Superfund Information Systems: Site Profile

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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 75-acre Westinghouse Electric Corporation (Sunnyvale Plant) Superfund site is located in Sunnyvale, California. The Westinghouse Electric Corporation used the facility to manufacture electrical transformers. During this time, groundwater contamination resulted from a leaking storage tank and spills on site. Site investigations also found fuel and other contamination in area groundwater and soil. EPA added the site to the Superfund program’s National Priorities List (NPL) in 1986. Cleanup activities included the removal or paving of contaminated areas and the removal and treatment of contaminated groundwater. In 1996, Northrop Grumman purchased the site. The company is a U.S. defense contractor that employs nearly 1,000 people at the facility.

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Economic Activity at the Site

As of December 2019, EPA had data on 7 on-site businesses. These businesses employed 1,044 people and generated an estimated $510,307,000 in annual sales revenue. View additional information about redevelopment economics at Superfund sites.

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