Matheson Tri-gas

16125 Ornelas St, Irwindale, CA 91706

UNVERIFIEDLAST SEEN IN FEDERAL DATA FEB 2021 · 2 SOURCES

Present in a source dataset, with no recent operating signal.

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What they make

Industrial Gas Manufacturing325120

Where it is

34.11105, -117.93086 · CENSUS TIGER

COUNTY

Los Angeles County

METRO AREA

Los Angeles-Long Beach-Anaheim, CA

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Other plants nearby

Facility	City	Industry	Status	Distance
Norac Pharma (s&b Pharma Dba Norac Pharma)	Azusa	Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing 325194	LIKELY ACTIVE	0.7 KM
Specialty Organics INC	Irwindale	Synthetic Dye and Pigment Manufacturing 325130	UNVERIFIED	0.8 KM
Refrigerant Exchange CORP	Irwindale	All Other Basic Organic Chemical Manufacturing 325199	UNVERIFIED	0.8 KM
Criterion Catalysts & Technologies LP	Azusa	Other Basic Inorganic Chemical Manufacturing 325188	UNVERIFIED	3.2 KM
R.s. Hughes Co, INC	Duarte	Hardware Manufacturing 332510	ACTIVE	4.6 KM

Every listed plant in Los Angeles County

Also at this address

No other federal record shares this street address.

Where this record comes from

2 sources hold 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 CA-CERS, CA-ENVIROVIEW, NPDES, RCRAINFO, TRIS · EPA site type STATIONARY.

EPA ECHO compliance recordsOPERATING
first seen FEB 2021 · last seen FEB 2021
EPA Facility Registry ServiceEXISTENCE
Record 110000770363 · first seen DEC 2015 · last seen DEC 2015

IN LOS ANGELES COUNTY202 other plants share this one’s industry (Basic Chemical Manufacturing, NAICS 3251); 23 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: MATHESON TRI-GAS · OCT 2026
Street address: EPA: 16125 ORNELAS ST · OCT 2026
City: EPA: IRWINDALE · OCT 2026
State: EPA: CA · OCT 2026
County (FIPS code): EPA: 06037 · OCT 2026
Coordinates: EPA: 34.11105,-117.93086 · OCT 2026
Hazardous waste generator (RCRA): EPA ECHO: none · OCT 2026

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