Intersil, Inc. and Siemens Components have manufactured semiconductors for several years on two locations covering 15 acres. Siemens currently is an operating facility; Intersil is now inactive. Investigations in 1982 as part of the California Regional Water Quality Control Board's (RWQCB�s) underground storage tank leak detection program found volatile organic compound (VOC)-contaminated soils on and off site. This contamination is believed to have resulted from localized spills and from leaking underground storage tanks and piping from the two companies. Following construction of the site�s remedy, operation and maintenance activities and groundwater treatment are ongoing.
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