Westlake Royal Stone LLC - American Canyon, CA
350 Tower Road, American Canyon, CA 94503
LIKELY ACTIVELAST SEEN IN FEDERAL DATA DEC 2025 · 1 SOURCE
Operating signal within 24 months, or from a single source.
What they make
Other Concrete Product Manufacturing327390Where it is
38.21161, -122.26223 · CENSUS TIGER
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Boral Stone Products LLC | American Canyon | Pottery, Ceramics, and Plumbing Fixture Manufacturing 327110 | UNVERIFIED | 0.0 KM |
| Csr Hydro Conduit | Napa | Concrete Pipe Manufacturing 327332 | UNVERIFIED | 0.0 KM |
| Foley Products Company - Napa | American Canyon | Concrete Pipe Manufacturing 327332 | LIKELY ACTIVE | 0.1 KM |
| Napa Valley Cast Stone | American Canyon | Concrete Pipe Manufacturing 327332 | UNVERIFIED | 2.1 KM |
| Calmat CO Dba Shamrock Materials | Napa | Ready-Mix Concrete Manufacturing 327320 | UNVERIFIED | 5.7 KM |
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 FEDERAL SOURCE, 2 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.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| OSHA ITA | OPERATING | DEC 2025 | DEC 2025 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| EMPLOYEE BAND | OSHA ITA | DEC 2025 |
| GEOM | CENSUS GEOCODER | JUL 2026 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.