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Pacific Southwest, Region 9

Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations

Toxics Release Inventory, California

California Resources

Top Ten Chemical Releases


Chemical Total Releases
(in pounds)
Copper & Copper Compounds 5,630,344
Nitrate Compounds 5,073,831
Lead and Lead Compounds 4,887,617
Asbestos (Friable) 3,209,127
Ammonia 2,813,077
Methyl Tert-Butyl Ether 1,884,235
Styrene 1,219,474
Zinc & Zinc Compounds 1,198,390
N-Hexane 1,165,769
Toluene 1,124,466

Top Ten Facilities


Rank Facility Name City County Name Total Releases
(in pounds)
1 Clean Harbors Buttonwillow LLC Button-Willow Kern, CA 9,861,640
2 US Marine Corps Chocolate Mountains Aerial Gunnery Range Niland Imperial, CA 3,903,712
3 Chemical Waste Management, Inc. Kettleman City Kings, CA 3,901,513
4 Mesquite Mine Brawley Imperial, CA 2,583,483
5 Chevron Products Co. Div. of Chevron Usa Inc. El Segundo Los Angeles, CA 1,772,493
6 Quemetco Inc City of Industry Los Angeles, CA 1,576,634
7 SGL Technic Inc Polycarbon Div Santa Clarita Los Angeles, CA 1,332,051
8 Conoco Phillips - San Francisco Refinery Rodeo Contra Costa, CA 896,733
9 BP West Coast Products LLC Carson Carson Los Angeles, CA 579,055
10 Valero Refining Co - California Benicia Refinery Benicia Solano, CA 504,472

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