Facility	City	Industry	Status	Distance
Tamco	Rancho Cucamonga	Iron and Steel Mills and Ferroalloy Manufacturing 331110	UNVERIFIED	0.1 KM
Tervita LLC	Rancho Cucamonga	Ground or Treated Mineral and Earth Manufacturing 327992	UNVERIFIED	0.1 KM
Commercial Metals Company	Etiwanda	Iron and Steel Mills and Ferroalloy Manufacturing 331110	UNVERIFIED	0.1 KM
Gerdau	Rancho Cucamonga	Iron and Steel Mills and Ferroalloy Manufacturing 331110	UNVERIFIED	0.1 KM
Kaiser Commerce Center	Fontana	Iron and Steel Mills and Ferroalloy Manufacturing 331111	UNVERIFIED	2.6 KM

Every listed plant in San Bernardino County

Also at this address

More than one federal record exists for this street address. The primary record for the site is listed first.

Gerdau

Rancho Cucamonga, CA

UNVERIFIED331110

WHERE THIS RECORD COMES FROM — 1 FEDERAL SOURCE, 5 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 BR, NPDES, OSHA-OIS · EPA site type STATIONARY.

Source	Evidence	First seen	Last seen
EPA FRS	EXISTENCE	AUG 2020	AUG 2020

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
STATE	EPA FRS	JUL 2026

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

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