Northrop Grumman Systems CORP -troy Hill 4
7150 Troy Hill Dr, Elkridge, MD 21075
UNVERIFIEDLAST SEEN IN FEDERAL DATA — · 2 SOURCES
Present in a source dataset, with no recent operating signal.
What they make
Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing334511Where it is
39.19581, -76.75282 · CENSUS TIGER
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Ngms-q953 | Elkridge | Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511 | LIKELY ACTIVE | 0.2 KM |
| Troy Hill Industrial Park - Ngsc Msat3 | Elkridge | Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511 | UNVERIFIED | 0.3 KM |
| Northrop Grumman Systems Corporation- Troy Hill 2 (ste 2a) | Elkridge | Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511 | UNVERIFIED | 0.3 KM |
| Northrop Grumman Systems Corporation - Troy Hill 1 | Elkridge | Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511 | LIKELY ACTIVE | 0.5 KM |
| Teledyne Flir Defense, INC. | Elkridge | Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511 | LIKELY ACTIVE | 0.5 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 NPDES, RCRAINFO, TRIS · EPA site type STATIONARY.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| EPA ECHO | OPERATING | JUL 2024 | JUL 2024 |
| EPA FRS | EXISTENCE | FEB 2010 | FEB 2010 |
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.