Facility	City	Industry	Status	Distance
Timet	Vallejo	Rolled Steel Shape Manufacturing 331221	UNVERIFIED	8.1 KM
Saratoga Energy Research Partners	Berkeley	Alumina and Aluminum Production and Processing 331311	UNVERIFIED	18.9 KM
Cass INC	Oakland	Alumina and Aluminum Production and Processing 331312	LIKELY ACTIVE	22.4 KM
Aepnus Technology INC	Emeryville	Alumina Refining and Primary Aluminum Production 331313	UNVERIFIED	22.4 KM
Brimstone Commercial, LLC	Oakland	Cement Manufacturing 327310	LIKELY ACTIVE	23.3 KM

Every listed plant in Contra Costa County

Also at this address

1 other record shares this street address. Separate filings can describe distinct businesses on one site, or the same plant recorded by different agencies, so every record is kept rather than merged away.

A & B Die Casting INC

Hercules, CA

UNVERIFIED331521

WHERE THIS RECORD COMES FROM — 2 FEDERAL SOURCES, 7 FIELDS

Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.

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

Source	Evidence	First seen	Last seen
OSHA ITA	OPERATING	DEC 2025	DEC 2025
EPA FRS	EXISTENCE	SEP 2018	SEP 2018

FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT

FIELD	SOURCE	SIGNAL
ADDRESS LINE1	EPA FRS	JUL 2026
CITY	EPA FRS	JUL 2026
EMPLOYEE BAND	OSHA ITA	DEC 2025
GEOM	EPA FRS	JUL 2026
NAME	EPA FRS	JUL 2026
RCRA GENERATOR STATUS	EPA ECHO	AUG 2026
STATE	EPA FRS	JUL 2026

Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

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