FactoryRegistry
Claim a page

Barnmaster Supply LLC Dba Marnmaster

1720 E Locust St, Ontario, CA 91761

LIKELY ACTIVELAST SEEN IN FEDERAL DATA AUG 2025 · 2 SOURCES

Operating signal within 24 months, or from a single source.

DirectionsClaim this pageGet the badge

What they make

Iron Foundries331511

Where it is

34.04428, -117.61400 · CENSUS TIGER
COUNTY
METRO AREA
ON GOOGLE MAPS
STREET VIEW

Other plants nearby

FacilityCityIndustryStatusDistance
Net Shapes INCOntarioSteel Investment Foundries
331512
UNVERIFIED0.2 KM
Calidad, INC.OntarioNonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding
331491
ACTIVE0.6 KM
Paramount Panels, INC.OntarioCommercial Printing (except Screen and Books)
323111
ACTIVE0.8 KM
Net Shapes, INC.OntarioSteel Investment Foundries
331512
UNVERIFIED1.0 KM
Kim LightingOntarioNonferrous Metal Foundries
331521
UNVERIFIED1.4 KM

Every listed plant in San Bernardino County

Also at this address

No other federal record shares this street address.

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 NPDES, OSHA-OIS, RCRAINFO · EPA site type STATIONARY.

SourceEvidenceFirst seenLast seen
EPA ECHOOPERATINGAUG 2025AUG 2025
EPA FRSEXISTENCEAUG 2017AUG 2017
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
FIELDSOURCESIGNAL
ADDRESS LINE1EPA FRSJUL 2026
CITYEPA FRSJUL 2026
GEOMEPA FRSJUL 2026
NAMEEPA FRSJUL 2026
RCRA GENERATOR STATUSEPA ECHOAUG 2026
STATEEPA FRSJUL 2026

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

Report a correction · Request removal