# NORTHROP GRUMMAN SYSTEMS CORP. - TROY HILL 4

> EPA TRI Facility `2107WNRTHR715TR` · ELKRIDGE, MD · Active

## Address
- 7150 TROY HILL DR - SUITE 500
- ELKRIDGE, MD 21075
- County: HOWARD

## Mailing
- NORTHROP GRUMMAN SYSTEMS CORP. - TROY HILL 4
- ELKRIDGE, MD 21075

## Source
- EPA TRI Form R: https://www.epa.gov/toxics-release-inventory-tri-program/find-facility-tri-reports
- Envirofacts: https://www.epa.gov/enviro/facts-services-where-information-find-it