Superior Quartz INC Dba Silica Engineering Group

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
Westcoast Precision, INC	San Jose	Machine Shops 332710	● ACTIVE	2.8 KM
Cpk Manufacturing INC	San Jose	Other Motor Vehicle Parts Manufacturing 336390	◐ LIKELY ACTIVE	3.3 KM
ATAdvanced Tek Machining	San Jose	Machine Shops 332710	◇ UNVERIFIED	6.0 KM
Casco Machining, INC.	San Jose	Machine Shops 332710	● ACTIVE	5.5 KM
TITesla INC	Fremont	Semiconductor and Related Device Manufacturing 334413	◐ LIKELY ACTIVE	6.2 KM

Every listed plant in Santa Clara County

Also at this address

No other federal record shares this street address.

Where this record comes from

1 source holds this plant, and 7 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.

EPA cross-references this facility in RCRAINFO · EPA site type STATIONARY.

• EPA Facility Registry ServiceEXISTENCE
  Record 110071675380 · first seen APR 2024 · last seen APR 2024

IN SANTA CLARA COUNTY90 other plants share this one’s industry (Motor Vehicle Parts Manufacturing, NAICS 3363); 2 of them have a size band on record.

What each source says

Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

Name

EPA: SUPERIOR QUARTZ INC DBA SILICA ENGINEERING GROUP · OCT 2026

Street address

EPA: 1126 YOSEMITE DR · OCT 2026

City

EPA: MILPITAS · OCT 2026

State

EPA: CA · OCT 2026

County (FIPS code)

EPA: 06085 · OCT 2026

Coordinates

EPA: 37.425351,-121.884837 · OCT 2026

Hazardous waste generator (RCRA)

EPA ECHO: none · OCT 2026