FRS Facility Detail Report


SUMITOMO SITIX SILICON

EPA Registry Id: 110000482905
49070 MILMONT DRIVE
FREMONT, CA 94538-7301


The facility locations displayed
come from the FRS Spatial
Coordinates tables. They are the
best representative locations for
the displayed facilities based on
the accuracy of the collection
method and quality assurance
checks performed against each
location. The North American
Datum of 1983 is used to display
all coordinates.

Environmental Interests

Information System System Facility Name Information System Id/Report Link Environmental Interest Type Data Source Last Updated Date Supplemental Environmental Interests:
TOXICS RELEASE INVENTORY SYSTEM
SUMCO USA 94538SMTMS49070 TRI REPORTER TRIS

INTEGRATED COMPLIANCE INFORMATION SYSTEM SUMITOMO SITIX SILICON INCORPORATED 21904 FORMAL ENFORCEMENT ACTION ICIS 06/14/1999 ICIS-09-1998-0149
FORMAL ENFORCEMENT ACTION
NATIONAL COMPLIANCE DATABASE
SUMITOMO SITIX SILICON INC D09#EPCRA09-98-0009 COMPLIANCE ACTIVITY NCDB

EMISSION INVENTORY SYSTEM (EIS)
SUMITOMO SITIX SILICON 200211 HAZARDOUS AIR POLLUTANT MAJOR EIS 08/26/2021
RESOURCE CONSERVATION AND RECOVERY ACT INFORMATION SYSTEM
US SEMICONDUCTOR SERVICES INC CAD981165160 SQG (Y) RCRAINFO

NATIONAL COMPLIANCE DATABASE
SUMITOMO SITIX SILICON INC I09#1998030410566 1 COMPLIANCE ACTIVITY NCDB

Additional EPA Reports:  

MyEnvironment  Enforcement and Compliance  Facility Coordinates Viewer  Watershed Report

Standard Industrial Classification Codes (SIC)

Data Source SIC Code Description Primary
TRIS
3674
SEMICONDUCTORS AND RELATED DEVICES

Facility Codes and Flags

EPA Region: 09
Duns Number:
Congressional District Number: 17
Legislative District Number: 2
HUC Code/Watershed: 18050003 / COYOTE
US Mexico Border Indicator: NO
Federal Facility: NO
Tribal Land: NO

Alternative Names

Alternative Name Source of Data
SUMCO USA TRIS
SUMITOMO SITIX SILICON, INC., FREMONT DIV. RMP REPORTING FORM
US SEMICONDUCTOR SERVICES INC RCRAINFO

Organizations

Affiliation Type Name DUNS Number Information System Mailing Address
PARENT COMPANY
SUMCO USA CORP
TRIS


National Industry Classification System Codes (NAICS)

Data Source NAICS Code Description Primary
TRIS 334413 SEMICONDUCTOR AND RELATED DEVICE MANUFACTURING.
EIS 334413 SEMICONDUCTOR AND RELATED DEVICE MANUFACTURING.

Facility Mailing Addresses

Affiliation Type Delivery Point City Name State Postal Code Information System
FACILITY MAILING ADDRESS 1183 BORDEAUX DR SUNNYVALE CA 94089 RCRAINFO
MAILING ADDRESS 49070 MILMONT DR. FREMONT CA 94538 TRIS

Contacts

Affiliation Type Full Name Office Phone Information System Mailing Address
PUBLIC CONTACT
ERIC NIELSEN
5106513778
TRIS


PUBLIC CONTACT
ERIC NIELSEN
5106513778
TRIS


Query executed on: OCT-15-2025


Additional information for CERCLIS or TRI sites:

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