Superfund Information Systems: Site Profile

Superfund Site:

DEL AMO
LOS ANGELES, CA

Redevelopment

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About the Superfund Redevelopment Initiative

This nationally coordinated effort provides EPA and its partners with a process to return Superfund sites to productive use. Learn more at Superfund Redevelopment Initiative.

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Redevelopment at the Site

The 280-acre Del Amo Superfund site is located in Los Angeles, California, in an area known as the Harbor Gateway. The Del Amo synthetic rubber plant operated from 1943 until 1972. It consisted of three separate plants. Manufacturing generated various sludge wastes and wastewaters. Site operators deposited some of these wastes in unlined pits and evaporation ponds on the property. Manufacturing operations also resulted in releases of hazardous substances to the soil at various locations throughout the site. In the 1970s, most of the site was transformed into an industrial park. In 1981, the state required the cleanup of soil from one of the waste pits. In 1997, EPA proposed adding the site to the Superfund program’s National Priorities List (NPL), and the site was added to the NPL in 2002. Cleanup efforts to date have included capping the waste pits and extracting contaminated vapors from the soil beneath the waste pits, conducting soil removal actions in conjunction with construction and redevelopment projects throughout the site, and construction of a groundwater extraction and treatment system. Soil cleanup beneath the waste pits continues. EPA is working with potentially responsible parties and state agencies to initiate groundwater treatment. All but about 10 of the 280 acres that make up the site have been developed for industrial and commercial uses, including light manufacturing, warehousing and offices.

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Economic Activity at the Site

As of December 2018, EPA had data on 253 on-site businesses. These businesses employed 4,918 people and generated an estimated $1,304,436,464 in annual sales revenue. View additional information about redevelopment economics at Superfund sites.

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