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Northrop Grumman

Rank in Toxic 100 Water: 2
Surface Water releases 2017 (lbs): 3
POTW (sewerage plant) transfers 2017 (lbs): 211,474
Pounds released post-treatment 2017 (lbs): 17,939
Total Surface Water and POTW Toxic Hazard 2017: 37,651,979,847
Percentage of national total 2017 surface water and POTW hazard: 14.6%

This company is rank 24 on the Toxic 100 Air list.
This company has information in PERI's Greenhouse database.

Facilities displayed below: (
display chemicals at facilities) (display chemicals)
(Click on column headers to re-sort table: current sort is by state.)
(Links on facility names lead to full TRI reports. Links on cities lead to Mapquest maps.)
Split *
NORTHROP GRUMMAN AEROSPACE SYSTEMS MANHATTAN BEACH CA 0 0 0 0 0.00%
ATK SPACE SYSTEMS INC LOS ANGELES CA 0 0 0 0 0.00%
NORTHROP GRUMMAN SYSTEMS CORP SUNNYVALE CA 3 2 4 762,919 0.00%
NORTHROP GRUMMAN - APOPKA APOPKA FL 0 0 0 0 0.00%
NORTHROP GRUMMAN SYSTEMS CORP LINTHICUM MD 0 3 1 16,763 0.00%
ATK LAUNCH SYSTEMS-BACCHUS MAGNA UT 0 1 0 351,288 0.00%
NORTHROP GRUMMAN SYSTEMS COPORATION SALT LAKE CITY UT 0 0 0 723 0.00%
ATK LAUNCH SYSTEMS PROMONTORY PROMONTORY UT 0 0 0 0 0.00%
ALLIANT TECHSYSTEMS OPERATIONS LLC (NEW RIVER ENERGETICS) RADFORD VA 0 211,467 17,934 37,650,839,017 100.00%
NORTHROP GRUMMAN SYSTEMS CORP CHARLOTTESVILLE VA 0 1 1 9,137 0.00%
ATK-ALLEGANY BALLISTICS LAB (NIROP) ROCKET CENTER WV 0 0 0 0 0.00%

Toxic hazard: Pounds of direct releases to surface water and estimated releases from transfers to Publicly Operated Treatment Works (POTW's) reported in the US Environmental Protection Agency's Toxics Release Inventory for the year 2017, weighted by toxicity of chemicals. Weights are from the EPA's Risk-Screening Environmental Indicators project. For details, see technical notes.

Quantity of toxic surface water releases and POTW transfers: Pounds of toxic chemicals released directly to surface water at each TRI facility or transferred off-site to a POTW, without weighting for toxicity or population.

Quantity of toxic post-treatment releases: Pounds of toxic chemicals released directly to surface water plus released after treatment at POTW's.

* Split: if 50% appears in this column, then the facility's releases have been split among two 50/50% ownership parent companies for their parent company data, although the full pounds and hazard are displayed here.

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