♦ Carcinogen

Vinylidene chloride

CAS # 75-35-4

232,499 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) -70% overall

Year	Total Released (lbs)	Reporting Facilities	vs Prior Year
2015	35,932	26	—
2016	20,073	23	-44%
2017	17,904	24	-11%
2018	22,562	22	+26%
2019	8,909	9	-61%
2020	30,691	29	+245%
2021	63,116	26	+106%
2022	10,232	20	-84%
2023	12,336	18	+21%
2024	10,744	18	-13%

Top Releasing Industries

Industry Sector	Total Released (lbs)	Facilities
Manufacturing	176,653	26
Administrative and Support and Waste Management	55,846	11

Facility	Location	Year	Total (lbs)	Air	Water
LUBRIZOL ADVANCED MATERIALS	LOUISVILLE, KY	2024	—	—	—
OWENSBORO SPECIALTY POLYMERS	OWENSBORO, KY	2024	6,525	6,525	—
WESTLAKE US 2 LLC	WESTLAKE, LA	2024	2,990	2,990	—
WESTLAKE VINYLS CO LP	GEISMAR, LA	2024	441	441	—
OCCIDENTAL CHEMICAL CORPORATION - GEISMAR FACILITY	GEISMAR, LA	2024	361	356	5
DDP SPECIALTY ELECTRONIC MATERIALS US LLC	DALTON, GA	2024	238	238	—
OXY VINYLS LP - LA PORTE VCM PLANT	LA PORTE, TX	2024	49	49	—
WESTLAKE CHEMICALS & VINYLS LLC - PLAQUEMINE FACILITY	PLAQUEMINE, LA	2024	34	34	—
WESTLAKE CHEMICALS & VINYLS LLC	WESTLAKE, LA	2024	31	31	—
SHINTECH PLAQUEMINE PLANT	PLAQUEMINE, LA	2024	31	31	—
OLIN BLUE CUBE	FREEPORT, TX	2024	27	27	—
WESTLAKE VINYLS, INC.	CALVERT CITY, KY	2024	10	10	—
VEOLIA ES TECHNICAL SOLUTIONS	BEAUMONT, TX	2024	3	3	—
OCCIDENTAL CHEMICAL OXYCHEM- PORTLAND PLANT	GREGORY, TX	2024	2	2	—
CLEAN HARBORS DEER PARK LLC	LA PORTE, TX	2024	1	1	—
HERITAGE THERMAL SERVICES	EAST LIVERPOOL, OH	2024	1	1	—
EQUILON LUBRICANTS CO - DEER PARK	DEER PARK, TX	2024	0	0	—
ROSS INCINERATION SERVICES (GRAFTON, OH)	GRAFTON, OH	2024	0	0	—
OWENSBORO SPECIALTY POLYMERS	OWENSBORO, KY	2023	8,298	8,298	—
WESTLAKE US 2 LLC	WESTLAKE, LA	2023	2,673	2,673	—
WESTLAKE VINYLS CO LP	GEISMAR, LA	2023	425	425	—
WESTLAKE CHEMICALS & VINYLS LLC - PLAQUEMINE FACILITY	PLAQUEMINE, LA	2023	272	272	—
OCCIDENTAL CHEMICAL CORPORATION - GEISMAR FACILITY	GEISMAR, LA	2023	247	243	4
DDP SPECIALTY ELECTRONIC MATERIALS US LLC	DALTON, GA	2023	153	153	—
LUBRIZOL ADVANCED MATERIALS	LOUISVILLE, KY	2023	120	120	—
OXY VINYLS LP - LA PORTE VCM PLANT	LA PORTE, TX	2023	48	48	—
OLIN BLUE CUBE	FREEPORT, TX	2023	45	45	—
SHINTECH PLAQUEMINE PLANT	PLAQUEMINE, LA	2023	30	30	—
WESTLAKE VINYLS, INC.	CALVERT CITY, KY	2023	10	10	—
WESTLAKE CHEMICALS & VINYLS LLC	WESTLAKE, LA	2023	5	5	—
CLEAN HARBORS DEER PARK LLC	LA PORTE, TX	2023	4	4	—
OCCIDENTAL CHEMICAL OXYCHEM- PORTLAND PLANT	GREGORY, TX	2023	2	2	—
VEOLIA ES TECHNICAL SOLUTIONS	BEAUMONT, TX	2023	2	2	—
HERITAGE THERMAL SERVICES	EAST LIVERPOOL, OH	2023	1	1	—
CLEAN HARBORS EL DORADO LLC	EL DORADO, AR	2023	0	0	—
EQUILON LUBRICANTS CO - DEER PARK	DEER PARK, TX	2023	0	0	—
OWENSBORO SPECIALTY POLYMERS	OWENSBORO, KY	2022	5,224	5,224	—
WESTLAKE US 2 LLC	WESTLAKE, LA	2022	2,714	2,714	—
OCCIDENTAL CHEMICAL CORPORATION - GEISMAR FACILITY	GEISMAR, LA	2022	1,169	1,163	6
WESTLAKE VINYLS CO LP	GEISMAR, LA	2022	395	395	—
WESTLAKE CHEMICALS & VINYLS LLC - PLAQUEMINE FACILITY	PLAQUEMINE, LA	2022	163	163	—
DDP SPECIALTY ELECTRONIC MATERIALS US LLC	DALTON, GA	2022	158	158	—
LUBRIZOL ADVANCED MATERIALS	LOUISVILLE, KY	2022	148	148	—
OLIN BLUE CUBE	FREEPORT, TX	2022	132	132	—
OXY VINYLS LP - LA PORTE VCM PLANT	LA PORTE, TX	2022	47	47	—
SHINTECH PLAQUEMINE PLANT	PLAQUEMINE, LA	2022	30	30	—
CLEAN HARBORS ENVIRONMENTAL SERVICES INC	KIMBALL, NE	2022	26	26	—
WESTLAKE VINYLS, INC.	CALVERT CITY, KY	2022	11	11	—
WESTLAKE CHEMICALS & VINYLS LLC	WESTLAKE, LA	2022	4	4	—
CLEAN HARBORS DEER PARK LLC	LA PORTE, TX	2022	4	4	—