Facility	City	Industry	Status	Distance
National Signal LLC	La Mirada	Other Communications Equipment Manufacturing 334290	UNVERIFIED	0.1 KM
Services & Materials CO	La Mirada	Glass Product Manufacturing Made of Purchased Glass 327215	UNVERIFIED	0.5 KM
Sector Tech INC	Santa Fe Springs	Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 334220	LIKELY ACTIVE	1.0 KM
Communications Supply Corporation	Buena Park	Other Communications Equipment Manufacturing 334290	LIKELY ACTIVE	1.6 KM
Hochiki America Corporation	Buena Park	Other Communications Equipment Manufacturing 334290	LIKELY ACTIVE	1.8 KM

Every listed plant in Los Angeles 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.

National Signal LLC

La Mirada, CA

UNVERIFIED334290

WHERE THIS RECORD COMES FROM — 2 FEDERAL SOURCES, 6 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 CA-ENVIROVIEW, NPDES, OSHA-OIS, RCRAINFO · EPA site type STATIONARY.

Source	Evidence	First seen	Last seen
EPA FRS	EXISTENCE	AUG 2019	AUG 2024
EPA ECHO	OPERATING	MAY 2021	MAY 2021

FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT

FIELD	SOURCE	SIGNAL
ADDRESS LINE1	EPA FRS	JUL 2026
CITY	EPA FRS	JUL 2026
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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