Superfund Site:

INTERSIL INC./SIEMENS COMPONENTS
CUPERTINO, CA

Superfund Site Profile

Site Contacts

Remedial Project Manager
Melanie Morash
(415) 972-3050

Site Location

Street Address:
10900 N TANTAU AVE/19000 HOMESTEAD RD
CUPERTINO, CA 95014

Background

The Intersil/Siemens Superfund Site includes the following three areas: 1) the former Intersil facility, located at 10900 North Tantau Avenue, Cupertino; 2) the former Siemens facility, located at 10950 North Tantau Avenue, Cupertino; and 3) the Off-Site Study Area, located north of and hydraulically downgradient from the two former facilities in Sunnyvale. Investigations conducted in the 1980s as part of the California Regional Water Quality Control Board's (Regional Board’s) underground storage tank (UST) leak detection program found volatile organic compounds (VOCs) in soil on- and off-site. The primary contaminant of concern at the site is the VOC, trichloroethene (TCE).


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