Martin Marietta Laboratories
1450 Rolling Road, South, Halethorpe, MD 21227
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
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Ngms-t348 | Linthicum | Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511 | LIKELY ACTIVE | 4.4 KM |
| Ngms-t300 | Linthicum | Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511 | LIKELY ACTIVE | 4.2 KM |
| Whel-tech INC | Catonsville | Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals 334515 | ACTIVE | 4.6 KM |
| Ngms-b901 | Linthicum | Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511 | LIKELY ACTIVE | 5.0 KM |
| Phillips Corporation | Hanover | Machine Tool Manufacturing 333517 | ACTIVE | 5.4 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 AIR, AIRS/AFS, MD-EPSC, MD-PEMIS, NPDES, RCRAINFO · EPA site type STATIONARY.
- EPA ECHO compliance recordsOPERATINGfirst seen AUG 2024 · last seen AUG 2024
- EPA Facility Registry ServiceEXISTENCERecord 110019864191 · first seen APR 2017 · last seen APR 2017
IN BALTIMORE COUNTY21 other plants share this one’s industry (Navigational, Measuring, Electromedical, and Control Instruments Manufacturing, NAICS 3345); 7 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: MARTIN MARIETTA LABORATORIES · OCT 2026
- Street address
- EPA: 1450 ROLLING ROAD, SOUTH · OCT 2026
- City
- EPA: HALETHORPE · OCT 2026
- State
- EPA: MD · OCT 2026
- County (FIPS code)
- EPA: 24005 · OCT 2026
- Coordinates
- EPA: 39.23427,-76.71442 · OCT 2026
- Hazardous waste generator (RCRA)
- EPA ECHO: none · OCT 2026