Northrop Grumman Corp
14 facilities · 5 states · 1.8M lbs total releases
Northrop Grumman Corp operates 14 facilities reporting to the EPA Toxics Release Inventory, with combined releases of 1.8M lbs. 5 of the 41 chemicals reported are classified as carcinogens.
Northrop Grumman Corp appears in the EPA Toxics Release Inventory as the parent or reported corporate owner of 14 individual facilities filing Form R disclosures under EPCRA Section 313. Operations span 5 states, and across all sites the company has disclosed a cumulative release total of 1.8M lbs.
The aggregated chemical footprint covers 41 distinct substances, of which 5 carry a carcinogen classification in the EPA Toxics Release Inventory. The heaviest-reporting state by release volume is Utah (4 facilities, 1.3M lbs), followed by Virginia at 224.1K lbs. The single largest facility disclosure is NORTHROP GRUMMAN SYSTEMS CORP - PROMONTORY in UT at 1.2M lbs.
Parent-company aggregation uses the company name as reported by each facility on its annual TRI filing; mergers, divestitures, or reporting variations across subsidiaries can produce inconsistent attribution year over year. All values are self-reported estimates under federal community right-to-know law and are not weighted by toxicity. Inclusion in the TRI does not establish a health risk to the public, it documents the regulatory disclosure record.
Where does this company operate?
| State | Facilities | Total Releases |
|---|---|---|
| Utah | 4 | 1.3M lbs |
| Virginia | 2 | 224.1K lbs |
| West Virginia | 1 | 166.8K lbs |
| Maryland | 3 | 57.9K lbs |
| California | 4 | 21.9K lbs |
Facilities (14)
| Facility | Releases |
|---|---|
| Northrop Grumman Systems Corp - Promontory Promontory, UT | 1.2M lbs |
| Northrop Grumman Systems Corp (new River Energetics) Radford, VA | 224.0K lbs |
| Allegany Ballistics Lab (nirop) Rocket Center, WV | 166.8K lbs |
| Northrop Grumman Systems Corp - Bacchus Magna, UT | 47.7K lbs |
| Northrop Grumman Systems Corp Linthicum Heights, MD | 32.9K lbs |
| Northrop Grumman Systems Corp Linthicum, MD | 24.8K lbs |
| Northrop Grumman el Segundo El Segundo, CA | 18.0K lbs |
| Northrop Grumman Systems Corp Sunnyvale, CA | 3.6K lbs |
| Northrop Grumman Systems Corporation Manhattan Beach, CA | 280 lbs |
| Undersea Systems Annapolis, MD | 167 lbs |
| Northrop Grumman Systems Corp Charlottesville, VA | 43 lbs |
| Northrop Grumman Systems Corp Redondo Beach, CA | 10 lbs |
| Northrop Grumman Systems Coporation Salt Lake City, UT | 5 lbs |
| Northrop Grumman Systems Corp Aeronautics Systems Clearfield, UT | 0 lbs |
Frequently Asked Questions
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About This Data
Parent company data comes from the EPA Toxics Release Inventory (TRI). Release totals include all media (air, water, land, off-site transfers). Company names are reported as-is by facilities; some variations may refer to the same corporate entity.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files U.S. Environmental Protection Agency, TRI Basic Data Files
Read our methodology - how this data is sourced, computed, and verified.
Related
Every figure on PlainEnviro is rendered directly from EPA environmental compliance data, no number is typed in by an editor. Company release figures are computed directly from EPA Toxic Release Inventory data. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.