATION - GEISMAR FACILITY	GEISMAR, LA	2024	1,970	1,942	25
WESTLAKE US 2 LLC	WESTLAKE, LA	2024	73	73	—
BLUE CUBE OPERATIONS LLC	PLAQUEMINE, LA	2024	48	48	—
WESTLAKE VINYLS, INC.	CALVERT CITY, KY	2024	18	18	—
VEOLIA ES TECHNICAL SOLUTIONS	BEAUMONT, TX	2024	6	6	—
CLEAN HARBORS ENVIRONMENTAL SERVICES INC	KIMBALL, NE	2024	2	2	—
OCCIDENTAL CHEMICAL OXYCHEM- PORTLAND PLANT	GREGORY, TX	2024	0	0	—
HERITAGE THERMAL SERVICES	EAST LIVERPOOL, OH	2024	0	0	—
OLIN BLUE CUBE	FREEPORT, TX	2024	0	0	—
CLEAN HARBORS DEER PARK LLC	LA PORTE, TX	2024	0	0	—
CLEAN HARBORS ARAGONITE LLC	GRANTSVILLE, UT	2024	0	0	—
OLIN BLUE CUBE	FREEPORT, TX	2023	—	—	—
WESTLAKE CHEMICALS & VINYLS LLC - PLAQUEMINE FACILITY	PLAQUEMINE, LA	2023	—	—	—
HEIDELBERG MATERIALS CEMENT COMPANY LLC	LOGANSPORT, IN	2023	—	—	—
OCCIDENTAL CHEMICAL CORPORATION - GEISMAR FACILITY	GEISMAR, LA	2023	1,974	1,950	24
OCCIDENTAL CHEMICAL CORPORATION - WICHITA PLANT	WICHITA, KS	2023	217	—	—
WESTLAKE US 2 LLC	WESTLAKE, LA	2023	113	113	—
BLUE CUBE OPERATIONS LLC	PLAQUEMINE, LA	2023	55	55	—
WESTLAKE VINYLS, INC.	CALVERT CITY, KY	2023	18	18	—
VEOLIA ES TECHNICAL SOLUTIONS	BEAUMONT, TX	2023	5	5	—
CLEAN HARBORS ENVIRONMENTAL SERVICES INC	KIMBALL, NE	2023	2	2	—
OCCIDENTAL CHEMICAL OXYCHEM- PORTLAND PLANT	GREGORY, TX	2023	1	1	—
CLEAN HARBORS DEER PARK LLC	LA PORTE, TX	2023	0	0	—
HERITAGE THERMAL SERVICES	EAST LIVERPOOL, OH	2023	0	0	—
HEIDELBERG MATERIALS CEMENT COMPANY LLC	LOGANSPORT, IN	2022	—	—	—
WESTLAKE CHEMICALS & VINYLS LLC - PLAQUEMINE FACILITY	PLAQUEMINE, LA	2022	—	—	—
OLIN BLUE CUBE	FREEPORT, TX	2022	—	—	—
OCCIDENTAL CHEMICAL CORPORATION - GEISMAR FACILITY	GEISMAR, LA	2022	1,997	1,970	27
WESTLAKE US 2 LLC	WESTLAKE, LA	2022	106	106	—
BLUE CUBE OPERATIONS LLC	PLAQUEMINE, LA	2022	65	65	—
WESTLAKE VINYLS, INC.	CALVERT CITY, KY	2022	15	15	—
VEOLIA ES TECHNICAL SOLUTIONS	BEAUMONT, TX	2022	2	2	—
CLEAN HARBORS ENVIRONMENTAL SERVICES INC	KIMBALL, NE	2022	1	1	—
OCCIDENTAL CHEMICAL OXYCHEM- PORTLAND PLANT	GREGORY, TX	2022	1	1	—
CLEAN HARBORS DEER PARK LLC	LA PORTE, TX	2022	0	0	—
HERITAGE THERMAL SERVICES	EAST LIVERPOOL, OH	2022	0	0	—
CLEAN HARBORS ARAGONITE LLC	GRANTSVILLE, UT	2022	0	0	—
ARCWOOD ENVIRONMENTAL, LLC	ORANGE, TX	2022	0	0	—
OLIN BLUE CUBE	FREEPORT, TX	2021	—	—	—
HEIDELBERG MATERIALS CEMENT COMPANY LLC	LOGANSPORT, IN	2021	—	—	—
OCCIDENTAL CHEMICAL OXYCHEM- PORTLAND PLANT	GREGORY, TX	2021	—	—	—
WESTLAKE CHEMICALS & VINYLS LLC - PLAQUEMINE FACILITY	PLAQUEMINE, LA	2021	—	—	—
OCCIDENTAL CHEMICAL CORPORATION - GEISMAR FACILITY	GEISMAR, LA	2021	1,997	1,971	26
WESTLAKE US 2 LLC	WESTLAKE, LA	2021	118	117	1
BLUE CUBE OPERATIONS LLC	PLAQUEMINE, LA	2021	62	62	—
THE DOW CHEMICAL COMPANY TEXAS OPERATIONS	FREEPORT, TX	2021	15	14	—
VEOLIA ES TECHNICAL SOLUTIONS	BEAUMONT, TX	2021	5	5	—
WESTLAKE VINYLS, INC.	CALVERT CITY, KY	2021	4	4	—