Signet Scientific CO
3401 Aerojet Avenue, El Monte, CA 91731
Present in a source dataset, with no recent operating signal.
What they make
Other Electronic Component Manufacturing334419Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| MGC Industrial Inc. | El Monte | Semiconductor and Related Device Manufacturing 334413 | LIKELY ACTIVE | 0.6 KM |
| Pearson Engineering CORP. | South El Monte | All Other Miscellaneous Fabricated Metal Product Manufacturing 332999 | ACTIVE | 1.4 KM |
| Hermetic Seal Corporation | Rosemead | Electroplating, Plating, Polishing, Anodizing, and Coloring 332813 | ACTIVE | 1.9 KM |
| Fabricast, INC | South El Monte | All Other Miscellaneous Electrical Equipment and Component Manufacturing 335999 | ACTIVE | 2.0 KM |
| Roselm Industries, INC. | South El Monte | Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 334220 | REPORTED CLOSED | 2.0 KM |
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 HWTS-DATAMART, RCRAINFO · EPA site type STATIONARY.
- EPA Facility Registry ServiceEXISTENCERecord 110002632688 · first seen JUN 2017 · last seen AUG 2024
- EPA ECHO compliance recordsOPERATINGfirst seen OCT 2014 · last seen OCT 2014
IN LOS ANGELES COUNTY345 other plants share this one’s industry (Semiconductor and Other Electronic Component Manufacturing, NAICS 3344); 78 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: SIGNET SCIENTIFIC CO · OCT 2026
- Street address
- EPA: 3401 AEROJET AVENUE · OCT 2026
- City
- EPA: EL MONTE · OCT 2026
- State
- EPA: CA · OCT 2026
- County (FIPS code)
- EPA: 06037 · OCT 2026
- Coordinates
- EPA: 34.06995,-118.06875 · OCT 2026
- Hazardous waste generator (RCRA)
- EPA ECHO: SQG · OCT 2026