Westlake Royal Stone LLC

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
AGAdp Granite & Marble Design INC	San Marcos	Cut Stone and Stone Product Manufacturing 327991	◐ LIKELY ACTIVE	0.6 KM
Rs Hughes CO INC	Vista	Adhesive Manufacturing 325520	● ACTIVE	2.5 KM
International Industrial Supply Incorporated	San Marcos	Power-Driven Handtool Manufacturing 333991	● ACTIVE	3.9 KM
LILamvin inc	Oceanside	Mineral Wool Manufacturing 327993	◐ LIKELY ACTIVE	10.8 KM
Preciado Jeffrey	Oceanside	All Other Miscellaneous Fabricated Metal Product Manufacturing 332999	● ACTIVE	17.9 KM

Every listed plant in San Diego County

Also at this address

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

Where this record comes from

1 source holds 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 RCRAINFO · EPA site type STATIONARY.

• EPA Facility Registry ServiceEXISTENCE
  Record 110071191625 · first seen JAN 2022 · last seen JAN 2022

IN SAN DIEGO COUNTY60 other plants share this one’s industry (Other Nonmetallic Mineral Product Manufacturing, NAICS 3279); 8 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: WESTLAKE ROYAL STONE LLC · OCT 2026

Street address

EPA: 1370 GRAND AVE BLDG B · OCT 2026

City

EPA: SAN MARCOS · OCT 2026

State

EPA: CA · OCT 2026

County (FIPS code)

EPA: 06073 · OCT 2026

Coordinates

EPA: 33.143567,-117.193197 · OCT 2026

Hazardous waste generator (RCRA)

EPA ECHO: none · OCT 2026