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Cooper Drum Company
Cooper Drum Company recycled closed top, steel drums on a facility in South Gate, California from 1976 to 2003. They used strong chemicals to recondition the drums, leading to public concern about health impacts on the surrounding community. In particular, staff and students from Tweedy Elementary School, which borders the Cooper Drum site to the south, complained of health problems that may have resulted from exposure to toxic chemical coming from Cooper Drum Company. In June 2001, the Cooper Drum site was placed on the Superfund list, marking the site as one of the most high priority toxic cleanup sites in the United States.
==History==
The Cooper Drum site is located at 9316 South Atlantic Avenue in South Gate, Los Angeles California. The site is bordered by industrial properties to the north and east, commercial/residential properties to the west, and Tweedy Elementary School to the south. The site had been used for reconditioning steel drums since 1941 by a series of recycling companies. In 1976, the site was purchased by Cooper Drum Company.〔(EPA Cooper Drum Site Website )〕 Cooper Drum Company’s main recycling operation was reconditioning steel drums. Initially the drum reconditioning was conducted along the southern portion of the property. This was an assembly line process along an elevated concrete floor. Drums were flushed and stripped with sodium hydroxide in preparation for painting and resale. The fluids from reconditioning were transferred to two holding tanks and five clarifiers. Any solid precipitate was pumped out and transported for off-site disposal, while the liquid was reused in the conditioning process. When the drums contained solid or highly viscous material, they were subjected to hard washing. From 1976 to 1992 hard washing was conducted on the northern part of the property. During this time, hard washing consisted of placing chains and sodium hydroxide inside the drums and rolling the drums over four concrete sumps that were fitted with grates. The runoff was collected in the four sumps that were connected by open concrete trenches.
In 1992, the drum reconditioning business was purchased by Waymire Drum Company resulting in a number of changes. Firstly, the hard washing operations were moved to the southern portion of the property and high pressure spraying was used in the place of chaining. Additionally, all the collection sumps and trenches, which had been open to the air were replaced with close topped steel tanks and hard piping. The tanks were placed over the sumps and hard piping over the trenches, allowing the initial sumps and trenches to serve as secondary containment for the upgraded equipment.〔http://www.epa.gov/superfund/sites/npl/nar1627.htm〕
While the Cooper Drum site was owned by Waymire Drum Company, it was fitted to process plastic totes. Since 2003, no drum processing operations have occurred, and all drum processing equipment has been removed. From 2003 to 2006 the site was used by a pallet company, a trucking and towing company, and two automotive repair and salvage companies.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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