Keystone Engineering CO
4401 Donald Douglas Drive, Long Beach, CA 90808
LIKELY ACTIVELAST SEEN IN FEDERAL DATA OCT 2024 · 2 SOURCES
Operating signal within 24 months, or from a single source.
What they make
Electroplating, Plating, Polishing, Anodizing, and Coloring332813Where it is
33.81887, -118.14182 · CENSUS TIGER
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Artistic Silver Plating INC | Signal Hill | Electroplating, Plating, Polishing, Anodizing, and Coloring 332813 | UNVERIFIED | 3.8 KM |
| Cooperheat | Long Beach | Metal Heat Treating 332811 | UNVERIFIED | 4.2 KM |
| Gilmore Music | Long Beach | Electroplating, Plating, Polishing, Anodizing, and Coloring 332813 | UNVERIFIED | 5.4 KM |
| Lubeco INC | Long Beach | Petroleum Lubricating Oil and Grease Manufacturing 324191 | LIKELY ACTIVE | 6.8 KM |
| Blairs Metal Polishing | Cerritos | Electroplating, Plating, Polishing, Anodizing, and Coloring 332813 | UNVERIFIED | 6.7 KM |
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 BR, CA-ENVIROVIEW, HWTS-DATAMART, NPDES, RCRAINFO, TRIS · EPA site type STATIONARY.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| EPA ECHO | OPERATING | OCT 2024 | OCT 2024 |
| EPA FRS | EXISTENCE | DEC 2015 | AUG 2024 |
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 |
| RCRA GENERATOR STATUS | EPA ECHO | AUG 2026 |
| STATE | EPA FRS | JUL 2026 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.
