In March 2019, EPA finalized an agreement with Philips Semiconductors, Inc. Vapor intrusion assessments conducted at the self-storage facility did not show any evidence of unacceptable vapor intrusion. Groundwater treatment and monitoring are ongoing. Several other commercial businesses also operate on the site and are not located above groundwater with elevated TCE levels. A developer bought the site property in 2006, demolished the former AMD buildings, and constructed a public self-storage facility in 2007. AMD removed soil contamination and treated contaminated groundwater. EPA issued a Record of Decision (ROD) in 1991 for the AMD 901/902 site, together with the TRW Microwave Inc. EPA added the site to the National Priorities List (NPL) in 1986. Facility operations contaminated soil and groundwater with volatile organic compounds, primarily trichloroethylene (TCE). AMD designed and manufactured semiconductor devices at two buildings on the site from 1969 to 1992. (AMD) 901/902 Superfund site covers six acres in Sunnyvale, California.
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